EnergyCell OPzV Batteries
Contents
1. 096 1096 2096 3096 4096 5096 6096 7096 8096 DoD 96 Figure 1 Expected Number of Cycles vs Depth of Discharge 181 41 1 B0 001 Rev A 08 2015 Performance Curves RES OPzV 2V Cells 2 lt BR EE E 2 10 Q e 2 S x 8 a a B M S un o 9 R f 5 8 9 R g 3 G a 8 5 2 00 9 E E a E 3 o E 2 gt 3 fo 1 95 x 5 o t O 1 90 gt i E E D sa NZ g 19 ca L S 1 85 CS E RS 2 y OS 1 80 7 ln NS y yery Rates in Amps per NA Ps D rate nere 100AhC10DIN i 7 ANN m X 0 10 20 30 40 50 60 70 80 90 100 110 120 130 3 150 1 75 Extracted Amperhours per 100Ah of C10 DIN Figure 2 Guidance for the Initial Low Voltage Disconnect Settings 25 C Reference Temperature The minimum voltage for standby use represents the maximum available capacity The minimum voltage for solar use represents 8096 of the maximum available capacity It is the lower low voltage disconnect setting except in special applications and after OutBack Power s approval The depth of discharge 6096 line represents the minimum voltage setting to control the end of each discharge voltage in hybrid applications It s always recommended to implement a supplementary control by Ah counter 181 411 B0 001 Rev A 08 2015 17 Performance Curves 120 100 RES OPzV Cells 80 60 Residual capacity 40 20 Storage time months Figure 3 Self Disch2. egeo 6390 5526 3639 3121 1722 1662 1204 3 95 E cra or 30o o Table 9 Performance Data Discharge Constant Power at 20 C Watts cell Continued 181 411 B0 001 Rev A 08 2015 Corporate Headquarters 17825 59th Avenue N E Suite B Arlington WA 98223 USA 181 41 1 B0 001 Rev A 08 2015 Cut Back POWER member of The ahim Group European Office Hansastrasse 8 D 91126 Schwabach Germany
3. 24 61 18 42 15 64 11 50 8 23 EnergyCell OPzV 3000 196 84 170 58 112 62 96 73 53 43 51 56 37 37 27 80 23 53 17 23 12 29 Table 8 Performance Data Discharge Constant Current at 20 C Amperes 20 181 41 1 B0 001 Rev A 08 2015 Technical Specifications Performance Data Discharge Constant Current at 20 C Amperes End Voltage 1 83V cell h ioon 1209 168 2405 ses 1023 260 sas an 326 l l 72 OPzV 450 3227 2785 1824 15 62 EnergyCell OPzV 750 54 06 4681 30 88 2652 1464 14 13 10 23 h 5 EnergyCell 13115 11373 7535 6481 3603 3478 2530 1889 1601 1175 OPzV 2000 i i y i E EnergyCell Opry 3000 20555 177 84 116 94 10030 55 11 53 16 3842 2852 2411 1761 1254 h 11 End Voltage 1 80V cel EnergyCell 0 DUE 33 60 2895 1888 16 16 9 T 1460 Energycel Energycel Table 8 Performance Data Discharge Constant Current at 20 C Amperes Continued rm 1o0n 120m wem ze 181 411 B0 001 Rev A 08 2015 21 22 Technical Specifications EnergyCell OPzV 450 EnergyCell OPzV 750 EnergyCell OPzV 2000 EnergyCell OPzV 3000 Performance Data Discharge Constant Power at 20 C Watts Cell End Voltage 2 00V cell 240h i l 29 21 25 80 17 99 15 75 x 900 am 5 2 28 Fes um n or Dm D E Pes s ner sm n nm m m m m e Eros ss a mo n 00 nn m as s om EnergyCell OPzV 450 EnergyCell
4. OPzV 750 EnergyCell OPzV 2000 EnergyCell OPzV 3000 End Voltage 1 92V cel 120h 168h 240h 48 87 42 56 28 53 24 64 13 91 13 44 ess 739 em 460 3 33 s er e o e os Dr on pn oo sm Pe e en nm um m m pn n m Ee e vua vum ws wm on om n wm e h 5 EnergyCell OPzV 450 EnergyCell OPzV 750 EnergyCell OPzV 2000 EnergyCell OPzV 3000 End Voltage 1 90V cel 52 50 45 65 30 46 26 27 14 74 14 24 10 41 3 50 re ser e ron m 09 m m n s s n fom nn n wen n i n 50 ss es e s om oom m m m oe a EnergyCell OPzV 450 EnergyCell OPzV 750 EnergyCell OPzV 2000 EnergyCell OPzV 3000 End Voltage 1 85V cel 59 52 51 60 34 18 29 40 15 77 11 46 Fe ser su on om os om m m om oo es sus onn v om n n ren o n n es s n rm nm m n sm m m ins Table 9 Performance Data Discharge Constant Power at 20 C Watts cell 181 41 1 B0 001 Rev A 08 2015 Technical Specifications Performance Data Discharge Constant Power at 20 C Watts Cell End Voltage 1 83V cell EnergyCell OPzV 450 61 59 53 34 35 24 30 29 16 77 16 18 11 74 8 74 7 40 5 42 EnergyCell OPzV 750 102 61 89 18 59 42 51 19 28 62 27 64 20 14 15 06 12 79 9 41 3 87 6 76 EnergyCell OPzV 2000 248 33 216 25 144 79 125 00 70 44 68 06 49 86 37 46 31 87 23 54 16 93 EnergyCell OPzV 3000 389 70 338 53 224 97 193 63 107 81 104 09 75 75 56 58 47 99 35 27 25 27 End Voltage 1 80V cell
