Electric test system HZCJ

impulse voltageon sitehigh-voltage

• Nominal voltage: 900kV • Rated stage voltage: 150kV × 6 levels • Nominal energy: 67.6kJ • Total capacitance: 0.167µF (12 × 2µF/75kV capacitors) • Waveform: lightning impulse 1.2/50µs, chopped impulse 2–6µs • Divider accuracy: ≤±1%, response time ≤100ns • Operating cycle: ≥70% rated voltage, 120s continuous duty The Huazheng 900kV Impulse Voltage Generator is engineered for standard lightning impulse full-wave and chopped-wave testing of transformers, reactors, bushings, insulators, arresters, and other high-voltage apparatus up to 20kV class. Built to comply with GB/T 311, GB/T 16927, JB/T 7616, and related international standards, it provides highly accurate and repeatable test waveforms for insulation coordination and withstand tests. The oil-immersed capacitors, precision resistors, and triggered ball gaps guarantee reliable synchronization and long service life under demanding test conditions. The system adopts a constant current charging unit with oil-immersed transformer, high-voltage rectifier, and polarity switching mechanism for stable and flexible operation. The advanced console integrates data acquisition, optical-fiber control, waveform display, and automated report generation, ensuring operator safety and efficiency. With reliable performance, compact structure, and compliance with strict testing standards, the Huazheng 900kV generator is an ideal choice for power utilities, research institutes, and high-voltage laboratories.