Global site

ABB's website uses cookies. By staying here you are agreeing to our use of cookies. Learn more

Dead Tank Circuit Breaker 550 kV

Flexible design platform for a wide range of applications


The 550 kV Dead Tank Breakers can be equipped with pre-insertion resistors and are tested for high transient recovery voltage (TRV) performance, high mechanical endurance and switching capabilities.  Installation time is greatly reduced due to control wire bundling.

For shunt reactor protection, ABB now offers Dead Tank Breakers with applied Metal Oxide Varistors (MOVs).  This solution increases the reliability of the breaker by limiting damaging overvoltages.  Read more about it here or watch the video here.

Applications

  • Line, transformer, reactor and capacitor switching
  • Point-on-wave switching
  • High seismic applications
  • High altitude applications

Why ABB?

  • Flexible design platform provides options for pre-insertion resistors and various height-to-live part configurations
  • Short installation time due to factory pre-assembly 
  • High TRV withstand
  • High rated current options
  • 10 year warranty on the HMB operating mechanism
  • Widely installed base in all environments and applications
  • Global service organization, local everywhere
 Brief performance data
DTB 550 kV 550PM 550PMov 
Rated voltage kV 550 550 
Short-circuit breaking current kA 40-63 40-63 
Rated current A 5000 5000 
Break time cycles 2
Operation type Single-pole operated Single-pole operated 
Reactor protection   No MOV MOV

Are you looking for support or purchase information?

Get to know more

 

Loading documents

Related offering