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File:Coil explaining.jpg

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English: One of frequently asked question is about lamps blinking during starting device containing coil. This phenomenon is quite widespread in old buildings with old thin wiring.
  • Let's consider more close:
  • What influences to current's value if voltage is constant?
  • -Due to Ohm's law - resistance.
  • What forms resistance in the coil?
  • -Self-induction's current resists to current's gaining.
  • -But what is about first 1/2 sine wave?
  • -As there is missing self-induction current, only wire resists to current's gaining; it means that start current will equal to short-circuit mode. As for buildings with old wiring (where wire gauge is not enough), voltage can squat to 15% or even 20% and lamps begin to shine weak in starting moment.
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Author Dmitry G
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current20:05, 17 August 2010Thumbnail for version as of 20:05, 17 August 2010665 × 410 (87 KB)Dmitry G (talk | contribs){{Information |Description={{en|1=One of frequently asked question is about lamps blinking during starting device containing coil. This phenomenon is quite widespread in old buildings with old thin wiring. *Let's consider more close: *What influences to

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