Description

Product Summary

GCK low Voltage withdrawable switchgear consists of two parts, power distribution center (PC Panel) and motor control center (MCC Panel). It is universally applied in power plants, city substations, industry and mine corporations, etc., with rated voltage 400V, max operating current 4000A and rated frequency 50/60Hz. It can be applied as power conversion distribution control of the power distribution equipment like power distribution, electromotor control, lighting, etc.

This switchgear is in accordance with international standard IEC439 and national standard GB725 1(low Voltage switchgear and control gear assemblies). The main characteristics are high breaking capacity, good performance of dynamic & thermal stability, advanced and reasonable configuration, realistic electric scheme, and strong seriation and generality. All kinds of scheme units are combined arbitrarily. A cabinet has more loops to be accommodated, which has many advantages like saving area, beauty. appearance, high degrees of Protection, safety and reliability, and convenient maintenance, etc.

Environmental Conditions

Installation Site: Indoor
Altitude: No more than 2000m.
Earthquake Intensity: No more than 8 degrees.
Ambient Temperature: No more than +40℃ and no less than – 15℃.Average temperature is no more than +35℃ within 24 hours.
Relative Humidity: the average daily value is no more than 95%, the average monthly value is no more than 90%.
Installation locations: without fire, explosion danger, serious pollution, chemical corrosion and violent vibration.

Product Features

The basic frame of this series of products is a combination assembly structure, All the structural components of the rack can be connected to each other through screws to form a basic frame, Then, a complete switchgear can be assembled according to the needs of the door, baffle, partition board, drawer, mounting bracket, busbar and electrical components.
The frame adopts special-shaped steel and is positioned by three dimensional plates: bolt connection without welding structure, so as to avoid welding deformation and stress, and improve installation accuracy. The installation holes of frames and components change according to modulus E=25mm.
The internal structure is galvanized, and the surface of the panel, the side plate and the panel are treated by acid washing and phosphating, and electrostatic epoxy powder is used.
In the power center (PC) incoming cabinet, the top is the horizontal busbar area, and the lower part of the horizontal busbar is the circuit breaker room.

Parameter

Technical Data

No.	Content		Unit	Value
1	Rated Operation Voltage		V	400
2	Rated Insulation Voltage		V	690
3	Rated Frequency		Hz	50/60
4	Main Bus-Bar	Rated Current	A	≤4000
		Rated Short-time Withstand Current	kA	≤80
		Rated Peak Withstand Current	kA	≤176
5	Distribution Bus	Rated Current	A	≤1500
		Rated Short-time Withstand Current	kA	≤50
		Rated Peak Withstand Current	kA	≤105
6	Frequency Withstand Voltage in 1min of Aux Control Loop		kV	1.89
7	Rated impulse Withstand Voltage		kV	8
8	Degrass of Protection		IP	IP40
9	Electrical Clearance		mm	≥10
10	Creepage Distance		mm	≥12.5
11	Overvoltage Level			Ⅲ/IV
12	Pollution Degree			3

Schematic diagram of structure

Note:

The minimum width of the drawer outlet cabinet is 600mm.
Cabinet depth 800，1000mm can be selected.

Low Voltage Switchgear

CAGCK Low Voltage Withdrawable Switchgear