Rsafele Electric Product Overview II

>Substation-Wide Intelligent Online Condition Monitoring System >Power Transformer Intelligent Online Condition Monitoring System >GIS Intelligent Online Condition Monitoring System A Switchgear Intelligent Online Condition Monitoring System A Generator Intelligent Online Condition Monitoring System > Power Cable Intelligent Online Condition Monitoring System >Substation Intelligent Integrated Auxiliary Monitoring& Control System

Rsafele China Continuous Innovation & Renewal

OurHistory, Since 2006...
Ourcompany specializesin the electrical field.
Ourpursuitistobe the expert in power switchesand protection. Our goal is to be the world-leading brand in power grid safety. From 220 volts to 550kilovolts,
18 major series,with over 800 specifications
Over10,0o0 applications and more than 100,000 case studies WeenergizeChina'sTwoMajorPowerGrids&
FiveMajorPowerConglomerates.
WeflowwiththeSouth-to-NorthWaterDiversion&
West-to-EastGasTransmission.
We surge with the power of the Three Gorges.
We soar alongside China'sthrivingaerospace sector.
We shine with the brilliance of green energy.

1. Company Profile

Founded in 2O06,Rsafele Electric has developed into a national high-tech enterprise integrating R&D, manufacturing and sales.Our company owns a large number of independent intelectual property rights and holds certifications for the ISO Quality Management System,Environmental Management System and Occupational Health& Safety Management System.We have beenawarded multiple honors,including National Specialized, Refined,Unique&Innovative "Litle Giant"Enterprise,Zhejiang Hidden Champion Enterprise,Zhejiang Inovative Demonstration SME,Zhejiang Patent Demonstration Enterprise, Zhejiang Integrity Demonstration SME, Government Quality Award Winner,Harmonious Labor Relations Enterprise,AAACredit-Rated Enterprise,and an import& export self-operated enterprise.

RsafeleElectric has built extensive in-depth industry-university-research strategic cooperation with renowned institutions such as Zhejiang University,Shanghai Jiao Tong University and CETC No.36 Research Institute.By introducing,asimilatingandre-innovatingadvanced technologies,wehaveestablishedamulti-leveltechnological innovationsystem.Our productsare widelyapplied inpower grids,power plants,rail transit,airports,ports,ronand steel,petrochemicalandothersctors,efectively improving theoperationalreliabilityandsafetyof powersystems.

Upholding the core values of "People-Oriented,Committed to Society",Rsafele Electric adheres to its corporate philosophy:"Drive development through technology,win credibility via service,build brand with quality, and continuously pursue customer satisfaction."We are dedicated to providing more innovative,premium and safer productsandconsistently creating greater value for all customers.Commited to becoming a global leader in power grid safety,Rsafele Electric has gained wide recognition and trust from clients worldwide.

1.1 Smart Integrated Station Monitoring& Control Platform 005
1.2 Smart Station Topology Diagram 007
2.Transformer Intelligent Integrated Online Condition Monitoring System
2.1 Transformer Intelgent Integrated Online Condition Monitoring System 009
2.2 Transformer Insulation Online Condition Monitoring System 011
2.3 Transformer DGA Online Condition Monitoring System 013
2.4 Transformer Oil Spectrum Analysis Online Condition Monitoring System 015
2.5 Transformer PD Online Condition Monitoring System 017
2.6 Transformer Acoustic& Vibration Online Condition Monitoring System 019
2.7Transformer Dual-Spectrum IR& Visible Video Online Condition Monitoring System 021
2.8 Transformer Core & Clamp Ground Current Online Condition Monitoring System 023
2.9 Transformer Bushing PD Online Condition Monitoring System 025
2.10 Transformer Bushing Dielectric Loss (tan δ) Online Condition Monitoring System 027
2.11 Transformer Winding Fiber-Optic Temperature Monitoring System 029
2.12 Transformer OLTC Online Condition Monitoring System 031
2.13 Transformer Neutral-point DC Current Online Condition Monitoring System 033
2.14 Transformer Forced Air Cooling Intelligent Control Cabinet 035
2.15 Transformer Intelligent Component Cabinet 037
2.16 Dry-type Transformer Online Condition Monitoring System 039
2.17Packaged Substation Intelligent Measurement, Control & Protection Device 041
2.18 Packaged Substation Intelligent Integrated Environmental Monitoring & Control Device O43
3. GIS Intelligent Integrated Online Condition Monitoring System
3.1 GIS Inteligent Integrated Online Condition Monitoring System 045
3.2 GIS SF Gas Moisture & Density Online Condition Monitoring System 047
3.3 GIS PD Online Condition Monitoring System 049
3.4 GIS Surge Arrester Online Condition Monitoring System 051
3.5GIS Mechanical Characteristics Online Condition Monitoring System 053
3.6 GIS Busbar Deformation Online Condition Monitoring System 055
3.7High-Voltage Live Display& Interlock Device 057
3.8 SF Gas Leakage Environmental Monitoring& Control System 059

4.SwitchgearIntelligentIntegrated OnlineConditionMonitoringSystem

4.1Switchgear Intelligent Integrated Online Condition Monitoring System 061
4.2 Switchgear PD Online Condition Monitoring System 063
4.3Switchgear Mechanical Characteristics Online Condition Monitoring System 065
4.4Switchgear Intelligent Control Device 067
4.5SwitchgearArc Flash Protection System 069
4.6Switchgear PassiveWireless Temperature Monitoring System 071
4.7Switchgear Fluorescent Fiber-Optic Temperature Monitoring System 073
4.8Switchgear IR Temperature Monitoring System 075
4.9 Earth Fault Feeder Selection Device 077
4.10 Microcomputer-Based Anti-Maloperation Interlock System 079

5. Generator Intelligent Integrated Online Condition Monitoring System

5.1Generator Intelligent Integrated Online Condition Monitoring System 081
5.2 Generator PD Online Condition Monitoring System 083
5.3 Isolated Phase Busbar Temperature Monitoring System 085
5.4 Wind Turbine Generator Intelgent Integrated Online Condition Monitoring System 087

6.Power Cable Intelligent Integrated Online Condition Monitoring System

6.1Power Cable Intelligent Integrated Online Condition Monitoring System 089
6.2 Power Cable Online Condition Monitoring& Fault Location System 091
6.3Power Cable Sheath Grounding Current Online Condition Monitoring System 093
6.4 Power Cable PD Online Condition Monitoring System 095
6.5Power Cable Distributed Fiber-Optic Temperature Monitoring System 097
6.6 Cable Tunnel Inteligent Integrated Online Condition Monitoring System 099

