- Knowledge Base
SSX — Smart String Box. Let's explain the features
The monitored information facilitates the operating and maintaining tasks of the park,
for a better performance and higher output of the solar park.
Webdom SSX is composed of a main board and up to 9 easy expandable sensor boards (current and voltage).
Hall effect sensors converts current flow magnetic field into a proportional voltage. Sensors are protected with a magnetic shield.
2, 4, 6, 8, 10, 12, 14, 16 Strings DC inputs in a modular fashion, using 2 current channels module boards. 40A max/Channel.
Fail-safe data recording in the last 365 days: Neither in the event of a supply voltage outage, save weather stations data to protect the plant.
Optional voltage sensor board capable of measuring up to 1500VDC using an external cable.
Electronics include polycarbonate protective cover with custom logo.
Data can be gathered using Modbus-RTU communication protocol, up to 115.2kbps with independent input/output connectors.
Current and voltage boards includes a temperature sensor that tracks evolution of heat for each connected string.
16 Total number of independent strings supported by SSX.
40A Maximum current supported by the Hall Effect current sensors.
360 Day available storage time supported by the on board datalogger.
Explore Smart String Box
The SSX - Smart String Monitor is the ideal complement for the photovoltaic combiner box, that allows you to connect several PV strings in parallel, and measure the current flowing through each string. The main goal is to facilitate the operation and maintenance task of the PV plant. The string current are measured by Hall effect sensors, and DC voltage is also being measured connecting an external cable.
In case of a sensor failure you don’t have to replace the whole main board but only the defective board. Voltage board includes one DC voltage channel, and voltage to be measured should be conduit to the Sunclix connector of the DC voltage board using an external cable. Remote data can be gathered using Modbus-RTU protocol, with Data+, Data-, GND and Shield connectors. Independent terminal blocks for input and output communication cables are being used.
The SSX is composed of a main board (main datalogger and Modbus interface), and current and voltage sensor boards (up to 9 boards).
Each current board sensor monitors one or two string inputs, up to 40A per string, being easily adaptable to the main board.
Easy to Replace
The current and voltage boards can be exchanged individually through two easy manipulating screws, without removing the main board. This design streamlines spare tasks and minimizes the out of service time.
In case of a sensor failure you don’t have to replace the whole main board but only the defective board.
Verification of operating conditions in environments with extreme temperatures and high relative humidities, typical in this kind of installations.
UL 1741 (optional)
Your assembly line
Many factories have assembly lines that are used to put together a variety of product models. Our semi-finished assembly SSX – Smart String Box provides spacers and screws to fix the board with the mounting plate inside the cabinet. You can easily add the SSX from workstation to workstation until the final assembly is produced.
SSX — Smart String Box. This is how it works.
The SSX is composed of a main board (main datalogger and Modbus interface), and current and voltage sensor boards (up to 8 boards). Each current board sensor monitors one or two string inputs, up to 40A per string, being easily adaptable to the main board.
You can customize the SSX — Smart String Box look and feel by changing the displayed name, the logo, or both.
Include polycarbonate protective cover with custom logo, spacers and fastening screws.
PCB Metal Spacers
6 metal spacers and screws needed to hold the electronic on mounting plate
Includes analog inputs (1x0-10V, 1 x 4-20mA, 2xPT100 / PT1000)
Digital inputs / outputs (4xDI, 4xDO)
Flash Memory Datalogger
Includes datalogger with storage capacity of up to 6 months.
Below you will find various application notes for the Smart String Box each has been developed according to different needs and environments.
The Smart String Monitor is integrated into PV string boxes and allows knowing the main parameters and detect possible failures in the PV modules. Webdom delivers strings boxes mounted and pre-wired in polyester enclosures, with fuses in positive and negative lines, surge voltage protection and main switch.
Power supply can be with external AC line 110/230VAC, or using a self-powered DC-DC converter. Cabinet for indoor/outdoor use with skew roof, made of insulating, slow-burning and self-extinguishing composite: Polyester + Glass fiber.
In case of power failure or mains, the datalogger incorporated in the electronic board keeps all historical data for 1 year. SSX analog inputs allow you to connect pyranometers, anemometers, temperature and humidity sensors, among others. The analog inputs are type 4-10mA, 0-10V, PT100 / PT1000.
With this system the sensors are connected directly to the box strings of each row of PV panels. Consequently meters minimizing wiring and lower installation costs and maintenance.
The digital inputs and outputs electronics Smart String Box allow you to connect all types of sensors for a more secure installation. Attaches an opening sensor in the door of the Smart String Box and thus control access. Connects to a theft detector PV panels through a closed loop fiber optics.
For installations where a box of 32 Strings required with current sensors 16, 32 Strings two to two with the same control SSX-Smart String Box electronics are monitored. Each plate of two sensors of the electronic control holds up to 40A. The following diagram shows the comparative wiring between a facility that requires 32 (left) and 16 Strings (Right).
The following diagram shows the comparative wiring between a facility that requires 32 (left) and 16 Strings (Right).
24 Strings mounted vertically
DOCUMENTACIÓN Y DESCARGAS