On site testing of lightning protection devices after a severe thunderstorm with multiple tower strikes, how is a technician to know if the coaxial lightning. Our designs include suspension, station and line post, as well as polymer insulator and arrester. English pdf article selection, dimensioning and testing of line surge arresters english pdf article thermal behaviour of zno. Nov 09, 2018 surge arresters are voltage limiting devices used to protect electrical insulation from voltage spikes in a power system 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 the system from damage due to overvoltage conditions. The basics of surge protection the basics of surge protection. Typical substation arrester mounting is this a well functioning arrester or is the small. Siliconehoused surge arrester pexlim highvoltage surge. Type polimhm surge arresters english pdf catalogue high voltage surge arresters buyer. Leather work gloves, class 00 gloves, hearing protection, safety eyewear. A surge arrester is a protective device for limiting surge voltages on equipment by diverting surge current and returning the device to its original status. Foreword 3 foreword to the sixth edition the first edition of our guidelines for the dimensioning, testing and application of metaloxide surge arresters mo surge arresters for use in mediumvoltage systems. In this brochure, you will gain an insight into the field of surge protection. Arresterfacts002 arresterworks, consultants, arrester. Thus, all svnh surge arresters which do not exceed the height, mass and cog of the test sample are also qualified to the high seismic performance level of ieee 6932005.
This paper presents the results of a research project aiming the diagnostic of the silicon carbide surge arresters. Db119038 the type 1 range of surge arresters meets the normative withstand capability of current wave type 10350. Gapless zinc oxide surge arresters are the latest protective devises used to keep the system voltages well within limits. A method of testing an electrical surge arrester comprising the steps of applying dc voltages of continuously increasing magnitudes to a surge arrester. Doble testing looks like the method of choice for arrester testing. Mike is a senior transformer advisor and instructor at sdmyers. Surge arrester technology and areas of application all siemens surge arresters are subject to certified quality management and comply with international standards. Metaloxide surge arresters in highvoltage power systems. Metaloxide surge arresters without gaps for hvdc converter stations. High energy stresses and housing deterioration are the main factors of degradation and damage of surge arresters. Application guide for power factor testing of surge lighting.
Arresterfacts002 field testing arresters field testing arresters comes in many forms. Surge arresters are used in different locations at hvdc converter stations and various housing solutions can be applied e. Saha department of computer science and electrical engineering. The voltage surge test method this presentation provides an overview of iec 645, including some of the standard wave forms, and the circuits that are used to produce those waveforms voltage surge testing is typically done with commercially available surge test equipment the test equipment typically has a surge generator and a. Hps manufactures ohio brass polymer and porcelain insulators and arresters used in the transmission, substation and distribution markets. Regular monitoring of lightning arrester has prevented many failures in 66 kv to 765 kv substations. Transient voltage and surge protection fred grosz ge digital energy 830 w 40th street chicago, il 60609 usa t7732996652 m7734850247 f7732477805. In the preparation of this standards publication, input of users and other interested parties has been sought and evaluated. The addition of surge arresters to ul 1449 ensures that line side devices surge arresters will be manufactured with safety related protection similar to load side devices. Surge protec on using proper grounding rods and plates and baseline surge arrestors provides the best possible protec on against surge damage due to lightning or other electrical surge events. Testing performance of low voltage arresters 369 parameters 21, 22. In 2014, the first international standard for hvdc arresters was established, i.
The fact that it uses a 60hz source at 10kv makes it superior to a 5kv dc source when testing arresters made to perform at 64kvrms and above. The baseline surge arrestor blla01 is a cri cal part of the surge protec on scheme for the twowire path. Average clamping numbers result in the ul assigned voltage protection rating vpr for each protected mode. Vref tests partial discharge tests thermal tests leakage current dielectric tests watts loss tests this arresterfacts will show you the facts on each. Surge arrester housings for hvdc converter stations. It is integrated into the arrester ground connection and counts the surge arrester responses that have occurred. These devises should have variable resistance as a function of the voltage magnitude to divert overvoltage to ground. Definition of surge arresters 02 portfolio overview 04 history timeline 06 movs. Testing of metal oxide surge arrester monitoring mosam zuraida binti zainol a project report submitted in partial fulfillment of the requirements for the award of the degree of. Measurements on surge arresters are always performed at the same or recommended test voltage since nonlinear elements may be built into an arrester. Application of the test wave is done both prior to and after the nominal discharge current test i. A monitor is provided for continuously and simultaneously monitoring the magnitude of dc voltages being applied to, and the current being conducted across, the surge arrester test leads.
