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12kV ET1
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We help our customers worldwide manage the power they need for buildings, aircraft, trucks, cars, machinery and entire businesses. And we do it in a way that consumes fewer resources.
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Eaton's range of SF6 free switchgear for Medium Voltage
Eaton Corporation is a worldwide leader in the design, manufacture, and sale of safe, reliable and high-performance medium voltage power distribution equipment in accordance with IEC, ANSI and GB / DL standards
Complete Global Medium Voltage Switchgear Solutions
Eaton, a premier leader in designing and manufacturing power distribution and protection equipment in the electrical industry, offers a comprehensive range of medium voltage (MV) solutions to meet the needs of virtually every application. From products that feature cutting-edge design that allow for easy access, maintenance and space savings, to arc-resistant products that enhance safety, Eaton's medium voltage solutions provide a variety of products for every need. Additionally, Eaton's global service network provides maximum customer support in all regions of the world.
As one of the few completely vertically integrated and diversified industrial manufacturers in the world, Eaton designs not only MV assemblies, but also the key components that comprise the MV solutions – from steel housing and circuit breaker compartments to vacuum interrupters, circuit breakers, bus systems and fuses.
Eaton's MV heritage, strengthened by acquisitions such as Westinghouse DCBU, Cutler Hammer, MEM and Holec, has resulted in breakthrough MV technologies and numerous international patents over the years.
Part of Eaton's complete electrical PowerChain Solutions – which help businesses minimize risks while realizing greater reliability, cost efficiencies, capital utilization and safety - Eaton's medium voltage equipment meets all applicable standards and certifications such as IEC, NEMA / ANSI, GB / DL, UL, IEEE, KEMA and CSA.
When it comes to medium voltage solutions, you can trust the one name with a long history of proven performance: Eaton.
12kV ET1
Removable AC Metal-enclosed Switchgear
Overview
12kV ET1 is the indoor metal-clad air insulated medium voltage switchgear. Benefit from Eaton's the new vacuum technology and the mature epoxy-resin insulation technology, it is approved comprehensively through type testing and qualification. The product is mainly applied in the power plants, transformer stations, mining enterprises and high-rise buildings with optimized safety, reliability, cost-effectiveness, and high performance. The 550mm width compact solution better suits the application in projects with restricted spaces such as the commercial real estate, data centers and retrofit
ET1-12 switchgear comprises a complete range from 1250A up to 4000 A current. The main busbar current can reach 4000A. Adopting the vacuum interrupting technology and the composite insulation technology, the switchgear is the best of its kind in the medium voltage field to replace the environmentally harmful SF6 gas insulation equipment.
It is also produced with fully recyclable materials ensuring that at the end of its life the product can be safely and efficiently recycled – providing a wholly sustainable solution to medium voltage switchgea applications.
Applications
• Infrastructure
• Data centers
• Commercial buildings
• Industries and corporations
• Airports and hospitals
High reliability
• Compact components and optimized electrical field structure guarantee the performance of the overall insulation system
• The epoxy encapsulated circuit breaker and completely insulated and enveloped busbar system enhance service reliability
• Up to 30,000 cycles long-life spring mechanism requires minimal maintenance
• The high-performance circuit breaker can accommodate up to 50 full-capacity circuit-breaking duty
• High-quality brand interrupters with a guaranteed life span of 30 years
Applied standards
• GB3906
• GB/T11022
• DL402
• DL404
· DL593
• IEC62271
Safety for equipment and person
• Metal-clad fully enclosed structure prevents invasion by pollutants and tiny living things.
• Operation only on completely closed-door condition protects the personal safety of operators.
• Reliable and comprehensive interlocking device effectively prevents against wrongful operation for enhanced safety
• The emergency opening device in the front door makes emergency tripping of VCB in closed-door state.
• The quick making earthing switch is used for grounding on the cable side to ensure safety during maintenance.
Easy operation and wide adaptability
• After opening the rear door of switchgear, the cables and current transformers can be installed
• Common electromagnetic transformer is used
• Cable connectors of various common specifications to be used
• Suitable for multiple cables connection of various common specifications (up to 6 cables per phase)
• Panel coupling is simplified in site: no special tools are required and system can be extended on both sides.
• Mimic diagram of primary circuit in front door and the components status are visible for users
• Maintenance may be accommodated for front or rear access.
