阅读说明：本技术 一种110kVGIS变电站用于顺控系统的接地装置 (Grounding device for sequence control system of 110kVGIS transformer substation ) 是由 吴忠平 吕波 李毅 刘天慈 冷升 杨伟 彭沛博 冯波 郭靖 刘浪 刘飞 于 2021-02-06 设计创作，主要内容包括：本发明属于电力控制技术领域,尤其是涉及一种110kVGIS变电站用于顺控系统的接地装置,具有立柱、底座、支架防雨罩、接地桩和支架构成,其特征在于所述支架防雨罩下方固定有行程开关挡板,行程开关挡板由安装板和挡板主体构成,接地桩由第二固定板、接地桩主体构成,支架防雨罩和接地桩之间还设有一个行程开关,行程开关右端设有一个柱塞触点,行程开关下方固设有一个行程开关固定支架,挡板主体、接地桩主体和第一固定板被一个接地端子穿过,接地端子的左端与接地桩主体固定,第一通孔右端的接地端子上设有一个锁定螺帽,本发明具有结构简单、控制方便、提高检修效率、无需反复确认、不会造成设备事故等有益效果。(The invention belongs to the technical field of electric power control, and particularly relates to a grounding device for a sequence control system of a 110kVGIS (vertical variable voltage generator system) transformer substation, which comprises a stand column, a base, a support rain cover, a grounding pile and a support No need of repeated confirmation, no equipment accident and the like.)

1. A grounding device for a sequential control system of a 110kVGIS transformer substation is provided with a stand column (1), a base (7), a support rain cover (2), a grounding pile (5) and a support (6), wherein the stand column (1) is positioned on the base (7), the support rain cover (2) is fixedly arranged on the upper portion of the stand column (1), the support (6) is positioned on the side edge of the stand column (1) below the support rain cover (2), the grounding pile (5) is arranged on the support (6), the grounding device is characterized in that a travel switch baffle (3) is fixed below the support rain cover (2), the travel switch baffle (3) is composed of a mounting plate (31) and a baffle main body (33), the baffle main body (33) is positioned at the right end of the mounting plate (31), the upper end of the baffle main body (33) is connected with the right end of the mounting plate (31), two threaded holes (32) are formed in the mounting plate (31), and a first through hole (34) is, the mounting plate (31) is fixed on the support rain cover (2) through a threaded hole (32), the grounding pile (5) is composed of a second fixing plate (51) and a grounding pile main body (52), the grounding pile main body (52) is positioned on the second fixing plate (51), the second fixing plate (51) is fixed on the support (6), a third through hole (53) is formed in the grounding pile main body (52), a travel switch (4) is further arranged between the support rain cover (2) and the grounding pile (5), the travel switch (4) is positioned on the left side of the baffle main body (33), a plunger contact (41) is arranged at the right end of the travel switch (4), a travel switch fixing support (42) is fixedly arranged below the travel switch (4), the travel switch fixing support (42) is composed of a travel switch placing plate (421) and a first fixing plate (422), the first fixing plate (422) is vertically placed at the right end of the travel switch placing plate (421), the upper end of the first fixing plate (422) is connected with the right end of the travel switch placing plate (421), a second through hole (423) is formed in the first fixing plate (422), the first fixing plate (422) is fixed at the right end of the grounding pile main body (52), the axes of the first through hole (34), the third through hole (53) and the second through hole (423) are overlapped, a grounding terminal (9) penetrates through the first through hole (34), the third through hole (53) and the second through hole (423), the left end of the grounding terminal (9) is fixed with the grounding pile main body (52), a locking nut (8) is arranged on the grounding terminal (9) at the right end of the first through hole (34), and when the locking nut (8) moves leftwards along the grounding terminal (9), the baffle main body (33) can be in contact with the plunger contact (41).

2. The grounding device for a compliance system of a 110kVGIS substation according to claim 1, wherein the baffle main body (33) has flexibility.

