Neka carries out complete diagnosis of transformers and bushings.

We can perform;

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1. Capacitance and power factor/dissipation factor measurement

2. DC winding resistance measurement and OLTC verification

3. Transformer turns ratio (TTR) measurement

4. Exciting current measurement

5. Short-circuit impedance / leakage reactance measurement

6. Frequency response of stray losses (FRSL) measurement

7. Demagnetization

8. Online and offline partial discharge testing

Insulation test with measurement of loss factor (TD), capacitance and impedance.  

Reveals aging and weaknesses in the insulation of power transformers, transformer bushings, circuit breakers and arresters.