Answer Posted / mj

A. rotor resistance and reactance

When will you multiply and devide with derating factors to the actual value while sizing the cable?

1883

---

why 15 kw motor winding resistance is low then 5 kw motor winding resistance?

2786

---

Minimum IR value of 1.1 kv grade 3.5c (300, 240,185,150,120,95,70,50,35,25) sqmm Aluminium XLPE cable and 4c (16, 10,6 & 4) sqmm cu arm cable between RY,YB,BR,RN,YN,BN,RE,YE,BE & NE.

3298

---

what is transistors comprised of?

1085

---

I have 2 KW electric water heater.I am gonna use it in controlling water temp.so I needed to increase or decrease the heating capacity.is there any electrical-electronic circuit for varying the resistance & so current?

3188

---

What is the normal phase difference between the voltage and the no-load current in a transformer?

1183

---

If a high resistance fault occurs,then what are the changes will happen in the system?

1395

---

HOW DOES THE ELECTRONIC ENERGY METER WORKS?

2098

---

If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer

2660

---

what is the step by step formula for calculating bus bar phase and neutral size of a panel board.suppose the incomer of panel board is 100A..???step by step answer please

3655

---

Why space heater is required for each verical bus bar chamber? if one space heater is adequate or not for anti condensation?

2478

---

what is submersible pump?what is different between motor and sub motor?

1995

---

What is the pro & con of having 11kv & 33kv incoming, and what is the adv & disadv. of converting from 11kv to 33kv.

2769

---

when elecromagnatic waves are propogated in a wave guide?

1924

---

What are electric motors?

1103

---