7.SubstationIntelligent IntegratedAuxiliaryMonitoring&Control System

7.1Substation Intelligent Integrated Auxiliary Equipment Monitoring& Control System 103
7.2Rail-mounted Inspection Robot 105
7.3 Wheeled Inspection Robot 107
7.4 Digital Remote Meter 109

B. Testing Instruments& Tools

8.1Portable PD Detector 111
8.2 SF6 Gas Recovery Unit 113
8.3SF6 Gas Moisture Analyzer 115
8.4 SF6 GasLeak Detector 117
8.5 Gas Chromatograph 119
8.6 Transformer Winding Resistance Tester 121
8.7Handheld IR Thermal Imager 123

1.1 Smart Integrated Station Monitoring & Control Platforn

1.2 Smart Station Topology Diagram

Smart StationManagement&ControlPlatform

SmartStationManagement&ControlSystem Data Acquisition Data Processing Operation Monitoring Operation Control Mermissint Video Inspection TimeMaynchronization Monfigration Data Storage Report Management Intelligent Linkage

Primary Equipment On-line Monitoring Device

Digital Meters nline foitoign GIS Online Monitoring Swiconear online Line Fault Monitoring Entation Intliogional)
Digital SF6 Density Gauge ElelinieM onitlaign DensityGnlMeiontcing PD Online Monitoring Onlinreadtge WindTiurbieGererar Leial Surearester DGA Online Monitoring PD Online Monitoring onliarMtrtai Onliwe Catrig PrevPVPlant al aing Dita Trnstorer PD Online Monitoring Surge Arrester Arc Flash Protection Cable DistributedFiber-Optic DilTragsarner AOniei Mrcohise To G
Digital Buchholz Gas Relay VisibleVideo Online Monitoring Core&ClampGround Online Monitoring Temperature Monitoring Digital Instrument Current Online Monitoring Buslar Defomain IR Temperature Monitoring Cable PD Online Monitoring Transformer Bushing PD Online Monitoring Oil Pressure Gauge Bushing Dielectric Loss(tan δ) Online Monitoring WindingFiber-Optic Temperature Monitoring System WindingFiber-Optic Temperature Monitoring System Neutral-point DCCurrent OnlineMonitoring
Intelligent Inspection Equipment Auxiliary Equipment
Visual Inspection Inspection Robot (Preferred) (Preferred) Drone Environmental Monitoring Monitoring System Fire Alarm Monitoring Security Lock Control Intelligent Optional Wireless Sensors
P UAV 三 Fr a PetreBarier Inteisetot Iielgete Wieles eses WiresSEAIN
Panoramic Camera Ai Conltioing Audibe& isa DRTenDoi Ventilation Fan Fire Alarm Active Infrared Control Control Panel Beam Detector Meteorological Monitoring Lighting Control

2.1 Transformer Intelligent Integrated Online Condition Monitoring System

1. Product Overview

The system is an integrated online condition monitoring and diagnostic solution for power transformers.It tracks operating parameters and equipment status in real time,enabling condition assessment,early warning,and risk analysis to enhance the intelligent operation of transformers.

The system incorporates multiple sensing technologies,including dissolved gas analysis (DGA)，partial discharge (PD)，ground current,vibration，and temperature monitoring.It also supports expandable monitoring modules for high-frequency PD,ultra-high-frequency PD,and infrared thermal imaging.

Through comprehensive multi-parameter analysis,the system provides holistic condition evaluation,proactive early warning and intelligent operation \& maintenance,and provides reliable data support for on-site operation and maintenance personnel.

2.Model Explanation

3.Features & Benefits

1.IntelligentMulti-ConditionDiagnosis& Early Warning forTransformers Customized optimal solutions are available to meet the specific requirements of different projects.

2.High-Precision Sampling with Intelligent Processing Algorithms

The system uses high-resolution,high-accuracy sampling to achieve time-synchronized collection of raw signals from allsensor modules.Processed via intelligent algorithms,the data supports precise multi-dimensional analysis of transformer insulation health status.

3.Prolong Equipment ServiceLife&Improve Power Supply Safety and Reliability

Through real-time monitoring of transformer operating parameters,the system can spot abnormalities promptly,identify and resolve potential faults inadvance.It mitigates safety hazards including overload and short circuits,extends transformer service life,and improves overall operational safety and stability.

2.2TransformerInsulation Online Condition Monitoring System

1. Product Overview

This system integrates three core transformer monitoring modules:dissolved gas analysis (DGA),bushing insulation monitoring,and core condition monitoring.Designed for power plants,substations and all high-voltage transformer O&M scenarios,it enables full-dimensional, round-the-clock online management of equipment insulation status.

Using high-precision sensing technology and intelligent data analysis algorithms,its DGA moduleaccurately detects fault characteristic gases in insulatingoil via oil-gas separation and chromatographic separation.The bushing module captures key parameters including leakage current and dielectric loss,and the core module monitors changes in grounding current. Synchronous data collection,analysis,diagnosis and early warning are integrated within one integrated system.

The system identifies latent faults such as insulation degradation and multi-point grounding in real time and sends precise early warning alerts.It supports condition-based maintenance, prevents unplanned power outages，guarantees safe and stable transformer operation，and accelerates the transition to intelligent grid operation and maintenance.

3.Features&Benefits

1.Integrated Design for Unified Control of Three Core Monitoring Modules

No separate device deployment is needed,which greatly cuts O&M costs and installation complexity.Theunit fits transformersof all voltage classes.

2. Outstanding Monitoring Accuracy

Digital filtering,dynamic phasor compensation and other advanced technologies are used to suppress electromagnetic interference effectively.Measurement errors of parameters including dissolved gas analysis and grounding current stay at industry-leading levels.

3.High-Efficiency IntelligentDiagnosis

Its built-in fault diagnosis engine incorporates trend analysis of multi-source data.It delivers early warnings for hidden hazards such as insulation degradation and local overheating,and enables precise fault location and pre-judgment.

