What is the safety factor is to be consider while selecting
the switchgear and protection for electrical system
- 1 Answers
- 3891 Views
- I also Faced
- E-Mail Answers
Answer Posted / guest
Generally when we consider a power system we need to
consider all the components trs gens and tr.lines.The
safety factor is defined as the ratio of min.fault current
to excite the relay/ desired value when the desired value
exceeds the relay operates, It is >1
| Is This Answer Correct ? | 1 Yes | 3 No |
Post New Answer View All Answers
What is effect on in zone and out zone fault if CT chosen for phase side is Vk/2<5mA and Neutral side is Vk/2<15mA on REF protection of Transformer
send me any model test paper of clerical post of state bank of india.......
Why control of DC motor is simpler?
in india per day how much power is generated including all power station
surge tank, hrc fuse, earthing transformer, firm power objective type
Why GRR starts from 60% of motor speed why not less than 60%?
-What should be minimum value of insulation resistance and maximum value of earth resistance at any electrical instillation and what is method of testing the same.
How much ph is maintained of water electrolyte which is used in LRS for 1200 kw slipring induction motor ?
How can we measure the residual voltage in dc machines?
how to Select its CORE in electrical cables based on its applications? or Application of various types of electrical cable based on it CORE?
State the other types of Air Conditioners?
features of hbc fuses
WE ARE PLACE A NEW 75 KW MOTOR FOR JPF.IT IS CONNECTED IN M.C.C. WHEN WE ARE STARTING M.C.C.INCOMER IS TRIPPED.THEN WE ARE CONNECTED IN P.C.C WITH A MM30 RELAY PROTECTION THEN WE ARE STARTED MOTOR WILL RUN SMOOTHLY.
What do you mean by transformation ratio of instrument transformer?
how to ctrl motor by use of ac or dc drive.plz explain evdintly
