Answer Posted / rashpal singh garcha

daily
1.physical appearance.
2.checking of silica gel colour (in breather).
3.sound of transformer.
4.oil leakage.
5.level of oil in conservator.
6.record oil and winding temperature.

quarterly
1.cleaning of transformer and yard.
2.tightening of hv & lv connection.
3.checking of bucholz relay,cleaning of glass cover.

yearly
1.dehydration of transformer oil.
2.check dielectric strength of oil.
3.check moisture content in oil.
4.check acidity test.
5.insulation resistance test.
6.resistance test of earthing pits.
7.protection check up.
8.tan delta test.

FEINGING DECREASES THE FLUX DENSITY IN THE AIR GAP. HOW?

2129

---

how can you calculate fault level ?

2330

---

for 11KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV UG system what will be typical per KM "R" "L" "C" parameter.

2396

---

In EB metering we face problem kva jump even in no load condition.can any one help to control this

1773

---

what are the types of electromagnetic forces developed in practical transformer?

2565

---

how maney type tempereture measurement ?

2198

---

PLS MENTION QUESTIONS ASKED IN IOCL INTERVIEW FOR ELECTRICAL EGG??

2359

---

How to calculate Ith (I thermal) for curent transformer

2030

---

What is the method of estamating of cable, CB,MCB ?

2101

---

I want to know how to calculate the size of electricity cable in building?

1951

---

What is PEC??Applications........

1910

---

does any one know where we can purchase insulation oil for high voltage oil filled cables

2273

---

Why there are some equipment(i.e:TV) that using 2-pin plug instead of three? What happen if there is current leakage? Are we going to get electric shock??

2121

---

Distribution transformer we provided 2 separate earthing pit for Body and 2 separate earthing pit for neutral,we can not connect separate body earthing pit to other earthing pit but we do metal glanding in secondary side cable termination in both side, transformer and PCC panel (LT Panel), is this safe for transformer and other equipment?

1677

---

how tto ingress mw in turbine explain.procedure ?

2215

---