Our surge arresters are absolutely reliable and characterized by easy installation, low maintenance costs and an extremely long operating life. We place 9kv in 11kv substation becouse it can attract the lightning surges in the 11kv. Rashtriya electrical is a wellrenowned company and is indulge in the business of overhead line insulator form 1969. The typical lightning arrester has a highvoltage terminal and a ground terminal.
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. The arrester provides a lowimpedance path to ground for the current from a lightning strike or switching overvoltage and then restores to a normal operating condition. Abb offers a complete range of surge arresters for high and medium voltage applications. This article is a guide to understanding the arrester datasheet and what is behind it. Ge offers an extensive line of surge arrester products. For use when requirements of lightning intensity, energy capability and pollution are moderate. Ultrasil polymerhoused varistar stationclass surge.
Multiple documents found abb library could not identify a unique document based on the available parameters. Foreword this foreword is not a part of ieee std c62. This will be applicable to the effectively earthed 11 kv systems coefficient of earth not exceeding 80 percent as per is. Protection of switchgear, transformers and other equipment in high voltage systems against atmospheric and switching overvoltages. Pdf design of lightning arresters for electrical power systems. 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.
From distribution class to ehv arresters up to 612kv rating as well as. System application voltages 3345 kv rated arrester voltages, ur 3312 kv. 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. Ieeeiec lightning arrester arresters for ac and dc applications. Hps manufactures ohio brass polymer and porcelain insulators and arresters used in the transmission, substation and distribution markets. Dec 15, 2015 this is a lightning arrester from an 11kv power distribution line with an interesting feature to clear itself electrically when sustained current flows through it.
It is a very simple type of diverter and consists of two 1. 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 kv 18 egla externally gapped line arrester 19 tvc transient voltage clampers 20 spg4 spark gap surge arresters 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. 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. This is a lightning arrester from an 11kv power distribution line with an interesting feature to clear itself electrically when sustained current flows through it. The rated voltage of lightning arresters shall be 9 kv rms. Why do we make the rating of surge arrester kv always.
The voltage was recorded at the substation 11022 kv and at. Mansa trading company offering 75a200a 11 kv high voltage lightning arrester at rs 1200piece in delhi. I23583 varistar type azg3 surge arresters for systems. 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. One rod is connected to the line circuit and the other rod is connected to earth. A wide variety of 11kv surge arrester options are available to you, such as power, high voltage. For normal system, the voltage and current increase. A lightning arrester alternative spelling lightning arrestor also called lightning diverter is a device used on electric power systems and telecommunication systems to protect the insulation and conductors of the system from the damaging effects of lightning. Pdf lightning protection of overhead power distribution lines.
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. When lightning strikes a line protected with a lightning arrester, the nonlinear. Ieee guide for the application of metaloxide surge. The catalogues list the available standard arresters from abb of por.
All ferrous parts should be galvanized as per is 2633 1972 or its latest. During normal voltages lightning arresters does not conduct and acts as an insulator drawing a very little leakage current. For normal system, the voltage and current increases linearly, i. Our ieee station arresters are 100% routine tested and designed to exceed the requirements of ieee c62. Lightning protection of overhead power distribution lines.
The lightning arresters are used to protect power system from high voltage surges. The 3ej0 and 3ej9 surge arresters are optimized with an extremely low protection level for protection against overvoltages. A flexible arrester family for line discharge class 2 to 5 and system voltage up to 550 kv. A good quality supplier will fully disclose the relevant data in a format that is comprehensible and userfriendly. Elastimold mov surge arresters provide high voltage lightning and switching surge protection of transformers, cable, equipment and other components typically located on underground. Polymer arrester outline drawings contd porcelain arrester outline drawings mm for specifications on class 3, 4 and 5 ratings, please refer to the tables on pages 7 to 15. Line discharge class 3 electrical apparatus i23583 0711 supersedes 1101 figure 1. Shielded surge arresters metal oxide varistor mov surge. High overvoltage energy absorption capability the zinc oxide arresters can absorb all kinds of energy of lightning and switching surge. Part of selecting a good quality arrester is understanding the published data. Polymer lightning arrester 30kv 5ka lightning arrester. Dmxn surge arresters are used for the protection of switchgear, transformers and other equipment in high voltage systems against atmospheric and switching overvoltages. Polymer housed moa for 110kv the polymer housed moa for 10kv.
