20-04-2012, 01:21 PM
WATER LEVEL CONTROLLER
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. INTRODUCTION
NECESSITY OF WATER LEVEL CONTROLLER
During these days of high rise Buildings, apartments,Commercial houses and Industries, it has become necessary to store water in overhead water storage tanks.Since water pressure in most localities is not sufficient,water is pumped from ground level tank to overhead tank for storage & use. It is very difficult for someone to monitor water level in ground and overhead tanks and switch On OFF water pump accordingly.
So a water level controller prevents overflow & dry running of your water pump, thus saves water, electricity & manpower. Once you install this system you can relax & enjoy autoworking of your pump.
APPLICATIONS
Automatic Water level Controller for Hotels, Factories, Homes Apartments,
Commercial Complexes, Drainage, etc., It can be fixed for single phase motor, Single Phase Submersibles, Three Phase motors. (For 3 Phase and Single Phase Submersible Starter is necessary) and open well, Bore well and Sump. Many models available in different ranges.
APPLICATIONS
CIRCUIT COMPONENTS DESCRIPTION
TRANSFORMER
A transformer is a device that transfers electrical energy from one circuit to another through inductively coupled conductors—the transformer's coils. A varying current in the first or primary winding creates a varying magnetic flux in the transformer's core, and thus a varying magnetic field through the secondary winding. This varying magnetic field induces a varying electromotive force (EMF) or "voltage" in the secondary winding. This effect is called mutual induction.
If a load is connected to the secondary, an electric current will flow in the secondary winding and electrical energy will be transferred from the primary circuit through the transformer to the load.
By appropriate selection of the ratio of turns, a transformer thus allows an alternating current (AC) voltage to be "stepped up" by making NS greater than NP, or "stepped down" by making NS less than NP.
In the vast majority of transformers, the coils are wound around a ferro magnetic core, air-core transformers being a notable exception.
Transformers come in a range of sizes from a thumbnail-sized coupling transformer hidden inside a stage microphone to huge units weighing hundreds of tons used to interconnect portions of national power grids. All operate with the same basic principles, although the range of designs is wide. While new technologies have eliminated the need for transformers in some electronic circuits, transformers are still found in nearly all electronic devices designed for household ("mains") voltage. Transformers are essential for high voltage power transmission, which makes long distance transmission economically practical.
CAPACITOR
A CAPACITOR (formerly known as condenser) is a passive electronic component consisting of a pair of conductors separated by a dielectric (insulator). When there is a potential difference (voltage) across the conductors a static electric field develops in the dielectric that stores energy and produces a mechanical force between the conductors. An ideal capacitor is characterized by a single constant value, capacitance, measured in farads. This is the ratio of the electric charge on each conductor to the potential difference between them. Capacitors are widely used in electronic circuits for blocking direct current while allowing alternating current to pass, in filter networks, for smoothing the output of power supplies, in the resonant circuits that tune radios to particular frequencies and for many other purposes