IN TWO WATTMETER METHOD WE GOT W1,W2,WE KNOW V.HOW TO FIND
Q????????????
Answers were Sorted based on User's Feedback
Answer / 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 |
Answer / ravi gurubelli
we know W1 and W2
so real power P = W1+W2
Reactive power Q= sqrt3 (W1-W1)
| Is This Answer Correct ? | 7 Yes | 3 No |
Answer / rajeshwar rao
1.732(w1-w2)=Q and P=w1+w2
tan∅= (√3(W1-W2)/((W1+W2))
| Is This Answer Correct ? | 3 Yes | 0 No |
We have energy meter of ct ratio 200/5amp and installed cut having ct ratio 100/5 amp what is final MF?
IN A DY11 GROUP DISTRIBUTION TRANSFORMER WITH NEUTRAL EARTHED, WHAT WILL HAPPEN TO THE SYSTEM VOLTAGE & THE EQUIPMENTS IF EARTH GETS OPEN ON LOAD?
What does “battery of 180 AMP HOUR” mean to you?
What is the rotor frequency of 10 Hp 1440 RPM 50HZ 415V ?
What is inverse definite minimum time lag relay? Where is it use?
why to use freewheeling diode ( diode in revers bias mode) across dc coil
what happen if any one phase of a slipring induction rotor winding is open?is it start or won't?
what is the location of lighting switch of battery room
What is FTA card? How it works?
can d.c.transformer exist? if yes then what its max. rating?
calculate multiplication factor of a trivector meter with line ct ratio 200/5A, line PT ratio 11000/110V and meter CT ratio 200/1A and meter pt Ratio 11000/110V.
what is XF 200/240 V AC for Drawout Breaker.
Civil Engineering (5086)
Mechanical Engineering (4453)
Electrical Engineering (16638)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)