CN201359978Y - Residual current circuit breaker with countdown and automatic reclosing functions - Google Patents
Residual current circuit breaker with countdown and automatic reclosing functions Download PDFInfo
- Publication number
- CN201359978Y CN201359978Y CNU2009200357225U CN200920035722U CN201359978Y CN 201359978 Y CN201359978 Y CN 201359978Y CN U2009200357225 U CNU2009200357225 U CN U2009200357225U CN 200920035722 U CN200920035722 U CN 200920035722U CN 201359978 Y CN201359978 Y CN 201359978Y
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- China
- Prior art keywords
- circuit breaker
- residual current
- current circuit
- microprocessor
- buzzer
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- Expired - Fee Related
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Abstract
The utility model discloses a residual current circuit breaker with countdown and automatic reclosing functions for low-voltage electrical equipment, wherein, a leakage detection circuit and an actuating mechanism action circuit are arranged in the residual current circuit breaker, an electric actuating mechanism is fixed on the outer seal cover of the residual current circuit breaker, a controller is fixed on the electric actuating mechanism, a slide block and an electric motor are mounted on the electric actuating mechanism, the slide block is clamped on a handle on the residual current circuit breaker, the electric motor is connected to an operating handle on the residual current circuit breaker through a gear transmission mechanism, a microprocessor, a button switch and a buzzer are arranged on the controller, and the microprocessor is electrically connected with the button switch, a buzzer circuit and a light emitting diode respectively. Due to the clock mode, the microprocessor can be programmed to start countdown immediately after the residual current circuit breaker trips, and seconds later, enables sound to alert maintenance personnel to taking care of personal safety. When circuit fault occurs, the residual current circuit breaker automatically trips and then alerts the circuit breaker to automatically closing to enable the circuit to resume power supply in a while.
Description
Technical field
The utility model relates to low voltage electrical equipment, relates in particular to the residual current circuit breaker that is applied in the low voltage electrical equipment, is mainly used in the earth leakage protective of main line in the rural power grids.
Background technology
At present, because the residual current circuit breaker of band automatic reclosing function is in the running of whole reclosing, fully according to the predefined degree operation of intelligent controller, be subjected to the factor of man's activity less, therefore, when circuit is powered again, personal safety for the maintainer, need to give in advance electrician's perception acoustically, remind them countdown closes to an end, circuit restores electricity.
Summary of the invention
The purpose of this utility model is: when countdown in tens seconds closes to an end, when residual current circuit breaker was closed a floodgate automatically again, buzzer gave the alarm, and reminded line maintenance personnel or electrician's circuit to be about to restore electricity, and noted personal safety.
The technical solution adopted in the utility model is: residual current circuit breaker inside has electric-leakage detection circuit and actuator's actuating circuit, and motor-operating mechanism is fixed on the outer seal of residual current circuit breaker, and controller is fixed on the motor-operating mechanism; Slide block and motor are installed on motor-operating mechanism, slide block is stuck on the handle on the residual current circuit breaker, motor is by the operating grip on the gear drive connection residual current circuit breaker, microprocessor, start button switch, trip button switch and buzzer are set on controller, and microprocessor is electrically connected push-button switch, buzzer circuit and light-emitting diode respectively.
The beneficial effects of the utility model are:
1, adopts the time clock feature of microprocessor on the intelligent controller,, make it after the residual current circuit breaker tripping operation, promptly begin countdown in tens seconds by programming, when also remaining last 5 seconds, connect the buzzer current supply circuit, allow its per second ring once, note personal safety by sound prompting maintainer or electrician.
2, in circuit, break down, after the residual current circuit breaker automatic trip, remind user's circuit breaker to be about to automatic closing, recover line powering.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a perspective view of the present utility model.
Fig. 2 is the exploded perspective schematic diagram of Fig. 1.
Fig. 3 is the peripheral connection diagram of microprocessor 12 among Fig. 2.
Among the figure: 1. residual current circuit breaker; 2. motor-operating mechanism; 3. controller; 4. handle; 5. operating grip; 6. notch; 7. slide block; 8. hole; 9. hole; 10. support; 11. motor; 12. microprocessor; 13. power lights; 14. the operating position of motor-operating mechanism 2; 15. buzzer.
