Open and Short Circuit Test on a Single Phase Transformer

INTERNATIONAL ISLAMIC UNIVERSITY, ISLAMABAD

Faculty of Engineering and Technology

Department of Electrical Engineering




LABORATORY MANUAL

ELECTRICAL MACHINES - I

LAB No 03: Open and Short Circuit Test on a Single Phase Transformer

GROUP A

NAME REGISTRATION NO

HASSAN ALI 66-FET/BSCEET/F20

ABOUBAKAR BIN MUSHTAQ 67-FET/BSCEET/F20

MUHAMMAD AMMAR 63-FET/BSCEET/F20

ABDULLAH HAFEEZ 64-FET/BSCEET/F20




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, LAB NO:03

Open and Short Circuit Test on a Single Phase Transformer

OBJECTIVES:

The open-circuit test is used to determine the impedance in the excitation branch of a real
transformer. This test only measures the combined iron losses consisting of the hysteresis
loss and the eddy current loss.

The purpose of a short-circuit test is to determine the series branch parameters of the
equivalent circuit of a real transformer. This test measures only the full load copper loss

Required Modules:

 VARIABLE SINGLE PHASE
 AC SUPPLY
 VOLTMETER
 AMMETER
 WATTMETER
 SINGLE PHASE TRANSFORMER




1. Open Circuit Test:




Figure 1:Open Circuit Test Circuit Diagram




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