Triple Frequency Generator - Yangzhou Darui
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Triple Frequency GeneratorSimple maintenance, low cost, long service life, it is an ideal replacement for frequency multiplier generator sets.
Combination of three single-phase transformers: the primary side is star connection, the secondary side is open delta connection. When the iron core is not saturated, the main magnetic flux it produces must be a flat-top wave. Since the main magnetic flux of the flat-top waveform contains a large component of third harmonic magnetic energy Φ3, the third harmonic group magnetic flux frequency f3=3f1, so the main magnetic level induces a third harmonic phase electromotive force.
Since the primary side is star connection and the secondary side is open delta connection, the iron core works in a saturated state, and the no-load current I is a peaked wave. In addition to the fundamental wave, it also contains higher harmonics. Among the higher harmonics, the amplitude of I is larger. Due to the open secondary side, the three-phase fundamental components cancel each other out, leaving only the third harmonic output.
The whole machine voltage output is achieved by tuning to produce resonance under a 150Hz power supply. When the voltage is high, a certain squealing sound during resonance is normal.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
