Answer / prajapatsuraj306@gmail.com

Single phase differences are two phases 90 ' and Three phase differences are 120' and Three phase , Three wire ( R, Y, B,)
= sin 120+ sin120+ sin120
= 2.59
and Three phase Power
= 1.732 V I cos Q
= v I and cosQ is imagine part because they are value depand on circuit
= 2.59*1.732
= 450 volt

why we r using 4-20ma instead of 0-20ma in instrumentation

2 Answers   EID Parry,

---

What is percent age of scrap of wires as per IE Rule Clause No in wiring for House and Industrial wiring ?

3 Answers  

---

if field winding of synchronous generator are shorted on each other will it start or burn or run for short time like induction motor

1 Answers  

---

Material commonly used in making transformer core is A cast iron B mild steel C high silicom steel D high carbon steel

1 Answers  

---

What is the purpose of stand by earth fault protection for transformer ?

0 Answers  

---

what is the acceptable insulation resistance for motor/transformer?

2 Answers   Reliance, Tata Motors,

---

How we Use DC Power in Transformers? is it possible ?

6 Answers  

---

Describe the test procedure to determine the vector group

0 Answers   MPSEB,

---

what is power factor?

9 Answers   MAHINDRA,

---

if any house we instaled a 1.5 ton ac and its phase cable of wiring is installed but netrual cable of wiring not instaed. my question is that is neutual of house(for other wiring is capable for ac load or a sepeart neutrual wiring required

0 Answers  

---

Is your generator is automated or manual if so do you know the circuits?

7 Answers   RRB,

---

Spacing of Transformers ratings are 10kva,15kva,25kva,63kva,110kva,150kva .........so on Q) Why transformer are not manufactured having ratings in between or other than these standard ratings ?

3 Answers  

---