Answer Posted / m.vijayaragavan

HI,

THE EAQUIPMENTS IN THE SUBSTATION ARE INSULATED EACH
OTHER WITH GAS. NORMALLY THE INDOOR SUBSTATION WE SAYING AS
GIS. .IN OUTDOOR SUBSTATION THE EQUIPMENTS ARE INSULATED
WITH AIR.

THANKS,
M.VIJAYARAGAVAN,
TECHNO ELECT LTD,
KOLKATA.

This is urgent!! What is a Thyristor-based 3-ways selector switch with Zero crossing control? how does it operate and where is it mostly found in a system?

1574

---

I Have 3 Phase 10 KW AC Alternator i found one phase weak, so what will be the reason & what action shouls i take to rectify the same.

1562

---

please tell me how a surge protector work on a DC 48Volt.? please describe briefly.

1371

---

There are Two questions about Steam Turbine Generator... What is HRSG bypass of LP, HP used for in power generation? In particualar, in the event that fault of HP bypass, there would be STG TRIP in operation but none on the LP bypass fault...what's the reason ?

1807

---

What is the two pole structure?

1421

---

---

why magnet has north and south poles only why not east and west and why we are considering as north and south poles? why cant we consider as east and west?

1497

---

Is it required to lay 2 runs of GI wires along with armoured cables from one power DB to another Power DB?

1474

---

BSNL TTA EXAM QUESTION

1769

---

Explain about technical and non technical losses in distribution system?

616

---

How to select the cable and voltage drop in circuit?

1179

---

Ratings of power transformer,Distribution transformer.

1093

---

What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?

1516

---

we can run 2phase as 3phase .what will be the differnce with respect to phase angle, power, current between the two modes

1604

---

What is earth?

1788

---

what is per unit calculation?looking for simple and strong explanation thk u

2076

---