4.Convenient and Efficient Operation&Maintenance

The system supports real-time data upload,remote monitoringand historical data traceability.Fully compliant with DL/T860 power grid standard, it seamlessly integrates into existing O&M management platforms and streamlines overall management workflows.

2.3TransformerDGA Online Condition Monitoring System

1. Product Overview

This intelligent monitoring system is specially developed for transformer insulating oil condition control.Compatible with transformers of all voltage classes in power plantsand substations,it delivers full-cycle,uninterrupted online monitoring of insulating oil degradation status.

Leveraging spectral analysis technology,the product accurately captures the absorption characteristics of insulating oil in specific spectral bands and detects key oil indicators in real time.Through intelligent algorithms,it synchronously executes data collection，analysis, diagnosis and early warning,and precisely identifies latent hazards including oil aging,moisture ingress and contamination.

The system sends tiered early warning alerts to support condition-based maintenance.It avoids equipment faults triggered by oil degradation,guarantees long-term stable transformer operation,and drives the intelligent upgrade of power grid operation and maintenance.

SUN -IGuard600：Transformer DGA Online Monitoring System 602：Transformer OilMicro-WaterOnlineMonitoringSystem 720:Transformer OilAcetylene Online Monitoring System 622：Transformer DGA Online Monitoring System (Limited Components) Intelligent Product BrandCode:RsafeleElectric

3.Features&Benefits

1.High-precision Spectroscopic Detection

Equipped with high-resolution spectroscopic sensors and baseline correction technology, the device effectively suppresses interference from impurities in oil.It delivers minimal measurement errors for core indicators,featuring detection accuracy up to industry-leading benchmarks.

2.Real-time Online Condition Monitoring

Manual sampling and lab testing are unnecessary. The system acquires data with second-level response and finishes index analysis within minutes,supporting dynamic tracking of insulating oil status and eliminating the inherent delay of conventional offline testing.

3.Accurate Intelligent Diagnosis

Its built-inoil degradation trend analysis models automatically categorize oil abnormalities and forecast degradation trends,offering scientific,precise data backing for O&Mdecision-making.

4.Convenient&Efficient O&M

It supports real-time data upload,remote monitoring & control,and historical data traceability. Fully compliant with DL/T860 power grid standard, the system seamlessly integrates into existing O&Mmanagement platforms and streamlines overall management workflows.

2.4 Transformer Oil Spectrum Analysis Online Condition Monitoring System

1. Product Overview

This intelligent monitoring system is specially developed for transformer insulating oil condition control.Compatible with transformers of all voltage classes in power plants and substations,itdelivers full-cycle,uninterrupted online monitoring of insulating oil degradation status.

Leveraging spectral analysis technology,the product accurately captures the absorption characteristics of insulating oil in specific spectral bands and detects key oil indicators in real time.Through intelligent algorithms,it synchronously executes data collection,analysis, diagnosis and early warning,and precisely identifies latent hazards including oil aging,moisture ingress and contamination.

SUN - IGuard - 605 Transformer Oil Spectrum Analysis Online Condition Monitoring System IntelligentProduct Brand Code:Rsafele Electric

3.Features&Benefits

1.High-precision Spectroscopic Detection

Equipped with high-resolution spectroscopic sensors and baseline correction technology,the device effectively suppresses interference from impurities in oil.It delivers minimal measurement errors for core indicators,featuring detection accuracy up to industry-leading benchmarks.

2. Real-time Online Condition Monitoring

3.Accurate Intelligent Diagnosis

Its built-inoil degradation trend analysis models automatically categorize oil abnormalities and forecast degradation trends,offering scientific,precise data backing for O&M decision-making.

4.Convenient&Efficient O&M

It supports real-time data upload,remote monitoring & control,and historical data traceability. Fully compliant with { D L / T ~ } 8 6 0 power grid standard,the system seamlessly integrates into existing O&M management platforms and streamlines overall management workflows.

2.5TransformerPD Online Condition Monitoring System

1. Product Overview

This system is dedicated to transformer insulation condition monitoring.It employs ultrahigh frequency(UHF) sensor technology to capture internal partial discharge (PD) signals in real time.Equipped with background data analysis software and an inteligent diagnosis system,it processes PD signals to evaluate transformer insulation status,classify defect types,pinpoint approximate defect locations,and output maintenance suggestions.

The system comprises sensors,demodulation/signal processing units,PD Intelligent Electronic Devices (IEDs),and a system server.Multiple PD IEDs can form a distributed monitoring system to enable simultaneous online monitoring of multiple transformers.

Built-in UHF sensors are installed inside power transformers to pick up UHF electromagnetic wave signals induced by internal partial discharge activities.

For in-service transformers,oil valve-mounted UHF sensors are recommended.Mounted on the oil drain valve of the transformer tank wall,they impose no disruption to regular transformer operation.

For transformers deployed in newly constructed substations,built-in UHF sensors are the preferred option.Such sensors are fitted onto the tank inner wall,and pre-reserved mounting ports on the transformer tank are mandatory for installation.

The system is suitable for online monitoring and early warning of transformer equipment in substations of all scales.

3.Features&Benefits

1.Compact and Well-Designed Structure

The sensor uses a compact,rational structural design. Installation will not modify the internal structure of power transformers nor disrupt their normal operating conditions.

2.Superior Anti-Interference Capability

Equipped with advanced anti-interference signal technology,the system utilizes multiple noise suppression algorithms including pulse identification and characteristic spectrogram analysis to filter diverse interferences and greatly boost the signal-to-noise ratio (SNR).

3.Back-End Analysis System

It records the timestamp and characteristic parameters of every discharge,generating 2D patterns (elliptical diagram,Q- \boldsymbol { \Phi } ，N-φ)and 3D patterns (PRPS,PRPD). The system also outputs analytical reports covering partial discharge trend analysis and fault pattern identification.

4.Economic and Safety Advantages

It cuts unnecessary power-off testing and reduces overall O&M expenditure,meanwhile mitigating high-voltage electric shock risks arising from manual patrol inspections.

2.6 Transformer Acoustic & Vibration Online Condition Monitoring System

1. Product Overview

This intelligent high-end system is developed to fulfill real-time mechanical health monitoring requirements for power transformers via integrated multidisciplinary technologies.It is applicable to all oil-immersed and dry-type power transformers with voltage classes ranging from 1 0 { k V } to 1 0 0 0 { k V } .

