Interested to Buy Any Domain ? << Click Here >> for more details...
plz explain TSM and PSM.with example suppose ct ratio is
4000/5 and tsm is .15 and plug is at 3.75 if fault current
is 8000A.so how i find relay oprating time.
- 2 Answers
- 20789 Views
- College School Exams Tests, ME, I also Faced
- E-Mail Answers
Answer Posted / yvb
your PSM set for 3.75 means 3.75 times of your py.
current. if fault current is 3.75 times of 4000 i.e 3.75 x
4000 = 15000 A. your relay will operate in 0.15 sec.(
Primary Injection.)on Secondary we can say 5 x 3.75 =
18.75A flows through ur relay.
Now comming to ur case if fault current is 8000A ie. 2
times of 4000 or u can say 2 times of 5 A.
Then your relay will operate in 0.282 seconds.
| Is This Answer Correct ? | 6 Yes | 10 No |
Post New Answer View All Answers
please send me jindal previous aptitude and technical question and answer.my email id is deep_raj@live.com
How we calculate the current carrying capacity of H.T. cabel?
Why 9KV surge arrester having 7.65KV of MCOV?
What is deference between MCB & MCCB & ISOLATOR
Witch do depand of Power factor and theory of power factor?
The simple way of finding the leakage quantity and % in compressed air distribution system
How to calculate the fuel consumption for 600kva DG genset which connecting with 25%load?
What is the Temperature to be set in Thermostat provided in Marshalling box of the Transformer / Motor.
How many sprinklers should be in one pipe line?
WE HAVE THE DC RECTIFIER 1500A, INPUT VOLTAGE IS 3 PHASE. HOW TO CALICULATE THE LOAD? 3 PHASE SIDE EITHER dC SIDE. PLEASE SUGGEST ME
What test must you do before powering up a circuit that you have been working on?
How i can calculate current of cable according to ares?
What is the method of estamating of cable, CB,MCB ?
Why reactors use before incoming of ac vvfd drive?
What is the capacitance values of 132,220,400 & 765 kV current transformer
