Answer Posted / satish

Ring main unit is to be used in CSS(11kva or 33kva) or PSS. it consists of three circuit breakers either it is vcb or depends upon design.it has a three ways one is for incoming remain two for outgoing.in this the connection of incoming and outgoing based upon the CT ratio.for selecting of CT'S is depends upon knee point voltage.

what is the purpose of high speed earth switch in gas insulated substat

3049

---

how to compute kAIC?  with formulas...

4295

---

How many types of faults are there in 3 phase power system?

1141

---

What is the effect on power factor, shown by a trivector meter; incase of reverse phase sequence. If the power factor of a system is lag what meter will show in case of reverse phase sequence connected to the meter. and What in case of lead.

2376

---

When we use 3 terminal resistor?

1309

---

how much allowable resistance that can be difference in motor all coils?

2416

---

How can we design a HVAC Plant room which includes AHU,FCU,Chillers,Cooling towers, Pumps etc & how will they work? any Drawing if possible?

2398

---

How much pf maintan in dg set in 6o% load,when Dg runnig Neutaal Earthing removed what happen.

2042

---

How I can Compare 120v/60Hz versus 220v/50Hz ? Please tell me both advantage and disadvantage ......

2083

---

why capacitance effect is predominant in underground cable transmission and inductance effect is predominant in over head line transmission?

3728

---

In a flange coupling, the flange bolts are designed for

1174

---

If the feeder rating is 7.5 kw or 10 HP star-delta feeder, MCCB is taken as 63 a, contactors-32 a, how much will be the OLR rating or which range OLR should be considered when we concern about type-2 coordination?

2364

---

HOW TO CALCULATE AMPs OF CURRENT TRANSFORMER IN HT Panel

2470

---

What is a compensator?

1142

---

hi frnds can any one help me ? plz send me placement paper of IOCL of Electrical streem .... plz send ....its urgent....

1781

---