Answer / natha

in dc traction in mumbai.the starting torque required to pull train is large here series motor comes into play and after a desired speed is achieved shunt motor runs the loco.

Answer / seshadri

we use differential compoud motors in electric welding

Why DC Currents are not used in transformer?

4 Answers  

---

i want prepare power grid exam what are book we want refer for electrical ?

5 Answers  

---

What is the difference between the relay and the circuit breaker?

0 Answers  

---

How to select the cable size for the given load ?Pls explain the Formulae

3 Answers  

---

What will be advantage if we put some load in neutral of grounded star transformer & loadshortcircuit current,rated current of cable & MCB with example?

0 Answers  

---

two bolbs of 100w and 40w respectively connected in series across a 230v supply.which bolb will glow bright and why?

16 Answers   DRDO, PSPCL, Siemens,

---

Is it possible to get earth resistance value"zero" Ohm practically??? If yes,which type of earthing???

9 Answers   TATA,

---

how technical is calculated in 11kv line and lt line

0 Answers  

---

some time we open engine breaker 8.0 MW load but plant not trip. and another time engine open 4.0 MW load engine trip why? individually engine breaker open & individually emergency stop why difference?

0 Answers  

---

What is ignitor and why it is use in Hpmv lamp ?

2 Answers  

---

15hp,380v,31amp,3-ph submersible motor run at 250v what is The temperature rise of submersible motor

1 Answers  

---

why+ve is earthed in electrostatic precipitator in thermal power plant

0 Answers  

---