Product overview

This product is the power frequency power use magnetization curve of silicon steel sheet for core saturation in the transformer secondary coil of a Vee of the zero-sequence third harmonic EMF induction principle of portable test equipment.

Three times the frequency generator sets can be supplied together with the induced voltage control equipment and chassis Kit product. The generator power systems, power plants, substations, power supply networks of small capacity Transformers: cascade high voltage transformer for double frequency induction of high voltage test of basic equipment. Also can be of various low-voltage electronics, instrument power supply transformers, inductance coil electric coil frequency voltage test, but also can be used as a power of not more than 1KW double frequency power supply for some special power or testing of the electrical equipment.

This product is a static frequency converter equipment, low noise, small volume, in the high voltage system can completely replace the traditional frequency converter unit.

Working principle

Three phase transformer primary side into a star-shaped, two side triangles into opening in one side and symmetry of three-phase sine wave power, and increased the voltage to magnetic saturation of the iron core, the core flux containing increasing third harmonic component ,Iron core coil induction on third-harmonic voltage also increases.

By VEE generator secondary side output 150Hertz (frequency three times times) induced voltage as three times double frequency test voltage.

When the three times harmonic generator (for example JCC ——220High voltage cascade voltage transformer) load, the current changes from an emotional capacity, due to the influence of low power factor to make generators less efficient, generally only 20%You Joh. Therefore, the access in the sample to an empty winding current compensating reactor. To improve the test circuit power factor.

Technical parameters