Total Saft SRA Series User manual

Important recommendations
Never allow an exposed flame or spark near the
batteries, particularly while charging.
Never smoke while performing any operation
on the battery.
For protection, wear rubber gloves, long
sleeves and appropriate splash goggles or face
shield.
The electrolyte is harmful to skin and eyes. In
the event of contact with skin or eyes, wash
immediately with plenty of water. If eyes are
affected, flush with water and obtain
immediate medical attention.
Remove all rings, watches and other items with
metal parts before working on the battery.
Use insulated tools.
Avoid static electricity and take measures for
protection against electric shocks.
Discharge any possible static electricity from
clothing and/or tools by touching an earth-
connected part "ground" before working on
the battery.
1. Receiving the shipment
Unpack the battery immediately upon arrival. Do
not overturn the package. Transport seals are
located under the cover of the vent plug. The
battery is normally shipped filled and ready for
installation.
Make sure all items have been received by
comparing with the packing list.
Check for damage or electrolyte spillage.
Report any irregularities to the carrier and to
Saft.
Remove the plastic transport seals. The battery
must never be used electrically with the plastic
transport seal in place as this can cause
permanent damage.
The battery is ready for installation.
2. Storage
Store the battery indoors in a dry, clean, cool
location (0°C to +30°C / +32°F to +86°F).
Make sure that the transport seals remain in
place during storage.
Do not store in direct sunlight or exposed to
excessive heat.
A battery delivered charged (80%) must not be
stored more than 3 months up to 30°C, or
more than 6 months up to 20°C (including
transport). If a charged battery has to be
stored for more than the durations and
associated temperatures mentioned above ,
discharge the cells at 0.2 C5A down to 1V per cell or less.
SRA/SRA LT/SRA HT Ni-Cd Batteries
Installation and operating instructions
A battery delivered discharged and filled may
be stored for many years before it is installed.
If storage is required prior to commercial
service, clean and coat the metallic parts with a
thin layer of neutral vaseline or neutral
petroleum jelly grease approved by Saft. Leave
the battery in its transport case to protect from
dust, moisture and short circuits.
3. Installation
Remove the transport seals and close the vent
plugs.
3.1. Verify that cells are correctly interconnected
and that battery connection to the load is also
correct.
3.2. Check tightness of terminal connecting nuts.
Torque applied must be:
• 10 ± 2 N.m for cells
SRA 75 to140
SRA LT 75 to140
SRA HT 70 to130
• 30 ± 3 N.m for cells
SRA 160 to 375
SRA LT 160 to 375
SRA HT 150 to 350
The connectors and terminal nuts should be
corrosion-protected by coating with a thin layer
of DW33 anti-corrosion greasy film.
3.3. Electrolyte
The electrolyte used is specific for each product
line:
• SRA: E 41
• SRA LT: E 34
• SRA HT: Na 15 L
4. Commissioning
Caution: during constant charging operations,
the battery box must be open.
4.1. The cells are delivered 80 %charged.
Charging and discharging should be done at
constant current.
For a battery stored less than 3months at T<
+30°C, or less than 6 months at T< +20°C,
no charge/discharge operation is required
before use.
For a battery stored for more than 3months or
at T>+30°C, or more than 6 months at
T>+20°C :
• Discharge the battery at 0.2 C5A down to an
average 1V per cell.
• Maintain the battery in open circuit during 8
hours or until the battery temperature is
between 10°C and 30°C.
• Charge the battery at 0.2 C5A for 8hours.
4.2. The cells are delivered discharged
Caution: even if the battery is discharged, there
remains a residual charge that may cause an
electric shock.
Charging and discharging should be done at
constant current.
For a battery placed into service immediately
after delivery or after less than one year of
storage:
•Preferred solution: constant current charge;
charge the battery at 0.2 C5Afor 8 hours.
Caution: during constant current charging the
battery box must be open.
• Constant voltage charge: 1.55V/cell for
20hours with the current limited at 0.2C5A.
For a battery stored for more than 1year:
• Charge the battery at 0.2 C5Afor 8hours.
• Discharge the battery at 0.2 C5Adown to an
average 1V per cell.
• Maintain the battery in open circuit during 8
hours or until the battery temperature is
between 10°C and 30°C.
• Charge the battery at 0.2 C5Afor 8hours.
The battery is ready for use.
5. Charging in service
1.47 V/cell at +20°C (+68°F) with voltage
compensation:
-3 mV/°C/cell (-1.7 mV/°F/cell).
For higher charging voltages, consult your local
Saft representative.
Boost charge according to IEC62973-2.
6. Topping-up
Frequency of topping-up must be determined for
each battery. Topping-up shall be performed
after the first year in order to determine the ideal
topping-up interval which depends on the
charging voltage and actual use of the battery.
Never let the electrolyte level fall below the
minimum level mark. Use only distilled or
deionized water to top-up.
