Metaloxide surge arresters in highvoltage power systems. Determine the appropriate maximum continuous operating voltage mcov for your system voltage using the arrester application table below. B3 edition 4, 200310 abb surge arresters buyers guide abb surge arresters buyers guide edition 4, 200310 c1 selection of arrester simplified selection procedure for a detailed selection guide, please refer to abb publications pthvpa 2300e and pthvpa 2310e. Other considerations protective level the protective level measures the voltage the surge arrester clamps the. The surge current the spd can handle for 15 strikes, 820 s current. A surge arrester works by diverting the extra voltage into the earth wire, rather than flowing through the electronic. The highperformance ar surge arrester absorbs the potential of an inductive lightning surge caused by a lightning discharge to protect electronic instruments. Standards and testing reliability you can count on.
In the left hand column of the selection table you will. Prd1 surge arresters are fitted with easytoreplace withdrawable cartridges. Mediumvoltage surge arresters surge arresters are used for protection of electrical equipment from all kind of overvoltages caused by lightening or switching operations. For the example in figure 2, a 10kaarrester was selected. Application guide dynavar metaloxide surge arrester. Jun, 2018 the second step will require an arrester energy capability selection. Lightning and surge protection basics we dont just want to support you with excellent solutions, but also to be on hand with help and advice. While lightning current arresters class 1 are used to protect against direct lightning surge currents, surge arresters class 2 protect equipment from induced surges in electrical wiring. Lightning arrester should be located close to the equipment that it is expected to protect.
Specify the appropriate elastimold catalog number from the selection chart. Apr 11, 2016 surge arresters in transmission line surge arrester is also used in transmission system just for the same and basic purpose which is the safety of our equipments and also the transmission line 37. Nov 18, 2016 a surge arrester is a voltage activated the device that protects computers and other electronic equipment from surges or transient voltages in electrical power or data cables, whether it be from lightning or a switching surge. The objective of arrester application is to select the lowest rated surge arrester which will provide adequate overall protection of the equipment insulation and have a satisfactory service life when connected to the power system. Ar series surge arresters yokogawa electric corporation. The selection of surge arresters has become very confusing for the layman and gets even worse when trying to ensure that you select the correct surge and lightning protection for the application. The rating of the arrester, the class of arrester and the location of the arrester all play a part in the surge protection.
Check insulator withstand capability of the housing use paragraph 8. Why do we make the rating of surge arrester kv always. Lightning is rarely, if ever, an energy consideration in shielded substation environments and may be neglected. Contents definition of surge arresters 02 portfolio overview 04 history timeline 06 movs. The need for such a guide is driven by the loss of expertise in developing equipment specifications as existing utility staff retires. In large substations, arrestors should be installed at takeoff points of the lines and of the terminal apparatus. Switching surge current switching surge discharge voltage mcov 2 1. Test to confirm that arrester can withstand a combination of stresses that an arrester is faced with in service while energised at power frequency voltage. Pdf selection of station surge arresters for control of slowfront. Many factors like system voltages, basic impulse insulation level, arrestor rating, station layout. The plugin arrester consists of a separable main unit and terminal block. Surge arrester for dallas homeowners not all surge arresters protect systems from lightning. The third selection criterion determines the particular type of azg arrester line discharge class 2, 3, or 4 based upon the switching surge energy that the arrester will be expected to discharge in a specific application.
Coordination of insulation and selection of mo surge arresters. Overvoltage protection metaloxide surge arresters in. The energy that a surge arrester can absorb, in one or more impulses, without damage and without loss of thermal. English pdf leaflet high voltage surge arresters product line card english. The example in table 2 is for both distribution and transmission systems. This product overview makes it easy to choose the right arrester. Mar 05, 2018 the rating of the arrester, the class of arrester and the location of the arrester all play a part in the surge protection. A surge arrester is a device to protect electrical equipment from overvoltage transients caused by external lightning or internal switching events.
The selection of the surge arrester depends on the application to be protected. Selection and specification guide for high voltage surge. Highvoltage surge arresters digital asset management. Product overview abb high voltage products surge arresters. The arrester with the minimum rating is preferred because it provides the greatest. This discharge voltage represents the response of an arrester to a slowrising surge generated within the power systems during breaker or switch operations.
Ultimately, the role of a surge arrester is to divert surges away from equipment. This brochure provides you with an overview of lightning and surge protection for electrical systems. The route to the right surge arrester from abb switzerland in wettingen abb switzerland ltd. Z surge impedance of the line 350 400 l length of line in km.
Surge arresters in transmission line surge arrester is also used in transmission system just for the same and basic purpose which is the safety of our equipments and also the transmission line 37. Exlim r, 10 ka, iec arrester class designation sl 75 exlim qe, 10 ka, iec arrester class designation sm 81 exlim qd, 10 ka, iec arrester class designation sm 88 exlim p, 20 ka, iec arrester class designation sh 94 exlim t, 20 ka, iec arrester class designation sh 102. 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. This buyers guide deals with high voltage surge arresters for standard ac applications. This includes basic information on the topics of technology and electronics that applies to all of us. The medium voltage surge arrester absorbed energy caused by. Therefore, there is a need to transfer knowledge to new staff and also to document requirements on acquiring more reliable, safer and cost effective surge arrester technology for both new and replacement projects. Simplified selection procedure 7 design features porcelainhoused surge arresters, exlim 15. Flow chart selection of mo surge arresters for mv 3pahse a. Clamp the over voltage down below the bil of the equipment 3. May 26, 2011 in this surge arrester selection guide, an overview of the processes and criteria are given. Definition of surge arresters surge arresters are used to protect highvoltage equipment in substations, such as transformers, circuit breakers, and bushings, against the effects of overvoltages caused by incoming surges. Since introducing the worlds first metal oxide arrester in 1976, offering new concepts in. In this brochure, you will gain an insight into the field of surge protection.
