To calibrate LPF Watt Meter, energy meter, P. F Meter using electro dynamo meter type instrument as the standard instrument
To determine unknown inductance, resistance, capacitance by performing experiments on D.C Bridges & A. C Bridges
To determine three phase active & reactive powers using single wattmeter method practically
To determine the ratio and phase angle errors of current transformer and potential transformer.
Course Outcomes
After completion of this lab the student is able to
to choose instruments
test any instrument
find the accuracy of any instrument by performing experiment
calibrate PMMC instrument using D.C potentiometer The following experiments are required to be conducted as compulsory experiments
1. Calibration and Testing of single phase energy Meter.
2. Calibration of dynamometer power factor meter.
3. Crompton D.C. Potentiometer – Calibration of PMMC ammeter and PMMC voltmeter.
4. Kelvin’s double Bridge – Measurement of resistance – Determination of Tolerance.
5. Dielectric oil testing using H.T. testing Kit.
6. Schering bridge & Anderson bridge.
7. Measurement of 3 - Phase reactive power with single-phase wattmeter.
8. Measurement of displacement with the help of LVDT. In addition to the above eight experiments, at least any two of the experiments from the following list are required to be conducted
9. Calibration LPF wattmeter – by Phantom testing.
10. Measurement of 3-phase power with single watt meter and two CTs. R16 B.TECH EEE.
11. C.T. testing using mutual Inductor – Measurement of % ratio error and phase angle of given CT by Null method.
12. PT testing by comparison – V. G. as Null detector – Measurement of % ratio error and phase angle of the given PT
13. Resistance strain gauge – strain measurements and Calibration.
14. Transformer turns ratio measurement using AC bridges.
15. Measurement of % ratio error and phase angle of given CT by comparison. R16 B.TECH EEE.