Zero Sequence Current Transformers for Ground Fault Protection - TZLM-100 and TZLM-450 Models

Transformers are intended for supplying of schemes of protection against earth fault of separate cores of three-phase cable by transformation of zero-sequence currents and are installed on the cable. Transformers are manufactured in climatic version "UHL" and "T" category 2 according to GOST 15150. The range of operation of transformers on primary current when working with microprocessor protection type SEPAM, 0,2-200A. Zero-sequence current transformers can be used in switchgear (3-110) kV, 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. It is possible to operate the transformer with microprocessor protection of another type.