Design guide medium voltage switchgear basis of design this section applies to the design and selection of medium voltage switchgear, primarily for use in substations. Abb offers a wide range of medium voltage gas insulated switchgear gis for primary and secondary distribution. The epoxy coating shall be applied using a fluidized bed process controlled by a plc to insure consistent. Medium voltage switch gear for a sustainable industry. Separate systems for energy supply and the actual process. This paper covers general safe operations on medium voltage equipment and looks at the aspects. Efacec is certified according to the following references of quality, environment, health and safety. Simpler manual and electrical tripping only requires cancelling the permanent. Mediumvoltage switchgear type 8db extendable fixedmounted circuitbreaker switchgear up to 40. It is intended as a supplement to single line diagrams and. Switchgear solutions for primary and secondary distribution to suit every application. This means that all high voltage parts are housed in the encapsulated main circuit enclosure and are inaccessible from the outside. The interruption medium of this switchgear may be insulating oil, sf 6 gas or vacuum. Safety operations on medium voltage switchgear idconline.
Switchboards and switchgear table of contents section 11 switchboards and switchgear. With simatic pcs 7 powercontrol, you can integrate the automation of your switchgear into the process control system and thus merge otherwise separate worlds. Sf6 the insulating and arc quenching medium sf6 the insulating and arc quenching medium sulphurhexafluoride sf 6 gas has in recent years increasingly found its way also into mediumvoltage load switching systems, having been previously successfully used mainly in. Switchgear automation distributed control system simatic. Indoor panels outdoor kiosks panels are designed in accordance with abbs guidelines and as per iec is standards. Compact and modular switchgear combining all mv functional units. Electrical switchgear and safety bangor university. It is exclusively intended for use by the manufacturers staff or by persons certified for the gha series training certificate.
The companies featured in the following listing offer a comprehensive range of switchgear. The estimated volume of the low voltage switchgear industry including the modular switches used for domestic applications world be almost inr. Safety operations on medium voltage switchgear it is important when operating on medium voltage equipment that we follow the safety rules and operating regulations in order to be safe. Whether you choose ge medium voltage switchgear or ge low voltage switchgear, youll get the ultimate in electrical arc protection and durability.
High and medium voltage substation design, testing and maintenance training in london uk, dubai united arab emirates, kuala lumpur malaysia, istanbul turkey, france paris. Gasinsulated switchgear with vacuum circuitbreaker for primary distribution system configuration up to 36 kv. Shielding methods do not permit an arc to form between the conductor and ground. A b c blocks are divided in the following categories according to the connection type. Switchgear, generators and medium voltage equipment are the heart of any electrical power system.
The cable has no ul listing and is not recognized by the national electrical code nec. Eatons motor control centres offer the best method for. For technical and economic reasons, the service voltage of medium voltage distribution networks. Ges expertise in power distribution provides consumers with flexible and reliable switchgear that helps you get the most out of your devices and energy usage. Most sf 6 is used in circuit breakers, although it can also be used in related equipment such as switches, disconnectors, current. Circuit breakers 116 micrologic trip units 116 medium voltage switchgear minibreak compact height switches 5. All enclosures are finished using a stateoftheart powder coating system providing an indoor finish that exceeds the 1500 hour salt spray testing requirement for outdoor equipment to 3000 hours. Combining vacuum and solid encapsulation, this sf6free technology can be found in primary or secondary distribution applications up to 17. State of the art microprocessor based protective devices can be incorporated into the design to provide maximum system protection and communication. The available information has been assembled with the greatest possible care but switchgear company nv. Medium voltage technical guide electrical engineering portal. The cables primary use is for installation in medium. It is designed to provide increased electrical and mec hanical life. Various system components are flexibly combined with each other for this purpose.
The files shall be provided in both pdf and autocad format. For every customer demand, there is a kautz solution an individual switchgear solution. Aluminium joining piece with silver plated contact surfaces. A block is connected to output cables and to switchgear power bus by means of connectors.
The interior structure is divided into three mediumvoltage metalclad compartments. Substation equipment an overview sciencedirect topics. The work described in this manual may only be performed by specialist electricians with proven experience in conjunction with theghaseriestrainingcertificate. This paper covers general safe operations on medium. Medium voltage switchboards play a big role in the distribution of power and management of distribution systems. Technical specification metalclad switchgear this specification covers the basic design and functional requirements medium voltage metalclad switchgear with vacuum circuit breakers and optional arc resistance. The equipment covered includes switchgear using oil, air, sulphur hexa. Compact and robust cassette mounted cb of abb make with draw out feature with cubicle front door closed complies to latest standards of iec 62271200. Efacec has teams experienced in the development of medium and high voltage equipment with the use of advanced 3d software modeling and simulation of equipment operating under extreme conditions.
