Combination wave and surge impulse tester EMC Partner AG IEC61000-4-5, IEC61643
The most frequent cause of damage in industrial electronic systems is overvoltages, caused either by switching actions in the equipment itself or by atmospheric discharges such as lightning. If the interference source is in the same circuit as the electronic equipment, the transfer impedance is low and the impulse takes a current form. If the interference is from some external source, the transfer impedance will be higher and a voltage impulse results. To simulate both these conditions, a Combination Wave Generator (CWG) is designed to deliver a voltage impulse into an open circuit and a current impulse into a short circuit. This is also known as a “Hybrid” generator. Combination Wave Generators have a virtual impedance (open circuit voltage / short circuit current) of 2 ohms. Power network transients can be modified by the cable properties so that in a well protected domestic or commercial environment, the impulse energy has an oscillatory form. This is known as a “Ringwave”.
EMC Partner Combination Wave and Ringwave Generators are used to simulate transient (impulses) in power supply networks.
Combination wave and Ringwave testing is performed on power or communication networks, which require Coupling and Decoupling Networks (CDNs) to superimpose the impulses and provide protection for auxiliary equipment that is not part of the test setup. Synchronization of the impulse with power frequencies is also required.
EMC Partner manufacture a range of surge generators up to 100kA abd 100kV.
