1.Introduction

Automatic voltage Stabilizer system is our product. It is composed of voltage regulation system, servomotor and automatic control circuit. When grid voltage is unstable or when the load changes, the automatic control circuit would sample, amplify and send signal to control the servomotor to adjust the position of carbon brush on the voltage optimizers system, regulate the output voltage to the rated value finally.
 
Our products can offer high capacity and high efficiency. They are easy to operate, require simple maintenance and offer high reliability. The UNITs can match any load, especially unmanned operation of equipment in telecommunication centers. The UNITs provide stable output voltage supply for electronic equipment such as telecom base station, CNC machines, computerized topography, printing machines, production lines and others.
 
The electrical design combines three-phase overall control with independent phase adjustments.

2.Technical characteristics
 

Range of input voltage (3-phase-5-wire-system)	Phase voltage: View the label behind the case!
Output voltage (3-phase-5-wire-system)	Phase voltage: View the label behind the case!
Accuracy of voltage stabilization	≤±3%(adjustable)
Frequency	60Hz
Waveform distortion	No additional waveform distortion
Efficiency	≥98%
Delay time	4~7s  (Over-voltage and Under-voltage protection)
Ingress protection of enclosure	IP21
Insulation and thermal endurance class	Class H
Electrical strength	No flashover or breakdown when at 2500V/min
Insulation resistance	≥5MΩ

3.Normal service conditions

1. Ambient temperature: -20°C to +35 °C
2. Relative humanity: <90%
3. Working environment: indoor environments where are far away from chemical deposition, harmful corrosive medium, or flammable/explosive gas. Besides, the altitude is not higher than 1000m.

4. Situation for capacity

2.3.1 In generally, the load power factor of AC regulator is 0.8;
2.3.2 In the inductive and compatible load environment, If choosing the model, Please consider the start current of load, It will be influence to regulator, How to choose the model, Please see table.
 
Remark: Calculate formula: Model chosen volume of regulator(KVA)=Load Power(KW)/power factor*safe factor
 

Load	Equipment type	Load unit	Power factor	Safe factor	Capacity of stabilizer
Pure resistance load	Resistive wires Electric furnance	No requirement	1	1.2	Equal or more than load power
Inductive load	Electric lift, Motors, Air condition	Heavy start current	0.7-0.8	2	Equal or more than 2 times of the load power
Capacitive load	Broadcast, TV		0.7	1.5