Answer / vishv shah

sry...for that wrong ans.......for
low voltage(1 phase - 230 volt)
operation! IM needs some mechanical
machine to start the motor but while
in high voltage(3 phase - 440 volt)
their is no any requirement like in
low voltage.....so........because
in high voltage rmf is generate to
start the motor

Answer / vishv shah

as u know that IM run only because
of rmf .....rmf is produce because
of 120degree phase difference
between r;y;b......in 1phase i.e at
230volt no rmf is generate so.....!
IM can't run.......

what happens if earth of 33kv cable is not connected to earthing pits? please send this query's answer to ngrm.sudha249@gmail.com

0 Answers   Bhel, CFL,

---

What is the meaning of capacity of a 63 Amps TPN MCB? Is it the per phase capacity or the totol capacity?

1 Answers   Mother Dairy,

---

what is the value of combined earthing in general electrical circiut?

0 Answers   Cathtect Engineering,

---

what is the last range of mccb in amp?

2 Answers  

---

WhY PF low at Time of PT Missing in HT Meter

2 Answers   HCL,

---

Why the voltage n frequency of the incoming generator is kept slightly higher than d grid voltage n frequency while synchronization ?

4 Answers  

---

BRIEFELY EXPLAIN MEGGAR PRINCIPLE

2 Answers  

---

what is the significance of positve n negative voltage regulation .on alternator

1 Answers   TCL,

---

As per the Anchor capstan motor specification, full load current is 200A. starting current is 1750 A and acceleration time is less than 8 seconds. Please guide for selection of cable size.

0 Answers  

---

You are of electrical field and you are going for software? Why

0 Answers  

---

Hi.I want to ask how to calculate contactor rating current? for example I have 460 V , 100 A (induction motor) calculate contactor rating current?

2 Answers  

---

Define what is difference between fuse and breaker?

0 Answers  

---