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. Abb surge arresters are the primary protection against atmospheric and switching over voltages. There are several types of lightning arresters in general use. High overvoltage energy absorption capability the zinc oxide arresters can absorb all kinds of energy of lightning and switching surge. Polymer transmission line surge arrester protection with.
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. U3 surge arrester for systems through 275 kv iec 10 kva. The selection of the surge arrester depends on the application to be protected. This paper presents an overview of how the lightning strikes and their e ects on power distribu. Continued from article complete overview of lightning arresters part 2 types of lightning arresters for outdoor application. Many factors like system voltages, basic impulse insulation level, arrestor rating, station layout. Highvoltage surge arresters digital asset management. Type dmxn surge arresters maximum system voltage 2 to. 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. Lightning flashover rate of an overhead transmission line. The lightning arresters are used to protect power system from high voltage surges. Instructions for type ivs autovalve lightning arresters for indoor or outdoor service with pressure relief i. 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.
Distribution arresters overvoltage protection eaton. High mechanical stability for support applications and for use in regions with high seismic activity. For use when requirements of lightning intensity, energy capability and pollution are moderate. The type zhp distribution class arresters provides heavy duty surge protection to overhead systems. The ge tranquell line of surge arrester products provide excellent protective. For this application, the mcov of the installed arrester must be equal or higher to the continuous voltage between the phase and earth. Discharge voltage table in every arrester datasheet, you will find a most important table about the discharge voltage of the arrester in question. Product overview abb high voltage products surge arresters. A good quality supplier will fully disclose the relevant data in a format that is comprehensible and userfriendly. Two copies of maintenance manual covering the following shall be supplied with. The xpiiii arrester is designed to meet the following performance data. Application guide dynavar metaloxide surge arrester. They differ only in constructional details but operate on the same principle, providing low resistance path for the surges to the round.
Mediumvoltage surge arresters surge arresters are used for protection of electrical equipment from all kind of overvoltages caused by lightening or switching operations. Multiple documents found abb library could not identify a unique document based on the available parameters. English pdf article energy stress on transmission line arresters considering the total lightning charge distribution english pdf article. Lightning arrester should be located close to the equipment that it is expected to protect. Surge arresters are used to protect transmission lines, transformer or other equipments from transient voltage.
Ieeeiec lightning arrester arresters for ac and dc applications. Proper placement, voltage selection and coordination with riser pole arresters minimize damaging surge voltages by. The 3ej0 and 3ej9 surge arresters are optimized with an extremely low protection level for protection against overvoltages. Ge tranquell arresters are designed and manufactured in accordance with the latest revision of ansi ieee c62. Zforce zhp arresters archives maclean power systems. Eatons cooper power series type u3 arresters meet or exceed. Check insulator withstand capability of the housing use paragraph 8. Lightning flashover rate of an overhead transmission line protected by surge arresters juan a. 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.
Shielded surge arresters metal oxide varistor mov surge. 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. Ge offers an extensive line of surge arrester products. Technical specification for gapless lightening arrester for 25 kv ac conventional. Catalog id asc catalog id desc date added asc date added desc representative image. Thermal energy rating, wth the maximum specified energy, given in kj kv of ur, that may be injected into an arrester or arrester. The surge arrestors are being provided to protect the following equipment whose insulation. The function of the surge arrester is to allow the discharge of any dangerous overvoltage before it can do damage and then to restore. Complete foundation drawings for the structure of lightning arrestor, where applicable. When arresters are applied to protect systems from lightning or switching surges, they are installed between the phase and earth. From distribution class to ehv arresters up to 612kv rating as well as high energy varistors for series capacitor applications. Ultrasil polymerhoused varistar type u4 surge arrester. Design of lightning arresters for electrical power systems. Surge arrester insulating bases and counters for type azes, azg, ui, us, u2, u3, u4 s235811 25.
Elastimold mov surge arresters provide high voltage lightning and switching surge protection of transformers, cable, equipment and other. Type 3ej9 surge arresters should be used for power plants and extensive cable networks. The xps arrester is designed to meet the following performance data. Highvoltage station arresters surge arresters siemens. Our surge arresters protect devices in equipment for applications up to 1200 kv. Sf6insulated, metalenclosed surge arresters siemens provides gasinsulated, metalenclosed surge arresters for standard and special ac and dc applications from 72. The swe dish text and the interpretation thereof shall govern the contract and the legal rela tions between parties. 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. This guide explains the power factor test procedure of these surge arresters.
The type 3ej0 is used in cable networks with up to 15 kv. Type polims surge arresters maximum system voltage. High strength fiberglass for high faultwithstand design. 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. Lightning current arrester type 1 with integrated backup fuse surge arrester type 2 device protection type 3 lightning current arrester type 1. Following drawings and manualleaflet in one copy with each tender shall be. 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. The dmxn surge arrester is designed to meet the following performance data. Mediumvoltage arresters for distribution networks surge. The xps now has a new construction to enhance overall lifetime performance. 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. Switching 500 kv 9 switchgear frequency converters blowing fuses triggered mcbs motor starters relays etc. A surge arrester is a device to protect electrical equipment from overvoltage transients caused by external lightning or internal switching events. 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.
