why is only third harmonics is dangerous for electrical equipments?

3 Answers  

---

why in dc generator field rheostate kept in maximum position?

1 Answers  

---

how tan-delta test is performed?

1 Answers   GE, VDL,

---

what is meant by mimic diagram ?where it is used ?plz explain briefly

2 Answers  

---

What is the formula to calculate a three phase alternator

0 Answers  

---

---

fog produced due to?

2 Answers   MAHINDRA,

---

what is the function of step up transformer?

2 Answers   DEWA,

---

25 kva 3 phase dg how many current will take per phase , plssssssss reply me

3 Answers   Bharti,

---

how the length effects the ampacity of the cable? if a cable is carrying a current of 100A for 50m length then what will the effect on current if we double the length?

2 Answers  

---

1500Ah VRLA battery,if its weight is designed 125kg during maufacturing its weight is reduced to 85kgs,What will be impact on AH capacity,life & economy?

0 Answers   Bajaj,

---

What is the difference between security constraint unit commitment and security constraint optimal power flow?

0 Answers   College School Exams Tests,

---

Why NGR is provided in sub station?

4 Answers   MMS,

---