Deka SOLAR Monoblock VRLA System Installation & Operating Manual Download

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APPENDIX E

Voltage Compensation Chart

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Note: 1. Above values based on 12-volt battery

2. Divide above values in half for 6-volt battery.

Summary of Contents for SOLAR Monoblock VRLA System

Page 1: ...Monoblock VRLA System Installation Operating Manual ...

Page 2: ...n X Unpacking X Storage X Installation General X Grounding X System Operation Charging X Charging Parameters X Charge Current X State of Charge X Record Keeping Maintenance Annual Inspection X Rectifier Ripple X Capacity Testing X Glossary Appendix A Renewable Energy Worksheet X Appendix B Example of Typical 3 Stage Charger X Appendix C Depth of Discharge vs Freezing PointX Appendix D Capacity vs ...

Page 3: ...of Discharge DoD Depth of discharge is a function of design The deeper the discharge per cycle the shorter the life of the battery A cycle is a discharge and its subsequent recharge regardless of depth of discharge Systems should be designed for shallow discharges The result of shallower discharges is typically a larger capacity battery at prolonged battery life A Cycle vs DoD chart should be cons...

Page 4: ...ing the necessary maximum charge current for the system If the calculation shows the absorption time is greater than the minimum average peak sun hours for the installation location the amount of available current to the batteries should be increased which could be accomplished by a larger array or a secondary power source such as a generator Charge Current Verification FLOODED C20 x 0 44 charge c...

Page 5: ...equate space and accessibility for taking individual battery or cell voltage hydrometer readings and adding water should be considered If installed in an earthquake seismic zone battery racking system must be of sufficient strength and adequately anchored to the floor Battery rack design and anchoring should be reviewed by a structural engineer Ventilation It is the responsibility of the installer...

Page 6: ...ing no back up energy source Wiring connection assessment difficult to follow with multiple wirings connected to same battery terminal increasing chance of re connection wiring errors Common Bus Wiring a wiring scheme in which same polarity terminals are connected to a single termination point All inter connecting wiring should be of same length to minimize volt age drop Advantages Cables can be o...

Page 7: ...ring dry and clear of tools and other for eign objects 4 Provide adequate ventilation per IEEE standard 1187 and or local codes and follow recommended charging voltages 5 Never remove or tamper with the pressure relief valves except for cell replacement Warranty void if vent valve is removed 6 Inspect flooring and lifting equipment for functional adequacy 7 Adequately secure cell modules racks or ...

Page 8: ...g gently with a non metallic brush or pad before installing connectors No Ox ID grease can be used but is not required 3 Install all electrical connectors cables and bolting hard ware loosely to allow for final alignment of batteries Torque to manufacturer recommendations 4 After torquing read the voltage of the battery string to ensure the individual batteries are connected correctly The total vo...

Page 9: ...tage readings are affected by dis charge and recharges for cyclic applica tions the battery ies must be in a fully charged condition prior to taking readings Batteries should be within 0 30 volts 0 15 volts for 6V of the average battery float voltage 3 Record charger voltage 4 Record the ambient temperature 5 Record individual battery ohmic readings 6 Record all interunit and terminal connection r...

Page 10: ...nd temperature The capacity of a battery is not a constant value and is seen to decrease with increasing discharge rate C20 Battery capacity measured in Ah amp hour at the 20hr rate End Voltage The minimum voltage at which a DC system will operate Flooded A battery in which the products of electrolysis and evaporation are allowed to escape to the atmosphere as they are generated Electrolyte is fre...

Page 11: ...9 APPENDIX A Completing all parameters ensures accurate battery sizing Worksheet to be submitted to sales representative for battery recommendation ...

Page 12: ...10 APPENDIX B Example of typical 3 stage charger ...

Page 13: ...11 APPENDIX C Depth of Discharge vs Freezing Point ...

Page 14: ...12 APPENDIX D Capacity vs Operating Temperature ...

Page 15: ...13 APPENDIX E Voltage Compensation Chart 0 1 2 3 4235 4 65 Note 1 Above values based on 12 volt battery 2 Divide above values in half for 6 volt battery ...

Page 16: ...14 APPENDIX F Charging Current vs Charging Time chart Discharge Voltage Curve ...

Page 17: ...APPENDIX G ...

Page 18: ...ufacturing Co Subsidiary 1 800 372 9253 www mkbattery com e mail sales mkbattery com www dekabatteries com All data subject to change without notice No part of this document may be copied or reproduced electronically or mechanically without written permission from the company ...

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Deka SOLAR Monoblock VRLA System, Installation & Operating Manual

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