Larsen & Toubro
Website:
larsentoubro.com
Job details:
- Should have knowledge of maintenance, trouble shooting & operation of auxiliaries for generator (upto 1000 MW) like single & double flow seal oil system, stator coil cooling water, lubrication oil system, jacking oil system, H2 & CO2 handling.
- Should have knowledge of electrical testing on stator & rotor manufacturing :
- Generator stator:
- Insulation resistance measurement
ii.DC winding resistance
iii.Tan delta & capacitance measurement
iv.Partial discharge measurement
vi.Core loop flux test
vii.ELCID
- Generator rotor :
- Insulation resistance measurement
ii.DC winding resistance
iii.Impedance measurement
iv.RSO
- Should have knowledge of generator routine & type test during dynamic condition:
- Temperature rise – heat run
- Open circuit test
- Short circuit test
- Sudden short circuit test
- Negative sequence & Positive sequence test
- THF & Voltage waveform deviation
- Should have knowledge of IEC, ISO standards for electrical testing of generator ( up to 1000 MW) & High-speed balancing of turbine / generator rotors
- Should have knowledge of Low speed & high-speed balancing of turbine & generator rotors
- Should have knowledge of assembly of rotors in high-speed balancing tunnel
- Able to visually check rotor
- Able to take TOP / Side clearance of bearing & rotor journal
- Able to perform alignment of rotor with motor shaft
- Able to trouble shoot issues pertaining in assembly process
- Can study P&ID, electrical drawings for maintenance & operation parameters
- Have a positive approach for trouble shooting of electrical, mechanical & instrumentation issues in generator testing, high speed balancing &
- Able to handle unionized workmen in shift, ready to work in shifts
- Additional Vibration category – 2 certification is preferable
- Able to handle customer at site for overhauling activities like in-situ balancing, electrical test on generator stator & rotor, calibration of instruments & operation/maintenance of auxiliaries, ready to travel at different sites
- Should have knowledge of basic instrumentations/transducers like pressure transmitter, pressure gauge, RTD, Thermocouple etc.
- Able to operate electrical testing kits like
- Insulation tester
- High voltage test set-up
- Micro-ohm meter
- PD kit
- Tan- delta kit
- Function generator
- 1- phase variac
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