{"id":25807,"date":"2025-11-27T15:43:45","date_gmt":"2025-11-27T14:43:45","guid":{"rendered":"https:\/\/actiaenergy.com\/uncategorized\/electrical-energy-glossary\/"},"modified":"2026-01-22T07:50:24","modified_gmt":"2026-01-22T06:50:24","slug":"electrical-energy-glossary","status":"publish","type":"post","link":"https:\/\/actiaenergy.com\/en\/other\/electrical-energy-glossary\/","title":{"rendered":"Electrical Energy Glossary"},"content":{"rendered":"<h2>Electrical Energy Glossary: a clear guide to quickly understand the main technical terms, concepts, and equipment in the electrical industry.<\/h2>\n<h3>Digital Control System (CCN)<\/h3>\n<p>CCN refers to <strong>computerized systems<\/strong> used to control, monitor, and automate a substation.<\/p>\n<ul>\n<li>Data acquisition (sensors, measurements)<\/li>\n<li>Information processing<\/li>\n<li>Sending commands to circuit breakers, disconnectors<\/li>\n<li>Real-time process monitoring<\/li>\n<\/ul>\n<p><strong>Composition:<\/strong> industrial computer systems, IEC61850 network, HMI, bay connections, CCN software, IEC104 communication protocol compatible with SCADA<br \/>\n<strong>Summary:<\/strong> CCN is the <strong>\u201ccomputer brain\u201d<\/strong> that automatically controls and monitors substations.<\/p>\n<div class=\"alert alert-dark\">\n<p><img loading=\"lazy\" decoding=\"async\" width=\"233\" height=\"200\" src=\"https:\/\/actiaenergy.com\/wp-content\/uploads\/illustration-actualite-right-w700h600\" data-src=\"https:\/\/actiaenergy.com\/wp-content\/uploads\/illustration-actualite-right-w700h600\" class=\"alignright wp-image-10909 hidden-phone\" alt=\"ACTIA Energy, Discover Our Solutions\"><\/p>\n<h3 class=\"alert-heading\"><i class=\"fa-solid fa-circle-info\"><\/i>Discover!<\/h3>\n<hr>\n<p><i class=\"fa-solid fa-caret-right\"><\/i>Discover our <a href=\"https:\/\/actiaenergy.com\/en\/categories-solutions\/numerical-relay-rtu\/\" target=\"_blank\" rel=\"noopener\">Digital Control System<\/a> Solutions and find the solution tailored to your needs.<\/p>\n<\/div>\n<h3>EMS (Energy Management System)<\/h3>\n<p>An EMS is an <strong>Energy Management System<\/strong> that allows for: <\/p>\n<ul>\n<li>Measure and collect energy consumption (electricity, gas, water\u2026)<\/li>\n<li>Analyze energy performance<\/li>\n<li>Optimize energy use to reduce costs and improve efficiency<\/li>\n<li>Control certain equipment to adjust consumption<\/li>\n<li>Monitor energy objectives and standards (e.g., ISO 50001)<\/li>\n<\/ul>\n<p><strong>Summary:<\/strong> It is a platform to <strong>monitor, analyze, and optimize the energy consumption<\/strong> of a site or facility.<\/p>\n<div class=\"alert alert-dark\">\n<p><img loading=\"lazy\" decoding=\"async\" width=\"233\" height=\"200\" src=\"https:\/\/actiaenergy.com\/wp-content\/uploads\/illustration-actualite-right-w700h600\" data-src=\"https:\/\/actiaenergy.com\/wp-content\/uploads\/illustration-actualite-right-w700h600\" class=\"alignright wp-image-10909 hidden-phone\" alt=\"ACTIA Energy, Discover Our Solutions\"><\/p>\n<h3 class=\"alert-heading\"><i class=\"fa-solid fa-circle-info\"><\/i>Discover!<\/h3>\n<hr>\n<p><i class=\"fa-solid fa-caret-right\"><\/i>Discover our <a href=\"https:\/\/actiaenergy.com\/en\/solutions\/scada-ems-mistral\/\" target=\"_blank\" rel=\"noopener\">SCADA EMS<\/a> Solutions and find the solution tailored to your needs.