CN206602360U - A kind of device for realizing electrical interlocks switching - Google Patents

A kind of device for realizing electrical interlocks switching Download PDF

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Publication number
CN206602360U
CN206602360U CN201720341285.4U CN201720341285U CN206602360U CN 206602360 U CN206602360 U CN 206602360U CN 201720341285 U CN201720341285 U CN 201720341285U CN 206602360 U CN206602360 U CN 206602360U
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cabinet
contacts
contact
auxiliary
circuit breaker
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吴伟明
陈晓勇
林立赟
林明钟
吴国辉
林杰
姚国华
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Putian Fujian Province Li Yuan Electric Appliance Equipment Co Ltd
State Grid Corp of China SGCC
State Grid Fujian Electric Power Co Ltd
Putian Power Supply Co of State Grid Fujian Electric Power Co Ltd
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Putian Fujian Province Li Yuan Electric Appliance Equipment Co Ltd
State Grid Corp of China SGCC
State Grid Fujian Electric Power Co Ltd
Putian Power Supply Co of State Grid Fujian Electric Power Co Ltd
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Abstract

本实用新型公开了一种实现电气连锁切换的装置,包括第一进线柜、第二进线柜和联络柜,三者分别设置一个断路器、一个合闸回路、两个断路器辅助接点;还包括硬压板和中间继电器,中间继电器具有第一组触点、第二组触点和第三组触点,硬压板和中间继电器的线圈串联连接且并入其中一个合闸回路,第一组触点、其中一个第一断路器辅助接点、其中一个第二辅助节点并联连接并串入联络柜的合闸回路中,第二组触点、另一个第二断路器辅助接点、其中一个第三断路器辅助接点并联连接并串入第一进线柜的合闸回路中,第三组触点、另一个第一断路器辅助接点、另一个第三断路器辅助接点并联连接并串入第二进线柜的合闸回路中。本实用新型操作简单、安全。

The utility model discloses a device for realizing electrical interlock switching, which comprises a first incoming line cabinet, a second incoming line cabinet and a connection cabinet, and the three are respectively provided with a circuit breaker, a closing circuit, and two circuit breaker auxiliary contacts; It also includes a hard press plate and an intermediate relay. The intermediate relay has a first set of contacts, a second set of contacts and a third set of contacts. The coils of the hard press plate and the intermediate relay are connected in series and incorporated into one of the closing circuits. The first set Contacts, one of the first circuit breaker auxiliary contacts, one of the second auxiliary nodes are connected in parallel and connected in series to the closing circuit of the connection cabinet, the second group of contacts, the other second circuit breaker auxiliary contacts, one of the third The auxiliary contacts of the circuit breaker are connected in parallel and connected in series to the closing circuit of the first incoming cabinet, the third group of contacts, another auxiliary contact of the first circuit breaker, and another auxiliary contact of the third circuit breaker are connected in parallel and connected in series in the second In the closing circuit of the incoming cabinet. The utility model is simple and safe in operation.

Description

一种实现电气连锁切换的装置A device for realizing electrical chain switching

技术领域technical field

本实用新型涉及供电系统领域,特别是涉及一种实现电气连锁切换的装置。The utility model relates to the field of power supply systems, in particular to a device for realizing electrical chain switching.

背景技术Background technique

电力系统为保证用户供电的可靠性,通常采用来自不同变电站的线路进行供电,并采用两个进线柜和一个联络柜实现电气控制。联络柜和两个进线柜分别设置一个合闸回路和两个断路器辅助接点,用于实现互相闭锁控制,并采用三个硬压板实现三合三与三合二的电气连锁切换。然而,这种操作方式繁琐,且运维人员容易误操作。In order to ensure the reliability of power supply for users, the power system usually uses lines from different substations for power supply, and uses two incoming line cabinets and one contact cabinet to realize electrical control. The contact cabinet and the two incoming cabinets are respectively equipped with a closing circuit and two circuit breaker auxiliary contacts for mutual locking control, and three hard pressing plates are used to realize the electrical chain switching of three-in-three and three-in-two. However, this operation method is cumbersome, and operation and maintenance personnel are prone to misuse.