3. An earthing device for a compliance control system of a 110kVGIS substation according to claim 1 or claim 2, characterized in that the locking nut (8) is a wing nut.

4. A grounding device for a compliance system in a 110kVGIS substation according to claim 3, wherein a spring is provided on the ground terminal (9) between the shutter body (33) and the first fixing plate (422).

5. A grounding device for a sequence control system of a 110kVGIS transformer substation is provided with a stand column (1), a base (7), a support rain cover (2), a grounding pile (5) and a support (6), wherein the stand column (1) is positioned on the base (7), the support rain cover (2) is fixedly arranged on the upper portion of the stand column (1), the support (6) is positioned on the side edge of the stand column (1) below the support rain cover (2), the support (6) is provided with the grounding pile (5), the grounding device is characterized in that the grounding pile (5) is composed of a second fixing plate (51) and a grounding pile main body (52), the grounding pile main body (52) is positioned on the second fixing plate (51), the second fixing plate (51) is fixed on the support (6), a third through hole (53) is formed on the grounding pile main body (52), a travel switch (4) is further arranged between the support rain cover (2) and the grounding pile (5), the travel switch (4) is located on the left side of the baffle main body (33), a plunger contact (41) is arranged at the right end of the travel switch (4), a travel switch fixing support (42) is fixedly arranged below the travel switch (4), the travel switch fixing support (42) is composed of a travel switch placing plate (421), a first fixing plate (422), the baffle main body (33) and a connecting part (424), the first fixing plate (422) is vertically placed at the right end of the travel switch placing plate (421), the upper end of the first fixing plate (422) is connected with the right end of the travel switch placing plate (421), the first fixing plate (422) is connected with the lower end of the baffle main body (33) through the connecting part (424), a second through hole (423) is formed in the first fixing plate (422), a first through hole (34) is formed in the baffle main body (33), and the first fixing plate (422) is fixed at the right end of the grounding pile main body (52), the axis of the first through hole (34), the axis of the third through hole (53) coincides with the axis of the second through hole (423), one grounding terminal (9) penetrates through the first through hole (34), the third through hole (53) and the second through hole (423), the left end of the grounding terminal (9) is fixed with the grounding pile main body (52), a locking nut (8) is arranged on the grounding terminal (9) at the right end of the first through hole (34), and when the locking nut (8) moves leftwards along the grounding terminal (9), the baffle main body (33) can be in contact with the plunger contact (41).

6. A grounding device for a compliance system in a 110kVGIS substation according to claim 5, characterized in that said baffle main body (33) is flexible.

7. Grounding device for a compliance system in a 110kVGIS substation according to claim 5 or claim 6, characterized in that the locking nut (8) is a wing nut.

8. A grounding device for a 110kVGIS substation for a compliance system according to claim 7, characterized in that a spring is provided on the ground terminal (9) between the shutter body (33) and the first fixing plate (422).

9. The grounding device for the compliance system of the 110kVGIS substation according to claim 8, wherein the material of the butterfly nut is copper or steel.

10. The grounding device for the compliance system of the 110kVGIS substation according to claim 9, wherein the material of the spring is iron or steel.

Technical Field

The invention belongs to the technical field of power control, and particularly relates to a grounding device for a sequence control system of a 110kVGIS transformer substation.

Background

In 2014, the national power grid provides new safety regulations for electrical equipment of a transformer substation, and requires that position detection after operation of the electrical equipment is subject to actual positions of all phases of the equipment, and when the actual positions cannot be seen, the position detection needs to be judged by indirect methods, such as changes of signals of mechanical position indication, electrical indication, a live display device, instruments, various telemetering signals, remote signaling signals and the like of the equipment. When the device is judged, at least two indications of different principles or different sources are correspondingly changed, and all the determined indications are simultaneously changed, so that the device can be confirmed to be operated in place. When people are tired, careless leakage is easy to occur, and the common grounding system has the grounding wire which is removed or not removed, and whether the grounding wire is removed or not can be confirmed only by on-site inspection. If the grounding wire is missed, the sequence control operation is likely to cause equipment accidents, and in order to further improve the safety of the sequence control operation, the grounding condition of the primary equipment needs to be considered in the necessary condition of the sequence control operation in consideration of the problems in the prior art.

