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GUJARAT TECHNOLOGICAL UNIVERSITY
B.E. SEMESTER : VIII
ELECTRICAL ENGINEERING
Subject Name: COMMISSIONING OF ELECTRICAL EQUIPMENTS
Sr.
No.
Course Contents
Total
Hrs
1. Transformer: Testing procedure for HV testing ,Phase shifting/ phase group , Radio
interference, Ratio Test , Load loss ,Separate source voltage testing ,Induced voltage
testing , Impulse & Surge testing , Noise level & vibration testing , Short circuit
withstand test ,Tan Delta test , Core insulation voltage test, Measurement of
impedance ,Testing of auxiliaries & safety device , Oil testing , Classification of
testing methods , Testing of bushing. DC & AC Resistance measurement, Temp. Rise
test, Short circuit test, Dielectric test, Partial discharge, Insulation resistance testing.
Polarity testing, Short time current rating, Impulse & surge testing, Determination of
error & accuracy class, Power frequency voltage withstand test, over voltage inter-turn
test. Determination of polarization index for transformer. Drying out procedure for
transformer. Commissioning steps for transformer, Purification & Filtration Procedure
for Transformer oil. Troubleshooting & Maintenance of transformer.
08
2. Induction Motor: Testing (3-phase & 1-phase): Hammer test, Testing against
variation of voltage/current/frequency, Load test, NL & BR test, DC & AC,
Resistance measurement, Insulation measurement, Starting test, Temp. Rise test, Slip
measurement, HV test, Testing on auxiliaries, Vibration Test, Noise level test. Drying
out methods / Polarization Index / Hot Temperature measurement Degree of
protection (IP Grade) Commissioning steps for Induction motor, Heat Run Test.
Commissioning of Induction Generator. Troubleshooting & maintenance of induction
motor
06
3. Substation Equipments:
Bus bar Temp. Rise test, Rated short time current test, HV test, Power frequency
voltage withstand test, Impulse / surge testing, Vibration.
Earthing Earthing resistance measurement, Substation grid Earthing, Soil resistivity
measurement.
Isolator Testing Temp. Resistance test, Short circuit test, Charging current making &
breaking test, Inductive current making & breaking test.
06
4. Circuit breaker: Testing of HV/LV circuit breaker: No load Mechanical
Operation, Mechanical endurance test, Temp. Rise test, Impulse & surge testing, short
time current test. Short circuit making & breaking test, Line Charging current making
& breaking test, Cable charging & capacitor bank making & breaking test, Out of
phase switching, Short line fault test, and Electrical & Mechanical endurance test for
LT switch gear like MCB / MCCB / ELCB etc. C.T. & P.T. Testing, Relay testing,
Coupling capacitors, Station Batteries for D.C. Supply, Fire Shifting Equipments.
Testing & Commissioning of Lightning Arrestor, Substation Commissioning by
Thermograph. Troubleshooting & maintenance of circuit breakers.
06
5. DC Machine: Testing Voltage drop test or bar to bar test, Load test, Open circuit &
magnetizing test, Insulation resistance, Starting performance, Dielectric test.
Swinburne’s test, Hopkinson’s test, Field test, Separation of losses in DC shunt
machine. Temp. rise test & Heat run test Drying out process
Commissioning steps for DC machines Troubleshooting & maintenance
06
6. Synchronous machine: Testing
OC & SC test, Characteristics, Loss measurement, Temp. rise test , Over speed test ,
HV testing , Insulation resistance wave form interference , DC & AC Resistance of
armature & field winding measurement , Dielectric testing on armature & field
winding , Mechanical balance , Magnetic balance , Current balance , Phase sequence ,
06
Harmonic analysis , reactance & time constant , Speed torque current , Vibration &
noise measurement , SC test , Synchronizing circuit testing , Testing of voltage
regulators , Excitation circuit testing ,Voltage recovery test , Retardation test on load /
no load .Drying out procedure Commissioning steps for synchronous machines
Troubleshooting & maintenance.
7. Commissioning of transmission line & Cable: Derating of cable capacity, HV test,
AC & DC Resistance check, Insulation resistance, Impedance measurement, Location
finding technique for fault in underground cables (Murray loop test & Warley loop
test), Testing of open circuit faults in cables. Line charging, loading & Dropping.
04
Term work:
Term work shall be based on above syllabus.