<\/p>\n<\/div>\n<h3>IEC 60870-5-104 (IEC 104)<\/h3>\n<p><strong>IEC 104<\/strong> is an international standard that defines a communication protocol for the <strong>remote control and supervision of electrical systems<\/strong> via IP networks. It is part of the IEC 60870-5 family, used for electrical substations and SCADA systems. <\/p>\n<h4>Simple Definition<\/h4>\n<p>IEC 104 is a protocol that allows for:<\/p>\n<ul>\n<li><strong>Transmit<\/strong> measurement information and device statuses from an electrical substation to a control center (SCADA)<\/li>\n<li><strong>Remotely control<\/strong> electrical equipment (opening\/closing of circuit breakers, relay commands\u2026)<\/li>\n<li><strong>Supervise<\/strong> the real-time operation of electrical installations<\/li>\n<li><strong>Ensure<\/strong> reliable communication over TCP\/IP networks<\/li>\n<\/ul>\n<h4>Main Features<\/h4>\n<ul>\n<li>Based on TCP\/IP for data transmission<\/li>\n<li>Supports remote control, remote signaling, remote measurements, and supervision functions<\/li>\n<li>Compatible with modern SCADA systems<\/li>\n<li>Mainly used in MV\/HV electrical substations<\/li>\n<\/ul>\n<h4>Where is IEC 104 found?<\/h4>\n<ul>\n<li>MV\/LV substations<\/li>\n<li>SCADA control centers<\/li>\n<li>Industrial installations requiring remote control<\/li>\n<\/ul>\n<h4>What is it used for?<\/h4>\n<ul>\n<li>Ensure remote control and supervision of electrical equipment<\/li>\n<li>Enable integration into a smart grid<\/li>\n<li>Guarantee reliable and secure communication between substations and the control center (dispatching)<\/li>\n<\/ul>\n<p><strong>In summary:<\/strong><br \/>\nIEC 104 is a standardized communication protocol enabling the <strong>control, supervision, and remote management of electrical equipment<\/strong> over IP networks, essential in modern SCADA systems.<\/p>\n<div class=\"alert alert-dark\">\n<p><img loading=\"lazy\" decoding=\"async\" width=\"233\" height=\"200\" src=\"https:\/\/actiaenergy.com\/wp-content\/uploads\/illustration-actualite-right-w700h600\" data-src=\"https:\/\/actiaenergy.com\/wp-content\/uploads\/illustration-actualite-right-w700h600\" class=\"alignright wp-image-10909 hidden-phone\" alt=\"ACTIA Energy, Discover Our Solutions\"><\/p>\n<h3 class=\"alert-heading\"><i class=\"fa-solid fa-circle-info\"><\/i>Discover!<\/h3>\n<hr>\n<p><i class=\"fa-solid fa-caret-right\"><\/i>Discover our <a href=\"\/solutions\/\" target=\"_blank\" rel=\"noopener\">IEC 60870-5-104 compatible<\/a> Solutions and find the solution tailored to your needs.<\/p>\n<\/div>\n<h3>IEC 61850<\/h3>\n<p><strong>IEC 61850<\/strong> is an international standard that defines the <strong>communication and automation of electrical substations<\/strong>. It aims to standardize information exchange between equipment in modern substations. <\/p>\n<h4>Simple Definition<\/h4>\n<p>IEC 61850 is a protocol that allows for:<\/p>\n<ul>\n<li><strong>Supervise<\/strong> and control electrical equipment (circuit breakers, transformers, protection relays)<\/li>\n<li><strong>Exchange<\/strong> real-time data between devices via Ethernet networks<\/li>\n<li><strong>Standardize<\/strong> data objects and services for interoperability<\/li>\n<li><strong>Facilitate<\/strong> system integration in a SCADA and smart grid environment<\/li>\n<\/ul>\n<h4>Main Features<\/h4>\n<ul>\n<li>Use of Ethernet for network communication<\/li>\n<li>Definition of standardized data objects for each device type<\/li>\n<li>Interoperability between equipment from different manufacturers<\/li>\n<li>Support for real-time protection, control, measurement, and monitoring<\/li>\n<\/ul>\n<h4>Where is IEC 61850 found?<\/h4>\n<ul>\n<li>MV\/HV electrical substations<\/li>\n<li>Smart grid projects and electrical network automation<\/li>\n<\/ul>\n<h4>What is it used for?