Answer / sudhansu sekhar samal

BS 587:1957- specified in 11kv motor starter & controller

What is cogging and crawling phenomenon in motor.

2 Answers   DAE,

---

Why we use cosine angle for calculating power factor not in sine angle ?

4 Answers  

---

can any one explain about when EB supply failed then how the load will transfer onto DG's step by step.

1 Answers  

---

why capacitor using the induction motor?

5 Answers  

---

If we impress a dc voltage of 230 V on an unloaded 230 V, 50 Hz transformer it wi A give high secondary voltage B burn out C give secondary voltage as per K D none of these

1 Answers  

---

I am having a 1500 KVA transformer whose secondary current is 2086A and my connected load is 1000 KVA, I am having 400 KVAR APFCR for PF improvement what ratio of CT should i install in LT EB Bus to get optimum PF improvement?

0 Answers  

---

what percent do you derate your copper wire when you change from copper buss to copper wire

0 Answers   Gerdau,

---

you are a electrical student, why are you coming for software job.

4 Answers   TCS,

---

any one can explain the stages of a knee point which is taken during ct magnetising curve.

0 Answers   Tata Steel Limited,

---

I have 200 KVA Isolation Transformer for UPS input side. & ups was having 48% load, suddenly got short what will be the reason.

1 Answers   Mukand,

---

what is meant by residual over voltage & residual earth fault ?

0 Answers  

---

can we conduct the swineburne's test on a dc series motor? why?

0 Answers  

---