CN220691061U - Detection device of high-voltage circuit breaker of LF (ladle furnace) electric equipment - Google Patents
Detection device of high-voltage circuit breaker of LF (ladle furnace) electric equipment Download PDFInfo
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- CN220691061U CN220691061U CN202322259629.5U CN202322259629U CN220691061U CN 220691061 U CN220691061 U CN 220691061U CN 202322259629 U CN202322259629 U CN 202322259629U CN 220691061 U CN220691061 U CN 220691061U
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- 238000001514 detection method Methods 0.000 title claims abstract description 179
- 238000009847 ladle furnace Methods 0.000 title abstract description 26
- 238000004146 energy storage Methods 0.000 claims abstract description 68
- 238000003723 Smelting Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004397 blinking Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of electrical equipment of an LF (ladle furnace), in particular to a detection device of a high-voltage circuit breaker of the LF electrical equipment, which comprises: the auxiliary point detection circuit, the power supply detection circuit, the closing detection circuit, the opening detection circuit and the energy storage circuit; the power supply detection circuit, the closing detection circuit, the opening detection circuit and the energy storage circuit are all connected in parallel, and the auxiliary point detection circuit is connected with a detection position in the high-voltage circuit breaker in parallel. The device can rapidly and accurately detect faults of the high-voltage circuit breaker, improves the efficiency of the high-voltage circuit breaker, ensures the smelting generation of the LF furnace, and reduces the smelting loss of the LF furnace.
Description
Technical Field
The utility model relates to the technical field of electrical equipment of an LF (ladle furnace), in particular to a detection device of a high-voltage circuit breaker of the LF electrical equipment.
Background
An electric furnace transformer in the LF furnace electric equipment is used as important equipment for steelmaking production. In smelting, frequent opening and closing operations are often carried out on a high-voltage circuit breaker in LF furnace electrical equipment due to the requirements of a production process and the guarantee of normal operation of an electric furnace transformer. However, in actual production, the high-voltage circuit breaker can have the phenomenon of tripping or closing the gate for various reasons, and the smelting production of the LF furnace is directly influenced. In the existing scheme, a method for detecting abnormal operation of a high-voltage circuit breaker is usually a manual inspection method, so that the detection efficiency of the abnormal operation of the high-voltage circuit breaker is low.
Disclosure of Invention
According to the detection device for the high-voltage circuit breaker of the LF furnace electrical equipment, the technical problem that the detection efficiency of abnormal operation of the high-voltage circuit breaker in the prior art is low is solved, the faults of the high-voltage circuit breaker are detected rapidly and accurately, the efficiency of the high-voltage circuit breaker is improved, the smelting generation of the LF furnace is guaranteed, and the technical effects of loss of LF furnace smelting and the like are achieved.
In a first aspect, an embodiment of the present utility model provides a detection apparatus for a high voltage circuit breaker of an LF furnace electrical apparatus, including: the auxiliary point detection circuit, the power supply detection circuit, the closing detection circuit, the opening detection circuit and the energy storage circuit;
the power supply detection circuit, the closing detection circuit, the opening detection circuit and the energy storage circuit are all connected in parallel, and the auxiliary point detection circuit is connected with a detection position in the high-voltage circuit breaker in parallel.
Preferably, the closing detection circuit includes: the switching-on switch, the switching-on indicator lamp and the switching-on indicator lamp switch; one end of the closing switch is connected with one end lamp of the closing indicator lamp switch, and the other end of the closing switch is connected with one end of a closing coil of the high-voltage circuit breaker; the other end of the closing coil is connected with one end of the closing indicator lamp; and the other end of the closing indicator lamp is connected with the other end of the closing indicator lamp switch.
Preferably, the opening detection circuit includes: a brake-off switch, a brake-off indicator light and a brake-off indicator light switch; one end of the switching-off switch is connected with one end lamp of the switching-off indicator lamp switch, and the other end of the switching-off switch is connected with one end of a switching-off coil of the high-voltage circuit breaker; the other end of the brake separating coil is connected with one end of the brake separating indicator lamp; the other end of the brake-separating indicator lamp is connected with the other end of the brake-separating indicator lamp switch.
