06EEL58 - Transformers and Induction Machines Lab Regulation 2006 - 2007 |
1. OC, SC test on 1- phase transformer: predetermination of efficiency &
regulation. Experimental determination of Equivalent circuit constants
and calculation of efficiency and regulation to be done to correlate
results obtained earlier.
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2. Sumpner’s test.
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3. Parallel operation of two dissimilar (different KVA) 1-phase
transformers. Preferably the experiment to be conducted on two
dissimilar transformers.
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4. Polarity test & connection of 3 single phase transformers in star – delta
and determination of efficiency & regulation – for balanced direct
loading for UPF. Polarity test to be conducted on both AC and DC
supply.
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5. Scott connection- for balanced and unbalanced two phases UPF loads.
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6. Load test on 3-phase induction motor- performance evaluation (Torquespeed,
HP- efficiency, HP-PF, slip-HP).
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7. Circle diagram of 3-phase induction Motor- performance evaluation.
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8. Draw the equivalent circuit diagram of a 3-phase I.M after obtaining its
circle diagram after conducting OC and SC test. from equivalent circuit,
obtain the machine performance parameters.
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9. Speed control of 3-phase induction motor by rotor resistance control
only (for two different values of rotor resistance).
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10. Load test on- induction generator.
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11. Load test on 1 phase induction motor.
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12. NL and SC test on 1-phase Induction motor.
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