HMG Power Systems Pvt. Ltd. Offers High Voltage Circuit-Breaker. HMG Power Systems Pvt. Ltd. Manufactures HV circuit breaker and its auxiliary equipment, electrical and mechanical components and accessories, On Load Tap Changer [OLTC], High Voltage Disconnector, and Compact Switch gear etc. The High Voltage Circuit-Breaker is mainly used for outdoor applications. The High Voltage Circuit-Breaker has Rated voltage of 40.5kV. The High Voltage Circuit-Breaker has Rated current of 2000A. The High Voltage Circuit-Breaker comes with Rated frequency of 50Hz.