Answer / rahul

accrdng 2 this theorem if a source voltage and zero ammeter are interchanged the magnitude of current through the ammeter will be the same no matter how complicated the network.

what is the std. earthing resistance for 440V system or m/c, 33000/440 Volt substation? What is the std.?

2 Answers  

---

For Electrical / and Electronic Systems, when we say efficiency is 80%, then what happens to other 20% from the Power consumption.? I.e. what happens to this?

1 Answers  

---

What will be the output voltage of a transformer if it is primarily energized from a square wave voltage source?

0 Answers   HPCL,

---

On what basis no of earth pits are to be decided either for transformers or for equipment?

8 Answers   BEL, Reliance,

---

what are the precuation should be taken ahen installing power transformer,circuit breaker,current & potential transformer

0 Answers   Siemens,

---

What will be the total current for 300kva UPS if it runs on 40 to 45 percent load. Is there any formula for to calculate the exact load.

4 Answers   Sodexo,

---

What is hysteresis loss?

1 Answers   PWD, SPML,

---

How we can test the Smoke Detectors????

4 Answers   Emerson,

---

What is the advantage of Neutral graunding transformer insted of Neutral graunding Resistance in generating station explain briefly.

2 Answers  

---

1.why is +1+1=+2 why cant it be +3 2.Why is +1*-1=-1 why cant it be something else 3.why are the hilly areas more cooler than the ordinary areas?

5 Answers   ThyssenKrupp,

---

how much the voltage & resistance should be ,between earth & neutral points.?& why?

6 Answers  

---

What is Surge Capacitor? Why it is require in Generator Circuit Breaker,inspite of surge arrester?

0 Answers  

---