CN203166509U - Contactor capable of avoiding open-phase operation of power system for transformer station - Google Patents
Contactor capable of avoiding open-phase operation of power system for transformer station Download PDFInfo
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- CN203166509U CN203166509U CN 201320125337 CN201320125337U CN203166509U CN 203166509 U CN203166509 U CN 203166509U CN 201320125337 CN201320125337 CN 201320125337 CN 201320125337 U CN201320125337 U CN 201320125337U CN 203166509 U CN203166509 U CN 203166509U
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Abstract
本实用新型公开了一种可避免变电站站用电系统缺相运行的接触器，解决现有的变电站站用电系统正常运行控制回路的接触器在缺相时仍可吸合，导致站用设备容易损坏的问题。包括电连接在一起的三相接触器（1）和跌落开关熔断器（3），常开中间接触器（4）的一端与三相接触器（1）的A相电连接，常开中间接触器（4）的另一端与三相接触器（1）的控制线圈（2）的一端电连接，三相接触器（1）的控制线圈（2）的另一端与三相接触器（1）的C相电连接，常开中间接触器（4）的控制线圈（5）的一端与三相接触器（1）的B相电连接，常开中间接触器（4）的控制线圈（5）的另一端与地线N（6）电连接。本实用新型确保了变电站设备的安全可靠运行。
The utility model discloses a contactor capable of avoiding the lack of phase operation of the power consumption system of a substation station, which solves the problem that the contactor of the normal operation control loop of the power consumption system of the existing substation station can still be closed when there is a phase loss, causing the failure of the station equipment The problem of easy damage. Including the three-phase contactor (1) and the drop switch fuse (3) electrically connected together, one end of the normally open intermediate contactor (4) is electrically connected to the A phase of the three-phase contactor (1), and the normally open intermediate contact The other end of the device (4) is electrically connected to one end of the control coil (2) of the three-phase contactor (1), and the other end of the control coil (2) of the three-phase contactor (1) is connected to the three-phase contactor (1) One end of the control coil (5) of the normally open intermediate contactor (4) is electrically connected to the B phase of the three-phase contactor (1), and the control coil (5) of the normally open intermediate contactor (4) The other end is electrically connected to the ground wire N (6). The utility model ensures safe and reliable operation of substation equipment.
Description
技术领域 technical field
本实用新型涉及一种变电站站用电系统控制回路中的接触器。 The utility model relates to a contactor in a control circuit of a power consumption system of a substation.
背景技术 Background technique
目前，变电站站用电系统正常运行控制回路接触器的吸合是通过连接在交流A相和C相之间的380V的电源控制回路来完成的，这种结构的接触器在交流B相失电时，仍可以正常吸合，从而导致变电站站用电系统出现缺相运行的现象，容易造成变电站站用的主变压器风机、操作电机、水泵、循环泵等三相设备的容易损坏。 At present, the pull-in of the contactor in the normal operation control circuit of the substation station power system is completed through the 380V power control circuit connected between the AC phase A and C phase. The contactor of this structure is powered off when the AC phase B , it can still pull in normally, which will lead to the lack of phase operation of the power system of the substation station, which will easily cause damage to three-phase equipment such as the main transformer fan, operating motor, water pump, and circulation pump used in the substation station.
发明内容 Contents of the invention
本实用新型提供了一种可避免变电站站用电系统缺相运行的接触器，解决了现有的变电站站用电系统正常运行控制回路的接触器在缺相时仍可吸合导致变电站站用设备容易损坏的问题。 The utility model provides a contactor capable of avoiding the lack of phase operation of the power consumption system of the substation station, which solves the problem that the contactor of the normal operation control circuit of the power consumption system of the existing substation station can still be closed when there is a lack of phase, resulting in the failure of the substation station. The problem of easy damage to equipment.
本实用新型是通过以下技术方案解决以上技术问题的： The utility model solves the above technical problems through the following technical solutions:
一种可避免变电站站用电系统缺相运行的接触器，包括电连接在一起的三相接触器和跌落开关熔断器，常开中间接触器的一端与三相接触器的A相电连接，常开中间接触器的另一端与三相接触器的控制线圈的一端电连接，三相接触器的控制线圈的另一端与三相接触器的C相电连接，常开中间接触器的控制线圈的一端与三相接触器的B相电连接，常开中间接触器的控制线圈的另一端与地线N电连接。 A contactor capable of avoiding the lack of phase operation of the power system of a substation station, including a three-phase contactor and a drop switch fuse electrically connected together, one end of the normally open intermediate contactor is electrically connected to the A phase of the three-phase contactor, The other end of the normally open intermediate contactor is electrically connected to one end of the control coil of the three-phase contactor, the other end of the control coil of the three-phase contactor is electrically connected to the C phase of the three-phase contactor, and the control coil of the normally open intermediate contactor One end of the three-phase contactor is electrically connected to the B phase, and the other end of the control coil of the normally open intermediate contactor is electrically connected to the ground wire N.