Environmentally friendly and low energy consumption
• No SF6 gas is used for the circuit breaker and insulation (green and environmentally friendly)
• Powerful maintenance-free design with minimal parts
• Powerful maintenance-free design with minimal parts
• Highly efficient and energy-saving assembly process to reduce energy consumption during the manufacturing process
• Effective utilization of materials
• The advanced vacuum circuit breaker contact design helps prevent against the heating point to minimize electrode corrosion and to extend the product life
• The number of electrical contact or interconnection points inside the system is kept at a minimum for lowest energy consumption during operation.
• To discontinue use, no special or required processing procedure is needed.
Removable AC Metal-enclosed Switchgear
Basic design
ET1-12 has a modularized structure which consists of the front and the back modules. The module is riveted internally and is known for the outstanding switchgear strength and precision.
The interfaces available on both sides of the panel for conveniently expansion of the existing system.
1Low voltage busbar channel
On top of the panel there's an independent low voltage busbar access that may be opened separately to connect low voltage busbars of adjacent panels which line up.
2Pressure relief channel
For the three high voltage compartments on top of the panel, there are the respective pressure relief cover plates to help with the emissions of gases generated during internal arcing from above.
Superior safety, reliability and performance
3Low voltage compartment
4 Busbar compartment
The busbar compartments are separated from one another through grounded metal partition boards and bushings. There are separate pressure relief channels. The whole busbar system is fully insulated to guarantee the insulation level and to minimize the possibility of arc fault. The epoxy resin insulators with large creepage distance (≥240 mm) are used to support the busbar. The bushing is installed on the stainless-steel plate in order to reduce heat generated by the eddy currents from the busbar.
5Circuit breaker compartmer6 Shutters
The circuit-breaker compartment is made of grounded metal partition boards. On top of it is the separate pressure relief channel.
Inside the circuit-breaker compartment there are the installed aluminum alloy guide rail and the exclusive grounding conductor to ensure precise coordination between the circuit breaker truck and the primary contacts and reliable grounding during racking-in from the test to service position.
With the compartment door fully closed, the circuit breaker can be closed or opened via the manual button or the operation rod in front of the door.
The circuit breaker truck is mechanically interlocked with the door plate. Only when the circuit breaker is tripped and returns to the test position can the door be opened.
The earthed metal shutters on the busbar and cable sides can be separately operated. The shutters will automatically open or close as the truck moves in or out.
When the circuit breaker is in a test or disconnected position, the shutters close automatically to prevent against approaching or contacting with charged conductors.
When the circuit breaker truck is moved out of the switchgear, a padlock may be added with the shutter closed to ensure that the service personnel do not contact high voltage charged conductors.
7Current transformer
8Earthing switch
The earthing switch is installed inside the cable compartment in the center of the cabinet. Opening or closing is manipulated from the front side of the switchgear. The status of the earthing switch can be observed directly through the window, and may be displayed on the low voltage door.
There is a mechanical interlock between the earthing switch and the circuit breaker or the contactor truck. Only when the truck is in the test/disconnected position can the earthing switch be turned on or off.
There is also a mechanical interlock between the earthing switch and the cable compartment door to ensure that the cable compartment door can only be opened after the earthing switch is turned to off.
9Grounding conductor
Each switchgear is configured with a pass-through main earthing busbar. A rectangular copper bar with a suitable cross section is selected according to the short-circuit capacity of the system to ensure simple and effective grounding connection between switchgear and the grounding network at the substation.
The grounding conductors inside the switchgear are distributed inside the cabinet vertically and horizontally and are connected to the earthing switch and the main earthing busbar. The overall grounding system has been validated through the short circuit withstand test.
10Cable compartment
Inside the cable compartment it is possible to install the current transformer, earthing switch, and surge arrester. The cable compartment and the switchgear are designed to accommodate the various ways of incomer and feeder, such as bottom cable in/out, top cable in/out or top bus bar in/out.
The cables can be connected in parallel for at least 2 x 400 mm2 three-core cables at the same time. The terminal height of cable is not below 750 mm, which makes connection convenient.
Control, protection and operating interface
1Low voltage compartment door
All controls and displays are installed on the door to facilitate operation.
On the door, various types of meters and switches may be installed as required, such as:
• Circuit breaker closing/opening switch
• Circuit breaker status lamp
• Ammeter/Voltmeter and the phase selection switch
7 Circuit breaker status indicator and closing/opening switch
This local circuit breaker opening/closing switch can be used to manipulate the circuit breaker; the closing/opening state is shown on the door.