For domestic transformer substations, the function of automatically detecting the position of the grounding wire is not available at present, so that feasibility research is carried out on 110kV transformer substations within the jurisdiction range, the following technical scheme is obtained, and the method is applied to 2 transformer substations within the jurisdiction range, and a good effect is obtained.

Disclosure of Invention

In order to solve the problems, the invention aims to disclose a grounding device for a sequence control system of a 110kVGIS substation, which is realized by adopting the following technical scheme.

A grounding device for a sequential control system of a 110kVGIS transformer substation comprises a stand column, a base, a support rain cover, a grounding pile and a support, wherein the stand column is positioned on the base, the support rain cover is fixedly arranged at the upper part of the stand column, the support is positioned at the side edge of the stand column below the support rain cover, and the grounding pile is arranged on the support, the grounding device is characterized in that a travel switch baffle is fixed below the support rain cover and comprises a mounting plate and a baffle main body, the baffle main body is positioned at the right end of the mounting plate, the upper end of the baffle main body is connected with the right end of the mounting plate, two threaded holes are formed in the mounting plate, a first through hole is formed in the baffle main body, the mounting plate is fixed on the support rain cover through the threaded holes, the grounding pile comprises a second fixing plate and a grounding pile main body, the grounding pile main body is positioned on the second, a travel switch is arranged between the support rain cover and the grounding pile, the travel switch is positioned on the left side of the baffle main body, a plunger contact is arranged at the right end of the travel switch, a travel switch fixing support is fixedly arranged below the travel switch, the travel switch fixing support is composed of a travel switch placing plate and a first fixing plate, the first fixing plate is vertically placed at the right end of the travel switch placing plate, the upper end of the first fixing plate is connected with the right end of the travel switch placing plate, a second through hole is formed on the first fixing plate, the first fixing plate is fixed at the right end of the grounding pile main body, the axes of the first through hole, the third through hole and the second through hole are coincided, a grounding terminal penetrates through the first through hole, the third through hole and the second through hole, the left end of the grounding terminal is fixed with the grounding pile main body, and a locking nut is arranged on the grounding, the left end of the grounding terminal can be hung with a grounding hook, and when the locking nut moves leftwards along the grounding terminal, the baffle main body can be contacted with the plunger contact.

The grounding device for the sequential control system of the 110kVGIS transformer substation comprises a stand column, a base, a support rain cover, a grounding pile and a support, wherein the stand column is positioned on the base, the support rain cover is fixedly arranged on the upper portion of the stand column, the support is positioned on the side edge of the stand column below the support rain cover, and the grounding pile is arranged on the support The baffle main part and adapting unit constitute, first fixed plate are placed perpendicularly in travel switch and are placed the right-hand member of board, and first fixed plate upper end is placed the board right-hand member with travel switch and link to each other, and first fixed plate and baffle main part lower extreme are connected through adapting unit, form a second through-hole on the first fixed plate, form a first through-hole in the baffle main part, first fixed plate is fixed in ground connection stake main part right-hand member, and first through-hole, third through-hole and second through-hole axis coincide, a ground terminal has worn in first through-hole, third through-hole and the second through-hole, and the left end of ground terminal is fixed with ground connection stake main part, is equipped with a locking nut on the ground terminal of first through-hole right-hand member, ground connection couple can be hung to the left end of ground terminal, and when the in-process that locking nut removed ground terminal.

The grounding device for the sequence control system of the 110kVGIS transformer substation is characterized in that the baffle main body is directly connected with the first fixing plate through the connecting component, a travel switch baffle is omitted, and components are saved, so that the cost and the equipment weight are saved, the installation time of equipment is saved, and the later maintenance is facilitated.

