Single-phase power supply rapid circuit breaker protection system
A rapid disconnection and protection system technology, which is applied in the direction of automatic disconnection emergency protection devices, circuit devices, emergency protection circuit devices, etc., can solve problems such as electric injuries, reduce spark generation, increase speed, and reduce current continuous the effect of time
Active Publication Date: 2022-04-19
华邦创科(惠州市)智能科技有限公司
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Problems solved by technology
However, when the human body gets an electric shock, if the leakage value is lower than 30mA, the leakage protector will not operate, and the person will still be injured by the electric shock.
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[0033] The embodiment of the present application discloses a single-phase power supply rapid circuit breaker protection system, which quickly detects and cuts off the circuit when the human body touches the live wire or when the neutral wire touches the live wire, and reduces the current flowing into the human body from the live wire to the safe range of the human body In order to realize the protection of the human body, reduce the current duration of the short circuit of the zero live wire, so that it cannot form sparks, so as to avoid the fire caused by the short circuit of the electrical appliance.
[0034] see figure 1 , a single-phase power supply rapid circuit breaker protection system, including: Hall sensor module 100, IGBT switch module 200, signal detection module 300 and control module 400,
[0035] The input end of the Hall sensing module is used to connect the neutral line and live line of the AC mains, and the output end of the Hall sensing module is electricall...
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The invention relates to a single-phase power supply rapid circuit breaker protection system comprising: a Hall sensor module, an IGBT switch module, a signal detection module and a control module, the Hall sensor module is used to connect to alternating current and deliver the current to the IGBT switch module , in the signal detection module; the signal detection module is used to detect the current signal of the Hall sensor module, and if there is a short circuit, it is transmitted to the IGBT switch module and the control module; the IGBT switch module is used to receive the driving signal of the IGBT switch module to realize fast shutdown; the control module is used to receive the detection signal of the signal detection module. This application quickly detects and cuts off the circuit when the human body touches the live wire or when the neutral wire touches the live wire, and reduces the current flowing into the human body from the live wire to the safe range of the human body, so as to protect the human body and reduce the short-circuit current of the zero live wire Duration, so that it can not form a spark, so as to avoid the fire caused by electrical short circuit.
Description
technical field [0001] The invention relates to the field of short-circuit protection switches, in particular to a single-phase power supply rapid circuit breaker protection system. Background technique [0002] In order to prevent people from getting an electric shock, there is an isolation transformer for the power line entering the house, and there is no live wire or neutral wire for the power line entering the home. In this case, it is no problem to hold a neutral wire in one's hand, because the person himself stands on the ground, and the voltage between the neutral wire and the earth is almost zero under the condition of good contact, which will not cause harm to the human body, but if the human body If you touch the live wire, you will get an electric shock. Now it is required to cut off the power supply immediately once someone touches the live wire or the zero live wire is short-circuited. [0003] At present, the existing technology is protected by leakage protec...
Claims
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IPC IPC(8): H02H3/32H02H5/12
CPCH02H3/32H02H5/12
Inventor 桂斌李名银刘震张友华
Owner 华邦创科(惠州市)智能科技有限公司