I. Product overview

Turn-to-turn short circuit of generator rotor windings is a common fault in power systems. When such a fault occurs, the rotor current increases and the winding temperature increases, limiting the output of the generator, and in severe cases, it will affect the normal operation of the generator. Turn-to-turn shorts are usually identified by measuring the AC impedance and power losses of the generator rotor windings. The traditional measurement method is to use multiple test instruments and measure them after they are assembled in the field. This method, which requires a lot of test instruments to set up a measurement system, has the disadvantages of cumbersome test equipment, time-consuming and laborious, complicated data sorting, and low measurement accuracy.

II. Technical parameters

Measurement range   Impedance:0～999.9Ω

                    Voltage：0～600V

                    Current：0～120A

                    Power：0～72kW

                    Frequency：45～65Hz

Accuracy:   Impedance, voltage, current, frequency:0.2 class

             Power: 0.5 class

Dimensions:   345mm×295mm×175mm

Instrument weight:   5kg