The grounding device for the sequence control system of the 110kVGIS transformer substation is characterized in that the travel switch is a plunger type travel switch.

The grounding device for the sequence control system of the 110kVGIS transformer substation is characterized in that the baffle main body has toughness.

The grounding device for the sequence control system of the 110kVGIS transformer substation is characterized in that the locking nut is a butterfly nut.

The grounding device for the sequence control system of the 110kVGIS transformer substation is characterized in that a spring is arranged on a grounding terminal between the baffle main body and the first fixing plate, and the phenomenon that the baffle main body cannot reset due to fatigue after repeated use is prevented.

The working principle is as follows: and after the power failure of the equipment, the electricity is tested, and then the equipment is grounded. And manually penetrating the grounding terminal through the third through hole of the grounding pile, the first through hole of the travel switch sliding baffle and the third through hole of the grounding pile, rotating the locking nut of the grounding terminal in the screwing direction, pushing the travel switch sliding baffle to move in the travel switch direction by the locking nut, enabling the sliding baffle to slowly contact a plunger contact of the travel switch, compressing the plunger to enable a contact of the travel switch to be switched on, uploading a grounded signal by the travel switch, confirming that the equipment is grounded, and locking a related switch and a disconnecting link to be inoperable, so that the equipment cannot be switched on with a grounding wire. Before the equipment is powered on, the grounding wire is detached according to an instruction, the grounding hook of the grounding wire is firstly detached, then the locking nut of the grounding terminal of the grounding wire is loosened in the opposite direction, the sliding baffle of the travel switch loses the thrust of the locking nut on the grounding terminal, the sliding baffle of the travel switch is naturally separated from the plunger contact of the travel switch, the contact of the travel switch is automatically disconnected, and the signal that the grounding wire is detached is successfully uploaded. Thus, the requirement of grounding wire dismantling confirmation of sequential control is met.

After the grounding device is adopted, whether the grounding wire is detached or not does not need to be confirmed manually and repeatedly on site, a large amount of time is saved, the overhauling efficiency is improved, the grounding detection of the 110kVGIS transformer substation for the sequence control system is also completed, even if people neglect, the device can automatically find that the grounding wire is not detached, and no device accident is caused.

Therefore, the invention has the advantages of simple structure, convenient control, improvement of maintenance efficiency, no need of repeated confirmation, no equipment accident and the like.

Drawings

Fig. 1 is a front view of a lockless nut according to embodiment 1 of the present invention.

Fig. 2 is a right side view of a lock-free nut according to embodiment 1 of the present invention.

Figure 3 is a left side view of a lock-free nut according to embodiment 1 of the present invention.

Fig. 4 is a right side view of embodiment 1 of the present invention.

Fig. 5 is a front view of embodiment 1 of the present invention.

Fig. 6 is a left side view of embodiment 1 of the present invention.

Fig. 7 is a schematic perspective view of a ground stud in embodiment 1 of the present invention.

Fig. 8 is a schematic perspective view of a travel switch baffle in embodiment 1 of the present invention.

Fig. 9 is a schematic perspective view of a travel switch fixing bracket according to embodiment 1 of the present invention.

Fig. 10 is a schematic perspective view of a travel switch fixing bracket according to embodiment 2 of the present invention.

In the figure: 1. the anti-theft device comprises a column, 2 parts of a bracket rain cover, 3 parts of a travel switch baffle, 31 parts of a mounting plate, 32 parts of threaded holes, 33 parts of a baffle main body, 34 parts of a first through hole, 4 parts of a travel switch, 41 parts of a plunger contact, 42 parts of a travel switch fixing bracket, 421 parts of a travel switch placing plate, 422 parts of a first fixing plate, 423 parts of a second through hole, 424 parts of a connecting component, 5 parts of a grounding pile, 51 parts of a second fixing plate, 52 parts of a grounding pile main body, 53 parts of a third through hole, 6 parts of a bracket, 7 parts of a base, 8 parts of a locking nut and 9 parts of a grounding.

