Station class siliconehoused arresters xps 3 nameplate directmolded construction abbs type xps surge arrester consists of high performance metal oxide disks molded in a shatterproof polymer housing. The selection of the surge arrester depends on the application to be protected. Each piece of electrical equipment in an electrical system needs to be protected from voltage surges. Abb has more than 100 years of experience in designing and manufacturing surge arresters and protection devices. Design of lightning arresters for electrical power systems.
Lightning impulse withstand value must be 20 ka 820 ir x 1. The metal oxide disks are enclosed in a support as. Abbs polimhm surge arrester consists of high performance metal oxide disks. Available as singleunit arresters rated up to 300 kv or. They differ only in constructional details but operate on the same principle, providing low resistance path for the surges to the round. Mediumvoltage arresters for distribution networks surge.
Integrated ground lead disconnet for fast, reliable operation. The swe dish text and the interpretation thereof shall govern the contract and the legal rela tions between parties. Line surge arresters power factor correction seismic solutions. Pdv100 optima with disconnector, ground strap and transformer bracket. Siliconehoused surge arrester pexlim highvoltage surge. Complete foundation drawings for the structure of lightning arrestor, where applicable. The source of the lightning was represented by the atp models type15 surge function and type ramp function and the surge arrester was represented by the movtype 92 component. The function of the surge arrester is to allow the discharge of any dangerous overvoltage before it can do damage and then to restore. Surge and lightning arresters eaton offers a broad selection of cooper power series lowvoltage, distributionclass, riserpole, intermediateclass and stationclass surge arresters for overhead and underground applications. The overvoltage energy absorption capability of our zinc oxide surge arrester is as follows. Hi friends, in this article, i am going to discuss about lightning arrester types and lightning arrester working principle. They have set the standard for design and manufacturing of polymeric distributionclass arresters up to 36 kv. Application guide dynavar metaloxide surge arrester. Pvilp, evp, svn, svnh and svnx polymer arresters are designed and tested to meet or exceed the requirements of ieee c62.
Type dmxn surge arresters maximum system voltage 2 to. Cutaway illustration of a 10 kv ultrasil polymerhoused varistar class 4. High voltage surge arrester specification applications. Zno disc temperature shows that vs 42 245 kv mcov and vx 318485 kv mcov arresters would not normally operate under this condition, even with high ambient temperatures. For use when requirements of lightning intensity, energy capability and pollution are moderate. There are several types of lightning arresters in general use. Ultrasil polymerhoused varistar type u4 surge arrester. Lightning flashover rate of an overhead transmission line protected by surge arresters juan a. The purpose of a surge lighting arrester is to limit the over voltages that may occur across transformers and other electrical apparatus due either to lightning or switching surges. Station and intermediate class surge arresters ieee. I23583 varistar type azg3 surge arresters for systems.
Surge arrester insulating bases and counters for type azes, azg, ui, us, u2, u3, u4 s235811 25. Check insulator withstand capability of the housing use paragraph 8. Type dmxn surge arresters maximum system voltage 2 to 36 kv. Elastimold mov surge arresters provide high voltage lightning and switching surge protection of transformers, cable, equipment and other components typically located on underground power distribution systems. Abb surge arresters are the primary protection against atmospheric and switching over voltages. This paper presents an overview of how the lightning strikes and their e ects on power distribu. From distribution class to ehv arresters up to 612kv rating as well as high energy varistors for series capacitor applications. Polymer transmission line surge arrester protection with. Ultrasil polymerhoused varistar type u3 surge arrester. These have a higher energy absorption capacity and a better protection level. Metaloxide surge arresters for ac power circuits and line discharge class 1 requirements of iec 6000994 iec standard for metaloxide surge arresters without gaps for ac systems. A good quality supplier will fully disclose the relevant data in a format that is comprehensible and userfriendly. The xpiiii arrester is designed to meet the following performance data.
Product overview abb high voltage products surge arresters. The surge arrestors are being provided to protect the following equipment whose insulation. Siemens 3ek8 distribution class surge arresters are ideally. Lightning strikes near line and induces a voltage on it v max 38. Zforce arresters have moldon polymer housing for the ultimate seal against moisture ingress. This guide explains the power factor test procedure of these surge arresters. The specification stipulates the minimum requirements for 11kv and 33 kv surge arresters acceptable for use in the company and it shall be the responsibility of the supplier to ensure adequacy of the design, good workmanship and good engineering practice in the manufacture of the surge arresters for kenya power. The ge tranquell line of surge arrester products provide excellent protective. These guidelines are mainly based on the swedish standard ssen 600994.