<\/h4>\n<ul>\n<li>Improve <strong>interoperability<\/strong> between equipment from different suppliers<\/li>\n<li>Ensure <strong>real-time supervision and protection<\/strong><\/li>\n<li>Enable <strong>substation automation<\/strong> and smart grids<\/li>\n<li>Reduce engineering costs and facilitate maintenance<\/li>\n<\/ul>\n<p><strong>In summary:<\/strong><br \/>\nIEC 61850 is an essential standard for the <strong>automation and standardized communication of electrical substations<\/strong>, enabling real-time supervision, protection, and control in modern networks.<\/p>\n<div class=\"alert alert-dark\">\n<p><img loading=\"lazy\" decoding=\"async\" width=\"233\" height=\"200\" src=\"https:\/\/actiaenergy.com\/wp-content\/uploads\/illustration-actualite-right-w700h600\" data-src=\"https:\/\/actiaenergy.com\/wp-content\/uploads\/illustration-actualite-right-w700h600\" class=\"alignright wp-image-10909 hidden-phone\" alt=\"ACTIA Energy, Discover Our Solutions\"><\/p>\n<h3 class=\"alert-heading\"><i class=\"fa-solid fa-circle-info\"><\/i>Discover!<\/h3>\n<hr>\n<p><i class=\"fa-solid fa-caret-right\"><\/i>Discover our <a href=\"https:\/\/actiaenergy.com\/en\/categories-solutions\/numerical-relay-rtu\/\" target=\"_blank\" rel=\"noopener\">IEC 61850 compatible<\/a> Solutions and find the solution tailored to your needs.<\/p>\n<\/div>\n<h3>OMT (Remote Control Operating Device)<\/h3>\n<p>An <strong>OMT cabinet<\/strong> stands for <strong>Remote Control Operating Device<\/strong>.<br \/>\nIt is an <strong>electrical equipment used in MV<\/strong> to enable the <strong>control, protection, and communication<\/strong> of a substation or switchgear, often in distribution networks.<\/p>\n<h4>Simple Definition<\/h4>\n<p>An OMT cabinet is a <strong>remote control cabinet<\/strong> grouping all necessary devices to: <\/p>\n<ul>\n<li><strong>Operate<\/strong> an MV switch or circuit breaker (opening\/closing)<\/li>\n<li><strong>Supervise<\/strong> statuses (position, voltage presence\u2026)<\/li>\n<li><strong>Transmit<\/strong> this information to a remote control system (SCADA)<\/li>\n<li><strong>Ensure the safety<\/strong> and selectivity of operations<\/li>\n<\/ul>\n<h4>Typical contents of an OMT cabinet<\/h4>\n<ul>\n<li><strong>Operating control chain<\/strong> (motor, relays, converters)<\/li>\n<li><strong>Low voltage protection devices<\/strong><\/li>\n<li><strong>Signaling and status feedback modules<\/strong><\/li>\n<li><strong>Backup power supply<\/strong> (battery, charger)<\/li>\n<li><strong>RTU or remote control module<\/strong> depending on the installations<\/li>\n<\/ul>\n<h4>Where is an OMT cabinet found?<\/h4>\n<ul>\n<li>MV\/LV distribution substations<\/li>\n<li>Switching cabinets in public networks<\/li>\n<li>Underground or overhead structures requiring remote control<\/li>\n<\/ul>\n<h4>What is it used for?<\/h4>\n<ul>\n<li>Enable <strong>local and remote control<\/strong> of MV switchgear<\/li>\n<li>Facilitate <strong>remote control<\/strong> in a smart grid<\/li>\n<li>Improve <strong>service continuity<\/strong> by enabling rapid operations<\/li>\n<li>Ensure the <strong>safety<\/strong> of operators and installations<\/li>\n<\/ul>\n<p><strong>Summary:<\/strong> The <strong>OMT cabinet<\/strong> is equipment dedicated to the <strong>operation, supervision, and remote control<\/strong> of MV switchgear, essential in modern electrical networks.<\/p>\n<div class=\"alert alert-dark\">\n<p><img loading=\"lazy\" decoding=\"async\" width=\"233\" height=\"200\" src=\"https:\/\/actiaenergy.com\/wp-content\/uploads\/illustration-actualite-right-w700h600\" data-src=\"https:\/\/actiaenergy.com\/wp-content\/uploads\/illustration-actualite-right-w700h600\" class=\"alignright wp-image-10909 hidden-phone\" alt=\"ACTIA Energy, Discover Our Solutions\"><\/p>\n<h3 class=\"alert-heading\"><i class=\"fa-solid fa-circle-info\"><\/i>Discover!