Answer Posted / kc

To reduce the fault level

The fault on primary side ie Y (LLG)
Will reflect as a LL Fault

So fault current level will b less
No zero sequence current ll b appar on d secondary side

how you configure motorvision relay (L&T make)from DCS

4897

---

How to calculate the fuel consumption for 600kva DG genset which connecting with 25%load?

2130

---

What is inrush current?

1178

---

what are the differences between 'exhaust fan', 'heavy-duty exhaust fan' & 'super heavy duty exhaust fan'. what are their power ratings ?

2084

---

what are the major & minor faults that occur in an inverter and in UPS ? And how to repair and resolve them ?

2368

---

i have a 4 Mva transformer 34.5 kv / 480-277 v and i used 2 parallel 3200 amp bus duct for the secondary feeder using 3 ply of bus bar ( 3/8" x 5" ) as a common where the flexible link terminated and 6300 amps breaker for the main, the lower bus duct reaches 70 degrees and the upper bus duct reaches 55 degrees when i used thermal scanner. why the temperature is not balance when the load reaches 3600 amps.

1925

---

Star Delta Diagram with full description

2391

---

what is the IS foe lightning arrester?

2172

---

why are u join ntpc

2165

---

During Testing of Maintenance Free Earthing, How deep should be the Spikes of Earth Test Meter should be inserted in the soil(one spike is 15 Meter & Other spike is 30 Mtrs away from the Main Earth Electrode. Because, recently, we observed that when spike is inserted 3-4 Inch in the earth- results are better, If spike is inserted 1 feet deep than results are increasing.

1948

---

What is an 86-P or an 86-A trip

2078

---

What is the comparison between 30mA DP RCCB and 100mA DP RCCB and can replace it against 63A MCB

1599

---

what is the difference between neutral and earth

2109

---

We have two parts in generator, electrical & mechanical. how it works?

1966

---

working function importance of mdc meter

2167

---