Electric Circuits Condition for a balanced 3 - phase load is that, each phase has the same value of __________________. impedance. resistance. all of these. power factor. impedance. resistance. all of these. power factor. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 3 wire, 3 - φ supply feeds a load consisting of three equal resistors. By how much is the load reduced if one of the resistors be removed when the load is in star? 50 % of the original load. 25 % of the original load. 66.66 % of the original load. 33.33 % of the original load. 50 % of the original load. 25 % of the original load. 66.66 % of the original load. 33.33 % of the original load. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Phase voltages of a star connected alternator are ER = 240∠0o V, EY = 240∠-120o V and EB = 240∠ + 120o V. What is the phase sequence of the system? YBR. BYR. RBY. RYB. YBR. BYR. RBY. RYB. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A balanced three Phase Y-connected load has one phase voltage VB = 277∠45o V. The phase sequence is RYB. The line to line voltage VRY is 339∠45o V. 480∠45o V. 339∠- 45o V. 480∠ - 45o V. 339∠45o V. 480∠45o V. 339∠- 45o V. 480∠ - 45o V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In delta connected circuit when one resistor is open, then power will be 0. reduced by the factor of 3. remain unchanged. increased by factor of 3. 0. reduced by the factor of 3. remain unchanged. increased by factor of 3. ANSWER DOWNLOAD EXAMIANS APP
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