how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec.

0 Answers  

---

which type sylbuse involved

1 Answers   BMRCL,

---

how oil in the MOCB was reduced compared with OCB? what are the features of the MOCB?

0 Answers   Asahi, BARC, K-Electric,

---

whose motors self starting synchronous or Induction motor?give fact reason why not self starting another mother

2 Answers  

---

In Megger which types of test we can do ? and How it works? How to use?

3 Answers   Power Grid,

---

what is the use of the puls transformer in UPS & how it works???????????

0 Answers  

---

what is the exact direction of current? as we know current travels from higher potential to lower potential,so if we take battery +ve to -ve implies current direction is from positive terminal to negative terminal.,whereas electrons flow from negative to positive as they are attracted by positive ions.current will be the plow of charge but not flow of positive ions.please clarify my doubt friends.

2 Answers  

---

1.Defination of Graund earth and neutral 2.

8 Answers  

---

what is active power & reactive power?

0 Answers   Avtech, Jindal,

---

what is meant by distance protection ? how distance protection relay function ?

1 Answers   ABB,

---

how to calculate restraing current and operating current for differential protection if 20 mva transformer is OLTC 33 kv/11 kv ? and what should be the type and ratio of CT?

2 Answers   L&T, OPS,

---

Explain using drawings what is reverse PID action w.r.t PID controllers.

0 Answers   L&T,

---