triplen currents?
triplen currents?
(OP)
hi all
How much important tacking in considration triplen current How could i calculate triplen current flows in neutral,to chose the neutral cable size?
What kind of loads create it ?
Is the electronic ballast of lighting creates triplen ??
Thank you.
How much important tacking in considration triplen current How could i calculate triplen current flows in neutral,to chose the neutral cable size?
What kind of loads create it ?
Is the electronic ballast of lighting creates triplen ??
Thank you.






RE: triplen currents?
RE: triplen currents?
How much important tacking in considration triplen current? This harmonic is related with the zero sequence and therefore impact the size of the neutral conductor, overheating transformers, motors, cables, etc. There are documented cases that this current could cause mis-operations of relays, protective devices or control units.
How could i calculate triplen current flows in neutral,to chose the neutral cable size? Perfoming a harmonic analysis using guidelines from standard such as IEEE-519, IEEE-1547, EN 61000, AS2279, BS G5/4, etc. There are several commercial software in the market that could facilitate this analysis.
What kind of loads create it ? None linear load including flurescent lighting ballasts,dimmers, computers, UPS, rectifiers, variable freq drives,battery chargers, etc.
RE: triplen currents?
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RE: triplen currents?
But when i have inductive load how could i find how many amps gona be created?
Is the star connection of feeder transformer helps to create triplen.
Is the sig zag connection prevents the triplen to create?
Thx
RE: triplen currents?
RE: triplen currents?
Inductive loads do not create harmonic currents. Non-linear loads create harmonic currents.
Bill
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"Why not the best?"
Jimmy Carter
RE: triplen currents?
RE: triplen currents?
How can i get the value of triplen current from the hormmoic presentage.?and is usefule to know the order of this hormmonic?
RE: triplen currents?
RE: triplen currents?
RE: triplen currents?
Check out back issues of EC&M magazine. { www.ecmweb.com } There have been numerous articles on triplen and other power-system harmonics. One caveat—the online material is without charts, photos or illustrations. You have to purchase the articles to get those.
RE: triplen currents?
RE: triplen currents?
RE: triplen currents?
Steve, don't even-order harmonics indicate DC offset in the waveform? That would seem to present its own set of problems.
RE: triplen currents?