SCSRA1B600RD00MV00 WIMA, SCSRA1B600RD00MV00 Datasheet - Page 4

• Manufacturer Part Number: SCSRA1B600RD00MV00
• Description: Supercapacitors 2.5V 600F 20% TOL RECTANGULAR
• Manufacturer: WIMA

Specifications of SCSRA1B600RD00MV00

• Capacitance: 600 Farads
• Tolerance: 20 %
• Voltage Rating: 2.5 Volts
• Operating Temperature Range: - 30 C to + 65 C
• Product: Super Capacitors
• Capacitance Tolerance: ± 20%
• Capacitor Mounting: Chassis
• Lead Spacing: 36mm
• External Depth: 26.5mm
• Rohs Compliant: Yes
• Svhc: No SVHC (20-Jun-2011)
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: R-600/2.5/20 SUPERCAP

Technical Data and Applications of
WIMA Double-Layer Capacitors
(Continuation)
When properly treated WIMA SuperCaps
have a service life beyond 10 years and
can easily sustain more than 500.000 char-
ge/discharge cycles. The efficiency is far
higher than 90%.
Life time expectancy for WIMA SuperCaps
WIMA SuperCaps are showing foIlowing
advantages in comparison with other ener-
gy storage solutions:
” Low internal resistance (less than 1/10
of what a usual battery exhibits)
” Release of high currents (10 to 100
times more than batteries)
” Maintenance-free operation
” No risk of damage due to complete
discharge of the component
” H igh life expectancy
” Usage in isolated systems, e. g. inac-
cessible areas, is unproblematic
” Comparatively low weight
WIMA Double-Layer Capacitors are par-
ticularly suitable in applications where
high and even highest currents - not in
pure AC operation - occur. By combining
the advantage of conventional capacitors
as fast suppliers of electricity with that of
batteries as notable energy reservoirs the
SuperCap represents the link between bat-
tery and conventional capacitor.
Capacitance
per Surface
Energy-
density
Power-
density
Advantages in Comparison with
other Energy Storage Solutions
Standard
Capacitor
<
<
<
1
0.01 Wh/kg
0.1 kW/kg
m
F/cm
2
1000 000
SuperCap Battery
(1 F/cm
<
>
10 Wh/kg 100 Wh/kg
1 kW/kg 0.1 kW/kg
2
)
m
F
In general Double-Layer Capacitors are
applied for voltage support, for saving or
for replacing conventional battery or char-
ger solutions. The typical application is the
quick supply of several 100 A to 1000 A in
the direct current field.
Slip Control in Wind Power
In large-scale wind turbine systems, slip
controllers are used to control the rotation
speed by altering the angle of the rotor
blades. The drives are mains-indepen-
dent and if electrically controlled use the
energy stored in batteries or double-layer
capacitors. These storage devices have to
meet stringent requirements. During winter
time the temperatures in the wind tower
top housing often reach around -40° C,
and during summer time they may easily
go up to more than +60° C during operati-
on. The current of 200 A necessary for the
breakaway torque of e. g. a 3 kW motor
presents big problems to batteries due to
the ambient conditions described. Their
short life time and frequently necessary
maintenance renders them unsatisfactory.
However, when properly dimensioned,
modern SuperCap solutions enable a
maintenance-free usage of the electrical
storage device of minimum 10 years.
Start of Micro-Turbines, Fuel Cells or
Diesel-Electric Generator working as
Power Set
For micro-turbines driven with natural gas
for generation of electrical energy on oil
platforms, in part also for gas pumping
stations, in sensible areas like hospitals
and huge factories the use of SuperCap
modules to replace conventional starter
batteries (by experience needing replace-
ment every 2 to 3 years) is the optimum
choice. Usually about 300 kJ of electrical
energy at a system voltage of 240 V are
needed for a turbine start-up time of 10
to 20 s.
When starting special micro-turbines or for
bridging during start of a fuel cell working
as emergency power supply, generally a
few 100 kJ of electrical energy are required
for a system start time of approx. 10 to
20 sec. The stored energy time is approxi-
mately 20 s. Due to the system voltage of
48 V, 22 cells of 1200 F are cascaded in a
Application Examples
module to achieve the setpoint voltage in
order to replace a battery block.
For start-up of generators for energy
supply of autonomous telecommunication
stations which are located decentrally
in a tight network but supplied with fuel
the new double-layer capacitors would
provide a solution. Right now tests are run
with 14 V series connections (70 to 100 F)
which should render a maintenance-free
service. After three starting processes in a
sequence their energy with 300 to 500 A
each flowing (depending on the size of the
motor) is used up. The now running gene-
rator, however, immediately supplies them
with electrical energy again.
Starting huge Railway, Naval or Truck
Motors
The start of V16 or V24 cylinder motors
(6000 kW), e. g. for generator drives of
diesel-electric trains or start of a naval
diesel engine requires considerably high
currents. 1300 A are quite usual which can
be covered by capacitor units of 450 to
600 F at 28 V. Frequently the crankshaft is
turned by two starters on both sides (e. g.
7 kW each with a positive switch off after
9 s for 2 min), in order to avoid torsion
of the huge mass. The low total internal
resistance of less then 3 m¸ which is
beyond reach for batteries the capacitor
solution is outstanding.
Recuperation of Braking Energy
In times of resource shortage of fuel the
highest possible recuperation of braking
energy is a challenging aim. While recup-
eration in electric train drives or in hybrid
busses is already practiced since long, for
non-mains connected vehicles the energy
recuperation to the on-board battery has
only be realized to the extent of few per
cent. The basic reason is the charge cur-
rent limitation of batteries where the recu-
perable energy is obtained at very high
currents in a scope of milliseconds. If for
example 1 ton shall be decelerated from
100 km/h to 0 km/h 400 kJ are released,
for 10 tons it is ten times as much. So far
no suitable high-energy storage devices
were available (guideline values: 500 A
to 1000 A). This is the domain of the new
SuperCaps since in the foreseeable future
even most modern battery systems will not
be in a position to cope with such energy.
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