Answer / bivin shankar

in vcb the arc extinguishing medium is vaccum which is
having high arc extinguishing capacity .but in ACB the arc
extinguish medium is air which is having low arc
extinguishing capacity, so if we use the air circuit
breaker in the place of vcb the arc will not extinguish and
may cause the equipment damage.

what is the full form of ka (100A mccb KA)

1 Answers  

---

what is 11kv cable

1 Answers   bscpl,

---

what is the use of piston rings in the engine used for a generator...........

0 Answers  

---

why is  use the star and delta connection and difference

1 Answers  

---

why CFL lamp requires less electricity than a normal lamp?/

3 Answers  

---

why restricted earth fault protection can not operate for phase faults??as there will be a current in secondary of ct,when a phase fault occurs!

1 Answers   GMR,

---

A resistance, inductance & capacitance are connected in series between points A & B.The voltage drops across the resistance,inductance&capacitance are found to be 40V,70V&100V respectively. What is the total voltage between between points A&B (Vab)? a)210V b)70V c)50V d)230V

6 Answers  

---

What is UPS?

14 Answers   HSL,

---

can we use existing delta star with neutral grounded,step down(6.6kV/415V), 3 phase power transformer bi-directionally.

3 Answers   GMR,

---

1ampear me kitna watts hota hai aur elcb ka pura naam kya hai

18 Answers   Al Khayyat, Alpha G, BEC, Bhel, CGS, Electrical, Fiem, Firmenich, HLG Habtoor Leighton Group, Jash, Kandia, Maruti Suzuki, Minda, NTPC, ONEIC, Pace Process Controls, SMTC, SR, Sunrise Electrical, Sushil Enterprises, Suzlon, Voltage,

---

Why r u using pf panel. what the uses

0 Answers   Standard Chartered,

---

Haw to check conductivity of budbar

0 Answers   Adlec Power,

---