Assume that a three-phase 700KW, 50 Hz, 4200V (Line to Line) Wye-connected induction motor has a full-load efficiency (n) of 100% and a lagging power factor of 0.75 and is connected to a feeder. If it is desired to correct the power factor of the load to a lagging power factor of 0.9 by connecting three capacitors (capacitor bank) at the load as shown in the figure a VLL b VLL IL Motor PF Lagging KW CAPACITOR BANK If QC is rating of the capacitor bank in KVAR that should be connected in parallel with motor and if C is the capacitance of each unit if the capacitors are connected in delta, in microfarads Taking two digits after comma, then QC and C will be Select one: O a. QC = 475.12 KVAR &C = 12.63 Microfarad Ob. QC = 675.12 KVAR &C = 42.63 Microfarad O. QC = 775.12 KVAR & C = 42.63 Microfarad Od. QC = 575.12 KVAR &C = 32.63 Microfarad O e. QC = 375.12 KVAR & C = 22.63 Microfarad Of. None of these
Assume that a three-phase 700KW, 50 Hz, 4200V (Line to Line) Wye-connected induction motor has a full-load efficiency (n) of 100% and a lagging power factor of 0.75 and is connected to a feeder. If it is desired to correct the power factor of the load to a lagging power factor of 0.9 by connecting three capacitors (capacitor bank) at the load as shown in the figure a VLL b VLL IL Motor PF Lagging KW CAPACITOR BANK If QC is rating of the capacitor bank in KVAR that should be connected in parallel with motor and if C is the capacitance of each unit if the capacitors are connected in delta, in microfarads Taking two digits after comma, then QC and C will be Select one: O a. QC = 475.12 KVAR &C = 12.63 Microfarad Ob. QC = 675.12 KVAR &C = 42.63 Microfarad O. QC = 775.12 KVAR & C = 42.63 Microfarad Od. QC = 575.12 KVAR &C = 32.63 Microfarad O e. QC = 375.12 KVAR & C = 22.63 Microfarad Of. None of these
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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