GCS low voltage withdrawable switchgear
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GCS low-voltage withdrawable switchgear （hereinafter referred to as the device） is developed by the former Ministry of Machinery and the joint design team of the Ministry of Electric Power according to the requirements of the competent department of the industry, the majority of power users and design units, in line with national conditions, with high technical performance indicators, able to adapt A low-voltage withdrawable switchgear that requires the development of the electricity market and can compete with existing imported products. The device passed two co-hosted appraisals in Shanghai in July 1996 and was valued and affirmed by the manufacturing and manufacturing units and the power usage department.
The device is suitable for power distribution systems in power plants, petroleum, chemical, metallurgy, textile, high-rise buildings and other industries. In large-scale power plants, petrochemical systems, etc., where automation is high, and the interface with the computer is required, as a three-phase AC 50 （60） Hz, rated working voltage 380V, rated current 4000A and below, power distribution and power supply in the power supply system Low-voltage power distribution unit for centralized control and reactive power compensation. The device complies with the I EC439-I and GB7251.1-97 standards.
The main frame adopts 8MF steel. The two sides of the steel have （1） 9.2mm mounting holes with modulus 20mm and 100mm respectively. The internal installation is flexible and convenient.
The main frame assembly form is designed in two types, a fully assembled structure and a part （side frame and beam） welded structure for the user to choose.
The functional rooms of the device are isolated from each other, and the compartments are divided into functional unit rooms, busbar rooms and cable rooms. The role of each chamber is relatively independent.
The horizontal main busbar is arranged in a flat arrangement behind the cabinet to enhance the busbar's ability to resist electric power, which is the basic measure for the main circuit of the device to have high short-circuit strength.
The cable compartment is designed to make it easy to access the cable up and down.
Normal use environmental conditions
The ambient air temperature is not higher than +40 ° C, not lower than 5 ° C, and the average temperature within 24 h is not higher than +35 ° C.
Relative humidity is not more than 50% at the highest temperature, and higher relative humidity is allowed at lower temperatures, for example, 90% at +20 °C, but due to temperature changes, it is possible to occasionally produce moderate condensation. .
The altitude does not exceed 2000 meters.
The installation tilt does not exceed 5.
No dust, corrosive gas and rain soaked indoors.
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