EnerSys PowerSafe SBS Series Manual
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Summary of Contents for EnerSys PowerSafe SBS Series
- Page 1 Publication No: EN-SBS-PG-001 February 2003...
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Page 2: Table Of Contents
Contents Introduction Introduction PowerSafe SBS standby power batteries Enersys has earned an international utilise advanced pure lead, thin plate reputation for quality and reliability Range Summary technology to achieve exceptionally high based on more than 100 years performance, energy density, reliability... -
Page 3: Range Summary
Range Summary Monobloc Specifications Dimensions mm (inches) Nominal Voltage 1.75Vpc 1.80Vpc Terminal Weight Model @ 25°C (77°F) @ 20°C (68°F) Fastener Length Width Height kg (lbs) SBS8 M4 F 138 (5.4) 86 (3.4) 101 (4.0) 2.7 (5.9) SBS15 M6 M 200 (7.9) 77 (3.0) 140 (5.5) -
Page 4: Recombination Technology
Recombination Technology How gas recombination works When a charge current flows through a fully charged conventional Therefore, provided oxygen can be transported to the negative lead acid cell, electrolysis of water occurs to produce hydrogen from electrode, conditions are ideal for a rapid reaction between lead and the negative electrode and oxygen from the positive electrode. -
Page 5: Construction
Construction Terminal Posts High conductivity post for high rate discharge. Pillar Seal Compressed rubber grommet for superior integrity. Container and Lid Heat-sealed for maximum strength. SBS cases are made of ABS and SBS J are made of Noryl. Both materials are flame retardant (UL94 V-0). One Way Valve Ensures no oxygen can enter the cell. -
Page 6: Features And Benefits
Features and Benefits Design Life Orientation High purity materials give SBS batteries a long float life. The batteries can be installed in any orientation except On constant voltage float charge systems the design life upside down (vents on the bottom). expectancy is 10+ years at 25°C/77°F and 15+ years at Terminal Position 20°C/68°F. -
Page 7: Battery Sizing
Battery Sizing Battery capacity is affected by the discharge rate, end Step 4. Refer to the constant current discharge table for an voltage, temperature and age. end voltage of 1.75 Vpc, and in the 4 hour column find the model that will provide the load current. Battery sizing calculations should include factors for In this example an SBS60 will provide 11.7 amps/ temperature and loss of capacity over life. - Page 8 Battery Sizing Step 1. Number of cells needed per string Step 2. Watts per cell required to support the load = 120 (nom.volt) /2 (nominal cell voltage) = Total power required from battery = 60 cells no. of cells = 11.294 (kW) Step 2.
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Page 9: Performance Data
Performance Data Constant current discharge performance data Constant Current Discharge (amps) to 1.85Vpc at 20°C/68°F 5 Min 10 Min 15 Min 20 Min 25 Min 30 Min 35 Min 40 Min 45 Min 1 Hr 2 Hrs 3 Hrs 4 Hrs 5 Hrs 6 Hrs 7 Hrs... - Page 10 Constant Current Discharge (amps) to 1.70Vpc at 20°C/68°F 5 Min 10 Min 15 Min 20 Min 25 Min 30 Min 35 Min 40 Min 45 Min 1 Hr 2 Hrs 3 Hrs 4 Hrs 5 Hrs 6 Hrs 7 Hrs 8 Hrs 9 Hrs 10 Hrs 20 Hrs...
- Page 11 Constant Current Discharge (amps) to 1.63Vpc at 20°C/68°F 5 Min 10 Min 15 Min 20 Min 25 Min 30 Min 35 Min 40 Min 45 Min 1 Hr 2 Hrs 3 Hrs 4 Hrs 5 Hrs 6 Hrs 7 Hrs 8 Hrs 9 Hrs 10 Hrs 20 Hrs...
- Page 12 Performance Data Constant power discharge performance data Constant Power Discharge (watts per cell) to 1.85Vpc at 20°C/68°F 5 Min 10 Min 15 Min 20 Min 25 Min 30 Min 35 Min 40 Min 45 Min 1 Hr 2 Hrs 3 Hrs 4 Hrs 5 Hrs 6 Hrs...
