Choose your region and language

Global
Argentina
Australia
Austria
Bahrain
Brazil
Bulgaria
Canada
Chile
China
Colombia
Czech Republik
Denmark
Egypt and North Africa
Finland
France
Germany
Greece
Hungary
India
Indonesia
Iraq
Ireland
Italy
Japan
Jordan
Kuwait
Malaysia
Mexico
New Zealand
Norway
Oman
Pakistan
Panama
Peru
Philippines
Poland
Portugal
Qatar
Saudi Arabia
Singapore
Slovakia
South Africa
South Korea
Spain
Sweden
Switzerland
Taiwan, China
Thailand
Türkiye
Ukraine
United Arab Emirates
United Kingdom
United States
Vietnam
English
Spanish
English
German
English
Portuguese
English
English
French
Spanish
Chinese
Spanish
English
English
English
English
French
German
English
English
English
English
English
English
Italian
Japanese
English
English
English
Spanish
English
English
English
English
Spanish
Spanish
English
Polish
English
English
English
English
English
English
English
Spanish
Swedish
German
French
Italian
English
English
English
English
English
English
English
English
Go

Menu

Disconnecting Circuit Breaker DCB up to 550 kV

The smart choice for maximum availability at a low total cost

A Disconnecting Circuit Breaker (DCB) provides the functionality of a circuit breaker and a disconnector combined in a single unit.

Without the need for separate disconnectors, up to 75 percent less space is required. Unplanned outages are reduced by up to 70 percent, which means a low life-cycle cost.

Hitachi Energy'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 and 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 Hitachi Energy?

  • Longest experience and largest installed base with DCB, 3000 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 Hitachi Energy industry and application support
  • Global service organization, local everywhere

Brief performance data

DCB type   DCB LTB72.5-145D1* DCB HPL170-300B1 DCB HPL362-550B2
Rated voltage kV  72.5-145 170-300 362-550 
Rated frequency Hz 50/60
Rated continuous current A 3150** 4000**
Rated short-circuit breaking current kA 40 50 63

  * Available with a Current Transformer (CT) bracket
** Standard values as per IEC. Additional data on request.

power plant engineer for substation

Contact us

Submit your enquiry and we will contact you