Which of the following is not a source of reactive power?

Which of the following is not a source of reactive power?

(A) Generators (B) Reactors

(C) Resistors (D) Capacitors
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1 Answer

Answer :

Which of the following is not a source of reactive power?

(A) Generators (B) Reactors

(C) Resistors (D) Capacitors

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Related questions

Define active power and reactive power for RLC series circuit.

Description : Define active power and reactive power for RLC series circuit.

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Description : Explain the term reactive power. Why it is sometimes essential to measure reactive power?

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Description : List any two methods of reactive power measurement in 3 phase circuit.

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Last Answer : In wound rotor alternator, reactive power is maximum at a load angle of 0o

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Description : The apparent power drawn by an A.C. circuit is 10 kVA and active power is 8 kW. The reactive power in the circuit is?

Last Answer : The apparent power drawn by an A.C. circuit is 10 kVA and active power is 8 kW. The reactive power in the circuit is 6 kVAR.

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Description : what are the importance of reactive power?

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Description : why reactive ohm cannot converted electrical energy into heat?

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Description : The voltage phasor of a circuit is 10 ∠15° V and the current phasor is 2∠–45° A. The active and reactive powers in the circuit are   (a) 20 2 W and 10 2 VAR (b) 10 W and 10 3 VAR (c) 5 W and 5 3 VAR (d) 10 3 W and – 10 VAR 

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Description : What is Reactive Power ?

Last Answer : The product of the voltage of the AC circuit and the product of the reactive current or the vertical component of the current is called reactive power.

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Description : As shown in the illustration, the function of the switch labeled 'PFSW' is to determine the ______________. EL-0003 A. bus frequency B. reactive volt amperes of the bus C. frequency of either generator D. power factor of either generator

Last Answer : Answer: D

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Description : The energy consumed by an AC motor, as strictly reactive power, is _____________. A. used to do mechanical work B. used to establish the magnetic field of the motor C. lost as heat generated by the windings D. lost in doing work to turn the motor itself

Last Answer : Answer: B

The reactive power drawn by a motor from an AC generator is the power which is _____________. A. used to establish the magnetic field of the motor B. lost in overcoming friction in the bearings C. strictly converted to heat generated by current flow through the windings D. transmitted directly through the rotor shaft to perform useful work

Description : The reactive power drawn by a motor from an AC generator is the power which is _____________. A. used to establish the magnetic field of the motor B. lost in overcoming friction in the ... by current flow through the windings D. transmitted directly through the rotor shaft to perform useful work

Last Answer : Answer: A

Which of the following statements concerning AC circuits is correct? A. The power factor of a resistive circuit is always zero. B. True power in an inductive circuit always equals apparent power. C. Inductive reactance varies directly with the frequency and the inductance. D. Total opposition to the flow of alternating current depends upon the amount of reactive power.

Description : Which of the following statements concerning AC circuits is correct? A. The power factor of a resistive circuit is always zero. B. True power in an inductive circuit always equals apparent power. ... . D. Total opposition to the flow of alternating current depends upon the amount of reactive power.

Last Answer : Answer: C

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Description : Complete maintenance of electrical motors should include periodic checks for machine _____________. A. vibration B. watertight integrity C. speed droop D. reactive power

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Description : The apparent power in a purely inductive circuit is also known as _____________. A. true power B. lead power C. induced power D. reactive power

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Description : What will be the reactive power and bus voltage whan the generator bus is treated as load bus.

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Description : What is purpose of reactive power (VAR)?  

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Description : Illustrate how can you use a single-phase wattmeter to measure 3 phase reactive power in a circuit?

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Description : Explain the terms real power, apparent power and reactive power for ac circuits and also the units used.

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Description : The voltage of a particular bus can be controlled by controlling the a) Active power of the bus b) Reactive power of the bus c) Phase angle d) All of the above

Last Answer : b) Reactive power of the bus

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Description : What is the unit of measurement of reactive power?

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Description : What is the reactive power in an ac circuit?

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Last Answer : (d) All of the above

Use Voltmeter, ammeter, wattmeter to determine active, reactive and apparent power consumed in given R—C series circuit, draw phasor diagram.

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Use Voltmeter, ammeter, wattmeter to determine active, reactive and apparent power consumed in given R-L series circuit, draw phasor diagram.

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Draw the circuit diagram for:- i) Measurement of active power in 3-phase load circuit using two wattmeter. ii) Measurement of reactive power in 3-phase load circuit using one wattmeter.

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State the necessity of reactive power compensation equipment. List out the devices used for reactive power compensation and give application of each device.

Description : State the necessity of reactive power compensation equipment. List out the devices used for reactive power compensation and give application of each device.

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Explain reactive power compensation in Transmission and Distribution systems.

Description : Explain reactive power compensation in Transmission and Distribution systems.

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With neat diagram explain use of “reactive power controller” to reduce technical losses in transmission and distribution system.

Description : With neat diagram explain use of “reactive power controller” to reduce technical losses in transmission and distribution system.

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For a transmission line with negligible losses, the lagging reactive power...

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Last Answer : For a transmission line with negligible losses, the lagging reactive power (VAR) delivered at The receiving end, for a given receiving end voltage, is directly proportional to the line voltage drop.

What is the formula for reactive power?

Description : What is the formula for reactive power?

Last Answer : The formula for reactive power is, Reactive power = VI sin (phi) The unit of reactive power is VAR ( Volt ampere reactive). The reactive power is denoted by 'Q'. The formula for real power is, Real power = VI cos (phi) The unit of real power is watts. The real power is denoted by 'P'.

Reactive power

Description : reactive power is greater in load side compare to generator what will happen?

Last Answer : VI*sin()