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This document contains an assignment with questions about electrical measurement instruments. It asks the student to describe the construction and working principles of thermocouple instruments, electrostatic and rectifier type instruments, single phase and three phase wattmeters, and single phase energy meters. It also asks the student to discuss errors and remedies in single phase wattmeters and energy meters, and derive the torque equations of single phase wattmeters and energy meters.

Engineering

NIET - GREATER NOIDA
Date of Allotment: 01-10-2014 Date of Submission: 07-10-2014
ASSIGNMENT-3/NEE-302(EMMI)
1. Describe construction and working principle of thermocouple instruments.
2. Describe construction and working principle of electrostatic and rectifier type
instruments.
3.
4.
5.
6.

12.
13.
14.
15.
16. Describe construction and working principle of Single phase and Three phase
Wattmeter.

17. Describe construction and working principle of single phase energy meter.
18 Discuss various errors and remedies in single phase Wattmeter and Energy
meter.
19. Derive the torque equations of single phase Wattmeter and Energy meter.
20.
21.
22.
23.

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