What is the significance of vector grouping in Power Transformers? Last Answer : Every power transformer has a vector group listed by its manufacturer. Fundamentally it tells you the information about how the windings are connected (delta or wye) and the phase difference between the ... Delta primary, Wye Secondary and the current is at 11 o clock referred to the voltage....
What inductance will give the same reactance as a capacitor of 2 μF when both are at 50 Hz? a. 5H b. 10H c. 15H d. 20H Last Answer : Ans. a. 5H ...
What is power factor? Whether it should be high or low? Why? Last Answer : Power factor should be high in order to get smooth operation of the system. Low power factor means losses will be more.it is the ratio of true power to apparent power. It has to be ideally 1. If it ... ex: 0.95 to meet actual power load has to draw less current (V constant), result in less losses)...
A series has R=5Ω , L=0.15mH ,and C=100μF and is supplied with 230V,50Hz single phase. Find impedance, current, power, power factor of the circuit. Last Answer : Solution: Impedance: Z Inductive Reactance, XL. ...
What are the disadvantages of the low power factor? Last Answer : The disadvantages are: Large KVA rating of equipment Greater conductor size Large copper losses Poor voltage regulation Reduced handling capacity of system...
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