Answer Posted / rajpal dhiman

For above application we use capacitor start motor.

I am having dual speed motor of cromton greaves make of 3.7 KW -1400 rpm and 5 KW - 900 rpm. Please let me know groups and winding connction for rewinding purpose.

1922

---

what is the benefit of floating our DC source? if i have two floating DC source of which 1 has a ref voltage of -21VDC and the other of -18VDC. can it be connected in parallel to share a common ref voltage? if not, how do i make both sources to be of common ref voltage? tks

1894

---

how can i change the rotation of the AC single phase induction motor and show me by diagram

1806

---

Do closed loops systems require manual input?

1217

---

what is the function of choke in the flourcent tube lights and why the colour is in white mostly in flourcent tube lights

1934

---

what are the types of electromagnetic forces developed in practical transformer?

2632

---

what is ramping rate of generator

2069

---

What are the necessary components of the feedback control system?

1225

---

why the earth is taken minimum in supplying? wather it the proportional factor to getting work any equipment or a power plant?

1891

---

how can we change the phase angle b/w two phase?

5177

---

What is Negative Potential Bias

2303

---

Difference of induction motor & servo motor ??

1826

---

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.

1947

---

how to find ratio of CT & PT in 66/11kv 12 mva supply system ? explain with calculation.

2410

---

what is alluminium arm in ab conductors

1994

---