Answer Posted / premkumar

Normal to Design DG p.f is 0.8, some person say Dg set to use APFC with Dual sense Relay for EB and DG side to improve the DG efficiency. Its wright or Wrong.

WHAT IS THE WORKING PRINCIPLE OF A GENERATER.how is a GTG (Gas TURBANE Generater) working.plz explane

2532

---

What does the letter CTNM in negative phase sequence relay means?

1829

---

How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).

1997

---

what is formula for calculate thermal overload in new numiricalrelay( not in bimetal relay)?

2320

---

why 15 kw motor winding resistance is low then 5 kw motor winding resistance?

2841

---

If a rotary UPS is in line through grid power; What would be the impact on Power Factor if the load through rotary ups is 25% , 50% , 75% & 100%. Will the power factor reduce with less load?

1886

---

can u give me a brief idea about power line carrier communication ??

1999

---

In our plant we have installed new MCC with ELR and CBCT which is detecting some leakage current in the system but it leading to some confusion when to check that in which feeder which is drawing current we put off the whole panel itself but still CBCT detecting some leakage current so can anybody ans me , where i am going wrong or how to detect whether its actual leakage or CBCT malfunctioning.

2270

---

what is static frequency converter?what is the function...of sfc...?

2254

---

what is the acceptable value of TAN DELTA and dissipation factor for 11kV, 1.75HP Motor?.

4188

---

How i can calculate current of cable according to ares?

2012

---

What should be the length of transmission line so that we can see/obtain the full sine wave of voltage??

1906

---

Why we use auxillary relay ? what is function of differential relay, directional o/c relay?

2205

---

How to see the inductance in a transmission lines

2150

---

HOW TO CALLICULATE RESITENCE,REACTANCE AND IMPEDENCE VOLTGE OF TRANSFORMER 13.33 KVA 144/240 VOLTS 93/56 A WITH FORMULA

1983

---