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Live Tank Circuit Breaker - LTA 72.5 kV

The LTA 72D1 with CO2 is the first breaker in a new technology platform for live tank breakers using an alternative to SF6

The new breaker uses CO2 as the insulating and arc extinguishing medium, substituting SF6 gas which has a higher global warming potential. 

Removing the SF6 has been the predominant factor in reducing CO2 equivalent emissions by 18% over the products life cycle. 

The LTA 72D1 uses the same type of mechanical spring drives as applied in ABB’s SF6 LTB product range. This provides our customers with IEC Class M2, 10,000 operation lifetime drives. 

The LTA is also available as a Disconnecting Circuit Breaker, where the disconnecting function is integrated in the breaker.
  

Applications

  • Line, transformer, reactor and capacitor switching
  • Switching of harmonic filters
  • Why ABB?

  • Possibility to fulfill company environmental strategy
  • Possibility to go for solution with less environmental impact 
  • World leading technology knowledge
  • Global service organization, local everywhere
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    Brief performance data

    LTA 
    Rated voltage kV 72.5 - 84
    Rated current A 2750
    Rated Breaking current kA 31.5
    Ambient temperatures °C -50 to +50
    Break time  ms  ≤50 
    Operation-type    3-pole
    Rated power frequency  kV  150 
     Type of insulator    Polymeric
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