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GW4-12 Series Outdoor High Voltage Disconnector 15
This series of outdoor high-voltage disconnect switches is an outdoor high-voltage electrical equipment for 50Hz three-phase alternating current.
Description
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Product Description
This series of outdoor high-voltage disconnect switches is an outdoor high-voltage electrical equipment for 50Hz three-phase alternating current. Designed for use in three-phase electrical systems of outdoor installation of alternating current 50 Hz at power plants, substations, as well as at large industrial and mining enterprises for switching high-voltage lines without load, as well as for electrical isolation and switching on/off circuits of repaired high-voltage busbars, switches and other electrical equipment from energized high-voltage lines. It has such characteristics as safety, reliability, ease and flexibility of control. The electrical and mechanical characteristics of the product comply with the requirements of the national standard GB1985 "High-voltage disconnectors and earthing disconnectors for alternating current." Widely used as the main switching device as part of frame-type reactive power compensation devices at substations.
Technical standards applicable to this type of product:
◆ GB1985-2014 “High-voltage disconnectors and AC earthing disconnectors”
◆ GB/T 11022-2011 “General technical requirements for high-voltage distribution equipment and control devices”
◆ IEC129 "AC disconnectors and earthing switches"
| Type | Rated voltage, kV | Rated current, A | Thermal resistance current, kA/4s | Dynamic current, kA | Power frequency test voltage, kV/60s | Test lightning impulse voltage, kV | ||
| Relative to ground / between phases | Between open contacts | Relative to ground / between phases | Between open contacts | |||||
| GW4 | 12 | 630 | 20 | 50 | 42 | 48 | 75 | 85 |
| GW4 | 12 | 1250 | 31.5 | 80 | ||||
| GW4 | 12 | 1600 | 31.5 | 80 | ||||
| GW4 | 12 | 2000 | 40 | 100 | ||||
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