Answer / sunny

u can run S.M. at any power factor u want by changing the excitation.

Answer / harshal nemade

synchronous moter run at all power factor as unity leading and lagging by chnging the excitation as
under excitation it is operates as lagging
over excitation it is operates as leading
at normal excitation it is operates as lag but reached to unity
at critical excitation it is operates as unity pf

How would you supply a single house hold load from a 3-phase supply coming out of a sub-station?

4 Answers  

---

if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .

1 Answers   BSNL,

---

transformer spections :: input voltage 0-110-230v; output volage 0-10-12-14v; amp=3A using CRNO CORE, capcaity=50VA primary turns = ? ; secondry turns =?

0 Answers   Bhel,

---

how many Classification of fire extinguisher

0 Answers   Juniper Networks,

---

how many bulb of 60watt at 300volt is used to maintain 0.25 amp.with valid reason?

4 Answers   Cords Cable, TATA,

---

125Kva Dg can take up how much amphere load.

7 Answers   Indian Railways,

---

How select ELCB for 32amp. socket having quantity 12Nos. We have to do this wiring in PLANT. Please Also explain the incoming cable specification.

0 Answers   Gulf Industrial Services Company GISCO,

---

What do you mean by boost voltage in case of battery charger?

3 Answers   MahaGenco,

---

In India,we use 230V,50HZ,where as many other countries use 110V,60HZ what r d advantages and disadvantages of each of them?

8 Answers   GVK,

---

what is the rating of a power transformer?

1 Answers   ACME,

---

What is the major difference between P.T. & C.V.T ? Why CVT is used in HT Transmission line in place of P.T.?

13 Answers   APGenco, OPTCL,

---

what are the major & minor faults that occur in an inverter and in UPS ? And how to repair and resolve them ?

0 Answers  

---