CN212649190U - Phase selection switching-on and switching-off circuit and device - Google Patents
Phase selection switching-on and switching-off circuit and device Download PDFInfo
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- CN212649190U CN212649190U CN202021170372.6U CN202021170372U CN212649190U CN 212649190 U CN212649190 U CN 212649190U CN 202021170372 U CN202021170372 U CN 202021170372U CN 212649190 U CN212649190 U CN 212649190U
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Abstract
The utility model provides a select looks divide-shut brake circuit and device, select looks divide-shut brake circuit includes charging circuit, pressurize circuit, power module, select looks divide-shut brake actuating circuit and select looks divide-shut brake control circuit, charging circuit and pressurize circuit all trun into the alternating current into the direct current, charging circuit and pressurize circuit are not simultaneously connected with power module, power module provides electric support for selecting looks divide-shut brake actuating circuit and select looks divide-shut brake control circuit, select looks divide-shut brake control circuit is controlled by the singlechip. The utility model discloses a set up charging circuit, pressurize circuit and trun into the alternating current to the direct current through charging circuit and pressurize circuit and be convenient for power module's quick charge and voltage holding to still set up big or small current switching circuit and successively can also prolong power module's life when charging with improvement charge efficiency to power module with the mode that conveniently charges with heavy current and little current charge between charging circuit and power module.
Description
Technical Field
The utility model relates to a phase selection divide-shut brake circuit and device is applicable to the phase selection combined floodgate test of high-low voltage electromechanical product.
Background
The phase selection switching-on and switching-off technology (CS for short) is used as the most direct and effective solution for reducing the transient voltage and the inrush current of the action of the circuit breaker, and has intuitive control effect and obvious economic benefit.
The phase selection closing device is used as one of main secondary equipment in a high-voltage alternating current and direct current power transmission and distribution system, and plays an important role in normal and safe operation of the system.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a first aim at to the not enough of existence among the prior art, provides a phase selection closing device.
To this end, the above object of the present invention is achieved by the following technical solutions:
the utility model provides a select looks divide-shut brake circuit which characterized in that: the phase selection opening and closing circuit comprises a charging circuit, a pressure maintaining circuit, a power supply module, a phase selection opening and closing execution circuit and a phase selection opening and closing control circuit, alternating current is converted into direct current by the charging circuit and the pressure maintaining circuit, the charging circuit and the pressure maintaining circuit are not connected with the power supply module at the same time, the power supply module provides electric power support for the phase selection opening and closing execution circuit and the phase selection opening and closing control circuit, and the phase selection opening and closing control circuit is controlled by a single chip microcomputer.
When adopting above-mentioned technical scheme, the utility model discloses can also adopt or make up and adopt following further technical scheme:
as the utility model discloses a preferred technical scheme: and the charging circuit and the pressure maintaining circuit are internally provided with an AC-DC rectifier bridge circuit and a charging capacitor, and the voltage capacity of the charging capacitor in the charging circuit is greater than that of the charging capacitor in the pressure maintaining circuit.
As the utility model discloses a preferred technical scheme: the charging circuit is further provided with a large current switching circuit and a small current switching circuit, the input end of the large current switching circuit is connected with the output end of the charging circuit, and the output end of the large current switching circuit and the output end of the power supply module are provided with a first electromagnetic switch for switching connection or disconnection between the large current switching circuit and the power supply module.
As the utility model discloses a preferred technical scheme: and a diode is arranged between the pressure maintaining circuit and the power supply module.
As the utility model discloses a preferred technical scheme: and the phase selection switching-on and switching-off control circuit and the power supply module are provided with diodes.
As the utility model discloses a preferred technical scheme: the phase selection opening and closing control circuit comprises a thyristor and a second electromagnetic switch so as to switch the connection or disconnection between the thyristor and the phase selection opening and closing execution circuit.
The utility model discloses it is still another aim at, to the not enough of existence among the prior art, provide a phase selection closing device.
