Disconnectors
In a power network, a disconnector is used to ensure that an electrical equipment is completely de-energized and isolated for service or maintenance. Hitachi Energy offers a wide range of reliable and energy efficient disconnectors ranging from 72.5 kV to 800 kV.

Maximum reliability and minimal maintenance

  • Hitachi Energy offers a wide range of reliable and energy efficient disconnectors to meet the requirements of different sites and network conditions. The disconnectors range from 72.5 kV to 550 kV.  Our disconnectors are designed as per IEC 62271-102 and IEC 62271-1 standards. Also, other standards and regulations (eg, IEEE, GOST, and GB) can be met on request. Accredited testing laboratories carry out type tests on the disconnectors in accordance with the latest regulations. The world-class quality of disconnectors is ensured through comprehensive electrical and mechanical routine tests on the poles and operating mechanism of each disconnector. 

Applications

  • Isolation of power equipment from the network 
  • For switching very small currents or where no significant change in voltage occurs across the terminals

Why Hitachi Energy?

  • Worldwide experience in various kinds of environments  
  • Enduring mechanical and electrical performance 
  • Requiring minimal maintenance service with the highest records of operational reliability
  • Continuous innovation and development

Center-break disconnectors

Horizontal center break disconnector GW55

Horizontal center break disconnector SDF

Horizontal V-type center break disconnector DDHV

Double-break disconnectors

Double-break disconnector GW56

Double-break disconnector eDB

Horizontal knee disconnectors

Horizontal knee disconnector DDK

Horizontal knee disconnector GW57

Pantograph disconnectors

Pantograph disconnector GW54

Vertical-break disconnectors

Vertical-break disconnector DDV245

Semi-pantograph disconnectors

Semi-pantograph disconnector DSSP