Download BrochureCT & PT testing
Electrical Tests On CT:
- Capacitance & Tan Delta
- Insulation Resistance (IR)
- DC Absorption Test
- Ratio Test
- DC Winding Resistance
- Knee Point
- Megger Between Windings and Winding Terminals to Body.
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Polarity Tests.
A.) Ratio Identification Checking of All Ratios on All Cores by Primary Injection of Current.
B.) Magnetization Characteristics & Secondary Winding Resistance. - Spare CT Cores, If Any to Be Shorted and Earthed.
Electrical Tests On PT:
- Capacitance & Tan Delta
- Insulation Resistance (IR)
- DC Absorption Test
- DC Winding Resistance
- Insulation Resistance
- Ratio Test on All Cores.
- Polarity test
- Line connections as per connection diagram.