The utility model relates to an electric power system training analogue means on duty, transformer secondary standard turns real standard of industry and standardized operation procedure system into promptly. It is with following for electrical equipment cable, and the actual wiring in the simulation transformer substation is connected to the optical cable, forms the hardware facility of here training system: WB primary equipment mimic bus, QS simulation switch, the used change of T, TV photoelectricity voltage transformer, QF mimic -disconnecting switch, this type of mark equipment of TA photoelectricity current transformer all are analog switch to be realized, passes through cable junction with other equipment, direct current operating power, D. C. Isolation monitoring device pass through cable junction for the fixed screen body with other equipment, circuit breaker control circuit, signal system, protection return circuit, mutual -inductor secondary circuit, electric parameter measurement instrument return circuit are fixing device, connect through the optical cable each other. The secondary specialty contest of various types of transformer substations, training can be undertaken, the study costs of going out is reduced.