Answer / mahesh

emf indused in gen from 0 to 180 =+ve;180 to 360=-ve half cyle

Answer / naveen

Negative half cycle in a generator when conductor or roter magnetic field movement crosses between 180 degree to 360 degree of armature widening.

What types of high speed CMOS circuits have you designed?

0 Answers   Ansal Housing, IBM, Intel,

---

WHAT IS DIFFERENCEN BETWEEN CURRENT AND VOLTAGE?

5 Answers  

---

what is mean by dual digital protection in the relay field?

0 Answers   ABB,

---

L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.

0 Answers  

---

Why we are not placing c.B 's btwn generator and transformer.? what happens when generator gets disconnected from transformer when it is running @ full load?

3 Answers   Areva,

---

---

what is looping circuit in electrical lighting circuits?

5 Answers   L&T,

---

What is servo motor and what are the applications of servo motor?

0 Answers   BARC,

---

Meter p.t. ratio= 3×230/400 , c.t.ratio = 3×1 (2) A what is m.f.

0 Answers  

---

where was current transformer protection units used and why??

0 Answers  

---

Can u explain : how capacitor act when the supply is given is a.c and d.c. I know that when d.c supply is given then the capacitor charges and becomes open circuited. But please say about when a.c is given. I have seen that when a.c supply is given ,it charges and discharges, But when we plug in capacitor to our daily supply and take it out ,then we join those wires spark will appear,which seems charge is present ,but when a.c is given it should charge and discharge

3 Answers  

---

why the rating of dc generator is in kw where as rating of alternator is in kva?

3 Answers  

---

What is the value of specific gravity in charged lead acid batteries.

11 Answers  

---