User Manual

(ForAVR Series Voltage Stabilizer)

ProductIntroduction .1/8
Installation Wiring. 3/8
Operation Guide. .4/8
Equipment Cautions. 5/8
Maintenance&Fault. .6/8

When the voltage stabilizer's LCD displays an alarm message and the alarm buzzer sounds,immediately save the device data, shut down the equipment, and arrange for professonals to inspect the power grid lines and troubleshoot.The voltage stabilizer will cut off the main power supply within 5 minutes!!

1. Product Introduction

1-1. Overview and Characteristics

This product is anewly developed next-generation inteligent voltage stabilizer.It employs DSP-based measurement chipcontrol,fastACsampling,zero-crossngcurrent switching,andrapidcompensation voltagestabilization technology, integrating inteligentinstrumentation,fastvoltagestabilization,andfaultdiagnosisfunctions.Thecoreconfiguration includes an isolation transformer，SVC voltage stabilization module,MCU control core ^ + high-precision sampling components,andsafetyprotectiondevices,oferingadvantages insfety,eficiencyprecision,energyconservation,and environmental protection.

(1）Smart LCD display:Thesmart meter providesreal-time readings of line voltage,phase voltage,current,frequency, temperature,andoperational status withhighresolution.Featuringa thin-filmbutton for intuitive operation,it ensures safety and reliability.
(2）Three-phase demodulation:The output voltage imbalance is less than 1 % ,ensuring the accuracy of the output voltage for each phase remains constant.
(3）Wide applicability:Thevoltageregulationrangeisbroad,whichcanmetthe needsofpowersupplyand grid quality is poor, voltage fluctuation range is large places and equipment.
(4） Intelligent sampling: The microcontroller-based sampling circuit ensures precise sampling.
(5）The protector featurescomprehensive protection:it displaysand safeguards against faults includingoverload, overvoltage,undervoltage,shortcircuit,andoverheating,ensuring safe operationofboth the voltage stabilizerand its load.
(6）Powerful preset features:Protection limits can be set freely.
(7）High overload capacity:The system employs premiumcomponents with excellnt performance,capable of continuous operation at 80 % rated load and enduring a 1-minute instantaneous overload (2x rated load) without damage.
(8）Adaptability:Ithas strongadaptability to power gridand load,andcan work reliablyandcontinuously under various harsh power grid and complex load conditions.
(9）No distortion: Compensated voltage regulation method, no waveform distortion
(10)Low power loss:The system achieves minimal energy consumption with no-load loss below 0 . 5 % ，delivering substantial savings on electricity bills for customers.
(11)Bypass function for easymaintenance: Switchesbetween‘voltage stabilization'and'direct bypass power supply'for convenient troubleshooting.

1-2.Environmental Requirements

(1）The voltage regulator should be used indoors with good ventilation and a flat,solid floor.
(2）No conductive or explosive dust,nocorrosive metals,or gases,vapors,oroil mists that maydamage insulation. (3）The rated capacity decreases with altitude.(Use at <= 1 0 0 0 { m } altitude;above this limit, the rated capacity is reduced.) (4） The ambient temperature ranges from- 5 ^ { \circ } C to + 4 0 ^ { \circ } \mathsf C ,with a daily average <= 3 0 ^ { \circ } C and an annual average <= 2 5 ^ { \circ } C .The temperature variation rate of the working environment should be <= 5 { K / h } .(Note: The overload capacity will decrease.) (5）Relative humidity: { <= } 9 0 % { R H } (no condensation at 4 0 ^ { \circ } \mathsf { C } ± 2 ^ { \circ } \mathsf { C } ) 一
(6）The waveform of the power supply voltage is approximately a sine wave (THD <= 4 % ）
(7）The transient peak voltage (Vp-p) in the power grid is <= 2 0 0 0 { V } , and there are no lightning strikes.
(8）Exposure to radioactive radiation should be avoided.
(9）Avoid abnormal mechanical stresses such as impact and vibration.
(10)Multiple voltage stabilizers should not be operated in parallel.
(11)Suffcient space forheatdissipationand maintenance shouldbereserved aroundandon thetopof the voltageregulator. ■Note:For special usage conditions not covered by the above terms,please negotiate with the seller during ordering or contact us at any time during use.

1-3.Technical Parameters

2. Installation Wiring

·Before instaling and wiring,always disconnect the power supply to prevent electric shock and accidents.
· The product must be installed and tested by trained electricians with proper certification.

2-1.Pre-installation Check

(1）Check if the product model and specifications match yourorder details,especially capacity and input/output voltage values.
(2）Check whether the factory documents(manual, certificate of conformity,etc.）and the items agreed to be delivered under the order are complete.
(3）Check whether the electrical components in the voltage regulator cabinet are damaged during transportation.
(4)Ensure all fasteners are securely fastened and wiring remains intact.Tighten the control plug to prevent poor contact.
(5）Upon delivery,users should unpack,inspect,and install the voltage stabilizer within one month to prevent quality degradation from prolonged storage.

Accessory wiring diagram:

T ITTIIIT ΦΦΦΦΦΦΦΦ RSTNUVWNG= InputPower Output Power

PowerSwitch

2-2. Installation and Wiring

(1)Positioning:

After passing inspection, the equipment shall be stably positioned to prevent damage to the housing and internal components;the chassis shall bear uniform loads,with sufficient ventilation and maintenance space reserved around it.

