H.V System

H.V. System

        The high-voltage (H.V.) power supply system is designed for reliable power distribution in ferroalloy plants, steelmaking furnaces, submerged arc furnace (SAF) facilities, and other industrial power systems. It ensures safe operation, stable performance, and effective protection of critical electrical equipment.

        The system typically consists of incoming feeder switchgear with voltage transformer (VT), a high-voltage vacuum circuit breaker with current transformer (CT), zinc oxide surge arresters, and RC snubber protection devices. These components are integrated into a complete high-voltage switchgear system, including incoming line, circuit breaker, and protection panels.

The H.V. system adopts KYN series armored withdrawable AC metal-enclosed switchgear, featuring comprehensive mechanical and electrical interlocking functions to prevent misoperation, including breaker racking under load, incorrect switching sequences, and operation of grounding switches under energized conditions.

                                                                          KYN 33KV/35KV H.V cabinet

        To ensure system reliability, surge protection devices are installed to suppress lightning-induced and switching overvoltages, providing effective protection for transformers and associated equipment. Zinc oxide surge arresters offer reliable phase-to-phase and phase-to-ground insulation protection within the high-voltage network.

Designed and manufactured in accordance with IEC 62271 standards, the system delivers high operational safety, reliable performance, and long-term service in demanding industrial environments.