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STM, Monitoring of photovoltaic strings

STM, Monitoring of photovoltaic strings
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STM, Monitoring of photovoltaic strings - 1

STM Monitoring photovoltaic strings

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Photovoltaic generation Climate change and global warming are a reality, and the only option we have to change this situation is to use efficient and sustainable energies that will keep our planet habitable for future generations. The goal is not just to promote renewable energies, but also to get the maximum efficiency from this kind of installation. As a result, we need systems that are capable of permanently monitoring, running and managing installations, and of interacting with all their components to ensure optimal performance.

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STM, Monitoring of photovoltaic strings - 3

Intelligent system for monitoring photovoltaic installations STM The STM is a monitoring device that can be easily adapted to the needs of the installation. Its capacity to monitor data and the ability to integrate it into any SCADA using wired or wireless communications make the STM the ideal device for managing the most important parameters of an installation. Everything you need for efficient management In a traditional monitoring system, data is sent every second, which saturates communications with the SCADA that manages the photovoltaic farm; moreover, the alarms are programmed on the...

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Shunt measuring system Hall effect measuring system STM-S Analyzers for photovoltaic strings with measurement via shunts STM-H Photovoltaic string analyzer with measurement using Hall effect transformers Direct measurement via shunts, up to 30 or 45 A (depending on model) Indirect measurement via hall effect transformers, up to 50 or 100 A (depending on model) Models with 12 or 24 channels Models with 6, 10 or 20 channels Self-powered from the DC converter: 1500 VDC to 24 VDC Wireless radio frequency communication at 868 or 915 MHz Wireless radio frequency communication at 868 or 915 MHz...

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Shunt measurement Hall effect measurement Direct measure with shunt Indirect measure with hall effect transformer This device has a zero-insertion input terminal where a string, or a combination of several strings, is connected to be measured. The measurement using the shunt ensures the best measurement accuracy. The maximum current is 45 A. Thanks to the indirect measurement, the STM is able to measure the following range of currents without interrupting the electrical circuit: › 10 or 20 channels up to 50 A › 6 channels of up to 100 A. PRE VENTS INTERRUPTIONS Robust The new STM provides a...

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How STMs communicate Wireless RF system Wireless solution with RF communications. This type of communication uses a longdistance wireless data transmission technology (<15 km). Combined with string monitoring, it is the most efficient communication system on the market. PowerStudio SCADA Value-added services When commissioning STM devices, it is very important to consider the layout of the terrain. Because it communicates wirelessly using radio frequencies, you have to make sure that all the devices are visible to the management and control software. To make sure of this, a Ground Mapping...

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RF communications accessories To ensure the STMs communicate properly with the SCADA system for the farm, we have to install gateways. They send the information received from STM equipment in real time, via radio frequency, using the Modbus TCP protocol, to the SCADA software for the photovoltaic plant. The communications kit includes the enclosure, media converter and all the protections necessary to ensure its proper operation. References HALL EFFEC T ME A SUREMENT Model SHUNT ME A SUREMENT Model

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Vial Sant Jordi, s/n 08232 Viladecavalls Barcelona (Spain) t. +34. 93 745 29 00 info@circutor.com C2E823. CIRCUTOR, SA reserves the right to modify any information contained in this catalogue.

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