The optional LED indicates the "charged" state of the spring mechanism.
2Protection relay
Eaton brand protection relay may be used as the standard option; customers may also choose protection relays from other suppliers.
3Mimic diagram
There is a clear circuit mimic diagram on the door of each panel.
4 Ammeter and the phase selection switch
5Voltage Indicator
The optional three-phase voltage detection and indicator are available for each panel. This voltage indicator is driven by the capacitor voltage divider inside the insulator and is connected to the conductor on the cable side. Operators can see directly if the connected cable is charged.
6Truck position indicator
Shows that the circuit breaker truck is in the connected/service or test/disconnected position.
8 Earthing switch status indicator
Shows that the earthing switch is in the opened/closed state.
9 Viewing windows
The circuit breaker compartment door viewing window provides visual indication of the position of the circuit breaker indicating:
• The status of the breaker
• The status of the spring charged mechanism
The cable compartment door viewing window allows visual indication of:
• The status of the earthing switch
• Inspection of the cable connections
10 Circuit breaker propelling mechanism operation hole
Turn the knob and open the cover plate over the operation hole to insert the handle to racking in/out the truck.
Safety first design
Eaton applied its experiences and knowledge accumulated over the years in the resin insulation technology, vacuum technology, arc interruption and electrical field control technology to the design and development of products, and has accordingly ensured very high safety and reliability in operation throughout the life span of its equipment. The switchgear is known for the many reliable functional designs to guarantee continuity in power supply and also to protect the safety of operators.
Preventing against internal arc fault
The solid encapsulated monopolar structure of each phase and the fully insulated busbar system guarantee insulation and encapsulation of the overal loop high voltage conductors and keep them isolated from one another to avoid/minimize possible internal arc fault to the greatest extent possible.
Internal arc class:The greatest
underlying threat possibly facing operators is the generation of arc inside the switchgear. The metal-clad design of ET1 along with its robust structure enabled its three major compartments to successfully pass the internal arc fault test and meet the GB3906 requirements. The rated value of IAC can reach 40kA-1s.
According to the standard defined protection level of switchgear upon internal arc fault, the ET1 range's approval upon independent third-party testing proves that the lAC class it can offer is AFLR.
A = Protection for personnel (authorized personnel only)
F= Protection at the Front of the switchgear
L= Protection at the Lateral (sides) of the switchgear
R = Protection at the Rear of the switchgear
Accessibility of compartments
To guarantee the safety of personnel, access control is enforced for each charged compartment of the switchgear as required by standards:
• Busbar compartment: Tool-based/non-accessible
• Circuit breaker compartment: Interlock controlled
• Cable compartment: Tool-based or optional interlock control
Partition classification
ET1 employs only earthed metal partitions and therefore has the highest level of partition classification of PM.
ET1 switchgear is equipped with automatic earthed metal shutters. Individually operated shutters for both the Line (busbar) and Load (cable) connections can be padlocked in the closed position. When the vacuum circuit breaker is in the test or the disconnect positions, the shutters will automatically close to prevent accidental contact with any live parts.
For testing purposes, special shutter fixtures are used to maintain the shutters in the open position. Colour coded and labelled 'Busbar' and 'Cable', the shutters are easily identified as Open or Closed.
Basic protection against invasion by foreign matters
The standard external protection class of the switchgear design is IP4X. IP41 is an optional configuration. The internal protection class is IP2X. The partition design of the protection class prevents against invasion by foreign matters and reduces the risk of any accident as a result of contact with charged components.
Safety interlocks
For personnel safety ET1 is designed with a series of interlocks to prevent fundamentally against dangerous situations and wrongful operation that might give rise to serious consequences and accordingly protect the operators and the switchgear.
Basic interlocks
compartment door is closed can the circuit breaker be moved in or out. Only when the circuit breaker is in the testing/isolated position can the circuit breaker compartment door be opened.
• Only when the circuit breaker is in the opened state, the truck may move from the testing/isolated position to the working position.(mechanical interlock).
• Only when the truck is in a complete testing or working position can the circuit breaker be closed (mechanical interlock). When the truck is in the testing or working position but there is no controlled voltage, the circuit breaker cannot be closed; one can only open it manually (mechanical electrical interlock).