5. characteristic For the commissioning charge the current must be limited to 1 110 Amps 1 Minimum and Maximum P Battery Temperature Voltage Settings Charging Times Full Charge Criteria 0 10 C 2 38 2 45V 48 72h When the individual cell 15 30 C 2 35 2 40V 36 72h voltages have not risen 30 40 C 2 32 2 35V 24 48h for a period of 4 hours Table 1 Case 1 Case 2 With external charger of IUI or characteristic Using an IUI or charger that can charge the battery with constant current at elevated voltage higher than 2 60Vpc up to 2 80Vpc Minimum and Maximum Charging Times at Full Charge Criteria Gassing Phase Bulk Charge Current Voltage Settingsfor Gassing Charge Current Limitation U Phase Limitation When the individual 0 12 110 1 2A per 100Ah cell voltages have not Nominal Capacity risen for a period of 1 hour 2 0 110 2 33 2 40V Table 2 Case 2 181 411 B0 001 Rev A 08 2015 Case 3 Using the solar controller Connect the battery to the controller and leave it for 1 2 weeks while the application load is disconnected Full charge criteria are not applicable here Use the following voltage settings On Off Controllers 20 0 C 0 35 C High Disconnect Voltage Vr 2 55V 2 45V 2 40V Low Restart Voltage Vrr 2 35V 2 30V 2 25V Constant Voltage Controllers 20 to 0 C 0 35 C Regulation Voltage Vr 2 45V 2 37V 2 33V Table 3 Case 3 Equalizing Functional Equalizing During a cycl
6. Disconnect Settings 25 C Reference Temperature 17 Figure 3 Self Discharge Characteristics RES ed PAW eG Sees YO 3 x sedi teesd 18 Figure 4 EnergyCell OP2V Cycle Life uos a EE si vee dd oO RS GU UR ER OR UR UC ROE SOE c ES 19 Figure 5 EnergyCell OPzV Capacity vs Temperature Chart Rate 120Hr 1 85VPC 19 Tables Table 1 Case T Tr tbe ee eh ee o Ge ss eee Soe eee Ee oe ere eee 9 Table 2 Case 2 se cis SA Se arvum 9 HT RAF IC riartar cae 6 rrr 10 Table 4 Battery State Deviation y beorrss srta Rot Roland ote eee Ss EARS eee 10 Table 5 Settings for Stand Alone Systems 2264426 sor s0ad284654 04a one eee da wee ee 11 Table 5 Functional Equalizing Frequency s quos e eor 9 hh ex 259406040884 Hee 11 Table 7 Minimum Safe Temperature s 13 Table 8 Performance Data Discharge Constant Current at 20 C Amperes eee 20 Table 8 Performance Data Discharge Constant Current at 20 C Amperes Continued 21 Table 9 Performance Data Discharge Constant Power at 20 C Watts cell 22 Table 9 Performance Data Discharge Constant Power at 20 C Watts cell Continued 23 Important Safety Information Important Safety Instructions READ AND SAVE THESE INSTRUCTIONS This manual contains important safety instructions for the EnergyCell OPzV battery These instructions are in addition to the safety instructions published for use with all OutBack
7. Out Back POWER member of The ahim Group EnergyCell OPzV Batteries User s Manual Out Back POWER member of The ahim Group About OutBack Power Technologies OutBack Power Technologies is a leader in advanced energy conversion technology Our products include true sine wave inverters chargers maximum power point tracking charge controllers and system communication components as well as circuit breakers accessories and assembled systems Contact Information Address Corporate Headquarters European Office 17825 59th Avenue N E Hansastrasse 8 Suite B D 91126 Arlington WA 98223 USA Schwabach Germany Telephone 1 360 435 6030 49 9122 79889 0 1 360 618 4363 Technical Support 49 9122 79889 21 Fax 1 360 435 6019 Fax Email Support outbackpower com Website http www outbackpower com Disclaimer UNLESS SPECIFICALLY AGREED TO IN WRITING OUTBACK POWER TECHNOLOGIES a MAKES NO WARRANTY AS TO THE ACCURACY SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION b ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSS OR DAMAGE WHETHER DIRECT INDIRECT CONSEQUENTIAL OR INCIDENTAL WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION THE USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER S RISK Notice of Copyright EnergyCell OPzV User s Manual August 2015 by OutBack Power Technologies All Rights Reserved Trademark OutBack Powe