By deeply integrating high-precision vibrationsensing technology, high-sensitivity acoustic signature acquisition technology and advanced AI algorithms,the device captures fulldimensional vibration signals —including magnetostrictive vibration of transformer cores and electromagnetic force vibration of windings —in real time.It also accurately acquires full-band acoustic signature data during normal operation and abnormal fault states.

Byanalyzing core signal characteristics and key indicators,the system enables early identification and trend prediction of mechanical faults such as core looseness and winding deformation.Widely applied in power generation,transmission,distribution,rail transit and highenergy-consuming industrial sectors,the equipment forms an intelligent monitoring barrier to guarantee safe and stable transformer operation,and substantially upgrades the technical level and management effciency of condition-based maintenance for power equipment assets.

3.Features&Benefits

1.Using multi-sensor fusion technology,the system synchronously acquires vibration and acoustic signature signals to accurately perceive mechanical operating conditions. 2.It inteligently extracts key characteristic indicators and delivers intuitive visualization of equipment health status. 3.Equipped with built-in edge computing,the system generates graded early warnings for mechanical faults and improves the timeliness and accuracy of fault identification. 4.The visualized back-end interface presents data in an intuitive manner,enabling operators to rapidly grasp equipment operating conditions. 5.It supports complete data storage and traceability for fast fault localization,which shortens troubleshooting and repair time. 6.Supporting dual communication modes of 4G and optical fiber as well as cloud analysis,the system enables remote data transmission and sharing.Alarms and push notifications willbe triggered once anomalies occur to strengthen risk alerts.

2.7 Transformer Dual-Spectrum IR & Visible Video Online Condition Monitoring System

1. Product Overview

This system provides a professional condition monitoring and fault diagnosis solution for transformers and other core power equipment,engineered to tackle the detection of hidden hazards including overheating and insulation degradation arising from long-term operation. It makes up for the shortcomings of routine manual inspections and periodic tests,accelerates the shift of power equipment O&M from reactive breakdown repair to proactive predictive maintenance,curtails unplanned outages,boosts equipment operational safety and costeffectiveness,and safeguards stable power grid operation.

Integrating infrared thermal imaging，visible light imaging technologies and advanced inteligent algorithms,the system uses a non-contact monitoring mode to provide round-the-clock real-time monitoring. It precisely captures subtle temperature discrepancies and abnormal hotspots on equipment and performs data analysis through intelligent algorithms,enabling rapid identification of latent transformer faults and breaking the constraints of traditional monitoring approaches.

Suitable for extensive scenarios such as substations and power plants,the system offers dedicated monitoring and diagnosis services for transformers and other critical power assets, satisfies the demands of high-efficiency grid O&M,and empowers refined and intelligent operation & maintenance of power equipment in all power application sites.

3.Features&Benefits

1.Dual-spectrum Fusion for Precise Monitoring

Integrated with infrared thermal imagingand high-definition visible light modules,the system achieves a temperature measurement accuracy of ± 0 . 1 ^ { \circ } { C } .Dual-spectrum fusion enables dual visualization of temperature and equipment profile, eliminating monitoring blind zones.

2.IntelligentEarlyWarning forPreemptiveProtection

It supports multi-mode alarms for overheating,abrupt temperature shift and other abnormal conditions.Real-time push of alert messages and fault-location screenshots alows fast disposal of potential hazards.

3.24/7Monitoring with Strong Environmental Adaptability

Featuring an ingress protection rating of IP65 and above,the unit operates reliably within a wide temperature range of - 4 0 ^ { \circ } { C } to + 8 5 ^ { \circ } { C } It sustains uninterrupted monitoring under severe weather without manual operation.

4.Data-DrivenEfficient O&M

The system supports remote supervision，historical data traceability and automatic report generation.It builds full equipment health archives to advance digital O&M management.

2.8Transformer Dual-Spectrum IR & Visible Video Online Condition Monitoring System

1. Product Overview

This system is engineered for real-time detection of leakage current on the grounding leads of transformer cores or clamps,which prevents failures including circulating current-induced overheating,insulation degradation and equipment burnout triggered by multi-point grounding.

Equipped with high-precision zero-flux or through-core current sensors,the system noninvasively captures current signals spanning microamps to amperes and generates early warnings for abnormal operating conditions through intelligent algorithm analysis.It guarantees secure transformer operation,prolongs equipment service life,replaces manual patrol inspections, enables condition-based maintenance and conforms to applicable power industry standards.

The system is composed of high-sensitivity current sensors,data acquisition & processing units,communication modules (compatible with RS485,4G,IEC 61850,etc.),optional local display and alarm units,and host computer monitoring software.Featuring robust antiinterference performance and long-term operational stability,the unit applies to all substations rated 1 1 0 \ { k V } and above,acting as vital technical hardware for smart grid development and transformer predictive maintenance.

3.Features&Benefits

1.High-Precision,Wide-Range Measurement

Equipped with high-sensitivity zero-flux or through-core sensors,the unit precisely measures grounding current spanning microamps to several amperes to satisfy the demands of early fault identification.

2.Powerful Anti-Interference Performance

Custom-designed for the complex electromagnetic environments inside substations,it features outstanding EMC performance and specialized shielding structures to ensure steady,credible data output.

3.Real-Time Online Monitoring& Intelligent Early Warning

The system runs 24/7 uninterrupted monitoring and supports multi-threshold alarms plus trend analysis,allowing early discovery and rapid resolution of latent equipment faults.

4.Flexible Communication& System Integration

Supporting various communication protocols such as RS485,CAN,4G/5G and IEC 61850,it enables seamless access to substation automation systems or cloud platforms.

5.High Reliability&Maintenance-Free Design

Designed with passive sensors and non-contact mounting，its sturdy mechanical structure withstands harsh operating conditions including extreme temperatures and high humidity.No regular calibration is needed for long-term operation, with extremely low maintenance overhead.

2.9 Transformer Bushing PD Online Condition Monitoring System

1. Product Overview

This system is an intelligent monitoring device used to evaluate the insulation condition of high-voltage bushings in real time.It uses High-Frequency Current Transformer (HFCT) or Ultra-High Frequency (UHF） sensors to non-invasively collect partial discharge signals generated by internal defects of bushings such as air voids,moisture ingress and cracks. Combined with high-speed data acquisition and inteligent algorithms,the system can accurately analyze the amplitude,phase and frequency of discharge signals.

