It applies to gapless metaloxide surge arresters as defined in iec 600994, to surge arresters containing both series and parallel gapped structure u rated 52 kv and less as defined in iec 600996 and metaloxide surge arresters with external series gap for overhead transmission and distribution lines egla as defined in iec 600998. Application and analysis for surge arrester on lightning protection of distribution network. Product overview abb high voltage products surge arresters. Pdf metaloxide surge arrester model for fast transient simulations. Metal oxide surge arresters mosa are proven to be reliable protective devices for power distribution and electrical transmission system. Leakage current analysis of polymer and porcelain housed. Easily accessible rear plug with capacitive test point. The arrester which uses zinc oxide semiconductor as a resistor material, such type of arrester is known as a metal oxide surge arrester or zno diverter.
This paper to design modelling of metal oxide surge arresters mosa in 22kv distribution system by atpemtp program and compares the experimental testing of surge arrester product. A surge arrester is used to protect the equipment of transmission and distribution systems from the effects of lightning and switching overvoltage. Brass as a premier manufacturer of arrester products. Also considered in this document are assessment methods carried out when the arrester is off line or in the lab. Type a 250 a interface as described by cenelec en 50180 and 50181. Two important indicators were obtained to evaluate the behavior of the surge arrester in humid conditions. Zinc oxide gapless arresters, assembled by stacking zno blocks and placing same in insulating housings. December 2012 ieee standard for metaloxide surge arresters for ac power circuits 1 kv. Std97296, stdrl97296, stdpd97296, stdpdrl97296, stdpl97296 document history. This arrester provides protection against all types of ac and dc over voltages. Application and analysis for surge arrester on lightning protection of distribution network article pdf available in matec web of conferences 3410. Hazards from failures sharply reduced despite the high duty rating of this arrester. Study of the electric filed around a metal oxide surge. Metal oxide surge arrester has been in service since 1976.
Basic construction each pdv, pvilp and pvr arrester is made up of a series of varistor blocks that are manufactured by ohio brass in our two stateoftheart plants located in ohio and south carolina. Study of the electric filed around a metal oxide surge arrester. Overvoltage surge protection technical note, europe and apac. Guidelines for selection see vde 06755 or iec 600995 design type tested according to iec 600994 active part reinforced with frp rods. Electrical apparatus varigap gapped surge arrester metal. Pdf evaluation of surge degradation of metal oxide surge. Application guidelines overvoltage protection metaloxide. The combination of screened connector and surge arrester exceeds cenelec hd 629. Surge arresters varigap metal oxide varistor elbow m. With dynavar metaloxide arresters, this application is simplified due to the high nonlinearity of the blocks. This is especially true for surge arresters, which are generally installed on the train roof, immediately adjacent to the pantograph, as they must protect all downstream electrical equipment against incoming overvoltages. The surge arrester block implements a highly nonlinear resistor used to protect power equipment against overvoltages. Fft amplitude, humidity, leakage current, metal oxide surge arrester. Overvoltage protection metaloxide surge arresters in.
Evaluation of surge degradation of metal oxide surge arrester article pdf available in ieee transactions on power apparatus and systems per24. The metal oxide varistors used in the arresters provide high energy absorption and low residual voltages. Fundamentals covers the functioning, construction and the layout of the metal oxide surge arresters. The metal oxide varistor blocks are manufactured by ourselves using our own formulas and processes. Comparison of metal oxide surge arrester models in. Mar 12, 2020 where, i r and v r are the reference current and voltage respectively of the lightning arrester or surge arrester block. Medium voltage surge arrester was used to study operating voltage fluctuation, voltage third harmonic, overvoltage and aging effects. Energy division lv and mv metaloxide surge arresters. For consumer equipment protection, different products. This is the first part of a twopart handbook on highvoltage metal oxide surge arresters.
