Surge diverter installation in compliance with as4070. The quick reaction times of surge arresters are used to provide this protection. Din surge diverter installation instructions 2003 erico inc, 34600 solon rd, solon, oh 449 phone 440 2480100 fax 440 5191675 page 1 of 2 1. V do not continue to use surge arresters whose short circuit mechanism has been activated. Lightning strikes and the dangerous surges and transients induced by lightning, as well as surges caused by motor switching and power supply regulation problems, represent a direct threat to people, building. Rectangular waves of long duration are also used for testing.
Surge diverter article about surge diverter by the free. A protection arrangement for electricity distribution lines 14 includes a plurality of stacks 18 of metal oxide varistors movs 16, said stacks 18 being arranged in parallel. The earth connection from the surge diverter should be made to the same point that equipment is earthed to. A high voltage surge arrester comprise plurality of low voltage surge arresters coupled together in a series parallel network, the low voltage arresters being of a high strength polymeric type consisting of. Lsseries surge diverters provide high energy surge diversion for protection against power surge caused by external sources as lightning strikes and substation switching. The advantage of this is that you can download the correct, uptodate technical. A sur ge modifier i s nothing but a small shunt capacitor connecte d betwee n the li ne and earth, or a series. The protection voltage obtained with a single column is specified at a reference current usually 500 a or 1 ka. Novaris sdpv surge diverters provide the highest level of protection for photovoltaic equipment with voltages up to v.
Technical data sheet power surge protection devices spd. The sdd2 diverters are housed in a din compliant failsafe metal enclosure. A portable device containing one or more electrical outlets that protects. Download fulltext pdf inclusion of surge diverters in system overvoltage calculations article pdf available in proceedings of the institution of electrical engineers 12612. They offer ll, ln, le and ne, repeated protection in lightning intense environment by.
Abb surge arresters are the primary protection against atmospheric and switching over voltages. Trabtech surge protection user manual for specialist electrical planners. A surge diverter is a piece of equipment that diverts excess voltages caused by spikes in the electrical supply to earth, thus protecting sensitive electrical and electronic equipment. Max continuous operating voltage uc 150 vac 200 vdc. Sdxyz x number of phases 1, 2, 3 y surge rating 80, 120, 160, 200 z options n. Surges, or transients, are brief overvoltage spikes or disturbances on a power waveform that can damage, degrade, or destroy electronic equipment. Surge diverters type vsd have been designed to provide effective protection of motor and transformer insulation against voltage surges, which may sometimes. Safe and reliable protection of electrical equipment. Use sd multimov high energy surge diverters for single phase point of entry protection at main switchboards. In a switchboard the surge diverter should be connected to the main earthing bar. When a lightning flash takes place near overhead lines, it starts an impulsive rush of electricity in. Choosing surge protection equipment, 17520 clipsal. Surge diverter definition of surge diverter by the free. Surge protective devices spd assist in the protection of valuable electrical.
The standard format has a m6 iso coarse threaded stud at each end, whereas the flying lead version has one m6 stud connection and an insulated 400mm. Surge modifiers which are s urge capac itor, a surge rea ctor and surge absorber. A surge protector or spike suppressor, or surge suppressor, or surge diverter is an appliance or device designed to protect electrical devices from voltage spikes overview. Models are available for all wiring systems worldwide. Pdf inclusion of surge diverters in system overvoltage. Surge arrester and switching spark gaps tdk electronics.
In conjunction with other surge protection measures such as power boards and safety switches, a surge diverter can play a central role in keeping your house safe. Novaris sdd2 surge diverters offer an ideal solution for dc and two phase systems. Surge protection devices spd overvoltage schneider electric. Mtl surge protection we design and manufacture a wide range of protection solutions for all of your system surge protection requirements. Singlepole surge arrester with integrated backup fuse for higher voltage 440 v. We offer a wealth of over 50 years experience in the surge. Although spd is able to withstand imax probably up level will be higher than ue. All bsi british standards available online in electronic and print formats. The performance of surge diverters can be dramatically affected by the method of connection refer section 7. Phoenix contact surge protection and interference filters. Where possible select a mounting method that allows the movtec to be connected in the. These yardsticks can be used by specifying and switchboard.
Novaris sdh high voltage surge diverters have been engineered for system voltages above 600vrms. A surge arrester is a device to protect electrical equipment from overvoltage transients caused by external lightning or internal switching events. Surge diverter testing swp check this is the latest process zone version before use. All other trademarks are the property of their respective owners. Pdf the surge voltages, especially those due to lightning have very high magnitudes. These devices were formerly called lightning arresters but are now known as surge diverters.
Protection zones lpzs concept specifies required locations for surge. The second value 20 is the duration for the test transient to decrease to half its peak value. Surge protection devices catalogue 20142015 lets connect. Highfrequency, lowenergy interference can be smoothed and eliminated using interference filters. Surge protection devices spd provide protection against overvoltage which typically originate from lighting strikes on your site or to your site from the electricity grid and telecommunication network. Being full 3 mode or 10mode devices, the diverters have been designed for mounting at either main power switchboards, major distribution boards or subboards and should be installed in front of any. A device placed in an electrical circuit to prevent the passage of surges and spikes that could damage electronic equipment. Typical applications include aviation runway lighting.
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