What is the capacitor?

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 The Capacitor.         A capacitor is formed when two conductors, usually of aluminium, are separated by an insulator sus as paper ect. For use in motors the strips are rolled together into a compact unit and placed into a sealed metal or plastic container. This may be either cylinderical or rectangular in shape and may be mounted on, in, or away from the motor. Two terminals or leads are provied for connection. The name capacitor is descriptive of the operation of the device. The capacitor acts essentially as a storage units that is,has capacity to store electricity and provides a leading current to the auxiliary or starting winding. All capacitors have this quality and all are electrically the same;they differ only in mechanical construction.     THE OIL-FILLED CAPACITOR                 This capacitor is used mainly in the permanent-split capacitor motor and for the two-value capacitor motor. The capacitor use an oil-impregnated paper as the dielectric and are permanently conne
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Direct on line starter.

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Direct on line starter.
      This starter gives the line voltage direct to the motor. It dose not reduce the voltage. This starter is used up to 5H.P.  To connect the motor from the I.C.T.P. main switch or isolator is sufficient but the starter has the following advantage:-
  (A) The motor can be made on and off quickly.
    (B)It cuts the motor from the line on overloads.
    (C) It prevents the motor from burning on single phase.
   It has the following parts:
   (1) Three straight strips which join the line direct to the motor. When "On" push is pressed these strips contact the lower strips.
    (2) Forth strip works as interlock switch I.e when " On" posh is released after pressing,the 4th strip passes the current.
    (3) Overload relay. This has thick wire like heater from which if more than normal current (in any one phase) flows then heating element becomes hot and the bimetallic strip placed inside it bends and it opens the overload switch which opens the circuit of no volt coil and all strips come to their original position and the motor stops.
     (4)Their is one current adjuster on the upper side of bimetallic strips to set the current by which the starter may be adjusted on any current such as 2amps, 5amps etc.

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