• When the truck is in the working position, the control line plug is locked and hence cannot be pulled out.
When the earthing switch is off, the truck cannot move from the testing/isolated position to the working position; when the truck is in the working position, the earthing switch cannot bē turned off(mechanical interlock).
• When and only when the earthing switch is off, the rear door of the cable compartment may be opened (mechanical interlock). When the rear door is not closed, it is impossible to turn on the earthing switch.
Additional interlocks
• The additional electrical or mechanical lock realizes interlocking between the busbar grounding and the upstream incoming line/downstream outgoing line.
• The additional interlock may be installed onto the truck and/or the earthing switch operation mechanism, such as the latching electromagnet.
• Once the truck moves away, the shutter may be locked with a padlock.
• The operation hole of the earthing switch may be locked by padlock.
• Additional electromagnetic lock may be installed to the door of the cable compartment of the switchgear.
Remote operation
In order to realize further safety requirements, the switchgear may be configured with complete remote operation features. The VCB truck and Earthing switch can be operated via motor no need to access the switch room.
Minimal maintenance and high reliability
Highest class of operational continuity
The class of loss of service continuity of ET1 is LSC2B.
The LSC2B class indicates that system operation can reach maximum continuity When the main switch device is being serviced, there is no need to interrupt corresponding cable connection or the main busbar. Therefore, in the LSC2B switchgear, there have to be at least three compartments to exercise different functions:
• 1 for the main switch device
• 1 for components connected to one side of the main switch device, such as the feeder loop
• 1 for components connected to the other side of the main switch device, such as the busbar
When the circuit breaker compartment is opened, the cable and the busbar are still in a charged state and the switchgear now can be classified as LSC2B.
Solid insulation combining resin pouring technology
Epoxy resin is a high-quality insulating material. With more than 50 years of experience in designing and manufacturing pouring resin parts, Eaton was able to design exclusive parts to help optimize distribution of the electrical field with a robust structure and sufficient heat sinking performance.
• High mechanical strength to enhance monopolar durability and mechanical life span
• Avoid impacts from climate conditions and humidity
• Reduce mechanical impacts and vibration
• High heat conductivity
• High resistivity and creepage distance for enhanced insulation and compact design
Reliable and maintenance-free vacuum switch technology
The reliability and advantages of vacuum switches in the medium voltage field are without a doubt. Eaton's vacuum switch technology has brought about advantageous circuit breakers and contactors for their high performance, long life span, and low energy consumption.
• No servicing is required during the up to 30-year life span of the vacuum interrupter.
• Long operating life span: The circuit breaker can work up to 30,000 times and contactors up to 1,000,000 times.
• Contactor wear is minimal, and mechanical adjustment is not required throughout the operation cycle.
Fully insulated and fully encapsulated busbar system
The main busbar penetrating through the whole switchgear is completely insulated and isolation between adjacent cabinets is guaranteed by the main busbar compartment. The long-term reliable insulation performance of the main busbar system is accordingly guaranteed. It also helps prevent against spreading between adjacent cabinets in case of failure.
Withdrawable truck design
Main primary components such as the voltage transformer, fuse and lightning arrestor can all be installed on the withdrawable truck to facilitate safe operation while the main busbar is charged and also maintenance.
Highly flexible application
Eaton understands the complexity and variability of actual application and the value of land, and offers various flexible design solutions in order to answer the needs of application to the maximum extent possible.
Adaptation to different climates and environments
• 3500m high-altitude
• Addition of a heater to prevent against condensing risk in a humid environment
• IP41/IP42 cover protection available
• Vibration and tilt test to satisfy special environmental needs
• Galvanized steel sheet or epoxy powder painted cover for enhanced protection against impacts from salty fog in coastal environments
Optional design solutions and configuration
• 7.2kV or 12kV fuse - vacuum contactor used to control and protect the load of the electric motor, capacitor or transformer
• VCB cable in/cable out solution for upstream incomer of transformer, with the top or bottom entry/out
• Option for standard or busbar casing current transformer
• Suitable for cable connectors of various common specifications
• Concurrent connection with multiple cables (up to 6 cables per phase)
• Top entry of primary/secondary cable
• Can accommodate access by cables or the busbar and also mixed access by cables and the busbar
• Fixed or withdraw-able installed voltage transformer
• Busduct between different bus sections or cabinets
• Installed against the wall or back to back
Compact 550 mm solutions of a complete series
ET1-12 550 products inherited the strengths of the ET1 and the E-VAC series of products and further realized the compact design of switchgear to better suit limited space such as commercial real estate and field modification. The products have been comprehensively qualified through type testing with optimized user safety, reliability, cost-effectiveness and high performance.