Equipment mounted on the outside of such rolling stock must be designed to withstand faster airflow. Now it is necessary only to select a lowside arrester with discharge voltage four percent higher than the arrester on the high side, with both high and lowside arrester discharge voltage. Da1 metal oxide surge arresters class 1 439 kv 3 da1 series product accessories 6 ocp series open cage polymeric surge arresters uc 7 ocp1 open cage polymeric surge arresters class 1 329 kv 8 ocp2 open cage polymeric surge arresters class 2 341 kv 10 ocp series product accessories 14 clx surge arresters for covered conductors 1236. The major shortcoming in these studies is the probable aggravated degradation or failure process of these surge protection devices as a result of voltage and current harmonics in the power system. Since introducing the worlds first metal oxide arrester in 1976, offering new concepts in. Metal oxide surge arrester should be highly reliable in most application because the. Zno electronic high voltage lightning protector 60 444kv large flow capacity. Shop for platt electric supplysurge arrester from platt electric supply. Todays technology for surge arresters intended for use in mediumvoltage systems is the gapless metaloxide surge arrester mo surge arrester with a synthetic housing. Ieee guide for the application of metaloxide surge arresters. Metal oxide surge arrester on sales quality metal oxide.
Ge offers an extensive line of surge arrester products. With dynavar metal oxide arresters, this application is simplified due to the high nonlinearity of the blocks. Lightning arresters for alternating current systems, part 3. Zno gapless lightning arrester or surge arrester electrical4u. Condition assessment of metal oxide surge arrester based on 355 performed using matlab, atpemtp and maxwell computing software. Spds are usually a combination of metal oxide varistors movs, gas discharge tubes gdt andor zener diodes, and current limiting devices that act to shunt charge to ground and to divert it from entering the protected system in. The mosa metal oxide surge arrestor comprising zno nonlinear elements has been taking the place of the conventional gapped arresters on a. Surge arrester sa is used for protection of lightning and switching surge in distribution system of provincial electricity authority.
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. As one of the worlds leaders in mov formulation, and their use in a gapless construction design, all classes of ge arresters offer the same quality mov. The latter, on the other hand, proves to have particularly good selfcleaning proper. Leakage current measurement method under voltage system 812, temperature measurement 14 and electromagnetic field measurement 1516 are online methods that are used for metal oxide surge arrester monitoring. Ohio brass has many years of experience and proven ability in manufacturing these metal oxide. The gap is generally a single air gap in series with the arrester the fundamental difference between this arrester. Protection of switchgear, transformers and other equipment. Lastly, the surge arresters models were introduced in the study for analysis. Ieee guide for the application of metaloxide surge. Therefore, this brochure concentrates only on mo surge arresters without gaps with silicone housing, as developed and pro duced by abb in switzerland. The protection voltage obtained with a single column is specified at a reference current usually 500 a or 1 ka.
The arrester mcov is shown in group 2 of table 1 and given in kv 1 kv volts. Lightning surge arrester manufacturer quality metal oxide. Metal oxide surge arrester with composite polymer insulator type series sbki to iv6. Where, i r and v r are the reference current and voltage respectively of the lightning arrester or surge arrester block. Current starts to flow through arrester before the over voltage reaches the peak.
Selection of metal oxide surge arresters design optional accessories operating conditions protection of transformers, switchgears and plants against atmospheric and switching overvoltages the selection of the rated and the continuous operating voltage of the arresters is depending on the neutral performance of the networks. Condition assessment of metal oxide surge arrester based on. Extremely nonlinear characteristics and so do not require any spark gaps. Metal oxide surge arrester should be highly reliable in most application because the metal oxide surge arresters are less likely to fail. Pdf the aim of this study is to propose simple and reliable techniques to assess the condition of metal oxide arrester based on the dielectric. Design of lightning arresters for electrical power systems. Among these diagnostics, recently, rv measurement rvm seems to be an increasingly popular method as it has high sensitivity to the condition of varistors and low sensitivity to disturbances in vicinity of the field measurements. Selection of metal oxide zno surge arresters the selection of the rated and the continuous operating voltage of the arresters depends on the neutral point treatment of the network.
