how we select the fuse and OLR rating for 3 phase
induction motor from 1HP TO 100 HP?
Answers were Sorted based on User's Feedback
Answer / ram
See the full load Current,(It is written in the motor name
plate)
1st:set the fuse to be around 2*Full load current
2nd:Set the OLR to operate at 95% of FLC to get more
operating Life for your motor.
Note:Couple the motor to the load and see How many amps
draw and set it Higher the load by 5% and make sure the
Load current not grater than Motor Name plate current.
| Is This Answer Correct ? | 12 Yes | 4 No |
Answer / ranjan behera
rating of fuse=175% of full load current.
| Is This Answer Correct ? | 8 Yes | 8 No |
If you have an earth with pilecap then your resistance is really low. why and how?
V.c.b and a.c.b difference
what is LDR used in street light
2 Answers Cipla, Ram Infotech, Wipro,
What is 100% protection of generator? Why 95% protection is used not 100%?
magnetizer priciple
how synchronous condenser is used in place of synchronous generator with out negotiating IEEE standards? Can i use 3 generators as synchronous generators and 2 generators as a synchronous condensers in an IEEE 14 bus system with out disturbing the standards?
why transformer rating is always in KVA
why we use 50 hz frequency in india .. why not 60 hz
How much load can give on 1600 kva transformer 11kv/440
why motor burns ?
Role of active and reactive Power sharing in between two synchronized Generators, Droop Setting role ?
What happens to an electric motor if it has poor or no ventilation. Will it burn out? If it will, how long it will run before it burn out?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)