Preferably, the tank circuit includes: the energy storage switch, the energy storage indicator lamp and the energy storage indicator lamp switch; one end of the energy storage switch is connected with one end of the energy storage indicator lamp switch, and the other end of the energy storage switch is connected with one end of the energy storage motor of the high-voltage circuit breaker; the other end of the energy storage motor is connected with one end of the energy storage indicator lamp; the other end of the energy storage indicator lamp is connected with the other end of the energy storage indicator lamp switch.
Preferably, the power supply detection circuit includes: a power indicator light; one end of the power indicator lamp is connected with the positive electrode of the power supply, and the other end of the power indicator lamp is connected with the negative electrode of the power supply.
Preferably, the device comprises: and the plug is arranged in the detection device.
Preferably, the auxiliary point detection circuit includes: an auxiliary point detection switch and an auxiliary point indicator lamp; one end of the auxiliary point detection switch is connected with one end of the detection position, and the other end of the auxiliary point detection switch is connected with one end of the auxiliary point indicator lamp; the other end of the detection position is connected with the other end of the auxiliary point indicating lamp.
Preferably, the number of the detection positions is a plurality of the auxiliary point detection circuits, and the detection positions and the auxiliary point detection circuits are in one-to-one correspondence.
Preferably, a plurality of the auxiliary point detection circuits are connected in series.
One or more technical solutions in the embodiments of the present utility model at least have the following technical effects or advantages:
the embodiment of the utility model provides a detection device of a high-voltage circuit breaker of LF furnace electrical equipment, which comprises: the auxiliary point detection circuit, the power supply detection circuit, the closing detection circuit, the opening detection circuit and the energy storage circuit; the power supply detection circuit, the closing detection circuit, the opening detection circuit and the energy storage circuit are all connected in parallel, and the auxiliary point detection circuit is connected with a detection position in the high-voltage circuit breaker in parallel. In the embodiment of the utility model, whether the detection position in the high-voltage circuit breaker operates normally is detected by the auxiliary point detection circuit, whether the power supply of the detection device operates normally is detected by the power supply detection circuit, whether the closing coil of the high-voltage circuit breaker operates normally is detected by the closing detection circuit, whether the opening coil of the high-voltage circuit breaker operates normally is detected by the opening detection circuit, and the energy storage motor of the high-voltage circuit breaker is charged by the energy storage circuit. Therefore, the embodiment of the utility model can rapidly and accurately detect the faults of the high-voltage circuit breaker, improve the efficiency of the high-voltage circuit breaker, ensure the smelting generation of the LF furnace and reduce the smelting loss of the LF furnace.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also throughout the drawings, like reference numerals are used to designate like parts. In the drawings:
fig. 1 shows a schematic circuit configuration of a detection device of a high-voltage circuit breaker of an LF-furnace electrical apparatus in an embodiment of the present utility model.
In the figure, 110-power supply detection circuit, 120-closing detection circuit, 130-opening detection circuit, 140-energy storage circuit, 111-power supply indicator lamp, 121-closing switch, 122-closing indicator lamp, 123-closing indicator lamp switch, 124-closing coil, 131 opening switch, 132 opening indicator lamp, 133-opening indicator lamp switch, 134-opening coil, 141-energy storage switch, 142-energy storage indicator lamp, 143-energy storage indicator lamp switch, 144-energy storage motor.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Example 1
The first embodiment of the present utility model provides a detection apparatus for a high voltage circuit breaker of an LF electric device, as shown in fig. 1, including: an auxiliary point detection circuit, a power supply detection circuit 110, a closing detection circuit 120, a opening detection circuit 130 and a tank circuit 140;
the power supply detection circuit 110, the closing detection circuit 120, the opening detection circuit 130 and the tank circuit 140 are all connected in parallel, and the auxiliary point detection circuit is connected in parallel with a detection position in the high-voltage circuit breaker.
In this embodiment, the auxiliary point detection circuit is used for detecting whether the detection position in the high-voltage circuit breaker operates normally after the detection device is connected with the high-voltage circuit breaker and the detection device is powered on. The detection position is the position of an electronic element (namely an auxiliary point) in the high-voltage circuit breaker, for example, a normally open point for auxiliary electric shock is closed, and the closing state of the high-voltage circuit breaker is reflected.