<\/h3>\n<hr>\n<p><i class=\"fa-solid fa-caret-right\"><\/i>Discover our <a href=\"https:\/\/actiaenergy.com\/en\/solutions\/post-smart-unit-enclosure\/\" target=\"_blank\" rel=\"noopener\">MV\/LV Network Monitoring<\/a> Solutions and find the solution tailored to your needs.<\/p>\n<\/div>\n<h3>MV Protection (Medium Voltage level A)<\/h3>\n<p>MV protection refers to all devices designed to <strong>protect electrical networks and equipment operating between 1 kV and 50 kV<\/strong>.<br \/>\n<strong>Role:<\/strong><\/p>\n<ul>\n<li>Detect faults (short-circuit, overload, insulation fault\u2026)<\/li>\n<li>Quickly isolate the faulty area<\/li>\n<li>Ensure the safety of personnel and assets<\/li>\n<li>Guarantee service continuity<\/li>\n<\/ul>\n<p><strong>Typical equipment:<\/strong> circuit breakers, protection relays, disconnectors, surge arresters, current\/voltage transformers<br \/>\n<strong>Summary:<\/strong> Ensures the <strong>rapid detection and elimination of faults<\/strong> to guarantee the safety and quality of the electrical supply.<\/p>\n<div class=\"alert alert-dark\">\n<p><img loading=\"lazy\" decoding=\"async\" width=\"233\" height=\"200\" src=\"https:\/\/actiaenergy.com\/wp-content\/uploads\/illustration-actualite-right-w700h600\" data-src=\"https:\/\/actiaenergy.com\/wp-content\/uploads\/illustration-actualite-right-w700h600\" class=\"alignright wp-image-10909 hidden-phone\" alt=\"ACTIA Energy, Discover Our Solutions\"><\/p>\n<h3 class=\"alert-heading\"><i class=\"fa-solid fa-circle-info\"><\/i>Discover!<\/h3>\n<hr>\n<p><i class=\"fa-solid fa-caret-right\"><\/i>Discover our <a href=\"https:\/\/actiaenergy.com\/en\/solutions\/digital-relays-hv\/\" target=\"_blank\" rel=\"noopener\">Modular Digital Protection<\/a> Solutions and find the solution tailored to your needs.<\/p>\n<\/div>\n<h3>RTU (Remote Terminal Unit)<\/h3>\n<p>An RTU is an <strong>industrial electronic equipment<\/strong> used to: <\/p>\n<ul>\n<li>Acquire data<\/li>\n<li>Monitor installations<\/li>\n<li>Remotely control equipment<\/li>\n<\/ul>\n<p><strong>Main functions:<\/strong><\/p>\n<ul>\n<li>Read information from substation bays<\/li>\n<li>Transmit this data to a SCADA<\/li>\n<li>Receive and execute commands<\/li>\n<li>Ensure local monitoring<\/li>\n<\/ul>\n<p><strong>Summary:<\/strong> An RTU is a <strong>key device in SCADA systems<\/strong>, enabling the <strong>remote control and monitoring<\/strong> of field equipment.<\/p>\n<div class=\"alert alert-dark\">\n<p><img loading=\"lazy\" decoding=\"async\" width=\"233\" height=\"200\" src=\"https:\/\/actiaenergy.com\/wp-content\/uploads\/illustration-actualite-right-w700h600\" data-src=\"https:\/\/actiaenergy.com\/wp-content\/uploads\/illustration-actualite-right-w700h600\" class=\"alignright wp-image-10909 hidden-phone\" alt=\"ACTIA Energy, Discover Our Solutions\"><\/p>\n<h3 class=\"alert-heading\"><i class=\"fa-solid fa-circle-info\"><\/i>Discover!<\/h3>\n<hr>\n<p><i class=\"fa-solid fa-caret-right\"><\/i>Discover our <a href=\"https:\/\/actiaenergy.com\/en\/categories-solutions\/numerical-relay-rtu\/\" target=\"_blank\" rel=\"noopener\">RTU Remote Terminal Unit<\/a> Solutions and find the solution tailored to your needs.<\/p>\n<\/div>\n<h3>SCADA (Supervisory Control And Data Acquisition)<\/h3>\n<p>A SCADA is an <strong>industrial computer system<\/strong> that allows for: <\/p>\n<ul>\n<li>Supervise technical installations (factories, energy, transport&#8230;)<\/li>\n<li>Acquire and centralize real-time data from substations<\/li>\n<li>Remotely control substations<\/li>\n<li>Analyze and archive data for monitoring, optimization, and maintenance<\/li>\n<\/ul>\n<p><strong>Summary:<\/strong> It is a <strong>centralized control station<\/strong> offering a global and controllable view of a complex industrial process.