Answer / maddoxx

neutral in sigle phase line is the return path which is normally(off ckt) at 0 v.grounding is done for protection and current flows only during fault.Grounding is done basically on the non current carrying part of the device or system so if there is failure of insulation in motor or device the current also flows in chesis of device. so if we do grounding it flows impedance path) to ground(earth).and thereby protecting device from higher current.
in 3 phase line neutral has no current in balanced cond'n.But has in unbalanced.so this extra current can be bypass by connecting neutral to ground or to the supply neutral(which is also grounded).
"SO NEUTRAL IS A RETURN PATH(1 PHASE) AND GROUNDING IS A BYPASS PATH IN FAULT CONDITION ONLY"

what is the difference between 4pole & 6pole DC Motors & give advantage ?

0 Answers  

---

hi if anybody got model questions for cpcl Grade'A' electrical engineer position.send it to my mail please krishkumar22@gmail.com

0 Answers  

---

i want bhel placement paper for electrical if anybody having pl send to my id kavitha867@myway.com immediately

0 Answers   Bhel,

---

what is meant by real power,active power,reactive power & apprent power ?please explain it?

3 Answers  

---

Why the field rheostat is adjusted such that the voltmeter reads 380V

0 Answers   SRM University,

---

If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?

0 Answers   Nalco, NTPC,

---

if we have 320KVA Genset kindly advice how much load we can put it.

0 Answers  

---

Technical equations

1 Answers   ME,

---

The 3 phase 400 hp 440 volt slip ring induction motor do not take one phase amps why ? The motor is running good condition

0 Answers  

---

what is difference between AC VVVF drive & Dc VVVF drive explain their working principle?

13 Answers   Apollo, OPS,

---

how to find the resistance and gap volatage of the diode??

0 Answers  

---

I am an American living in Vietnam and I have recently gotten a refrigerator from Japan and it is rated for 100 vac, but the power here is 220 so I bought a voltage stabilizer it has a 1 kva output rating. Can you please tell me what the amperage is? I'm confused and without a working fridge.

0 Answers   BSL,

---