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Summary of Contents for RedEarth DropBear
- Page 1 DropBear_UserManual DropBear Home Battery System – On and Off-grid Selectronic-Fronius with Lithium Batteries (Single Phase) User Manual RE_PROD_0012 Version2 Page 1 of 22 Date Issue 28/07/2020...
- Page 2 DropBear_UserManual RedEarth Energy Storage Ltd 15 Fienta Place Darra QLD 4076 Australia Tel: 1800 733 637 Email: info@redearth.energy Web: www.redearth.energy RE_PROD_0012 Version2 Page 2 of 22 Date Issue 28/07/2020...
- Page 3 The DropBear must only be installed by suitably qualified personnel. Many of the procedures covered in the INSTALLATION sections of this manual have inherent risks. Whilst the DropBear is designed to be safe, including residual current device and double insulated cables, the voltages connected or generated by the equipment are hazardous and potentially fatal.
- Page 4 PV Solar array and generator with either auto or manual start The DropBear is designed to be installed indoors or outside in a shaded area against a wall, in a protected environment. A changeover switch is included in case of system failure. In this case the loads can then be run off a generator until the system is operational again.
- Page 5 DropBear Weight: 205kg without any Lithium batteries (42kg per battery) Dimensions: 200.5 H x 131.4 W x 65.6 D [cm] DropBear Minimum Clearance Dimensions: 210 cm H x 166.7 cm W x 117.4 cm D RE_PROD_0012 Version2 Page 5 of 22...
- Page 6 DropBear_UserManual Overview The Inside The DropBear has two separate areas, one for the batteries and the other for the switches, electronic equipment. Each section has a key-lockable door. The top enclosure contains the-electronic equipment, switches and AC connection terminals. The “AC Breakers” window shown below contains all the AC protective and isolation points as well as the changeover switch.
- Page 7 If purchased without the full capacity of twelve (12) self-managed batteries (PowerPlus Energy’s ECO 4840), you may purchase additional batteries along with the appropriate battery cables from RedEarth Energy Storage. RE_PROD_0012 Version2 Page 7 of 22...
- Page 8 SP Pro inverter, the Fronius and the battery bank. Some parameters may need to be adjusted during installation (eg. Generator size, maintenance run, etc). Please check DropBear Commissioning section in this manual as well as the Selectronic Manual. You can reach RedEarth Energy Storage Ltd...
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Page 9: Internal Components
DropBear_UserManual Internal Components Battery Inverter The Selectronic SP Pro operates as an inverter as well as a charger, it will charge the batteries by rectifying AC into DC power as well as invert the batteries DC power into AC usable power. With many operating modes, our most popular is the "Self-Use"... - Page 10 Internal Components ByPass Feature In the event of a system (battery or PV inverter) failure, the DropBear is fitted with a three-position changeover switch that can operate as a ByPass, supplying power to the loads directly from the generator (or grid).
- Page 11 Internal Components Generator/Grid Because the DropBear is an off or on grid system, it is possible to connect it to the grid, a generator or both. These options must be specified upon purchase as the electrical design varies with each option. However, retrofitting is also available.
- Page 12 DropBear_UserManual Internal Components Temperature Sensor A temperature activated relay is positioned on the rear panel behind the top part of the Selectronic inverter as shown in the picture. This relay is connected to the four (4) fans on the roof and will turn them on once the set temperature is reached.
- Page 13 DropBear_UserManual How to Power-up / Shutdown my DropBear Power-up To power-up the unit you must follow the steps below. 1. Turn on individual battery breakers. This will charge up the capacitors inside the inverters. The LED on the three inverters will flash and beep.
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Page 14: How To Operate
When this type of operation is desired, this is what the AC breakers must look like after performing Step 5 of Power-up Procedure (see How to Power-up/shutdown my DropBear). ByPass Operation In the event of maintenance or failure of the SP Pro and/or the Fronius and there is no power output from the system, you can configure the system to operate in ByPass mode. - Page 15 DropBear_UserManual How to Operate Restart under low SOC This procedure must be taken when the SP Pro has stopped inverting (providing 230V) but is still turned on (has lights on the front display). As mentioned previously in “Low SOC Shutdown”, when the SP Pro identifies the batteries at a low SOC, it will stop producing 230V to avoid too deeply discharging the batteries and therefore damaging them.
- Page 16 Clear any vegetation or overgrowth over the solar panels Inspect conditions of solar panels, cables, array frame for damage or corrosion End of Life Recycling Please contact RedEarth Energy Storage to arrange recycling of your battery. RE_PROD_0012 Version2 Page 16 of 22...
- Page 17 DropBear (right of the AC breakers). Monitoring Registering 1. OPTIONAL: During testing and commissioning, RedEarth will setup an account for the end user and send out the following invitation. 1. If you haven’t received this email from us, please email support@redearth.atlassian.net...
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Page 18: System Status
DropBear_UserManual Monitor My DropBear How to monitor my system? Once signed in, you will see the following page. Overview Tab Power flow between solar, Battery State of grid, load and Charge (SOC) battery, in kW LIVE DATA - Illustrates the movement of power at this given moment, in terms of PV production, battery power, grid and load. - Page 19 DropBear_UserManual Monitor My DropBear In the example on the previous page, 123.61kWh energy was produced from solar. 21.09kWh of it was exported to the grid and 102.52kWh was consumed by the loads and 0W was stored in the battery. 123.61kWh energy was produced from solar. 21.09kWh of it was exported to the grid and 102.52kWh was consumed by the loads and 0W was stored in the battery.
- Page 20 DropBear_UserManual Monitor My DropBear Users Tab This tab shows the users who can view this system. This will include you, the customer, and staff involved in monitoring your system. Alert Tab The alert tab shows any errors or warnings received about the system. You will also receive an email if an alert occurs.
- Page 21 The generator should only turn on when the battery reaches the low SOC level. If this level is reached frequently, this could mean that the loads are too large compared to the battery size. We recommend either reviewing your loads or contacting RedEarth for more energy storage. RE_PROD_0012 Version2...
- Page 22 DropBear_UserManual Options available from RedEarth RedEarth can provide several options for the DropBear • Additional batteries for system expansion. • Extended warranty options. • Miscellaneous spare parts (including indicator lights for Generator start). • Solar kits with combiner boxes, PV panels, racking and pre-terminated PV cables.
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