NCCP - Ieeco.net

Governing Standards
HBL NIFE Power systems Ltd's batteries conform to Indian Standard IS 10918 and other relevant international
standards such as IEC, DIN, BS, KS, etc
Batteries are tested by third party, Canadian Standards Association for IEC 60623 standards.
System Guarantee
We have a full-fledged power electronics division which designs & manufactures chargers of any rating and
configurations, in both thyristorised and SMR technologies. This will give our customers the added
advantage of single point solution and system guarantee.
Electrical Performance Characteristics
Nickel Cadmium pocket plate batteries are the most reliable and rugged batteries available today. They can
withstand to a great extent any type of abuse like overcharge, deep discharge, even accidental reverse charge
and can be stored in any state of charge
Charging
These batteries can be charged by any known method and available charger like taper charger, constant
current charger, constant voltage charger, float or trickle charger. A dual mode charger which will recharge
a discharged battery at constant current and high
voltage boost mode and then bring it to constant potential float mode at low voltage to keep the battery in
fully charged condition, is ideal to get the best performance.
Current limit - max. 0.2C A
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Float voltage - 1.40 to 1.42 V/Cell
However, if single mode charger is already available, like in old systems or in locomotives, the battery can
be operated with constant voltage charging.
Recommended Charging voltage setting: 1.45 to 1.50V / Cell.
Discharge Performance
The rated AH capacity of a nickel cadmium battery is defined as the Ampere Hours available at 5 hour rate of
0
discharge to 1.00V/Cell end voltage at 20 C after charging at constant current of 0.2C 5 rate for 8 hours.
However, the performance or the actual AH available from particular cell type depends on the rate of discharge,
cell end voltage, temperature, type of charging, state of charge, etc.
The discharge performance table in this document gives the amperes available for the cell type for different
durations and cell end voltages. These data are true for standard charge of constant current at 0.2C rate for
5
8 hours, rest and temperature conditions and for new cells.
Also discharge performance data after long term float with constant voltage charging is provided.
If the actual conditions differ from standard, the expected performance will be different. Our application
engineering department will provide the details and further help you in selecting the optimum battery type for
your requirement.
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