To this end, the above object of the present invention is achieved by the following technical solutions:
the utility model provides a select looks closing device which characterized in that: the phase selection switching-on device comprises three phase selection switching-on and switching-off circuits and a phase selection switch, wherein the phase selection switching-on and switching-off circuits are as described above, an execution circuit of each phase selection switching-on and switching-off circuit is connected with the phase selection switch, and thyristors in the phase selection switching-on and switching-off circuits are controlled by a single chip microcomputer.
When adopting above-mentioned technical scheme, the utility model discloses can also adopt or make up and adopt following further technical scheme:
as the utility model discloses a preferred technical scheme: the phase selection switch consists of a three-phase vacuum contactor.
As the utility model discloses a preferred technical scheme: the phase selection switching-on device is also connected with an upper computer, and the upper computer is used for remotely controlling the phase selection switching-on device.
The utility model provides a phase selection divide-shut brake circuit and device, through setting up charging circuit, pressurize circuit and change alternating current into direct current through charging circuit and pressurize circuit and be convenient for power module's quick charge and voltage holding, and still set up big or small current switching circuit between charging circuit and power module in order to conveniently charge the power module with the mode of heavy current charging and little current charging successively in order to improve charging efficiency and can also prolong power module's life; in addition, the thyristor is connected with the singlechip, and the switching of the phase selection switch is controlled by a control circuit where the thyristor is located, so that the switching precision of the phase selection switch is greatly improved; the phase selection switch adopts a vacuum contactor, and has the advantages of simple structure, high electricity service life times, strong overload capacity, high reliability, long mechanical life and electricity service life times; the phase selection switching-on device has a local operation function, and is connected with an upper computer, so that the effect of remotely switching on and off can be realized.
Drawings
Fig. 1 is a diagram of the phase selection switching-on/off circuit provided by the present invention.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
A phase selection switch-on device comprises three phase selection switch-on and switch-off circuits and phase selection switches, wherein an execution circuit of each phase selection switch-on and switch-off circuit is connected with the phase selection switches, thyristors in the phase selection switch-on and switch-off circuits are controlled by a single chip microcomputer, each phase selection switch-on and switch-off circuit corresponds to one option switch, and the three phase selection switch-on and switch-off circuits correspond to the three phase selection switches.
The phase selection switch consists of a three-phase vacuum contactor.
The phase selection closing device is also connected with an upper computer, and the upper computer is used for remotely controlling the phase selection closing device.
The phase selection switching-on and switching-off circuit comprises a charging circuit 1, a pressure maintaining circuit 2, a power supply module 3, a phase selection switching-on and switching-off execution circuit 4 and a phase selection switching-on and switching-off control circuit 5, alternating current is converted into direct current by the charging circuit 1 and the pressure maintaining circuit 2, the charging circuit and the pressure maintaining circuit 2 are not connected with the power supply module 3 at the same time, the power supply module 3 provides electric power support for the phase selection switching-on and switching-off execution circuit 4 and the phase selection switching-on and switching-off control circuit 5, and J52 and J51 of the phase selection switching-on and switching-off control circuit 5 are; the charging circuit 1 and the pressure maintaining circuit 2 are both connected with an external alternating current power supply; only part of the phase selection switching-on and switching-off execution circuit 4 is shown in the figure, and the phase selection switching-on and switching-off execution circuit 4 is a conventional circuit, and those skilled in the art should understand that the detailed description is not provided here.
An AC-DC rectifier bridge circuit and a charging capacitor are arranged in the charging circuit 1 and the pressure maintaining circuit 2, and the voltage capacity of the charging capacitor in the charging circuit 1 is larger than that of the charging capacitor in the pressure maintaining circuit 2; in the figure, an AC-DC rectifier bridge circuit D52 and a capacitor C55 belong to the voltage holding circuit 2, and an AC-DC rectifier bridge circuit D51 and capacitors C51 and C52 belong to the charging circuit 1.
