阅读说明：本技术 一种集成洛克线圈式固封极柱 (Integrated loker coil type solid-sealed polar pole ) 是由 李俭华 李娜 解晓峰 于 2021-08-17 设计创作，主要内容包括：本发明属于电气技术领域,特别涉及一种集成洛克线圈式固封极柱,包括与真空灭弧室的固封极柱浇注为一体的洛克线圈固定支架和引线支架；所述洛克线圈固定支架上安装有洛克线圈,洛克线圈的引出线沿所述引线支架安装引出,并连接到断路器的二次输出端口,与控制器相连接；所述洛克线圈固定支架上设有支架盖板用于将其覆盖紧密,所述引线支架上设有引线支架盖板用于将其覆盖紧密；本发明提供的集成洛克线圈式固封极柱,在系统发生故障时,控制器能够通过集成在断路器固封极柱上的洛克线圈采样电流信号,防止短路冲击电流引起的电流互感器饱和问题,消灭死区,防止拒动,保证装置保护性能的准确动作,保护系统运行安全。(The invention belongs to the technical field of electricity, and particularly relates to an integrated Rockwell coil type solid-sealed polar pole, which comprises a Rockwell coil fixing support and a lead support, wherein the Rockwell coil fixing support and the lead support are cast with the solid-sealed polar pole of a vacuum arc-extinguishing chamber into a whole; the Rocker coil fixing support is provided with a Rocker coil, and a leading-out wire of the Rocker coil is led out along the lead support, connected to a secondary output port of the breaker and connected with the controller; the Rocker coil fixing support is provided with a support cover plate for tightly covering the Rocker coil fixing support, and the lead support is provided with a lead support cover plate for tightly covering the lead support; according to the integrated loker coil type solid-sealed polar pole provided by the invention, when a system has a fault, the controller can sample a current signal through the loker coil integrated on the circuit breaker solid-sealed polar pole, so that the current transformer saturation problem caused by short-circuit impact current is prevented, dead zones are eliminated, the action rejection is prevented, the accurate action of the protection performance of the device is ensured, and the system is protected to operate safely.)

1. An integrated Rocker coil type solid-sealed polar pole is characterized by comprising a Rocker coil fixing support and a lead support which are cast with a solid-sealed polar pole of a vacuum arc extinguish chamber into a whole;

the Rocker coil fixing support is provided with a Rocker coil, and a leading-out wire of the Rocker coil is led out along the lead support, connected to a secondary output port of the breaker and connected with the controller;

the lock coil fixing support is provided with a support cover plate for tightly covering the lock coil fixing support, and the lead support is provided with a lead support cover plate for tightly covering the lead support.

2. The integrated loke coil type embedded pole according to claim 1, wherein the bracket cover plate is of a two-half structure for clasping and fixing to the loke coil fixing bracket.

3. The integrated loke coil type embedded pole according to claim 2, wherein the bracket cover plate comprises a male cover plate and a female cover plate, wherein two ends of the male cover plate extend to form a connecting part, and two sides of the connecting part extend outwards to form a tenon; two ends of the female cover plate are inwards sunken to form grooves, and two side groove walls of the grooves are inwards sunken to form mortises;

when the male cover plate is fixedly butted with the female cover plate, the connecting part is inserted into the groove, and the tenons on two sides of the connecting part are inserted into the mortises to realize connection and fixation.

Technical Field

The invention belongs to the technical field of electricity, and particularly relates to an integrated loker coil type solid-sealed polar pole.

Background

At present, a solid-sealed pole type vacuum circuit breaker used in a power system distribution network always plays an important role in opening and closing load and opening and closing short-circuit current. The circuit breaker realizes the automatic on-off function during short circuit, and is realized by sampling an output current signal of a current transformer and sending an action instruction through a controller or a microcomputer comprehensive protection device. However, since the current transformer adopts an iron core structure, when the short-circuit current is large, especially when the first half-wave impact current is large, the magnetic saturation problem occurs, so that the judgment of the controller is wrong, and especially in a system requiring the action time to be less than 20ms, the problem cannot be met. Therefore, a new technique must be adopted to meet the requirements of measuring the unsaturation without misjudgment.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide an integrated loker coil type solid-sealed polar pole which has high measurement precision during short circuit, avoids the problem of magnetic saturation and effectively prevents a controller from moving.

