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Intelligent leakage circuit breaker

A leakage circuit breaker and circuit technology, applied in the direction of circuit devices, emergency protection circuit devices, electrical components, etc., can solve the problems of failure to protect, electric shock first and then protection

Inactive Publication Date: 2009-10-28
钟汝祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Another object of the present invention is to provide an intelligent leakage circuit breaker with innovative non-shock protection intelligence and early protection functions, as a remedy for existing leakage circuit breakers around the world that have electric faults such as ungrounded circuits in controlled circuits. Defects to Protect or Not to Protect

Method used

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Examples

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Effect test

Embodiment 1

[0032] This embodiment is a three-phase electronic intelligent leakage circuit breaker (five wires: L1+L2+L3+N+PE) whose electrical principle is as follows Figure 4 shown.

[0033] The structural composition of this embodiment is as follows: it is composed of a digital logic microcontroller A, a fault sensing circuit B, an electromagnetic tripping circuit C, a low-voltage power supply circuit D, an earth wire circuit PE, and accessories F.

[0034] The circuit composition and connection of this embodiment are as follows:

[0035] (1). The low-voltage power supply circuit D is composed of step-down capacitor C1, filter capacitor C2, diode D1, diode D2, voltage regulator tube Dz, etc.; one end of C1 is connected to the phase line L3d end, and the other end of C1 is connected to the positive pole of D1 and the negative pole of D2 Common parallel connection; D1 negative pole, C2 positive pole, and Dz negative pole are parallelly connected to form a low-voltage power supply V+; D...

Embodiment 2

[0055] This embodiment is a single-phase electronic intelligent leakage circuit breaker (three-wire: L+N+PE), its electrical principle is as follows Figure 5 shown.

[0056] The structural composition of this embodiment is as follows: it is composed of a digital logic microcontroller A, a fault sensing circuit B, an electromagnetic tripping circuit C, a low-voltage power supply circuit D, an earth wire circuit PE, and accessories F.

[0057] The circuit composition and connection of this embodiment are as follows:

[0058] (1). The low-voltage power supply circuit D is composed of step-down capacitor C1, filter capacitor C2, diode D1, diode D2, and voltage regulator tube Dz; one end of C1 is connected to the phase line Lc end, and the other end of C1 is in common with the positive pole of D1 and the negative pole of D2. and connected in parallel; the negative pole of D1 is connected in parallel with the positive pole of C2 and the negative pole of Dz to form a low-voltage po...

Embodiment 3

[0070] This embodiment is a single-phase electronic intelligent leakage circuit breaker (three-wire: L+N+PE), its electrical principle is as follows Figure 6 shown.

[0071] The structure of this embodiment consists of the following:

[0072] It is composed of digital logic microcontroller A, fault sensing circuit B, electromagnetic tripping circuit C, low-voltage power supply circuit D, ground wire circuit PE, accessories F, etc.

[0073] The circuit composition and connection of this embodiment are as follows:

[0074] (1). The low-voltage power supply circuit D is composed of step-down capacitor C1, filter capacitor C2, diode D1, diode D2, voltage regulator tube Dz, etc.; one end of C1 is connected to the phase line Lc end, and the other end of C1 is connected to the positive pole of D1 and the negative pole of D2 Common parallel connection; D1 negative pole, C2 positive pole, and Dz negative pole are parallelly connected to form a low-voltage power supply V+; D2 positiv...

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Abstract

The intelligent leakage circuit breaker is mainly composed of: digital logic microcontroller A, fault sensing circuit B, electromagnetic trip circuit C, low-voltage power circuit D, ground circuit PE, accessories F, etc. Using digital logic microcontroller control, with leakage protection function, it also innovates the failure of ungrounded wire, live ground wire, live neutral wire, neutral wire and phase wire, and single-phase misconnection and two-phase faults in the controlled circuit. The intelligent and advanced protection function of non-electric shock protection can fundamentally eliminate electric shock and electrical fire between people. The invention has little power consumption, low cost and volume no larger than the existing leakage circuit breaker, and is a replacement product of the existing leakage circuit breaker.

Description

technical field [0001] The invention relates to an intelligent leakage circuit breaker, especially one controlled by a digital logic microcontroller, which has leakage protection functions, overcurrent protection functions, short circuit protection functions, etc. wire" (loose and broken failure), "ground wire electrified", "neutral wire electrified", "neutral wire and phase wire misconnected" and "single phase misconnected two phases" (overvoltage), etc. Electric faults such as personal electric shock and electrical fire are equipped with non-electric shock protection intelligence and advanced protection functions, which can fundamentally eliminate the intelligent leakage circuit breaker of personal electric shock and electrical fire. The invention has little power consumption, a slightly higher manufacturing cost, and a volume not larger than the same type of existing leakage circuit breakers in the world. Background technique [0002] The world's existing leakage circuit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H3/00H02H3/32H02H3/14H02H3/08
CPCH02H5/105H02H11/001
Inventor 钟汝祥
Owner 钟汝祥
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