实用新型内容Utility model content

本实用新型提供了一种实现电气连锁切换的装置,其克服了现有技术采用三个硬压板对两个进线柜和联络柜实现电气连锁切换所存在的不足之处。The utility model provides a device for realizing electrical chain switching, which overcomes the disadvantages of the prior art that three hard pressing plates are used to realize electrical chain switching for two incoming line cabinets and a connection cabinet.

本实用新型解决其技术问题所采用的技术方案是:一种实现电气连锁切换的装置,包括第一进线柜、第二进线柜和联络柜,三者分别设置一个断路器、一个合闸回路,且第一进线柜还设置两个第一断路器辅助接点,第二进线柜还设置两个第二断路器辅助接点,联络柜还设置两个第三断路器辅助接点;还包括一个硬压板和一个中间继电器,该中间继电器具有第一组触点、第二组触点和第三组触点,硬压板和中间继电器的线圈串联连接并与其中一个合闸回路并联连接,第一组触点、其中一个第一断路器辅助接点、其中一个第二辅助节点并联连接并串入联络柜的合闸回路中,第二组触点、另一个第二断路器辅助接点、其中一个第三断路器辅助接点并联连接并串入第一进线柜的合闸回路中,第三组触点、另一个第一断路器辅助接点、另一个第三断路器辅助接点并联连接并串入第二进线柜的合闸回路中。The technical solution adopted by the utility model to solve the technical problem is: a device for realizing electrical chain switching, including a first incoming line cabinet, a second incoming line cabinet and a connection cabinet, and the three are respectively provided with a circuit breaker and a closing switch circuit, and the first incoming line cabinet is also provided with two auxiliary contacts of the first circuit breaker, the second incoming line cabinet is also provided with two auxiliary contacts of the second circuit breaker, and the contact cabinet is also provided with two auxiliary contacts of the third circuit breaker; it also includes A hard press plate and an intermediate relay, the intermediate relay has a first set of contacts, a second set of contacts and a third set of contacts, the coils of the hard press plate and the intermediate relay are connected in series and connected in parallel with one of the closing circuits, the first A group of contacts, one of the first circuit breaker auxiliary contacts, one of the second auxiliary nodes are connected in parallel and connected in series to the closing circuit of the connection cabinet, the second group of contacts, the other second circuit breaker auxiliary contacts, one of the The auxiliary contacts of the third circuit breaker are connected in parallel and connected in series to the closing circuit of the first incoming cabinet, the third group of contacts, another auxiliary contact of the first circuit breaker, and another auxiliary contact of the third circuit breaker are connected in parallel and connected in series In the closing circuit of the second incoming cabinet.

进一步的,所述硬压板和中间继电器的线圈串联连接并与联络柜的合闸回路并联连接。Further, the hard pressing plate and the coil of the intermediate relay are connected in series and connected in parallel with the closing circuit of the contact cabinet.

进一步的,所述硬压板和中间继电器的线圈串联连接并与第一进线柜的合闸回路并联连接。Further, the hard pressing plate and the coil of the intermediate relay are connected in series and connected in parallel with the closing circuit of the first incoming cabinet.

进一步的,所述硬压板和中间继电器的线圈串联连接并与第二进线柜的合闸回路并联连接。Further, the hard pressing plate and the coil of the intermediate relay are connected in series and connected in parallel with the closing circuit of the second incoming cabinet.

