Introduction of Series Resonance Intermediate Frequency Melting Furnace

· High power saving effect: small turn-off loss, high voltage characteristics, low reactive power loss

· One key to start, the whole machine can realize fool operation, avoid accidents caused by misoperation.

· The rectifier and inverter are combined with a power potentiometer, and the soft start is buffered. Buffer soft start. Self-judging the load status, if the load is short-circuited or open-circuited, the inverter output can be controlled with zero impact and micro current lock to avoid further expansion of the fault.

· High power factor, low harmonic interference. The power factor of the whole machine comφ≥0.95, no need to configure reactive power compensation and harmonic elimination devices, reducing the investment in building a factory.

· The inverter pulse and commutation dead time can be flexibly adjusted to adapt to various load frequencies.

· High reliability, the circuit adopts voltage and current double lock pulse position, which fundamentally solves the factor of generating straight-through.

· High startup success rate, 100% startup in any load state, with extremely high load adaptability: even in the freezing furnace (cold furnace) state, it can still output high power factor at full load

· High compatibility, reserved IGBT drive interface, temperature control interface, remote control interface, online blocking protection interface. The external drive board can directly drive the module; the temperature controller (or computer) can realize programmable temperature control.

· Environmental protection performance is good, relative to parallel resonance, the sound of the whole machine is smooth and crisp, no clutter noise, and very little harmonic to the intermediate frequency of the power grid.

Compared with traditional intermediate frequency furnace: