Answer Posted / srinivas

power factor defined as the cosine value of the angle between voltage and current(cos@),it is not change with voltage,thats why there is no effect on power factor.

Draw the DOL starter and star delta starter drawing?

2998

---

What is minimum phase system?

1148

---

Explain few advantages of electric traction system?

1135

---

when we decide to use soft starter drive or vfd drive in mcc to operate apump?

1983

---

what is the main difference between power devices and signal devices

2191

---

What is the ratio of Booster transformer?

2172

---

Why we use Electrical energy rather than any other type of energy, mostly? Explain behavior of open secondary CT and short circuited secondary PT in energized condition?

1870

---

Dear Brother can u tell the proper size selection of cable & the fault level calculation of braker, busbar etc. pls mail me at azeemk30@gmail.com

1933

---

why T/F winding temp measurement cts are odd secondary current ie,109A/1.2A/1.4A?

1867

---

How to calculate the fuse rating depend upon the DC circuit?

2865

---

1.what is the difference between transformer differential and busbar differential.2)why we are using 2 slope for trafo diif and 1 slope for busbar diff.3)what is the purpose of metrosil and stabilizing resistor in high impedance relay circuit.4)how metrosil reduce the peak volage.5)what is the funtion of stabilizing resistor

4872

---

What is the permissable nutral current of three phase system as per IS standards?

2116

---

Sir, My doubt on cable sizing calculation, Load:74 KW calculated cable 1 run 50mm2. Now client asking us to reduce cable size by increasing runs. Sir, My question now when my mind strikes with 2 options 1) Divide load 74/2 = 36 and calculate cable for 36+36 making it 2 runs or 2) Simply i can divide 50mm2 /2 ie. 2 runs of 25mm2 Please suggest me sir

1940

---

sir vizag steel ka junior trainee ka paper kitne number ka ayega

2249

---

what is d check in dg 1500kva

2127

---