Answer / anand kumar jha

an scr is controlled by gate but in diode it can not be
controlled.

Answer / 7anoter4

See:
http://www.onsemi.com/pub_link/Collateral/HBD855-D.PDF
and:
http://people.ee.duke.edu/~cec/final/node85.html

why we don't use earthing as neutral?

1 Answers  

---

In a 132KV Grid Station where voltage level is 132KV, here,  why the rating of Surge arrests installed 120KV ? 

1 Answers  

---

what is meant by leading or lagging power factor?like in capacitor power factor is leading and in inductor power factor is lagging

4 Answers  

---

1 amp means-how many electron flow per second. ?

2 Answers  

---

How the real power output is controlled in a Generator?

2 Answers  

---

---

What is ERD used in Elevators??

1 Answers   Emerson,

---

what is electronic regulator and how we can use that in fans?

3 Answers  

---

Why neutral grounding Transformer provided for generator?

1 Answers   Siemens,

---

In constant power region of 3-phase IM torque-speed characteristics, if frequency increases slip A does not alter B decreases C increases D none of above

0 Answers  

---

what is the full name of ELCB &MDB <MCB

2 Answers  

---

What is dc current source? Differentiate between ideal and non ideal current sources?

0 Answers  

---

WHAT IS THE PARTIAL DISCHARGE TEST?

0 Answers   ME,

---