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Horizontal double break disconnector GW56

Maximum reliability and minimal maintenance

The GW56 disconnectors are available up to 245 kV, 4000 A and 50 kA. These disconnectors have a low friction design and offer minimized contact resistance. They are equipped with interlocking for reliability in extreme conditions. Some other important features of these disconnectors are:

  • Contact plates with self-cleansing capability
  • Contact pressure kept unchanged by stainless springs
  • Superior design of mechanical interlock
  • Ice breaking capacity

Applications

The horizontal double break disconnector is suitable for substations with limited phase space and installations with low vertical clearance.
 

Why Hitachi Energy?

  • Worldwide experience
  • Maximum reliability and minimal maintenance
  • Energy efficient solution
  • Easy and quick erection
  • Reliable and smooth operation
  • Suitable for wide range of environmental conditions
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Brief performance data

Rated voltage (kV) up to 245
Rated current (A) up to 4000
Short time withstand current (kA) up to 50
Power frequency withstand voltage (kV)
· against earth 460
· across isolating distance 530
Lightning impulse withstand voltage (kV)
· against earth 1050
· across isolating distance 1200
power plant engineer for substation

Contact us

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