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 Standard
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Rotating electrical machines - Rating and performance.(GB755-2008)
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Impulse voltage withstand levels of form-wound stator coils for rotating a.c. Machines.(GB/T22715-2008)
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Test specifications of interturn insulation of armature winding for DC electrical machines.(GBT22716-2008)
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Test specifications of interturn insulation of field pole coil and field winding for electrical machines.(GBT22717-2008)
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Electrical insulation system -Electrical stresses produced by repetitive impulses - Part 1: General method of evaluation of electrical endurance.(GBT22566.1-2008)
 Can check out the fault
Turn-to-turn fault
Corona discharge
Disconnection of the winding
Number of turns differences
 security
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High voltage circuit has to start, stop buttons and dual foot switch insurance circuit, the safety and reliability of the instrument operation is higher.
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High voltage output circuit with high voltage display digital table, can display high-voltage equipment at work, In the digital table shows changes to "0", reminding the operator to swap the motor (coil), Avoid high-pressure switch motor(coil), increase the safety of use. At the same time with a warning when the instrument is working, light serve as a warning.
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Output high voltage wires with 100 kv line of silicone pressure. Fixture with large size, and good elastic clamp,Make better contact with the motor and fixtures.
 Reliability
Thyratron, filament, and trigger of the transformer with low voltage work mode, greatly reduces the voltage of high voltage auxiliary power supply circuit and operating voltage of trigger transformer, improves the safety and reliability.
Using high voltage loop isolated high frequency current sensor, and directly display through the thyratron and winding current waveform, to prevent the damage caused by a thyratron overload, at the same time, reduce the interference on the oscilloscope.
Main technical parameters
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According to the need of different model motor test, select the model and test.
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Can preset the measured motor factory standard parameters (input standard parameters, the qualified and unqualified upper and lower limit).
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Can realize some functions about the work of the motor interturn test ,such as automatic sorting, automatic switching, automatic analysis of the test, judgment, automatic storage of test parameters and test results, print and so on . Once you see unqualified product display pages (qualified, unqualified function area) this system automatically judges and does sound and light alarm.
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Dynamic monitoring: display dynamically test data by 19 inch color screen.
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Has the positive test function, and solve the problem about uneven distribution of the impulse voltage in the windings, so improve testing accuracy.
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Use electric voltage regulation or manual voltage regulation technology, and the winding of each phase test mode, including comparison of the measure of area, comparison of frequency, phase comparison ,respectively conduct Interturn Impulse withstand voltage test on the stator winding
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The system can test motor with the different wire connection form, according to user`s requirements ,then the user can sets the testing way that is suitable for the motor with multi winding、different wire connection form. Greatly improve the efficiency of inspection work of motor comprehensive test.
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The system adopts the optimization design method and weak signal processing technology in the lead in the domestic, which eliminates unstable factors such as low inductance and large winding interference, and then guarantee the test precision of the system.
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The system newly add some functions (test waveforms) such as automatic search, adjustment, memory storage and so on, according to the different models motor，and does search memory and store interturn testing standard parameters, in order to easily concompare, sort and switch automatically the testing parameter of the same model motor, analyze automatically test results, and judge test results (qualified, unqualified) . So, you can see that the comprehensive performance of this system is more than similar domestic and foreign products.
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Can conduct interturn Impulse withstand voltage test for single group coil of the large power motor (below 3000kW) or the whole motor.
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The large output energy , is especially applicable to high voltage motor with the large capacity, transformer, electrical appliances and other low inductance winding (coil measurement).
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High voltage circuit is provided with a start, stop button and the double protection circuit of the foot pedal switch, so equipment operation will be safe to people.
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The high voltage output circuit with LED display, can display the pressure at work, and the output wire is replaced by 20KV pressure resistant silicone rubber wire and special high voltage clamp.
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Thyratron, filament and trigger transformer are at low voltage working mode, which greatly reduces the high voltage auxiliary power supply circuit voltage and the trigger transformer working voltage, and so guarantee safety and reliability of the instrument operation.
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Using high frequency current sensor that keeps away from the high voltage circuit, directly display winding waveform and current through the thyratron, and newly add the protective circuit of regulated power supply, prevent thyratron overload and thyratron damage caused by network voltage instability, meanwhile reduce interference on the oscilloscope;
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Suitable for special motor testing with low inductance and large winding interference, and single / three-phase AC motor test with rated voltage of 4KV/3000KW and below
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