The test system AMETest for power transformers is able to perform routine and type test on power transformers up to 630MVA – 750kV:
- Assembling electrical test:
o Insulation resistance measurement
o Polarization Indicator factor (PI)
o Vector group verification
o Transformer ratio measurement
o Winding resistance measurement with DC current
o Verification of the number of turns of each winding
All the test are performed with the equipment “AMETest TR-Minilab” directly in the assembling department.
All the test can be performed in automatic way through a computer that will control all the instruments and will perform the calculations. The acquired data will be sent to the test station Server PC through a WI-FI connection. This solution allow to reduce the test time in the test are of the power transformer.
The “AMETest TR-Minilab” can be used also in the test area during a test on a transformer with the presence of the customer.
- Insulation tests
o Separate source voltage withstand test
o Induced overvoltage withstand test
o Lightning Impulse test (LI)
o Lightning chopped impulse test (LIC)
o Switching impulse test (SI)
- Measures
o No-load losses measurement
o No-load current measurement
o Load losses measurement
o Load impedance measurement
o Partial discharge measurement
o Zero-sequence test
o Sound level test
o Sound pressure test
o Rise temperature test
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