Answer Posted / tarun tewari

genrally co2.this is E class of fire mentioned on the
bottle/extingusher.one extingusher can be used in one or
more classes that is ABCDE.But procedure says initially
start extinguishing with co2 in meantime isolate that
circuit through CB or MCCB &then you can use A class of
extinguisher which is cheaper & more available.

how to interlock 3 nos MCCBs using under voltage coil. please provide me circuit diagram?

2601

---

What is the differentional relay...what is the work of this in power Tx. how it is works..

1920

---

What are the advantages of the three-phase motor over single phase motor?

1056

---

can we find the inductance of a induction motor?

1969

---

A 3 phase transformer's (Y-Y) Y and B phase is (Y and B connection not broken) broken from neutral and R and Nutral connection is ok, what will be the relay tripping and why

1963

---

how r charge carriers produced

2076

---

how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test. why transformer rating in always in KVA ? what ispositive, negative, zero sequence impedence? How ElCB tripping if Neutral touch with ground Why AC & DC capacitor are use in UPS ? why motor rating in KW? how to syncronize two dg sets

2173

---

what is difference between bus coupler and auto transfer switch

4166

---

how many synchronous motor are there in any power plant

1993

---

how can i change the rotation of the AC single phase induction motor and show me by diagram

1792

---

in power generator normaly voltagr betwween esth to neutral is 0 but my work place generator show the volatge is 60v any body know why? thanks

1886

---

for hipot test on 33kV busbar, we will test on 70 kV or 56kV, what is the acceptable leackage current?

1155

---

WHY RATING OF VCB NOT LESS THAN 630A

2612

---

lamination figures

1849

---

Any one can explaination about calibration with rotating sub standards?

2066

---