{"id":7491,"date":"2026-01-29T15:34:09","date_gmt":"2026-01-29T14:34:09","guid":{"rendered":"https:\/\/q3-energie.de\/technical-solutions-for-photovoltaic-systems\/substation-monitoring-for-low-voltage-networks\/"},"modified":"2026-05-26T14:50:31","modified_gmt":"2026-05-26T12:50:31","slug":"substation-monitoring-for-low-voltage-networks","status":"publish","type":"page","link":"https:\/\/q3-energie.de\/en\/technic\/substation-monitoring-for-low-voltage-networks\/","title":{"rendered":"Substation monitoring for low-voltage networks"},"content":{"rendered":"\n
\"Trafostations\u00fcberwachung<\/span>
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Substation monitoring for low-voltage networks<\/h1>\n\n\n\n
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Real-time monitoring of substations, lines and load flows \u2013 for grid operators, industry and large-scale PV plants.<\/strong><\/h3>\n\n\n\n
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Retrofit existing substations \u2192<\/a><\/div>\n\n\n\n
Communication & data transmission \u2192<\/a><\/div>\n\n\n\n
System structure of the Trafobox \u2192<\/a><\/div>\n\n\n\n
Why digitalisation is indispensable \u2192<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n
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What is substation monitoring?<\/h2>\n\n\n\n
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Substation monitoring enables the continuous recording and analysis of electrical parameters in low-voltage distribution systems and substations.<\/p>\n\n\n\n

Typical measured values:<\/p>\n\n\n\n

\u25a0 Current per conductor (up to several hundred amperes)\u25a0 Voltage and power values\u25a0 Power factor (cos \u03c6)\u25a0 Temperature in the station environment\u25a0 Load flow direction<\/h3>\n\n\n\n
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The aim is to make the station\u2019s status transparent at all times and to detect critical conditions at an early stage.<\/p>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n

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Typical application areas for substation monitoring<\/h2>\n\n\n\n
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Trafoboxes are used in particular for:<\/p>\n<\/div>\n<\/div>\n\n\n\n

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Commercial and industrial sites<\/h3>\n<\/div>\n<\/div><\/div>\n\n\n\n
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Storage and hybrid systems<\/h3>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n
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Low-voltage networks of grid operators<\/h3>\n<\/div>\n<\/div><\/div>\n\n\n\n
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Charging infrastructure for e-mobility<\/h3>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n
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PV systems and feed-in points<\/h3>\n<\/div>\n<\/div><\/div>\n\n\n\n
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Decentralised energy systems<\/h3>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n\n\n
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Substation monitoring enables reliable analysis and assessment of grid and load conditions \u2013 in both existing and new energy systems.<\/h3>\n<\/div>\n\n\n\n
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Why is transformer monitoring indispensable today?<\/h2>\n\n\n\n
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The requirements for the power grid have changed dramatically:<\/strong><\/p>\n\n\n\n

Increasing feed-in from photovoltaicsLoad peaks due to e-mobility and storageDecentralisation of power generationHigher requirements for grid stability<\/p>\n\n\n\n

Without monitoring, this results in:<\/strong><\/p>\n\n\n\n

Non-transparent load situationsDelayed fault detectionUnplanned outages<\/p>\n\n\n\n

With substation monitoring:<\/strong><\/p>\n\n\n\n

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early fault detection<\/p><\/div>\n\n\n\n

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better grid utilisation<\/p><\/div>\n\n\n\n

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higher security of supply<\/p><\/div>\n<\/div>\n<\/div>\n\n\n\n

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\"Futuristic\n\t\t\t\n\t\t\t\t\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n
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Learn more about the Q3 Substation Monitoring product \u2192<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n
\"Trafostations\u00fcberwachung<\/span>
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How does the retrofit substation monitoring work?<\/h2>\n\n\n\n
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Monitoring is carried out via compact measurement systems directly in the station:<\/p>\n<\/div>\n<\/div>\n\n\n\n

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Current measurement via split-core current transformers (non-invasive)<\/strong><\/p><\/div>\n\n\n\n

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Data processing in the box<\/strong><\/p><\/div>\n<\/div>\n<\/div>\n\n\n\n

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Voltage measurement directly on the grid<\/strong><\/p><\/div>\n\n\n\n

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Transmission via LTE or LoRaWAN<\/strong><\/p><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

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Special feature: Installation is carried out without intervening in existing systems \u2013 ideal for retrofitting.<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n

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System structure of substation monitoring<\/h2>\n\n\n\n

Substation monitoring records electrical parameters directly in the distribution system and transmits them to higher-level systems for analysis.<\/p>\n<\/div>\n<\/div>\n

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Which data is recorded?<\/h2>\n\n\n\n
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Typical parameters:<\/em><\/p>\n\n\n\n

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Current per phase (e.g. up to 600 A)<\/strong><\/p><\/div>\n\n\n\n

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Voltages L1 \/ L2 \/ L3<\/strong><\/p><\/div>\n\n\n\n

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Active power, reactive power, apparent power<\/strong><\/p><\/div>\n\n\n\n

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Power factor<\/strong><\/p><\/div>\n\n\n\n

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Temperature<\/strong><\/p><\/div>\n\n\n\n

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Grid status<\/strong><\/p><\/div>\n<\/div>\n\n\n\n

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This data is stored locally or transmitted to a monitoring system<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n

