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Conventional liquid level indicators

Unexpected or accidental oil leakages can occur in a transformer’s lifetime. Clear and visible indication of the oil or liquid level is provided by dedicated dials suitable for oil-filled transformers, on-load tap changers, conservator tanks, and other components.

Hitachi Energy's liquid level indicators give off an alarm if the fluid reaches the minimum or maximum preset values.


Product scope

  • Liquid-filled distribution and power transformers with or without conservator
  • A conservator with rubber bag
  • On-load tap-changer applications


Why Hitachi Energy

  • More than 50 years of experience in manufacturing transformer components
  • Comprehensive product portfolio for distribution and power transformers
  • New generation of liquid level indicators with digital and analog output (eDevices)
  • Global after-sales and customer support network   
Conventional liquid level indicators

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