• New compact design with only 550mm width to save installation room
• Small size VCB as part of E-VAC series, inherited Eaton's high-quality vacuum interrupter and solid encapsulation workmanship
• Same user interface and operation with the ET1 switchgear; free configuration for different rating feeders to form one system is possible
E-VAC vacuum circuit breaker
Features
The epoxy resin encapsulated pole unit has excellent insulation performance and can adapt to rough environments
Use of Eaton's latest vacuum interrupter that has a long life span, low wear and low chop
● Mature spring mechanism with steady performance, a long life span, and minimal maintenance
Excellent performance on switching resistance, inductive and capacitive loads with a very low restroke rate
AC/DC control power supply
● The spring mechanism realizes automatic mechanical and electrical tripping
Available auxiliary contacts to display the status of the spring charged or not
Mechanical indicator shows the closed/opened state
The auxiliary contact shows the closed/opened state
The auxiliary contact shows the service/test position of VCB
The auxiliary contact available for remote display
Mechanical interlock to ensure door-closed operation
The mechanical interlock ensures the VCB truck racking in or out only when tripped
SL series of contactors
The fused contactor truck may be adopted for motor start and capacitor bank.
Features
Green and environmentally friendly vacuum interrupter
The rated current of contactor up to 400A
● The maximum breaking current up to 7.2kV 8.5 kA/12kV 4kA
● Up to 50 kA HRC fuse
The maximum rated current of the fused-contactor up to 7.2kV 250A/12kV 200A
The electronic tripper controller allowed to select the control voltage and trip time on • site
Optional mechanical interlock
•Electrical life span up to 30000 times
• Mechanical operation is possible up to 12kV, 1,00,000/7.2kV, 2,500,000 times, without
● service or adjustment
Main components
Busbar
The busbar system consists of a highly-conductive copper row, with a cross section being a standard rounded rectangle.
Features
● Respective busbar compartments are separated by single partition boards
• Fully insulated main busbar penetrates the whole switchgear
The ventilation of the busbar compartment is directly linked to the pressure relief channel
● For supporting the busbar, the large creepage distance insulators are used
The pre-drilled copper makes field connection easy
The rated current of the busbar system reaches 4000A and short-circuit current reaches 50 kA-4s
Earthing switch
Both the incomer and feeder can be configured with the cable side earthing switch. There is a mechanical interlock between the earthing switch and the circuit breaker. Only when the circuit breaker is in the opened state and has moved to the "isolated/testing" position can the earthing switch be operated.
Features
● The quick earthing switch passed the fault test
Front access operation easily with low torque via the bevel gear
Auxiliary contacts for open/closed positions
● Mechanical indicator for open/closed positions
Mechanically and/or electrically interlocked with VCB to ensure safety of operators
Current/voltage transformer
Features
● Configured with smaller epoxy resin molded current transformer
The external/built-in fuses to protect the transformer
The type of voltage transformer meets the demand of the compact switchgear
Quality and service warranty
Certifications
• All products have been certified through type-testing performed at a third-party test station
• Related product high-tech certifications
Factory Acceptance Test (FAT)
• The FAT is performed combining test items required by customers
• Field facilities and simulated field environment, testing and measuring test equipment and complete documentation are provided as required
• Customer engineers take part in the whole process as witnesses and sign off for confirmation
Ex-work inspection
• Strict ex-work inspections are performed on each vacuum interrupter, circuit breaker and switch equipment. Upon completion of the overall installation, thorough appearance checks and mechanical functional and electrical tests need to be performed.
• Before being released from the factory, circuit breakers go through standard switchgear coordination tests to ensure product interchangeability and universality.
• Before being released from the factory, circuit breakers go through the run-in test for mechanical operation to ensure steadiness of the performance.
• The ex-work inspection data of all products are archived and traceable.
