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Summary of Contents for Saft STM 5-100
- Page 1 Technical manual installation, operation and maintenance for Ni-Cd STM MR-MRE monoblocks type...
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Page 2: Table Of Contents
Contents Introduction Important recommendations 1. Characteristics of STM MR-MRE monoblocks 1.1. General description 1.1.1. Operation principle of vented Ni-Cd cells 1.1.2. Description of STM MR-MRE Ni-Cd monoblocks 1.2. Mechanical characteristics 1.3. Electrical characteristics 1.4. Description of the centralized filling system 1.4.1. - Page 3 7. Repair and overhaul of batteries 7.1. Electrolyte specific density 7.2. Reconditioning Appendix 1 STM 5-100 MR G RD equipped Appendix 2 STM 5-100 MRE G RD equipped Appendix 3 STM 5-140 MR G RD equipped Appendix 4 STM 5-140 MR D RG equipped...
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Page 4: Introduction
It contains the main characteristics and other characteristics. of the low maintenance Saft Ni-Cd Depending on the referenced STM MR-MRE monoblocks. model, specific instructions might It provides guidelines for use be added to this document. -
Page 5: Important Recommendations
Important recommendations ! Install the battery such as to ! Never use sulfuric acid or ensure good ventilation. acidified water to top-up electrolyte, as acid, even in ! Never allow a flame or fire to traces, destroys the battery. come near the battery. ! Use tools with insulated handles. -
Page 6: Characteristics Of Stm Mr-Mre Monoblocks
1. Characteristics of STM MR-MRE monoblocks 1.1. General description During overcharge, the water contained in the electrolyte is decomposed into oxygen and 1.1.1. Operation principle of hydrogen. vented Ni-Cd cells In a low maintenance battery, The electrochemistry concept of a significant amount of these the batteries is to supply energy to gases recombines in the battery, electrical and electronic products. -
Page 7: Description Of Stm Mr-Mre Ni-Cd Monoblocks
(refer to chapter 3.). the electrolyte remains practically made of polypropylene, as are The monoblock STM 5-100 MR constant. Under no circumstances the cover and the filling ramp and MRE’s do not have can it be used as an indicator of that are welded to the container independent support plates. -
Page 8: Mechanical Characteristics
Electrolyte reserve Terminal M 8 x 1.25 M 8 x 1.25 " Refer to attached diagram 1.3. Electrical characteristics STM 5-100 MR and MRE STM 5-140 MR Rated capacity IEC 100 Ah 136 Ah Nominal voltage U Apparent internal resistance (completely charged) at + 20°C... -
Page 9: Description Of The Centralized Filling System
1.4. Description of the automatic regulation of the electrolyte level in each cell centralized filling system during topping-up. For a battery with several 1.4.1. General description hydraulic circuits, the topping-up This chapter describes the will be done separately for each working principle of the single hydraulic circuit. -
Page 10: Working Principle Of A Centralized Filling Ramp
1.4.2. Working principle of The water flows across the ramp The centralized filling ramp has no moving parts and offers full through a plunging siphon (6) and a centralized filling ramp operational security. Further, this into the cell through the exhaust The concept is to fill a cell with system prevents the cell electrolyte hole (7), while the air escapes... -
Page 11: Precautions And Practices
2.2.2. Harm caused in using sulfuric acid or acidious water The water and electrolyte used Low maintenance STM batteries in Saft Ni-Cd batteries must be Sulfuric acid (as it is used in are delivered filled with electrolyte lead- acid batteries) seriously chemically pure. -
Page 12: Electrical Shocks And Burns
2.3. Electrical shocks 2.4. Possible dangers and burns through hydrogen Batteries assembled from a large Low maintenance STM number of monoblocks can attain monoblocks are connected in high voltages. Therefore great hydraulic series. The hydraulic care caution must be taken during circuit exhausts oxygen and the installation and maintenance hydrogen gases that are... -
Page 13: Installation
STM 5-100 MR and The maximum number of STM 5-140 MR monoblocks in For the final installation that will... -
Page 14: Ventilation And Cooling
10 (50 cells maximum), & Special case of STM 5-100 MRE taken that none of these three which in turn limits the nominal liquid cooled monoblocks circuits is interconnected. -
Page 15: General Instructions For Assembly
All Saft monoblocks to be For distances greater than 200 mm (between the battery equipped with a centralized and the water tank for example), water filling system, are equipped or to form a loop, use flexible with the water filling ramp. -
Page 16: Placing Into Service
12 ± 2 N.m on the ramps or filling circuits to avoid the loss of electrolyte STM 5-100 STM 5-100 STM 5-140 Current (I) 10 A Time (t) 21 h... -
Page 17: Operation
The fast charge current is applied the authorized maximum as follows: operational temperature from being exceeded. • STM 5-100 MR-MRE: 150 A The temperature measured inside • STM 5-140 MR: 210 A a central cell must always be below + 60°C. -
Page 18: Recommended Charging Method
Temperature coefficient: The recommended charging approximately 8 hours. For T>10°C method for Saft STM MR-MRE – 0.003 V/°C/cell, batteries is two-level constant ! Temperature compensation i.e. – 0.015 V/°C/monoblock. current charge IOla, as shown in It is essential that the battery the diagram below. - Page 19 Voltage threshold – 10°C x (– 0.03)V/°C = ......+ 0.3 V Voltage threshold for charge at 0°C8.15 V + 0.3 V = ..8.45 V A special document concerning the charging methods recommended by Saft is available on request from the application service.
