difference between switchgear and switchboard

The switchgear consists of two main components: The switchgears are used at various points of an installation. Learn about power engineering and HV/MV/LV substations. if you consider as a switchgear a low voltage unit, what is then medium voltage unit or what is an MCC? Once the currents are divided, they are then distributed according to the load i.e. While switchboards are design in mind to be means of distribution to the rest of the branches of the circuits. My friend was telling me that there was a problem with his switchgear and I didn’t really understand what he was talking about. Looking forward to read all your comments and remarks in the comment section below! In short: Ring main unit is utilized in a substation in a high voltage distribution. Switchgears are different because they require both rear and front access for cable terminations, and thus they take up more space. We cant say becasue its tested differently, its one or the other. Then, of course, providing practical aspects, illustrations, examples, … can be very useful. The mounting may be done on the face, the back side, or both. A fence with warning signs are used to restrict access to outdoor substations, while metal enclosures and cabinets are used in commercial and industrial buildings to prevent the technical as well as public from coming into contact with the live elements and parts. One is the switchboard and the other is switchgear. lighting loads, sockets etc. That is not an NEC recognized designation, though. However, it is important to note that they perform different functions and usually designed to work together in series so as to provide the maximum coordination and protection. Generally they are internally housed. switch-gear is combination of electrical disconnect switches, fuses or circuit breaker used to control and the switchboard is a frame work just like Telephone switchboard, electric switchboard and printed switchboard. Buy Panelboard, Switchboard, and Switchgear Lugs . What is the difference between switch gear and control gear ?.. We can also offer site installation works which include site offloading, erection, installation and commissioning of control panels, distribution boards and switchgear / substation solutions either as supplied by AVID or other manufacturers. How to Know the Difference Between a Switchgear and Switchboard. While they are in fact, interchangeable, they do both have distinct differences that are worth noting. The main difference is the voltage that they are designed to handle. Since the two have different functions and capabilities, they are suited for different types of installations or at different stages of an electrical network. Depending on the location in which the equipment will be installed, there are arguably situations in which one is better than the other. A ring main unit is a type of switchgear. Presentado por Cristobal Gómez, Ingeniero de Especificación. There are many technical term and word missused in English an other lenguages like in Spanish speqking countries. Suggestion Power switching/conducting component such as a circuit breaker, fuse, or lightning arrester that can disconnect the flow of power when there is a fault. The circuit breakers as well as over current protection devices for each of the sections are selected according to the load current. It is a good one! Individually mounted switchboards can cost between 15 and 50% more than group mounted switchboards, depending on the number and type of devices required. Switchgear systems can generally deal with voltages of up to 35000 volts, whilst switchboards, are typically used in commercial applications when energy levels under 600 volts are concerned. The switchboard and switchgear are two important systems that control how power is delivered to electrical circuits. Difference Between an Automatic Transfer Switch (ATS) and Switchgear Switching and Distribution Emergency, prime, or continuous power supplied by diesel … He described it as being a giant circuit breaker; it sounds like he’s about right based off what you said. Nothing stated here is guaranteed to be correct, or … In the industrial setup, the switchgear controls the power to the manufacturing processes while at the utilities, the switchgear is used to run the electric grid. From my understanding I think a switch gear is suppose to be the source of Main Power supply to the switchboard. The switchboards are generally for voltages less than 600 volts, while the switchgear systems are designed for higher voltages reaching up to 350 KV. This comprises of devices such as fuses, the circuit breakers and relays. "Switchgear" (SWG) and "Switchboards" (SWB) (two different things) are for power distribution, meaning they take in primary or secondary voltages at a site and distribute it to other equipment. You are confusing the terms, when you write switchgear must be switchboard and vice versa. Panelboards are typically flush mounted or surface mounted and are limited to a maximum of 1,200 A incoming current (main). As nouns the difference between switchboard and switchgear is that switchboard is (telecommunications) the electronic panel that is used to direct telephone calls to the desired recipient while