CN112701575B - Secondary screen cabinet and method of relay protection device - Google Patents

Abstract

The invention discloses a secondary screen cabinet and a method of a relay protection device, and the secondary screen cabinet comprises a cabinet body, wherein the cabinet body is of a box-type structure; a first cabinet door is arranged on one side of the box-type structure, and a second cabinet door is arranged on the other side of the box-type structure; the bottom of the box-type structure is provided with a windproof rod, the bottom of the first cabinet door is provided with a plurality of clamping grooves, and the windproof rod can be clamped at different clamping grooves; a plurality of holes are formed in the bottom of the box-type structure close to the second cabinet door for cables to pass through, and folding steps are further arranged in the bottom of the box-type structure close to the second cabinet door.

Description

Secondary screen cabinet and method of relay protection device

Technical Field

The invention belongs to the technical field of screen cabinets, and particularly relates to a secondary screen cabinet and a secondary screen cabinet method for a relay protection device.

Background

The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The secondary screen cabinet of the relay protection device is necessary equipment which is arranged in a substation protection room and is used for bearing, intensively summarizing and protecting the protection device in the substation. The secondary screen cabinet has various types, such as a main transformer protection screen cabinet, which is used for placing main transformer differential protection devices, side backup protection devices, non-electric quantity protection devices and the like; line protection cubicle-to place line protection devices of different voltage classes; a public measurement and control screen cabinet is used for placing a comprehensive device for realizing remote signaling, remote measurement and remote control functions; telecontrol communication device-a device that establishes a connection between a protection device and a master station. Besides, a clock synchronization screen, an alternating current and direct current power supply screen and the like are arranged, the screen cabinets occupy large area and have high vertical distance, and the screen cabinets are designed to bear secondary equipment at first and do not consider the convenience of maintenance personnel to carry out work. For example, when the front door of the screen cabinet is opened, the freely movable cabinet door causes inconvenience to the operation of workers; secondly, when the lines are disconnected from the lines on the top end of the screen, a relatively short maintainer needs to stand on tiptoe to operate, and if the multi-screen transformation task is executed at the same time, both physical strength and endurance are challenged; moreover when carrying out the ration debugging to protection device, lack special space on the screen and carry out the threading, if the test voltage current loop number is more, then it is difficult once only to insert the line good.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a secondary screen cabinet and a secondary screen cabinet method for a relay protection device, wherein the screen cabinet can be convenient for maintenance personnel to carry out field work to a great extent, the working process is optimized, and the working efficiency is improved.

In order to achieve the purpose, the invention is realized by the following technical scheme:

in a first aspect, an embodiment of the present invention provides a secondary screen cabinet for a relay protection device, including a cabinet body, where the cabinet body is a box-type structure; a first cabinet door is arranged on one side of the box-type structure, and a second cabinet door is arranged on the other side of the box-type structure; the bottom of the box-type structure is provided with a windproof rod, the bottom of the first cabinet door is provided with a plurality of clamping grooves, and the windproof rod can be clamped at different clamping grooves; a plurality of holes are formed in the bottom of the box-type structure close to the second cabinet door for cables to pass through, and folding steps are further arranged in the bottom of the box-type structure close to the second cabinet door.

As a further technical scheme, prevent wind pole and box structure bottom rotatable coupling, prevent wind the pole and be telescopic rod structure.

As a further technical scheme, a fixing plate is arranged on the upper portion of one side, opposite to the first cabinet door, of the box-type structure, a groove is formed in the lower portion of one side, opposite to the first cabinet door, of the box-type structure, a baffle is inserted in the groove, and the baffle can slide along the groove to be opened or closed.

As a further technical scheme, the slots are communicated with the cavity in the box-type structure, and the baffle plates are transversely arranged.

As a further technical scheme, a plurality of draw-in grooves are arranged at the bottom of the first cabinet door at intervals, and a plurality of draw-in grooves are arranged along the length of the bottom of the first cabinet door.

As a further technical scheme, a plurality of holes are arranged in rows and columns.

As a further technical scheme, the folding step is arranged at the middle position of the bottom in the box type structure, and the plurality of holes are formed in two sides of the folding step.

As a further technical scheme, the first cabinet door and the second cabinet door are arranged on two opposite sides of the box-type structure; the first cabinet door is in a single-door opening mode, and one side of the first cabinet door is hinged with the box-type structure; the second cabinet door is in a split door mode, and one side of the second cabinet door is hinged with the box-type structure.

As a further technical scheme, a tool rack is fixedly arranged on the inner side of the second cabinet door, and the tool rack is of a box body structure; the second cabinet door is made of metal materials.