Td235022en effective august 2017 supersedes march 1997. Surge arrester selection guide power quality in electrical. Short circuit test of aresster before the installation of surge arrester many test are applied on this to mark it as verified. Surge arrester placement for substation lightning protection. Based on usage examples, this product overview makes it easy to choose the right arrester. Exlim zinc oxide surge arresters with porcelainhoused insulator. How to select the right arrester hubbell power systems. Similar to how a fuse functions to protect an electrical system from damage due to overcurrent conditions, the job of a surge arrester is to protect. Shielded surge arresters arrester application table voltage class kv. Uhv surge arresters are usually installed in the vicinity of the main electrical equipment in substations to limit lightning and switching overvoltage, thereby protecting the electrical equipment in uhv substations. If you see any potential improvements or errors, please let me know at jonathan.
Siliconehoused surge arrester pexlim pz english pdf leaflet surge arrester for gis elk04c english pdf leaflet three phase surge arrester az04d for 145 kv gis, elk04 c english pdf leaflet texlim product note english pdf leaflet surge arrester zno block testing english pdf leaflet high voltage surge arresters. Depending on system activity a surge arrester is designed to handle multiple surges at various magnitudes and duration. English pdf catalogue high voltage surge arresters buyer. 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. Arrester rating selection probably the most widely used table in arrester datasheets is the arrester rating selection table. Pdf selection of the surge arrester energy absorption capability. The basics of surge protection the basics of surge protection. Ge offers an extensive line of surge arrester products. Td235022en effective august 2017 supersedes march 1997 td. The protective characteristics of surge arresters directly dictate the design of the.
Even though there may be links to suppliers, there is no preference in the selection process. Probably the most widely used table in arrester datasheets is the arrester rating selection table. Selection of nominal discharge current, charge and. Contents definition of surge arresters 02 siemens surge arresters for any requirement 04 always the best solution 05 history timeline 06 movs. Peak voltage amplitude kv distance to point x m u yphase a u yphase b u yphase c u zphase a u zphase b u zphase c most critical points are the closest point to the line. Selection of the surge arrester is based on the following consideration assuming the user has previously determined the appropriate arrester mcov. Surge arresters are used to protect transmission lines, transformer or other equipments from transient voltage. Selection table and how to select a suitable surge arrester 18 applications as line surge arresters 23 early detection of relevant changes through efficient equipment monitoring 24 product range 26 3el5 surge arrester with silicone rubber housing and cage design. Need help understanding the fundamentals of surge arresters. Understanding the arrester datasheet nema arresters. Substation arrester selection hubbell power systems. This arrester provides protection against all types of ac and dc over voltages. Abb ability wireless monitor for surge arrester english pdf catalogue type texlim surge arresters 123800kv english pdf catalogue. Pdf application and analysis for surge arrester on.
Application and analysis for surge arrester on lightning protection of distribution network article pdf available in matec web of conferences 3410. There are 3 x main categories of lightning surge arresters. Iec line discharge classes with 2, 3, and 4 polymer housings ge tranquell surge arresters product selection guide. The second step will require an arrester energy capability selection. Distribution systems siemens 3ek cage design distribution class surge arrester product family is ideally suited for the reliable protection of. The catalogues list the available standard arresters from abb of por. This selection guide is 100% neutral in its selection process. In this surge arrester selection guide, an overview of the processes and criteria are given. Abb has more than 100 years of experience in designing and manufacturing surge arresters and protection devices. Ge offers one of the most comprehensive range of surge arrester products in the world today.
Selection table and how to select a suitable surge arrester. The maximum surge current between any one phase and neutral that the spd can withstand for a single strike, 820 s current. Lightning and surge protection basics phoenix contact. Selection of arrester size since the arrester valve element carries all, or a substantial part of the continuous operating voltage, and conducts a small grading current, the most important application criterion for the dynavar arrester is the maximum voltage which can be continuously applied. The main requirement to pass this test is that the arrester is able to cool down in between impulses while under power frequency voltage, i. This low protection level requires the use of arresters whose rated voltage should be selected very carefully regarding the level of the temporary overvoltages tov. Abb high voltage products surge arresters 3 surge arrester from abb switzerland in wettingen abb switzerland ltd.
The application and selection of lightning arresters. 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. Surge arresters are voltage limiting devices used to protect electrical insulation from voltage spikes in a power system. Selection and installation of electrical equipment c. These surges can come from various sources, but they primarily result from lightning and switching surges.
Abb surge arresters buyers guide edition 5, 200310 c1 selection of arrester simpli. Shielded surge arresters metal oxide varistor mov surge. The zinc oxide surge arrester can be used in the following conditions. The basics of surge protection we dont just want to support you with convincing solutions, but also to be on hand with help and advice. 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. Nov 09, 2018 a guide to surge arrester selection, application, maintenance and testing. It is mainly used for overvoltage protection at all voltage levels in a power system. This includes basic information about engineering and electronics topics. We have created a selection table for each of our product groups. A guide to surge arrester selection, application, maintenance and testing.