Live Tank Circuit Breaker HPL B up to 1100 kV

This robust breaker delivers reliably in the most extreme conditions. With the highest ratings in the industry, the breaker is most suitable for applications requiring high short-circuit currents and for HVDC. HPL B can handle 63 kA without the need for grading capacitors and 80 kA with only two breaking elements. 
 
The mechanically robust design gives the HPL B the ability to withstand high seismic forces, which makes it ideal for earthquake-prone areas. It is also a suitable solution for harsh conditions, such as extreme temperatures and high altitudes. 
 
The product has a proven lifetime exceeding 30 years and meets M2 mechanical class for 10,000 operations. HPL B is designed and type tested in accordance with international standards IEC and ANSI is also tested to national standards such as GOST, DL, DIN.  
 
HPL B is available up to 1100 kV as a circuit breaker and up to 550 kV as a disconnecting circuit breaker, where the disconnecting circuit is integrated into the breaker.

• High altitude applications

• High seismic requirement applications

• Line, transformer, reactor and capacitor switching

• Switching of harmonic filters 

• Compact design and easy installation 

• High mechanical and electrical endurance 

• Low failure rate 

• High seismic capability   

• Proven performance in both high and low temperatures 

• Low environmental impact 

• Meets a large variety of challenging requirements 

• Available with polymeric insulators for high reliability and availability   

• Global service organization, local everywhere