Each surge arrester in the range has a specific application. This device is designed for maximum discharge of 300 ka. Ge offers an extensive line of surge arrester products. Gasfilled surge arresters operate on the principle of an arc discharge. This includes basic information about engineering and electronics topics. Design of lightning arresters for electrical power systems. 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. Normally, high voltage surges that are dissipated by the surge arrester will not damage the surge arrester and it will continue to protect your circuit. Repetitive surges do not degrade mov type arresters. Secure pdf files include digital rights management drm software. Dervasil has computing resources and test equipment for designing medium voltage arresters and insulators. Elastimold mov surge arresters provide high voltage lightning and switching surge protection of transformers, cable, equipment and other components.
Pdf application and analysis for surge arrester on lightning. Assessment of surge arrester failure rate and application studies in hellenic high voltage transmission lines article pdf available in electric power systems research 802. Our permanent research and development and the concerted knowhow in our factories give our surge arresters a leading edge in overvoltage protection. Additional and more detailed information will be given in separate documents with respect to theory, background information, and specific applications.
Surge protection has been a primary concern when connecting devices and equipment to low, medium, or highvoltage electrical systems. Arresterfacts 011 the lightning surge and arresters copyright arresterworks 2008 jonathan j. Application guide for power factor testing of surge lighting. The psa and bsa arresters permit direct connection, eliminating the need for additional accessories. The company is a leader in its field in the czech market and offers a full range of lightning current arresters and class 1, class 2 and class 3 surge protection devices according to iec 616431. Surge arrester for dallas homeowners not all surge arresters protect systems from lightning. Check insulator withstand capability of the housing use paragraph 8. 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.
Arresters can withstand thousands of surges as long as the surges are within the operating capability of the arrester. Mediumvoltage surge arresters surge arresters are used for protection of electrical equipment from all kind of overvoltages caused by lightening or switching operations. Dervasil is a certified company iso 9001 and iso 14001. Periodic inspection of earthing and shortcircuiting devices. Acceptable limit means limiting over voltages to below bil of equipment being protected. The metal oxide arresters offer smooth turnon and turnoff at lower surge current levels than the older valve type siliconcarbide technology.
Power range surge arresters technical data, 262625 schneider. In addition, the prf1 master surge arrester covers the 400 v it system. Individuals should assess their risk by evaluating the potential. To install mov surge arresters in switchgear and mv mcc there are several physical aspects to be considered to assure reliable operation. Products include electric motors and motor controls, adjustable speed drives, power electronics, transmission and distribution systems, and more. 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.
In this brochure, you will gain an insight into the field of surge protection. The application and selection of lightning arresters. Place a surge arrestor every 600 on the twowire path. Arresters spd surge protective device this is also a surge diverter, but generally for voltages well below volts. Protecting consumers and their equipment sources of over voltages. Drm is included at the request of the publisher, as it helps them protect their by restricting file sharing.
Installing transmission line surge arresters on a standard 3 phase voltage system along the line, at calculated intervals, allows for optimum performance of the tla transmission line surge arrester, to give an increased system line voltage. Abb surge arresters are the primary protection against atmospheric and switching over voltages. This ensures that the table disappears invisible for the customer pdf. Overvoltage protection metaloxide surge arresters in. In order to read a secure pdf, you will need to install the fileopen plugin on your computer. Toshiba international corporation tic is toshiba s premiere manufacturing base in north america. The basics of surge protection the basics of surge protection.
A surge arrester is a device to protect electrical equipment from overvoltage transients caused by external lightning or internal switching events. Surge protection devices type 2 from 20 ka to 65 ka. Our experience is available to customers for specific applications. Prd1 surge arresters are fitted with easytoreplace withdrawable cartridges. This brochure provides you with an overview of lightning and surge protection for electrical systems. Tvss transient voltage surge suppressor again this is also a surge diverter, but generally for voltages well below volts. The company offers surge protection for lv power supplies, signal, measurement and control. Surge arresters over voltage protection basic function of a surge arrester is to limit overvoltages to acceptable limits. The steeper the surge wave front, the more the stressing of the interturn insulation of the lineend coils.