Gas insulated switchgear solutions for primary and secondary distribution to suit every application in medium voltage. Component and metering selections are based on value. The contents of this instruction manual shall not become part or modify any prior or existing agreement, commitment or relationship. The circuit breaker is a device that ensures the control and protection of a. The medium voltage switchgear ax1 is not just a medium voltage cubicle, but also a complete switchgear systeminstallation. For technical and economic reasons, the service voltage of medium voltage distribution networks rarely exceeds 36 kv. Medium voltage switchgear 22kv vcb panels vd4 vcb abb make key features. This document uses the term medium voltage switchgear to denote a random, but in actual practice, existing combination of dr6 functions that, mutually coupled and connected, constitute a clientspecific transformation or distribution station. A block is connected to switchgear power bus with connectors and to output cables with a. Cat medium voltage switchgear lives up to the promise of cat reliability in every way. Medium voltage switchgear easun reyrolle is a leader in the field of electrical power management and has more than 30 years of domain expertise in providing a wide spectrum of innovative power management solutions to customers across the globe.
They may metal enclosed indoor type switchgear, metal enclosed outdoor type switchgear, outdoor type switchgear without metal enclosure, etc. That same technological and design expertise has been leveraged to develop our highquality medium voltage switchgear. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. A good design and installation of switchgear and panelboards will assure reliable power for years of service, while a poor design or installation can mean downtime, loss of production, safety concerns and damaged electrical equipment.
Mediumvoltage switchgear type 8dh10 up to 24 kv, gasinsulated, extendable mediumvoltage switchgear installation and operating instructions order no 8186602. The type designation of the typetested, prefabricated panels contains information about their design, rated voltage, insulation level, panel width and panel height. Medium voltage switchgear and substation cable background southwires medium voltage switchgear and substation cable is a nonshielded, insulated, finely stranded cable that has no voltage rating. From 3 kv to 36 kv switchgear system is categorized as medium voltage switchgear or mv switchgear.
Hvlcc medium voltage, metalenclosed switchgear from schneider electric provides switching, metering, and interrupting capabilities for medium voltage, electrical power distribution systems. Allow for manual, motor, local or remote operation by using a control capable of. Eatons medium voltage switchgear provides centralized control and protection of mediumvoltage power equipment and circuits in industrial, commercial, and utility installations involving generators, motors, feeder circuits, and transmission and distribution lines. Eatons medium voltage switchgear is suitable for applications in ehouses, midstream and refinery applications. Medium voltage, as well as a variety of related products and services. Metal clad switchgear can be manufactured through 4,000a utilizing eaton, abb, ge, siemens, and toshiba circuit breakers. Mediumvoltage switchgear cat pdf catalogs technical. Busbar compartment circuitbreaker compartment c cable compartment control cabinet 1 earthing switch 2 current transformer 3 gland plate. Sector description the electricity industry makes use of equipment insulated with sf 6.
In manual mode, post fault, the system will recommend the switching steps required to. Their correct installation, operation and maintenance can save thousands of dollars, prevent equipment damage, and prevent accidents. Additions, expansions and conversions, as well as custom designs up to 36 kv, are part of the kautz range of solutions. Power systems and products, mitsubishi electric contributing to efficient and stable energy supplies. Fully rated bus is based on density ratings, not ul heat rise tests, resulting in more bus and lower operating temperatures. Overhead lines and substation equipment can be protected against direct strokes to a considerable extent by using earth or ground wires, which shield the equipment. Technical guide the mvlv transformer substations abb group. Rated voltage levels for metalclad switchgear range from 5 kv to 38 kv. We offer 10 kv to 36 kv airinsulated or sf 6insulated switchgear in various designs. Typically, switchgear in substations are located on both the high and lowvoltage sides of large power transformers.
The qbn7 is a medium voltage air insulated switchgear, constructed on a. Manufacturer of low and medium voltage switchgear and preengineered buildings ehouses learn more winding, repair, rewinds and modifications of power transformers. The switchgear on the lowvoltage side of the transformers may be located in a building, with mediumvoltage circuit breakers for distribution circuits, along. From a definition point of view ax1 is a primary encapsulated and air insulated switchgear. Siemens experience gained in over 80 years of supplying metalclad switchgear in the u. Manual installation commissioning environment and recycling. Mediumvoltage metalenclosed switchgear catalog eaton. The term medium voltage is commonly used for distribution systems with voltages above 1 kv and generally applied up to and including 52 kv1. Safety operations on medium voltage switchgear author and presenter. High and medium voltage substation design, testing and.
All medium voltage bus shall be insulated with epoxy. The simosec medium voltage metalenclosed switchgear is designed to meet all the applicable ansi, nema and ieee standards, or the applicable iec standards, as appropriate for the specific contract. There are nonshielding methods, such as use of lightning arresters and spark gaps. As a provider of total solutions, caterpillar has been a leading innovator in the technology and design of electric power products. Welcome to the premier industrial source for switchgear. The design standard for the equipment specified herein is vesta switchgear as manufactured by industrial electric mfg, fremont, california.
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