active power in 3 phase circuit is mcq
If the power factor is zero, the active recovery voltage will be (a) minimum (b) 0.5 (c) 0.707 (d) maximum. B) PActive = 3 XELINEX JLINE C) PActive =ELINEX JLINE\cos 0 D) Depends On The Load Connection. MCQs of Symmetrical Three-Phase Faults. The Following Section consists Multiple Choice Questions on Three-Phase Systems in Power Applications. View MCQ_three phase.docx from IT 69 at Fr. Mostly active B. The power consumed in a circuit element will be least when the phase difference between the current and voltage is Conceicao Rodrigues College of Engineering. Power in a Three Phase Circuit = _. Current in the circuit is A. Learn Three Phase Systems In Power Applications MCQ questions & answers are available for a Electrical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. The wattmeter method is used to measure power in a three-phase load. 1. Consider the three-phase 3-wire load that is supplied by a balanced positive-sequence source where the rms values of phase voltages are equal to 120 V, with phase “a” voltage is taken as a reference. Mostly Reactive C. Both active and reactive power are equal D. None of the above . A. Next . If α is the angle of voltage wave at which an R-L circuit is switched in and Θ is the impedance angle of the R-L circuit, there will be no transient when the circuit is … In case of 3 phase short circuit in a system, the power fed into the system is A. 16. 1. 133 mA C. 1.33 A D. 6.2 A Answer: Option C. Q.10 A three-phase generator is connected to three 90 load resistors. A common neutral line exists. Take the Quiz and improve your overall Engineering. In this, each diode conducts for 1/6 th part of the AC cycle. MCQ No - 1. How much current flows through the common neutral line? The key difference between working out power for 3-phase and single-phase systems is a factor of the square root of three. Calculate the total active power. 13.3 mA B. The wattmeter readings are 400W and -35W. In three-phase full wave rectifier, six diodes are used. 2. It is also called 6-diode half-wave rectifier. Q.9 A single-phase sinusoidal voltage of 120 V is connected to a 90 load. Performing a 3-phase power calculation means using a simple formula relating the power to the voltage, current and a power factor describing the efficiency of the circuit. 360 B. Each coil generates 120 V ac. ... 19. Circuit Breaker Multiple Choice Questions 3. BEE: Sem I MCQ’s on Three phase circuits Date: / / Div: Roll no: Q1. Six phases half wave rectifier or 3 Phase Full Wave Rectifier. … The Formula For The Total Active Power In Three-phase Balanced Circuit Is: A) Pastive =ELINEⓇ LLINExp.f. 365 C. 370 D. 375 Answer: B P Network Theory Multiple Choice Questions & Answers on “Power Measurement in Three-Phase Circuits”. ANSWER: Choose An Item. Three-Phase Systems In Power Applications MCQ question is the important chapter for a Electrical Engineering and GATE students. The load impedances across phases a-b, b-c, and c-a are purely resistive as follows: Rab = 60Ω, Rbc = 90 Ω, Rca = ∞ (i.e, open circuit).
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