Lightning is the second or third most significant cause of outages. As soon as the voltage applied to the arrester exceeds the sparkover voltage, an arc is formed within the hermetically sealed discharge chamber in a matter of nanoseconds. Surge arresters ultrasil housed varigap surge arresters. Therefore eliminating the need to increase the standard insulation. Each piece of electrical equipment in an electrical system needs to be protected from voltage surges. Especially recommended for overvoltage protection of. You will find standard, uptodate texts for tender documents at our internet site. 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 5.
Am series surge arrester class i the enerdoor surge arrester am series provides advanced surge protection. Type 2 surge protection devices with integrated disconnector. Contamination surge arresters really wont help the failure mechanisms associated with contamination are active at 60 hz system voltage builtin defects surge arresters may help if the failure mechanism is triggered by a surge, then a surge arrester will. Surge protection devices type 2 or 3, from 8 ka to 65 ka. Surge arresters and lightning current arresters from dehn offer reliable protection against these hazards. It is also important to verify that the disconnector does not operate under surge conditions but isolates the ground lead during arrester short circuit. As a standard this series is offered in a metal enclosure and includes a visual indicator and optional remote alarm. Abb has more than 100 years of experience in designing and manufacturing surge arresters and protection devices. In lightning prone regions, consider grounding every 300 rather than going out to the maximum distance. Nov 18, 2016 surge arrester for dallas homeowners not all surge arresters protect systems from lightning.
Lightning and surge protection basics phoenix contact. Pdf in order to effectively reduce lightning stroke outage rate, effect of lightning protection with surge arrester. In the past, the company developed and manufactured varistors based on zno surge arresters in the lv applications and then another surge arresters made from them. This is done to ensure continuous system operation in the rare event of an arrester short circuit and to provide a visual indication of the disconnected unit. Since introducing the worlds first metal oxide arrester in 1976, offering new concepts in. Abb offers a complete range of surge arresters for high and medium voltage applications. It applies to gapless metaloxide surge arresters as defined in iec 600994, to surge arresters containing both series and parallel gapped structure 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. Electrically, they act as voltagedependent switches. 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.
Abb surge arresters buyers guide edition 5, 200310 a2 introduction safe, secure and economic supply of electricity with abb surge arresters abb surge arresters are the primary protection against atmospheric and switching overvoltages. 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 in the past surge arresters were called lightning arresters, this. 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. Fault indicators and surge counters for maintaining and monitoring arresters. Surge tec arresters are designed to limit surge voltages by discharging bypassing surge current to ground. Acti9 surge protection devices spds schneider electric global. Selection and specification guide for high voltage surge. Spds were previously known as transient v oltage surge suppressors or secondary surge arresters.
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. Surge arresters are protective devices which protect the insulation of highvoltage apparatuses against the strain. Figure 2 typical surge counter face with analog leakage meter and electromechanical counter installation considerations. Intemal lightning protection and more extensive overvoltage protec ton include measures for reducing the electrical and magnetic effects of the lightning current. They are generally connected in parallel with the equipment to be protected to divert. Clamp the over voltage down below the bil of the equipment 3.
Cahier technique n 179 lauritz knudsen by schneider electric. Pdf application and analysis for surge arrester on. 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. Application and analysis for surge arrester on lightning protection of distribution network article pdf available in matec web of conferences 3410. Normal duty 5 ka, heavy duty 10 ka, and heavy duty riser pole 10 ka electrical apparatus 23537 january 2000 supersedes 297 1 printed in u.
The latter, on the other hand, proves to have particularly good selfcleaning proper. 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. Surge arresters and lightning current arresters from dehn offer reliable. Power factor testing of surge lighting arresters 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. This includes basic information on the topics of technology and electronics that applies to all of us. The technical requirements covered include many normal utility requirements, operating conditions and applications for metal oxide surge arresters used on system voltage ratings ranging from 5kv to 800kv. There must be a surge arrestor at the end of the twowire that is the maximum distance from the. Contents definition of surge arresters 02 portfolio overview 04 history timeline 06 movs. Our white papers provide a range of practical examples on lightning and surge. To prevent damage to electrical equipment, surge protection considerations are paramount to a welldesigned electrical.
The flexcharge surge arresters are completely transparent to the system until the voltage on the system reaches the breakdown voltage of the unit. Lightning protection, surge arrestors, system protection. Downloads dehn lightning and surge protection, safety. Each surge arrestor protects a 300 foot radius of the twowire path. 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. Metaloxide surge arresters in highvoltage power systems. This handbook on surge arresters first appeared in 2001 as the first of two planned parts.
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