Interested to Buy Any Domain ? << Click Here >> for more details...
While starting a high capacity motor, it takes 6 times the
full load current. Why it doesn't trip relay or CB's in
that network?
- 4 Answers
- 7401 Views
- I also Faced
- E-Mail Answers
Answer Posted / sunthosh080
usually when you see the relay technical details there will
CLASS type (5-30)
When your motor is taking 6 times for 5 sec you have to
select 5. So that your relay doesnt trip during this and it
depends on the application also.
If it fan application , then it would be around 15-20.
If the relay is tripping during motor starting then it
CLASS problem.
| Is This Answer Correct ? | 0 Yes | 4 No |
Post New Answer View All Answers
what is the difference between pvc & fiber glass cables
How can we calculate strength of copper hich is supplying electric power to heater and in it hold the heater also and what r all types of forces which is acting on it...
How many wall/floor flange will i use in bus duct system if we have in our design a 35th floor building.
Why power factor should not be in leading (capacitive) mode of any load.
what percent do you derate your copper wire when you change from copper buss to copper wire
A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.
What is block diagram?
how to erect roof control panel?
pls tell what are doing the three phase motor star and delta connetion with circuit diagram and control wiring .
how to measure dc earth leakage current?
Actuality I have at home electrical panel with 220v 50hz, and I want to converter from there to 110v 60hz, to wiring on the half of my house. Also I like to keep another half of my house with the original 220v 50hz. What is the best and safety way to do?
On a 6 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 42 AH). What Shall be the current rating of DC MCB ?
ratings of lightning arrester
exolain the star delta connection
volts=230 c=10mf a=??