Detailed Description

Example 1

Referring to fig. 1 to 9, a grounding device for a sequential control system of a 110kVGIS substation comprises a column 1, a base 7, a bracket rain cover 2, a grounding pile 5 and a bracket 6, wherein the column 1 is located on the base 7, the bracket rain cover 2 is fixedly arranged on the upper portion of the column 1, the bracket 6 is located on the side edge of the column 1 below the bracket rain cover 2, and the bracket 6 is provided with the grounding pile 5, the grounding device is characterized in that a travel switch baffle 3 is fixed below the bracket rain cover 2, the travel switch baffle 3 is composed of a mounting plate 31 and a baffle main body 33, the baffle main body 33 is located at the right end of the mounting plate 31, the upper end of the baffle main body 33 is connected with the right end of the mounting plate 31, two threaded holes 32 are formed in the mounting plate 31, a first through hole 34 is formed in the baffle main body 33, the mounting plate 31 is fixed on the bracket rain cover 2 through the threaded, The ground pile comprises a ground pile body 52, the ground pile body 52 is located on a second fixing plate 51, the second fixing plate 51 is fixed on a support 6, a third through hole 53 is formed in the ground pile body 52, a travel switch 4 is further arranged between the support rain cover 2 and the ground pile 5, the travel switch 4 is located on the left side of a baffle plate body 33, a plunger contact 41 is arranged at the right end of the travel switch 4, a travel switch fixing support 42 is fixedly arranged below the travel switch 4, the travel switch fixing support 42 comprises a travel switch placing plate 421 and a first fixing plate 422, the first fixing plate 422 is vertically placed at the right end of the travel switch placing plate 421, the upper end of the first fixing plate 422 is connected with the right end of the travel switch placing plate 421, a second through hole 423 is formed in the first fixing plate 422, the first fixing plate 422 is fixed at the right end of the ground pile body 52, the first through hole 34, The axes of the third through hole 53 and the second through hole 423 are overlapped, a grounding terminal 9 penetrates through the first through hole 34, the third through hole 53 and the second through hole 423, the left end of the grounding terminal 9 is fixed with the grounding pile main body 52, a locking nut 8 is arranged on the grounding terminal 9 at the right end of the first through hole 34, the left end of the grounding terminal can be hung with a grounding hook, and when the locking nut 8 moves leftwards along the grounding terminal 9, the baffle main body 33 can be in contact with the plunger contact 41.

Example 2

Referring to fig. 10 and fig. 1 to 9, a grounding device for a sequential control system of a 110kVGIS substation comprises a vertical column 1, a base 7, a bracket rain cover 2, a grounding pile 5 and a bracket 6, wherein the vertical column 1 is located on the base 7, the bracket rain cover 2 is fixedly arranged on the upper portion of the vertical column 1, the bracket 6 is located on the side of the vertical column 1 below the bracket rain cover 2, and the grounding pile 5 is arranged on the bracket 6, the grounding pile 5 is characterized in that the grounding pile 5 is composed of a second fixing plate 51 and a grounding pile main body 52, the grounding pile main body 52 is located on the second fixing plate 51, the second fixing plate 51 is fixed on the bracket 6, a third through hole 53 is formed on the grounding pile main body 52, a travel switch 4 is further arranged between the bracket rain cover 2 and the grounding pile 5, the travel switch 4 is located on the left side of the baffle main body 33, a plunger contact 41 is arranged at the right end of the travel switch 4, a travel switch fixing bracket, the travel switch fixing bracket 42 is composed of a travel switch placing plate 421, a first fixing plate 422, a baffle plate main body 33 and a connecting component 424, the first fixing plate 422 is vertically placed at the right end of the travel switch placing plate 421, the upper end of the first fixing plate 422 is connected with the right end of the travel switch placing plate 421, the lower end of the first fixing plate 422 and the baffle plate main body 33 are connected through the connecting component 424, a second through hole 423 is formed on the first fixing plate 422, a first through hole 34 is formed on the baffle plate main body 33, the first fixing plate 422 is fixed at the right end of the grounding pile main body 52, the axes of the first through hole 34, the third through hole 53 and the second through hole 423 are superposed, a grounding terminal 9 penetrates through the first through hole 34, the third through hole 53 and the second through hole 423, the left end of the grounding terminal 9 is fixed with the pile main body 52, a locking nut 8 is arranged on the grounding terminal 9 at the, the left end of the grounding terminal can be hung with a grounding hook, and the baffle main body 33 can be contacted with the plunger contact 41 when the locking nut 8 moves leftwards along the grounding terminal 9.

