Abra AK-10, Руководство пользователя

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8
Transformers
Transformers in general are useful devices that assist in converting alternating current to either
increasing or decreasing AC voltage. They achieve these results through the process of induction.
A primary coil is feed with AC voltage, a non-conductive magnetic core or alternatively known
as a ferrite core is the housing for the wires to coil onto. The secondary coil that is parallel to the
primary coil which is not connected to the primary coil act as output for the transformer. The
electromagnetic forces moves the electrons and creates a flow of current and voltage that is either
higher or lower by the amount of windings that is in the primary and secondary wiring. If the
primary coil has fewer wires than the secondary coil it becomes a step up transformer with a low
current and high voltage output. In the case of the step down transformer the primary coil has
more windings than the secondary coil with a low voltage and high current output.
The formula used to calculate the Power of a device using the North American single phase power
is calculated in terms of Watts. Power = Volt * Current * (kW actual load power/kVA apparent load
power)
A Centered tapped transformer is what is currently supplied with this kit, they can be commonly
found outside on the power poles. A center tapped transformer is essentially as the name implies,
the secondary winding is wrapped around the ferrite housing with one end starting from the
bottom, the other end at the top and the center tapped wire is located in the middle of the winding.
Another interpretation can be seen as a pencil with wire wrapped on it, the wire starts at the eraser
end and ends at the pencil tip. A center tapped wire is located in the middle of the pencil that is glue
or fastened in at the center, almost like a potentiometer with a fixed wiper. This center cable acts
as the reference cable to reference the voltage; however in the kit the center line acts as the return
wire.
Here are some common wiring for transformers that are available in the market.
Common two wire in and
out transformer
Center tapped transformer
(Either 16v from top to middle or 16v middle to
bottom or 32 V across, same current)