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Communication & data transmission<\/h2>\n<\/div>\n<\/div>\n\n\n\n
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LTE \/ mobile network \u2192for direct cloud connectivity<\/h3>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n
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LoRaWAN \u2192 <\/strong>ideal for large networks & municipal utilities<\/strong><\/h3>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n
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local interfaces \u2192integration into existing systems<\/h3>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n\n\n
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Depending on the application, various communication paths are available:<\/p>\n\n\n\n

This makes substation monitoring suitable for both individual systems and large grid structures.<\/p>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n

\"Stromnetz\"<\/span>
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Benefits of the Trafobox in operation<\/h2>\n\n\n\n
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For grid operators:<\/strong><\/p><\/div>\n<\/div>\n\n\n\n

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\u25a0 Transparency in the low-voltage grid\u25a0 Early detection of overloads\u25a0 Optimisation of grid utilisation<\/p>\n<\/div>\n\n\n\n

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For industry & commerce:<\/strong><\/p><\/div>\n<\/div>\n\n\n\n

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\u25a0 Control over energy flows\u25a0 Avoidance of downtime\u25a0 Load management possible<\/p>\n<\/div>\n\n\n\n

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For PV systems & energy systems:<\/strong><\/p><\/div>\n<\/div>\n\n\n\n

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\u25a0 Analysis of feed-in and load\u25a0 Basis for storage strategies\u25a0 Monitoring of grid impacts<\/p>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n

\"Technische<\/span>
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Retrofit existing substations<\/h2>\n\n\n\n
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A major advantage of modern Trafoboxes is their easy integration:<\/em><\/p>\n\n\n\n

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no interruption of operation required<\/strong>
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no complex wiring<\/strong>
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quick installation on site<\/strong>
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ideal for existing systems<\/strong>
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\"Technische<\/span>
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Safety & reliability<\/h3>\n\n\n\n
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Substation monitoring is designed for industrial use:<\/p>\n\n\n\n

\u25a0 robust enclosures (IP66\/IP67)\u25a0 temperature resistance\u25a0 reliable data transmission\u25a0 operation even in the event of a grid outage (buffering possible)<\/h3>\n<\/div>\n\n\n\n
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Integration into energy management systems<\/h3>\n\n\n\n
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The recorded data can be further processed by:<\/p>\n\n\n\n

\u25a0 grid control centres\u25a0 SCADA systems\u25a0 energy management platforms<\/h3>\n\n\n\n

This turns pure monitoring into an active control instrument.<\/p>\n<\/div>\n<\/div>\n\n\n\n

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\"Stromnetz\"<\/span>
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Conclusion \u2013 transparency for tomorrow\u2019s power grid<\/h2>\n\n\n\n
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Substation monitoring is no longer a \u201cnice-to-have\u201d, but a key building block of modern energy infrastructure.It enables:<\/p>\n\n\n\n

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secure grids<\/strong><\/p><\/div>\n\n\n\n

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better planning<\/strong><\/p><\/div>\n\n\n\n

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more efficient operation<\/strong><\/p><\/div>\n<\/div>\n<\/div>\n\n\n\n

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\"Substation\"\n\t\t\t\n\t\t\t\t\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n
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Learn more about the Q3 Trafobox product \u2192<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
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\"Technische<\/span>
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Project inquiry: substation monitoring<\/h2>\n\n\n\n
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Would you like to design a substation monitoring system for your specific project, record grid parameters, or select the right monitoring solution for your substation, low-voltage network or energy system?<\/strong>Using the enquiry form below, we capture all relevant project data in a structured and traceable manner.<\/p>\n<\/div>\n\n\n\n

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You are welcome to send grid plans, load profiles, measurement concepts or other technical documents directly with your enquiry. Based on this, we analyse your requirements, define suitable measurement points and communication paths, and configure the Trafobox optimally for your application. <\/em><\/p>\n<\/div>\n<\/div>\n\n\n\n

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Start project enquiry for substation monitoring \u2192<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n
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\"Anfrage\"<\/span>
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Trafobox project enquiry<\/h2>\n\n\n
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Project-specific design of Trafoboxes for recording grid and load data in substations and low-voltage networks.<\/p>\n\n\n\n

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Start Trafobox project enquiry \u2192<\/a><\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n
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\"PDF\"<\/span>
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Trafobox technical documents<\/h2>\n\n\n
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Datasheets, system overviews and technical documentation for substation monitoring and integration into existing systems.<\/p>\n\n\n\n

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Technical downloads AC box \u2192<\/a><\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n
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\"Niederspannungsnetz\"<\/span>
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Products Trafobox<\/h2>\n\n\n
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\"Low-voltage<\/figure>\n<\/div>\n\n\n

Overview of monitoring solutions for various applications in the low-voltage network and in energy systems.<\/p>\n\n\n\n

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Go to the Trafobox overview \u2192<\/a><\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

System structure of substation monitoring Substation monitoring records electrical parameters directly in the distribution system and transmits them to higher-level systems for analysis.<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":7465,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","neve_meta_reading_time":"","_themeisle_gutenberg_block_has_review":false,"footnotes":""},"class_list":["post-7491","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/pages\/7491","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/comments?post=7491"}],"version-history":[{"count":3,"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/pages\/7491\/revisions"}],"predecessor-version":[{"id":7498,"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/pages\/7491\/revisions\/7498"}],"up":[{"embeddable":true,"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/pages\/7465"}],"wp:attachment":[{"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/media?parent=7491"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}