Answer / babu

ripple= unwanted ac signal
harmonics=other than fundamental freq

Answer / thran

Ripple is unwanted ac signal Harmonics is line distrub...

Answer / prajapati tarun r

Ripple: its not pure DC signal but some AC signal are added
Harmonics:it's a fluctuation of AC signal frequency

What is CRT (Contact Resistance Test) for Isolators or Dis- connector Switches? Why we performed it & whats the Testing procedure.

1 Answers   Siemens,

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can we identify the direction of power flow in transmission line by after only looking the tower

7 Answers   TNEB Tamil Nadu Electricity Board,

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why the transmission side of the generating transformer is always star??

5 Answers  

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What tests should i carry over on a newly rewinded DC Generator with voltage rating of 38 volts and current rating of 350 amps, to certify that the machine is OK?

0 Answers  

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1.what is the easiest way to convert AH(ampere hour)to watts?.

2 Answers  

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Alternator rotor earth fault relay circuit

0 Answers  

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when is the Ohms law is applicable?

11 Answers   ABB,

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0 Answers  

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what is pole slip ?

4 Answers   NTPC,

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In a transformer ,when voltage decreases current increases. but this is a violation of oms law.why?

15 Answers  

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why a three phase induction motor cannot run at synchronous speed ?

7 Answers   RUET,

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What is safety of Ht panel

0 Answers  

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