Overvoltage surge protection technical note, europe and apac revision history version 2. Condition monitoring of metal oxide surge arresters at power. The active part is a metal oxide arrester which meets the requirements of iec 600994 for separable and deadfront arresters. In artificial pollution tests in salt fog in accordance with the standard iec 60507, it generally performs better than the comparable normal shed pro file. Distribution metal oxide surge arrester transnet nz. Types of surge arresters surge arresters used for protection of exterior electrical distribution lines will be either of the metaloxide surge arrester mosa, with resistors made of zincoxide zno blocks, or gapped type with resistors made of siliconcarbide sic. Application of metal oxide surge arresters for alternatingcurrent systems ieee power engineering society sponsored by the surge protective devices committee cj u a 3 published b y the institute of electrical and electronics engineers, inc. Smc metal oxide surge arrestors provides surge protection for dc distribution systems in transit, industrial and mining applications. For applications requiring high power dissipation, several columns of metal oxide discs are connected in parallel inside the same porcelain housing. They protect major electrical equipment from damage by limiting overvoltage and dissipating the associated energy ikmo et al. Measurement and simulation christodoulou c a, spanias c a, kontargyri v t, gonos i f, stathopulos i a high voltage laboratory, school of electrical and computer engineering, national technical university of athens iroon polytechneiou 9, 15780, zografou campus, athens, greece. This part offers a quick overview without going into great detail. Gapped surge arrester electrical apparatus 23555 december 2003 supersedes 1092 1 figure 1.
Metal oxide zno surge arrester with polymer cagedesign type series sbkc 6 to 396smii previously sbkc xxx10. Application of metaloxide surge arresters for alternatingcurrent systems ieee power engineering society sponsored by the surgeprotective devices committee cj u a 3 published b y the institute of electrical and electronics engineers, inc. Application guide dynavar metaloxide surge arrester. All arrester cores are encapsulated in silicone insulating housing. Elbow surge arrester, 200a, 25kv, class posibreak 12kv, duty cycle 10. Arrester construction metal oxide disks the core operating component of a modern lightning arrester is the metal oxide varistor mov element. In 1975, we delivered metal oxide gapless surge arresters mosas to a high voltage substa tion for a power utility. Metaloxide surge arresters in highvoltage power systems.
In the present work, two commerciallysourced sets of moa are tested and. Metal oxide surge arresters modelling in temporary. The mor has roughly the same characteristics as a standard mov arrester. Metaloxide varistor mov type arresters have two voltage ratings. Application guidelines overvoltage protection metal oxide surge arresters in medium voltage systems english pdf catalogue type polimhm surge arresters english pdf catalogue high voltage surge arresters buyer. The value of x is 30 to 40 in case of metal oxide block. For normal system, the voltage and current increase. This is the first part of a twopart handbook on highvoltage metaloxide surge arresters. Metal oxide zno surge arrester metalloxidableiter zno.
Metal oxide zno surge arrester type series sb 6 to 396sma0 previously sb xxx10. The arrester has certain advantages like it eliminate the sparkovers and also the risk of shock to the system. A wide variety of metal oxide arrester options are available to you, there are 581 suppliers who sells metal oxide arrester on, mainly located in asia. They are very reliable devices that are able to offer decades of service without causing any. It is mainly used for overvoltage protection at all voltage levels in a power system. The xps arrester is designed to meet the following performance data. Lightning surge arrester manufacturer quality metal. Multiple high current lightning and long duration switching surges are absorbed without noticeable changes in the arrester characteristics. Insulating epdm layer moulded between the insert and the. Those sections which have been simplified for the sake of clarity, will contain. Pdf metaloxide surge arresters have dynamic characteristics that are significant for overvoltage coordination studies involving fast front surges find, read. Pdf application and analysis for surge arrester on. Condition assessment of metal oxide surge arrester based. A surge arrester is a device to protect electrical equipment from overvoltage transients caused by external lightning or internal switching events.
Fundamentals covers the functioning, construction and the layout of the metaloxide surge arresters. Surge arrester combines metal zinc oxide varistor technology in a pre molded rubber elbow to provide overvoltage system protection in an insulated, fully shielded, sub mers ible, deadfront device. The unit should be mounted as close as possible to the device it is protecting. Our varisiltm he is of polymer housed gapless metal oxide type dedicated to overvoltage protection of distribution networks. Types of surge arresters surge arresters used for protection of exterior electrical distribution lines will be either of the metal oxide surge arrester mosa, with resistors made of zinc oxide zno blocks, or gapped type with resistors made of siliconcarbide sic. Figure 1 surge counter mounted on an arrester pedestal definitions arrester condition monitoring.
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