8. Weevecue qeu xqxdd deme RENE RE ERE CS 9 Charging uuu ise iriad 9 RE SE ER RR E RRR RRR Yu Soda dde sckkm u s 9 Commissioning Charge sudo e 0 R ELE d RES eed SSS GaSe isa E 9 Full Charges auus xou REST ES 4E AR EGE S REDE d de dea EE 9 EQUAIIZING i re RR rad P QE X 10 Normal Operation Charging x kae oou ERRYGX44AE33 kx RRBERS aa 11 DISCHAIOING vacui es FE deere eee Oe HSS SSS ROMER EES Ecke x ve exa qe 12 Overdischarge Protection 4 2 25044 EK oo 54 48244664 ee EG3 X X RA KEES SOE EERE GapA 12 Low voltage Reconnect for Stand Alone Systems llle 12 Temperature MitS sS K 2 are oS XY X idere nat e EW WR SORES ERG COREE YE ROS 13 Eurrent ENS sa vas ik ae ea eR AO ERR SS CARER SERN OS FR HERES EA RES 13 Ripple CUITGHIS e ood das ede Se dee sede reas ee bdece we ee ewe cd ee ed dues ebb ee des 13 Battery Maintenance obs irradia E Ee WER ee ES 14 FAUNS 4 S66 Oh awa 4 REESE SOS RE SSG d oP RE BKES SS Ht Ee SOS de aaa 15 TES suu uack eels Ce see AREA EOS a OEE de Ee See ee de 15 Taking Out of Operation Storage ue a xk Y GG y ee RRR e eR EERE ada ds ea 15 Transport uui SARS duke eR RE SE ROS UE oe eae RENE be Ee CS d RA RENE ES A SS 15 Performance CUIV S cirrosis RORORN Fwd bekE XX RES S X Y Ys uos k 16 Technical Specifications ess yw oe oe eS ag wR ER ERE REG c e RE AAA 20 Figures Figure 1 Expected Number of Cycles vs Depth of Discharge 1 0 ce ee ee ee 16 Figure 2 Guidance for the Initial Low Voltage
9. and Mechanical Stability EnergyCell OPzV battery racking is recommended for proper installation Calculations should be made to ensure that floor loading capabilities are not exceeded Seismic forces must be considered when applicable The installation should provide adequate structural support and be as free of vibration as possible Cells in Parallel Strings Valve regulated cells may be connected in parallel to give higher current capability In the case of parallel connected strings use batteries of the same capacity design and age only with a maximum of 4 parallel strings If more than 4 strings are required consult a technical support representative at OutBack Power The resistance of the cables in each string must be the same In addition each string should be equipped with disconnect capabilities for maintenance and safety purposes Preliminary Inspection 1 Checkfor evidence of leakage All cells with visible defects such as cracked jars loose terminal posts or other unrecoverable problems should be rejected 2 Beforeinstallation if the surface of the battery container is dirty wash the container with soapy water 3 Conduct Open Circuit Voltage OCV measurements on each individual cell or monobloc battery to verify their compliance with the following variation and absolute voltage criteria The OCV must not deviate from average more than 0 025V for 2V cells The OCV must not be lower than 2 05V for 2V cells 4 Cons
10. arge Characteristics 181 41 1 B0 001 Rev A 08 2015 Performance Curves 8000 7000 6000 5000 4000 3000 2000 1000 Number of Cycles 10 20 30 40 50 60 70 80 Depth of Discharge Figure 4 EnergyCell OPzV Cycle Life 110 105 100 95 90 85 80 10 5 0 5 10 15 20 25 30 33 40 Available Capacity 96 25 C Temperature C Figure 5 EnergyCell OPzV Capacity vs Temperature Chart Rate 120Hr 1 85VPC 181 411 B0 001 Rev A 08 2015 19 Technical Specifications Technical Specifications Performance Data Discharge Constant Current at 20 C Amperes End Voltage 2 00V cell h 20h ion xn zm ze 50h EnergyCell 1473 24h 48h 50h OPN en 3 30 2 51 2 12 1 55 1 10 Energy H 55m sso 3582 nee 1937 1877 1027 1091 037 699 sis Energycel End Voltage 1 92V cell m ue om e on ow om pon o D D D set vm un oe e om m m m m Dm Dn ssa om wm wm oe wn om om om om om om oo mr ur un o Dr End Voltage 1 90V cell EEE aeo ep ss craven 1915 ms crass 100 wr EnergyCell OPN SA 31 09 26 87 17 64 15 13 8 31 8 01 5 79 4 29 3 63 2 65 1 88 EnergyCell OPzV 750 51 82 44 93 29 74 25 57 14 18 13 7 40 6 27 3 29 6 m gt st lt o o te D 00 lt e e D 69 EnergyCell OPzV 2000 125 49 109 02 72 54 62 49 34 94 33 74
11. arge settings correspond to the recommended ones Check if corrective equalizing is applied Measure and record the following parameters every 12 months Voltages and temperatures in all cells blocks Connectors racks and the ventilation 181 41 1 B0 001 Rev A 08 2015 Faults Testing Storage Transport Faults Should faults be detected in the battery or the charging device contact an OutBack Power technical support representative Measured data will simplify fault detection and elimination A service contract with OutBack Power will detect faults in time Testing Tests must be conducted according to IEC 60896 21 Check that the battery is fully charged Before testing new batteries it must be ensured that a sufficient commissioning charge has been applied and the battery is fully charged Taking Out of Operation Storage If filled lead acid accumulators are to be taken out of operation for a longer period of time they must be placed fully charged in a dry frost free room To avoid damage periodical equalizing charging or permanent float charging must be conducted Transport EnergyCell OPzV cells monoblocks are protected against short circuiting If properly packed batteries are not dangerous goods according to the international regulations for dangerous goods on road and on rail ADR and RID 181 411 B0 001 Rev A 08 2015 Performance Curves Performance Curves RES OPzV 2V Cells