Quality control
• The R&D process is managed through Prolaunch
• The manufacturing facilities follow the globally consistent Eaton quality, environment, and safety system (EQS&EHS) ISO14001 / OHSAS18001 certified
• Both the switchgear and the circuit breaker are tooled to ensure consistency in dimensions
• Quality test from raw material to finished product
• Automatic three-axis imaging test
• X-ray testing
• Loop resistance test
• Switchgear mechanical property test
• Pressure tolerance and local release test
• Mechanical and electrical test
Technical Data
| ET1-12 | ET1-12 550 | ET1 (F-C) | ||
| System | ||||
| Rated voltage | kV | 12 | 12 | 7.2; 12 |
| Rated Power frequency withstand voltage (1 min) | kV | 42 | 42 | 32;42 |
| Rated lightning impulse withstand voltage (BIL) | kV | 75* | 75 | 60;75 |
| Rated frequency | Hz | 50 | 50 | 50 |
| Busbar system | ||||
| Main busbar rated current | A | 1250;1600;2000;2500; | 1250;1600;2000;2500; | 1250;1600;2000;2500; |
| 3150; 4000 | 3150; 4000 | 3150; 4000 | ||
| Branch busbar rated current | A | 630;1250;1600;2000; | 630;1250 | Maximum 200 (depending on |
| 2500;3150;4000(FC)* | the fuse) | |||
| Short time withstand current Rated peak withstand current (peak | kA/s | 25;31.5; 40; 50/4 | 25;31.5/4 | 4;6/4 |
| value) | kA | 63; 80; 100; 125 | 63;80 | 10; 15 |
| Vacuum Circuit breaker | ||||
| Model No. | E-VAC | E-VAC | / | |
| Rated current | A | 630; 1250; 1600; 2000; | 630;1250 | |
| Rated short-circuit breaking current | 2500; 3150; 4000(FC) | 1 * | ||
| Rated short-circuit making current (peak | kA kA | 25; 31.5; 40; 50 63;80;100;125 | 25;31.5 63;80 | |
| value) | ||||
| Short time withstand current Mechanical life | kA/s | 25; 31.5; 40;50/4 | 25;31.5/4 | / |
| SL contactors | times | 30,000/20,000/10,000 | 30,000 | 1 |
| Rated current | A | / | 400 | |
| Rated breaking current | kA | 1 | / | 8.5; 4 |
| Rated short-circuit making current (peak value) | kA | / | / | 10.4 |
| Rated short-time withstand current | kA/s | 1 | / | 6/1; 6/4 |
| Withstand current | kA | 1 | / | 15 |
| Electrical life (AC3, AC4) | times | 1 | / | 300,000 |
| Mechanical life | times | / | / | 1,000,000** |
| Enclosure | ||||
| Degree of protection | IP4X (IP2X for internal partition) | |||
| Partition class | PM | |||
| Standard color | RAL7035 | |||
| *BIL 95kV can be meet if required; | *The short-circuit breaking current of F-C depend on fuse | |||
| *Add cooling fan while | with max. 50kA. **The mechanical life bases | |||
| rated current up to 4000A. | on electrical latch contactor; The mechanical latch should | |||
Main dimensions
| Basic solution | Width W (mm) | Height H1 (mm) | Height H2 (mm) | Depth D1 (mm) | Depth D2 (mm) | Reference weight (kG) | |
| 7.2/12kV Contactor | |||||||
| 400A F-C | 600 | 2200 | 2325 | 1500 | 1570 | 750 | |
| 12kV 550 VCB panel | |||||||
| 630A | 25kA | 550 | 2200 | 2325 | 1500 | 1570 | 780 |
| 1250A | 25/31.5kA | 550 | 2200 | 2325 | 1500 | 1570 | 800 |
| 12kV panel | |||||||
| 630A | 25/31.5kA | 800 | 2200 | 2325 | 1500 | 1570 | 850 |
| 1250A | 25/31.5kA | 800 | 2200 | 2325 | 1500 | 1570 | 900 |
| 1250A | 40kA | 800 | 2200 | 2325 | 1500 | 1570 | 900 |
| 1250A 1600 | 50kA | 800 | 2200 | 2325 | 1500 | 1570 | 900 |
| 31.5/40kA | 800 | 2200 | 2325 | 1500 | 1570 | 1000 | |
| 1600/2000A | 40/50kA | 800 | 2200 | 2325 | 1500 | 1570 | 1000 |
| 2500A | 31.5/40/50kA | 1000 | 2200 | 2325 | 1500 1500 | 1570 | 1200 |
| 2500A 3150A | 50kA | 1000 | 2200 2200 | 2325 2325 | 1500 | 1570 1570 | 1200 |
| 31.5/40/50kA | 1000 | 1280 | |||||
