Why we use cosine angle for calculating power factor not in
sine angle ?
Answer Posted / prof.kingstan
See its because when there is no power lag, that is when the phase shift is 0 your other parameters shouldn't affect by the cos (phi). So when Phi=0 then cos (phi)=1. Therefore its much convenient to choose cosine rather than sine angles.
| Is This Answer Correct ? | 12 Yes | 2 No |
Post New Answer View All Answers
THERMAL CAPACITANCE IS MEASURED IN..................................................
If we want to change a contactor of faulty one what are the conditions want to fullfil
how to revers the direction of single phase motor
What is mean by hot and cold loop testing?
what is tri state logic gate
how to calculate the step resistance for slipring induction motor,how you deside the no of step for that?
what is meant by directional earth fault and non directional earth fault? describe both.
How can we convert 11 kv to 440 volt without using transformer ?
Don't you have similar question banks related to Oral Certification Examination conducted by Mercantile Marine Departments / Directorate of Shipping, Ministry of Shipping for Electro Technical Officer?
why should the primary of transformer be connected in delta in a heat run test?
how to calculate the no load current in transformer?
What are chief characteristics of state-space method and its techniques ?
1) Explain why we don't link the two earthing system ht and mv on a pole mounted transformer sub-station.
what is JE exam?
Explain Continuous and Discrete signals?