A 3-phase 4 wire system is commonly used on________________?
A. Primary transmission
B. Secondary transmission
C. Primary distribution
D. Secondary distribution
Which of the following materials is used for overhead transmission lines ?
A. Steel cored aluminium
B. Galvanised steel
C. Cadmium copper
D. Any of the above
The power transmitted will be maximum when____________?
A. Corona losses are minimum
B. Reactance is high
C. Sending end voltage is more
D. Receiving end voltage is more
A feeder, in a transmission system, feeds power to________________?
A. Distributors
B. Generating stations
C. Service mains
D. All of the above