Outline

GCS low-voltage withdrawable switchgear (hereinafter referred to as the device) is a low-voltage withdrawable switchgear developed by the joint design team of the former Ministry of Machinery and the Ministry of Electric Power in accordance with the requirements of the industry competent departments, the majority of power users and design units, which meets the national conditions, has high technical performance indicators, can adapt to the development needs of the power market and can compete with the existing imported products.

This device is suitable for power distribution system in power plant, petroleum, chemical industry, metallurgy, textile, high-rise building and other industries. In large-scale power plants, petrochemical systems and other places with high automation degree, which require computer interface, it is used as a low-voltage jacketed power distribution device for power distribution, motor centralized control and reactive power compensation in power generation and power supply systems with three-phase AC 50(60) Hz, rated working voltage 380V and rated current of 4000A or less. 

The device meets IEC439-1 and GB7251.1 standards.

Main feature

◇ Main framework adopts 8MF bar seel. Both sides of bar steel is intalld with φ9.2mm mounting hole with modulus 20mm and 100mm. Inner istallation is flexible and easy；

◇ Two types of assembly form design for main framework, full assembly structure and partial (side frame and cross rail) welding structure for user selection；

◇ Each function compartment of device is separated mutually. The compartments are divided into function unit compartment, bus bar compartment and cable compartment. Each one has relative independent function；

◇ Horizontal bus bar adopts cuabinet back level placed array puttern for enhancing the capacity of resisting electrodynamic force for bus bar. It is the basic measure for obtaining high short circuitstrength capacity for main circuit；

◇ Cable compartment design makes cable outlet and inlet up and down convenient.

The main technical parameters

Use environmental conditions

◇ Ambient air temperature: -5℃ ~+40℃ and the average temperature should not exceed +35℃ in 24h；

◇ Relative humidity should not exceed 50% at max temperature. Higher relative humidity is allowed at lower temperature. Ex.90% at +20℃ . But in view of the temperature change, it is possible that moderate dews will produce casually；

◇ Altitude above sea level should not exceed 2000M；

◇ Installation gradient not exceed 5°；

◇ Indoor without dust, corrosive gas and rain water attack.