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Anti-blackout system for grid connected solar
installations (Solsafe concept)
General description
The Solsafe concept is a system which will
automatically switch from a grid feeding
inverter connected to the public grid to a
backup grid powered by an inverter-
charger.
The installation of the Solsafe concept in a
grid connected solar system enables to
secure totally or partially the power supply
in case of a power cut and allows the use of
solar power when the grid is off.
Features & advantages
Backup system for grid connected solar
installation.
Grid feeding with solar inverter.
Hassle free cabling, quick installation
and
easy
commissioning
Solsafe S-Box.
Application Schematic
Minimal configuration
Range of inverters
Compact Series :
o
o All XPC serie
o All C serie
o All HPC serie
Xtender Series :
o
o All XTH serie
o All XTM serie
Xtender
o Software vers. : 1.3.28 and higher
RCC02 / 03 (Only for Xtender series)
o Software vers. : 1.3.32 and higher
with
the
o RCC User level : Expert
Figure 1, Solsafe concept with the Solsafe S-Box
Page 1 / 7
Application Note 003
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Table of Contents
Related Manuals for Studer Solsafe concept
Summary of Contents for Studer Solsafe concept
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Page 1: General Description
Anti-blackout system for grid connected solar installations (Solsafe concept) General description Minimal configuration The Solsafe concept is a system which will Range of inverters automatically switch from a grid feeding Compact Series : inverter connected to the public grid to a... -
Page 2: Detailed Description
Compact The Solsafe concept series) and the ARM-01 Module (for Compact series only). The Solsafe concept is a backup system for grid The wiring schematics for the Solsafe system connected solar installations. and Solsafe three phase system are at disposal... - Page 3 Application Note 003 Solsafe concept situations The Solsafe concept can be described by these four different situations The grid is present K1 / AUX1 is in “bypass mode”. K2 / AUX2 is switched on the grid (feeding grid).
- Page 4 Application Note 003 Solsafe system behavior example The graph below shows in detail the behavior of the Solsafe system in every possible case Grid Secured loads Battery voltage Secured loads power Solar power AUX1 K14-K15 AUX2 General descriptions Grid present and battery in floating phase. The solar production is sold to the grid. No grid, no solar production (night time).
- Page 5 AUX2 specifically programmed to drive the effect. contactor of the source switch-over. The following deviations are monitored : overvoltage and undervoltage Note that Studer Innotec does not supply pre- frequency deviation wired S-Box for three-phase systems. But it is impedance jumps...
- Page 6 ''Solsafe'' with and press SET to validate: Wait until the preset is installed Notes (Only for Solsafe concept with Xtender series and Solsafe concept with Xtender three phase system). Preset “Solsafe” description available in the appendices. Page 6 / 7...
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Page 7: Worldwide Sales And Service
Limitation of responsibility The use of STUDER INNOTEC SA devices is the responsibility of the customer in all cases. STUDER INNOTEC SA reserves the right to make any modification to the product without prior notification. Page 7 / 7... - Page 8 Application Note 003 Appendices - Appendix 1, S-Box scheme (Power) - Appendix 2, S-Box scheme (Control) - Appendix 3, Scheme Compact series and S-Box-25C(-E) - Appendix 4, Scheme Xtender series and S-Box-25X(-E) - Appendix 5, Scheme Xtender three-phase system - Appendix 5.1, List of parts - Appendix 5.2, Example of wiring - Appendix 5.3, Description of the preset Solsafe Appendices...
- Page 9 Application Note 003 Appendix 1, S-Box scheme (Power) Grid Grid Backup Inverter-Charger Grid inverter (Feeding (Consumption grid output output counter) counter) Note : If the ENS-Module is required, it replaces the connections of X4 Appendices – Page 1 / 9...
- Page 10 Application Note 003 Appendix 2, S-Box scheme (Control) X8-NO1 X8-NO2 Grid Inverter-Charger Grid (Consumption output (Feeding counter) counter) Appendices – Page 2 / 9...
- Page 11 Application Note 003 Appendix 3, Scheme Compact series and S-Box-25C(-E) This drawing shows a working principle and should not be considered as a wiring proposal. The local regulation should be respected. In this scheme, the inverter-charger is a simple user of the grid and when the grid is present, the battery gets charged and maintenance comes from the grid.
- Page 12 Application Note 003 Appendix 4, Scheme Xtender series and S-Box-25X(-E) This drawing shows a working principle and should not be considered as a wiring proposal. The local regulation should be respected. In this scheme, the inverter-charger is a simple user of the grid and when the grid is present, the battery gets charged and maintenance comes from the grid.
- Page 13 Application Note 003 Appendix 5, Scheme Xtender three-phase system This drawing shows a working principle and should not be considered as a wiring proposal. The local regulation should be respected. In this scheme, the inverter-charger is a simple user of the grid and when the grid is present, the battery gets charged and maintenance comes from the grid.
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Page 14: Appendix 5.1, List Of Parts
Application Note 003 Appendix 5.1, List of parts The various components listed below are available in kit form at Studer Innotec. Name of the kit Solsafe-Kit-Compact Name of the kit Solsafe-Kit-Xtender_3ph Single-phase Solsafe Kit with Compact series Description Three-phase Solsafe Kit with Xtender series... -
Page 15: Appendix 5.2, Example Of Wiring
Application Note 003 Appendix 5.2, Example of wiring The box The assembling The distances between the bars of support must be respected so At the top of the box are wired : all components of the system can fit in the box. Relays K15, K14, K11, K12 and K13 and fuse holders F11 and F12. - Page 16 Application Note 003 Finally, connect the ENS31 with particular attention to the order of phases Note that the neutral must be connected to the ENS31 otherwise the unit may be damaged. (All references for the ENS31 are in its user manual.) Here are added onto the middle bar the ENS31 relay’s K10.1 and K10.2 and on the bottom bar the ENS31 fuse holder’s F16, F17 and F18.
- Page 17 Application Note 003 Appendix 5.3, Description of the preset “Solsafe” for Xtender series If it is not possible to obtain the preset “Solsafe”, it is possible to set by yourself the RCC -02 / -03 using the parameter description below.Applicable from soft. version 1.3.8 and higher | XTH/M 12 –...