USED for measuring the DC quantities and it gives the average of value of the QUANTITY being measured.If we apply AC current to these types of instruments, the direction of current will be reversed during negative half cycle.The direction of torque will also be reversed which gives average value of torque as zero.The POINTER will not deflect due to high frequency from its mean POSITION SHOWING zero reading.

"> USED for measuring the DC quantities and it gives the average of value of the QUANTITY being measured.If we apply AC current to these types of instruments, the direction of current will be reversed during negative half cycle.The direction of torque will also be reversed which gives average value of torque as zero.The POINTER will not deflect due to high frequency from its mean POSITION SHOWING zero reading.

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A PMMC instrument if connected directly to measure alternating current, it indicates

Electrical Engineering Indicating Instruments in Electrical Engineering . 8 months ago

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PMMC instruments are only USED for measuring the DC quantities and it gives the average of value of the QUANTITY being measured.If we apply AC current to these types of instruments, the direction of current will be reversed during negative half cycle.The direction of torque will also be reversed which gives average value of torque as zero.The POINTER will not deflect due to high frequency from its mean POSITION SHOWING zero reading.

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Posted on 22 Oct 2024, this text provides information on Electrical Engineering related to Indicating Instruments in Electrical Engineering. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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