12. ing operation the target is to achieve an almost complete recharge 100 state of charge after every discharge cycle otherwise a permanent capacity decrease will threaten the battery s service life This is not always possible in stand alone applications where the RES source depends on the weather conditions A scheduled functional equalizing charge should be given at regular intervals to protect the battery from sulphation and lagging cells Equalizing frequency is adjusted according to the charge deficit The less complete the daily recharge is the more frequent the equalizing is required The charge duration is fixed Thevoltage settings are the same values used for a normal recharge Corrective Equalizing Equalizing charges are also required after incidents of excessive stress for the battery deep discharges with inadequate charges or when the individual cell or bloc voltages show excessive deviation from the average lagging cells and sulphation problems Should the voltage in individual cells bloc deviate from the average value more than the following limits perform an equalizing charge Floating after the first 6 months of operations 0 1V 0 2V At end of normal charge while the current is stable after the first 6 months of operation 02N 0 35V During discharge while Depth of Discharge is between 5 and 2096 004v During discharge while Depth of Discharge 0 06V is between 20 and 60 nu At rest 24h af
13. of the system For systems where the voltage is measured at the controller and not on the battery the voltage drop on the connections to the battery must be considered For critical systems with the load directly connected on the battery an alarm or other method of user feedback must be included to give information on the battery status when depth of discharge exceeds 60 to 8096 Low voltage Reconnect for Stand Alone Systems The battery voltage at which the load is reconnected after a low voltage disconnect must be above 2 2 Vpc 181 41 1 B0 001 Rev A 08 2015 Temperature Limits All technical data applies to the nominal temperature of 25 C The ideal operating temperature range is 25 C 5 K The recommended operating temperature range is 15 C to 35 C Higher temperatures reduce the working life A maximum temperature of 45 C must not be exceeded In hybrid applications the yearly average of battery temperature should be less than 30 C Subzero temperatures may cause electrolyte freezing and irreversible damage when the battery s state of charge is low The minimum safe temperature versus state of charge is given below SoC 96 to C10 DIN value 0 2096 20 4096 40 6096 60 8096 Table 7 Minimum Safe Temperature The system designer installer should consider countermeasures like thermal insulation increasing the battery capacity or increasing the minimum system voltage In stand alone systems it is recommended to use cont
14. or clothing wash immediately with soap and water If acid enters the eye immediately flood it with running cold water for at least 20 minutes and get medical attention as soon as possible Never charge a frozen battery Insulate batteries as appropriate against freezing temperatures A discharged battery will freeze more easily than a charged one Ifa battery must be removed always remove the grounded terminal from the battery first Make sure all devices are de energized or disconnected to avoid causing a spark Do not perform any servicing other than that specified in the installation instructions unless qualified to do so Additional Resources These references may be used when installing this equipment Depending on the nature of the installation it may be highly recommended to consult these resources Institute of Electrical and Electronics Engineers IEEE guidelines IEEE 450 IEEE 484 IEEE 1184 IEEE 1187 IEEE 1188 IEEE 1189 IEEE 1491 IEEE 1578 IEEE 1635 and IEEE 1657 various guidelines for design installation maintenance monitoring and safety of battery systems 181 411 B0 001 Rev A 08 2015 Delivery and Storage Delivery and Storage Receiving Inspection Inspect the shipment for missing components Verify the contents with the packaging documents Inspect each package or pallet for integrity and electrolyte leakage Record the receipt date and the inspection results and notify OutBack Powe
