At present, nearly 100 countries and international organizations have responded to and participated in the construction of the market along the "Belt and Road", and a series of landmark projects have been successfully completed or have...

Ferromagnetic resonance makes the two thyristors connected in parallel in positive and negative parallel to the two ends of the open triangle alternately zero-cross trigger conduction, limit and damp the ferromagnetic resonance.

The secondary harmonic elimination strengthens and consolidates the primary harmonic elimination effect, eliminates the ferromagnetic resonance of various frequencies in the voltage transformer, and can perform fault display and alarm......

​At present, nearly 100 countries and international organizations have responded to and participated in the construction of the market along the "Belt and Road", and a series of landmark projects have been successfully completed or have...