Multifunctional release
A release, multi-functional technology, applied in the direction of protection switch operation/release mechanism, etc., can solve the problem of inconvenient power restoration, and achieve the effect of strong holding force and simple circuit mechanism
Pending Publication Date: 2021-09-17
江阴市懿泓电气有限公司
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- Application Information
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Problems solved by technology
When the upstream line resumes power supply, the circuit breaker at this level cannot be closed because the closing electromagnet does not operate, which leads to inconvenience in the process of restoring power supply
Method used
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Embodiment Construction
[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0031] Such as figure 1 As shown, a multi-functional release, the technical specifications comply with GB14048.1-2012, GB14048.2-2012 includes an EMC filter circuit for bidirectional suppression of interference signals from the power grid and internal circuits, and converts AC voltage into pulsation DC voltage rectification circuit, energy storage circuit, energy circuit, power supply circuit, sampling circuit, MCU circuit, drive circuit, mode and delay setting circuit, undervoltage electromagnet, closing electromagnet and output contacts, the EMC filter The circuit is connected with the rectification circuit, the rectification circuit is connected with the energy storage circuit and the energy circuit, the energy circuit is connected with the electric MCU circuit and the magnet, the sampling circuit is connected with the rectification circui...
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The invention discloses a multifunctional release comprising an EMC (Electro Magnetic Compatibility) filter circuit, a rectifying circuit, an energy storage circuit, an energy circuit, a power supply circuit, a sampling circuit, an MCU (Microprogrammed Control Unit) circuit, a driving circuit, a mode and delay setting circuit, an under-voltage electromagnet, a closed electromagnet and a contact output, wherein the EMC filter circuit is used for bidirectionally inhibiting interference signals generated by a power grid and an internal circuit; the rectifying circuit is used for converting alternating-current voltage into pulsating direct-current voltage. The multifunctional release can be an independent under-voltage instantaneous / delayed under-voltage release or a zero-voltage instantaneous / delayed under-voltage release, the electromagnet is closed through joint control, great convenience is provided for automatic recovery of power supply in an unattended occasion, and potential functions of the multifunctional release are further expanded through contact output.
Description
technical field [0001] The invention relates to the field of low-voltage electrical appliances, in particular to a multifunctional release. Background technique [0002] The undervoltage release is an accessory (component) that monitors whether the line voltage is "undervoltage" inside the circuit breaker and performs related actions. According to the provisions of GB14148.1-2012 "General Rules for Low Voltage Switchgear and Control Equipment", when the power supply voltage drops , or even slowly drop to the range of 70% to 30% of the rated operating voltage, the undervoltage release should operate. When the power supply voltage is equal to 30% of the rated operating voltage of the release, the undervoltage release will It should be able to prevent the circuit breaker from being fully closed, the release coil is de-energized, and the movable armature in the coil has a return spring to push out—the locking mechanism is pushed out to realize the tripping and opening of the cir...
Claims
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IPC IPC(8): H01H71/12H01H71/68
CPCH01H71/12H01H71/68
Inventor 葛纹懿周超
Owner 江阴市懿泓电气有限公司