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Three Phase Contactless Avr Voltage Regulator 380V 20KVA With Black Enclosure

Three Phase Contactless Avr Voltage Regulator 380V 20KVA With Black Enclosure

auto voltage stabilizer

avr voltage regulator

Place of Origin:

Shanghai, China

Brand Name:

Ewen Power


CE, ISO:9001

Model Number:


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Product Details
Product Name:
Three Phase Contactless AVR Voltage Stabilizer
Product Model:
Input Voltage:
304~456V (could Be Customized)
Output Voltage:
Output Precision:
±1% ±2%
Reaction Time:
Payment & Shipping Terms
Minimum Order Quantity
1 pc
Packaging Details
Wooden Case
Delivery Time
According to Quantity
Payment Terms
Supply Ability
300 pcs per Month
Product Description

Three Phase Contactless Avr Voltage Regulator 380V 20KVA With Black Enclosure


1. Product Introduction


Product name: three phase contactless AVR voltage stabilizer

Product model: ZPW-20KVA

Rated capacity: 20000VA

Rated working efficiency: 45-60Hz

Phase: three phase

Current type: AC

Input voltage: 304-456V or tailored according to your needs

Output voltage: 380V/400V/420V/440V or customized

Voltage regulating way: automatic regulation

Response time: less than 30ms

Display: LCD dispaly

Voltage stabilization precision: ±2% or ±1%


2. ZPW Series Specifications


Rated capacity





400KVA,600KVA,800KVA or

customized according to real


Input Wires 3 wires + N
Voltage range 304 to 456V or customized
Frequency 45-60Hz
Output Wires 3 wire + N + PE
Voltage 380V or customized
Frequency 45-60Hz
Efficiency 98%
Response Time Less than 30ms
Delay time Five seconds
Waveform No additional waveform distortion
LCD Display Input voltage

Real-time show of input voltage

and its fluctuation

Output voltage

Real-time show of the output


Output current Display of the working current
Working conditions

The indication light on the LCD

screen would show the condition

of the stabilizer, like voltage

stabilization, over-voltage,

under-voltage etc.

Working Environment Temperature -15~45℃

Less than 90%

Altitude Less than 1500m
Electrical Parameters Electrical Strength 2000VAC/min, without flashover
Insulation Class F
Insulation Resistance ≥2 MΩ


3. Protection Functions


① Over-load protection: when the actual load is higher than the rated capacity, stabilizer would power off automatically.

② Over-voltage protection: if the output voltage is 10% higher than the rated output voltage, the stabilizer stops working automatically.

③ Over-current protection: this protection function is the same as the first one, over-load protection. If the load is over rated one, the current would be higher than the rated one too.

④ Short-circuit protection: if there is a short circuit, the stabilizer would also cut off the power automatically to protect the electrical machine.

⑤ Time delay protection: there is a five-second time delay when the stabilizer powers on in order to protect the stabilizer itself. 


4. More pictures

Three Phase Contactless Avr Voltage Regulator 380V 20KVA With Black Enclosure 0

This picture shows the inner parts of the contactless AVR voltage stabilizer. Please have a look at the silicon-controlled modules and the circuit boards. These parts are very crucial to the stabilizer.

Three Phase Contactless Avr Voltage Regulator 380V 20KVA With Black Enclosure 1

This picture mainly shows the other side, from which you could see the transformers which controls the output precision. Normally, there are six transformers for a stabilizer. Here, there are nine transformers, for which the precision of this stabilizer could be up to ±1%.

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