Answer / virendra joshi

There may be a minor leakage in , also please check the
mAmp of the ElCB if it is 100ma then there is a possible
chance of tripping on minor leakage.. i suggest you to try
with 300ma ELCB even if get tips then you have to check the
motor winding & connecting cable thoroly.

why we used.c source in the field of the alternator , why not a.c source.

1 Answers  

---

the voltage per turn of a primary winding of a transformer is the same as the voltage per turn of the secondary winding of the transformer. why?

8 Answers  

---

we hav seen in electric engine of trains only 1 wired slidng conecctn is there frm ovrhead line,howevr to complete a ckt in dc postv n negtv two conection has to b there...so where is tht negative is been connectd or where it is grounded...?

5 Answers   ABB,

---

I have a 600VA UPS for computer only. It holds for 20minutes only. 1. Can it be upgraded for longer period.? 2. Can it be used for one ceiling fan and a tube light? If yes, how to upgrade?

11 Answers  

---

how much Watt can we fully load a transformer

4 Answers  

---

---

what is the difference SCR & TRIAC?

13 Answers   TCS,

---

During Testing of Maintenance Free Earthing, How deep should be the Spikes of Earth Test Meter should be inserted in the soil(one spike is 15 Meter & Other spike is 30 Mtrs away from the Main Earth Electrode. Because, recently, we observed that when spike is inserted 3-4 Inch in the earth- results are better, If spike is inserted 1 feet deep than results are increasing.

0 Answers  

---

When generator connected, the circuit ELCB exploded. What is the reson?

3 Answers  

---

what is the purpose of measuring % impedence?

1 Answers  

---

How to calculate Temp from Resister from PT100 equation,

0 Answers  

---

Uses of induction motor

6 Answers   NTPC,

---

What does VVVF stands for in VVVF drive ? How does it differ from VVF drive?

8 Answers   HAL,

---