Power Systems Consider a long, two wire line composed of solid round conductors. The radius of both conductors is 0.25 cm and distance between their centers is 100 cm. If this distance is doubled, then the inductance per unit length. Increase but does not doubled. Halves. Doubled. Decrease but does not halves. Increase but does not doubled. Halves. Doubled. Decrease but does not halves. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The inductance of single phase two wire line is given by 4×10-7× ln(d/r') H/m 4×10-7× ln(r'/d) H/m 0.4×10-7× ln(r'/d) H/m 0.4×10-7× ln(d/r') H/m 4×10-7× ln(d/r') H/m 4×10-7× ln(r'/d) H/m 0.4×10-7× ln(r'/d) H/m 0.4×10-7× ln(d/r') H/m ANSWER DOWNLOAD EXAMIANS APP
Power Systems The insulation of the modern EHV lines is designed based on R × I. the switch voltage. the lighting voltage. corona. R × I. the switch voltage. the lighting voltage. corona. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The arc voltage produced in an AC circuit breaker is always lagging the arc current by 90°. leading the arc current by 90°. in phase opposition with the arc current. in phase with the arc current. lagging the arc current by 90°. leading the arc current by 90°. in phase opposition with the arc current. in phase with the arc current. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Positive, negative and zero sequence impedances of line are 2,2 and 5 pu respectively. Find self and mutual impedances respectively? 2 and 5 pu 2 and 2 pu 1 and 3 pu 3 and 1 pu 2 and 5 pu 2 and 2 pu 1 and 3 pu 3 and 1 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The fact that current density is higher at the surface when compared to centre is known as All of these carona proximity effect skin effect All of these carona proximity effect skin effect ANSWER DOWNLOAD EXAMIANS APP
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