This document is an informative document relating to aspects of automatic monitor systems as utilized in lead-acid traction battery applications. It lists the characteristics and features that need to be monitored and evaluated to properly assess the operative status of a traction battery. Guidance concerning the accuracy and reliability of the generated information is also provided.<\/p>\n
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| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions 4 Desirable characteristics and features 4.1 General 4.2 Physical location of the monitoring device <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 4.3 State of charge indication or “fuel gauge” 4.4 Battery temperature information 4.5 High battery temperature warning 4.6 Low temperature warning 4.7 Electrolyte level indication 4.8 Electrolyte level maintenance log <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 4.9 Uniformity of cell properties in a battery 4.10 Battery commissioning date 4.11 Battery configuration 5 Evaluation and analysis 5.1 State of charge indication or “fuel gauge” 5.2 Battery temperature information <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 5.3 Water consumption Table 1 \u2013 Residence times and related temperature ranges Table 2 \u2013 Temperature warning levels <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 5.4 Uniformity of cell properties 5.5 Electrolyte density <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 5.6 Capacity throughput 5.7 Battery age 5.8 Battery data sheet <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 5.9 Communication interfaces 5.10 Ground faults 5.11 Human factors <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 6 Data monitoring \u2013 Recommended list of parameters to be monitored Table 3 \u2013 Units and value resolution of measured characteristics <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 7 Analysis and evaluation of gathered battery data 7.1 Data flow 7.2 Prediction of residual operational life Figure 1 \u2013 Potential data flow in a monitor system <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Annex A (informative) Example determination of the residual service life of lead-acid traction batteries A.1 General A.2 Lost capacity due to stress factors A.2.1 Evaluation of the impact of a deep discharge <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | A.2.2 Evaluation of impact of the battery temperature Figure A.1 \u2013 Example of interrelation between discharge voltages and discharge currents indicating a deep discharge condition <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | A.2.3 Evaluation of the impact of very high discharge currents A.2.4 Evaluation of the impact of the battery being in idle state A.2.5 Calculation of the residual capacity Table A.1 \u2013 Derating factor due to ageing on standby and idling <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | A.2.6 Residual number of cycles <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Guidelines for the use of monitor systems for lead-acid traction batteries<\/b><\/p>\n |