Electric, Power & Renewable Energy Indonesia 2023German Exhibitors EMB GmbH
EMB GmbH

EMB GmbH

www.emb-online.de

About us

The company EMB GmbH provides more than 60 years experience in producing Buchholz relays, monitoring relays and other protection devices for liquidcooled and liquid insulated appliances. It ranks among the most distinguished manufacturers of this type equipment.

Our staff of highly-qualified engineers and experienced skilled workers help ensure we produce top-quality, high-precision equipment.

The casings are machined on modern CNC-controlled machine tools. All products are subjected to a final inspection, when all functions are checked using special test equipment.

Profound experience and expertise are a sound basis for high product quality. Extensive references from reputed tap changers and transformer manufacturers as well as other users are proof of the high qualitative level of the products.

The company is certified to DIN EN ISO 9001:2015 and approved for AEO F.

Address

EMB GmbH
Otto-von-Guericke-Allee 12
39179 Barleben
Germany

Phone:  +49 392 03790

Products & Services

  • Transformer protection relay (Buchholz principle) - Buchholz relay

  • Buchholz relay NM series

  • Monitoring relay for tap changers

  • Air cell failure relais

  • Additional devices for Buchholz relays

  • Protection devices for hemetically sealed transformers

  • Further transformer accessories

SMART Buchholz Relay

Buchholz relay with extended functions by means of sensors: Capacitive sensor-NM Series - For analogue measuring of gas accumulation - Reliable & continuous monitoring of Buchholz gases for early fault detection
Moisture sensor - Constant monitoring of humidity in oil - For early detection & preventive measuring - Output of measured values via analogue & digital signals
Temperature sensor - For continuous oil temperature monitoring - Available separately or combined with humidity sensor
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SMART Buchholz Relay

Monitoring Relay for Tap Changers

The monitoring relay for tap changers, also known as the protection relay for tap changers or oil flow relay, is a monitoring device for insulating liquid-filled tap changers with conservators. It protects the tap changer and the transformer from damage. The monitoring relay responds to excessive oil flow in the direction of the conservator and generates a signal disconnecting the tap changer and the transformer immediately from voltage supply.
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Monitoring Relay ÜRF

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