First person to solve this in the comments section will get one or all of my books for a 30% discount. You must show how you got the answer. Must have paypal or cashapp. Nicholas Hall got it. A three-phase circuit with ABC rotation is show below. If both transformers are ideal and have subtractive […]

First person to solve this in the comments section will get one or all of my books for a 30% discount. You must show how you got the answer. Must have paypal or cashapp. JEROME PEDRO got it correct A three-phase un-grounded circuit with ABC rotation is connected to a resistive load as shown below. […]

Note: This problem has already been solved. Contest is over. First person to solve it in the comment section and show how they got the answer will get one or all of my books for free OR can get $100 cash. Must have cashapp or paypal to get money. An AC analog amp-meter with a […]

Another problem here, problem #21. We’re at loss with the solution, as this is the first time we’re seeing a relation between generator curves, to R-X diagrams, and to a distance relay. Does anyone understand the solution or is able to provide more clarity? If you ever look at a loss of excitation relay it […]

A distance relay is located at Bus A that looks outwards toward Bus C as shown in the diagram below. Zone 1 of the distance relay covers transmission line AB and Zone 2 covers just beyond Bus C. A fault occurs on Bus C. When Generator B is online and breaker 52 is closed, which […]

A full wave rectified circuit is given below. If diode D2 is shorted out, what is the average voltage across RL? A) 0 (i.e. short circuit) B) 54 V C) 108 V D) 216 V

Three single phase transformers are connected for a three phase application. Given the transformer bank connections below, what is the angular displacement from the high side to the low side? a) 0° b) 30° c) 180° d) 210°

A synchronous generator supplies power to a synchronous motor connected directly to its terminals. The sub-transient reactance of the generator and motor on a certain kva base and the rated voltage of the machines are 20 and 100%, respectively. The current supplied by the generator is 80% of base current. The power factor at the […]

A synchronous machine has the three line terminals connected together so that all three phases are in parallel. A single-phase alternating voltage is applied between the line terminals and the neutral terminals with ammeter, A, as shown below. If the test voltage “V” is set equal to 0.55 per unit and the ammeter is reading […]

Given the simple radial system below, if Zline has an angle of 80° and Zload has an angle of 10°, which of the following statements is false? A) As Zload increases, Pr increases rapidly at first and then slowly before reaching a maximum, and finally decreases. B) The power transmitted is maximum when the voltage […]