Continued from article complete overview of lightning arresters part 2 types of lightning arresters for outdoor application. Discharge voltage table in every arrester datasheet, you will find a most important table about the discharge voltage of the arrester in question. Eaton s cooper power series arresters range from intermediate through stationclass arresters up to 396 kv. Line discharge class 3 electrical apparatus i23583 0711 supersedes 1101 figure 1.
High overvoltage energy absorption capability the zinc oxide arresters can absorb all kinds of energy of lightning and switching surge. Highvoltage surge arresters digital asset management. Voltage grading rings are included for arresters rated 172 kv and above. Mediumvoltage surge arresters digital asset management. The 3ej0 and 3ej9 surge arresters are optimized with an extremely low protection level for protection against overvoltages. Mwk is a surge arrester with metaloxide mo resistors without spark gaps directly molded in silicone housing, in grey color, designed and tested according to iec 600994. The lightning arresters are used to protect power system from high voltage surges. Zforce zhp arresters archives maclean power systems. Ultrasil polymerhoused varistar stationclass surge. Proper placement, voltage selection and coordination with riser pole arresters minimize damaging surge voltages by. Type polims surge arresters maximum system voltage. To prevent damage to electrical equipment, surge protection considerations are paramount to a welldesigned electrical.
Many factors like system voltages, basic impulse insulation level, arrestor rating, station layout. Ohio brass text notes dynavar arrester application a surge arrester is the most common example of a device used to protect highvoltage substation equipment from harmful. Insulation of arrester housing nominal lightning with stand voltage uliwl. Surge arresters for ac power circuits and line discharge class 3 requirements of iec 600994 iec standard for metaloxide surge arresters without gaps for ac systems. English pdf article energy stress on transmission line arresters considering the total lightning charge distribution english pdf article. Selfcontained surge arresters 12 420 kv introduction this english text is to be regarded as a translation of the swedish guideline. Capability against multiple lightning is greatly improved. Surge arresters are used to protect transmission lines, transformer or other equipments from transient voltage. Switching 500 kv 9 switchgear frequency converters blowing fuses triggered mcbs motor starters relays etc. Multiple documents found abb library could not identify a unique document based on the available parameters. The application and selection of lightning arresters. Intermediate and station class surge arresters ieee iec eaton.
A lightning arrester is essentially a collection of billions of microscopic junctions of metal oxide grains that turn on and off in microseconds to form a current path from the top terminal to the ground terminal of the arrester. Figure 3 shows at 200mile length the charge voltage can be as high as 3. Abb offers a complete range of surge arresters for high voltage applications comprising of solutions for ac and dc up to 1,100kv as well as special applications. Siemens 3ek8 mediumvoltage surge arresters are ideally suited for all purposes, especially for the reliable protection of transformers, circuit breakers, mediumvoltage switch. The surge arresters limit harmful overvoltages, which are generated in the network by lightning strikes or switching actions thus improving the availability of the power supply. The type zhp distribution class arresters provides heavy duty surge protection to overhead systems. The polims surge arrester is designed to meet the following performance data. Eatons cooper power series type u3 arresters meet or exceed. This table documents how well the arrester clamps lightning and switching surges, which is the fundamental purpose of arresters. Technical specification for gapless lightening arrester for 25 kv ac. Clamp the over voltage down below the bil of the equipment 3. Transmission line substation gis hvdc railroad, generator, motor, reactor, capacitor and svc protection ieeeiec lightning arresters ieeeiec lightning arresters. Polymeric surge arresters iec energy polmeric srge arresters iec maximum system voltage u m kv rated voltage u r kv continuous operating voltage u c kv max. I o is peak lightning current h a is average height of line y is the distance from line of lightning stroke most typical of lightning fashovers on a distribution line much less energy than a direct strike.
For this application, the mcov of the installed arrester must be equal or higher to the continuous voltage between the phase and earth. Lightning arrester or surge arrestors manufacturers in india. The hollow core type arrester is built with extrahigh, energyrated. Mwk mediumvoltage surge arresters surge arresters abb. Ge offers an extensive line of surge arrester products. The surge arresters fulfill special high requirements regarding ambient conditions, energy handling capability, protection level and stability in service. For use when requirements of lightning intensity, energy capability and pollution are heavy. Thermal energy rating, wth the maximum specified energy, given in kj kv of ur, that may be injected into an arrester or arrester. Type polimhm surge arresters maximum system voltage 2. Shreem as a company grown from capacitor manufacturing and turnkey jobs in project started no of divisions to fulfill its projects division. Polymeric housed metaloxide surge arresters without gaps norminal discharge current 10ka electrical. Lightning impulse classifying current single impulse withstand rating switching surge energy rating protective level maximum discharge voltage height h length of insulating bracket leakage distance rated shortcircuit current recommended minimum clearances static cantilever load dynamic cantilever load weight kv kv i n ka c kj kv mcov 45.
