Answer / k.prakashchandra

CSR- control switch relay.It is used wherever supervisory
control function is employed(SCADA) for opening and closing
breakers.

why we are giving D.C. supply to field of an alternator, why can't we give the a.C. supply

12 Answers   APTransco, Proman,

---

What is reactance? what is the function in Auto transformer and why high leakage reactance?

1 Answers  

---

a transformer can have zero voltage regulation a)o pf b)1 pf c)lagg pf d)lead pf

2 Answers   SJVN,

---

we have one pumping station and 4.6 MW 7 no.s synchronous motors.so there is no required HT capacitor to improve power factor.But we have two no.s of 25 Mva power transformer connect to distribute the power for motors connect with 220 kv line.So i have required the HT capacitor to improve power factor at HT side i mean power transformer bus side.So please suggest how much HT capacitor banks required for same.

1 Answers  

---

Waht are the protection should be use in HT/ LT side of the same Xformer?

1 Answers  

---

what is differance between PT-100 and thermocouple?

1 Answers  

---

How much inductance or resistance require as a starter in series with induction motor of specific capacity(e.g. 5 hp) ? What is formula for it ?

0 Answers   Reliance,

---

defination of transistor controlled series capacitor

0 Answers  

---

to transmit 30kw of power at 30 km what is voltage required

2 Answers   Anglo Eastern, Merchant Navy, NPCIL,

---

What is the min and max ohmic value for earthing?

15 Answers   NewTek, Wipro,

---

what are corona losses

3 Answers   Siemens,

---

Who are the manufacturer for Nitrogen based Fire Protectio/explosion prevention for Oil Filled Transformers? India and international both?

0 Answers  

---