CHARACTERISTICS :

Power transformer usually prevent contact of transformer oil with air (that contains water due to humidity) using a rubber bag fitted inside conservator tank. If there is an intrusion of air inside the conservator (due i.e. to a microscopic accident inside rubber bag) this must be detected. The CPR has been specially developed in order to detect this kind of failure. The relay is designed in a way that it is able to collect the gas inside himself and give an electric signal as soon as the gas accumulated reaches a predetermined value.

CATALOGUES:

CONSERVATOR PROTECTION RELAY.pdf