The Testing Station performs tests and measurements of transformers in the following areas
- Measurement of magnetic current,
- Measurement of leakage reactance,
- Measurement of winding resistance,
- Measurement of the transmissions,
- Checking the connection group,
- Measurement of insulation resistance,
- Measurement of no-load losses and current,
- Measurement of load losses and short-circuit voltage,
- Zero sequence impedance test,
- Induced voltage test,
- Applied voltage test,
- Impulse voltage test,
- Acoustic measurements of partial discharge,
- Electrical measurements of partial discharge,
- Measurements of sound pressure level
- Testing mechanical integrity of windings using SFRA,
- Testing moisture content of solid insulation using FDS,
- Measurement of dielectric loss factor tg D and capacity of the windings,
- Testing on-load tap changer (measurement of the connector asynchronicity opening times, measurement of tap selector cage continuity),
- Infrared measurements.
The Oil Laboratory conducts tests of electrical insulating oils in the following areas
- Water content using K. Fischer method,
- Breakdown voltage
- Dielectric loss factor tg D at different temperature
- Resistivity at different temperature
- Flash point
- Acid number
- Density at 20 Celsius
- Kinematic viscosity
- Content of impurities
- Chromatographic analysis of gases dissolved in oil (DGA)