why the pressure coil is not present in the three phase
wattmeter?
Answer / k.prakashchandra
Witout voltage input ,you can not measure watts.In EM
meter, the connections to pressure coils are made inside
the meter.In case of electronic meter, there are voltage
sensors (divider) instead of coils.
| Is This Answer Correct ? | 2 Yes | 1 No |
how the earthing point or earthing is taken for ships and airplanes?
How to desaturate a saturated CT of PS Class?
critically criticize the application of ring main unit in power system
How we calculate the current carrying capacity of H.T. cabel?
what is the pressure in side transformer under normal condition?
if the syncronous machine run at leading pf and as its field curret increased its armature current decreased is machine operate as generator or motor?
if current required for triggering thyristor at -30 degrees(temp) is 80 mA, what is the current required at 60 degrees
While connecting bulb in Series/Parallel,there is any difference in glowing
Why use the vcb at high transmission system ? Why can’t use acb?
How to calculate the current rating of power cables ?
Whats difference between a single phase & a three phase motor?
line vltage of three phase distribution transformer is 433v and phase voltage is 250v,but we required 230v for domestic distribution,then how we reduce phase voltage of transformer
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)