Voltage Transformer Routine Tests - IEC 61869
The following items are the routine testing items of High Voltage - Voltage Transformer according to
IEC 61869-1: 2007, IEC 61869-3: 2011
1.) Sealing Performance Test at Ambient Temperature
2.) Inspection of Terminal Markings
3.) Insulation Resistance Measurement
4.) D. C. Resistance Measurement
5.) Short-time power frequency withstand voltage test
6.) Induction withstand voltage test
7.) Dielectric loss factor measurement
8.) Partial Discharge Measurement
9.) Insulation Oil Performance Test
10.) Excitation characteristic test
11.) Accuracy test