相较于现有技术,本实用新型具有以下有益效果:Compared with the prior art, the utility model has the following beneficial effects:

本实用新型采用一个硬压板和一个中间继电器,利用中间继电器的其中两组触点代替现有技术的其中两个硬压板,解决了原来电气三合三与三合二电气连锁切换需要使用三个硬压板导致操作繁琐且易误操作的问题,即操作更加简单、安全,适合在有单母分段运行的场合进行应用和推广,能有效避免检修人员的误操作,从中提高电气设备使用的安全和舒适度。The utility model adopts a hard pressing plate and an intermediate relay, uses two sets of contacts of the intermediate relay to replace two of the hard pressing plates in the prior art, and solves the problem of using three The hard press plate leads to cumbersome operation and easy misoperation, that is, the operation is simpler and safer, and it is suitable for application and promotion in occasions with single-female section operation, which can effectively avoid misoperation by maintenance personnel and improve the safety of electrical equipment. and comfort.

以下结合附图及实施例对本实用新型作进一步详细说明;但本实用新型的一种实现电气连锁切换的装置不局限于实施例。The utility model will be described in further detail below in conjunction with the accompanying drawings and embodiments; however, a device for realizing electrical interlock switching of the utility model is not limited to the embodiments.

附图说明Description of drawings

图1是本实用新型的联络柜的合闸回路的电气原理示意图;Fig. 1 is the electrical schematic diagram of the closing circuit of the contact cabinet of the present utility model;

图2是本实用新型的第一进线柜的合闸回路的电气原理示意图;Fig. 2 is a schematic diagram of the electrical principle of the closing circuit of the first incoming line cabinet of the present invention;

图3是本实用新型的第二进线柜的合闸回路的电气原理示意图。Fig. 3 is a schematic diagram of the electrical principle of the closing circuit of the second incoming line cabinet of the present invention.

具体实施方式detailed description

实施例,请参见图1-图3所示,本实用新型的一种实现电气连锁切换的装置,包括第一进线柜、第二进线柜和联络柜,三者分别设置一个断路器(图中未体现)、一个合闸回路10、20、30,且第一进线柜还设置两个第一断路器辅助接点1QF,第二进线柜还设置两个第二断路器辅助接点2QF,联络柜还设置两个第三断路器辅助接点3QF。For the embodiment, please refer to Fig. 1-Fig. 3, a device for realizing electrical interlock switching of the present utility model includes a first incoming line cabinet, a second incoming line cabinet and a connection cabinet, and the three are respectively provided with a circuit breaker ( Not shown in the figure), one closing circuit 10, 20, 30, and the first incoming line cabinet is also provided with two first circuit breaker auxiliary contacts 1QF, and the second incoming line cabinet is also provided with two second circuit breaker auxiliary contacts 2QF , The contact cabinet is also provided with two auxiliary contacts 3QF of the third circuit breaker.

本实用新型还包括一个硬压板JLP和一个中间继电器ZJ,该中间继电器ZJ具有第一组触点J1、第二组触点J2和第三组触点J3。如图1所示,硬压板JLP和中间继电器ZJ的线圈串联连接并与联络柜的合闸回路30并联连接,第一组触点J1、其中一个第一断路器辅助接点1QF、其中一个第二辅助节点2QF并联连接并串入联络柜的合闸回路30中。如图2所示,第二组触点J2、另一个第二断路器辅助接点2QF、其中一个第三断路器辅助接点3QF并联连接并串入第一进线柜的合闸回路10中,第三组触点J3、另一个第一断路器辅助接点1QF、另一个第三断路器辅助接点3QF并联连接并串入第二进线柜的合闸回路20中。The utility model also includes a hard press plate JLP and an intermediate relay ZJ, the intermediate relay ZJ has a first set of contacts J1, a second set of contacts J2 and a third set of contacts J3. As shown in Figure 1, the coils of the hard press plate JLP and the intermediate relay ZJ are connected in series and connected in parallel with the closing circuit 30 of the contact cabinet, the first group of contacts J1, one of the first circuit breaker auxiliary contacts 1QF, one of the second The auxiliary node 2QF is connected in parallel and connected in series to the closing circuit 30 of the connection cabinet. As shown in Figure 2, the second group of contacts J2, another second circuit breaker auxiliary contact 2QF, and one of the third circuit breaker auxiliary contacts 3QF are connected in parallel and connected in series to the closing circuit 10 of the first incoming cabinet. Three groups of contacts J3, another first circuit breaker auxiliary contact 1QF, and another third circuit breaker auxiliary contact 3QF are connected in parallel and connected in series to the closing circuit 20 of the second incoming cabinet.