| 4000A | 40/50kA | 1000 | 2200 | 2325 | 1500 | 1570 | 1450 |
Basic solution and configuration
| VCB Incomer | Top entry VCB Incomer | VCB Feeder | F-C Feeder | Busbar VT | |||||||
 |  |  |  | ＆H"I==O | |||||||
| VTArrestorMeteringFusePrimy nnents | Vacuum circuit-breaker | O | 1 | ● | 1 | · | 1 | ||||
| Vacuum contactor | ● | 1 | |||||||||
| Disconnect truck | |||||||||||
| VT & Arrestor truck | ● | 1 | |||||||||
| truck | O | 0 or 1 | O | 0 or 1 | O | 0 or 1 | |||||
| truck | O | 0 or 1 | |||||||||
| truck | |||||||||||
| truck | |||||||||||
| Current transformer | ● | 3 or 2 | ● | 3 or 2 | ● | 3 or 2 | ● | 3 or 2 | |||
| Voltage transformer | O | 1-3 | ● | 1~3 | ● | 2-3 | |||||
| Surge arrestor | O | 0 or 3 | O | 0 or3 | O | 0 or 3 | O | 0 or 3 | ● | 3 | |
| Earthing switch | O | 0 or 1 | O | 0 or 1 | O | 0 or1 | |||||
| HRC fuse | ● | 3 | |||||||||
| PT protection fuse | O | 20r3 | O | 2 or3 | ● | 3 | |||||
| Ring type CT | O | 0 or 1 | O | 0 or 1 | O | 0 or 1 | |||||
| Voltage Indicator | ● | 1~2 | ● | 1-2 | ● | 1~2 | ● | 1-2 | ● | 1-2 | |
| Transformer | |||||||||||
| LVcomnnts | Protection relay | O | O | O | O | O | |||||
| Meter | O | O | O | O | |||||||
| Enty | Bottom cable entry | ● | ● | ● | |||||||
| Top cable entry | O | O | O | O | |||||||
| Top busbar entry | O | ● | O | O | |||||||
| Ratng | Rated current (A) | 630~4000 | 630~4000 | 630~4000 | <=200A | <=3A | |||||
| Dlimnsins | Width (mm) | 550/800(630~1250A)800(1600~2000A)1000(2500~4000A) | 550/800(630~1250A)800(1600~2000A)1000(2500~4000A) | 550/800(630~1250A)800(1600~2000A)1000(2500~4000A) | 600 | 550 (for withdrawable VTs only;VT's parameter to be confirmed byEaton due to size limitations)800/1000 (both VTs and surgearrestor can be installed in truck) | |||||
| Depth D2 (mm) | 1500 (Bottom rear cable in/out)1650(Top rear cable/busbarin/out) | 1500 | 1500 (Bottom rear cable in/out)1650(Top rear cable/busbarin/out) | 1500 (Bottom rear cable in/out)1650(Top rear cable/busbarin/out) | 1500 | ||||||
Basic solution and configuration (continued)
Bus section | |||||||||
Bus riser Metering Transformer 000-000QQ  II=81 | |||||||||
| VTPimo cments | Vacuum circuit-breaker | 1 | |||||||
| Vacuum contactor | |||||||||
| Disconnect truck | ● | 1 | |||||||
| VT & Arrestor truck | ● | ||||||||
| truck | O | 0 or 1 | |||||||
| Arrestor truck | O | ||||||||
| Metering truck | O | 0 or 1 | |||||||
| Fuse truck | ● | 1 | |||||||
| Current transformer | ● | 3 or 2 | ● | 3 or 2 | ● | 3 or 2 | |||
| Voltage transformer | ● | 2~3 | |||||||
| Surge arrestor | O | 0 or 3 | ● | 3 | |||||
| Earthing switch | |||||||||
| HRC fuse | ● | 3 | |||||||
| PT protection fuse | ● | 3 | |||||||
| Ring type CT | |||||||||
| Voltage Indicator | ● | 1~2 | ● | 1~2 | ● | 0~1 | O | 0~1 | |
| Transformer | ● | 1 | |||||||
| LVcents | Protection relay | O | O | ||||||
| Meter | O | O | O | ||||||
| Enty | Bottom cable entry | ||||||||
| Top cable entry | |||||||||
| Top busbar entry | |||||||||
| Ratng | Rated current (A) | 630~4000 | 630~4000 | 630~4000 | <=3A | ||||
| Dimensins | Width (mm) | 550/800(630~1250A)800(1600~2000A)1000(2500~4000A) | 550/800(630~1250A)800(1600~2000A)1000(2500~4000A) | 550 (up to 1250A; Fixed installSurge arrestor; VT's parameter to beconfirmed by Eaton due to sizelimitations)800 (630~2000A)1000 (2500~4000A) | 800 (for transformer up to 50kVA) | ||||
| Depth D2 (mm) | 1500 | 1500 | 1500 | 1500 | |||||
General requirements for the installation of switchgear
The location and passageway available for the installation of the switchgear should meet applicable requirements.
