CEDASPE® ET
Italian Standard (UNEL) Buchholz relay for liquid-immersed power transformers
Buchholz relays detect faults and minimize the propagation of any damage which might occur within liquid-filled transformers. Short circuit faults such as inter-turn faults, incipient winding faults and core faults may occur due to overheating, bad connections and ageing. The Buchholz relay senses such faults and closes the alarm circuit. Its function is based on the fact that an electrical fault inside the transformer tank is accompanied by the generation of gas; if the fault is severe enough, it will be accompanied by an oil surge from the tank to the conservator.
Your Advantages at a Glance
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Waterproof - IP 65 protection degree
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Large inspection window
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Inlet diameter: 25 mm, 50 mm, 75 mm and 100 mm
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Suitable for replacing similar existing and old Italian modelsof other brands
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Connection executions: flanged or threaded
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Wiring diagrams availability: from 1 up to 4 contacts
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Oil flow rate: from 0,65 m/s up to 2 m/s
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Manufactured according to UNEL (Italian) Standard
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