If charge at constant current : operation must be
carried on charged cells with a rest time of
June 2020
-
R
E
D
U
C
E
D
T
C
O
-
UPGRADED
VERSION
-
I
N
2
0
2
0
-

Table A:
Cell type C5Ah 0.2 C5A Electrolyte Topper nozzle
(Ah) (A) reserve (cm3) (mm)
SRA 75 75 15 185 59
SRA 90 90 18 285 59
SRA 110 110 22 280 59
SRA 125 125 25 335 59
SRA 140 140 28 335 59
SRA 160 160 32 575 54
SRA 190 190 38 570 54
SRA 220 220 44 645 54
SRA 260 260 52 765 54
SRA 280 280 56 900 54
SRA 310 310 62 900 54
SRA 340 340 68 1085 54
SRA 375 375 75 1085 54
SRA LT 75 75 15 185 59
SRA LT 90 90 18 285 59
SRA LT 110 110 22 280 59
SRA LT 125 125 25 335 59
SRA LT 140 140 28 335 59
SRA LT 160 160 32 415 39
SRA LT 190 190 38 410 39
SRA LT 220 220 44 465 39
SRA LT 260 260 52 555 39
SRA LT 280 280 56 650 39
SRA LT 310 310 62 645 39
SRA LT 340 340 68 785 39
SRA LT 375 375 75 780 39
SRA HT 70 70 14 185 59
SRA HT 85 85 17 285 59
SRA HT 105 105 21 280 59
SRA HT 115 115 23 335 59
SRA HT 130 130 26 335 59
SRA HT 150 150 30 575 54
SRA HT 175 175 35 570 54
SRA HT 200 200 40 645 54
SRA HT 245 245 49 765 54
SRA HT 265 265 53 900 54
SRA HT 290 290 58 900 54
SRA HT 315 315 63 1085 54
SRA HT 350 350 70 1085 54
minimum of 2 hours.
If charge at constant voltage on the train, the
topping-up can be carried out at any time.
Batteries not equipped with a water filling
system (typical frequency of topping-up is
every 6 months):
• No electrolyte level measurement is necessary
if you use a Saft cell-topper, which allows the
correct level to be obtained by a simple nozzle
setting (see nozzle lengths in Table A). If a cell-
topper is not available, the electrolyte level
must be measured.
• Insert a transparent glass or plastic tube (alkali
resistant, 5 to 6 mm in diameter) vertically into
the cell vent until it touches the top of the
plates. Close the top end of the tube by putting
a finger on it and remove it from the cell. The
height of the liquid in the tube indicates the
electrolyte level.
Cell type Level (mm)
high low
SRA 75 to 140 66 15
SRA 160 to 375 75 15
SRA LT 75 to 140 66 15
SRA LT 160 to 375 59 15
SRA HT 70 to 130 66 15
SRA HT 150 to 350 75 15
Batteries equipped with water filling system
(typical frequency of topping-up is every 12
months):
• Remove transport seals and connect hydraulic
tubing between cells up to a maximum of 50
cells.
• Make sure that the tubes are completely
inserted for a good seal.
• The hydraulic connection of cells must be in
parallel to the electrical connection, in order to
avoid voltage differences of more than 1.2 V
between two hydraulically connected cells.
• The hydraulic connection must be horizontal in
order to avoid siphoning.
• The water filling circuit output must not be too
close to electrical equipment, electrical circuit
and metallic structure.
• Water filling circuit input must be connected to
the self-closing inlet.
• Topping-up can be performed (for SRA range,
every 6 years if the annual average cell
temperature is below 30°C and the battery is
used as a back-up battery) by gravity or using
adapted pump with a flow rate of 0.7 l/min at a
relative pressure of 0.3 bar maximum.
7. Preventive maintenance
Maintenance operations (not including the
topping-up operation): periodic maintenance
should be carried out at least every 5 years. And
for SRA range, it shall be carried out up to every
10 years if the annual average cell temperature
is below 30°C and the battery is used as a back-
up battery.
For detailed maintenance, please refer to the
maintenance manual of the battery.
• Keep the battery clean using only water. Do not
use a wire brush or solvents of any kind. Vent
plugs can be rinsed in clean water.
• Check the torque of all terminal screws. Coat
with DW33 anti-corrosion greasy film all the
terminal nuts and cell connectors.
• Check charger settings. It is very important that
the recommended charging voltage remains
unchanged. High water consumption of the
battery is usually caused by improper voltage
setting of the charger.
8. Electrolyte
Do not change the electrolyte during the life time
of the cells.
9. Environment
To protect the environment all used batteries
must be recycled. Contact your local Saft
Saft
ESS & Mobility
26 quai Charles Pasqua
92300 Levallois-Perret
Tel: [phone]
Fax: [phone]
www.saftbatteries.com
Doc N° 21881-2-0620
Edition: June 2020
Data in this document is subject to change without notice and
becomes contractual only after written confirmation.
Société anonyme au capital de 31 944 000 €
RCS Nanterre 383 703 873
Published by the ESS & Mobility Communications Department
SRA/SRA LT/SRA HT Ni-Cd Batteries