The application and selection of lightning arresters. The tested surge arrester met all requirements identified above for the high seismic performance level 1. This includes using a fluke multimeter, all test iv pro 2000 and dc high potential tester. A comprehensive outline for testing surge arresters is described below. Pdf testing performance of low voltage arresters researchgate. It would definitely be more comprehensive than a megger test. A surge arrester works by diverting the extra voltage into the earth wire, rather than flowing through the electronic. Production of high voltage surge arresters type pexlim english wmv movie seismic test high voltage surge arresters type pexlim english wmv movie excountii animation english exe movie data sheet abb ability wireless monitor for surge arrester english pdf data sheet. All hubbell power systems surge arresters are factory tested according to ieee c62.
Since most arresters are exposed to surges of many amplitudes some are over stressed. The range comprises of ac and dc solutions up to 1,100kv and arresters for special applications like railways, dcvoltage limiting devices and many other purposes. Application guidelines overvoltage protection metaloxide. The installation of lightning arresters helps decrease the adversarial effects resulting of lightning strike in the feeder 23. The diagnostic testing of high voltage silicon carbide surge. Ieee 6932005 seismic qualification testing of hubbell power. This inmr article contributed by arrester specialist, jonathan woodworth discussed using an ac or dc hipot, or dielectric tester, to assess the condition of a surge arrester. Learn what is the purpose of lightning arrester and why is testing necessary a lightning arrester, surge arrester or line arrester is a device used on electrical power systems and telecommunications systems to protect the insulation and conductors of the system from the damaging effects of lightning. Surge arresters are installed on a transformer to protect it from overvoltage transients.
Guide for selecting an arrester field test method prepared by jonathan woodworth consulting engineer arresterworks february 18, 2008. Surge arresters are installed on transmission and distribution line in substations between phase and earth in order to improve lightning performance and reduce failure rates. A surge arrester is connected to each phase conductor just before it enters the transformer. English pdf article new method for measurement of the resistivive leakage currents of metaloxide surge arresters in service. Please note that the standards relating to surge arresters are again undergoing radical change. A guide to surge arrester selection, application, maintenance and testing. This guide explains the power factor test procedure of these surge arresters. Tests is conducted in favourable conditions whenever possible. The 3ex5 030 surge counter is a traditional monitor for surge arresters. Modern surge arrester technology and inservice testing.
To the best of our knowledge and within the usual limits of testing practice, tests performed on these arresters demonstrate compliance with the relevant clauses of the referenced standard. Surge diverter testing swp check this is the latest process zone version before use. When surges occur, the insulating ceramic ring assembly sparks over, leaving only the mov disks in the circuit. Cp0804, ultrasil polymerhoused evolution surge arrester certified test report for details. Our surge arresters are absolutely reliable and characterized by easy installation, low maintenance costs and an extremely long operating life. After historical and theoretical introduction, which explains their principles and describes their characteristical properties, analysis of the standard iec 600994 and testing according to the standard with focus on the type tests follows. An electrical surge arrester tester comprising two surge arrester test leads and a voltage generator for generating and applying dc voltage of continuously increasing magnitudes to the surge arrester test leads. To prevent damage to electrical equipment, surge protection considerations are paramount to a welldesigned electrical. Some manufacturers state that no single test will indicate the complete operating characteristics of an arrester. 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. Moisture and partial discharges can be present simultaneously and contribute to the varistor degradation. Two of the most common tests to perform in the field on surge arresters are the doble power factor test and infrared analysis. Each piece of electrical equipment in an electrical system needs to be protected from voltage surges.
Lundquist abb switchgear ludvika, sweden abstract transmission line arresters may be subjected to high energy stresses caused by lightning. To demonstrate the resistance of a composite wrapped module to moisture ingress eaton performed the water immersion test on the evolution surge arrester without the polymerhousing material. Abb surge arresters are the primary protection against atmospheric and switching over voltages. Testing of surge arresters as per latest standards.
These surge arresters are being gradually replaced by the gapless zinc oxide. Testing includes insulation withstand test residual voltage test long duration current withstand accelerated aging procedure heat dissipation behavior. Abb offers a complete range of surge arresters for high and medium voltage applications. A dc blocked protector must be tested with the surge side connector. On site testing of coaxial rf lightning protectors testing lightning protectors is most accurate and reliable when the protector is out of circuit and attached directly to the lpspt.
