Detection device for electronic release of low-voltage apparatus, and control method
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TIANJIN BAILI ELECTRIC CO LTD
- Publication Date
- 2012-05-09
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Abstract
Description
technical field
[0001] The invention belongs to a detection device, in particular to a detection device and a control method for a low-voltage electric appliance electronic trip unit. Background technique
[0002] At present, the known low-voltage circuit breaker releases are divided into magnetothermal and electronic releases. Electronic releases use transformers as signal acquisition devices, and complete circuit breaking through electronic circuit board circuits and magnetic flux converters based on soldered electronic components. The four-stage protection and other functions of the circuit breaker, because the electronic circuit board needs to collect electrical parameters such as various voltages and currents in the circuit breaker circuit through the transformer, it is generally replaced by a constant current generator and a voltage signal generator when testing or detecting Transformer, input signal to the electronic signal board, manually test various parameters and ...