Answer Posted / bhupal singh

Power Factor is the property of load. Generator is a source
of power. So it can not be corrected thru generator. However
Synchronous generators can regulate power factor by
adjusting it's excitation current.

234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,

2005

---

For a three phase induction motor, what will be the effect on motor if the neutral of the system is shifted to say 20 deg.?

1809

---

I am having a 1500 KVA transformer whose secondary current is 2086A and my connected load is 1000 KVA, I am having 400 KVAR APFCR for PF improvement what ratio of CT should i install in LT EB Bus to get optimum PF improvement?

1733

---

Can an inverter be used as a converter? How?

1928

---

how to decide no of electrodes for 1600A LT Main incomer panel

1634

---

What are the conditions to be satisfied for parallel operation of dc generators?

1073

---

what is the purpose of high speed earth switch in gas insulated substat

2973

---

bsnl tta exam question

1860

---

What are the main advantages of generalized error co-efficients?

1152

---

Brief me about maintenance planning & sheduling of machine tool.

2119

---

how dia of wire and angles are calculated for overhead shielding wire to protect substation equipment from lightening strokes???

2010

---

why we used dc supply for field in dg set

2365

---

why sielent pole is used only in hydro generators and not in turbo generators

4161

---

Which motor is 3.3 or 11kV more reliable, in terms of efficeancy,maintenance, reliability.

2094

---

if a.c supply is given to the motor,, what happen?

2131

---