In a second aspect, an embodiment of the present invention further provides a method for using the secondary screen cabinet of the relay protection device, including the following steps:

when the first cabinet door is opened, the windproof rod is pulled to be clamped at the clamping groove of the first cabinet door, and the first cabinet door is fixed;

when a relay protection tester is used for debugging test, the baffle is drawn out, and a current and voltage connecting line extends into the cabinet body from a gap beside the baffle and is connected to a corresponding terminal row;

when the terminal block is operated from the side of the second cabinet door, a tool is placed in the tool rack;

when cables need to be penetrated from the bottom of the screen cabinet, the cables penetrate into the screen cabinet along one hole, and the trend of each cable is marked at each hole;

when the terminal strip near the top of the screen is operated, the folding step is pulled out to provide support.

The beneficial effects of the above-mentioned embodiment of the present invention are as follows:

according to the screen cabinet, the windproof rods are arranged between the cabinet body and the cabinet door, and are telescopic and clamped in the clamping grooves of the cabinet door, so that the cabinet door can be fixed under the condition that the cabinet door is opened at different angles, the cabinet door does not move freely due to manual mistaken collision, and a worker can operate the panel of the device conveniently.

According to the screen cabinet, the holes are formed in the bottom of the box-type structure, cables can pass through the holes and can be marked, and workers can distinguish different cables, so that the trend of the cables is more clear.

The screen cabinet is provided with the folding steps, and the folding steps can be pulled out when needed and stepped on the steps to connect the terminal strip at the top, so that the work is facilitated, and the terminal strip can be inspected at the later stage.

The screen cabinet has more functions under the conditions of not increasing more cost, not increasing higher weight and not occupying larger volume, has high operability, high convenience and high assistance, can effectively solve the inconvenience of an overhaul worker on site, is beneficial to secondary overhaul workers to carry out multiple works such as old and new disassembly, wiring, testing and the like on a protection device, enables the overhaul worker to put the protection device into work with better energy, saves the operation time, enables the site to be safer, more regular and more organized, and effectively improves the working efficiency.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are included to illustrate an exemplary embodiment of the invention and not to limit the invention.

Fig. 1 is a schematic diagram of a secondary screen cabinet of a relay protection device according to one or more embodiments of the present invention;

fig. 2 is another schematic diagram of a secondary screen cabinet of a relay protection device according to one or more embodiments of the present invention;

FIG. 3 is a schematic view of the wind-proof rod matching with the first cabinet door slot;

FIG. 4 is a schematic view of an aperture;

FIG. 5 is an expanded schematic view of the folding step;

in the figure: the mutual spacing or size is exaggerated to show the position of each part, and the schematic diagram is only used for illustration;

wherein, 1 prevent wind pole, 2 baffles, 3 tool racks, 4 holes, 5 folding steps, 6 cabinets, 7 first cabinet doors, 8 second cabinet doors, 9 draw-in grooves, 10 fixed plates.

Detailed Description

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. 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.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

for convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

The terms "mounted", "connected", "fixed", and the like in the present invention should be understood broadly, and for example, the terms "mounted", "connected", "fixed", and the like may be fixedly connected, detachably connected, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.

As described in the background art, the prior art has disadvantages, and in order to solve the above technical problems, the present invention provides a secondary screen cabinet of a relay protection device and a method thereof.

In a typical embodiment of the present invention, as shown in fig. 1, a secondary screen cabinet of a relay protection device is provided, and compared with a conventional secondary screen cabinet of a relay protection device, the secondary screen cabinet of the relay protection device has 5 additional practical functions: prevent wind pole, tool rest, special threading baffle of tester, porous hole cable perforation and folding step.

Specifically, this secondary screen cabinet includes the cabinet body 6, and the cabinet body is the box structure, and one side of box structure is equipped with first cabinet door 7, and the opposite side of box structure is equipped with second cabinet door 8, and first cabinet door and second cabinet door set up in the relative both sides of box structure.

The first cabinet door is in a single-door opening mode, and one side of the first cabinet door is hinged with the box-type structure, so that the first cabinet door is convenient to open.

The second cabinet door is in a split door mode and is composed of two opposite door leaves, and one sides of the two door leaves are hinged to the box-type structure and convenient to open.

The bottom of the box-type structure is provided with a windproof rod 1 which is rotatably connected with the bottom of the box-type structure and is of a telescopic rod structure; a plurality of draw-in grooves 9 are seted up to first cabinet door bottom, prevent wind the pole and can block in different draw-in grooves department.

