Physics · Electrical Measurements
In precision metering applications, if a current transformer (CT) is connected to a burden with impedance significantly higher than its rated value, which of the following effects is most likely to occur?
- 1No change in error, as burden impedance has negligible effect
- 2Reduced hysteresis loss in the core
- 3Increased phase angle error due to higher voltage drop across secondary✓
- 4Decrease in ratio error because of better utilization of flux
Correct answer
Increased phase angle error due to higher voltage drop across secondary
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