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. I23583 varistar type azg3 surge arresters for systems. 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. 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. Politecnica catalunya universidad del valle barcelona, spain cali, colombia ieee pes general meeting june 2327, 2007, tampa. We offer an extensive portfolio of highvoltage station arresters in several versions for every conceivable application and even specific demands. The metal oxide disks are enclosed in a support as. Enhancements in arrester design allow eaton to offer increased cantilever strength and improved energy handling capability. The surge arresters fulfill special high requirements regarding ambient conditions, energy handling capability, protection level and stability in service. Dehn protects mediumvoltage systems brochure ds 125. This table documents how well the arrester clamps lightning and switching surges, which is the fundamental purpose of arresters. Type polimhm surge arresters maximum system voltage 2. On three phase systems, the line to ground voltage is equal to the phase. Instructions for type ivs autovalve service with pressure relief.
For use when requirements of lightning intensity, energy capability and pollution are heavy. Abb has more than 100 years of experience in designing and manufacturing surge arresters and protection devices. The voltage was recorded at the substation 11022 kv and at. Siemens 3ek8 distribution class surge arresters are ideally. These have a higher energy absorption capacity and a better protection level. The overvoltage energy absorption capability of our zinc oxide surge arrester is as follows. Zforce arresters have moldon polymer housing for the ultimate seal against moisture ingress. Shreem as a company grown from capacitor manufacturing and turnkey jobs in project started no of divisions to fulfill its projects division. This article is a guide to understanding the arrester datasheet and what is behind it. Lightning arrester or surge arrestors manufacturers in india. Ultrasil polymerhoused varistar stationclass surge. Ultrasil polymerhoused varistar type u3 surge arrester. Transmission line substation gis hvdc railroad, generator, motor, reactor, capacitor and svc protection ieeeiec lightning arresters ieeeiec lightning arresters.
The polims surge arrester is designed to meet the following performance data. 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. To prevent damage to electrical equipment, surge protection considerations are paramount to a welldesigned electrical. Abbs polimhm surge arrester consists of high performance metal oxide disks. Clamp the over voltage down below the bil of the equipment 3. 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.
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. Lightning strikes near line and induces a voltage on it v max 38. Intermediate and station class surge arresters ieee iec eaton. Line surge arresters power factor correction seismic solutions. Station and intermediate class surge arresters ieee. Hi friends, in this article, i am going to discuss about lightning arrester types and lightning arrester working principle. 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. Technical specification for gapless lightening arrester for 25 kv ac. Insulation of arrester housing nominal lightning with stand voltage uliwl. Figure 3 shows at 200mile length the charge voltage can be as high as 3. 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.
Capability against multiple lightning is greatly improved. 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. Selfcontained surge arresters 12 420 kv introduction this english text is to be regarded as a translation of the swedish guideline. High voltage surge arrester specification applications. Pdv100 optima with disconnector, ground strap and transformer bracket. Available as singleunit arresters rated up to 300 kv or. Need help understanding the fundamentals of 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. Siemens 3ek8 mediumvoltage surge arresters are ideally suited for all purposes, especially for the reliable protection of transformers, circuit breakers, mediumvoltage switch. Why do we make the rating of surge arrester kv always. Eaton s cooper power series arresters range from intermediate through stationclass arresters up to 396 kv. Mediumvoltage surge arresters digital asset management.
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. Mwk mediumvoltage surge arresters surge arresters abb. Type xpiiii surge arresters maximum system voltage 2 to 48 kv. The hollow core type arrester is built with extrahigh, energyrated. The application and selection of lightning arresters.
These guidelines are mainly based on the swedish standard ssen 600994. Protection of switchgear, transformers and other equipment in high voltage systems against atmospheric and switching overvoltages. They have set the standard for design and manufacturing of polymeric distributionclass arresters up to 36 kv. Each piece of electrical equipment in an electrical system needs to be protected from voltage surges.
Tranquell polymer and porcelain arresters are designed to meet the most demanding service conditions. Eatons cooper power series distribution arresters provide superior overvoltage protection for any electric distribution system. Gapless vn, vl and vi arresters have a temporary over voltage capability of 40 percent for more than one second, which. Lightning impulse withstand value must be 20 ka 820 ir x 1. Line discharge class 3 electrical apparatus i23583 0711 supersedes 1101 figure 1.
Understanding the arrester datasheet nema arresters. 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. Voltage grading rings are included for arresters rated 172 kv and above. 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. 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. Polymeric housed metaloxide surge arresters without gaps norminal discharge current 10ka electrical. Siliconehoused surge arrester pexlim highvoltage surge. Medium 20mm kv um heavy 25 mm kv um very heavy 31 mm kv um application classification. Type dmxn surge arresters maximum system voltage 2 to 36 kv. Cutaway illustration of a 10 kv ultrasil polymerhoused varistar class 4. Varistar storm trapper high energy arrester, underoildistributionclass surge arresters. Pvilp, evp, svn, svnh and svnx polymer arresters are designed and tested to meet or exceed the requirements of ieee c62. The station arresters are built to exacting specifications and tested to ieee or iec requirements for years of reliable service.
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