MA le Pb Input to a 11-kV, 36, Y-connected, synch motor is 60 A. Effective resistance per phase Synchronous reactance per phase 12 3052 Find a) power supplied to the motor ( Pin) b) induced emf for a 0.8 leading a) Pin = √3 V. I. cost = √3 Pin = (3 /(11000) 914.52 kW 11000) (60) (0.8) = Pb b) Ep = √p - Ja (Zip) 1100020 -(60236.87") (1+0) induced emf per phase E 7528.95 L-11.31 VI E = 6 × √3 E = 13,040 V final ans. line E dapat A. 2,200 V 30 star-connected S.M. has a resistance of 0.6 2 and synch reactance of 6. Find generated emf and the angular retardation of the motor when input is 200kW Ed ولا 2200 √3 at unity pf. Ia Zsp - (62.49 20°)(0.6 +16) 40° E = 1,278.09 L-14.27° FO√3 E2213.71 V Angular retardation 14.27° bw Vand E tinanggal sign na (-) to dae man hingpot kung leading / lagging 2024-04-26 Problem A 3-phase, 220-V, 50-Hz, 1500 r.p.m., mesh- connected synchronous motor has a synchronous impedance of 4 ohm per phase. It receives an input line current of 30 A at a leading power factor of 0.8. Find the line value of the induced e.m.f. and the load angle expressed in mechanical degrees. Ans. 268V, 6°

MA le Pb Input to a 11-kV, 36, Y-connected, synch motor is 60 A. Effective resistance per phase Synchronous reactance per phase 12 3052 Find a) power supplied to the motor ( Pin) b) induced emf for a 0.8 leading a) Pin = √3 V. I. cost = √3 Pin = (3 /(11000) 914.52 kW 11000) (60) (0.8) = Pb b) Ep = √p - Ja (Zip) 1100020 -(60236.87") (1+0) induced emf per phase E 7528.95 L-11.31 VI E = 6 × √3 E = 13,040 V final ans. line E dapat A. 2,200 V 30 star-connected S.M. has a resistance of 0.6 2 and synch reactance of 6. Find generated emf and the angular retardation of the motor when input is 200kW Ed ولا 2200 √3 at unity pf. Ia Zsp - (62.49 20°)(0.6 +16) 40° E = 1,278.09 L-14.27° FO√3 E2213.71 V Angular retardation 14.27° bw Vand E tinanggal sign na (-) to dae man hingpot kung leading / lagging 2024-04-26 Problem A 3-phase, 220-V, 50-Hz, 1500 r.p.m., mesh- connected synchronous motor has a synchronous impedance of 4 ohm per phase. It receives an input line current of 30 A at a leading power factor of 0.8. Find the line value of the induced e.m.f. and the load angle expressed in mechanical degrees. Ans. 268V, 6°

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter11: Transient Stability

Section: Chapter Questions

Problem 11.1P

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