How capacitor improves pf

0 Answers  

---

can any tell me why slope 40% and 80% is calculated in differential protection?

0 Answers  

---

how do u get less voltage in star connection

4 Answers   BARC,

---

While testing a ZCT what parameters have to check or measure?

0 Answers   Indian Railways,

---

Why we called L-G fault as line to ground fault why ground? suppose if a line falls on building roof then can we called these fault as line to roof fault? please explain why ground term is used here?

3 Answers   Bhel,

---

what are feeder pillars & panels?

1 Answers  

---

what is Anti-pumping?

0 Answers  

---

Sir we have 12.5 MVA(110/11KV) transformer (Y-Y) connected,which tripped showing earth fault,when we charged transformer it stood OK ,but on connecting 11 KV feeders it tripped showing earth fault.our service engineers found that the B phase and R phase phase connecting to neutral broken from HV OLTC(on load tap changer),and R phase and Neutral is ok.Dissolved gas analysis shows that accetline content is high,tan delta value is 12.My dout is it is an internal fault of transformer,why REF or diffrential relay is not acted?

1 Answers  

---

What type of isolation transformer used in UPS's?? It's Star-Delata Or Delata-Star????Why it is used????

6 Answers   Emerson,

---

Hi! iam Rajanikanth.Can u tell me FAQ's of AP TRANSCO.

1 Answers   APTransco,

---

are you hear the meaning of burden , excat meaning of burden in only one word

4 Answers  

---

how LVDT works?

2 Answers  

---