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 “Ring wave”.
The technical excellence and many unique features of combination and ring wave generators translate directly into benefits for the user:
- Impulse repeatability pulse to pulse
- Reproducible test results between locations
- Automation reduces operator error
- Combined coupler for all EMC power tests
- Operator safety ensured
- Reduced test time
- ANSI coupling path compatible
- Save operator time with the automated test routines and test report facility
- Unparalleled reliability and system up-time
The “classic” combination wave generator for IEC, EN and ANSI applications up to 6kV/3kA. The integrated single phase CDN operates with EUT power up to
280V/16Aac and 110V/16Adc. Three applications can be programmed with the MIG0603IN; CWG 1.2/50us 2 ohm, CWG 1.2/50us 2+10 ohm and CWG 1.2/50us IEC. There is a direct output for data line testing as well as the CDN output.
A combination wave generator with Ringwave for IEC, EN and ANSI applications up to 6kV. The integrated single phase CDN operates with EUT power up to 280V/16Aac and 110V/16Adc. Six applications can be programmed with the MIG0603IN1; CWG 1.2/50us 2 ohm, CWG 1.2/50us 2+10 ohm, CWG 1.2/50us IEC, ringwave 12 ohms, ringwave 30 ohms and ringwave 200 ohms. There is a direct output for data line testing as well as the CDN output.
A compact generator with three distinct waveforms for IEC, EN, ANSI and ITU telecom applications up to 6kV. A combination wave, ringwave and 10/700us impulse can be applied through the integrated single phase CDN or for telecom applications using the direct output to the external CDN-UTP. The integrated single phase CDN operates with EUT power up to 280V/16Aac and 110V/16Adc. The addition of a 10/700us impulse makes this unit ideal for basic level telecom applications.
A pure ringwave generator with three outputs at 12, 30 and 200 ohms. This generator is appropriate for IEC, EN and ANSI applications. The integrated single phase CDN operates with EUT power up to 280V/16Aac and 110V/16Adc.
The “flag ship” Combination Wave generator with fully automatic 100A three phase CDN and optional EFT/Burst. Specially designed for higher current EUTs. The fully automatic CDN outputs are placed at the correct height for floor standing EUTs to fulfill both the IEC61000-4-5 and IEC61000-4-4 requirements. A high degree of automation, enables this generator to be programmed for a complete test suite including voltage ramping, phase angle ramping and coupling path selection.
A 12kV Combination wave generator with integrated and automatic single phase CDN. EUT current is 32Aac and 25Adc.
Similar to the MIG1206-1P except that a fully automatic three phase CDN is integrated with the combination wave generator. EUT current through the CDN is rated at 32A per phase.
A pure combination wave generator, MIG1206 can be applied for component testing using the TC-MIG24 test cabinet accessory. The high voltage outputs are conveniently located on the generator top. For applications requiring connection to AC or
DC power, the CDN-MIG12-32 can be used. Coupling path selection is manual on the front panel using safety high voltage connectors.
Like the MIG1206, MIG1809 is a combination wave generator conceived for direct connection to components. The high voltage outputs on top of the instrument are protected by the TC-MIG24 test cabinet which is integrated into the generator safety
This is the highest level stand alone combination wave generator. It is also designed for component testing with the high voltage outputs on top and the TC-MIG24 test cabinet.