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Common fault table of rectifier circuit of induction melting furnace

Common fault table of rectifier circuit of ukuchithwa kwesithando somlilo

No DC voltage Rectified trigger without pulse output Rectifier trigger regulated power supply without voltage output
Poor contact of rectifier trigger board
Whether the synchronous transformer is damaged or welded
Turn off the power potentiometer
The blocking protection in the regulation system is damaged
DC voltage is low Individual rectifier bridge arm KP tube has no trigger pulse Poor contact of the connector or cause desoldering
Partial rectifier trigger without pulse output
The rectifier pulse transformer is damaged:

Pulse transformer wire disconnected

Short circuit of pulse transformer secondary diode

Some KP tubes have high trigger power
Some KP tubes or couplers are damaged
Poor contact of main circuit contactor or air switch (knife switch)