Answer / vinodh.t

when the wave form of ac is pure sinosoidal wave than it
not contain any harmonic..but if wave distorted (not pure
sine wave) than that is if contain multipuls of fundamental
frequency component it is called harmonics ..and it cause
due to non-linear load such as thyrister controlled
rectifier etc

Answer / sridhar

multiple frequency component is a harmonic
levels of harmonic 1st>2nd>3rd>...

what happens when a power transformer neutral earthing broken???

11 Answers   MacLellan,

---

SSC JE ELECT.

1 Answers   CPWD, SSC,

---

what the purpose of data retrivala panel in substation

1 Answers   NCC,

---

What happens if there is no nuetral in the power system?

5 Answers  

---

what is "pu" in electrical engg.

4 Answers  

---

---

what is meant by MCB and MCCB? and what its full form?

7 Answers   Bajaj, JHM Hotels,

---

How to calculate ht side cable of 630 kva oil cooled outdoor transformer?

1 Answers  

---

A 400KVA ,50HZ TRANSFORMER IS TO BE OPERATED AT 50HZ.THEN KVA RATING OF THE TRANSFORMER?.

4 Answers   GATE,

---

374kvar capacitor bank connected across 600kw,6.6kv motor.what will happen if motor run at 50% , whether full kvar applied or half?

1 Answers   NTPC,

---

how can we change the supply voltage?

4 Answers   Areva,

---

What is the difference between generator and turbo generator - related to power gereration

1 Answers  

---

1.what is meaing of ups,and used in softwares and sud stations,and main partes in ups. 2.main partes of the Disel Genarator. 3.main partes of the chiller and safty equipments.

2 Answers  

---