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Protection & monitoring: DGPT2, Buchholz, thermometers

A failed relay is an unsupervised transformer. Protection and monitoring devices are replaced like-for-like or by qualified equivalence — without idling the unit longer than necessary.

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DGPT2 relay

Protection for hermetically sealed transformers: gas, pressure and temperature detection, two thresholds, alarm and trip contacts.

gas · pressure · temp.2 thresholds

Buchholz relay

For breathing units with a conservator: double float, alarm and trip contacts.

DN 25/50/80double float

Dial thermometer

Ø 100 mm dial, bulb and capillary, drag pointer, 2 or 4 changeover contacts.

0–120 / 160 °C2–4 contacts

Oil level indicator

Float type, remote dial, low / high level contacts.

float typemin/max contacts

Sensors & relays for dry-types

PT100 or PTC sensors embedded in the windings, multichannel monitoring relays.

PT100 / PTC2–4 channels

Pressure relief valve

Rapid-discharge relief valve, with or without signalling contact.

set to tankNO/NC contact
Specify it right: unit type (hermetic, conservator, dry-type), brand and model of the relay in place (photo), connection diameter, number and nature of contacts.
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