GCS type low-voltage withdrawable switchgear (hereinafter referred to as the device) is a low-voltage withdrawable switchgear designed and developed by two joint design teams according to the requirements of the industry authorities, the majority of power users and design units, which is in line with the national conditions, has higher technical performance indicators, can adapt to the development needs of the power market and can compete with the existing imported products.
General:
The device has been widely used by power users. The device is suitable for power plant, petroleum, chemical, metallurgy, textile, high-rise building and other industries of power distribution system. In large power plants, petrochemical systems and other places with a high degree of automation and requiring computer interface, As a three-phase AC frequency of 50(60)Hz, rated operating voltage of 380(400, 660)V, rated current of 4000A and below in the power supply system, power distribution, motor centralized control, reactive power compensation for use in low-voltage power distribution devices designed to meet the following standards :IEC439-1 low-voltage switchgear and control equipment GB 7251 Low voltage switchgear JB/T9661 Low voltage withdrawable switchgear
Service Environment
Ambient air temperature is not higher than +40℃, not lower than -5℃. The average temperature within 24 hours must not be higher than +35 ° C. If it is higher than +35 ° C, reduce the operating capacity according to the actual conditions.
For indoor use, the altitude of the use place shall not exceed 2000m.
The relative humidity of the surrounding air does not exceed 50% at the maximum temperature of +40 ° C, and a larger relative humidity is allowed at lower temperatures: such as 90% at +20 ° C, the effect of condensation that may occur occasionally due to changes in temperature should be taken into account.
The tilt of the vertical plane when the device is installed does not exceed 5%, and the whole set of cabinets is relatively flat (in line with GBJ232-90 standard).
The device shall be installed in a place free from violent vibration and shock and insufficient to cause undue corrosion of electrical components.
When the user has special requirements, it can be negotiated with the manufacturer.
Key Feature
The capacitor compensation cabinet is designed
Reactive power compensation is used
Technical Data
Name | Unit | Data |
Rated voltage of main circuit | V | AC380(400)、(600) |
Rated voltage of auxiliary circuit | V | AC220、380(400)DC110、220 |
Rated frequency | Hz | 50(60) |
Rated insulation voltage | V | 400(66a) |
Horizontal bus | ≤4000 | |
Rated current/Vertical bus bar | A/MCC | 1000 |
Bus bar rated short-time withstand current | kA/1s | 50、80 |
Bus rated peak withstand current | kA/0.1s | 105、176 |
Main circuit | 2500 | |
Power frequency test voltage | V/Auxiliary circuit | 1760 |
Three-phase four-wire system | A.B.C.PEN | |
Bus bar | Three-phase five-wire system | A.B.C.PEN |
Class of protection | IP30、IP40 |
Drawing
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Add: Zhejiang Province, China Wenzhou, Yueqing