Industrial Automation Magazine India

Disconnecting Circuit Breaker (DCB) 72.5 - 550 kV - Air-insulated switchgear

Published on : Tuesday 30-11--0001

Without the need for separate disconnectors, up to 75 percent less space is required. Unplanned outages are reduced by up to 70 percent according Cigré report on high-voltage circuit breakers reliability, which means a low life-cycle cost.

ABB’s DCB is ideal for all substation applications – indoor, outdoor, greenfield or refurbishment. It offers the highest level of safety with the easily operated robust mechanical and electrical interlocking that supports the five golden safety steps for high voltage operations (interrupt, isolate, lock, voltage check, earth). The DCB is compliant with IEC standard 62271-108 for disconnecting circuit breakers.

 

Applications

• Line, transformer, reactor and capacitor switching
• Switching of harmonic filters
• Switching in HVDC-applications
• Switching in SVC-applications

Why ABB?

• Longest experience and largest installed base with DCB,1600 in service
• The most complete product portfolio up to 550 kV, 63 kA
• Low environmental impact – low global warming impact with less equipment, lower losses etc
• Local and global ABB industry and application support
• Global service organization, local everywhere

Specifications:

		LTB DCB 72.5	LTB DCB 145	HPL DCB 170 - 245	HPL DCB 362 - 550
Rated voltage	kV	72.5	145	170-245	362-550
Rated current	A	3150	3150	4000	4000
Rated breaking current	kA	40	40	50	63
Ambient temperature	oC	-50  to +50	-50 to +50	-50 to +50	-50 to +50

It is used in Electrical, Power Industries.

ABB India Limited, Tel:02227402221, Email:[email protected]