Answer Posted / arshad iqbal

There are different types of isolators available depending upon system requirement such as

Double Break Isolator

Single Break Isolator

Pantograph type Isolator

Depending upon the position in power system, the isolators can be categorized as

Bus side isolator – the isolator is directly connected with main bus

Line side isolator – the isolator is situated at line side of any feeder

Transfer bus side isolator – the isolator is directly connected with transfer bus

how to calculate cable size in diffrent loads?

2062

---

can any one tell me about the Extra low voltage systems?From where we give supply to these type of systems??

1891

---

How to calculate LT XLPE CABLE for 11 kv / 433 v , 1000 kva oil type transformer system?

1906

---

How to measure the Harmonic Distortion of UPS ie THD?

2320

---

I had applied for JE in PSEB, Can you pls send me the Question bank for related to my field

1851

---

why T/F winding temp measurement cts are odd secondary current ie,109A/1.2A/1.4A?

1855

---

what is class of SPD and dittels of all class ?

2113

---

I am shobana from Chennai. I am having my personal interview on 19th Dec at Chennai.kindly mail me the questions to mail id shobana.shanthi@gmail.com

2361

---

What is a commutator?

1029

---

send me all basic electrical question and answers

2895

---

Why synchronous motor is used in power factor improvement,dc series in lift

1646

---

i want bhel placement paper for electrical if anybody having pl send to my id kavitha867@myway.com immediately

1964

---

What is the Good Earth resistance value of G.I & Cu. Chemical Earthing & Normal Pipe Earthing?

2312

---

If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for one second ,assuming temperature rise from 85 Deg. to 100 Deg , Then what will be the Aluminium Bus-bar size for 250A MCCB? Explain in detail.

2328

---

for what purpose the star point is done in ct

1392

---