With highreliability products and solutions, we will continually contribute to realizing a sustainable society for a brighter future home. Medium voltage products technical guide the mvlv transformer substations passive users 1 2 1. Low and medium voltage circuit breakers are available from a wide variety of manufacturers like general electric ge, westinghouse, cutlerhammer, eaton, abb, bbc, ite, allischalmers. The medium voltage switchgear ax1 is not just a medium voltage cubicle, but also a complete switchgear systeminstallation. If the switchgear is tworow facetoface arranged, the dis tance between two rows should be not less than 2500mm the dimension of touring aisle depends on the.
Gas insulated switchgear high voltage gas insulated switchgear medium voltage. Medium voltage ratings to 38,000v and 1500mva at 5,000a. Capacitors and filters power quality circuit breakers low voltage circuit breakers medium voltage communication networks. Nfpa standard 70e provides additional specific guidance on procedures and the level of personal protective equipment required when inspecting substations. Bilateral extension of existing switchgear is straightforward. Applies to conformance test procedures for ac medium voltage switches rated above 1,000 v as designed, tested and. The ws is a systematically gasinsulated switchgear whose busbar systems are also consistently located in gasinsulated cladded compartments. Abb s medium voltage switchgear portfolio helps protect and control electrical equipment in commercial, industrial and utility applications worldwide. The switchgear on the lowvoltage side of the transformers may be located in a building, with mediumvoltage circuit breakers for distribution circuits, along with metering, control, and protection equipment. Develops and maintains proprietary standards for the switchgear section i.
For all customers, from system integrators to end users, and all applications, from refurbishment, line extension to new installations. Medium voltage products unisec technical guide abb group. Airinsulated mediumvoltage g, p switchgear nxair, up to 24 kv. The switchgear on the low voltage side of the transformers may be located in a building, with medium voltage circuit breakers for distribution circuits, along with metering, control, and protection equipment. Siemens gasinsulated switchgear is designed for high reliability and. Siemens experience gained in over 80 years of supplying metalclad switchgear in the u. Mcset is metalenclosed switchgear with rackout units designed for indoor installation. Medium voltage switchgear schneider electric global. Manual installation commissioning environment and recycling. Because of a rich variety on the switchgear market, abb introduced the zs1 to meet the specifications of each country market.
Indoor panels outdoor kiosks panels are designed in accordance with abbs guidelines and as per iec is standards. Medium voltage switchgear for primary distribution up to 24 kv suitable for indoor installations unigear zs1 is the abb mainline switchgear for primary distribution up to 24 kv, 4 000 a, 63 ka. Jul 11, 2016 eatons medium voltage switchgear is suitable for applications in ehouses, midstream and refinery applications. A detailed mounting and operation manual of the indoor air switchdisconnector nalnalfvr rated voltage 12, 17. Technical specification metalclad switchgear abb group. 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. Its high reliability and reduced maintenance mean less. Abb s ecoefficient airplus technology delivered to norwegian smart grid. Power xpert xgis gasinsulated medium voltage switchgear. C i r e d 21st international conference on electricity distribution frankfurt, 69 june 2011 paper 0260 paper no.
This paper covers general safe operations on medium voltage equipment and looks at the aspects. From a definition point of view ax1 is a primary encapsulated and air insulated switchgear. Since it is intended to be a workbook, only the data necessary to choose applicable switchgear is included. Medium voltage switchgear abb industrial solutions. A block is connected to switchgear power bus with connectors and to output cables with a. The development of solid insulated switchgear for medium. To download abb switchgear manual, please refer to the following link which forwards you to abb web site. Concept for sf6free transmission and distribution of electrical energy. In an electric power system, switchgear is composed of electrical disconnect switches, fuses or. Testing rigorous testing shows fully reinforced and sealed joints, hinges and latches, which reduce the risk of damage to maintenance personnel and other existing equipment in the event of an arc flash. 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. Air insulated switchgear high voltage air insulated switchgear medium voltage analytical measurement. Zx family medium voltage primary gasinsulated switchgear english pdf.
Ws switchgear units with rated voltages up to 36 kv rated currents up to 2,500 a. Manufacturers of mediumvoltage switchgear browse companies that make mediumvoltage switchgear and view and download their free cad details, revit bim files, specifications and other content relating to mediumvoltage switchgear as well as other product information formated for. A wide variety of medium voltage switchgear options are available to you, such as usage, coil structure, and phase. Safety operations on medium voltage switchgear idconline. Components for medium voltage switchgear schneider electric. Substations and switchgear inherently operate at high voltages. The contens of this instruction manual shall not become part of or modify any prior or existing agreement, commitment or relationship. This switchgear is a medium voltage switchgear for distribution. About 85% of these are power distribution equipment, 2% are circuit breakers. Circuitbreaker switchgear type nxair, nxair m and nxair p, up to 24 kv, airinsulated mediumvoltage switchgear catalog ha 25.
Distribution transformer feeder circuit breaker manual control from the mcr and the. Our mv switchgear can be used in a full range of primary or secondary distribution applications with ais, gis and 2sis technologies embedded with leading. For industrial applications, a transformer and switchgear lineup may be combined in one housing, called a unitized substation uss. At the same time, it constitutes a safe investment for the future due to its continuous further development. It is intended as a supplement to single line diagrams and data sheets for switchgear projects. To make a switchgear withdrawable parts need to be added. Mediumvoltage switchgear type 8da extendable fixedmounted circuitbreaker switchgear up to 40. V3t72 volume 3power distribution and control assemblies ca0804ejuly 2015. Medium voltage switchgear available from stock or service. 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. Nxairs withdrawable mediumvoltage circuitbreaker switchgear up to 12kv, airinsulated technical data 7 electrical data and dimensions note.