A lightning arrester is a device used on electrical power systems and telecommunications systems to protect the insulation. Mediumvoltage surge arresters digital asset management. Our designs include suspension, station and line post, as well as polymer insulator and arrester combinations for lightning. Get best price and read about company and get contact details and address. Varistar storm trapper high energy arrester, underoildistributionclass surge arresters varistar storm trapper high energy arrester, external mount 23516 5 23516 5. The cable termination is attached via flange to the hv electrical equipment surge arresters are complete with corrosionresistant fracture membrane that opens the arrester in case of an internal fault and allows for a defined axial pressure relief on the bottom of the surge arrester without any damage to the plugin high voltage electrical. Capability against multiple lightning is greatly improved. A lightning arrester is the first component in a three step process designed to eliminate damaging voltage spikes from damaging electrical and electronic devices. Superior design where low weight, reduced clearances, flexible. Arresterfacts 017 what is a transmission line arrester copyright arresterworks 2009 jonathan j. Abb surge arresters are the primary protection against atmospheric and switching over voltages. Now the transmission line first parallel connected with lightning arrester to diverge surge, followed by cvt connected parallel. Surge arresters mv hv 11kv 33kv medium high voltage. Electrical centre a 1 11 kv 45 kn disc insulator nos 260.
Large motors and generators large transformers mediumvoltage switchgear and motor control centers electrical distribution systems are subject to power surges, switching transients,faults,and lightning strikes at anytime. Aug 08, 2016 a short and simple overview of a lightning arrester for the nontechnical. Type dmxn surge arresters maximum system voltage 2 to 36 kv. In case of lightning, the spark gap is ignited and the overvoltage is safely discharged to the ground. Abstract this research project presents a method of planning for the electrical loads requirements using load estimation method rather than measurement method because of its simplicity, flexibility, sustainability and cost reliability and the. 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.
Zno gapless lightning arrester or surge arrester electrical4u. Where, i r and v r are the reference current and voltage respectively of the lightning arrester or surge arrester block. Type 3ej9 surge arresters should be used for power plants and extensive cable networks. Jun 08, 2011 11kv415v over head lines specification and installation rec.
Abb has more than 100 years of experience in designing and manufacturing surge arresters and protection devices. Surge arresters help prevent damage to apparatus due to transient overvoltages. The value of x is 30 to 40 in case of metal oxide block. It is designated by the maximum permissible value of power frequency voltage which it can support across its line and earth terminal while still carrying effectively and without the automatic extinction of. 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 first devices are of the socalled cathode drop type. Lightning arrester ratings the rating of a lightning arrester is given below, normal or rated voltage. Sf6insulated, metalenclosed surge arresters siemens provides gasinsulated, metalenclosed surge arresters for standard and special ac and dc applications from 72. For use when requirements of lightning intensity, energy capability and pollution are heavy. What is the difference between lightning arrester and.
Surge arresters are used to protect transmission lines, transformer or other equipments from transient voltage. It is designated by the maximum permissible value of power frequency voltage which it can support across its line and earth terminal while still carrying effectively and without the automatic extinction of the followup current. Mar 12, 2020 where, i r and v r are the reference current and voltage respectively of the lightning arrester or surge arrester block. The lightning arrester is a nonlinear device that acts as an open circuit to low potentials, but conducts electrical current at very high potentials.
The surge arrestor shall be connected between phase and earth to an overhead system that is generally solidly earthed neutral 11kv and 33 kv. Design of lightning arresters for electrical power systems. 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. Pdf lightning protection of overhead power distribution. The main bus 33kv is connected to grid located at sector25, indiranagar, lucknow. Line surge arresters surge arresters siemens siemens. Yongde surge arresters can be applied to a variety of systems including substation equipment, acdc converte. Surge arrester technology and areas of application all siemens surge arresters are subject to certified quality management and comply with international standards. Abb fuses, abb surge arresters 11kv 33kv hv high voltage.
Need help understanding the fundamentals of surge arresters. Egla line surge arresters have an external spark gap placed in series that galvanically isolates the active part of the arrester from the line voltage in normal conditions. Often times line personnel over look a failed arrester because the arrester disconnector in the disconnected mode. Fault indicators fault indicators shall give a clear visual indication of a failed arrester without disconnecting the arrester from the line. Station and intermediate class surge arresters ieee. Lightning arrester normally a spark gap device connected between each leg of a pow.
Hi friends, in this article, i am going to discuss about lightning arrester types and lightning arrester working principle. Voltages induced on lines with and without surge arrester s. Mediumvoltage surge arresters surge arresters are used for protection of electrical equipment from all kind of overvoltages caused by lightening or switching operations. From distribution class to ehv arresters up to 612kv rating as well as high energy varistors for series capacitor applications. Hence the energy absorbed by the arrester is very small. 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. Understanding the arrester datasheet nema arresters. Ieee guide for the application of metaloxide surge arresters.
Mediumvoltage arresters for distribution networks surge. This is a device that could be mounted on higher voltage devices that could be used to disconnect this type of arrester as it does for distribution arresters. This specification covers the general requirements of the design, manufacture, testing, supply and delivery of surge arresters of gapless metaloxide type for 11kv. The xps arrester is designed to meet the following performance data. A wide variety of 15kv lightning arrester options are available to you, such as safety standards, usage, and standard or nonstandard. Each piece of electrical equipment in an electrical system needs to be protected from voltage surges. High voltage surge arrester specification applications. About 37% of these are power distribution equipment, 17% are other electrical equipment. 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.