The power supply detection circuit 110 is used for detecting whether the power supply of the detection device is operating normally after the detection device is powered on.
The closing detection circuit 120 is used for detecting whether the closing coil 124 of the high-voltage circuit breaker is operating normally.
The opening detection circuit 130 is used for detecting whether the opening coil 134 of the high-voltage circuit breaker is operating normally.
The tank circuit 140 is used for detecting whether the detection device charges the tank motor 144 of the high-voltage circuit breaker.
The following describes each detection circuit of the present embodiment in detail with reference to fig. 1:
the detection device of the embodiment further comprises a plug, the plug is arranged in the detection device, and the detection device is connected with the high-voltage circuit breaker through the plug. Preferably, the plug is an aviation plug.
The power supply detection circuit 110 includes: a power indicator 111; the power indicator 111 has one end connected to the positive electrode of the power supply of the detection device and the other end connected to the negative electrode of the power supply of the detection device, so as to ensure that the detection device has powered on. The power indicator 111 is used to indicate whether the power supply of the detection device is operating normally. When the power indicator 111 is normally on after the detection device is powered on, it indicates that the power supply of the detection device is in a normal operation state. If the power indicator 111 is not on or blinks, it indicates that the power of the detection device is not running or is not running normally, and the power of the detection device fails. For example, when the power supply of the detection device is unstable, the power indicator 111 may be irregularly blinking.
The auxiliary point detection circuit includes: an auxiliary point detection switch and an auxiliary point indicator lamp; one end of the auxiliary point detection switch is connected with one end of the detection position, and the other end of the auxiliary point detection switch is connected with one end of the auxiliary point indicator lamp; the other end of the detection position is connected with the other end of the auxiliary point indicating lamp. The number of the detection positions is plural, and the number of the auxiliary point detection circuits is plural, wherein the detection positions and the auxiliary point detection circuits are in one-to-one correspondence. For example, the auxiliary point detection circuit a detects one detection position a, and the auxiliary point detection circuit B detects one detection position B.
And after an auxiliary point detection switch in a certain auxiliary point detection circuit is closed, if an auxiliary point indicator lamp in the auxiliary point detection circuit is normally on, the working principle of the auxiliary point detection circuit indicates that the detection position corresponding to the auxiliary point detection circuit operates normally. If the auxiliary point indicator lamp in the auxiliary point detection circuit is not on or blinks, the detection position corresponding to the auxiliary point detection circuit is not operated, and the electronic element corresponding to the detection position fails.
It should be noted that a plurality of the auxiliary point detection circuits can be connected in series. Therefore, whether the detection position is damaged or not can be judged through the auxiliary point indicator lamp. If the detection position is a normally open point, the auxiliary point indicating lamp corresponding to the detection position is turned on in the opening state of the high-voltage circuit breaker. Each auxiliary point of the high-voltage circuit breaker is used for providing a switch state for automatic control, and the working state of the high-voltage circuit breaker is clearly mastered.
The closing detection circuit 120 includes: a closing switch 121, a closing indicator 122, and a closing indicator switch 123; one end of a closing switch 121 is connected with one end lamp of a closing indicator lamp switch 123, and the other end of the closing switch is connected with one end of a closing coil 124 of the high-voltage circuit breaker; the other end of the closing coil is connected with one end of a closing indicator lamp 122; the other end of the closing indicator 122 is connected to the other end of the closing indicator switch 123. The operation principle of the closing detection circuit 120 is that after the closing switch 121 and the closing indicator switch 123 of the closing detection circuit 120 are closed, if the closing indicator 122 is normally on, it indicates that the closing coil is in an operation state. If the switch-on indicator 122 is not on or blinks, it indicates that the switch-on coil is in an unoperated state, and the switch-on coil fails.
The open-gate detection circuit 130 includes: a brake switch 131, a brake switch indicator 132, and a brake switch indicator 133; one end of the switching-off switch 131 is connected with one end lamp of the switching-off indicator lamp switch 133, and the other end of the switching-off switch is connected with one end of a switching-off coil 134 of the high-voltage circuit breaker; the other end of the brake-separating coil is connected with one end of a brake-separating indicator lamp 132; the other end of the opening indicator light 132 is connected to the other end of the opening indicator light switch 133. The switching-off detection circuit 130 operates on the principle that, after the switching-off switch 131 and the switching-off indicator light switch 133 of the switching-off detection circuit 130 are closed, if the switching-off indicator light 132 is normally on, the switching-off coil is in an operating state. If the brake-off indicator 132 is not on or blinks, it indicates that the brake-off coil is in an unoperated state and the brake-off coil fails.
