CN112164603A - Closing and locking system of low-voltage main feeder brake separating and communicating cabinet of low-voltage substation - Google Patents
Closing and locking system of low-voltage main feeder brake separating and communicating cabinet of low-voltage substation Download PDFInfo
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- CN112164603A CN112164603A CN202010883967.4A CN202010883967A CN112164603A CN 112164603 A CN112164603 A CN 112164603A CN 202010883967 A CN202010883967 A CN 202010883967A CN 112164603 A CN112164603 A CN 112164603A
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- 101000889048 Homo sapiens C-X-C motif chemokine 17 Proteins 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract 2
- 230000006378 damage Effects 0.000 abstract description 8
- 208000027418 Wounds and injury Diseases 0.000 abstract description 4
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- 238000012423 maintenance Methods 0.000 abstract description 4
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Keying Circuit Devices (AREA)
Abstract
The invention belongs to the technical field of electric power systems, in particular to a closing locking system of a low-voltage main feed switching-off and interconnection cabinet of a low-voltage substation, and provides the following scheme, which comprises a path of power supply VCC1 and a path of power supply VCC2 output by the low-voltage substation, and an interconnection cabinet for receiving a path of power supply VCC1 and a path of power supply VCC2, wherein a breaker auxiliary switch K1, a power-receiving switching-off coil F1, a power-receiving switching-off coil F2, a button switch SB and a change-over switch SA for switching-on conversion are arranged in the interconnection cabinet, and the button switch SB, the breaker auxiliary switch K1, the power-receiving switching-off coil F1 and the power-receiving switching-off coil F2 are sequentially connected in. When the emergency power failure is required during maintenance or accidents, the locking protection of the contact cabinet and the power receiving cabinet can be removed by connecting the change-over switch in parallel at the auxiliary switch, so that equipment damage and personal injury are guaranteed; the automatic sequential operation of power down is realized, the unplanned power failure accident caused by power down through manual reverse operation is avoided, and the power supply safety is ensured.
Description
Technical Field
The invention relates to the technical field of power systems, in particular to a closing and locking system of a low-voltage main feed disconnecting switch and a communication cabinet of a low-voltage substation.
Background
When two paths of power supplies output by the low-voltage substation are not connected with the contact cabinet, one power receiving low-voltage main feeder and the other power receiving low-voltage main feeder can be automatically disconnected; if the misoperation occurs, the power loss caused by power supply of one or two low-voltage main feeders can affect production, and therefore a switching-on locking system of a low-voltage substation low-voltage main feeder switching-off and a communication cabinet is needed.
Disclosure of Invention
The invention provides a switching-on locking system of a low-voltage main feed switching-off and interconnection cabinet of a low-voltage substation, which solves the problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the switching-on locking system of the low-voltage main feed switching-off and interconnection cabinet of the low-voltage substation comprises a path of power supply VCC1 and a path of power supply VCC2 output by the low-voltage substation and an interconnection cabinet receiving the path of power supply VCC1 and the path of power supply VCC2, the interior of the communication cabinet is provided with a breaker auxiliary switch K1, a power receiving and opening coil F1, a power receiving and opening coil F2, a button switch SB and a transfer switch SA for switching on and switching off, button switch SB, circuit breaker auxiliary switch K1, receive separating brake coil F1, two receive separating brake coil F2 series connection in proper order, circuit breaker auxiliary switch K1 and change over switch SA parallel connection, circuit breaker auxiliary switch K1, receive separating brake coil F1, two receive separating brake coil F2, button switch SB and change over switch SA set up and be used for between power VCC1 and two way power VCC2 of the same way power VCC1 and two way power VCC 2's combined floodgate adjustment.
Preferably, power VCC1 is connected with button switch SB all the way, is connected with fuse FU1 between power VCC1 and the button switch SB all the way, and two way power VCC2 are connected with two receive the power-off coil F2, are connected with fuse FU2 between two power VCC2 and two receive the power-off coil F2.
Preferably, a switch K2 is connected between the first power receiving and switching-off coil F1 and the second power receiving and switching-off coil F2.
In the present invention,
when emergency power failure is needed during maintenance or accidents, the locking protection of the contact cabinet and the power receiving cabinet can be removed by connecting the change-over switch in parallel at the auxiliary switch, so that equipment damage and personal injury are guaranteed; the automatic sequential operation of power down is realized, the unplanned power failure accident caused by power down through manual reverse operation is avoided, and the power supply safety is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a closing and locking system of a low-voltage main feed disconnecting and connecting cabinet of a low-voltage substation according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, the switching-on locking system of the low-voltage main feed switching-off and interconnection cabinet of the low-voltage substation comprises a path of power supply VCC1 and a two-path power supply VCC2 output by the low-voltage substation and an interconnection cabinet receiving a path of power supply VCC1 and a two-path power supply VCC2, the interior of the communication cabinet is provided with a breaker auxiliary switch K1, a power receiving and opening coil F1, a power receiving and opening coil F2, a button switch SB and a transfer switch SA for switching on and switching off, the button switch SB, the breaker auxiliary switch K1, the first power receiving opening coil F1 and the second power receiving opening coil F2 are connected in series in sequence, and one receives the normally open contact of separating brake coil F1 and circuit breaker auxiliary switch K1 to be connected, circuit breaker auxiliary switch K1 and change over switch SA parallel connection, circuit breaker auxiliary switch K1, one receive separating brake coil F1, two receive separating brake coil F2, button switch SB and change over switch SA set up and be used for between power VCC1 and two way power VCC2 of the same way power VCC1 and two way power VCC 2's combined floodgate adjustment.
