railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical and Electronics Measurements Measurement of Energy Induction Type Energy Meter
Which of the following is NOT correct when high-voltage leads are eliminated in potential transformer (PT) bushings?
1
Decreases size and weight of the PT
2
Increases the risk of short circuits
3
Measures line-to-ground voltages in a three-phase system
4
Reduces overall cost of the transformer