Frequency converter fault protection device and frequency converter

The present invention discloses a frequency converter fault protection device and a frequency converter. The frequency converter and a transformer are respectively connected with a power supply. The frequency converter outputs a signal to a contactor to control the on/off state of a motor. The trans...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	XIANG SHOUBING, XIA QINGHE, GAO JIANTAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION
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Beschreibung
Zusammenfassung:	The present invention discloses a frequency converter fault protection device and a frequency converter. The frequency converter and a transformer are respectively connected with a power supply. The frequency converter outputs a signal to a contactor to control the on/off state of a motor. The transformer is connected with a safety circuit and the contactor to control the on/off state of the motor through the safety circuit. The frequency converter and the safety circuit are respectively connected with a protection device. The protection device comprises a fault detection module, a wave sealing circuit and an enabling unit. The protection action for the frequency converter is realized through the protection device. According to the technical scheme of the invention, the frequency converter and the safety circuit are connected with the protection device. The protection device is provided with the fault detection circuit, the wave sealing circuit and the enabling unit. Therefore, various types of fault informat