- Page 13 Constant Power Discharge (watts per cell) to 1.70Vpc at 20°C/68°F 5 Min 10 Min 15 Min 20 Min 25 Min 30 Min 35 Min 40 Min 45 Min 1 Hr 2 Hrs 3 Hrs 4 Hrs 5 Hrs 6 Hrs 7 Hrs 8 Hrs 9 Hrs...
- Page 14 Constant Power Discharge (watts per cell) to 1.63Vpc at 20°C/68°F 5 Min 10 Min 15 Min 20 Min 25 Min 30 Min 35 Min 40 Min 45 Min 1 Hr 2 Hrs 3 Hrs 4 Hrs 5 Hrs 6 Hrs 7 Hrs 8 Hrs 9 Hrs...
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Page 15: Performance Information
Performance Information Temperature Correction Short Circuit Currents The following table shows the effect of battery temperature Short Circuit Current and Internal Resistance – BS 6290 on the electrical discharge performance at different Method discharge rates. Performance is given as a factor of the Internal Short Circuit performance at +20°C/68°F. - Page 16 Performance Information End of Discharge Voltage Batteries should be stored in a cool, dry area. High temperature increases the rate of self-discharge and The voltage point to which a battery can be discharged is a reduces storage life. function of the discharge rate. The recommended end voltage point (REVP) is the voltage at which a battery should Figure 2 shows the relationship between open-circuit voltage be disconnected from the load.
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Page 17: Installation
Ventilation damage and against the packing list. Immediately inform the During normal charging conditions the volume of hydrogen Enersys sales department of any damaged or missing items. emitted from a SBS battery is virtually negligible, and will Battery Location normally dissipate rapidly into the atmosphere. To comply with the requirements of EN 50272, Part 2, the battery room, or Batteries can be installed on racks, shelves or in cabinets. -
Page 18: Housings
If the equipment does not include the battery housing, of the installation, operation and maintenance personnel, Enersys can provide a variety of shelves and racks. system integrity and compliance with applicable building and Consult a Enersys representative for details. -
Page 19: Charging
Charging Voltage Setting Front terminal models - in the centre of the side wall of a bloc, in the middle of the string SBS are designed for continuous float operation on constant Top terminal models - attached by a ring terminal to the voltage chargers. - Page 20 Charging Fast Charging Ripple Voltage Ripple “Fast” charge techniques are best suited for frequent discharge or cyclic applications. Is normally seen as a cyclic variation of the DC charging voltage, usually at twice the mains supply frequency, i.e. For applications requiring a faster recharge, a potential of 100 Hz for a 50 Hz supply, or twice the switching frequency 2.38 volts per cell at 25°C/77°F can be applied to the battery.
- Page 21 There are too many variables to be taken into consideration to make non-specific claims for cyclic life. For advice on the most suitable SBS cyclic battery please provide details of the application to Enersys. www.enersysinc.com Publication No: EN-SBS-PG-001 February 2003...
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Page 22: Maintenance
The record sheet should be kept with the battery so If necessary, adjust the float voltage to the correct value. its operating characteristics and service history is available to anyone that works on it. Enersys may require the record if a Bloc Voltage Readings warranty claim is made. -
Page 23: Publication No: En-Sbs-Pg-001 February
Maintenance Battery Installation and Maintenance Record Sheet Installed by: Date: Battery Type: Site: Float voltage readings to be taken at the battery terminals, not at charger output terminals. Date: Float Voltage: Current: Amb.Temp: Readings: Volts *mhos Volts mhos Volts mhos Volts mhos Volts... - Page 24 Global Headquarters P.O. Box 14145 Reading, PA 196212-4145 Tel: +1-610-208-1991 +1-800-538-3627 Fax: +1-610-372-8613 EnerSys EMEA Houtweg 26 1140 Brussels Belgium Tel: +32 (0)2 247 94 47 Fax: +32 (0)2 247 94 49 EnerSys Asia No. 49, Yanshan Road Shekou, Shenzhen...
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