High frequency recommended vocabulary
IEC 61000-4-5 is the basic standard for immunity to unidirectional surges, the high-energy transients caused by lightning strikes on or near an installation and by the switching of power system equipment. It defines a combination wave generator that produces a 1.2/50 microsecond open-circuit voltage and an 8/20 microsecond short-circuit current from the same source, so that the energy delivered to the equipment depends on the impedance presented at the port. The standard specifies the coupling and decoupling networks used to apply the surge to a.c. and d.c. power ports in line-to-line and line-to-earth configurations, and the networks used for unshielded outdoor signal and telecommunication lines, where the generators are combined with series impedance and protective components to simulate the behaviour of the line. Test levels range from 0.5 kV to 4 kV for power ports and are selected according to the environment and the installation class. The procedure defines the number of surges, the phase angles at which they are applied, the repetition interval and the criteria for assessing performance.
The CWS 600 complies with IEC/EN 61000-4-5, IEC/EN-4-9 and simulates high-voltage surges induced by lightning and power grid switching.
The CWS 3G is specially designed for simulating low voltage surge pulse disturbances phenomenon, which can be used in surge protection device (TVS tube, TSPDs, SIDAC, surge suppressor and wafer or package level) immunity test. Its output voltage can be adjustable from 1 V to 30 V, which totally meet the test requirement of IEC/EN 61000-4-5 and GB/T 17626.5.
The CWS 20G Combination Lightning Surge Generator is based on the company's third-generation control platform. It is designed according to the requirements of IEC/EN 61000-4-5, IEC 60950, IEC 62305-4, IEC 61643-1, ITU-T K17, ITU-T K21.
The CWS 120 series is specially designed for simulating low voltage surge pulse disturbances phenomenon, which can be used in surge protection device (TVS tube, TSPDs, SIDAC, surge suppressor and wafer or package level) immunity test. Its output voltage can be adjustable from 1 V to 1,200 V, which totally meet the test requirement of IEC/EN 61000-4-5 and GB/T 17626.5.
The CWS 120G is specially designed for simulating low voltage surge pulse disturbances phenomenon, which can be used in surge protection device (TVS tube, TSPDs, SIDAC, surge suppressor and wafer or package level) immunity test. Its output voltage can be adjustable from 1 V to 1200 V
The CWS 120CT is specially designed for simulating low voltage surge pulse disturbances phenomenon, which can be used in surge protection device (TVS tube, TSPDs, SIDAC, surge suppressor and wafer or package level) immunity test.
The CWS 600 Series are designed in compliance with IEC/EN 61000-4-5 for simulating high-voltage surges induced by lightning transient and power grid switching transients.
The CWS 1000N Lightning Surge Generator complies with IEC/EN 61000-4-5 and IEC/EN 61000-4-9 standards, and is capable of simulating surge transients generated by grid switching and lightning strikes.
The CWS 2000C & CWS 2000T communication surge immunity tester complies with IEC 61000-4-5 and other standard requirements.
The SPN 3832TM Lightening Surge Coupling/Decoupling Network (three-phase) complies with IEC/EN 61000-4-5, and can be combined with CCS and CWS series instruments to form an EMC surge test system.
The SPN 4863T10 is an automatic coupling/decoupling network (CDN) designed for surge immunity testing in accordance with IEC 61000-4-5.
The SPN 3850T15 HV High-Power Lightening Surge Coupling/Decoupling Network complies with IEC 61000-4-5 requirements and provides fully automated single-phase/three-phase coupling and decoupling functions.
The SPN 4516S15 HV Lightning Surge Coupling/Decoupling Network complies with IEC 61000-4-5 and IEC 61000-4-12 standards. It provides fully automatic single-phase coupling/decoupling functions, supports both AC and DC power supply applications, and can be used with the CWS series.
The SPN 6932T10 HV High Power Lightening Surge Coupling/Decoupling Network provides fully automated three-phase coupling and decoupling functions.
The CDN 405CANR coupling/decoupling network complies with IEC 61000-4-5 and GB/T 17626.5.
The CDN 405M40 complies with IEC/EN 61000-4-5 and GB/T 24338.5. It is a professional CDN developed for lightning surge immunity tests on railway power supply ports.
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