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.

Please log in or register to answer this question.

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.