In order to achieve the purpose, the invention adopts the following technical scheme:

an integrated Rocker coil type solid-sealed polar pole comprises a Rocker coil fixing support and a lead support which are cast with a solid-sealed polar pole of a vacuum arc extinguish chamber into a whole;

the Rocker coil fixing support is provided with a Rocker coil, and a leading-out wire of the Rocker coil is led out along the lead support, connected to a secondary output port of the breaker and connected with the controller;

the lock coil fixing support is provided with a support cover plate for tightly covering the lock coil fixing support, and the lead support is provided with a lead support cover plate for tightly covering the lead support.

In a further technical scheme, the support cover plate is of a two-half structure and is used for being clamped and fixed on the Rockwell coil fixing support.

In a further technical scheme, the support cover plate comprises a male cover plate and a female cover plate, wherein connecting parts extend from two ends of the male cover plate, and tenons extend outwards from two sides of the connecting parts; two ends of the female cover plate are inwards sunken to form grooves, and two side groove walls of the grooves are inwards sunken to form mortises;

when the male cover plate is fixedly butted with the female cover plate, the connecting part is inserted into the groove, and the tenons on two sides of the connecting part are inserted into the mortises to realize connection and fixation.

Compared with the prior art, the invention has the following technical effects:

according to the integrated loker coil type solid-sealed polar pole provided by the invention, when a system has a fault, the controller can sample a current signal through the loker coil integrated on the circuit breaker solid-sealed polar pole, so that the current transformer saturation problem caused by short-circuit impact current is prevented, dead zones are eliminated, the action rejection is prevented, the accurate action of the protection performance of the device is ensured, and the system is protected to operate safely.

Drawings

Fig. 1 is a schematic structural diagram of an integrated rocker coil type embedded pole provided in accordance with an embodiment of the present invention;

fig. 2 is an exploded view of the bracket cover plate and the embedded pole;

the reference numbers in the figures illustrate: 10-solid sealed polar pole, 20-rock coil fixing support, 30-lead support, 40-rock coil, 50-support cover plate, 51-male cover plate, 52-female cover plate, 53-connecting part, 531-tenon, 54-groove and 541-mortise.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further clarified by combining the specific drawings.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As described above, referring to fig. 1, the present invention provides an integrated rocker coil type embedded pole, which includes a rocker coil fixing bracket 20 and a lead bracket 30, which are cast with an embedded pole 10 of a vacuum interrupter as a whole;

the Rocker coil fixing bracket 20 is provided with a Rocker coil 40, and an outgoing line of the Rocker coil 40 is led out along the lead bracket 30, is connected to a secondary output port of the breaker and is connected with a controller;

the rock coil fixing bracket 20 is provided with a bracket cover plate 50 for tightly covering the rock coil fixing bracket, and the lead bracket 30 is provided with a lead bracket cover plate 31 for tightly covering the lead bracket; the design of the holder cover 50 and the lead holder cover 31 provides sealing and insulation.

Further, referring to fig. 2, in the present invention, the support cover plate 50 is a two-half structure for clipping and fixing to the rock coil fixing support 20.

More specifically, in the present invention, the bracket cover plate 50 includes a male cover plate 51 and a female cover plate 52, wherein two ends of the male cover plate 51 extend to form a connecting portion 53, and two sides of the connecting portion 53 extend to form a tenon 531; two ends of the female cover plate 52 are recessed inwards to form a groove 54, and two side groove walls of the groove 54 are recessed inwards to form a mortise 541;

when the male cover plate 51 is butted and fixed with the female cover plate 52, the connecting portion 53 is inserted into the groove 54, and the tenons 531 at two sides of the connecting portion 53 are inserted into the tenon grooves 541, so as to realize connection and fixation.

The integrated loker coil type solid-sealed polar pole provided by the invention has the working principle that: when a short-circuit accident occurs in the system, the controller can sample a current signal through the Rocker coil 40 integrated on the breaker solid-sealed pole 10, so that the problem of current transformer saturation caused by short-circuit impact current is prevented, dead zones are eliminated, movement is prevented from being refused, the accurate action of the protection performance of the device is ensured, and the operation safety of the system is protected.

The foregoing shows and describes the general principles, essential features, and inventive features of this invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.