Recommended offering for mediumvoltage switchgear distribution. Medium voltage iec gas insulated primary switchgear gis zx2. National switchgear stocks a wide variety of molded case, power, air and vacuum circuit breakers, including new, used and reconditioned circuit breakers. Switchgear solutions for primary and secondary distribution to suit every application.
Thermal inspectors typically inspect transformers, regulators, switches, circuit break. Medium voltage insulating and support system with specialty designed structure for current transformers cts. Switchgear medium voltage switchgear national circuit. This means that all high voltage parts are housed in the encapsulated main circuit enclosure and are inaccessible from the outside. Gas insulated medium voltage switchgear ge industrial. Building fb, nuclear auxiliary building nab, access building acb, circulating. Arcproof low voltage switchgear and controlgear assemblies 3 1 generalities about lv switchgear and controlgear assemblies 1. The switchgear is manufactured worldwide and there are more than 400 000 panels currently installed.
Abb power distribution 1 zs1 airinsulated medium voltage switchgear, 12 kv17. The high flexibility of the mns system results from a framework construction with maintenancefree bolted connections which can be. The modular low voltage switchgear system has proven its worth for many years worldwide. Switchgear, generators and medium voltage equipment are the heart of any electrical power system. With a wide and complete portfolio of high and medium voltage products, efacec is recognized for its expertise in terms of flexible and custommade solutions and products, and the ability to understand the customers needs and offer appropriate solutions for each project. Switchgear medium voltage switchgear solutions for primary and secondary distribution to suit every application. Abb unveils abb ability digital switchgear for secondary distribution networks. This application guide provides information necessary to help plan and specify medium voltage power system switchgear, using powervac vacuum metalclad switchgear application procedure in an orderly, stepbystep manner. Low voltage switchgear powerzone 4 low voltage switchgear with masterpact circuit breakers 116 micrologic trip units 116 medium voltage switchgear minibreak compact height switches 5. Manufacturers of medium voltage switchgear browse companies that make medium voltage switchgear and view and download their free cad details, revit bim files, specifications and other content relating to medium voltage switchgear as well as other product information formated for the architectural community. Arc fault protection medium voltage azipod propulsion.
The earthing switch has shortcircuit making capacity. Secocue 36v gas insulated medium voltage switchgear secocube is an indoor, factoryassembled, metalenclosed, cubicle type gasinsulated switchgear for single busbar applications. A block is connected to output cables and to switchgear power bus by means of connectors. Highvoltage switchgear was invented at the end of the 19th century for operating motors and other electric machines. The development of solid insulated switchgear for medium voltage. Illustrated with around 80 high quality photos and drawings. 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.
Design control and protection for medium voltage switchgear. 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. Control of the earthing switch is from the front of the switchgear with manual operation, and optionally, can. American national standard for switchgearindoor ac medium.
The mvconnex range is ideal for use in ring main units, circuitbreaker switchgear, highvoltage motors, transformers, capacitors, transducers and sealing. Consequently removing parts and simplifying the system will improve the availability. Abb ability digital switchgear solution ensures reliable power in helsinkis smart city district. Energy storage modules medium voltage enterprise software. Materials on medium voltage switchgear of distribution lines, proceedings ciced 2010. Nxairs withdrawable mediumvoltage circuitbreaker switchgear. The modular lowvoltage switchgear system has proven its worth for many years worldwide.
Gepowell powervac 5kv medium voltage outdoor switchgear, nonwalkin, double ended maintiemain configuration, 50ka, 6sections, 2 each 1200 amp main breakers, 1 each 1200 amp tie breaker, 6 each 1200a feeder breakers, 4 each pt drawers, all breakers are type vb 4. Circuitbreaker switchgear type nxair, nxair m and nxair p. A withdrawable medium voltage switchgear consists of, all the parts that are used in a fixed switchgear. Mcset is designed for the mv section of hv mv substations and highpower mv mv substations mcset4 catalogue available. Mv gas insulated switchgear for primary distribution suitable for indoor. Guide to osha and nfpa 70e safety requirements when servicing and maintaining medium voltage switchgear, circuit breakers, and medium voltage controllers rated above v.
Description mva standard narrow design mva arc resistant. American national standard for switchgearindoor ac medium voltage switches for use in metalenclosed switchgearconformance test procedures. Airinsulated mediumvoltage switchgear nxair, up to 24 kv siemens ha 25. Abb delivers state of the art technologies to italys most innovative data center. Additional parts are needed to make connection and disconnection, possible. Section 16271, medium voltage drytype transformers i. The company made a wide range of electrical products from low voltage lv 230v to v to medium voltage mv v to 33kv and right through to the.
Iec air insulated switchgear unigear zs1 abb group. Eatons medium voltage switchgear is suitable for applications in ehouses, midstream and refinery applications. A b c blocks are divided in the following categories according to the connection type. Circuitbreaker switchgear type nxair, nxair m and nxair.