Surge Generator

surge generator

[′sərj ‚jen·ə‚rād·ər]
(electricity)
A device for producing high-voltage pulses, usually by charging capacitors in parallel and discharging them in series.

Surge Generator

 

a synchronous generator (usually for three-phase current) designed for short-duration operation under short-circuit conditions.

A surge generator is usually an air-cooled, two-pole turbine generator. Such generators are used to test high-voltage apparatus for switching capability and thermal and electrodynamic stability. The apparatus being tested is connected to the surge generator either directly or through a transformer. The short circuit lasts 0.06–0.15 sec, after which the surge generator is cooled for several minutes. The voltage generated is usually in the range from 6 to 20 kilovolts (kV); the power ratings of the largest surge generators range from 3 to 7.5 gigavolts-amperes. Surge generators are driven by asynchronous electric motors with phase-wound rotors, having power ratings of up to 6 gigawatts and excited by a separate source.

Difficulties in the design and construction of surge generators are associated with the high electrodynamic stresses (surge stresses) imposed on the stator winding under short-circuit conditions.

References in periodicals archive ?
Tenders are invited for Supply of telecom surge generator
Testing services include the areas of industrial low voltage devices and systems (which boasts one of the world's most efficient surge generator systems), the safety of electrical equipment and electromagnetic compatibility (EMC), as well as environmental tests.
The surge generator features a special control device, which allows the adjustment of the impulse excitation generated by the exciter, even during short-circuits.
Therefore, our PV surge generator is calibrated only to that level.
When the impulse voltage test is conducted on PV modules, the technician must measure the capacitance of each panel being tested and use the proper tap on the surge generator to make sure that the pulse delivered to the panel is in tolerance.
The most serious technical limitations of this method are lower peak values and different waveforms of surge currents attainable in practice with regard to the natural lightning phenomena and influence of the surge generator simulation circuit [1].
Surge currents were generated with UCS 500-M surge generator, which is capable to produce:
Tenders are invited for Supply of Current Surge Generator
The lightning surge generator must be able to produce the required open-circuit voltage and short-circuit current with a waveform and sufficient energy to meet the requirements.
There are notable dissimilarities between the individual standards, and proper planning is required if you are trying to use the same surge generator for both the GR-1089-CORE lightning test and the EN 61000-4-5 surge immunity test on AC power inputs.
Their surge generator oscillated when loaded by many SMPS capacitors.
Tenders are invited for Supply of Surge Generator For Rccb/Rcbo Testing