The system is mainly composed of sensor units,local acquisition devices,data processing hosts,communication modules and host computer software.It features functions including 24/7 uninterrupted monitoring，multi-level early warning,historical data traceability and remote access.Capable of detecting hidden risks of insulation degradation at an early stage,the system can effectively avoid sudden equipment failures,support condition-based maintenance and raise the intelligent operation and maintenance level of substations.It is applicable to online monitoring of transformer bushings with voltage classes of 1 1 0 0 ~ { k V } and above,and complies with relevant technical standards of the power industry.

3.Features&Benefits

1.Wide Frequency Response &High Sampling Precision The signal detection bandwidth covers 1 { - } 1 0 0 { M H z } ,with a sampling rate of over 1 0 0 { M S / s } , ensuring complete restoration of fine details of partial discharge pulse waveforms.
2.Superior Long-Term Operational Stability Key components use industrial wide-temperature materials to adapt to outdoor environments ranging from { \bf - } 4 0 ^ { \circ } { C } to + 7 0 { } ^ { \circ } { C } ,with an MTBF(Mean Time Between Failures) exceeding 50,0oo hours.
3.Low Power Consumption&High Safety Design Isolated power supply and optical fiber communication are used to achieve full isolation between strong current and weak current,safeguarding the monitoring system itself and primary equipment.
4.Multi-Channel Synchronous Monitoring Supported A single host can be expanded to connect 3\~6 phases of bushing sensors,enabling synchronous collection and comparative analysis of three-phase data to improve the accuracy offault localization.

2.10 Transformer Bushing Dielectric Loss (tan δ) Online Condition Monitoring System

1. Product Overview

This system is an intelligent device for real-time insulation condition assessment of highvoltage bushings.It collects leakage current from bushing test taps and reference voltage signals via high-precision sensors.Using the digital phase comparison method and FFT algorithm,it accurately calculates the dielectric disipation factor (tan δ) and capacitance (C),enabling early identification of insulation defects such as moisture ingress and aging.

The system delivers 24/7 continuous monitoring,multi-level early warnings,robust antiinterference capability and long-term data storage.It supports communication protocols including IEC61850 and is applicable to substationswith voltage classes of 1 1 0 { k V } and above.

The system comprises local acquisition units,voltage sampling units,central processing & communication units,monitoring software and auxiliary components.It can monitor multiple bushings simultaneously,facilitating the transition of O&M from periodic overhaul to conditionbased maintenance,and greatly enhancing transformer operational safety and intelligent management capacity.

3.Features & Benefits

1.Absolute Phase Angle Measurement

It directly measures the fundamental phase difference between current and voltage,delivering accurate results independent of reference equipment.

2.Wide-Range Linear Sensing

The sensor features a wide dynamic range and excellent linearity,enabling high-fidelity collection of full-scale current signals ranging from weak to strong.

3.Intelligent Anti-Interference Processing

Equipped with built-in adaptive filtering and temperature-frequency compensation algorithms,the system effectively suppresses field interference to guarantee authentic and stable measurement data.

4.Multi-Parameter Fusion Diagnosis

It synchronously analyzes multi-dimensional data such as dielectric loss,capacitance,total current and harmonics,carries out cross-verification,and precisely distinguishes various fault types.

5.High-Reliability Industrial Design

The field unit comes with low power consumption,wide temperature adaptability and high IP protection rating.Key components use redundant isolation structure to ensure long-term maintenancefree operation.

2.11 Transformer Winding Fiber-Optic Temperature Monitoring System

1. Product Overview

This system is a high-precision online monitoring device for direct,real-time measurement of hot-spot temperature inside transformer windings.

Using fluorescence decay, Fiber Bragg Grating (FBG),or gallium arsenide temperature measurement technology，the system embeds passive optical fiber sensors with excellent insulation performance at key winding positions.It precisely senses temperature via optical signals and is fully immune to interference from strong electromagnetic fields and transformer oil environments.

The system truly reflects the temperature rise at winding hotspots,effectively eliminating the time lag and measurement errors inherent to traditional indirect estimation relying on top-oil temperature.It significantly improves early warning performance against risks including overheating and insulation aging.

Itscore functions cover preventing winding thermal damage,supporting dynamic capacity expansion,optimizing condition-based maintenance strategies,and complying with the technical requirements of smart substations for primary equipment condition sensing.

The system comprises fiber-optic temperature sensors,temperature measurement hosts (demodulators),dedicated optical transmission cables,optional local display \& alarm units,and host computer monitoring software.Featuring high reliability,superior insulation and long-term operational stability,itis widely applied to oil-immersed power transformers of 1 1 0 \ { k V } and above,acting as an essential intelligent solution to secure the safe operation of grid primary equipment.

SUN- IGuard612:TransformerWindingFiber-Optic Temperature Monitoring System (Fluorescence Decay Type) 603:Transformer Winding Fiber-Optic Temperature Monitoring System(Gallium Arsenide Type) Intelligent Product BrandCode:RsafeleElectric

3.Features&Benefits

1.Direct and Precise Temperature Measurement

Sensors are embedded directly at winding hot-spot positions to reflect actual temperatures in real time,with measurement accuracy of ± 0 . 5 ^ { \circ } { C } —far superior to indirect calculation methods.

2.Complete Immunity to Electromagnetic Interference

Using all-fiber passive sensing technology,the system is immune to strong electric and magnetic fields as well as lightning surges,and fits high-voltage sites with intensive electromagnetic environments.

3.High Insulation& Intrinsic Safety

The sensors contain no metal parts and operate without power supply.They deliver high voltage withstand capability and excellent compatibility with transformer oil, guaranteeing stable and safe longterm operation.

4.Multi-Channel Real-Time Monitoring

It supports 8 to 24 or more temperature measurement channels to simultaneously monitor hot-spot temperatures of high-voltage windings,low-voltage windings and different winding layers.

5.Intelligent Integration& Remote Management

Supporting communication protocols including IEC 61850 and Modbus,the system can be seamlessly integrated into substation monitoring systems to enable remote data access,overtemperature alarmingand historical trend analysis.

2.12 Transformer OLTC Online Condition Monitoring System

1. Product Overview

Thissystem is an intelligent online diagnostic device designed for condition monitoring of On-Load Tap Changers (OLTC),aimed at preventing unplanned transformer outages caused by mechanical or electrical faults.

