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Testing
Testing is carried out in our well-equipped state-of-the-art testing facility. Impulse tests are carried out in house using HAEFELY 800kVp impulse generator.
Tests carried out at ETS
Routine tests |
Optional Tests |
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Measurement of winding resistance | Measurement of winding resistance |
Measurement of voltage ratio and verification of vector connection | Measurement of voltage ratio and verification of vector connection |
Measurement of load losses and short-circuit impedance | Impulse test including application of chopped waves |
Measurement of no-load loss and magnetizing currents | Additional dielectric tests including partial discharge measurement |
Dielectric tests as specified by standards (applied high voltage test and induced over-potential test) | Measurement of Zero-sequence impedance |
Test on on-load tap-changers as appropriate | Measurement of noise level |
Measurement of harmonics of magnetizing currents | |
Measurement of auxiliary power consumption |