восстановление ёмкости

The results of nickel cadmium accumulators (NCA) formation with the asymmetric and constant currents are represented. Accumulators formation with the asymmetric current allowed to reduce one-half the time of technological cycle of placing these accumulators in service, comparing with the constant current mode, with maintenance of their operational characteristics. Comparative characteristics of NCA operational parameters are given. After tests imitating exploitation conditions of accumulators, charging capacity of accumulators formed with the asymmetric current at current charge of operational mode is 46–49% higher than similar charging capacity of accumulators formed with the constant current.

Comparative results of capacity renewal of sealed nickel-cadmium batteries with asymmetric and direct currents after their long-term storage are represented. Capacity renewal with asymmetric current was carried out in an accelerated manner at average value of the charging current equal to 0,25C_rated. Capacity renewal with direct current was carried out at average value of the charging current equal to 0,1C_rated in accordance with Technical Conditions. Applying asymmetric current for battery capacity renewal allowed to half in comparison with applying direct current for this purpose – the number of necessary renewal cycles before accumulators would gain rated capacity.

The comparative results of nickel cadmium storage batteries capacity regeneration with asymmetrical and direct currents after their exploitation on the electric locomotives in the conditions of constant floating with current impulses are represented. The capacity regeneration with asymmetrical current was carried out rapidly, the battery was restored with charging capacity numerically equal to 1.2C_nom. The capacity regeneration with direct current was carried out in accordance with sendee schedule of electric locomotives' batteries when restoring them with charging capacity 3Cnom. The regeneration with asymmetrical current was carried out on the automated charging station CA3P-4,5-380/100- УХЛ-202. Usage of asymmetrical current for the battery capacity regeneration allowed to half the time of charge-discharge cycle in comparison with standard mode of the capacity regeneration, to reduce number of technological training cycles from 3-4 to 1-2, to reduce general time of battery rebuilding for exploitation to 1.5 times, to lower ecological load and power inputs at charging.