15. power supply with the charger switched off battery fuses removed and the load disconnected ensuring that the polarity is correct Instrumentation For large installations consider permanent instrumentation for measurements and alarm These include voltmeter amp meter Ah counter high and low voltage indicators ground fault detector s and temperature sensor s for the battery and the ambient air For smaller installations use portable test equipment The temperature sensors must be fixed on the battery units side wall or negative pole 181 41 1 B0 001 Rev A 08 2015 Operation Charging Commissioning Charge The initial charge is critical to future battery operation and the battery s service life It is performed as a full charge described in the next section Keep the records in the battery s logbook Full Charge The full charge is a prolonged charge at elevated voltage performed under the supervision of the user It lasts until certain full charge criteria are fulfilled but not outside certain minimum and maximum duration limits It is used mainly as a commissioning charge after installation a corrective equalizing charge a preparation charge before a capacity test or a refresh charge during long storage period During charge the battery temperature must be continuously monitored If the battery temperature exceeds 45 C the charge will be interrupted until the battery cools down Case 1 With external charger of IU
16. products Read all instructions and cautionary markings on the EnergyCell OPzV battery and on any accessories or additional equipment included in the installation Failure to follow these instructions could result in severe shock or possible electrocution Use extreme caution at all times to prevent accidents WARNING Personal Injury Some batteries can weigh in excess of 100lb 45kg Use safe lifting techniques when lifting this equipment as prescribed by the Occupational Safety and Health Association OSHA or other local codes Lifting machinery may be recommended as necessary Wear appropriate protective equipment when working with batteries including eye or face protection acid resistant gloves an apron and other items Wash hands after any contact with the lead terminals or battery electrolyte WARNING Explosion Electrocution or Fire Hazard Ensure clearance requirements are strictly enforced around the batteries Ensurethe area around the batteries is well ventilated and clean of debris Never smoke or allow a spark or flame near the batteries Always use insulated tools Avoid dropping tools onto batteries or other electrical parts Keep plenty of fresh water and soap nearby in case battery acid contacts skin clothing or eyes Wear complete eye and clothing protection when working with batteries Avoid touching bare skin or eyes while working near batteries If battery acid contacts skin
17. r and the OutBack Power logo are trademarks owned and used by OutBack Power Technologies Inc The ALPHA logo and phrase member of the Alpha Group are trademarks owned and used by Alpha Technologies Inc These trademarks may be registered in the United States and other countries Date and Revision August 2015 Revision A Part Number 181 411 B0 001 Rev A 08 2015 Table of Contents Important Safety Instructions s ea num AAA 5 Additional ResQUIES Ls 2445666605 rerekee r a eet have EE OY d qu 5 Delivery and Storage zu x ura Oe EXESEREREREEYEWAGGECRER X RP LEA RE RR EO ERS 6 RECEIVING Inspection s is 26 ae e REG eek Se SE OAK E OE ER ERARA CSS ORE ESE HOw ERR RU 6 coro lt a S 9 X 9 AA REE Ga LIA AAA Oe Se Skee a e 6 Unpacking and Handling s ea seses Sow REA ease 24 3 EY E be Oe ERES Eee 24S SoG Sw ee ES 6 Installation ssi ZZ Z 4 424456 69 684 tendo cae eeeseaead Vues KS 666 64 vsu 7 Room and Installation Design uuu a 4604 b44 45264 sa9eeaeeSeie iaa 7 Racks and Mechanical Stability ss zara omn A a 0 2 STE OR HE SERS OAR E ORES OSE TA ORS 7 Cells in Parallel Strings 2 22224658294 8664024 248956 h00R e RSS EGE OEE S 7 Preliminary Inspection s ics 44 e x X3 446 54 RERCRE SORRY EERO S REVERS So OR EE SR RDS 7 Electrical CONMECUONS lt lt escorias rare R GOVE ES Eidem x Ve eux au das 8 Instrumentation e v aay ee Rue d rte X Y uos E PEERS RRR RRA EERE EEE uie oe EET a RA 8 Operas vu EE HE ioe ORR EERE vx PePe
