Alpha Technologies Industrial Ni-Cd Batteries Standard Range - Manual (Page 5)

EN-ALPHA-TMSR-001 (10/09) 5
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Figures, Graphs & Tables
Fig.1-1 Cutaway view of battery ...................................................................................................................................6
Fig.1-2 Battery vents .........................................................................................................................................................7
Fig.1-3 Battery terminal cross-section ........................................................................................................................7
Fig.1-4 Components of the Electrode plates ...........................................................................................................8
Fig.1-5 Electrode plate linkage .....................................................................................................................................8
Fig.7-1 Terminal connection with Nuts ................................................................................................................... 24
Fig. 7-2 Terminal connection with Screws .............................................................................................................. 24
Graph 4-1 NiCd-cell performance varation with temperature ............................................................................. 13
Graph 4-2 NiCd vs. Pb-acid battery lifetimes at 25°C .............................................................................................. 14
Graph 4-3 Self-discharge of NiCd-accumulators (fully charged) ......................................................................... 15
Graph 4-4 Cycle life vs. depth of discharge .................................................................................................................. 15
Graph 4-5 Relationship between water loss and charging voltages ................................................................. 16
Graph 5-1 Floating derating factor as a function of discharge time .................................................................. 18
Graph 6-1 Time to reach state of charge (M-Range) ................................................................................................ 20
Graph 6-2 Time to reach state of charge (L-Range) .................................................................................................. 20
Graph 6-3 Time to reach state of charge (H-Range) ................................................................................................. 21
Graph 6-4 Temperature-corrected Float Voltage ....................................................................................................... 22
Table 2-1 Battery (cell type) selection matrix ............................................................................................................ 10
Table of Contents
7.0 Installation and operating instructions .................................................................................................. 23
7.1 Receiving the battery ...................................................................................................................................................... 23
7.2 Storage ................................................................................................................................................................................. 23
7.2.1 Uncharged and unfi lled cells ........................................................................................................................... 23
7.2.2 Charged and fi lled cells/discharged and fi lled cells ................................................................................ 23
7.3 Installation ............................................................................................................................................................................. 23
7.3.1 Location ................................................................................................................................................................... 23
7.3.2 Ventilation ............................................................................................................................................................... 23
7.3.3 Setting up ................................................................................................................................................................ 24
7.3.4 Electrolyte ............................................................................................................................................................... 24
7.3.5 Commissioning ..................................................................................................................................................... 25
7.3.5.1 Commissioning with constant current ............................................................................................ 25
7.3.5.2 Commissioning with constant voltage ............................................................................................ 26
7.4 Charging in operation ..................................................................................................................................................... 27
7.4.1 Continuous battery power supply (with occasional battery discharge) .......................................... 27
7.4.1.2 Two level charge ...................................................................................................................................... 27
7.4.1.3 Single level charge .................................................................................................................................. 27
7.4.2 Buffer operation ................................................................................................................................................... 27
7.5 Periodic Maintenance ...................................................................................................................................................... 27
7.5.1 Equalising charge ................................................................................................................................................. 27
7.5.2 Electrolyte check and topping up .................................................................................................................. 28
7.5.3 Replacing of electrolyte ..................................................................................................................................... 28
7.5.4 Electrolyte temperature ..................................................................................................................................... 28
7.6 Additional warning notes ............................................................................................................................................... 29