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10A. Calculate the power consumed of the load, load impedance and power factor of the load. c) What is the difference between primary and secondary standards of measurements? Question 4 a) The secondary winding burden of CT having a har primary and 240 secondary turns, has an ammete: resistance and reactance of I chm and 05 uhms tespeetively. The resistance of secondary winding is 0.5 chms and the reactance is 0.25 The core requires munf of 100 AT for magnictisation and 50 AT for core losses. Determine the primary winding current. the actual trunsformation ratio when the ammeter reads 5A, Ihe numher of turns which could be recuced in the secondary winding sa that the ration error comes zero. b) The following readings were chtained from three voltmeters Ined for single phase power micasurements V2-200V across the non-inductive resistor, V3-220V across the nductive load, VI=350V acrmss the two volimerers in weirs. Cakculate the power factor of the non- inductive load. c) Define PCLS and stute their main advantages over hard wired relaye. Question 5 a) The series clunmeter in Fig. Q5. I below is made up of a 3 V hattery and a resistance R, which makes (RI + Ra)= 15 kn. (a) Determine the instrument indication when Rx -0. (b) Determine how the resistance scale should be marked at 0.5 FSD. 0.25 FSD, and 0 75 FSD Resistance ta be measured Sandard resistance R. Meier resistance Battery- Mrier Fig. QS. 1 b) An analog indicating instrument with a scale range of 0 to 50 V shows a voltage on 2 8! V. The true value of the reading is 2.90 volts.

10A. Calculate the power consumed of the load, load impedance and power factor of the load. c) What is the difference between primary and secondary standards of measurements? Question 4 a) The secondary winding burden of CT having a har primary and 240 secondary turns, has an ammete: resistance and reactance of I chm and 05 uhms tespeetively. The resistance of secondary winding is 0.5 chms and the reactance is 0.25 The core requires munf of 100 AT for magnictisation and 50 AT for core losses. Determine the primary winding current. the actual trunsformation ratio when the ammeter reads 5A, Ihe numher of turns which could be recuced in the secondary winding sa that the ration error comes zero. b) The following readings were chtained from three voltmeters Ined for single phase power micasurements V2-200V across the non-inductive resistor, V3-220V across the nductive load, VI=350V acrmss the two volimerers in weirs. Cakculate the power factor of the non- inductive load. c) Define PCLS and stute their main advantages over hard wired relaye. Question 5 a) The series clunmeter in Fig. Q5. I below is made up of a 3 V hattery and a resistance R, which makes (RI + Ra)= 15 kn. (a) Determine the instrument indication when Rx -0. (b) Determine how the resistance scale should be marked at 0.5 FSD. 0.25 FSD, and 0 75 FSD Resistance ta be measured Sandard resistance R. Meier resistance Battery- Mrier Fig. QS. 1 b) An analog indicating instrument with a scale range of 0 to 50 V shows a voltage on 2 8! V. The true value of the reading is 2.90 volts.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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10A. Calculate the power consumed of the load, loud impedance and power factor of the load. c) What is the difference between primary and secondary standards of measurements" Question 4 a) The secondary winding burden of CT having a har primary and 240 secondary tuns, has an ammete: resistance and reactance of I chm and 05 uhuns respeetively. The reSistance of secondary winding is 0.5 chms and the reactance is 0.25 The core requires manf of 100 AT for magrietisation and 50 AT for core losses. Determine the primary winding current. the actual trunsformation ratio when the ummeter reads SA, Ibe number of turns which could be recuced in the secondary winding so that the ration error comes zero. b) The fallowing readings were ohtained from three voltmeters used for single phase power mcusurements V2=200V across the non-inductive resistor, V3-220V aeross the mnductive load, VI=350V across the two volimeers in weirs. Cakulate the power factor of the non- inductive load. c) Define PCLS and state their main advantages over hard wired relays. Question 5 a) The series clunmeter in Fig. Q5. 1 below is made up of a 3 V hattery and a resistance R, which makes (RI + Rm) = 15 kn. (a) Determine the instrument indication when Rx =0. (b) Determine how the resistance scale shuld be marked at 0.5 FSD. 0.25 FSD, and 0 75 FSD Resistance ta be measured R. Standard resistance Meter resietance Battery+E, Mrier Fig. QS. 1 h) An analog indicating instrument with a scale range of 0 to 50 V shows a voltage on 2 85 V. The true value of the reading is 2.90 volts.
Transcribed Image Text:10A. Calculate the power consumed of the load, loud impedance and power factor of the load. c) What is the difference between primary and secondary standards of measurements" Question 4 a) The secondary winding burden of CT having a har primary and 240 secondary tuns, has an ammete: resistance and reactance of I chm and 05 uhuns respeetively. The reSistance of secondary winding is 0.5 chms and the reactance is 0.25 The core requires manf of 100 AT for magrietisation and 50 AT for core losses. Determine the primary winding current. the actual trunsformation ratio when the ummeter reads SA, Ibe number of turns which could be recuced in the secondary winding so that the ration error comes zero. b) The fallowing readings were ohtained from three voltmeters used for single phase power mcusurements V2=200V across the non-inductive resistor, V3-220V aeross the mnductive load, VI=350V across the two volimeers in weirs. Cakulate the power factor of the non- inductive load. c) Define PCLS and state their main advantages over hard wired relays. Question 5 a) The series clunmeter in Fig. Q5. 1 below is made up of a 3 V hattery and a resistance R, which makes (RI + Rm) = 15 kn. (a) Determine the instrument indication when Rx =0. (b) Determine how the resistance scale shuld be marked at 0.5 FSD. 0.25 FSD, and 0 75 FSD Resistance ta be measured R. Standard resistance Meter resietance Battery+E, Mrier Fig. QS. 1 h) An analog indicating instrument with a scale range of 0 to 50 V shows a voltage on 2 85 V. The true value of the reading is 2.90 volts.
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