The tank circuit 140 includes: an energy storage switch 141, an energy storage indicator 142, and an energy storage indicator switch 143; one end of the energy storage switch 141 is connected with one end of the energy storage indicator light switch 143, and the other end is connected with one end of the energy storage motor 144 of the high-voltage circuit breaker; the other end of the energy storage motor 144 is connected with one end of the energy storage indicator light 142; the other end of the energy storage indicator light 142 is connected with the other end of the energy storage indicator light switch 143. The working principle of the energy storage circuit 140 is that after the energy storage switch 141 and the energy storage indicator light switch 143 are closed, if the energy storage indicator light 142 is in a normally-on state, it means that when the energy storage switch 141 is in a closed state, the energy storage switch 141 causes the detection device to charge the energy storage motor 144 of the high-voltage circuit breaker. If the energy storage indicator 142 is in a very bright state, it indicates that the energy storage motor 144 is malfunctioning.
The detection device of the present embodiment is used by observing the state of the power indicator 111 after the detection device is energized by the plug connection to the high-voltage circuit breaker. If the power indicator 111 is in a very bright state, the power indicating the detected state fails. If the power indicator 111 is in a normally-on state, it indicates that the power supply in the detected state has not failed.
After the power indicator 111 is in a normally-on state, the auxiliary point detection switch in each auxiliary point detection circuit is turned on, and the state of each auxiliary point indicator is observed. If a certain auxiliary point indicator lamp is in a very bright state, the fault of the detection position corresponding to the auxiliary point indicator lamp is indicated. If each auxiliary point indicator lamp is in a normally-on state, the fault does not occur in the detection position corresponding to each auxiliary point indicator lamp.
After each auxiliary point indicator lamp is in a normally-on state, the switch-on switch 121 and the switch-on indicator lamp switch 123 in the switch-on detection circuit 120 are closed, and the state of the switch-on indicator lamp 122 is observed. If the switch-on indicator 122 is in a very bright state, it indicates that the switch-on coil of the high-voltage circuit breaker fails. If the switch-on indicator 122 is in a normally-on state, it indicates that the switch-on coil of the high-voltage circuit breaker has not failed.
After the switch-on indicator 122 is in a normally-on state, the switch-on switch 121 and the switch-on indicator switch 123 are turned on, the switch-off switch 131 and the switch-off indicator switch 133 in the switch-off detection circuit 130 are turned on, and the state of the switch-off indicator 132 is observed. If the switching-off indicator lamp 132 is in a very bright state, it indicates that the switching-off coil of the high-voltage circuit breaker fails. If the brake-off indicator 132 is in a normally-on state, it indicates that the brake-off coil is not failed.
After the brake-off indicator lamp 132 is in a normally-on state, the brake-off switch 131 and the brake-off indicator lamp switch 133 are turned on, the energy storage switch 141 and the energy storage indicator lamp switch 143 in the energy storage circuit 140 are turned on, and the state of the energy storage indicator lamp 142 is observed. If the energy storage indicator light 142 is in a very bright state, it indicates that the energy storage motor 144 of the high voltage circuit breaker is malfunctioning. If the energy storage indicator 142 is in a normally-on state, the detection device can charge the energy storage motor 144 normally.
One or more technical solutions in the embodiments of the present utility model at least have the following technical effects or advantages:
the embodiment provides a detection device of a high-voltage circuit breaker of LF stove electrical equipment, it includes: the auxiliary point detection circuit, the power supply detection circuit, the closing detection circuit, the opening detection circuit and the energy storage circuit; the power supply detection circuit, the closing detection circuit, the opening detection circuit and the energy storage circuit are all connected in parallel, and the auxiliary point detection circuit is connected with a detection position in the high-voltage circuit breaker in parallel. In this embodiment, whether the detection position in the high-voltage circuit breaker is normally operated is detected by the auxiliary point detection circuit, whether the power supply of the detection device is normally operated is detected by the power supply detection circuit, whether the closing coil of the high-voltage circuit breaker is normally operated is detected by the closing detection circuit, whether the opening coil of the high-voltage circuit breaker is normally operated is detected by the opening detection circuit, and the energy storage motor of the high-voltage circuit breaker is charged by the energy storage circuit. Therefore, the embodiment can rapidly and accurately detect the faults of the high-voltage circuit breaker, improve the efficiency of the high-voltage circuit breaker, ensure the smelting generation of the LF furnace and reduce the smelting loss of the LF furnace.
