Answer / c.hari balakrishnan

SWITCHGEAR : -

There is no specified value of leakage current,Normally it
depends on how much load is connected.Normally it is in
milliamps.For example : In 11kV SWGR we highpot with 20bays
(indoor SWGR)we can get around 20 to 30 mAmps...

Cable: -

for cables normally we can get around very low Milliamps...

Answer / tharindu eroshan henadawithara

3 mA for 11 kv for my sites,and really it is possible in 3c240 xlpe/pilc joints(new ,short distance).
3c240 pilc possible with 8mA max(length and old)
dry country with under ground system.
no rain at all..(no effects from water,but may from see)

What is difference between slip rings and carbon burushes?

2 Answers   Hyundai, IVRCL,

---

what will happen if field winding of Synchronous generators given ac supply

4 Answers  

---

how to calculate the current capacity of a wire if its dimension in Square mm is given

1 Answers   TATA,

---

What type of wiring series or parallel is used for conventional and addressable type FAS & why?

0 Answers  

---

how we can adjust for three phase motor cold stall time ,hot stall time and thermal register set up?

0 Answers   OPS,

---

why we are using2 wave trap in a feeder?

1 Answers  

---

What is power factor?

3 Answers   L&T,

---

I decided to provide a 11KV / 440V Xformer in my Substaion. What are the protection required for that?

5 Answers  

---

why distribution transformer are of DY11 type?

4 Answers  

---

I have 2 KW electric water heater.I am gonna use it in controlling water temp.so I needed to increase or decrease the heating capacity.is there any electrical-electronic circuit for varying the resistance & so current?

1 Answers  

---

CAn any one can tell me what is the operation of ceiling fan and how it will start

2 Answers  

---

Why stand-by earth fault relay and restricted earth fault relays are connected between neutral and ground in transformer?

1 Answers  

---