Further, power VCC1 is connected with button switch SB all the way, is connected with fuse FU1 between power VCC1 and the button switch SB all the way, and two way power VCC2 are connected with two receive the separating brake coil F2, are connected with fuse FU2 between two receive the separating brake coil F2 two way power VCC 2.
In addition, a switch K2 is connected between the first power receiving and opening coil F1 and the second power receiving and opening coil F2.
The working principle is as follows: when the communication cabinet is used, under the condition of closing, the auxiliary switch K1 of the circuit breaker is closed, the normally open contact of the auxiliary switch K1 of the circuit breaker is normally closed, the first powered switching-off coil F1 and the second powered switching-off coil F2 can be switched off by using the buttons, so that the sequential operation of power reversing is realized, and when the communication cabinet is in a switching-off state due to the fact that the communication cabinet is in a switching-off state, the switching-off buttons SB of the first powered switching-off coil F1 and the second powered switching-off coil F2 are not operated effectively, so that the reliability of power supply is guaranteed;
when emergency power failure is needed during maintenance or accidents, the locking protection of the contact cabinet and the power receiving cabinet can be avoided by connecting the change-over switch SA in parallel at the auxiliary switch K1 of the circuit breaker, so that equipment damage and personal injury are guaranteed;
in conclusion, when the design is used for maintenance or an accident occurs and emergency power failure is needed, the locking protection of the contact cabinet and the power receiving cabinet can be thrown away by connecting the change-over switch in parallel at the auxiliary switch, so that equipment damage and personal injury are guaranteed; the automatic sequential operation of power down is realized, the unplanned power failure accident caused by power down through manual reverse operation is avoided, and the power supply safety is ensured.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. The switching-on locking system of the low-voltage main feed switching-off and interconnection cabinet of the low-voltage substation comprises a path of power supply VCC1 and a path of power supply VCC2 output by the low-voltage substation and an interconnection cabinet receiving the path of power supply VCC1 and the path of power supply VCC2, it is characterized in that the interior of the communication cabinet is provided with a breaker auxiliary switch K1, a power receiving and switching-off coil F1, a power receiving and switching-off coil F2, a button switch SB and a change-over switch SA for switching-on conversion, button switch SB, circuit breaker auxiliary switch K1, receive separating brake coil F1, two receive separating brake coil F2 series connection in proper order, circuit breaker auxiliary switch K1 and change over switch SA parallel connection, circuit breaker auxiliary switch K1, receive separating brake coil F1, two receive separating brake coil F2, button switch SB and change over switch SA set up and be used for between power VCC1 and two way power VCC2 of the same way power VCC1 and two way power VCC 2's combined floodgate adjustment.
2. The closing and locking system of the low voltage main feed disconnecting and connecting cabinet of the low voltage substation of claim 1, wherein the one-way power source VCC1 is connected to the button switch SB, the fuse FU1 is connected between the one-way power source VCC1 and the button switch SB, the two-way power source VCC2 is connected to the two power receiving disconnecting coils F2, and the fuse FU2 is connected between the two-way power source VCC2 and the two power receiving disconnecting coils F2.
3. The closing and locking system of the low voltage substation low voltage main feed switching-off and interconnection cabinet as claimed in claim 1, wherein a switch K2 is connected between the first power receiving switching-off coil F1 and the second power receiving switching-off coil F2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010883967.4A CN112164603A (en) | 2020-08-28 | 2020-08-28 | Closing and locking system of low-voltage main feeder brake separating and communicating cabinet of low-voltage substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010883967.4A CN112164603A (en) | 2020-08-28 | 2020-08-28 | Closing and locking system of low-voltage main feeder brake separating and communicating cabinet of low-voltage substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112164603A true CN112164603A (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010883967.4A Pending CN112164603A (en) | 2020-08-28 | 2020-08-28 | Closing and locking system of low-voltage main feeder brake separating and communicating cabinet of low-voltage substation |
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|---|---|
| CN (1) | CN112164603A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204794080U (en) * | 2015-06-19 | 2015-11-18 | 郑州金源特变电气有限公司 | Remote electric substation dual supply contact switch board without control cable shutting |
| CN205070179U (en) * | 2015-11-05 | 2016-03-02 | 青岛鲁能恒源高新电气有限公司 | Electric blocking device of electric power low -voltage switchgear |
| CN107845519A (en) * | 2017-12-04 | 2018-03-27 | 常熟开关制造有限公司(原常熟开关厂） | Double power supply automatic transfer switch and its control method |
-
2020
- 2020-08-28 CN CN202010883967.4A patent/CN112164603A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204794080U (en) * | 2015-06-19 | 2015-11-18 | 郑州金源特变电气有限公司 | Remote electric substation dual supply contact switch board without control cable shutting |
| CN205070179U (en) * | 2015-11-05 | 2016-03-02 | 青岛鲁能恒源高新电气有限公司 | Electric blocking device of electric power low -voltage switchgear |
| CN107845519A (en) * | 2017-12-04 | 2018-03-27 | 常熟开关制造有限公司(原常熟开关厂） | Double power supply automatic transfer switch and its control method |
Non-Patent Citations (1)
| Title |
|---|
| 刘新虎;: "低压配电室多路电源进线控制方案分析", 机床电器, no. 06, 12 December 2012 (2012-12-12) * |
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