how wud i know that whether i have to use unitized package substation or transformer?

1 Answers  

---

WHY AREWE USING THE 3 1/2 CORE CABLES IN POWER TRANSMISSION

1 Answers   Phoenix Technologies,

---

how brushed dc motor operating ?

0 Answers  

---

how solar power plant energy meter multiplication factor

0 Answers  

---

why core of transformer in square or rectangular why not in circle or ellipse if this what happens

2 Answers  

---

---

Explain what is use of lockout relay in ht voltage?

0 Answers  

---

Explain how you intend to work under pressure to meet up with deadline target?

0 Answers  

---

why do select 11000v rubber mat even we use only 415Volts

1 Answers   Saint Gobain, Tata Steel Limited,

---

why dc did not flows to earth?

2 Answers  

---

Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . please reply..............

9 Answers   NTPC,

---

what is meant by differential protection of transformer

1 Answers  

---

what is intermediate switch

1 Answers  

---