In the above embodiment, the baffle main body 33 is directly connected with the first fixing plate 422 through the connecting component 424, so that the travel switch baffle 3 is omitted, and the components are saved, thereby saving the cost and the weight of the equipment, saving the installation time of the equipment, and facilitating the later maintenance.

The grounding device for the sequence control system of the 110kVGIS substation is characterized in that the travel switch 4 is a plunger type travel switch.

The grounding device for the compliance control system of the 110kVGIS substation is characterized in that the baffle main body 33 is flexible.

The grounding device for the compliance system of the 110kVGIS substation is characterized in that the baffle plate main body 33 can be contacted with the plunger contact 41 in the process that the locking nut 8 moves leftwards along the grounding terminal 9.

The grounding device for the sequence control system of the 110kVGIS transformer substation is characterized in that the locking nut 8 is a butterfly nut.

The grounding device for the compliance system of the 110kVGIS substation, which is described in any embodiment, is characterized in that a spring is arranged on the grounding terminal 9 between the baffle main body 33 and the first fixing plate 422, so that the baffle main body 33 is prevented from being fatigued and incapable of being reset after being repeatedly used.

The working principle is as follows: and after the power failure of the equipment, the electricity is tested, and then the equipment is grounded. The grounding terminal 9 is manually inserted through the third through hole 53 of the grounding pile 5, the first through hole 34 of the travel switch sliding baffle 3 and the third through hole 53 of the grounding pile, the locking nut 8 of the grounding terminal 9 is rotated towards the screwing direction, the locking nut 8 can push the travel switch sliding baffle 3 to move towards the travel switch 4, so that the travel switch sliding baffle slowly contacts with the plunger contact 41 of the travel switch 4, the plunger 41 is compressed to switch on the contact of the travel switch 4, the travel switch 4 uploads a grounded signal to confirm that the equipment is grounded, and the relevant switch and the knife switch cannot be closed to operate, so that the equipment cannot be connected with a grounding wire. Before the equipment is powered on, the grounding wire is detached according to an instruction, the grounding hook of the grounding wire is firstly detached, then the locking nut 8 of the grounding wire grounding terminal 9 is loosened in the opposite direction, the stroke switch sliding baffle 3 is naturally separated from the plunger contact 41 of the stroke switch 4 due to the fact that the thrust of the locking nut 8 on the grounding terminal 9 is lost, the contact of the stroke switch 4 is automatically disconnected, and the signal that the grounding wire is detached is uploaded successfully. Thus, the requirement of grounding wire dismantling confirmation of sequential control is met.

The invention is applied to 2 power stations in the jurisdiction and obtains good effect.

After the grounding device is adopted, whether the grounding wire is detached or not does not need to be confirmed on site manually and repeatedly, a large amount of time is saved, the overhauling efficiency is improved, the grounding detection of the 110kVGIS transformer substation for the sequence control system is also completed, even if people are neglected, the device can automatically find that the grounding wire is not detached, and the device accident cannot be caused.

The invention solves the problems that the existing transformer substation does not have the function of automatically detecting the position of the grounding wire and is easy to leak grounding to cause equipment accidents, and colleagues do not need to repeatedly confirm on site, thereby improving the overhauling efficiency.

The above-mentioned embodiments are merely preferred technical solutions of the present invention, and should not be construed as limiting the present invention. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.