Transformer Performance Comprehensive Test Bench

Check for correct wiring on the terminal blocks, as well as for any short circuits between the terminal block connections and between the connections and ground (i.e., any short circuits between the phases of the wires leading from the test bench to the transformer under test).

Closed the three-phase switchgear,"The 'Three-Phase Power Indicator' lights up all three lamps. If one or two lamps are not illuminated, the power should be turned off for inspection to determine whether the indicator lamp is faulty or there is a phase missing."(Note: The fuse on the three-phase switchgear must be appropriately sized and absolutely not to be replaced with any non-fuse material.)After the test bench is properly powered on, rotate the "Power Voltage Switch" knob to monitor the "Power Voltage Indicator" and check if the three-phase voltages are balanced. The test requirements call for the three-phase power voltage to be as balanced as possible.

OpenAfter the "Secondary Loop Power Control" (i.e., the key) is engaged, the "Secondary Loop Power Indicator" light illuminates, indicating that the secondary loop power is connected. If the voltage regulator is not at zero, it will automatically return to zero. Once the voltage regulator is zeroed, the following sequence of tests can be performed: 1. Ratio Group Test;2Direct Current Resistance Test3.Empty Load Test4.Short-circuit Test5Triple-frequency Test6．Endurance Test (Note: High-voltage transformer is provided separately).