CN214281228U - Phase-shift protection control system of single-phase alternating-current power supply - Google Patents
Phase-shift protection control system of single-phase alternating-current power supply Download PDFInfo
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- CN214281228U CN214281228U CN202023090108.4U CN202023090108U CN214281228U CN 214281228 U CN214281228 U CN 214281228U CN 202023090108 U CN202023090108 U CN 202023090108U CN 214281228 U CN214281228 U CN 214281228U
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Abstract
The utility model provides a phase shift protection control system of single phase alternating current power supply, include primary circuit and connection the control circuit of primary circuit, wherein, primary circuit includes input circuit, output circuit and first to fourth GTO, input circuit's phase line L1 connects the A utmost point of first GTO and the A utmost point common terminal of fourth GTO, input circuit's zero line N1 connects the A utmost point of second GTO and the A utmost point common terminal of third GTO, the K utmost point of first GTO and the K utmost point common terminal of second GTO connect output circuit's phase line L2, the K utmost point of third GTO and the K utmost point common terminal of fourth GTO connect output circuit's zero line N2. The utility model discloses a single phase alternating current power supply's phase shift protection control system detects output circuit when earth leakage current, and the drive is first to fourth GTO switches, makes the output circuit phase line shift, can effectively protect the power consumption safety.
Description
Technical Field
The utility model relates to an electricity technical field is used safely, especially relates to a single phase AC power supply's protection control system that moves mutually.
Background
In a power supply system, when important electric equipment runs, if a line with a fault of non-electric equipment is grounded or a person is subjected to single-phase electric shock, the line can be directly tripped, and for equipment which cannot be powered off or needs to be shut down according to a flow when power failure occurs, the equipment can be damaged due to direct tripping, so that the safety of the personnel is protected, and the safety of the equipment cannot be protected. Therefore, a phase shift protection control system must be designed to ensure safety when protecting personnel from electric shock, and ensure that a circuit is not powered off and electrical equipment normally runs.
SUMMERY OF THE UTILITY MODEL
In order to solve the prior art not enough, the utility model discloses a single phase alternating current power supply's protection control system that moves, include primary circuit and connection primary circuit's control circuit, wherein, primary circuit includes input circuit, output circuit and first to fourth GTO, input circuit's phase line L1 connects the A utmost point of first GTO and the A utmost point common terminal of fourth GTO, input circuit's zero line N1 connects the A utmost point of second GTO and the A utmost point common terminal of third GTO, the K utmost point of first GTO and the K utmost point common terminal of second GTO connect output circuit's phase line L2, the K utmost point of third GTO and the K utmost point common terminal of fourth GTO connect output circuit's zero line N2.
Further, the control circuit comprises a line detection unit, a sampling amplification unit, a processor unit and a driving control unit, wherein the line detection unit is provided with a Hall sensor, the Hall sensor is used for collecting a floor drain current signal of the output circuit, the sampling amplification unit receives an amplified current signal obtained by amplifying, filtering and rectifying a leakage current signal and transmits the amplified current signal to the processor unit, the processor unit processes the received amplified current signal and sends a protection control signal to the driving control unit, and the driving control unit sends the protection control signal to G poles of the first GTO to the fourth GTO.
Further, the control circuit further comprises a touch screen connected with the processor unit, and the touch screen comprises a manual switching mode and an automatic switching mode.
Further, the first GTO, the second GTO, the third GTO, and the fourth GTO are all turn-off thyristors.
Further, the processor unit is a single chip microcomputer chip.
Further, the voltage of the input circuit and the output circuit is 220V of alternating current.
Implement the utility model provides a single phase alternating current power supply's protection control system that moves phase has following profitable technological effect:
the utility model discloses a single phase alternating current power supply's phase shift protection control system detects output circuit when earth leakage current, and the drive is first to fourth GTO switches, makes output circuit phase line shift, under the circuit not the outage condition, effective protection power consumption safety.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic diagram of a primary circuit structure of a phase shift protection control system of a single-phase ac power supply according to an embodiment of the present invention;
fig. 2 is a functional block diagram of a phase shift protection control system for a single-phase ac power supply according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 and 2, an embodiment of the present invention provides a phase shift protection control system for a single-phase ac power supply, including a primary circuit 1 and a control circuit 2 connected to the primary circuit 1, wherein the primary circuit 1 includes an input circuit 10, an output circuit 20 and first to fourth GTOs, a phase line L1 of the input circuit 10 is connected to an a pole of a first GTO30 and an a pole common end of the fourth GTO60, a zero line N1 of the input circuit 10 is connected to an a pole of a second GTO40 and an a pole common end of a third GTO50, a K pole of the first GTO30 and a K pole common end of the second GTO40 are connected to a phase line L2 of the output circuit 20, and a K pole of the third GTO50 and a K pole common end of the fourth GTO60 are connected to a zero line N2 of the output circuit 20.
