Answer Posted / chandrashekar g

form factor is the ratio of r.m.s value to average value of
any electrcial quantity
ff=r.m.s/ave. value
0.70vm/0.63vm=1.1 where vm=max.voltage

do u know the formula for finding emf of transformer

E=4*1.1*Øm*f*Np volts
where
1.1=form factor
Øm=Bmax*A
f=frequency
Np= no. of primary turns

so transmission depends on form factor

Load transfer in 11kv double busbar switchgear - operation.

1938

---

What is power factor why we should maintain the power factor unless what will happen

1896

---

What is the best thing to protect the motor from running over full current. CT or O/L or pressure transducer at the given pressure rating

1528

---

USE OF 8 WAY PAN ASSEMBLY

1945

---

Dear friends, i would like to know that what is the exact function of 'exciter winding' & 'aux winding' in Alternator?

1999

---

Why is it prefer to initiate circuit breaker failure by "86" lockout relay not by "94" tripping relay ?!

1787

---

How equivalent impedance is calculated in thevenin theorem?

1124

---

CBCT selection

2267

---

What are the special cables required for explosion proof wiring?

3548

---

What is distance between electrical panel to land ?

1516

---

PLZ EXPLIN ABOUT CLASS PS CLASS CT .WHY THEY R DESINED AND FOR WHAT PURPOSE?WHY OTHER CT CANT BE USED AS PS CLASS CT? EXPLAIN IN SIMPLE LAUNGAGE IF POSSIBLE PLZ GIVE CIRCIT DIAGRAM?EMAIL-RAJ_SINGH_0376@SIFY.COM

2257

---

What is the ideal position cooling fan inside the dc motor?

2077

---

what is the prosses for getting of 33kv licence (i have completed my engineering degree & working in 33kv substation for contract basis )????

1927

---

for 4 MVA , 33K.V/6.6K.V transformer. secondary side the connected load is 3000H.P. What is the rating of capacitor bank to be insttaled.

2566

---

what is formula to cal cute earth pit numbers and size of earth strip used in earthing?

2204

---