<\/p>\n<div class=\"alert alert-dark\">\n<p><img loading=\"lazy\" decoding=\"async\" width=\"233\" height=\"200\" src=\"https:\/\/actiaenergy.com\/wp-content\/uploads\/illustration-actualite-right-w700h600\" data-src=\"https:\/\/actiaenergy.com\/wp-content\/uploads\/illustration-actualite-right-w700h600\" class=\"alignright wp-image-10909 hidden-phone\" alt=\"ACTIA Energy, Discover Our Solutions\"><\/p>\n<h3 class=\"alert-heading\"><i class=\"fa-solid fa-circle-info\"><\/i>Discover!<\/h3>\n<hr>\n<p><i class=\"fa-solid fa-caret-right\"><\/i>Discover our <a href=\"https:\/\/actiaenergy.com\/en\/categories-solutions\/scada\/\" target=\"_blank\" rel=\"noopener\">Remote Control &amp; SCADA<\/a> Solutions and find the solution tailored to your needs.<\/p>\n<\/div>\n<h3>Auxiliary Unit Panel (AU)<\/h3>\n<p>An <strong>auxiliary unit panel<\/strong> (often called <strong>AU<\/strong>) is an <strong>electrical panel dedicated to the power supply and management of auxiliary circuits<\/strong> of a substation, an MV\/HV installation.   <\/p>\n<h4>Simple Definition<\/h4>\n<p>The auxiliary unit panel groups all necessary equipment to provide <strong>auxiliary power supply(ies)<\/strong> essential for the operation of: <\/p>\n<ul>\n<li>the <strong>protections<\/strong><\/li>\n<li>the <strong>PLCs \/ RTUs<\/strong><\/li>\n<li>the <strong>switchgear operations<\/strong><\/li>\n<li>the <strong>remote control \/ telecommunication<\/strong><\/li>\n<li>the <strong>lighting<\/strong><\/li>\n<li>and certain <strong>general services<\/strong><\/li>\n<\/ul>\n<p>It is the <strong>low voltage nerve center<\/strong> of the electrical substation.<\/p>\n<h4>What does an auxiliary unit panel contain?<\/h4>\n<p>It may include:<\/p>\n<h4>1. Power Supply<\/h4>\n<ul>\n<li><strong>AC<\/strong> power supply (230\/400 V)<\/li>\n<li><strong>DC<\/strong> backup power supply (48 V, 110 V, 220 V depending on substations)<\/li>\n<li>Charger + stationary batteries<\/li>\n<\/ul>\n<h4>2. Protection and Distribution<\/h4>\n<ul>\n<li>LV circuit breakers and fuses<\/li>\n<li>Inverters (UPS)<\/li>\n<li>Busbars \/ terminal blocks<\/li>\n<\/ul>\n<h4>3. Control Equipment<\/h4>\n<ul>\n<li>Power supply for <strong>protection relays<\/strong><\/li>\n<li>Power supply for <strong>MV\/HV operating motors<\/strong><\/li>\n<li>Control circuits<\/li>\n<li>Reclosers, interface modules\u2026<\/li>\n<\/ul>\n<h4>4. Auxiliary Services<\/h4>\n<ul>\n<li>Safety lighting<\/li>\n<li>Substation ventilation \/ heating<\/li>\n<li>Service outlets<\/li>\n<li>Fire detection, pumps, etc.<\/li>\n<\/ul>\n<h4>Where is an auxiliary unit panel found?<\/h4>\n<ul>\n<li>MV\/HV electrical substations<\/li>\n<li>MV\/LV transformer substations<\/li>\n<\/ul>\n<h4>What is an auxiliary unit panel used for?<\/h4>\n<ul>\n<li>Ensure a <strong>reliable and secure power supply<\/strong> for critical substation equipment<\/li>\n<li>Guarantee <strong>operational continuity<\/strong> even in the event of a network outage<\/li>\n<li>Centralize and protect all <strong>auxiliary circuits<\/strong><\/li>\n<li>Maintain <strong>control, operation, and protection<\/strong> functions<\/li>\n<\/ul>\n<p><strong>In summary:<\/strong><br \/>\nAn <strong>auxiliary unit panel<\/strong> is the low voltage panel that <strong>powers, protects, and distributes<\/strong> all <strong>essential auxiliary power<\/strong> for the operation of an electrical substation or industrial installation.<\/p>\n<div class=\"alert alert-dark\">\n<p><img loading=\"lazy\" decoding=\"async\" width=\"233\" height=\"200\" src=\"https:\/\/actiaenergy.com\/wp-content\/uploads\/illustration-actualite-right-w700h600\" data-src=\"https:\/\/actiaenergy.com\/wp-content\/uploads\/illustration-actualite-right-w700h600\" class=\"alignright wp-image-10909 hidden-phone\" alt=\"ACTIA Energy, Discover Our Solutions\"><\/p>\n<h3 class=\"alert-heading\"><i class=\"fa-solid fa-circle-info\"><\/i>Discover!