Do you know how to maintain a generator, if so what are
those maintenances?
- 4 Answers
- 10813 Views
- I also Faced
- E-Mail Answers
Answer Posted / nabil
Inspection of AC Exciter
Removal of Rotor
(1) Inspection of Stator winding, Stator Wedge Looseness
(2) Inspection of Stator Core
(3) Inspection of Shaft Journal and Shaft Corner by Visual
Inspection, Ultrasonic Examination, Magnetic Particle
Examination
(4) Inspection of Retaining Ring Outer Surface by Ultrasonic
Examination, Penetrate Examination, Visual Inspection
(5) Inspection of End winding
(6) Inspection of Collector Ring, Measuring of Collector
Ring
Groove Depth
(7) Inspection of Rotor Fan and Bolts, Coupling Bolts by
Visual
Inspection, Penetrate Examination, Ultrasonic
Examination
(8) Inspection of Field End winding
(Special) Inspection of AC Exciter
Carrying Rotor into Work Shop and Disassembly of
Retaining Rings
The difference from the 4th year inspection are below.
(1) Inspection of Each Wedge by Fluorescent Penetrant
Examination, Magnetic Particle Examination
(2) Inspection of Retaining Ring Inner Surface by
Ultrasonic Examination, Visual Inspection, Penetrant
Examination
(3) Inspection of Winding in the Slot Section
(4) Replacement of Pole to Pole Connector
(5) Inspection of Main Lead and Insulation cover Inspection
of Bolts by Ultrasonic Examination, Magnetic Particle
Examination
(6) Measuring of Inter Turn Voltage, High Potential Test,
Measuring of Winding Resistance
(7) Inspection of Coupling by Visual Inspection, Ultrasonic
Examination, Penetrant Examination
Overall Inspection for Stator Winding
Removal of Rotor
(1) Inspection of Stator Wedge Looseness
(2) Inspection of Spacer inside Stator Slot Section
(3) Inspection of Bolts for Endwinding Portion, Looseness
of Endwinding Tie, Looseness of Phase Connection Ring etc.
(4) Inspection of Sliding Structure (Water Cooled Stator
Winding)
- Periodical inspection, every month
the carbon brush length, cleaning the brush holder one
by one
| Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
sail kaott diploma ece ke interviw me qus.kis parkar ke aate hai aur G.S me kya puchate hai kya sameedyaan me kis parkar ke qu.puchate hai
Why the frequency of ac in india is 50 hz but in some other countries it is 60 hz.
I want the details about BHEL company examination.Can anyone able to help me please.
difference between servo motor and synchronous motor
What is a parabolic signal?
Why in 6 KV XLPE cable termination kit used and why not in 380 V xlpe cable same is not used
How will A Medium voltage circuit breaker(11 kV voltage level) operate under short circuit fault condition whether It is having short circuit release like Low voltage circuit breaker or relay should be given?
PLS MENTION QUESTIONS ASKED IN IOCL INTERVIEW FOR ELECTRICAL EGG??
what shall be no load voltage of 132/33 kV transformer ? is it 33 kv of 34.5 kV
How does a tertiary winding filter harmonic(espcially 3rd one) from entering into load system?
What are the advantages of nichols chart?
Define resonant frequency?
What is the function of RCBO? What are the different sensitivity ratings & each application?
On 400 amp factory load how kvarh capacitors provide
Is it a better option to procure screw type air compressor rather than reciprocating air compressor?If so, what is the reason?How should we select an air compressor(100 CFM)? Please mention the important parameters of air compressor.
