Recommended charging current for KL storage batteries is calculated according to the formula:
Ich = Сrat 0,2
where Ich is recommended charging current, А.; Сrat is rated battery capacity, Ah (at series connection battery capacity is equal to capacity of one element).
It is more convenient to perform charging of storage battery by having set required current value. In case if charging device doesn’t feature current regulator or ability of operation at permanent current value, one needs to use charging voltage value regulator by setting the voltage at which current value corresponds to the recommended parameters. Exceeding of charging voltage more than 1,7 V per element is not recommended. In case of exceeding recommended charging parameters including current value, the amount of gases formed at charging is increasing, as well as periodicity of battery refilling with distilled water.
Nickel-cadmium batteries discharge graph
Maximal discharge current is calculated according to the formula:
Idis = Сrat × 0,5 (for КL)
Idis = Сrat × 1 (forКM)
Idis = Сrat × 10 (for КH)
where Idis is maximal discharge current, А.; Сrat is rated battery capacity, Ah
(at series connection battery capacity is equal to capacity of one element).
Storage battery discharge current considerably depends on consumer device. At selection of storage battery it is essential to know operating currents of consumer device in order to select the type of storage battery in a proper way: KL, KM or KH.
Principle of alkaline storage batteries recovery using suggested devices lies in devices being able to operate in regime of charging with asymmetrical current, i.e. when bipolar asymmetrical current impulses are fed to electrons of storage battery. Due to charging in this regime, process of electrochemical oxidation of active mass on the surface of positive electrode, as well as inside it, is carried out with the same speed, and the electrical charge carriers’ transmission in p-semiconductive layer of nickelous hydroxide grains improves. This regime allows restoring storage battery capacity by performing quasi-charge/discharge cycles.
Device may operate not only in regime of capacity recovery of alkaline storage batteries. It can be easily switched to a normal operating regime, which is used for on-line service, preventive maintenance, performing of conditioning cycles, charging or if one needs to discharge alkaline nickel-cadmium, nickel-iron and lead-acid storage batteries with gel or liquid electrolyte.
Device may operate with one or two batteries simultaneously – one, for cars with conditioning (110 V), another, for cars without conditioning (50 V).
Operation is based on the high-quality energy conversion principle with the use of static speed keys and high-frequency ferrite transformers, due to which adjustment range of process parameters is significantly increased in comparison with analogues, while size dimensions are decreased as well as the weight of device itself.
Automatic operating mode means that device operates according to preliminarily set program, and the programs are coded for each battery type for optimization of recovery processes parameters. Addition of new programs is possible, if needed. Manual operating regime is also available;
Power regeneration. During discharge processes, recuperation of released power is carried out with the subsequent regeneration of energy to a network or to a storage battery group.
Microcontroller control system with the ability of remote control.
Remote control of group of devices from one terminal via serial interface RS 485 (RTU Modbus).
Fully-featured remote monitoring of parameters of occurred processes with concurrent electronic logging and subsequent archiving.