当投入硬压板JLP时,中间继电器ZJ的线圈得电,因此,中间继电器ZJ的三副常开触点(即所述第一组触点J1、第二组触点J2和第三组触点J3)分别吸合,分别使与其并联连接的两个断路器辅助接点短路,从而解锁了对联络柜和两个进线柜(即第一进线柜和第二进线柜)的闭锁,此时,可分别对联络柜和两个进线柜的合闸回路30、10、20单独进行合闸操作,即实现三合三。When the hard press plate JLP is put into the coil of the intermediate relay ZJ, the coil of the intermediate relay ZJ is energized. Therefore, the three pairs of normally open contacts of the intermediate relay ZJ (that is, the first group of contacts J1, the second group of contacts J2 and the third group of contacts J3) pull in respectively to short-circuit the auxiliary contacts of the two circuit breakers connected in parallel, thus unlocking the locking of the connection cabinet and the two incoming cabinets (namely the first incoming cabinet and the second incoming cabinet). , the closing operation can be performed separately on the closing circuits 30, 10, and 20 of the contact cabinet and the two incoming cabinets, that is, three-in-three.

当打开硬压板JLP时,中间继电器ZJ的线圈失电,因此,中间继电器ZJ的三副常开触点(即所述第一组触点J1、第二组触点J2和第三组触点J3)分别断开,此时,若联络柜的断路器处于分闸状态,则其两个第三断路器辅助接点3QF闭合导通,从而解锁了对两个进线柜的闭锁,可分别对两个进线柜的合闸回路10、20单独进行合闸操作,即实现三合二;若第一进线柜的断路器处于分闸状态,则其两个第一断路器辅助接点1QF闭合导通,从而解锁了对联络柜和第二进线柜的闭锁,可分别对联络柜和第二进线柜的合闸回路30、20单独进行合闸操作,即实现三合二;若第二进线柜的断路器处于分闸状态,则其两个第二断路器辅助接点闭合2QF闭合导通,从而解锁了对联络柜和第一进线柜的闭锁,可分别对联络柜和第一进线柜的合闸回路30、10单独进行合闸操作,即实现三合二。When the hard press plate JLP is opened, the coil of the intermediate relay ZJ loses power, therefore, the three pairs of normally open contacts of the intermediate relay ZJ (that is, the first group of contacts J1, the second group of contacts J2 and the third group of contacts J3) are disconnected respectively. At this time, if the circuit breaker of the contact cabinet is in the opening state, the two third circuit breaker auxiliary contacts 3QF are closed and conducted, thereby unlocking the locks of the two incoming cabinets, and can be connected to the The closing circuits 10 and 20 of the two incoming cabinets are closed separately, that is, three-in-two; if the circuit breaker of the first incoming cabinet is in the open state, the two auxiliary contacts 1QF of the first circuit breaker are closed conduction, thereby unlocking the blocking of the contact cabinet and the second incoming line cabinet, and the closing circuits 30 and 20 of the connecting cabinet and the second incoming line cabinet can be individually closed, that is, three in two; if the second The circuit breaker of the second incoming line cabinet is in the opening state, and its two second circuit breaker auxiliary contacts are closed and 2QF is closed and conducted, thus unlocking the lock of the connecting cabinet and the first incoming line cabinet, and can separately connect the connecting cabinet and the second incoming line cabinet. The closing circuits 30 and 10 of the first incoming cabinet perform the closing operation independently, that is, realize three-in-two.

