State the effects of errors in dynamometer type wattmeter due to i) pc- inductance ii) pc- capacitance iii) mutual inductance iv) Connection.
by

1 Answer

0 like 0 dislike

Errors in wattmeter: 

i) pc - inductance: Pressure coil inductance causes wattmeter to read more power than actual . 

ii) pc-capacitance: The wattmeter reads less power. 

iii) Mutual inductance: An emf induced in pressure coil due to current through the current coil. This emf of pressure coil opposes applied voltage. 

iv) Connection: In uncompensated wattmeter , the reading of wattmeter includes the powerloss in coils. 

by

Related questions

0 answers
asked Apr 22 by Shwetha | 46 views

9,129 questions

7,895 answers

145 comments

3,207 users