IN TWO WATTMETER METHOD WE GOT W1,W2,WE KNOW V.HOW TO FIND
Q????????????
Answer Posted / kiran
active power P = W1+W2
reactive power Q = 1.732(W1-W2)
so power factor cos theta = Tan-1((1.732(W1-W2)/(w1+w2))
i.e. cos theta = tan-1(reactive power/active power)
| Is This Answer Correct ? | 7 Yes | 0 No |
Post New Answer View All Answers
How do you determine the size of transformer radiators in a transformer?
EXPLAIN WHY THE SURGE CURRENT RATING OF AN MCCB OR CIRCUIT BREAKER DECREASES WITH INCREASE IN THE RATING OF MCCB OR CIRCUIT BREAKER.
How to convert 2 phase to 3 phase electricpower in induction moter?
what is meant by rotating magnetic filed
how to find the resistance and gap volatage of the diode??
-What should be minimum value of insulation resistance and maximum value of earth resistance at any electrical instillation and what is method of testing the same.
what is the difference b/w ATS and HTS?
power transmission pole used one support , that only for support or earthing
I am EEE student i want to improve my core side skills.how cn i approach it?
Explain Energy and Power signals?
What is the tube exial fan?
Define settling time.
What is the general power factor & min. power rating of TV,LCD type TV, CRt type TV, Scanner, printer?
What are linear and non-linear systems?
how can I calculate charging current of cable/overhead conductor? what is roll of voltage in it ?