Why are some relay circuts designed to have the ct current flow through the neutral instead of the phase wire, such as in some diff relays?

1 Answers  

---

Diff between power trans and generating transformer?

1 Answers  

---

for ac networks if the voltage wave form is V=Vm sinwt here the voltage Vm=230 for the frequency 50hz then the time period is 0.02 sec then for the time period 0.12 sec what is the voltage

4 Answers  

---

how can 3phase motor speed can be controlled without vvf drive?

1 Answers  

---

Why there is restriction to generated voltage to certain limit for example (now 18kv) ?

3 Answers   College School Exams Tests,

---

Do anyone know how can I calculate earthing for substation or do anyone know any software which I can use for this case

1 Answers  

---

resistance of transformer oil=?

1 Answers   HCL,

---

Hi,I am working in abroad for more than 3 years in a company operating with 11kv and 6.4 MW power. I need c licence in India,can I? some other says only i can get if i work for 2 years in india only! anybody kindly clarify by doubt.Thanks

0 Answers  

---

what is the difference between torque induced and torque load?compare them with respect to dc motor?

0 Answers  

---

salam, hi, how to calculate british temperature unit (B.T.U)?

1 Answers  

---

what is voltage, and how it makes the electron to move?

6 Answers  

---

how to calculate H.P of a moter from speed of a moter?

5 Answers  

---