GCS Low-voltage withdrawable switchgear

Overview

The GCS device is suitable for power distribution systems in industries such as power plants, petroleum,chemicals, metallurgy, textiles, and high-risebuildings. In large-scale power plants, petrochemical systems, and other highly automated environments requiring computer interface capabitiesthe GCS device serves as a low-voltage switchgear assembly for distribution, motor centralized contro, and reactive power compensation in powergeneration and supply systems with a three-phase Ac frequency of 50(60) Hz, a rated operating voltage of 380V (400V), (660V),and a rated currenof 4000A or below.

The design of the equipment complies with the following standards;

IEC 439-1 Low-voltage switchgear and control gear assemblies;

GB 7251 Low-voltage switchgear assemblies;

ZBK 360001 Low-voltage withdrawable switchgear assemblies.

Model Meaning

GCS Low-voltage withdrawable switchgear Model

Main Technical Parameters

Item		Argument
Main circuit rated voltage(V)		AC380(400),(660)
Auxiliary circuit rated voltage(V)		AC220,380(400)	DC110/220
Rated frequency(Hz)		50(60)
Rated insulation voltage(V)		660(1000)
Ratedcurrent(A)	Horizontal bus	≤4000
	VerticalBus(MCC)	1000
Bus rated short-time withstand current(kA/1s)		50,80
Bus rated peak withstand current(kA/0.1s)		105,176
Power frequency test voltage (V/1min)	Main circuit	2500
	Auxiliary circuit	1760
Bus bar	Three-phase four-wiresystem	A,B,C,PEN
	Three-phase five-wiresystem	A,B,C,PE,N
Class of protection		IP30,IP40

Main Structure

▪ The main frame uses 8MF-type open-section steel, with instalation holes on both sides of the steel with module sizes of 20mm and 100mm and adiameter of Ф9.2mm, allowing for flexible and convenient internal installation;

▪ The main frame assembly design offers two options: a fully assembled structure and a partialy welded structure (side frames and crossbeams) allowing users to choose according to their needs;

▪ The functional compartments of the device are mutually isolated, divided into functional unit compartments, busbar compartments, and cablecompartments.Each compartment operates independently.