Beautiful design rules for medium frequency electric furnace
When designing the KGPS thyristor medium frequency electric furnace device, in addition to paying attention to the appearance, ease of installation, operation and necessary ventilation and heat dissipation conditions, special attention should be paid to the following problems.
(1) The thyristor type intermediate frequency electric furnace device is mainly composed of three parts: power frequency rectification and filtration
Waves, inverters and load circuits, instrumentation and display signals and control systems. To avoid doing each other
Disturbance, each part should be placed separately, it is best to install in the order of electrical schematics, avoid walking
The lines cross each other.
(2) SCR rectification control unit and inverter control unit, preferably made separately
Boards are routed separately to avoid interference with each other.
(3) In order to prevent interference, the main circuit high current transmission line should not be laid parallel to the control line.
In the same slot, or close to each other. Relay contact circuit operation line must be controlled
The small current lines such as the input signal line and the pulse output line of the unit are separately laid. signal
Wire and pulse transmission lines should be connected by shielded wires.
(4) The output return conductor should be far from the casing and other components to prevent the casing or its
His parts are partially hot.
There are many types of power supply circuits for medium frequency electric furnaces, and typical main circuits of parallel inverter type intermediate frequency power supplies.