Embodiment
Form by residual current circuit breaker 1, motor-operating mechanism 2 and controller 3 as Fig. 1 the utility model.Wherein residual current circuit breaker 1 inside comprises electric-leakage detection circuit and actuator's actuating circuit, and electric-leakage detection circuit comprises zero sequence current mutual inductor, and zero sequence current mutual inductor is used for leakage current signal is sampled.Motor-operating mechanism 2 is fixed on the outer seal of residual current circuit breaker 1, and controller 3 is fixed on the motor-operating mechanism 2.
As Fig. 2, on residual current circuit breaker 1, be provided with handle 4, operating grip 5 and notch 6.On motor-operating mechanism 2, be provided with slide block 7, hole 8, support 10 and motor 11, wherein, slide block 7 is the bending structure, slide block 7 is stuck on the handle 4 on the residual current circuit breaker 1, can come the handle 4 on the back operations residual current circuit breaker 1, to reach to residual current circuit breaker 1 separating brake, combined floodgate, operating function such as button again.Motor 11 is by the operating grip 5 on the gear drive connection residual current circuit breaker 1.
As Fig. 1-3, microprocessor 12 is installed on the controller 3, and microprocessor 12 connects electrically operated institution actuating circuit, electric-leakage detection circuit and actuator's actuating circuit of motor 11 respectively.Controller 3 as key control unit, is handled the actuator of electric leakage signal, control motor-operating mechanism 2 and residual current circuit breaker 1 inside by microprocessor 12.Actuating mechanism circuit receives the signal of telecommunication of self-controller 3, promotes residual current circuit breaker 1 tripping operation by it.On controller 3, be provided with start button switch S 2, trip button switch S 3 and buzzer 15 also are set, microprocessor 12 is electrically connected start button switch S 2, trip button switch S 3, buzzer 15 circuit and tripping operation LED 3 and electric leakage LED 4 respectively.When residual current circuit breaker 1 major loop disconnected, LED 3 was lighted immediately, was used to refer to residual current circuit breaker 1 and was in off-state; When zero sequence current mutual inductor detects when having leak current fault to take place in the major loop, LED 4 is lighted immediately, is used to refer to the leak current fault that occurs in the circuit.
Zero sequence current mutual inductor is used for leakage current signal is sampled, and through the notch 6 on residual current circuit breaker 1 outer seal signal of telecommunication is passed to controller 3 by lead.Motor-operating mechanism 2 is fixed on residual current circuit breaker 1 outer seal by four holes 8, and controller 3 is fixing with the support 10 on the motor-operating mechanism 2 by four jiaos hole 9.
As Fig. 3, buzzer 15 1 ends and current-limiting resistance R45 are connected on one independently in the circuit of 24V, and microprocessor 12 connects optocoupler U7 by pull-up resistor R44, connects the other end of buzzer 15 behind the optocoupler U7 shunt capacitance C17.Control the break-make in buzzer 15 loops by optocoupler U7, the control port of microprocessor 12 and pull-up resistor R44 and optocoupler U7 is in another different circuit, and microprocessor 12 is by control optocoupler U7, thereby reaches the purpose of control buzzer 15 loop break-makes.
Behind circuit breaker trip, pin push-button switch S2 and S3 simultaneously, processor 12 detects the push-button switch state, enters the maintenance pattern, and the power lights 13 that be installed on the controller 3 this moment extinguishes the stop creepage protection function.Manually operating position 14 places of rotary electric operating mechanism 2 close a floodgate switch, the load circuit energising, and the electrician can overhaul circuit and search the leak current fault circuit.Press startup reset button switch S 2 after electrician's maintenance is fixed a breakdown, microprocessor 12 resets, and residual current circuit breaker 1 divide-shut brake once enters normal operation mode.If maintenance does not have manual reset residual current circuit breaker 1 after fixing a breakdown, then begin internal clocking and automatically restore to normal operation mode after four hours from entering the maintenance pattern via microprocessor 12.