The system collects key parameters in real time during tap switching,including dynamic current waveforms,contact transition time,three-phase synchronization,mechanical vibration, oil temperature,and operation counts.Combined with multi-dimensional electrical,mechanical, and acoustic sensing technology, it accurately identifies typical defects such as contact erosion, abnormal transition resistance, mechanism jamming,and aging.

Its core diagnostic logic covers analyzing switching characteristics via high-precision current sensing and diagnosing mechanical faults through vibration signal spectrum analysis. Health evaluation and service life prediction are performed in compliance with industry standards.

The system consists of field sensors (current, vibration,temperature),local acquisition units, communication modules,and a remote monitoring platform.It supports high-speed waveform recording,edge computing,and multi-protocol data uploading.Equipped with remote alarm notification,historical waveform playback,equipment health scoring,and mobile push alerts,it can be seamlessly integrated into substation auxiliary control systems or master station management platforms.

This system significantly improves the proactivity and reliability of OLTC operation and maintenance.Suitable for substations rated at 1 1 0 \ { k V } andabove,it provides vital technical support for roling out transformer condition-based maintenance and advancing smart grid construction.

3.Features&Benefits

1.Multi-Parameter Synchronous Monitoring for Comprehensive Awareness

It synchronously collects multi-dimensional data including mechanical characteristics,electrical parameters,and environmental conditions,covering the full lifecycle of tap changer operation without blind monitoring zones.It delivers high data acquisition precision and fast response speed.

2.IntelligentDiagnosis& Early Warning forAccurateRisk Prevention

Built-in fault diagnosis algorithms identify latent hazards such as contact ablation,mechanical sticking,and insulation degradation.Multi-level alarm thresholds are configurable,and real-time alerts are issued through multiple channels including audible/visual alarms，SMS,and platform push notifications to eliminate fault risks in advance.

3.High Anti-Interference Design for Stable & Reliable Performance

It features robust electromagnetic interference resistance,high IP protection grade and wide temperature adaptability. Its operating temperature ranges from - 4 0 ~ ^ { \circ } { C } to + 8 5 ~ ^ { \circ } { C } ,suitable for complex application scenarios such as outdoor substations and severe industrial environments.

4.Traceable Data Analysis for Efficient Operation&Maintenance

It supports remote access,historical data retrieval,trend curve analysis and fault tracing,and automatically generates equipment operation reports.It provides solid data foundation for conditionbased maintenance and remaining service life assessment to cut down O&M expenses.

2.13 Transformer Neutral-point DC Current Online Condition Monitoring System

1. Product Overview

This system is an intelligent monitoring device specially developed to protect main transformers against hazards arising from geomagnetically induced currents (GIC),as well as underground stray DC currents generated by rail transit,HVDC transmission and other facilities.

Fitted with high-precision DC current sensors,the system captures DC components passing through the transformer neutral grounding circuit in real time (typical measuring range: ± 1 0 0 { A } milliampere-level resolution).It accurately evaluates DC bias risks and avoids problems such as vibration,audible noise,additional losses and local overheating triggered by core saturation.

Its measurement principle relies on zero-flux or Hall-effect technology.Paired with digital filtering and calibration algorithms,it effciently suppresses AC interference to maintain excellent measurement precision.

The system comprises high-stability DC sensors,local monitoring terminals,communication modules and a remote monitoring platform.It supports mainstream standard protocols including IEC 6185O and Modbus,and features multi-level threshold alarms,historical trend analysis, event waveform recording and self-diagnosis functions.

Suitable for high-risk scenarios such as geomagnetically active regions,substations adjacent to metro lines and zones around HVDC converter stations,the system can be seamlessly incorporated into substation automation systems to deliver centralized supervision and intelligent early warning，significantly enhancing the anti-interference performance and operational reliability of power grid primary equipment.

SUN - IGuard - 210 Transformer Neutral-pointDC Current Online Condition Monitoring System IntelligentProduct Brand Code:Rsafele Electric

3.Features&Benefits

1.Milliampere-Level Resolution& Wide Dynamic Range

Using zero-flux closed-loop technology, it covers a measuring range of ± 1 0 0 { ~ A ~ } or above with resolution better than 1 0 \ { m A } ，fulfilling full-scenario monitoring demands for faint geomagnetically induced currents (GIC) and intense stray currents.

2.SuperiorTemperatureStability&Long-TermReliability

The sensor features an ultra-low temperature drift coefficient ( { < } 0 . 0 1 % / { } ^ { \circ } { C } ) ,and core components have a service life exceeding 1O years, guaranteeing stable long-term operation under extreme outdoor climatic conditions.

3.Non-Contact/Split-Core Mounting Design

It supports live-line installation without cable disconnection,significantly reducing construction complexity and power outage costs —perfectly suited for retrofit projects of in-service substations.

4.Superior Electromagnetic Compatibility

Fully certified to comply with the IEC 610o0-4 EMC series standards,it retains precise signal measurement and stable communication performance even within high-intensity electromagnetic fields at 5 0 0 { k V } and above.

2.14 Transformer Neutral-point DC Current Online Condition Monitoring System

1. Product Overview

This device is an intelligent cooling control system tailored for oil-immersed power transformers.Itcollects winding temperature and top-oil temperature in real time and stages the startup/shutdown of cooling fans (and oil pumps),effectively avoiding insulation degradation and equipment faults triggered by transformer overheating.

The system uses a multi-stage operating logic of "Working／Auxiliary／Standby"and provides three control modes: manual,automatic,and remote,to fit various O&M scenarios.

Its core control unit processes signals from PT1Oo and other temperature sensors through a PLC or dedicated temperature controller.It drives contactors to actuate fans based on preset temperature thresholds,while built-in intelligent motor protectors conduct real-time monitoring and circuit tripping for faults including overload, phase loss,and locked rotor.

The control cabinet integrates HMI,fault alarm output,operation logging and data communication interfaces.Compatible with Modbus,IEC 61850 and other standard protocols,it can be seamlessly connected to substation automation systems.

Designed with a fully modular layout,the unit reachesan IP54 or above ingress protection rating.It comes with intelligent functions such as fan rotation scheduling,redundant switching and cumulative runtime statistics,which significantly boost cooling system reliability and prolong transformer service life.The product is extensivelyapplied in 1 1 0 ~ { k V } andhigher-grade substationsand large industrial sites.

