襄阳MNS low-voltage withdrawable switchgear

The MNS type low-voltage withdrawable switchgear (hereinafter referred to as switchgear) is developed by our company with reference to and comprehensive improvement of ABB's MNS series low-voltage switchgear in Switzerland. It is currently one of the most advanced low-voltage withdrawable switchgears in China. This product is composed of standardized and serialized modules, and the drawer has a reliable mechanical interlock device, making it safer and more reliable for users.

Product Description

Product Overview

The MNS type low-voltage withdrawable switchgear (hereinafter referred to as switchgear) is developed by our company based on the MNS series low-voltage switchgear of ABB Switzerland and further improved. It is currently one of the most advanced low-voltage withdrawable switchgears in China. This product is composed of standardized and serialized modules, and the drawers have reliable mechanical interlocking devices, making it safer and more reliable for users.

This switchgear is suitable for AC 50(60)Hz, rated insulation voltage and operating voltage of 380(400)V, 660V, rated current of 5000A and below three-phase five-wire power supply.

The system can be used in power plants, substations, industrial and mining enterprises, large buildings and hotels, airports, docks, and communication centers such as broadcasting and television, to control power generation, transmission and distribution, power conversion, and power consumption equipment, and to perform reactive power compensation on its main busbars through capacitor compensation cabinets.

 

Main Technical Parameters

Standards and Technical Specifications

GB7251.1-2005 Low-voltage switchgear and controlgear (TTA)

JB/T9661-1999 Low-voltage withdrawable switchgear

Overvoltage Category

IVII

Pollution Degree

3

Rated operating voltage (Ue)(V)

380(660)

Rated insulation voltage (Ui)(V)

660(1000)

Rated frequency (Hz)

50(60)

Horizontal Busbar

 

Rated Current

5000A、4000A、3150A、2500A、2000A、630A

Rated short-time withstand current (1cw)(kA)

50、65、80(1s effective value)

Rated peak withstand current (1pk)(kA

105、140、176(0.1S maximum value)

Vertical Busbar

 

Rated maximum operating current

≤1000A

Rated short-time withstand current

50kA

Rated peak withstand current

105kA

Enclosure protection level

IP30IP40(Special instructions)