Supervisor / Jr. Engineer - Generator Testing & HSB

1.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.

2.Should have knowledge of electrical testing on stator & rotor manufacturing :

a.Generator stator:

i.Insulation resistance measurement

ii.DC winding resistance

iii.Tan delta & capacitance measurement

iv.Partial discharge measurement

v.NFT of overhang winding

vi.Core loop flux test

vii.ELCID

b.Generator rotor :

i.Insulation resistance measurement

ii.DC winding resistance

iii.Impedance measurement

iv.RSO

3.Should have knowledge of generator routine & type test during dynamic condition:

a.Temperature rise - heat run

b.Open circuit test

c.Short circuit test

d.Sudden short circuit test

e.Negative sequence & Positive sequence test

f.THF & Voltage waveform deviation

4.Should have knowledge of IEC, ISO standards for electrical testing of generator ( up to 1000 MW) & High-speed balancing of turbine / generator rotors

5.Should have knowledge of Low speed & high-speed balancing of turbine & generator rotors

6.Should have knowledge of assembly of rotors in high-speed balancing tunnel

a.Able to visually check rotor

b.Able to take TOP / Side clearance of bearing & rotor journal

c.Able to perform alignment of rotor with motor shaft

d.Able to trouble shoot issues pertaining in assembly process

7.Can study P&ID, electrical drawings for maintenance & operation parameters

8.Have a positive approach for trouble shooting of electrical, mechanical & instrumentation issues in generator testing, high speed balancing &

9.Able to handle unionized workmen in shift, ready to work in shifts

10.Additional Vibration category - 2 certification is preferable

11.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

12.Should have knowledge of basic instrumentations/transducers like pressure transmitter, pressure gauge, RTD, Thermocouple etc.

13.Able to operate electrical testing kits like

a.Insulation tester

b.High voltage test set-up

c.Micro-ohm meter

d.PD kit

e.Tan- delta kit

f.Function generator

g.1- phase variac