Answer / mpn

Switching is done by closing the apropriate contactor in
the circuit. Suppose you have a 30 KVAR capacitor bank, a
40 KVAR capacitor bank and a 50 KVAR capacitor bank. Each
will have a contactor in the circuit. If you want only the
30 KVAR capacitor bank in the circuit, you close only that
paricular contactor. If you want 90 KVAR, you close the
contactor for 40 KVAR and 50 KVAR banks.
Also, please note that there is a mistake in your question.
Nobody will use capacitor bank for reducing the pf. It is
used for improving the pf.

Answer / karthikeyan

by using automatic power factor controller it can be
acheived.

In what situations relays are used in Circuit breaker? In Above what rating of Circuit breaker the relays are used? Why relays are not used for CB like MCB?

0 Answers   Elektrotek,

---

Why we are using LA Rating 10kA in 66 kv substation

1 Answers   L&T, NMDC,

---

How many distance in distribution pole OR 33Kv line pole

2 Answers   Sail,

---

what is the reason of current flow in nutral although load is balanced (three phase equal current)

3 Answers  

---

What is the name of the winding to which supply is given?

0 Answers  

---

How to earth the star delta connected transformers?

1 Answers   UPPCL,

---

hi friends ,iam working as genset AVR service engineer in electrical field from past 2 yrs throughout india . i plan to shift in some other job without travelling in same field because i con't travel,i dont know what i do for that so please guide me what job is suited for me,how i can serch the job please anybody helpme iam totally confused

4 Answers  

---

Hello sir, pls send me hpcl technical test papers .i am. Appearing for the exam.

0 Answers   HPCL,

---

When MICC cables used ?

0 Answers   Clinga,

---

what is the function of step up transformer?

2 Answers   DEWA,

---

What will happen when we will connect lamp in between phase and earth. 

3 Answers  

---

In UPFC,What is the need for Dc link ( DC capatior)?

1 Answers  

---