WHAT IS VOLTAGE SAG?

According to IEEE standard 1159-1995, a voltage sag is defined as a decrease in rms voltage down to 90% to 10% of nominal voltage for a time greater than 0.5 cycles of the power frequency but less than or equal to one minute.

Characteristic of voltage sags:

     - High frequency of occurrence

     - The time of sag is unpredictable

     - Short duration and deep depth

WORKING PRINCIPLE

Sinexcel AVC-RTS is installed between the load and power supply, in the event of an outage, voltage drops or swells, Sinexcel AVC-RTS will transfer the load to the backup energy storage system, powered by the super capacitors to ensure the sensitive loads are well protected.

01. Utility voltage within normal range

Thyristor is on, power to the load is supplied from the utility.

02. Voltage sag/voltage swell occurs

Thyristor is off, isolated the grid voltage from the load, power to the load is switched to super capacitors within 1/4 cycle.

03. Utility back to normal

Thyristor is on, power to the load is switched back to the utility, the super capacitors start to charging in preparation for the next voltage event.

EXCELLENT COMPENSATION EFFECT

Sinexcel AVC-RTS provides fast accurate protection against sags and swells as well as continuous voltage regulation.

Even when the voltage drops to zero, the AVC-RTS can still support the loads of 100% rated voltage, 2ms typical fast response.

100%     Voltage full compensation  

2ms         Typical 2ms response time,  within 5ms 

3 / 1          Three/single phase voltage sag compensation

99% HIGH EFFICIENCY

Sinexcel AVC-RTS is an OFF-Line unit specifically designed to correct voltage sag and voltage swell. The inverters are usually in the standby state, only when the voltage exceeds the normal range, the inverter will start to work, which greatly saves energy consumption.