Answer Posted / raul

TRANSFORMER RATINGS :
1.rating in (MVA)
2.no. of phases
3.frequency
4.voltage ratio
5.%age imepedance
6.type of tap changer
7.tappings range
8.type of cooling
9.CT arrangement
10.terminal arrangement
11.vector group
12.connections
13.weight of transformer
14.weight/quantity of oil
15.untaking weight(with bell cover)
16.untaking height(with bell cover) and wid HV bushing
17.transportation weight

why the starting voltage drop in a cable needs to be limited?what is percentage of the voltage drop allowed during starting?

1827

---

When we connect the large capacitor bank in series ?

1112

---

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.

3352

---

How to calculate VCB rating for 33KV ,25 MW Power line?

1754

---

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?

2042

---

What it the purpose of parallel phasing transfomers??

1998

---

Convert a star connected network into a delta connected network.

1124

---

We have Diesel generator of 200KW. fuel consumption is always same,even connected light load or full load. Is it right?

2174

---

why it is not advisable to run low rating (19KVA) DG sets in parallel for long durations even though they are provided with droop ckts (QDC)

1913

---

Why should we hire you over the others waiting to be interview?

2847

---

how to calculate the capacitor to maintain power factor?

2174

---

how oti and wti connections are different from each other?

2081

---

What is Negative Potential Bias

2309

---

what is alluminium arm in ab conductors

2004

---

there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit

1935

---