The storage battery, directly or indirectly, plays a vital role in the life of everyone today. In the industrial world it moves Materials, starts the engines of railway locomotives, control power systems, and performs and performs an infinite variety of special functions. In our personal contacts it starts our cars, provides light and comfort in railway coaches, and propels our golf carts. Whether seen or unseen, whether in a airplane or a mine it is a part of our way of life.
Key Features of Battery Chargers
These Automatic Battery Chargers are used, normally, for charging batteries for cars, trucks, and motorcycles etc. these batteries are usually of 6,12 and 24 volts up to maximum capacity of 120 ampere hour. These battery chargers have provision for providing different voltage outputs and different charging rates for various batteries. The chargers have got boost and trickle controls either in steps or in step-less version. The selection for any charging rate can be easily made through the selection of boost controls and since the chargers have got a tapered slope characteristics, the tendency to get battery over charger is eliminated.
Such Battery Chargers are required for stationery batteries in railways or in telephone exchanges or in other places where the batteries are used to supply energy to a system. These batteries may be used for operating circuit breaker through ancillary power sources in powerhouses or big generating stations. These battery chargers are designed keeping in view the ampere hour capacity of the batteries and the number of cells to be charged. We can always for such applications on request.
In this Float Battery Chargers an electric power plant or substation, the charger operates continually (24 hour per day), providing power for both “fixed” and intermittent leads, and maintaining the battery in a state of full charge. To do this, it maintaining the battery in a state of full charge. To do this, it maintains a constant voltage at its terminals up to the limit of its ampere capacity. This capacity must be equal to the average load on the systems plus a sufficient amount to recharge the battery in a reasonable if it should become discharge during an emergency. This latter factory is a matter of choice, but is suggested as being between 5 and 10 amperes per 100 ampere hours of battery capacity.
In a floating battery system the voltage value chosen is one which, through experience, has been found to keep the battery fully charged, but without appreciable overcharge.
For lead-acid types (a specific gravity of about 1.210 is usually chosen for this service) this value is 2.15 – 2.17 volts per cell (129 – 130 volts for a typical 60 cell battery). This is irrespective of the ampere hour capacity of the battery. It also applies to any temperature from the stand point to keeping the battery charged, once it is charge. At low temperatures, however, a discharged battery will recharge more slowly at this voltage, and it is permissible to use a slightly higher value.
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