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

Your answer

Thanks for your contribution. Feel free to answer this question. Please avoid short answer. Your answer is most welcome. Be genuine.

Upload image or document:

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.

1 Answer

0 votes
answered by

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. 

Welcome to Q&A site for electrical and electronics engineering discussion for diploma, B.E./B.Tech, M.E./M.Tech, & PhD study.
If you have a new question please ask in English.
If you want to help this community answer these questions.