18. r of any damage Take photographs if necessary Storage Store the batteries in a dry clean cool and well ventilated location Do not expose the cells to direct sunlight as damage to the container and cover may occur Do not stack one pallet above the other Avoid storing unpacked cells monoblocs on sharp edged supports Storage on a pallet wrapped in plastic material is permitted except in rooms where the temperature fluctuates significantly or if high relative humidity can cause condensation under the plastic cover With time this condensation can cause a whitish hydration on the poles and lead to high self discharge by leakage current Protect the batteries from any risk of electric shock resulting from short circuiting by a conductive object or froma building up of conductive dust It is recommended to have the same storage conditions within a batch pallet or room As the batteries are supplied charged storage time is limited In order to easily charge the batteries after prolonged storage it is advised not to store them more than 6 months at 20 C 4 months at 30 C 2 months at 40 C A refreshing charge is needed after this period Failure to observe these conditions may result in significantly reduced capacity and service life Record dates and conditions for all charges during storage Unpacking and Handling Never lift cells by the terminal posts Lifting cells with weight above 25kg has to be made with lifting belts Ne
19. rollers with adjustable low voltage disconnect setting to the battery temperature higher low voltage disconnect for lower temperature During operation the temperature difference between individual cells blocks battery should be below 3 C Current Limits The maximum charging current during the bulk charging is 3 110 while the battery voltage is below the gassing voltage of 2 40V x number of cells Ripple Currents During recharging up to 2 40 V cell the effective value of the AC ripple current may temporarily reach maximum 10A 100 Ah C10 nominal capacity After recharging and at float charge in stand by operation or buffer operation the effective value of the AC ripple current must not exceed 5A 100 Ah C10 nominal capacity 181 411 B0 001 Rev A 08 2015 Battery Maintenance Battery Maintenance To avoid leakage currents and the associated risk of fire keep the battery dry and clean Clean with clear water do not use any solvents or detergents as they can cause permanent damage to the container and lid Avoid electrostatic charges Measure and record the following parameters every 6 months Battery voltage Voltage of some cells bloc batteries pilot cells Temperature of the container in some cells bloc batteries pilot cells Confirm daily depth of discharge per cell Confirm max depth of discharge per cell does not exceed the allowed limit Confirm charging factor is within acceptable limits Confirm that ch
20. ter a functional equalizing 40 025V charge Table 4 Battery State Deviation Corrective Equalizing is performed as a Full Charge If the voltages are still out of the limits contact an OutBack Power technical support representative 181 41 1 B0 001 Rev A 08 2015 Normal Operation Charging The following charging voltage settings are optimum values so the battery is not heavily undercharged or overcharged A good indicator to check this is the percent of overcharge per cycle charging factor within a long period of operation a month to a year Deviations from these charging factors signals the user to check the charging settings and the overall system operation 10796for Stand alone systems with maximum daily depth of discharge less than 5 105 to 110 for Stand alone systems with maximum daily depth of discharge more than 5 Settings for Stand Alone Systems The settings shall be adjusted according to battery temperature Temperatures are averaged over one month on TAD lage Vr 2 50V 2 45V 2 40V 2 35V One Step Absorption Maximum Constant Voltage 2h per Day 2 55V 2 50V 2 45V 2 40V Two Steps 245V 2 40V 2 35V 2 30V gt High Voltage Vr 2 55V 2 50V 2 45V 2 40V n Low Voltage Vrr 2 35V 2 30V 2 30V 2 25V Table 5 Settings for Stand Alone Systems For systems with oversized PV array and low maximum daily depth of discharge lt 5 use lower settings Functional equalizing charges are required in periods
