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GCS low-pressure draw-out switchgear
The GCS type low-voltage withdrawable switchgear (hereinafter referred to as the device) is designed and developed by two joint design teams in accordance with the requirements of industry authorities
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People's Power
Transformer
Substation
Power equipment
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Product Description
Overview
The GCS type low-voltage withdrawable switchgear (hereinafter referred to as the device) is designed and developed by two joint design teams in accordance with the requirements of industry authorities, a wide range of power users, and design units. It meets national conditions, has high technical performance indicators, can adapt to the needs of power market development, and can compete with existing imported products. This device has been widely selected by power users.
The device is suitable for distribution systems in industries such as power plants, petroleum, chemical, metallurgy, textiles, and high-rise buildings. In large power plants and highly automated petrochemical systems that require computer interfaces, it operates at a three-phase AC frequency of 50 (60) Hz. The rated working voltage is 380V (400), (600) with a rated current of 4000A and below for low-voltage complete distribution devices used in power plants and power supply systems for distribution, centralized motor control, and reactive power compensation.
Structural Features
· Ambient air temperature: not exceeding +40℃ and not lower than -5℃. The average temperature within 24 hours must not exceed +35℃.
· Operating environment: indoor
· Altitude: 2000m
· Ambient air relative humidity: not exceeding 50% when the maximum temperature is +40℃; at lower temperatures, higher relative humidity is allowed: for example, at +20℃ it can be 90%. Consideration should be given to the occasional condensation effects due to temperature changes.
· Vertical surface inclination: not exceeding 5%.
Main Technical Parameters
| Item | Technical Parameters | ||||
| Rated voltage of main circuit (V) | AC 380 (400), (660) | Rated short-time withstand current of busbar (KA/1S) | 50,80 | ||
| Rated voltage of auxiliary circuit (V) | AC 220, 380 (400) | Rated peak withstand current of busbar (KA/1S) | 105,176 | ||
| Rated frequency (HZ) | 50 (60) | Power frequency test voltage | Main circuit | 25000 | |
| Rated insulation voltage (V) | 660 (1000) | Auxiliary circuit | 2000 | ||
| Rated current (A) | Horizontal connection | Not exceeding 4000 | Busbar | Three-phase four-wire system | A.B.C.PEN |
| Vertical busbar | 600-2000 | Three-phase five-wire system | A.B.C.PE.N | ||
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