Development of an Analog Electronic Wattmeter

The paper deals with the development of an analog electronic wattmeter which is simple in design and can measure power, from very low values to very high values, with simple modifications, at different frequencies and with good order of accuracy. It can also be used in the measurement of power of di...

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Bibliographic Details
Main Authors: Rehman, M., Saad, M.R., Ahmad, S., Ansari, M.S.
Format: Conference Proceeding
Language:English
Subjects:
Current transformers
Distortion measurement
Electrical resistance measurement
Electronic circuits
Instruments
Laboratories
Power measurement
Switches
Voltage control
Wattmeters
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Summary:The paper deals with the development of an analog electronic wattmeter which is simple in design and can measure power, from very low values to very high values, with simple modifications, at different frequencies and with good order of accuracy. It can also be used in the measurement of power of distorted signals and can be interfaced with out any loading error. Basically, it measures I cosPhi with good order of accuracy and effect of variation of voltage is taken care off by introducing a voltage sensitive resistance. By introducing electronic circuits at different stages, phase angle errors due to imperfections can be compensated. Output voltage, at the final stage, will be proportional to average power of the system.
ISSN:2159-3442
2159-3450
DOI:10.1109/TENCON.2005.301168