TUBELIGHT

When you switch on your tube-light, you may wonder if the switch is on the circuit gets closed and the light glows.But this not a fact.Now I shall explain the working of the tube-light.

TUBE-LIGHT

FITTINGS

STARTER

   The tube-light consists of mainly two parts :

• Starter-small cylindrical shaped.

• Choke -large square shaped also known as Ballast.

  

  CHOKE

  To understand the working of the tube-light,we must refer the circuit diagram.The basic circuit  
  diagram is shown below.

CIRCUIT DIAGRAM

PRINCIPLE:

The choke is a large inductor and it consists of a long copper winding over iron lamination. An inductor by nature has a tendency to throw back the stored current in it, every time the power through it is switched OFF.This principle is used in lighting a fluorescent tube light.

BALLAST INNER VIEW

STEP 1: When an AC voltage is applied to a tube light fixture, the voltage passes through the choke, the starter, and the filaments of the tube.
STEP 2: The filaments light up and instantly warm up the tube. The starter holds the current for a moment and then releases to break the circuit.
STEP 3: This forces the choke to kick back it’s stored current, which again passes through the filaments and ignites the tube light.
STEP 4: If the tube does not sufficiently charge up, subsequent kicks are delivered by the choke due to rapid switching of the starter, so that finally the tube strikes.

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