The installation foundation for the switchgear usually requires two concrete pouring efforts. The first one is meant to install embedded parts of the switchgear and pave the underlying channel steel. The second concrete pouring effort is for the supplementary level on the ground; the general height is 60 mm. The height of the concrete should be below that of the surface of the channel steel by 3 to 6 mm when the supplementary level of concrete is poured.
The patterns of primary and secondary cable grooves of the switchgear depend on the location and construction conditions of the switchgear to be installed.
The difference per meter on the surface level of the installation foundation of switchgear may not be greater than 1 mm. The difference over the whole length may not exceed 3 mm.
The switchgear is delivered to a specific location according to engineering needs and as shown in the drawings. For a relatively long row of switchgear (with more than 10 units), it is advised to begin with the center while combining the units.
There should be suitable transport tools in the field of installation, such as cranes and forklifts; rollers and crowbars are strictly prohibited.
During installation, the circuit breaker handcart should be removed from inside the switchgear and be placed in another place for proper storage first.
During installation, first calibrate the first unit or ensure that horizontal and vertical requirements are met from the first connecting surface.
The unevenness of switchgear, once installed, may not exceed 2 mm.
Once the first unit is calibrated, install the other units. Pay attention to the side holes and the installed units.
Spare components and parts and accessories
Included documents
• Product Qualification Certificate
• Product Ex-work Inspection Report
• Packing List
• Installation and Operation Instructions
• List of Included Spare Components and Parts and Accessories
• Secondary wiring diagram
• Other relevant materials required by the customer
Ordering information
• It is required to provide the following information when placing an order:
• System wiring diagram, primary solution layout and floor plan
• Earthing switch operating handle
• Trolley
• Door locking handle
The accessories of switchgear generally include:
• Specialized tools
• Racking handle
• VCB charging handle
• Line access approach and line access cable specification and quantity
• Opening/closing operating pin
• Basic parameters, including rated voltage, rated current, circuit breaker opening/closing current and control power voltage
• For special user environments or requirements, please contact Eaton first.
• Special requirements for the element model number, specification and quantity (if any)
Spare components and parts generally include:
• PT protection high-voltage fuse
• Opening coil
• Closing coil
• Voltage Indicator Display
Auxiliary switch
• Indicator
• Transfer switch
• Electromagnetic lock
The list of spare components and parts is eventually based on customer requirements and decided mutually between the supplier and the party with demand.
Foundation and floor plan
ET1 installation foundation illustration
Eaton is an intelligent power management company dedicated to protecting the environment and improving the quality of life for people everywhere. We make products for the data center, utility, industrial, commercial and institutional, machine building, residential, aerospace and mobility markets. We are guided by our commitment to do business right, to operate sustainably and to help our customers manage power — today and well into the future. By capitalizing on the global growth trends of electrification and digitalization, we're helping to solve the world's most urgent power management challenges and building a more sustainable society for people today and generations to come.
Founded in 1911, Eaton has continuously evolved to meet the changing and expanding needs of our stakeholders. With revenues of $27.4 billion in 2025, the company serves customers in 180 countries. Eaton entered the Chinese market in 1993 and has grown significantly since then. In 2004, Eaton moved its Asia-Pacific headquarters from Hong Kong to Shanghai. Today, Eaton has nearly 9,000 employees and 20 manufacturing facilities in China.
For more information about Eaton China, visit www.eaton.com.cn
For more information, visit Eaton.com.cn
Eaton Corporation
Asia Pacific Headquarter
No.3, Lane 280, Linhong Road,
Changning District,
Shanghai 200335
www.eaton.com.cn/electrical