The control circuit 2 includes a line detection unit 70, a sampling amplification unit 80, a processor unit 90 and a driving control unit 100, the line detection unit 70 has a hall sensor, the hall sensor is used for collecting a signal of the output circuit 20 to the ground leakage current, the sampling amplification unit 80 receives an amplified current signal of the leakage current signal after amplification, filtering and rectification and transmits the amplified current signal to the processor unit 90, the processor unit 90 processes the received amplified current signal and transmits a protection control signal to the driving control unit 100, and the driving control unit 100 transmits the protection control signal to G poles of the first GTO to the fourth GTO.
The control circuit 2 further comprises a touch screen 110 connected to the processor unit 90, wherein the touch screen 110 comprises a manual switching mode and an automatic switching mode.
The first GTO30, the second GTO40, the third GTO50, and the fourth GTO60 are all turn-off thyristors.
The processor unit 90 is a single chip.
The voltage of the input circuit 10 and the output circuit 20 is 220V ac.
Implement the utility model provides a single phase alternating current power supply's protection control system that moves phase has following profitable technological effect:
the utility model discloses a single phase alternating current power supply's phase shift protection control system detects output circuit when earth leakage current, and the drive is first to fourth GTO switches, makes output circuit phase line shift, under the circuit not the outage condition, effective protection power consumption safety.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The phase-shift protection control system of the single-phase alternating-current power supply is characterized by comprising a primary circuit and a control circuit connected with the primary circuit, wherein the primary circuit comprises an input circuit, an output circuit and first to fourth GTOs, a phase line L1 of the input circuit is connected with an A pole of the first GTO and an A pole public end of the fourth GTO, a zero line N1 of the input circuit is connected with an A pole of the second GTO and an A pole public end of the third GTO, a K pole of the first GTO and a K pole public end of the second GTO are connected with a phase line L2 of the output circuit, and a K pole of the third GTO and a K pole public end of the fourth GTO are connected with a zero line N2 of the output circuit.
2. The phase-shift protection control system according to claim 1, wherein the control circuit comprises a line detection unit, a sampling amplification unit, a processor unit and a driving control unit, the line detection unit has a hall sensor, the hall sensor is used for collecting a signal of the output circuit to the ground leakage current, the sampling amplification unit receives an amplified current signal of the leakage current signal after amplification, filtering and rectification and transmits the amplified current signal to the processor unit, the processor unit processes the received amplified current signal and transmits a protection control signal to the driving control unit, and the driving control unit transmits the protection control signal to the G poles of the first GTO to the fourth GTO.
3. The dephasing protection control system of claim 1, wherein the control circuit further comprises a touch screen connected to the processor unit, the touch screen comprising a manual switching mode and an automatic switching mode.
4. The dephasing protection control system of claim 1, wherein the first GTO, the second GTO, the third GTO and the fourth GTO are all turn-off thyristors.
5. The phase-shift protection control system according to claim 2, wherein the processor unit is a single chip.
6. The phase-shift protection control system according to claim 1, wherein the voltage of the input circuit and the output circuit is 220V AC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023090108.4U CN214281228U (en) | 2020-12-18 | 2020-12-18 | Phase-shift protection control system of single-phase alternating-current power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023090108.4U CN214281228U (en) | 2020-12-18 | 2020-12-18 | Phase-shift protection control system of single-phase alternating-current power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214281228U true CN214281228U (en) | 2021-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023090108.4U Active CN214281228U (en) | 2020-12-18 | 2020-12-18 | Phase-shift protection control system of single-phase alternating-current power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214281228U (en) |
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2020
- 2020-12-18 CN CN202023090108.4U patent/CN214281228U/en active Active
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