Contents definition of surge arresters 02 portfolio overview 04 history timeline 06 movs. Todays technology for surge arresters intended for use in mediumvoltage systems is the. Application guide for power factor testing of surge lighting arresters introduction 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. Clamp the over voltage down below the bil of the equipment 3. This table documents how well the arrester clamps lightning and switching surges, which is the fundamental purpose of arresters. Basic methods for testing lightning arrestors and surge capacitors using standard test equipment. Surge arresters are widely used to help damage of apparatus due to high voltage.
Calculations of energy stresses were carried out for a typical 8 kv line arrester installation. The surge arrester is grounded, thereby providing a low impedance path to ground for. These surge arresters undergo various routine, acceptance and type tests as per the national international standards. This bachelors thesis is devoted to metal oxide surge arresters. Oct 19, 2017 mike horning explains why it is essential to a test transformer surge arresters. The type tests which validate the basic design of arrester elements and assembly are carried out in a third. Ieee 6932005 seismic qualification testing of hubbell.
Surge test current is 6x greater than previous ul 1449 2. Additional reference documents are listed on page 14. The 3ex5 050 surge counter with leakage current meter also monitors and displays the arrester leakage current. Guide for selecting an arrester field test method jonathan woodworth.
Application guidelines overvoltage protection metal. This includes using a fluke multimeter, alltest iv pro 2000 and dc high potential tester. 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. Discharge voltage table in every arrester datasheet, you will find a most important table about the discharge voltage of the arrester in question. Dec 15, 2010 basic methods for testing lightning arrestors and surge capacitors using standard test equipment. Power factor testing is extremely sensitive to weather conditions. The operation of evolution surge arresters differs from conventional metal oxide arresters. With the lcm500 surge arrester test set, it takes less than 15 minutes to establish that your surge arresters are healthy and the transformer is still protected. Surge arresters are voltage limiting devices used to protect electrical. Once in use, surge arresters do not require field testing for routine maintenance. Metaloxide surge arresters mosas designed to repeatedly limit the voltage surges on 48 hz to 62 hz power circuits. Check insulator withstand capability of the housing use paragraph 8. Doble engineering has been involved with surge arrester testing and monitoring for many years and may be able to help you. When a lightning surge or switching surge travels along the power line to the arrester, the current from the surge is diverted through the arrestor, in most cases to the earth.
Us4075549a apparatus and method for testing electrical. This standard represented an important step in unifying all the tests required on surge arresters for hvdc applications. This includes basic information on the topics of technology and electronics that applies to all of us. This standard applies to devices for separate mounting and to devices supplied integrally with other equipment. Monitoring equipment and field application for third harmonic analysis with compensation. Testing lightning arrestors and surge capacitors youtube. If a coax jumper is used for convenience, know thy jumper. For example, the typical housing for a v arrester is an frptube with silicone sheds. They also have performance records and data on various surge arresters. Page 2 of 4 standard work practice sp0512 ver 4 ergon energy corporation limited abn 50 087 646 062 ergon energy queensland pty ltd abn 11 121 177 802 additional ppe as required. Lpspt test from surge side connector, read 480 to 720 volts with 600 volt gas tube e.
Surge arrestor and grounding technical specifications. Pdf simulation and tests on surge arresters in highvoltage. Realizing its importance, cpri is organizing a one day workshop on testing of surge arresters as per latest standards. Only qualified workers with the proper safety training and calibrated testing equipment should perform these tasks. When a lightning surge or switching surge travels along the power line to the arrester, the current from the surge is diverted through the arrestor. Mike horning explains why it is essential to a test transformer surge arresters.
The testing of surge arresters before installation at site is very important for their successful operation at site. Limitation of switching overvoltages by use of transmission line arresters. A surge arrester may be inexpensive, but it has an important role in protecting your transformers. A surge arrester is capable of repeating these functions a large number of times as specified. The nominal discharge current test allows users to compare a surge. During steadystate conditions, the insulating ceramic ring assembly withstands system voltage while reducing electrical stress on the mov disks.
The typical lightning arrester has a highvoltage terminal and a ground terminal. Arrester type tests all arresters are designed and tested per requirements in iec 600994 and ieee c62. If arrester field testing is desired there are several test options with varying levels of usefulness and convenience. There are a number of effective ways to test an arrester in the field without necessarily having to rely on sophisticated equipment. Field testing of surge arresters can help extend service life and reduce the chances of sudden failure. Surge arresters transmission products siemens siemens. 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.
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