Answer Posted / gmmani

TRANSFORMER OIL IS ONLY MINERAL OIL

Installation resistance for whole installation of 16 kva & 25 KVA DTRA a) Between each conductor b) between conductor to earth c) installation resistance for each apparatus, each conductor to earth d) earth resistance for the system of earthing

1909

---

what are the effects when a salient pole alternator is run at high speed like 3000 r.p.m?

2423

---

either water sensor or flow meter,how we observe the water level, f any other equipment are in market ?

1875

---

How to test Alternator stability test for REF relay

1472

---

I have experienced electrical maintenance HT ,but I completed be ECE ....can I apply c license or not ???? Pls help me friend s...

1570

---

what is difference between 5A and 100A CT constructional wise and operation?

3567

---

In which of the following case, the rotating magnetic field is reversed? A regenerative breaking B plugging C dynamic breaking D forward motoring

1965

---

Define filter?

1118

---

I want to replace the 3 KW DC motor with AC motor so what should be the rating of AC motor? Details Of DC motor to be changed with AC are - Kw - 3, Vf - 310, If - 0.15, Va - 400, Ia - 13, RPM - 2400

1815

---

why connecting surge unit in contactor coil

1877

---

How to select HT/MV cable size ?

2466

---

DESCRIBEPNEUMATIC SYSTM OF ASH HANDLING PLANT

5532

---

If i have two 3000 kW motors and the whole facility requires a 10 MVA transformer. What would be better installing two 5 MVA transformers(one for 1 motor ) or just a single 10 MVA transformer for both of them. Give reasons for your answer.

6116

---

Differentiate between kirchhoff’s first law and kirchhoff’s second law?

1060

---

What are the site acceptance tests for power cables, DG Sets, LT panels & 30kVA UPS ?

2387

---