how a.c. genarator control power factor when its conected to grid supply by incrising or decresing excitation voltage.

1 Answers  

---

Why AC loads wont used in DC input supply? and Why DC loads wont used in AC input supply?

3 Answers   Bhel,

---

What is a differential amplifier?

0 Answers  

---

How to calculate the cable size in sq. mm. when the load is given in KW?

3 Answers  

---

What are the procedures followed for underground cable laying.....???

2 Answers   KSEB,

---

how one can design armature winding bothh front and back connection

1 Answers  

---

As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.

0 Answers  

---

what is the Pickup/drop off ratio in BCPU relays

0 Answers   DNJ Energy LLC,

---

Where I can get the sample question for post of Junior engineer electrical-II For RRB Bhubaneswar.

0 Answers   Noida Power,

---

why we use iron corn in transformer instead of wooden core

12 Answers  

---

IF we want to replace I/C bay at our 220 kv substation which is of 140 mw load capacity bay to be replaced by 400 mw capacity bay.other than CT(1200/1) what are the other equipment i have to replace.

1 Answers   Jindal,

---

why we use to transmit the power in three phases intead of single phase ?

5 Answers  

---