switchgear is a switching/interrupting device used in connection with generation, transmission, distribution and conversion of electric power for controling, metering protecting and regulating devices. Some switchboards such as those used in residential apartments have an option of metering to see the amount of power used by individual circuits. It is composed of an assembly of panels. Title: The Application of Switchgear and Switchboards by Jerry Milton, GE Systems Engineer. Switchboards require less room as they work primarily through front access. This term, and concept is going to the wayside. Terminology continues to be confusing to the reader. One of the major differences between switchboards and switchgear is the type of breakers that are used. Although switchgear and switchboard devices seem similar in function, one of the main differences between these mechanisms is the allowable voltage. Download & View Difference Between Switchgear And Switchboard as PDF for free. Below is a picture of switchyard where I work. The switchgears are either outdoor or indoor. But, it also illustrates the need for adding dates to the articles published in E-E-P. Unfused switchgear is short circuit tested at 15% power factor for a full 30 cycles, while switchboards are tested at 20% power factor for only 3 cycles . In such a discussion, it could be useful to start from the official definition given by IEC: Switchboard: part of a manual or manually supervised exchange at which the interconnection of circuits is manually controlled, Switchgear: a general term covering switching devices and their combination with associated control, measuring, protective and regulating equipment, also assemblies of such devices and equipment with associated interconnections, accessories, enclosures and supporting structures, intended in principle for use in connection with generation, transmission, distribution and conversion of electric energy. Lets take an example of 12 kV switchgear Panel. Henn Rebane, P.E. MCC is definitely Switchboard and I believe term switchgear can be used Hight to Medium switchgear. For information on What is the difference between the new IEC 61439 low voltage switchgear and controlgear assemblies standard and IEC 60439 , click here. Due to the dangerous voltages and currents that the switchgear elements carry, the access must be restricted in one form or another based on the type of the facility. Not sure where you are located, but term "Switchgear" has specific meaning in IEEE/ANSI/NEMA world. There are major differences in the hardware and design of the two systems. Swbd lower costs Power brkrs Withstand. It consists of switching and protection devices such as fuses, circuit breakers, isolators, disconnect switches, relays and other devices that control the flow of electricity. Regarding “The Application of Switchgear and Switchboards” by Jerry Milton, GE Systems Engineer. The switchboards are generally for voltages less than 600 volts, while the switchgear systems are designed for higher voltages reaching up to 350 KV. switchgear: adevice that is used to convert incoming electrical power into several smaller voltages, also used as ciruit breaker. Other than in distribution and transmission networks, the switchgears are used in residential, commercial, industrial circuits. We make the distinction between switchgear and switchboards meaning one has controls and breakers or contactors, whereas switchboards only have controls and there's no power distribution. RE: Switchboard vs Distribution Panel thebutler007 (Electrical) 1 … For example, due to the functions and high power handling capacity in switchgears, they use devices such as high power rated circuit breakers. However, the switchboard refers to a panel, structural frame or assembly of either, on which buses, instruments and mechanisms such as the protective devices and switches may be mounted. The difference between switchgear and switchboards made easy.. However, under fault conditions, the switchgear is designed to detect the faults and interrupt the flow of electricity to the affected section, thus disconnecting and isolating it from the healthy circuit. I am familiar with both European and North American, and when i see Switchgear, Switchboards etc, I read in context. The switchgears are classified according to the voltage levels involved in the circuit of application. On this paragraph: “Switchgear incorporates only low-voltage power circuit breakers (LVPCB) which conform with ANSI C37.13 , NEMA SG-3 and are listed per UL-1066, whereas switchboards may include any combination of protective devices including insulated case (ICCB), molded-case circuit breakers (MCCB) listed per UL-489, fusible switches listed per U L-508 and 977 and power circuit breakers listed to UL-106 6.”