<\/h3>\n<hr>\n<p><i class=\"fa-solid fa-caret-right\"><\/i>Discover our <a href=\"https:\/\/actiaenergy.com\/en\/categories-solutions\/auxiliary-lv-distribution-panel\/\" target=\"_blank\" rel=\"noopener\">Low Voltage AU Distribution<\/a> Solutions and find the solution tailored to your needs.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Electrical Energy Glossary: a clear guide to quickly understand the main technical terms, concepts, and equipment in the electrical industry. Digital Control System (CCN) CCN refers to computerized systems used to control, monitor, and automate a substation. Data acquisition (sensors, measurements) Information processing Sending commands to circuit breakers, disconnectors Real-time process monitoring Composition: industrial computer systems, IEC61850 network, HMI, bay connections, CCN software, IEC104 communication protocol compatible with SCADA Summary: CCN is the \u201ccomputer brain\u201d that automatically controls and monitors substations. Discover! Discover our Digital Control System Solutions and find the solution tailored to your needs. EMS (Energy Management System) An EMS is an Energy Management System that allows for: Measure and collect energy consumption (electricity, gas, water\u2026) Analyze energy performance Optimize energy use to reduce costs and improve efficiency Control certain equipment to adjust consumption Monitor energy objectives and standards (e.g., ISO 50001) Summary: It is a platform to monitor, analyze, and optimize the energy consumption of a site or facility. Discover! Discover our SCADA EMS Solutions and find the solution tailored to your needs. IEC 60870-5-104 (IEC 104) IEC 104 is an international standard that defines a communication protocol for the remote control and supervision of electrical systems via IP networks. It is part of the IEC 60870-5 family, used for electrical substations and SCADA systems. Simple Definition IEC 104 is a protocol that allows for: Transmit measurement information and device statuses from an electrical substation to a control center (SCADA) Remotely control electrical equipment (opening\/closing of circuit breakers, relay commands\u2026) Supervise the real-time operation of electrical installations Ensure reliable communication over TCP\/IP networks Main Features Based on TCP\/IP for data transmission Supports remote control, remote signaling, remote measurements, and supervision functions Compatible with modern SCADA systems Mainly used in MV\/HV electrical substations Where is IEC 104 found? MV\/LV substations SCADA control centers Industrial installations requiring remote control What is it used for? Ensure remote control and supervision of electrical equipment Enable integration into a smart grid Guarantee reliable and secure communication between substations and the control center (dispatching) In summary: IEC 104 is a standardized communication protocol enabling the control, supervision, and remote management of electrical equipment over IP networks, essential in modern SCADA systems. Discover! Discover our IEC 60870-5-104 compatible Solutions and find the solution tailored to your needs. IEC 61850 IEC 61850 is an international standard that defines the communication and automation of electrical substations. It aims to standardize information exchange between equipment in modern substations. Simple Definition IEC 61850 is a protocol that allows for: Supervise and control electrical equipment (circuit breakers, transformers, protection relays) Exchange real-time data between devices via