I have 1010 KVA Generator when i run the DG set for 5 to 6
hours the couplling (couplling joint in between engine &
alternator) bolts are getting loose what is the reason &
what is the remedy over this??????????
Answers were Sorted based on User's Feedback
Answer / cs reddy
Bolts are getting loose due to Vibration.
Vibrations may be due to :
a) Misallignment.
b) Improper foundation.
c) Improper Mass Balancing.
Is This Answer Correct ? | 10 Yes | 1 No |
Answer / manoj saah
Coupling Misalligment may be major reason.
So do allignment by using Dial Gauge and clearance should
0.05 mm.
Is This Answer Correct ? | 2 Yes | 1 No |
Answer / girish
Vibration is a main reason
1. Reduce vibration using vibration isolating mounts
2. use flexble coupling with lock nuts
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / rakshit
dumb people .... they have specified 1010 KVA ... which is
very high capacity.... high shear force exists if proper
rated engine is not coupled to generator ,,,, due to high
shear force.. wear in coupling.. wear in coupling... loose
studs... .. also greater vibrations is the cause
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / faisalabad
you may use self locking nut as well as suitable grate lock tight according bolts specfication
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / pavan
Use lock nuts. Because vibrations are unavoidable (but can
only be minimized), using lock nuts is always safe.
Is This Answer Correct ? | 0 Yes | 1 No |
Answer / nagarajan
I Think u can make use of pins in the nuts at specified
tight point of bolt.
Is This Answer Correct ? | 0 Yes | 1 No |
DRAW SFD & BMD OF SIMPLY SUPPORTED ,CANTILEVER, UNIFORMLY DISTRIBUTED BEAMS
2 Answers Nagarjuna Construction,
length l and width b is given for a rectangle.and the perimeter of a rectangle is denoted by p.another rectangle length is 2l and width is 3b and the perimeter of a rectangle is p1.find the ratio between those two perimeters?
SOMEONE POST THE MODEL APTITUDE QUESTIONS FOR MRF TYRES PLz pLZ pLZ ..Very urgent
What is the name given to portion of thermal energy to be necessarily rejected to environment ?
What is sheet metal work?
What is the difference between s.s to en8
You have to design a machine component. For what type of failure (ductile or brittle) you will design?
what is first law of Thermodynamics ? What is second law of Thermodynamics ?
How are the bearing numbers given?
Question for mech.engineer in dmrc
i have an iterview on 18 sep for bhel ,pls send some questions asked during interview during the earlier interview on 11th sep
What kind of paper airplane flies the farthest?