Transformers in a set with signalling device (USZ-3S) or other similar device are designed to determine the damaged power line (6-10) kV with a single-phase short circuit in a network with isolated and compensated neutral, as well as for control of short-circuit modes of separate cores of three-phase cable by transformation of zero-sequence currents arising thereby in interaction with microprocessor protection of SEPAM type or any other type as agreed with the customer.
Transformers are manufactured in climatic version UHL2 or T2 according to GOST 15150.
Zero-sequence current transformers can be used in (3-110) kV switchgears, provided that the main insulation between the current-carrying conductors of the cable and the secondary winding of the transformer is provided by cable insulation or air gap.
The operating position is any.
Transformers correspond to the group of operating conditions M6 according to GOST 17516.1..
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