(2) Cable selection:

Cableselection:Selectcompatiblecablesand connectors (to ensure reliable connections)，considering factors such as load rate,current-carrying capacity,heat dissipation,environmental conditions,installation method, and transmission length.The wire gauge should be determined based on the voltage regulator's capacity (with adequate margin).Copper wire is recommended,with a selection standard of 3 . 5 { A } / {mm } ^ { 2 }

(3) Cable connections:

Cable connections:Connect the input line to the "Input (R/S/T)" terminal, the load line to the "Output (U/V/W)" terminal,and the neutral line to the "N" terminal (no neutral connection required for no-load circuits).The chassis ground wire should be connected to the "=" marked position.

4 CAUTION

1.The wiring diagram is forreference only;the actual markings on the voltage stabilizer shall prevail. 2.Strictly follow terminal markings for wiring:Do not reverse input/output and phase/neutral wires,avoid confusing neutral with ground,and never omit the ground wire.Incorrect connections may cause equipment failure or damage.

3.The neutral wire mustbe properlyconnected (please specify any equipment thatdoes not require a neutral wire when placing your order).

4.The wiringandconnections from thepower supplytothe voltageregulatorand from the voltageregulatorto the loac must ensure good contact,be sturdyand reliable,andbe capableofcarrying the equipment's rated current.

3.Operation Guide

3-1. Functional area description:

Main features:

① Input voltage display;

② Output voltage indication;

③ {4} { { M } } ：Switches between three-phase rotation display keyand function return key

④ SET: Function menu key and confirmation key;
⑤ Decrease↓: The key to reduce;
⑥ Increase↑:The key to increase;

⑦

. Alarm mute button;

⑧ Switch:Akey for switchingbetween three-phase and single-phase display modes;

⑨ Current Display;

{10} Fault display area:

Overcurrent,overvoltage,undervoltage，phase loss, motor and other fault indicators.

① The voltage regulator power switch;
{12} Input terminals (R/S/T);
{ 1 3 } Output terminals (U/V/W);
{14} Manual bypass switch;

3-2. Control panel settings:

Press both the { 2 } { { s e r } } and ④ keys simultaneously for 3 seconds to display the first function code PO1.There are atotal of PO1-P29 function codes,whichcan be selected byusing the up/down keys.Beloware some commonly used function codes:

P01: Precision setting.When entering the PO1 function code interface,pressing the SET key again displays the precision value,which can beadjustedusing theup/down keys.After modification,press the SETkey again to save the changes,then press the A/M key to return to the previous function code menu.The default value is 4V, but this can be increased if the power grid fluctuates rapidly.

P02: Voltage Stabilization Seting: When the PO2 function code interface appears,pressthe SET key again to view the currnt voltage stabilization value.To adjust, use the up/down keys. Press SET again to save changes, then press A/Mto return to the previous function code menu.For split-type regulators,this value coresponds to single-phase voltage (e.g.,220V for a 380V three-phase voltage stabilizer). Long press \mathbf { A } / \mathbf { M } to return to the main display interface.

3-3.Alarm information query:

Press both the A/Mkeyand Del key for3 seconds to accessthe alarm query.The upper right corner displays: FS phase loss,VHovervoltage,VL undervoltage,CHovercurrent,and ^ { \circ } C overheating.These alarms represent the previous alarm records.Hold the A/M key to return to the main display.

4. Equipment Cautions

The following special precautions are essntial for your personal safety and the safe use of the product and connected devices.Please read them carefully before use and strictly follow them during use.

(1）Only certified electricians may install,operate,or maintain thisequipment.Unauthorized personnel are strictly prohibited from handling it.
(2）Before instalation or maintenance，completely disconnect the input power supply.Ensure all wiring issecurely fastened to prevent disconnection,sparking,contact oxidation,or automatic bypassArrange the wiring rationallyto avoid tripping or abrasion.
(3）Proper grounding mustbe ensured.The grounding wire must notbeconnected to public utilities such as heating,water

supply,or gas.Anysafety incidents caused byfailure to ground the wire shall be theuser's sole responsibility.

(4）Do not disasemble the chasis,touch internal components,orunplug cables during operation.Avoid handling the device with wet hands.Never stand on the chasis or place heavyobjects inside.Strictly prevent conductive debris from entering the chassis.
(5）Unauthorized disassemblyormodification is prohibited.Do notclean with corrosive or corrosive solvents.Do not pile items around the equipment. Ensure good ventilation.
(6）If the device is not used foralong time,the power switch should be turned offand the external wiring removed.
(7） Select equipment based on actual power consumption with a margin,ensuring voltage harmonic content <= 1 0 % .If the power factor or voltage is too low,reduce the capacity.
(8）The input voltage may fluctuate within ± 1 5 % to 30 % (based on the product specifications).
(9）Lightning protection devices must beinstalled inareas prone to lightning strikes.Please specifythis requirement when placing your order.

5.Maintenance & Fault

5-1.Daily maintenance:

4 CAUTION

Before performing maintenance, always disconnect the power supply to avoid electric shock or other safety hazards.

）Conduct regular inspections of the voltage stabilizer's operational status during use:

During inspection,verify whether thevoltage displayedbythevoltage stabilizer,the load (not exceeding therated value), andthe inputvoltage (notexceeding theallowablefluctuationrange)arenormal.Ifbnormalitiesaredetected,address tem promptly.For issues that cannot beresolved immediately,notify the supplieror manufacturer to coordinatea solution to prevent equipment damage.

·Regular maintenance of the voltage stabilizer is recommended, including:

Regularlyclean the voltage regulatorsstabilizingcomponents (removingdustanddirt to prevent moisture-inducedcontrol circuit failures),spectthechasis's fstenersandconectionterminals (ddressanyloosenessorpoorontactpromptly), and repair or replace faulty/damaged components immediately.

5-2. Exception Handling:

4 CAUTION

Before performing maintenance, always disconnect the power supply to prevent electric shock or other safety hazards.