HMG Power Systems Pvt. Ltd. Manufactures On Load Tap Changer with Max. Rated step voltage of 600V. 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 On Load Tap Changer with Max. Rated step voltage of 600V is used for Oil immersed distribution transformers. The On Load Tap Changer with Max. Rated step voltage of 600V has different connections like linear regulation in neutral point, middle-bridging regulation, and linear regulation for any connection.