Answer Posted / hitesh choudhary

B) 3-phase 4-wire system

can we start slipring motor on star delta like we start induction motor ? if yes where will we connect ?

1904

---

Differentiate between ideal and non-ideal voltage sources?

1025

---

How they LT panel busbar size choose

1652

---

how to calculate maximum current

2264

---

How to calculate Grid rotor resistance(GRR) losses in slip ring induction motor?

4215

---

Calculate torque developed by the 3-phase, 5 H.P., 4 pole induction motor runs at 1500 rpm A 23 N-m B 21 N-m C 10 N-m D 0 N-m

5150

---

Is phenomenon of resonance is harmfull fr the machine? if not or if yes please explain it?

1864

---

What is the basic principal, by which DC voltage level is increased more than the supplied AC voltage during conversion. As upto AC level it is contorrled by firing anlge but after maximum level how is it possible.Please clear picture. OR we have to supply the higher level AC?

1900

---

How can maintain our H.T. motors used in cement plant. please send me procedure.

5093

---

A TRANSFORMER 440/400V,DELTA/STAR CONNECTED.THE NEUTRAL CONNECTED WITH GROUND CABLE THAT IS DIRECTLY CONNECTED TO THE PANEL,FROM PANEL IT IS CONNECTED EARTH PIT.IS IT RIGHT? IF IT IS RIGHT LEAKAGE CURRENT AFFECTED.SECONDATY IS PROTECTED WITH EARTH LEAKAGE RELAY.

2061

---

advantage of motor design on higher power factor . normally motors are designed for .8 power factor. what is advantage of designing at .88 power factor

1743

---

what is the IS foe lightning arrester?

2115

---

Does outdoor isolator loose connection cause short circuit current in that circuit? if yes then how ??

1657

---

11 kg trivevter meter has rating of -/5amps. And pt ratio11000/110v and is connected with 11kv ct/pt unit of cr ratio 75/5amps. And pt ratio of 11000/110v while checking accuracy of meter with HT Accuchek meter what value of PT ratio and CT ratio to be filled in Accuchek meter

1872

---

what is the difference between 2 way and 4 pole selector switch???

2367

---