China AVR Voltage Stabilizer manufacturer

Automatic High Power Voltage Stabilizer 300KVA Capacity For Large Factories

Product Details:
Place of Origin: Shanghai, China
Brand Name: Ewen Power/OEM/ODM
Certification: CE, ISO:9001
Model Number: SBW-300KVA
Payment & Shipping Terms:
Minimum Order Quantity: 1 pc
Price: Negotiation
Packaging Details: Export Packing
Delivery Time: According to Quantity
Payment Terms: T/T,
Supply Ability: 400 pcs per Month

Detail Information

Product Name: Automatic High Power Voltage Stabilizer Phase: Three Phase
Power: 300KVA Voltage: 380VAC/400VAC Or Customized
Type: AVR Display: LCD Display
High Light:

three phase voltage regulator


high power voltage regulator

Product Description

Automatic High Power Voltage Stabilizer 300KVA AVR 380V 400V with LCD Display


1. Product Introduction

This product is a three phase 300KVA AVR. The rated capacity is 300KVA, with rated input voltage range 304VAC to 456VAC (380VAC±20%) and output voltage 380VAC. The output precision of this 300KVA high power voltage regulator is ±2% while the response time is less than one second when the input voltage fluctuates less than 15 volts. 

As for its applications, the voltage regulator could be used for large factories, hospitals, schools, and malls etc. It also could be used with large capacity electrical equipment, like generator, printer, laser-cutting machine, air compressor, and any appliance needing stable voltage.



2. Product Specifications


Product Name High Power AVR Three phase, full automatic, AC
Product Brand Ewen Power OEM &ODM available
Place of Origin Shanghai, China /
Prodct Model SBW-300KVA SBW-F-300KVA (Independent regulation could be customized)
Rated Capacity 300KVA Larger or smaller capacity could be tailored
Working Frequency 50Hz-60Hz 47-63Hz
Rated Input Voltage Range 304-456VAC normally (380V±2%) Customization is available
Rated Output Voltage 380VAC normally Customization is acceptable
Input Current


The current depends on the voltage
Output Current 455A The current depends on the voltage
Output Precison ±2% ±1% could be tailored (SCR type)
Insulation Class Class F/
Insulation Resistance ≥2/
Protection Class IP20 IP44 Waterproof class could be tailored
Ambient Working Temperature -15℃~45℃
Ambient Altitude <2000m
Temperature Rise <80℃ <60℃ normally
Dielectrical Strength 2000VAC lasting one minute
Power Factor >90%
Product Function Automatic Voltage Stabilization/AVR
Total Power Loss 1% of the rated capacity
Product Protections Short circuit, over-voltage, over-current, under-voltage, overload, over temperature, time delay, phase failure, and phase loss etc.


3. Product Advantages


Advantages Description
Fast reaction speed Being allergic to voltage change, the 300KVA AVR reacts quickly, normally within one second.
Full protection functions Over-voltage, over-current, over-load, under-voltage, time delay, short circuit, phase failure protections are designed with the AVR.
High output precision The output accuracy of this 300KVA AVR is ±2%.
Availability for customization Customization is available. The product could be customized based on your requirements.
Suitability for different loads Having a strong load-bearing capability, this AVR is suitable for inductive load, resistant load, and capacitve load.
Long service time Under proper usage and maintenance, the product could work for more than 10 years.



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