| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Single-column Disconnector |
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Henan Energy Electric Equipment Co., Ltd. was established in 2011 and is an excellent and reliable power equipment manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations, high-voltage switches, and medium and low voltage complete sets of equipment. The equipment put into production and operation of the project advocates energy saving, intelligence, informatization, and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center, with 71 utility model patents and 15 invention patents. With years of accumulation in the transformer industry and strong technological innovation capabilities, HZEC products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa, and other regions, covering more than 40 countries.
| Item | Unit | GW8-72.5 GW8-126 | |||||
| Rated voltage | KV | 72.5 | 126 | ||||
| Rated current | A | 400, 630, 1250 | 400, 630, 1250 | ||||
| Rated short-time withstand current | KA | 8, 20, 31.5 | 8, 20, 31.5 | ||||
| Rated peak withstand current | KA | 20, 50, 80 | 20, 50, 80 | ||||
| 1min power frequency withstand voltage(valid) | KV | 140 | 230 | ||||
| Lightning impulse withstand voltage (peak) | KV | 325 | 450 | ||||
| Mechanical life | Time | 2000 | 2000 | ||||
| Min. insulation gap after switching | mm | >675 | >1050 | ||||
| Main circuit resistance | fxQ | <180 | <200 | ||||
| Equipped mechanism | Cs17 (or) CJ6, CK7, Cs14 | ||||||
| Unpolar weight | Kg | 160 | 200 | ||||
1. Altitude: below 2000m;
2. Ambient air temperature :-25ºC~+40ºC;
3. Relative humidity: the daily average is not more than 95%, the monthly average is not more than 90%;
4. The surrounding air should be free from corrosive or flammable gases, water vapor and other obvious pollution;
5. No frequent violent shaking.
1. The isolation switch adopts the double-column center opening and contact turn-in structure, which has the ability of self-cleaning contacts and improves the contact reliability;
2. The rotating part of the isolation switch is designed to be maintenance-free. The rotating seat is designed as a sealed structure, water vapor, dust, harmful gases can not enter, so that the bearing, the second molybdenum lithium base lithium base grease will always work in a good environment, the shaft garlic does not rust, the grease can not be lost, never dry solid, so that the kneading torque after long-term operation of the isolation switch will not increase. Stainless steel shaft pin and oil-free self-lubricating bearing matching structure;
3. The steel parts are hot-dip galvanized to ensure that the isolation switch is flexible, lightweight, reliable and never rusted.
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