本实用新型可以有效防止站用电系统在缺相时的运行，确保变电站站用设备的安全运行。 The utility model can effectively prevent the operation of the substation power system when there is a lack of phase, and ensure the safe operation of the substation equipment.
附图说明 Description of drawings
图1是本实用新型的结构示意图。 Fig. 1 is a structural representation of the utility model.
具体实施方式 Detailed ways
一种可避免变电站站用电系统缺相运行的接触器，包括电连接在一起的三相接触器1和跌落开关熔断器3，常开中间接触器4的一端与三相接触器1的A相电连接，常开中间接触器4的另一端与三相接触器1的控制线圈2的一端电连接，三相接触器1的控制线圈2的另一端与三相接触器1的C相电连接，常开中间接触器4的控制线圈5的一端与三相接触器1的B相电连接，常开中间接触器4的控制线圈5的另一端与地线N6电连接。 A contactor capable of avoiding the lack of phase operation of the substation power system, including a three-phase contactor 1 and a drop switch fuse 3 electrically connected together, one end of the normally open intermediate contactor 4 and A of the three-phase contactor 1 The other end of the normally open intermediate contactor 4 is electrically connected to one end of the control coil 2 of the three-phase contactor 1, and the other end of the control coil 2 of the three-phase contactor 1 is electrically connected to the C-phase electrical connection of the three-phase contactor 1. One end of the control coil 5 of the normally open intermediate contactor 4 is electrically connected to the B phase of the three-phase contactor 1, and the other end of the control coil 5 of the normally open intermediate contactor 4 is electrically connected to the ground wire N6.
本实用新型是在变电站站用电系统正常运行控制回路中加入一对常开接点即常开中间接触器4，即在接触器吸合控制电源A相、C相之间加入一个常开接点即使用一个中间继电器,取站用电B相220kV电源。当B相缺相时，中间继电器不动作，常开接点不闭合，A、C相间形不成回路，三相接触器1就不会吸合，使站用电系统不会在缺相的状况下运行，保护了站用设备。 The utility model adds a pair of normally open contacts, that is, the normally open intermediate contactor 4, in the normal operation control loop of the power system of the substation station, that is, a normally open contact is added between the A phase and the C phase of the contactor suction control power supply. Use an intermediate relay to take the B-phase 220kV power supply of the station. When the phase B is open, the intermediate relay does not operate, the normally open contact does not close, the A and C phases cannot form a circuit, and the three-phase contactor 1 will not pull in, so that the power consumption system of the station will not be under the condition of phase loss. running, protecting the station equipment.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125337 CN203166509U (en) | 2013-03-19 | 2013-03-19 | Contactor capable of avoiding open-phase operation of power system for transformer station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125337 CN203166509U (en) | 2013-03-19 | 2013-03-19 | Contactor capable of avoiding open-phase operation of power system for transformer station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203166509U true CN203166509U (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320125337 Expired - Lifetime CN203166509U (en) | 2013-03-19 | 2013-03-19 | Contactor capable of avoiding open-phase operation of power system for transformer station |
Country Status (1)
| Country | Link |
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| CN (1) | CN203166509U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063491A (en) * | 2018-01-01 | 2018-05-22 | 国网宁夏电力有限公司吴忠供电公司 | Forced oil-circulated air-cooled transformer cooling control system |
-
2013
- 2013-03-19 CN CN 201320125337 patent/CN203166509U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063491A (en) * | 2018-01-01 | 2018-05-22 | 国网宁夏电力有限公司吴忠供电公司 | Forced oil-circulated air-cooled transformer cooling control system |
| CN108063491B (en) * | 2018-01-01 | 2024-01-23 | 国网宁夏电力有限公司吴忠供电公司 | Cooling control system of forced oil circulation air-cooled transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |
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| CX01 | Expiry of patent term |