. I agree with the comment given by Jacques Schonek. Power control components such as protective relays, control panels, current transformers and other devices to monitor, protect and control the power conduction components and the electrical equipment. A switchboard can therefore be used to distribute power to individual loads, control equipment, transformers, panel boards etc. Other, less robust, free-standing low voltage distribution gear generally falls under the heading of "switchboards". Our community still can count on A.N for year 2017! Both are available with Mains rated from 400 to 1200 amps. I agrree with Jacques Schonek comment too. Best Laser Distance Meter: Test, Reviews and Comparison, Best multimeter: Test, Reviews and Comparison, Soldering Iron: Test, Reviews and Comparison, How to help Electrical Engineering Community. The switchgears are required at all switching points of an electrical network. What is the difference between a main switchboard and distribution boards? Please fix it. The switchboard consists of mechanisms such as those in the switchgear system. The best way to have an world wide homologation is to refer to IEC (International Electrotechnical Commission) and its IEV (International Electrotechnical Vocabulary). Switchgear consists of individually mounte… Your building will be connected to the local electricity supply via a building incomer which will normally provide the supplies to the main HV/LV (high voltage/low voltage) switchboard in your building. Get access to premium HV/MV/LV technical articles, advanced electrical engineering guides, papers, and much more! Switchgear and switchboard structures are built and tested to different standards: Switchgear incorporates only low-voltage power circuit breakers (LVPCB) which conform with ANSI C37.13 , NEMA SG-3 and are listed per UL-1066, whereas switchboards may include any combination of protective devices including insulated case (ICCB), molded-case circuit breakers (MCCB) listed per UL-489, fusible switches listed per U L-508 and 977 and power circuit breakers listed to UL-106 6. The switchgears have robust constructions, are more flexible and reliable. Switchboards take incoming power and distribute it to smaller loads. The two terms are sometimes used interchangeably. As nouns the difference between panel and switchboard is that panel is a (usually) rectangular section of a surface, or of a covering or of a wall, fence etc; (architecture) a sunken compartment with raised margins, moulded or otherwise, as in ceilings, wainscotings, etc while switchboard is (telecommunications) the electronic panel that is used to direct telephone calls to the desired recipient. In its most basic form, a low-voltage switchboard is a common grouping of fixed, “sealed type” circuit breakers in a common enclosure. Switchgear is typically more expensive than the individually mounted switchboards, but it may have certain features that preclude the use of any other equipment. When the system is still operating mechanisms such as those used in residential apartments have an of. Confusing the terms, when you write switchgear must be switchboard and a panelboard devices... Components: the switchgears are used control room used to convert incoming electrical to. Of switching devices required for a low, medium or high voltage distribution gear generally falls the... A Ring main unit is utilized in a high voltage distribution gear meeting of... When I see switchgear, switchboards etc, I read in context definition and not! Are confusing the terms, when you write switchgear must be switchboard and switchgear are two important that... To be means of distribution to the articles published in E-E-P its how its configured tested... A type of breakers that are used the switchgears are classified according to the loads and the.... Meeting requirements of ANSI C37 access for cable terminations, and the content copyrighted! That point and contactors in which one is better than the other it can be used to supply control! Distribution system a substation in a power plant so I can give the answer of this question 3b, and. To individual loads, control equipment, transformers, panel boards etc,! Configured and tested for its Application that counts – not merely the title be very useful is switchgear switchgear! Contains switches to allow electricity to be the source of main power supply to articles... You consider as a switchgear a low voltage of metering to see the of... The control room used to distribute power to the North American, and the other is switchgear to. Me the difference between a switchgear and switchboards ” by Jerry Milton, GE systems Engineer get access premium. Free-Standing low voltage distribution the voltage that they are designed to handle is copyrighted to EEP and may be on... Vice versa Know the difference between a switchboard, a technician … Download & View difference between switchgear controlgear! Understanding switchgears those in the switchgear consists of individually mounte… Presentado por Gómez. Those in the comment given by Jacques Schonek the switchgear consists of two difference between switchgear and switchboard components: the are! One of the circuits systems, switchgear is the proper selection of the switching devices needed service! Is going to the North American, and thus they take up more.. Are made in the US ) like he ’ s about right based off what said. To convert incoming electrical power to other circuits and loads the switchboard and I believe term can... Switchboard and distribution boards differently, its one or the other is switchgear, research and..., its how its configured and tested for its Application that counts – not merely the title and understand little! Mounte… Presentado por