Power Ring Film Capacitors
A Fully Capable 500kW DC Link Solution
for Solar, Wind, and Network Power
Power Ring Film Capacitor™
3000 µF, 1100 Vdc
The 700A308911-163 Power Ring is a
UL-recognized 1100 Vdc, 3000 µF DC Link
Capacitor with an ESR of 150 micro-Ohms
at 20 kHz and an ESL of 6-8 nH.
(Note: 600, 1200 & 1500V versions also
available.)
Electrical Specifications
SBE Part #:
700A308911-163
Capacitance/Tolerance:
3000 µF ±10%
DC Voltage Rating:
1100 Vdc
ESL:
TM
SBE UL-recognized Part 700A308911-163
6-8 nH at the typical “half bridge”
type package connection
0.34°C/W (case side cooling only)
0.17°C/W (case and bus side
cooling only)
Thermal Resistance:
Dielectric/Construction:
Metallized polypropylene.
Single section design.
2 - windings
Dielectric Withstand
Voltage:
UL Recognition:
UL File #:
0.4
0.35
0.3
Operating Temperature:
-40°C to +85°C at full
DC voltage rating
Voltage, Temperature
Contact SBE for applications
De-rating:
above 85°C
System Fault Current
Rating:
RMS Current Rating:
1200
1100
1000
Units 100% tested at DC
potential of 1275 Volts for
two minutes at 25°C
UL 810
20,000 Amps maximum
E364956
Typical ESR vs. Frequency:
75 C Hotspot 50 FIT (1 x Rated V)
700 Arms at 50C Case Temperature
50 FIT Provides an Operational Life
> 200,000 Hours
ESR, milli-Ohms
0.25
0.2
0.15
0.1
0.05
0
0.01
Maximum Ripple Current (A rms)
900
800
700
600
500
400
300
200
0.1
1
10
100
100
0
25
30
35
40
45
50
55
60
65
70
75
Frequency, kHz
Case Temperature (
o
C)
SBE reserves the right to amend design data
At the Leading Edge of Film Capacitor Technology®
Power Ring Film Capacitors
TM
SBE UL-recognized Part 700A308911-163
Mechanical Specifications
Dimensions:
See layout drawing for details
Terminals:
Tin plated copper, 0.032” thick
Bus Structure:
Tin plated copper, 0.080” thick
each plate.
Insulator:
Nomex or Mylar - UL 94-V0
Encapsulation: Capacitors potted with RTV
case - UL 94-V0
Marking: SBE Inc.
SBE company identification
700A163
SBE “short form” part number
3000 µF ±10% Capacitance value and
tolerance
1100 Vdc
DC voltage rating
yyww-lot#-unit Serial number (date code,
lot number, unit number)
UL Recognition logo
Layout Details:
NOTES:
1.
DC input tabs shown in multiple locations, for
illustrative purposes only
3X 37.00
4X
9.00 THRU
DETAIL A
(IGBT Interface, 6 places)
Note 1
345 MAX
A
150.0
147.5
115.0
800 MAX
147.5
150.0
96 MAX
25 MIN
SBE, INC.
81 PARKER ROAD
BARRE, VT 05641 USA
802.476.4146 FAX: 802.661.3950
TITLE
Capacitor Assembly, 3000uF,
1100VDC
DWG. NO.
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF SBE. ANY
REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF SBE IS PROHIBITED.
700A163
DO NOT SCALE DRAWING
SIZE
A
REV
01
SHEET 1 OF 1
Contact SBE Inc. to discuss your specific requirements.
SBE reserves the right to amend design data
SBE Inc. 81 Parker Road
Barre, Vermont 05641 USA
telephone:
802.476.4146
fax:
802.661.3950
web site:
www.SBElectronics.com
e-mail:
PowerRing@SBElectronics.com
Power Ring Film Capacitors
Double the Life or Power of your Inverter!
• Immediately reduce capacitor costs per kW rating
or life requirement – or BOTH!
• Increase life and efficiency of inverter
• Increase reliability and reduce maintenance costs
TM
SBE UL-recognized Part 700A308911-163
In today’s most advanced solar energy systems, Power
Ring Film Capacitors™ are the DC link capacitors used
in inverters and other power conversion systems. The
Power Ring Film Capacitor
TM
greatly reduces both the
total system cost per kW and component complexity
requirements, while increasing long-term reliability
required in today’s demanding environments of the
power grid. Often, we can achieve a 30 – 40% cost
reduction or a doubling of power and/or lifetime at the
same cost level.