After residual current circuit breaker 1 detects electric leakage signal, send trip signal and make residual current circuit breaker 1 tripping operation, processor 12 inner beginning countdowns simultaneously to the release circuit.If the countdown time is set to 30 seconds, then countdown to the is in the time of 25 seconds, and microprocessor 12 sends pulse signal to buzzer 15 circuit, sends once totally 5 times in one second.Microprocessor 12 stopped to send buzzerphone in the 30th second, sent a switching signal simultaneously to motor 11 circuit, and residual current circuit breaker 1 is closed a floodgate, and load circuit begins power supply.Residual current circuit breaker 1 enters normal operation mode.
Claims (2)
1, a kind of residual current circuit breaker with countdown band automatic reclosing, residual current circuit breaker (1) inside has electric-leakage detection circuit and actuator's actuating circuit, it is characterized in that: motor-operating mechanism (2) is fixed on the outer seal of residual current circuit breaker (1), and controller (3) is fixed on the motor-operating mechanism (2); Go up installation slide block (7) and motor (11) at motor-operating mechanism (2), slide block (7) is stuck on the handle (4) on the residual current circuit breaker (1), motor (11) is by the operating grip (5) on the gear drive connection residual current circuit breaker (1), microprocessor (12), start button switch (S2), trip button switch (S3) and buzzer (15) are set on controller (3), and microprocessor (12) is electrically connected push-button switch (S2, S3), buzzer (15) circuit and light-emitting diode respectively.
2, the residual current circuit breaker with countdown band automatic reclosing according to claim 1, it is characterized in that: described buzzer (15) one ends and current-limiting resistance (R45) are connected on one independently in the circuit of 24V, microprocessor (12) connects optocoupler (U7) by resistance (R44), and optocoupler (U7) shunt capacitance (C17) back connects the other end of buzzer (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200357225U CN201359978Y (en) | 2009-03-18 | 2009-03-18 | Residual current circuit breaker with countdown and automatic reclosing functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200357225U CN201359978Y (en) | 2009-03-18 | 2009-03-18 | Residual current circuit breaker with countdown and automatic reclosing functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201359978Y true CN201359978Y (en) | 2009-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200357225U Expired - Fee Related CN201359978Y (en) | 2009-03-18 | 2009-03-18 | Residual current circuit breaker with countdown and automatic reclosing functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201359978Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610452A (en) * | 2012-04-13 | 2012-07-25 | 江苏辉能电气有限公司 | Leakage circuit breaker |
| GB2488868A (en) * | 2011-03-09 | 2012-09-12 | Eliyahu Engel | Automatic switch reactivation system |
| CN105957781A (en) * | 2016-06-27 | 2016-09-21 | 国网山东省电力公司蓬莱市供电公司 | Electric power circuit breaker |
| CN108807091A (en) * | 2017-04-26 | 2018-11-13 | 海格科技股份有限公司 | Band residual current acting takes control switch automatically |
| CN114814638A (en) * | 2022-03-11 | 2022-07-29 | 燕山大学 | Electric leakage alarm device for electric transmission |
-
2009
- 2009-03-18 CN CNU2009200357225U patent/CN201359978Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2488868A (en) * | 2011-03-09 | 2012-09-12 | Eliyahu Engel | Automatic switch reactivation system |
| CN102610452A (en) * | 2012-04-13 | 2012-07-25 | 江苏辉能电气有限公司 | Leakage circuit breaker |
| CN105957781A (en) * | 2016-06-27 | 2016-09-21 | 国网山东省电力公司蓬莱市供电公司 | Electric power circuit breaker |
| CN105957781B (en) * | 2016-06-27 | 2018-10-26 | 国网山东省电力公司蓬莱市供电公司 | A kind of power circuit breaker |
| CN108807091A (en) * | 2017-04-26 | 2018-11-13 | 海格科技股份有限公司 | Band residual current acting takes control switch automatically |
| CN108807091B (en) * | 2017-04-26 | 2024-05-03 | 海格科技股份有限公司 | Automatic charge control switch with residual current action |
| CN114814638A (en) * | 2022-03-11 | 2022-07-29 | 燕山大学 | Electric leakage alarm device for electric transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20170318 |