While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (9)
1. Detection device of high voltage circuit breaker of LF stove electrical equipment, characterized in that includes: the auxiliary point detection circuit, the power supply detection circuit, the closing detection circuit, the opening detection circuit and the energy storage circuit;
the power supply detection circuit, the closing detection circuit, the opening detection circuit and the energy storage circuit are all connected in parallel, and whether the contact is damaged is displayed by a loop indicator lamp through an auxiliary point of the high-voltage circuit breaker.
2. The apparatus of claim 1, wherein the closing detection circuit comprises: the switching-on switch, the switching-on indicator lamp and the switching-on indicator lamp switch; one end of the closing switch is connected with one end lamp of the closing indicator lamp switch, and the other end of the closing switch is connected with one end of a closing coil of the high-voltage circuit breaker; the other end of the closing coil is connected with one end of the closing indicator lamp; and the other end of the closing indicator lamp is connected with the other end of the closing indicator lamp switch.
3. The apparatus of claim 1, wherein the split gate detection circuit comprises: a brake-off switch, a brake-off indicator light and a brake-off indicator light switch; one end of the switching-off switch is connected with one end lamp of the switching-off indicator lamp switch, and the other end of the switching-off switch is connected with one end of a switching-off coil of the high-voltage circuit breaker; the other end of the brake separating coil is connected with one end of the brake separating indicator lamp; the other end of the brake-separating indicator lamp is connected with the other end of the brake-separating indicator lamp switch.
4. The apparatus of claim 1, wherein the tank circuit comprises: the energy storage switch, the energy storage indicator lamp and the energy storage indicator lamp switch; one end of the energy storage switch is connected with one end of the energy storage indicator lamp switch, and the other end of the energy storage switch is connected with one end of the energy storage motor of the high-voltage circuit breaker; the other end of the energy storage motor is connected with one end of the energy storage indicator lamp; the other end of the energy storage indicator lamp is connected with the other end of the energy storage indicator lamp switch.
5. The apparatus of claim 4, wherein the power detection circuit comprises: a power indicator light; one end of the power indicator lamp is connected with the positive electrode of the power supply, and the other end of the power indicator lamp is connected with the negative electrode of the power supply.
6. The apparatus of claim 1, wherein the apparatus comprises: and the plug is arranged in the detection device.
7. The apparatus of claim 1, wherein the auxiliary point detection circuit comprises: an auxiliary point detection switch and an auxiliary point indicator lamp; one end of the auxiliary point detection switch is connected with one end of the detection position, and the other end of the auxiliary point detection switch is connected with one end of the auxiliary point indicator lamp; the other end of the detection position is connected with the other end of the auxiliary point indicating lamp.
8. The apparatus of claim 1, wherein the number of detection locations is a plurality and the number of auxiliary point detection circuits is a plurality, wherein the detection locations are in one-to-one correspondence with the auxiliary point detection circuits.
9. The apparatus of claim 8, wherein a plurality of the auxiliary point detection circuits are connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322259629.5U CN220691061U (en) | 2023-08-22 | 2023-08-22 | Detection device of high-voltage circuit breaker of LF (ladle furnace) electric equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322259629.5U CN220691061U (en) | 2023-08-22 | 2023-08-22 | Detection device of high-voltage circuit breaker of LF (ladle furnace) electric equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220691061U true CN220691061U (en) | 2024-03-29 |
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ID=90409612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322259629.5U Active CN220691061U (en) | 2023-08-22 | 2023-08-22 | Detection device of high-voltage circuit breaker of LF (ladle furnace) electric equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220691061U (en) |
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2023
- 2023-08-22 CN CN202322259629.5U patent/CN220691061U/en active Active
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