With the same maximum voltage to earth, which among the following AC systems with 0.8 pf will need more copper compared to 2 wire system?
A. Single phase, 2 wire
B. Single phase, 3 wire
C. Three phase, 3 wire
D. Three phase, 4 wire
The generating voltage and frequency in India is about?
A. 11 kV and 60 Hz
B. 11 kV and 50 Hz
C. 220 kV and 60 Hz
D. 220 kV and 50 Hz
Which type of system is generally adopted for the generation and transmission of electrical power?
A. 3 phase 4 wire
B. 2 phase 3 wire
C. 3 phase 3 wire
D. None of these
The rated voltage of a 3 phase power system is given by ____________.
A. rms peak voltage
B. Peak phase voltage
C. rms line to line voltage
D. Peak line to line voltage
Which of these systems uses the 3 phase 4 wire system?
A. Primary distribution
B. Secondary distribution
C. Primary transmission
D. Secondary transmission
A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true and R is not the explanation of A
C. A is true but R is false
D. A is false but R is true