The charging circuit 1 is also provided with a large current and small current switching circuit 6, the input end of the large current and small current switching circuit 6 is connected with the output end of the charging circuit 1, and the output end of the large current and small current switching circuit 6 and the input end of the power module 3 are provided with a first electromagnetic switch K53 for switching the connection or disconnection between the two; in this embodiment: the circuit comprises a plurality of parallel resistors, and an electromagnetic switch K52 is connected in parallel to switch the current size mode.
A diode D53 is arranged between the pressure maintaining circuit 2 and the power module 3. The phase selection switching-on and switching-off control circuit 5 and the power module 3 are provided with diodes D59.
The phase selection switching-on and switching-off control circuit 5 includes a thyristor Q51 and a second electromagnetic switch K51 to switch the connection or disconnection between the thyristor Q51 and the phase selection switching-on and switching-off execution circuit 4.
The above detailed description is provided for explaining the present invention, and is only a preferred embodiment of the present invention, but not for limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made by the present invention are within the scope of the present invention.
Claims (9)
1. The utility model provides a select looks divide-shut brake circuit which characterized in that: the phase selection opening and closing circuit comprises a charging circuit, a pressure maintaining circuit, a power supply module, a phase selection opening and closing execution circuit and a phase selection opening and closing control circuit, alternating current is converted into direct current by the charging circuit and the pressure maintaining circuit, the charging circuit and the pressure maintaining circuit are not connected with the power supply module at the same time, the power supply module provides electric power support for the phase selection opening and closing execution circuit and the phase selection opening and closing control circuit, and the phase selection opening and closing control circuit is controlled by a single chip microcomputer.
2. The phase selection closing and opening circuit according to claim 1, characterized in that: and the charging circuit and the pressure maintaining circuit are internally provided with an AC-DC rectifier bridge circuit and a charging capacitor, and the voltage capacity of the charging capacitor in the charging circuit is greater than that of the charging capacitor in the pressure maintaining circuit.
3. The phase selection closing and opening circuit according to claim 2, wherein: the charging circuit is further provided with a large current switching circuit and a small current switching circuit, the input end of the large current switching circuit is connected with the output end of the charging circuit, and the output end of the large current switching circuit and the output end of the power supply module are provided with a first electromagnetic switch for switching connection or disconnection between the large current switching circuit and the power supply module.
4. The phase selection closing and opening circuit according to claim 1, characterized in that: and a diode is arranged between the pressure maintaining circuit and the power supply module.
5. The phase selection closing and opening circuit according to claim 1, characterized in that: and the phase selection switching-on and switching-off control circuit and the power supply module are provided with diodes.
6. The phase selection closing and opening circuit according to claim 1, characterized in that: the phase selection opening and closing control circuit comprises a thyristor and a second electromagnetic switch so as to switch the connection or disconnection between the thyristor and the phase selection opening and closing execution circuit.
7. The utility model provides a select looks closing device which characterized in that: the phase selection closing device comprises three phase selection opening and closing circuits and a phase selection switch according to any one of claims 1 to 6, an execution circuit of the phase selection opening and closing circuit is connected with the phase selection switch, and a thyristor in the phase selection opening and closing circuit is controlled by a single chip microcomputer.
8. The phase selection closing device according to claim 7, wherein: the phase selection switch consists of a three-phase vacuum contactor.
9. The phase selection closing device according to claim 7, wherein: the phase selection switching-on device is also connected with an upper computer, and the upper computer is used for remotely controlling the phase selection switching-on device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021170372.6U CN212649190U (en) | 2020-06-22 | 2020-06-22 | Phase selection switching-on and switching-off circuit and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021170372.6U CN212649190U (en) | 2020-06-22 | 2020-06-22 | Phase selection switching-on and switching-off circuit and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212649190U true CN212649190U (en) | 2021-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021170372.6U Active CN212649190U (en) | 2020-06-22 | 2020-06-22 | Phase selection switching-on and switching-off circuit and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212649190U (en) |
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2020
- 2020-06-22 CN CN202021170372.6U patent/CN212649190U/en active Active
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