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Page 20: Discharge
5.3. Discharge 5.3.1. Discharge current STM 5-100 MR and MRE STM 5-140 MR The maximum current in continuous discharge is 2 C Constant 200 A 270 A If necessary, the monoblocks must Peak (10 s) 500 A 680 A be cooled to limit heating (electrolyte temperature <... -
Page 21: Maintenance
! Frequency of topping-up After a number of cumulated overcharged amperehours according to model: • STM 5-100 MR et MRE: (1) During the first 30 minutes following the end of the overcharge, the residual 1 000 Ah overcharged gases from the overcharge process can •... -
Page 22: Repair And Overhaul Of Batteries
Commissioning charge at constant necessary, this can only be done current as described in chapter 4.2: by specialists from Saft. • STM 5-100 MR: 7 A during 21 hours • STM 5-100 MRE: 10 A during 15 hours • STM 5-140 MR:... -
Page 23: Appendix 1 Stm 5-100 Mr G Rd Equipped
Appendix 1 Monoblock STM 5-100 MR + G RD equipped Positive left – Filling right... -
Page 24: Appendix 2 Stm 5-100 Mre G Rd Equipped
Appendix 2 Monoblock STM 5-100 MRE + G RD equipped Positive left – Filling right... -
Page 25: Appendix 3 Stm 5-140 Mr G Rd Equipped
Appendix 3 Monoblock STM 5-140 MR + G RD equipped Positive left – Filling right... -
Page 26: Appendix 4 Stm 5-140 Mr D Rg Equipped
Appendix 4 Monoblock STM 5-140 MR + D RG equipped Positive right – Filling left... -
Page 27: Appendix 5 Accessories For The Central Filling System
Appendix 5 Accessories for the centralized filling system Reinforced soft PVC hose10 x 16 208 859 for connections > 200 mm Polypropylene elbow 444 103 hose-to-hose connection Female connector 280 604 plug, normally closed Male connector 280 605 plug, normally closed Female connector 280 602 free... -
Page 28: Appendix 6 Basic Specification For Filling Circuit Hoses
Appendix 6 Basic specification for filling circuit hoses Operating temperature: – 30°C to + 70°C Maximum relative operating pressure: 300 mbar Resistant to the following liquids: • Electrolyte KOH (solution at 400 g/l) and NaOH (solution at 100 g/l) • Oil 75 W 80 •... -
Page 29: Appendix 7 Basic Specification For The Cooling System Hoses
Appendix 7 Basic specification for the cooling system hoses Operating temperature: – 30°C to + 70°C Maximum relative operating pressure: 500 mbar Resistant to the following liquids: • Electrolyte KOH (solution at 400 g/l) • Oil 75 W 80 • Brake flluid •... -
Page 30: Appendix 8 Basic Specification For Rigid Connections
Appendix 8 Basic specification for rigid connections Base material: baseline inspected annealed copper, as per chapter 4.2.1 of regulation NF A 51.119 Protection: nickel-plated, adhesion as per chapter 4.2 of regulation NF A 91.101 Recommended cross chapter: 40 mm 16 x 2.5 Boring: ∅... -
Page 31: Appendix 9 Basic Specification For Distilled Or Demineralized Water
Appendix 9 Basic specification for distilled or demineralized water Physical characteristics Limpid, colorless, odorless when boiling Resistivity at + 20°C > 30 000 Ω.cm Chemical Characteristics • 5 • Absence of organic matter and reducing substances: COD (chemical oxygen demand) < 30 mg/l (permanganate test) –... - Page 32 Tél. : + 33 (0)1 49 93 19 18 • Fax : + 33 (0)1 49 93 19 50 • www.saftbatteries.com Doc N° RM 04.01 - 21085.2 Informations in this document is subject to change without notice and becomes contractual only after written confirmation by Saft...
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