Ethernet networks Standardize data objects and services for interoperability Facilitate system integration in a SCADA and smart grid environment Main Features Use of Ethernet for network communication Definition of standardized data objects for each device type Interoperability between equipment from different manufacturers Support for real-time protection, control, measurement, and monitoring Where is IEC 61850 found? MV\/HV electrical substations Smart grid projects and electrical network automation What is it used for? Improve interoperability between equipment from different suppliers Ensure real-time supervision and protection Enable substation automation and smart grids Reduce engineering costs and facilitate maintenance In summary: IEC 61850 is an essential standard for the automation and standardized communication of electrical substations, enabling real-time supervision, protection, and control in modern networks. Discover! Discover our IEC 61850 compatible Solutions and find the solution tailored to your needs. OMT (Remote Control Operating Device) An OMT cabinet stands for Remote Control Operating Device. It is an electrical equipment used in MV to enable the control, protection, and communication of a substation or switchgear, often in distribution networks. Simple Definition An OMT cabinet is a remote control cabinet grouping all necessary devices to: Operate an MV switch or circuit breaker (opening\/closing) Supervise statuses (position, voltage presence\u2026) Transmit this information to a remote control system (SCADA) Ensure the safety and selectivity of operations Typical contents of an OMT cabinet Operating control chain (motor, relays, converters) Low voltage protection devices Signaling and status feedback modules Backup power supply (battery, charger) RTU or remote control module depending on the installations Where is an OMT cabinet found? MV\/LV distribution substations Switching cabinets in public networks Underground or overhead structures requiring remote control What is it used for? Enable local and remote control of MV switchgear Facilitate remote control in a smart grid Improve service continuity by enabling rapid operations Ensure the safety of operators and installations Summary: The OMT cabinet is equipment dedicated to the operation, supervision, and remote control of MV switchgear, essential in modern electrical networks. Discover! Discover our MV\/LV Network Monitoring Solutions and find the solution tailored to your needs. MV Protection (Medium Voltage level A) MV protection refers to all devices designed to protect electrical networks and equipment operating between 1 kV and 50 kV. Role: Detect faults (short-circuit, overload, insulation fault\u2026) Quickly isolate the faulty area Ensure the safety of personnel and assets Guarantee service continuity Typical equipment: circuit breakers, protection relays, disconnectors, surge arresters, current\/voltage transformers Summary: Ensures the rapid detection and elimination of faults to guarantee the safety and quality of the electrical supply. Discover! Discover our Modular Digital Protection Solutions and find the solution tailored to your needs. RTU (Remote Terminal Unit) An RTU is an industrial electronic equipment used to: Acquire data Monitor installations Remotely control equipment Main functions: Read information from substation bays Transmit this data to a SCADA Receive and execute commands Ensure local monitoring Summary: An RTU is a key device in SCADA systems, enabling the remote control and monitoring of field equipment. Discover! Discover our RTU Remote Terminal Unit Solutions and find the solution tailored to your needs. 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