Escolha sua região e idioma

Ir

Menu

Dead Tank Circuit Breaker 123-170 kV

Compact and preset from factory for rapid installation

The 123-170 kV Dead Tank Breakers feature a small footprint and a single piece interrupter with factory aligned contacts that reduce installation and maintenance costs.
 

Applications

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

Why Hitachi Energy?

  • Enhanced safety and simplified maintenance
  • Rated up to 70 kA with no external line to ground capacitors
  • Spring-spring operating mechanism available up to 40 kA 
  • Slipover current transformers that are added or removed without disassembly, reducing maintenance downtime and eliminating contamination risk
  • Widely installed base in all environments and applications
  • Global service organization, local everywhere
  • 10 year warranty on the HMB operating mechanism for 63 kA breakers

Brief performance data

DTB up to 170 kV   145PM40-SD 145PM63-B 145PMI
Rated voltage kV 123-145 123-145 123-145, 170
Short-circuit breaking current* kA 40 50-63 40-63, 40-50
Rated current A 3150 4000 4000
Break time cycles 3 3 3
Closing and latching current kA 104 130-164 104-164, 104-130
Lightning impulse withstand level - LIWL kV 650 550, 650 550, 650, 750
Operation type   Three-pole operated Three-pole operated Single-pole operated
Operating mechanism   FSA1 HMB-2 HMB-1 (3)
MOV   No standard MOV** External MOV No standard MOV**
Service conditions        
- Ambient temperature* °C -30 to +40 -30 to +40 -30 to +40
- Design altitude* m 1000 1000 1000

* Other options available, contact factory for additional information.
** Available by request.

power plant engineer for substation
Contact us

Submit your enquiry and we will contact you