It is intended for maintenance of a measuring chain charge with an alternating current at carrying out of checkings (calibrations) of measuring TT with rating value of a primary current… 

Transformers of current TOLU-10 are intended for a signal transmission of the measuring information to measuring devices, protection and control devices, for isolation of chains of secondary connections from a… 

Transformers of current TPLU-10 are intended for a signal transmission of the measuring information to measuring devices, protection and control devices, for isolation of chains of secondary connections from a… 

Transformer of current TZLU-70 is intended for charging of schemes of relay protection against short circuit.