Reference Books:
1. Testing, Commissioning & maintenance of electrical equipment By S. S. Rao, khanna publications
2. The commissioning of Electrical Plant by RCH Richardson (Chapman & Hall)
Commissioning of electrical equipments

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Commissioning of electrical equipments

  • 1. GUJARAT TECHNOLOGICAL UNIVERSITY B.E. SEMESTER : VIII ELECTRICAL ENGINEERING Subject Name: COMMISSIONING OF ELECTRICAL EQUIPMENTS Sr. No. Course Contents Total Hrs 1. Transformer: Testing procedure for HV testing ,Phase shifting/ phase group , Radio interference, Ratio Test , Load loss ,Separate source voltage testing ,Induced voltage testing , Impulse & Surge testing , Noise level & vibration testing , Short circuit withstand test ,Tan Delta test , Core insulation voltage test, Measurement of impedance ,Testing of auxiliaries & safety device , Oil testing , Classification of testing methods , Testing of bushing. DC & AC Resistance measurement, Temp. Rise test, Short circuit test, Dielectric test, Partial discharge, Insulation resistance testing. Polarity testing, Short time current rating, Impulse & surge testing, Determination of error & accuracy class, Power frequency voltage withstand test, over voltage inter-turn test. Determination of polarization index for transformer. Drying out procedure for transformer. Commissioning steps for transformer, Purification & Filtration Procedure for Transformer oil. Troubleshooting & Maintenance of transformer. 08 2. Induction Motor: Testing (3-phase & 1-phase): Hammer test, Testing against variation of voltage/current/frequency, Load test, NL & BR test, DC & AC, Resistance measurement, Insulation measurement, Starting test, Temp. Rise test, Slip measurement, HV test, Testing on auxiliaries, Vibration Test, Noise level test. Drying out methods / Polarization Index / Hot Temperature measurement Degree of protection (IP Grade) Commissioning steps for Induction motor, Heat Run Test. Commissioning of Induction Generator. Troubleshooting & maintenance of induction motor 06 3. Substation Equipments: Bus bar Temp. Rise test, Rated short time current test, HV test, Power frequency voltage withstand test, Impulse / surge testing, Vibration. Earthing Earthing resistance measurement, Substation grid Earthing, Soil resistivity measurement. Isolator Testing Temp. Resistance test, Short circuit test, Charging current making & breaking test, Inductive current making & breaking test. 06 4. Circuit breaker: Testing of HV/LV circuit breaker: No load Mechanical Operation, Mechanical endurance test, Temp. Rise test, Impulse & surge testing, short time current test. Short circuit making & breaking test, Line Charging current making & breaking test, Cable charging & capacitor bank making & breaking test, Out of phase switching, Short line fault test, and Electrical & Mechanical endurance test for LT switch gear like MCB / MCCB / ELCB etc. C.T. & P.T. Testing, Relay testing, Coupling capacitors, Station Batteries for D.C. Supply, Fire Shifting Equipments. Testing & Commissioning of Lightning Arrestor, Substation Commissioning by Thermograph. Troubleshooting & maintenance of circuit breakers. 06 5. DC Machine: Testing Voltage drop test or bar to bar test, Load test, Open circuit & magnetizing test, Insulation resistance, Starting performance, Dielectric test. Swinburne’s test, Hopkinson’s test, Field test, Separation of losses in DC shunt machine. Temp. rise test & Heat run test Drying out process Commissioning steps for DC machines Troubleshooting & maintenance 06 6. Synchronous machine: Testing OC & SC test, Characteristics, Loss measurement, Temp. rise test , Over speed test , HV testing , Insulation resistance wave form interference , DC & AC Resistance of armature & field winding measurement , Dielectric testing on armature & field winding , Mechanical balance , Magnetic balance , Current balance , Phase sequence , 06
  • 2. Harmonic analysis , reactance & time constant , Speed torque current , Vibration & noise measurement , SC test , Synchronizing circuit testing , Testing of voltage regulators , Excitation circuit testing ,Voltage recovery test , Retardation test on load / no load .Drying out procedure Commissioning steps for synchronous machines Troubleshooting & maintenance. 7. Commissioning of transmission line & Cable: Derating of cable capacity, HV test, AC & DC Resistance check, Insulation resistance, Impedance measurement, Location finding technique for fault in underground cables (Murray loop test & Warley loop test), Testing of open circuit faults in cables. Line charging, loading & Dropping. 04 Term work: Term work shall be based on above syllabus. Reference Books: 1. Testing, Commissioning & maintenance of electrical equipment By S. S. Rao, khanna publications 2. The commissioning of Electrical Plant by RCH Richardson (Chapman & Hall)