DAQO GROUP



MB(S)
Metal-enclosed DC Switchgear

DC traction networks require safe powerdistribution and reliable control systems. The MB panel conta...

Metal-enclosed DC Switchgear

DC traction networks require safe powerdistribution and reliable control systems. The MB panel contains proventechnology components and is based on the Secheron traction DC protectionexperience. The DC switchgear serves as control and protection equipment forthe power distribution, and consists of incoming cubicle (also called positivecubicle), feeder cubicle and negative cubicle etc.

 

Features

1. High protection level and perfectsolution. 


2. Lightweight and smooth push type trolleywith HSCB, breaker command and LTD is easy for maintenance. 


3. Disconnecting or reversing switches withsafety interlock are accessible easily and convenient for operation andmaintenance from the cubicle front or rear side. 


4. The integration of protection andcontrol system allows both remote control and monitoring from the 
tractionnetwork control center. 


5. New high-speed connection techniquemakes the connection between cubicles more convenient.

 

Rated service current 2600A 4000A 6000A 2600A 4000A 
Rated service voltage 900V/1800V 900V/1800V 900V/1800V 3600V 3600V 
Rated power-frequency withstand voltage 5.5 kV/8.3 kV 5.5 kV/8.3 kV 5.5 kV/8.3 kV 14 kV 14 kV 
Rated insulating voltage 1800V/3000V 1800V/3000V 1800V/3000V 4800V 4800V 
Rated short-circuit current TNc 100 ms (900V80/113 125/178 125/178   
TNc 31.5 ms (1800V63/90 80/113 80/113   
TNc 31.5 ms (3600V40/57 40/57 
Temperature -15+40℃(Special request according to the negotiation between two parties)
Protection degree IP20/IP30/ IP41 
Overall dimension 500/800×1400×2200 mm 
Weight 500 kg 550 kg 650 kg 550 kg 700 kg 
Conformity to standards IEC61992/EN50123/GB/T25890


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