What is a combination wave?

Combination waves generator or surges Generators are typically benchtop pieces of equipment that weigh a lot. Ground planes with links to the earth are needed for the safe operation of a transient generator in electromagnetic test settings. Testing three-phase power line systems necessitate more extensive coupling/decoupling networks, which significantly increases the overall size of the system.

A surge generator is a transient immunity test device that generates brief, high-voltage surges to determine the system’s overall immunity. It is possible to divide surge generators into two types: impulse voltage generators and impulse current generators. High impulsive currents are required to perform tests on various equipment, including lightning arresters, plasma devices, and equipment used in thermonuclear fusion, among other things.

Surge generators and combination waves
Surge generators produce strong spikes in voltage or current, known as surge waves or combination waves when they are turned on. Surge pulses cause electrical equipment to short circuit or malfunction as a result of their presence. A combination wave is formed when two waves combine to create a composite wave in which the two waves must account for the direction, amplitude, and phase of the composite wave in question. Surge generators are available for rent by test engineers to use during EMC testing to evaluate the immunity of a component or system.

Electrical substations must continue to supply power even in difficult situations such as lightning strikes. Thus eliminating sources of EMI in product design and attaining EMC compliance is critical. Combination wave generators offer a variety of output voltage ranges that are suitable for various testing applications. During a power outage, surge voltages and currents may reach many thousands of volts and several thousands of amps, respectively.

surge generator (lightning surge immunity test)

Overvoltages are the most common source of damage in industrial electronic systems. They may be produced either by switching movements in the equipment itself or by atmospheric discharges such as lightning, which can cause damage. The transfer impedance of the interference source is low if it is in the same circuit as the electronic equipment, and the impulse takes on the form of a current when it is in this circuit.

Alternatively, if the interference comes from an external source, the transfer impedance will be more significant, and a voltage impulse will be produced instead. A Combination Wave Generator (CWG) sends a voltage impulse into an open circuit while also delivering a current impulse into a short circuit to mimic both of these situations.

Surge Transients
Lightning strikes and electrical switching are both familiar sources of surge pulse or combo wave transients, as are other types of transients. An electrical surge transient may be caused by a lightning strike, whether the impact occurs directly on an electrical system or travels indirectly via wire. LISUN has the best surge generators in the market. Here these devices are built under the supervision of top engineers and technicians. That’s why LISUN is considered one of the best electrical equipment manufacturers in the world.

It is possible to produce electrical switching transients if the connected loads are changed due to insulation failure or other miscellaneous defects. It may also occur when one load is turned on, and the fault causes a surge of energy to spread to other devices.

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Integrating Sphere, Spectroradiometer, Surge Generator, ESD Simulator, EMI Receiver, EMC Test Equipment, Electrical Safety Tester, Environmental Chamber, Temperature Chamber, Climate Chamber, Thermal Chamber, Salt Spray Test, Dust Test Chamber, Waterproof Test, RoHS Test (EDXRF), Glow Wire Test and Needle Flame Test.

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