Answer / p k gupta

AV MOTORS ARE EASILY MAINTAINED, COMPARED TO DC MOTORS,
WHERE BRUSHES ARE BEING USE.FOR HIGH TORQUE DC SERIES MOTOR
ARE BEST.

Answer / kiransinh.mahida

basic of ac and dc motor

What is the importance of setting TSM & PSM?

2 Answers  

---

how to Select Lighting arrester? What r the parameters to be considered for the selection of Lighting arrester ?

0 Answers  

---

What is working of Trip Ckt.Supervision Relay?

1 Answers  

---

what is the maximum load in MDB,SMDB and DB

1 Answers  

---

why the perameters of secondary circuit are more important then that of the primary circuit of induction motor?

0 Answers  

---

What Should be the rating of transformer used in 33KV substation?

3 Answers  

---

Between Turbo alternator and Hydro alternator which one is more difficult to cool and why?

2 Answers  

---

We have a 33/11kv switchyard having 12.5 MVA power transformer. We export & import power through this transformer. When we export power, the PF will be depend on GRID PF & when we import power the PF will be depend on our load PF. but the problem is that,when neither we export nor import but our 33KV vCB is in close position,our meter read the power factor 0.14 to 0.25 at that moment. So how can be we improve the power factor at that moment.

3 Answers  

---

how kva rating of transformer is calculated.

6 Answers   Fluor Daniel, Siemens,

---

why the LED of my electrical meter glows even after the line has gone. what actually the reason?

3 Answers  

---

Currently what is the highest capacity (MVA) of SPPg generator available in the market?

0 Answers   SPPG,

---

For R-L or R-C ckt,time constant formula is L/R and RC respectively and its unit is in sec.Pls tell me the derivation

0 Answers  

---