VTIS for Secondary Control System Power Supply and Breaker Protection

VTIS can comprehensively protect the key factors that reduce the reliability of the secondary control power supply for circuit breakers, such as voltage fluctuations, interference, lightning overvoltage, short-term power loss, etc., which can cause the control system to fail to operate normally, thereby avoiding shutdown or damage to the primary system or equipment caused by the above reasons.

VTIS consists of a parallel oscillation control module and a series interference suppression module. The series interference suppression module operates in a long-term mode and always maintains a continuous working state. When the secondary control power supply or circuit breaker secondary circuit is subjected to multiple interferences such as lightning overvoltage, ground potential counterattack overvoltage, operation overvoltage, resonance overvoltage, voltage transient, harmonic, high-frequency interference, etc., it can effectively suppress and protect the reliable and safe operation of the secondary system.

product details

Functional features

• Normal start and stop will not delay, and the circuit breaker will only delay when there is voltage fluctuation;

• Equipped with voltage fluctuation recording and searching function, capable of recording the last 10 fluctuation times;

• When the module malfunctions, it does not affect the normal operation of the circuit;

• Equipped with hardware voltage fluctuation/power outage identification circuit, used to distinguish between voltage drop faults and normal power outages.

products advantage

• VTIS can provide dual protection against voltage fluctuations and interference for circuit breaker control power supply;

• The VTIS wiring method is simple and convenient, without the need for significant changes to the circuit;

• Supercapacitor energy storage has the advantages of long service life, short charging time, high discharge current, multiple cycles of charging and discharging, no memory effect, and simple charging control circuit;

• The series interference suppression module has multiple electrical safety active defense functions, including lightning overvoltage suppression, ground potential counterattack overvoltage suppression, operation overvoltage suppression, resonance overvoltage suppression, voltage temporary rise regulation, and load interference suppression.

• VTIS has a hardware voltage fluctuation/power outage identification circuit, used to distinguish between voltage drop faults and normal power outages.