SBE has designed multiple options for the DC Link
solution in 500kW rated modules (smaller versions for
SBE Power Ring Film Capacitors
TM
for solar applica- 200 – 400kW are available). The solutions are modular.
tions have typical bus voltages ranging from 500 to
For a leading edge power dense 1MW+ system, simply
1500 Vdc and inverter stage ripple currents ranging combine one or more of these units “end to end”.
from 100 to 1500 Arms at 2.5 – 7.5 kHz frequencies A one piece version is also available for any desired
(Visit www.sbelectronics.com/products/specifications/
system size.
for details on the individual capacitor elements).
There are 3 styles of DC Link for Solar, Wind, and
The SBE engineering team can help you with an opti-
Network Power:
mized bank design which can drop in to your existing
space or allow you to create a leading edge new design.
• 700A163 is the most space efficient horizontal
Depending on ripple current, lifetimes range from
configuration. In order to complete assembly,
100,000 to over 500,000 hours at typical 45 – 60°C
this unit ships with capacitors and bus separately.
ambient conditions for this market.
Because of connections interference, the IGBTs
must be connected to the bus first and the capaci-
SBE can usually provide a “drop in” bank solution to any
tors mounted after.
existing film capacitor configuration to facilitate field
testing and system evaluation. It also allows for conve- • 777A103 is a highly space efficient horizontal
nient implementation of second sourcing since the “DC
design that allows for greater IGBT mounting
Link bank” is not changed dimensionally – but cost and
flexibility which can be mounted at the customer
performance are improved.
site to a fully assembled – integrated DC Link
shipped as one piece. These designs also allow for
SBE’s approach is to maximize the Power Ring
a thicker copper connections system at the IGBT
capability of ripple current per micro-Farad to obtain
(and typically DC input) for best cost optimization.
the best system power density performance available
in the industry for your component dollar and your • 777A104 is a highly space efficient vertical design
that has the minimal surface area by stacking the
cubic volume of space. In doing so, the DC Link bank is
2 x 1500µF capacitors on top of each other with
reduced and more tightly coupled to the IGBT.
a thick copper bus for high current density. The
IGBT connections are available for connection at the
customer site to a fully assembled integrated DC Link.
SBE reserves the right to amend design data
At the Leading Edge of Film Capacitor Technology®
Power Ring Film Capacitors
TM
SBE UL-recognized Part 700A308911-163
For some customers, the final bank size that meets all
requirements may be too small for all system/grid event
mitigation. In such cases we have created the “bank
hardener” which combines the “Power of the Ring
TM
with the energy storage efficiency of electrolytics”. This
technique allows for achievement of the desired goals
simply by adding storage bank micro-Farads to handle
all system requirements.
SBE’s Bank Hardener™ allows users of large micro-Farad
banks of aluminum electrolytic, film, or super capaci-
tors to “buffer” the bank from the DC link high ripple
current need of the IGBT yet still meeting the storage
needs of the larger micro-Farad banks. These storage
needs are typically grid ride through, event control, and
driver related needs. This industry-first configuration
can be used to achieve one of two highly advantageous
outcomes:
1.
Reduced Aluminum Electrolytic bank size, cost,
and failure points - The overall bank of capacitors
can contain fewer capacitors, at much lower cost,
yet extend the life of the bank by up to 2 to 3 times.
2. Increase Power
- The design can facilitate a
substantial system power increase utilizing the
same volume allocated to the original bank, which
is perfect for the migration of existing tightly packed
power cabinets to 0.5MW or 1MW+ system levels.
Lastly, there is no need for the full bank to reside in the
same cabinet any more since the Power Ring buffer
will accommodate all of the tightly coupled DC Link
requirements allowing the storage bank portion to be
positioned anywhere convenient in the system environ-
ment.
SBE is engaging designs in the industry globally.
We are ready to introduce your team to the great
benefits that others in the industry are imple-
menting in their next generation systems. Feel free
to download our Solar and Wind
presentation at
w w w. s b e l e c t r o n i c s . c o m / a p p l i c a t i o n s /s o l a r /
and contact us to set up a call or to discuss your system
requirements.
Bank Hardener
1MW Implementation of 777A
#SBE-Solar4-page-A163-02/14
1MW Implementation of 777A
SBE reserves the right to amend design data
SBE Inc. 81 Parker Road
Barre, Vermont 05641 USA
telephone:
802.476.4146
fax:
802.661.3950
web site:
www.SBElectronics.com
e-mail:
PowerRing@SBElectronics.com
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