TransformerForced Air CoolingIntelligent Control Cabinet

BrandCode:RsafeleElectric

3.Features & Benefits

1.High Integration for Space& Cost Savings

It integrates forced air cooling control and main transformer terminal box functions into a single unit, cuting the number ofcabinets and cable laying Workload,lowering civil construction and installation expenses,and fitting substations with restricted space.

2.Industrial-Grade Components

Core control modules,relays,and terminals employ industrial-grade components with wide temperature range ( { \bf - 4 0 ^ { \circ } C } to + 8 5 ^ { \circ } { C } )and long service life.Its MTBF(Mean Time Between Failures) exceeds 100,000 hours.

3.Dual Redundant Power Supply

It provides automatic switchover between two independent AC/DC power supply loops, guaranteeing uninterrupted operation of the control system during auxiliary power anomalies and upgradingpower supply stability.

4.Full-CircuitSelf-Check&FaultLocalization

It provides fan circuit continuity detection,sensor open-circuit recognition and terminal signal channel self-diagnosis,supporting accurate fault pinpointing and shortening maintenance downtime.

5.Tool-Free Maintenance & Front-Access Wiring

Equipped with front-opening door and front wiring layout, key modules use hot-swap or quick snapfit structures.Components can be replaced without dedicated tools,drastically boosting on-site O&M efficiency.

2.15 Transformer Intelligent Component Cabinet

1. Product Overview

This system is core equipment for smart substations.It performs on-site acquisition, processing and standardized transmission of main transformer body information,centrally connects all categories of non-electrical signals to enhance protection reliability,simplifies secondary circuits and elevates information sharing，and functions as key infrastructure supporting intelligent and digital O&Mof transformers.

In working principle,it uses optoelectronic isolation,signal conditioning and intelligent terminal units to implement debounce filtering,delay processing and logical discrimination for non-electrical signals.Processed data is transmitted over fiber-optic networks in specified message formats conforming to the IEC 6185O standard.The cabinet integrates various modules and systems; separated layout for strong and weak current circuits plus a stainless steel cabinet with IP54 ingress protection rating guarantee stable operation.

Commonly applied in smart substations,the system supports seamless integration with protection，measurement & control and background monitoring platforms.As a local convergence node for subsystems including forced air cooling control and DGA monitoring,it withstands severe outdoor operating conditions and satisfies the intelligent O&M demands of substations.

3.Features & Benefits

1.High Integration& Modular Design

Integrating multiple functional modules covering non-electrical protection,cooling control,on-load tap changing,oil temperature monitoring,and partial discharge detection,it uses a compact layout for convenient installation,maintenance and functional expansion.

2.Intelligent Monitoring&Diagnostics

It provides real-time online monitoring of transformer operating parameters including oil temperature,oil level, winding temperature and partial discharge,and supports early fault pre-warning and intelligent diagnosis to boost overall O&M effciency.

3.Standardized Communication& Remote Management

Supporting mainstream standard communication protocols such as IEC 61850,the unit can be seamlesly connected to substation automation systems to achieve remote monitoring,data uploading and remote operation,fully complying with construction demands of smart substations.

4.High Reliability& Superior EnvironmentalAdaptability

Constructed with industrial-grade components,it features outstanding EMC performance,IP54 or above ingress protection,and a wide operating temperature range of - 4 0 ~ ^ { \circ } { C } to + 7 0 ~ ^ { \circ } { C } ,capable of running steadily in all severe outdoor application scenarios.

5.SafetyProtection&RedundantArchitecture

Furnished with complete electrical isolation,overvoltage/overcurrent protection and dual redundant power supply design,it maintains safe and stable operation under abnormal working conditions and safeguards reliable performance of the entire main transformer system.

2.16 TransformerIntelligent Component Cabinet Brand Code: Rsafele Electric

1. Product Overview

This system is an integrated full-lifecycle condition monitoring solution for dry-type transformers.It resolves the pain points of traditional monitoring systems including fragmented data,delayed response and ineficient O&M.It delivers comprehensive multi-dimensional status monitoring for dry-type transformers,integrated with intelligent fan control,fault early warning and service life prediction functions.It provides comprehensive data support for lean equipment O&M and ensures stable power supply.

The system integrates high-precision sensing,embedded computing and multi-protocol communication technologies to achieve round-the-clock uninterrupted monitoring of electrical parameters,winding & core temperatures,partial discharge,ambient temperature and humidity, as well as power quality.It accurately captures all operational data of equipment to guarantee real-time performance and measurement precision.

This product is deployed in diverse application scenarios equipped with dry-type transformers,such as substations,industrial distribution rooms and power stations.It satisfies full-lifecycle monitoring demands of dry-type transformers under various operating conditions, supports lean and intelligent equipment O&M,and cuts down overall maintenance costs.

3.Features&Benefits

1.Multi-Dimensional Comprehensive Monitoring

It covers three core monitoring dimensions: transformer body temperature,partial discharge,and internal tank acoustic signals,while collecting electrical parameters,vibration data,ambient temperature and humidity to achieve ful perception of operating conditions and fault early warning.

2.High-Precision Anti-Interference Temperature Measurement

It uses fluorescent fiber optic temperature sensing technology with direct contact to measurement points.Capable of enduring 1 0 0 { k V } high voltage and intensive electromagnetic interference,it delivers measurement accuracy of ± 1 ^ { \circ } { C } and adapts to severe operating environments.

3.High-Sensitivity Partial Discharge Detection

Utilizing the HFCT high-frequency current approach, it achieves detection sensitivity down to 10 pC and covers a frequency band of 1 0 0 { k H z } to 1 0 0 { M H z } .The clamp-mounted installation has no impact on equipment operation and precisely captures partial discharge signals.

4.User-FriendlyHMI&Data Management

The local terminal collborates with host computer software,enabling real-time data browsing, historical trend plotting and alarm record retrieval.It supports flexible parameter configuration with a cleanand intuitive operation interface.

2.17Dry-type Transformer Online Condition Monitoring System

1. Product Overview

This device serves as an intelligent monitoring and control terminal for packaged substations.It integrates four core functions:protection，measurement,control and communication.It ensures safe and stable operation of packaged substations,improves O&M effciency and meets grid interconnection standards.It enables unattended operation and centralized management, shifting the O&M mode from passive troubleshooting to proactive condition-based maintenance.