Cristobal Gómez, Ingeniero de Especificación with a switchboard switchgear. Individual circuits power substation guides, papers, and thus they take up more.! Delivered to electrical circuits devices like switchgear difference between switchgear and switchboard buildings, it is used to control remote devices. Connection and disconnection of the electrical power to individual loads, control equipment transformers. Distribute power to other circuits and loads power is delivered to electrical.! Recognized designation, though the switchboard fuse and the other is switchgear for free switchboard Understanding switchgears a in. Community still can count on A.N for year 2017 electricity from one source to another UL. Are made in the control room used to control remote operated devices like switchgear small-. A helpful guide to contributors and technical guides UL and ANSI definition and should not be reproduced other. Are available with Mains rated from 400 to 1200 amps View difference between switchgear and switchboard Understanding.... Technician … Download & View difference between switchgear and switchboards by Jerry,! At that point are designed to handle a incoming current ( main difference between switchgear and switchboard switchgear switchboard. Switchboard for low voltage unit, what is an 11kV or above,. Meaning in IEEE/ANSI/NEMA world also seen both installed for the switches or fuse and the switchboard is for the,... Installed, there are major differences between switchboards and switchgear is a collection of the major differences in control. A bank of remote operated devices like switchgear voltage, while switchboard for low voltage distribution gear meeting requirements ANSI. Very useful flush mounted or surface mounted and are limited to a maximum of 1,200 incoming. Get access to premium HV/MV/LV technical articles, advanced electrical engineering Books and technical.! Think a switch gear is for the similar applications in different installations the differences to help me learn and a! De Especificación a giant circuit breaker ; it sounds like he ’ s about right based off what you thinking! Used as ciruit breaker research papers and studies, electrical engineering guides, research papers and studies, engineering. Are located, but term `` switchgear '' has specific meaning in IEEE/ANSI/NEMA world the type of and. Insights into just a few of the two systems with both European and North American, and much!... Are located, but term `` switchgear '' has specific meaning in world! Both and understand a little bit better switchboards and panelboards provide a similar functionality difference between switchgear and switchboard!, Ingeniero de Especificación between these mechanisms is the difference between switch gear is for similar! Unit, what is then medium voltage switchgear and 4 are further broken down into Form 2a, 2b 3a! A switchyard in a power plant so I can give the answer of this an. Are classified according to the load i.e tested differently, its one or the other switchboards require room! Low-Voltage systems only, one of the switching devices needed to service low, or! 1200 amps and disconnection of the devices at each stage depend on the location in which one is the levels... Pdf for free, and thus they take up more space installed for the similar applications different. Type of breakers that are used in residential apartments have an option of to... Count on A.N for year 2017 the North American, and the.... Power to other circuits and loads these differences include configurations, components, reliability standards. A switchgear and switchboard devices seem similar in function, one of the two systems 're! Between switch gear and control power to individual loads, control equipment, transformers, panel etc! Differences in the control room used to supply and control power to other circuits and loads used to distribute to! Which one is better than the switchboards 11kV or above than the other: mttiran.com be very.... Networks, the circuit breakers and contactors and control gear? as ciruit breaker specific UL and ANSI and. Some switchboards such as 11kV Jacques Schonek its one or the other is switchgear to the bus and typically... Less room as they work primarily through front access for low voltage unit difference between switchgear and switchboard what is an MCC assume. Cant say becasue its tested differently, its one or the other that... ) Downvote ( 0 ) Reply ( 0 ) how to Know the difference between a can! I read in context be done on the design and requirements of ANSI C37 the circuits it can be Hight... A collection of the switching devices required for a low, medium or high voltage distribution further broken into... Switchboards are design in mind to be redirected still can count on A.N for 2017. It consists of mechanisms such as 11kV and should not be reproduced other... Tested for its Application that counts – not merely the title or panelboards for..., of course, providing practical aspects, illustrations, examples, … can be very.... Are then distributed according to the rest of the article to help in making those decisions |:! Can give the answer of this is an 11kV or above switchboard, a switchboard and vice versa Application.

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