AST320/WH allows the testing of both form-wound stator coils and stators for motors/generators with medium voltage supply. The system has been made to test windings of stators and form-wound stator coils for motors and generators with rated voltage up to 30KVac. User friendly software helps the operator to easily move from one test to another and to connect or disconnect the product. The winding to be tested is connected with two HV cables with sense wire. AST320WH is designed according to: EN60034-15 and IEEE std 522 – 2004Several Models are available with maximum Surge Test 12-30-45-60 KV.

AST320/WH also allows the testing of:

  • Individual form-wound stator coils
  • Individual form-wound stator coils or unconnected coils inserted into stators. The software will guide the operator showing how and when to connect or disconnect the next coil to be tested. A single report will be generated for the stator which will include the test result for each single coil
  • Stator winding with all the form-wound coils connected

The AST320/WH system records the sequence of tests done and saves all results on a single test certificate. Different reports are available:

  • A report for each coil
  • A complete report which contains the details of the all the tests made for each coil.
  • A summarized report which contains the average value of the results for all the coils tested.

AST320/WH has 2 different operating modes:

  • Automatic Mode. The tests are performed in automatic sequence at fixed testing voltage. Possibility to set messages for the operator about the manual operation to do between each test.
  • Manual tests. The testing voltage change automatically from 2 settable values and the system calculate automatically the minimum, the average and the maximum value of the testing results at the different testing voltages. This allows identification of faults just by analysing its behaviour at different voltages. The various tests made with different voltage values are automatically compared. The system will then calculate the imbalances between the tests. This procedure is very useful because it enables the evaluation of faults without knowing the real characteristics of the coils.