Designed and tested according to the latest iec 60099 4 2 3 medium voltage surge arresters msaiz series how to choose the right msaiz series minimally required computed rated. Understanding the arrester datasheet nema arresters. Gapless vn, vl and vi arresters have a temporary over voltage capability of 40 percent for more than one second, which. Protection of switchgear, transformers and other equipment in high voltage systems against atmospheric and switching overvoltages. Varistar storm trapper high energy arrester, underoildistributionclass surge arresters. Why do we make the rating of surge arrester kv always. Shielded surge arresters metal oxide varistor mov surge. Medium 20mm kv um heavy 25 mm kv um very heavy 31 mm kv um application classification. Instructions for type ivs autovalve lightning arresters for indoor or outdoor service with pressure relief i. High mechanical stability for support applications and for use in regions with high seismic activity. Type 3ej9 surge arresters should be used for power plants and extensive cable networks. The voltage was recorded at the substation 11022 kv and at. Ieeeiec lightning arrester arresters for ac and dc applications.
Catalog id asc catalog id desc date added asc date added desc representative image. Dehn protects mediumvoltage systems brochure ds 125. This article is a guide to understanding the arrester datasheet and what is behind it. Eatons cooper power series distribution arresters provide superior overvoltage protection for any electric distribution system. A surge arrester is a device to protect electrical equipment from overvoltage transients caused by external lightning or internal switching events. Lightning arrester should be located close to the equipment that it is expected to protect. The type 3ej0 is used in cable networks with up to 15 kv.
Our surge arresters protect devices in equipment for applications up to 1200 kv. The xps now has a new construction to enhance overall lifetime performance. The dmxn surge arrester is designed to meet the following performance data. The function of the surge arrester is to allow the discharge of any dangerous overvoltage before it can do damage and then to restore the line to. High strength fiberglass for high faultwithstand design. Ge tranquell arresters are designed and manufactured in accordance with the latest revision of ansi ieee c62. Mediumvoltage surge arresters surge arresters are used for protection of electrical equipment from all kind of overvoltages caused by lightening or switching operations. Lightning current arrester type 1 with integrated backup fuse surge arrester type 2 device protection type 3 lightning current arrester type 1.
Sf6insulated, metalenclosed surge arresters siemens provides gasinsulated, metalenclosed surge arresters for standard and special ac and dc applications from 72. When arresters are applied to protect systems from lightning or switching surges, they are installed between the phase and earth. Highvoltage station arresters surge arresters siemens. The station arresters are built to exacting specifications and tested to ieee or iec requirements for years of reliable service.
Following drawings and manualleaflet in one copy with each tender shall be. Tranquell polymer and porcelain arresters are designed to meet the most demanding service conditions. Also called a surge protection device spd or transient voltage surge suppressor tvss, this class of device is used to protect equipment in power transmission and distribution systems. Polymer housed moa for 110kv the polymer housed moa for 10kv porcelain housed moa for 220kv 35kv moa without gaps for middle phase 110kv moa without gaps for suspension tower 110kv moa with gap for deadend tower. Two copies of maintenance manual covering the following shall be supplied with. On three phase systems, the line to ground voltage is equal to the phase. Ur kv station class class 4 20,000 amp nominal discharge current, ur kv station class class 5 20,000 amp nominal discharge current, ur 360 kv station class. Instructions for type ivs autovalve service with pressure relief. Distribution arresters overvoltage protection eaton. We offer an extensive portfolio of highvoltage station arresters in several versions for every conceivable application and even specific demands.
Enhancements in arrester design allow eaton to offer increased cantilever strength and improved energy handling capability. The xps arrester is designed to meet the following performance data. Type xpiiii surge arresters maximum system voltage 2 to 48 kv. U4 surge arrester for systems through 275 kv iec 20 kva. Lightning flashover rate of an overhead transmission line. Need help understanding the fundamentals of surge arresters. In large substations, arrestors should be installed at takeoff points of the lines and of the terminal apparatus. A compact 420 kv line utilising line surge arresters for areas with low isokeraunic levels english pdf article design and testing of polymerhoused surge arresters. Development of 624kv 20ka class5 single column polymer surge arrester for 765kv800kv system voltage to meet specific requirement of pgcil requirement is developed indegenously type tested and supplied to pgcil proposed ss the las commissioned and monitored for its successful appear and performance at site. Part of selecting a good quality arrester is understanding the published data. Politecnica catalunya universidad del valle barcelona, spain cali, colombia ieee pes general meeting june 2327, 2007, tampa. Distribution class surge arresters siemens provides a wide range of surge arrester product families for the protection of mediumvoltage systems and components up to 72. Elastimold mov surge arresters provide high voltage lightning and switching surge protection of transformers, cable, equipment and other.
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