A plurality of draw-in grooves set up at first cabinet door bottom interval, and a plurality of draw-in grooves lead to long setting along first cabinet door bottom.

Because prevent wind the pole and have flexible characteristic, at first cabinet door opening degree different, prevent wind the draw-in groove department that the pole can block in the different positions in first cabinet door bottom, and then can fix according to the difference of cabinet door opening degree, make it no longer because of the people for the mistake bump the free activity, make things convenient for staff operating means panel.

In an alternative embodiment, the draft bar is made of high strength stainless steel.

The upper portion of one side, opposite to the first cabinet door, of the box-type structure is provided with a fixing plate 10, the lower portion of one side, opposite to the first cabinet door, of the box-type structure is provided with a groove, the groove is communicated with a cavity in the box-type structure, a baffle 2 is inserted in the groove, and the baffle can slide along the groove to be opened or closed.

The box structure is internally provided with a terminal strip.

The baffle is transversely arranged and is rectangular; when the staff need use relay protection tester (high immediately) to do the experiment, can take the baffle out, wear connecting wires such as voltage, electric current to the screen after before the screen, insert on corresponding terminal row, this area in space is great, can guarantee through many connecting wires, conveniently reforms transform in the protection, examines surely, checks and accept and add the volume debugging.

The fixed instrument frame 3 that sets up in second cabinet door inboard, the instrument frame is the box body structure, and the instrument frame can hold instruments such as screwdriver, pliers, spanner, soft and hard line, even piece, can take relevant instrument at any time at the in-process of tearing open and shutting, changing the line to the terminal row, avoids can't finding construction tool's situation because of the scene is mixed and disorderly.

In addition, the second cabinet door can be made of metal materials, and the provided tool is attached with a small magnet which can be temporarily adsorbed on the cabinet door after being used, so that the searching is convenient.

In the present invention, the inside and the outside are the inside close to the box-type structure and the outside far from the box-type structure, respectively.

A plurality of holes 4 are formed in the bottom of the box-type structure close to the second cabinet door and are arranged in rows, and each hole is marked for external cable threading.

In this embodiment, 4*4 holes separated from each other are provided in the bottom of the box-type structure.

Different cables are respectively penetrated through by the holes, so that different cables can be distinguished by workers, the trend of the cables is more clear, and much time can be saved when the cables are smoothed out in the early stage in transformation.

In order to facilitate the wiring operation of a worker on the terminal row close to the top of the screen, a folding step 5 is arranged at the bottom part in the box type structure close to the second cabinet door; folding step stacks in the screen cabinet when not used usually, can pull out when needs, steps on and carries out the wiring to the terminal strip at top on the step, has so both made things convenient for work, helps the later stage to inspect the terminal strip again.

The folding step sets up the middle part position of bottom in the box structure, and a plurality of holes 4 set up in folding step both sides.

The folding step 5 may be made of wood.

The use method of the screen cabinet comprises the following steps:

when the staff opens the first cabinet door of screen cabinet, prevent wind pole 1 can provide stable tie point and have flexible function for screen cabinet qianmen and screen cabinet for the cabinet door can be along with the degree that the staff pulled open and freely movable, simultaneously, be carved with fixed draw-in groove in the first cabinet door of screen cabinet and prevent wind pole contact department, when the staff opened the cabinet door, prevent wind the pole and can block in arbitrary draw-in groove department and no longer remove, avoided the cabinet door to pull open the back and remove at will and hinder the phenomenon of work.

When the staff does the debugging test with the relay protection tester, for the reading convenience, put the tester at the screen front position usually, can take baffle 2 out this moment, wear the screen back with lines such as electric current, voltage from the space that exposes, connect on corresponding terminal row, this baffle can pull open length along with how much adjustment of threading, both guarantee through sufficient wiring, guarantee again not to expose invalid space, the convenience is experimental.

When workers work on the terminal row at the back of the screen cabinet, such as loosening screws, detaching wires and installing protection modules, common tools such as screwdrivers, pliers and insulating tapes stored in a tool rack at the back door of the screen cabinet can be hung on hand, small magnets are pasted on the tools, the tools can be pasted on the door at any time in the process of alternately using the tools, and the tools are put back on the tool rack after being used up, so that the efficiency of field operation is greatly improved.

When needing to wear the cable from the screen bottom in the working process, can wear the cable that both sides come to the screen along 4 roots in the hole, marked the trend of each cable in every hole department, the staff not only can make clear to and the function of cable through the cable tablet like this, can go to judge through the mark on the hole moreover, avoided losing because of the cable tablet and can't confirm the situation of cable core function.