21. ulta technical support representative at OutBack Power if the battery compliance cannot be verified 181 411 B0 001 Rev A 08 2015 Installation Electrical Connections 1 Ensure that the cells are wired with the correct polarity 2 Verify that all contact surfaces are clean If required clean with a brass brush pad The inserts and connections can be lightly lubricated with silicone grease 3 Torque the terminal screws to 22Nm Note For systems where the total battery voltage is measured at the controller use oversized cables to the battery in order to minimize the voltage drop 4 Electrical connections to the battery as well as between cells on separate levels or racks should be made to minimize mechanical strain on battery terminal posts 5 Checkthe battery s total voltage It should match the number of cells monoblocs connected in series If the measurement is not as expected recheck the connections for proper polarity Batteries with a nominal voltage 75V require an EC conformity declaration in accordance with the low voltage directive 73 23 EEC which confirms that the CE marking is applied to the battery The company installing the battery is responsible for the declaration and applying the CE marking 6 Forfuture identification apply individual cell unit numbers in sequence starting from one end of the battery Also apply identification numbers for the parallel strings 7 Connectthe battery to the DC
22. ver drag or roll the battery Do not apply force to the safety valve during handling The batteries are fully charged before shipment Do not short circuit the batteries Check for evidence of leakage All cells with visible defects such as cracked jars loose terminal posts or other unrecoverable problems shall be rejected 181 41 1 B0 001 Rev A 08 2015 Installation Installation Room and Installation Design Important All aspects of the installation must be in accordance with the applicable rules and governmental regulations of the local area The battery should be installed in a clean dry environment Avoid placing the battery in a warm place or in direct sunlight The location or arrangement of cells should result in no greater than a 3 C temperature differential between cells within a series connected string at a given time Avoid conditions that result in spot heating or cooling as temperature variations will cause the battery to become electrically unbalanced Ensure the installation allows adequate air flow around each cell or monobloc for better cooling Keep 10mm distance between cells or blocks The layout of the room must allow easy access to the batteries Provide adequate space and illumination for inspection maintenance testing and cell battery replacement Space should also be provided to allow for operation of lifting equipment and proper measurement cell voltage and temperature Racks
23. with marginal Array to Load ratio less than 1 3 Typical frequency is 1 to 6 times per year Absorption Time 8 10h 10 12h Equalizing Every 7 Cydes 14 Cycles 21 Cycles 28 Cycles Table 6 Functional Equalizing Frequency A functional equalizing lasts 24 hours with voltage settings the same as above 181 411 B0 001 Rev A 08 2015 Discharging No restriction on the discharge current is required provided the connections are properly sized and the battery temperature stays within the allowable limits For discharge rates lower than 110 the maximum daily depth of discharge is expressed as a percentage of the C10 DIN value The maximum allowable depth of discharge MDOD is 8096 of the maximum available capacity for all systems unless otherwise approved by OutBack Power Overdischarge Protection The MDOD limit control should not be implemented solely through control systems based on Ah counters Monitoring the battery voltage against the low voltage disconnect setting should always be included The maximum daily depth of discharge limit control for hybrid applications can be measured either by Ah counters control units or and by battery voltage monitoring The graphs at the end of this manual give the battery voltage to depth of discharge relation as a guidance for the initial low voltage disconnect settings first try settings The system designer or installer must adjust and confirm them according to the actual conditions
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