本实用新型利用中间继电器ZJ的其中两组触点代替现有技术的其中两个硬压板JLP,且实现电器连锁切换时,只需操作一个硬压板JLP,操作更加简单、安全,能有效避免检修人员的误操作,从中提高电气设备使用的安全和舒适度。The utility model uses two sets of contacts of the intermediate relay ZJ to replace two of the hard pressing plates JLP in the prior art, and only needs to operate one hard pressing plate JLP when realizing the chain switching of electrical appliances, the operation is simpler and safer, and maintenance can be effectively avoided The misoperation of personnel can improve the safety and comfort of electrical equipment.

在其它实施例中,所述硬压板和中间继电器的线圈串联连接并与第一进线柜的合闸回路并联连接。In other embodiments, the hard pressing plate and the coil of the intermediate relay are connected in series and connected in parallel with the closing circuit of the first incoming cabinet.

在其它实施例中,所述硬压板和中间继电器的线圈串联连接并与第二进线柜的合闸回路并联连接。In other embodiments, the hard pressing plate and the coil of the intermediate relay are connected in series and connected in parallel with the closing circuit of the second incoming cabinet.

上述实施例仅用来进一步说明本实用新型的一种实现电气连锁切换的装置,但本实用新型并不局限于实施例,凡是依据本实用新型的技术实质对以上实施例所作的任何简单修改、等同变化与修饰,均落入本实用新型技术方案的保护范围内。The above-mentioned embodiments are only used to further illustrate a device for realizing electrical interlock switching of the present utility model, but the present utility model is not limited to the embodiments, any simple modification made to the above embodiments according to the technical essence of the present utility model, Equivalent changes and modifications all fall within the protection scope of the technical solution of the utility model.

Claims (4)

1. a kind of device for realizing electrical interlocks switching, including the first incoming line cabinet, the second incoming line cabinet and contact cabinet, three set respectively A breaker, a closing circuit are put, and the first incoming line cabinet also sets up two the first breaker auxiliary contacts, the second incoming line cabinet Two the second breaker auxiliary contacts are also set up, contact cabinet also sets up two the 3rd breaker auxiliary contacts;It is characterized in that:Also Including hard a pressing plate and an auxiliary reclay, the auxiliary reclay is with first group of contact, second group of contact and the 3rd group Contact, the coil of hard pressing plate and auxiliary reclay is connected in series and is connected in parallel with one of closing circuit, first group of contact, One of them first breaker auxiliary contact, one of them second auxiliary node are connected in parallel and seal in the closing circuit of contact cabinet In, second group of contact, another the second breaker auxiliary contact, one of them the 3rd breaker auxiliary contact are connected in parallel and gone here and there In the closing circuit for entering the first incoming line cabinet, the 3rd group of contact, another the first breaker auxiliary contact, another the 3rd breaker Auxiliary contact is connected in parallel and sealed in the closing circuit of the second incoming line cabinet.
2. the device according to claim 1 for realizing electrical interlocks switching, it is characterised in that:The hard pressing plate and it is middle after The coil of electrical equipment is connected in series and the closing circuit with getting in touch with cabinet is connected in parallel.
3. the device according to claim 1 for realizing electrical interlocks switching, it is characterised in that:The hard pressing plate and it is middle after The coil of electrical equipment is connected in series and is connected in parallel with the closing circuit of the first incoming line cabinet.
4. the device according to claim 1 for realizing electrical interlocks switching, it is characterised in that:The hard pressing plate and it is middle after The coil of electrical equipment is connected in series and is connected in parallel with the closing circuit of the second incoming line cabinet.
CN201720341285.4U 2017-04-01 2017-04-01 A kind of device for realizing electrical interlocks switching Active CN206602360U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110364996A (en) * 2019-07-24 2019-10-22 国家电网有限公司 Improve the protective device of station service power supply reliability

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110364996A (en) * 2019-07-24 2019-10-22 国家电网有限公司 Improve the protective device of station service power supply reliability
CN110364996B (en) * 2019-07-24 2021-08-20 国家电网有限公司 Protection device for improving service power supply reliability

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