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Transformer outages have a considerable impact on the power grid. Certain phenomena contribute to insulation degradation during operation and generate dangerous gas and oil flow inside the tank. The Hitachi Energy Buchholz Relays are designed to monitor and rapidly react to internal gas accumulation and oil flow changes. The Buccholz Relays provide a prompt alarm or trip signal, allowing the operator to shutdown the transformer quickly and prevent further damage.


Key Features

  • Flexibility in product sizes
  • Robust design and field-proven reliability
  • Precision and tested quality
  • Quick Quotes and Deliveries

Precision and Testing

Quality is a priority for Hitachi Energy. Hitachi Energy offers technology leadership backed by a proven record of addressing diverse challenges and improving standards. Our product portfolio is the result of research, manufacturing, and servicing transformers, making us unique in the industry. 

Every Hitachi Energy Buchholz Relay is tested for: 

  • Leakage test
  • Electrical test
  • Functional test

Quick Quotes and Deliveries

We offer standard prices and quick delivery times for our products listed in Our Offerings. If required, our engineers can also provide customized solutions for your application.

Hitachi Energy offers a comprehensive portfolio of transformer accessories and services to meet our customers' evolving needs. We can bundle multiple accessories together so that transformer manufacturers can focus on delivering to their customers on time and without hassle.

Buchholz Relays

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Buchholz Relays
Buchholz Relays

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Our team is available 24/7.