When the staff operates the terminal strip that is close to screen top department, can pull out folding step 5 behind the screen, constitute a miniature wooden insulating step, the line on the terminal strip is disassembled to standing on it that can be very light like this, has both guaranteed personal safety, has saved the manpower again, makes the screen cabinet more humanized.

The invention is described below with reference to specific construction cases:

on a certain day, a transformer secondary maintainer overtakens a 110kV temple transformer substation located on a certain place to execute a protection scheduled inspection task, when a front door of a screen cabinet is opened to check device information, a cabinet door is fixed by using a windproof rod, then a relay protection tester is put in place, after a current voltage line is penetrated to a screen through a baffle, the protection is subjected to quantitative debugging, the fact that differential protection cannot normally act is found, then the maintainer walks to the screen, pulls out a folding step, stands on the screen to check a terminal row wiring, and finds out that the reason of refusal action is that a current connecting piece is loose; and then taking out the screwdriver on the tool rack to fasten the connecting piece, sucking the screwdriver on the second cabinet door by hands to check other connecting wires, finding that the protection device is provided with two tripping wires which are not connected, immediately connecting a 4-core cable from the hole, writing the going direction of the cable at the hole, and finally correctly finishing the task of regular inspection.

Therefore, after the relay protection device secondary screen cabinet is put into operation, the working efficiency of maintainers is greatly improved, compared with the secondary screen cabinet before the operation, the time for regular inspection is shortened by 20 minutes, the operation time is saved, and the site is safer, more regular and more organized.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A secondary screen cabinet of a relay protection device is characterized by comprising a cabinet body, wherein the cabinet body is of a box-type structure; a first cabinet door is arranged on one side of the box-type structure, and a second cabinet door is arranged on the other side of the box-type structure; the bottom of the box-type structure is provided with a windproof rod, the bottom of the first cabinet door is provided with a plurality of clamping grooves, and the windproof rod can be clamped at different clamping grooves; a plurality of holes are formed in the bottom of the box type structure close to the second cabinet door for cables to pass through, and folding steps are further arranged in the bottom of the box type structure close to the second cabinet door;

the windproof rod is rotatably connected with the bottom of the box-type structure and is of a telescopic rod structure; the cabinet door can move freely along with the degree of opening of workers;

the plurality of clamping grooves are arranged at intervals at the bottom of the first cabinet door, and the plurality of clamping grooves are arranged along the length of the bottom of the first cabinet door;

the upper portion of one side, opposite to the first cabinet door, of the box-type structure is provided with a fixing plate, the lower portion of one side, opposite to the first cabinet door, of the box-type structure is provided with a groove, a baffle is inserted in the groove, and the baffle can slide along the groove to be opened or closed.

2. The secondary screen cabinet of relay protection device as claimed in claim 1, wherein the slot is connected to the cavity inside the box-type structure, and the baffle is disposed transversely.

3. The secondary screen cabinet of claim 1, wherein the plurality of holes are arranged in rows and columns.

4. The secondary screen cabinet of relay protection device as claimed in claim 1, wherein the folding step is disposed at a middle position of the bottom of the box-type structure, and the plurality of holes are disposed at both sides of the folding step.

5. The secondary screen cabinet of relay protection device as claimed in claim 1, wherein the first and second cabinet doors are disposed on opposite sides of the box-type structure; the first cabinet door is in a single-door opening mode, and one side of the first cabinet door is hinged with the box type structure; the second cabinet door is in a split door mode, and one side of the second cabinet door is hinged with the box-type structure.

6. The secondary screen cabinet of relay protection device as claimed in claim 1, wherein a tool rack is fixedly disposed inside the second cabinet door, the tool rack being of a box structure; the second cabinet door is made of metal materials.

7. The use method of the secondary screen cabinet of the relay protection device according to any one of claims 1 to 6, characterized by comprising the following steps:

when the first cabinet door is opened, the windproof rod is pulled to be clamped at the clamping groove of the first cabinet door, and the first cabinet door is fixed;

when a relay protection tester is used for debugging test, the baffle is drawn out, and a current and voltage connecting line extends into the cabinet body from a gap beside the baffle and is connected to a corresponding terminal row;

when the terminal block is operated from the side of the second cabinet door, a tool is placed in the tool rack;

when cables need to be penetrated from the bottom of the screen cabinet, the cables penetrate into the screen cabinet along one hole, and the trend of each cable is marked at each hole;

when the terminal strip near the top of the screen is operated, the folding step is pulled out to provide support.

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