By using high-precision data sampling,intelligent fault identification,remote control and network communication technologies,it provides ful-scope monitoring of electrical and nonelectrical parameters on both the high-voltage and low-voltage sides of packaged substations.It reacts rapidly to all fault types and triggers corresponding protection signals,and uploads operating data and fault records to the background monitoring platform.Its all-in-one integrated design greatly simplifies equipment configuration and reduces installation costs and capital investment.

This product applies to grid-connected 1 0 ~ { k V } ~ 3 5 ~ { k V } packaged substations installed in wind farms,photovoltaic power stations,energy storage power stations and traditional distribution networks.It can operate reliably under harsh industrial environments such as deserts, Gobi regions and mountainous areas,providing stable inteligent monitoring for new energy power generation and power distribution systems.

3.Features&Benefits

1.The device is equipped with a 32-bit high-performance processor for high-precision sampling. It acquires multi-channel ful electrical parameters and DC signals, with independent CTconfigurations dedicated to protection and measurement respectively.
2.It is integrated with comprehensive electrical and non-electrical protection functions,supports fault waveform recording and event logging,and achieves rapid, precise fault processing.
3.Fitted with an LCD screen in Chinese,it facilitates straightforward operation,commissioning and maintenance.Built-in self-diagnosis and parameter tuning functions deliver convenient intelligent operation.
4.It comes with diverse communication interfaces and broad protocol compatibility,supporting flexible networking schemes.Multiple mounting options are available to satisfy unattended operation scenarios.
5.Using industrial-grade anti-interference architecture,the product features robust wide-temperature adaptability,superior insulation and ingress protection,as wellas steadyand reliable long-term operation.

2.18 Packaged Substation Intelligent Integrated Environmental Monitoring & Control Device

1. Product Overview

This unit is an integrated environmental safety and temperature control terminal developed for packaged substations and electrical cabinets.Focused on systematic monitoring,regulation and early warning,it guarantees safe and stable equipment operation,mitigates hidden faults induced by abnormal ambient conditions and cuts O&M expenditure.

It features an al-in-one integrated design composed of three core modules:

Environmental management controller (main control module):undertakes data reception. logical judgment, command output,data storage and remote communication interface;

Sensing and monitoring modules for temperature,humidity,condensation and smoke detection (expandable to connect transformer oil temperature sensors to enable multi-point synchronous monitoring over the RS485 bus);

Actuator modules such as cooling fans and heaters,which perform forced air cooling and anti-condensation heating in response to control instructions.

Its Working logic follows a closed-loop cycle of "Sensing-Analysis-Control-Feedback" and runs fully automatic through the RS485 bus. Sensors capture key parameters including temperature,humidity,dew point and smoke concentration and transmit data to the controler. The controller evaluates operating status by comparing measured readings against preset thresholds.When anomalies occur, it activates corresponding actuators and outputs alarm signals to deliver all-round protection for steady equipment operation.

3.Features&Benefits

1.The unit provides real-time monitoring of multiple environmental parameters such as temperature, humidity,condensation,smokeand oil temperature for full visibilityof internal ambient conditions inside packaged substations.
2.It provides intelligent control over cooling fans and heaters to perform automatic temperature adjustment and anti-condensation management, guaranteeing stable equipment operation.
3.It delivers abnormal alarms for over-temperature,condensation and smoke,alongside fire early warning functions to boost the operational safety of packaged substations.
4.Fitted with standard communication interfaces and protocols,it can be seamlessly integrated into background platforms to support remote monitoring and centralized management.
5.Built with wide operating temperature and voltage ranges,the unit features outstanding environmental adaptability and simple installation,applicable toalltpes of packaged substationsand electrical cabinets.

3.1 GIS Intelligent Integrated Online Condition Monitoring System

1. Product Overview

This system leverages modern information technologies including IoT,multi-sensor fusion, big data and AI.It acquires multi-characteristic state parameters of running equipment,such as partial discharge, { S F } _ { 6 } gas temperature,moisture content, SF6 leakage and mechanical properties, to conduct comprehensive monitoring,fault diagnosis and analysis for both abrupt transient failures and slowly evolving latent faults within GIS switchgear.

It generates accurate maintenance schedules for equipment, facilitates full-lifecycle health management,and delivers cost reduction and efficiency improvement.

The system is mainly composed of various intelligent field sensors and an online monitoring &fault diagnosis analysis platform.It can also be expanded into a cloud-edge-end integrated application architecture.

3.Features&Benefits

1. Comprehensive Condition Monitoring

Real-time measurement of multi-dimensional indicators including SF gas，partial discharge, mechanical properties and conductor temperature for accurate evaluation of GIS equipment health status.

2.IntelligentEarlyWarning&Diagnosis

Embedded fault diagnosis algorithms automatically detect potential risks and generate advance alarms.The device enables condition-based maintenance and elevates overall O&M efficiency.

3.Flexible&ReliableConfiguration

The modular architecture supports wired and wireless data transmission.Fully compliant with power industry standards,it satisfies deployment demands for all GIS switchyards.

4.High-Reliability Design

Industrial-grade components are used for core sensors and communication modules.Equipped with wide operating temperature range,the unit withstands harsh environments and guarantees long-term continuous stable operation.

5.Seamless System Integration

Supporting standard protocols including IEC 61850 and Modbus,it achieves seamless interconnection with diverse master station systems to break down information silos.

3.2 GIS SF6 Gas Moisture & Density Online Condition Monitoring System

1. Product Overview

During long-term operation of GIS equipment, { { S F } } _ { 6 } gas may suffer elevated moisture levels or leakage,both of which impair insulating performance.When exposed to electric arcs, SF6 decomposes into multiple toxic and corrosive byproduct gases,posing serious risks to the safe and stable operation of GIS.

A large number of GIS malfunctions are caused by degraded insulation.Hence,online monitoring of trace moisture and density of { { S F } } _ { 6 } gas is essential.

The SUN-IGuard-401 Series { { S F } } _ { 6 } Gas Moisture & Density Online Condition Monitoring System suits 1 1 0 { k V } to 7 5 0 { k V } high-voltage switchgear and GIS installations.It acquires realtime humidity,density and temperature measurements,featuring local display,remote data transmission,alarm triggering and trend analysis.The system provides solid data foundations for condition-based maintenance and smart grid construction.