FIELD: electricity.
SUBSTANCE: DC measurement on a substation is carried out on the basis of the Faraday effect in one or more turns of a measurement optic fibre (7), placed into a base (5a) of a tube bushing (5), stretching via a wall (3a) of a room (3). Such arrangement is used due to the fact that the base (5a) of the tube bushing (5) is at zero potential, which facilitates works of installation and servicing.
EFFECT: simplified installation and operation.
30 cl, 10 dwg
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