CN106374307A - Switch cabinet and secondary protection equipment switching apparatus therefor - Google Patents

Abstract

The invention relates to a switch cabinet and a switching device for secondary protection equipment thereof. The switch cabinet includes a cabinet body, and a secondary protection equipment transfer device is arranged in the cabinet. The secondary protection device transfer device includes a transfer frame, and a transfer terminal is provided on the transfer frame. The connection terminal plugged into the electrical connection position of the secondary protection device is a plug-in terminal for conductive plug-in matching and a connection end for conducting conductive connection with the electrical connection position of the new secondary protection device. Before the transformation of the secondary protection equipment, the connection end and the power connection position should be electrically connected first. When renovating the secondary protection equipment, first pull out the terminals on the old secondary protection equipment together with the external wiring, and remove the old secondary protection equipment. Since the plug-in terminal matches the connecting terminal, plugging the connecting terminal into the plug-in terminal of the transfer terminal completes the transformation of the secondary protection equipment. During the transformation process, no external wiring is required, and the transformation efficiency is improved. High, the line outage time is short.

Description

A switch cabinet and its secondary protection equipment transfer device

technical field

The invention belongs to the technical field of electrical equipment, and in particular relates to a switch cabinet and a secondary protection equipment switching device thereof.

Background technique

There are many switch cabinets in the substation, and a large number of secondary protection devices are installed in the switch cabinets. After the secondary protection equipment has been used for a certain number of years, there will be problems of serious aging and poor reliability, which seriously affect the safe operation of the power grid. Therefore, after the secondary protection equipment has been used for a certain number of years, it is necessary to modify the secondary protection equipment, remove the old secondary protection equipment, and install new secondary protection equipment. The old secondary protection equipment is plugged with wiring terminals at the power connection position, and wires are connected to the wiring terminals. The specifications, quantity and order of the connection positions of the secondary protection equipment of different manufacturers are generally different, that is to say, the connection positions of the old secondary protection equipment and the connection positions of the new secondary protection equipment generally do not match. The terminal plugged into the power connection position of the old secondary protection equipment cannot be directly plugged into the power connection position of the new secondary protection equipment. Therefore, in the process of replacing the old secondary protection equipment with the new secondary protection equipment, it is necessary to Remove the terminal, and then connect the wire connected to the terminal to the electrical connection position of the new secondary protection device, that is to say, rewiring and wiring are required during the secondary transformation. It takes about two days to rewire a secondary protection device in the switchgear. Due to the large number of switchgears in the substation, a large number of wiring is required, the work tasks are heavy, the working hours are long, and the line outage time is long.

Contents of the invention

The purpose of the present invention is to provide a secondary protection equipment switching device to solve the technical problem of low efficiency caused by rewiring when renovating the secondary protection equipment. The object of the present invention is also to provide a switchgear.

The technical solution of the secondary protection equipment adapter device in the present invention is: a secondary protection equipment adapter device, which is characterized in that it includes an adapter frame, and the adapter frame is provided with an adapter terminal, and the adapter terminal has a The plug-in terminal that is electrically plugged in with the connection terminal of the old secondary protection equipment and the connection end that is used for conductive connection with the electrical connection position of the new secondary protection equipment.

The secondary equipment fixing structure for fixing the new secondary protection equipment is arranged on the adapter frame.

The adapter frame includes a terminal mounting plate and a secondary equipment mounting frame. The secondary equipment fixing structure is arranged on the secondary equipment mounting frame. The terminal mounting plate includes a mounting back plate set opposite to the power connection position of the new secondary protection equipment. The transfer terminal is arranged on the installation back plate, and the terminal installation plate is hinged on the secondary equipment installation frame so that the installation back plate can be turned over relative to the secondary equipment installation frame.

The secondary protection equipment transfer device also includes a terminal mounting plate fixing device for detachably fixing the terminal mounting plate on the secondary equipment mounting frame after the installation backplane is turned over to be set opposite to the power connection position of the new secondary protection equipment. structure.

The secondary equipment installation frame includes left and right vertical boards arranged at intervals from left to right. A space for placing new secondary protection equipment along the front and rear directions is formed between the left and right vertical boards. The upper end of the left vertical board and the upper end of the right vertical board A horizontal plate is connected between them, the terminal mounting plate is hinged to the rear end of the horizontal plate and the hinge axis extends along the left and right directions.

The rear end of the horizontal plate is located in front of the rear end of the left and right vertical plates. The terminal installation plate includes a connection plate connected to the installation backplane. The connection plate is connected to the installation backplane to form a "7" shape structure. Through the connection plate The front end of the front end is hinged to the rear end of the horizontal plate to realize the hinge connection between the terminal mounting plate and the secondary equipment mounting frame, and the connecting plate has left and right edges for matching with the upper ends of the left and right vertical plates.

The secondary protection equipment conversion device includes a terminal mounting plate fixing structure for detachably fixing the terminal mounting plate on the secondary equipment mounting frame after the installation backplane is turned over to be spaced opposite to the electrical connection position of the new secondary protection equipment , the left and right sides of the installation backboard are connected with connecting edges whose plate thickness extends along the left and right directions, and the terminal mounting plate fixing structure includes the first terminal mounting plate screw holes on the connecting edge, and the second terminal mounting plate screw holes on the corresponding side risers. The screw holes of the second terminal mounting plate and the terminal mounting plate fixing screws are passed through the screw holes of the first terminal mounting plate and corresponding to the screw holes of the second terminal mounting plate.

The adapter frame is provided with an adapter frame fixing structure for being fixed in the cabinet of the switch cabinet.

The adapter frame includes left and right vertical boards arranged at intervals from left to right, a space for placing new secondary protection equipment along the front and rear directions is formed between the left and right vertical boards, and the left vertical board includes first left vertical boards arranged correspondingly in front and rear and the second left vertical board, the second left vertical board is located on the left side of the first left vertical board, the second right vertical board is located on the right side of the first right vertical board, the rear end of the first left vertical board is connected with the second left vertical board Between the front ends of the vertical boards, between the rear end of the first right vertical board and the front end of the second right vertical board are all connected with an adapter frame fixing plate with one side facing forward, and the adapter frame fixing structure includes The first adapter frame fixing screw hole is provided on the adapter frame fixing plate and corresponds to the second adapter frame fixing screw hole on the cabinet body.

The technical scheme of the switch cabinet in the present invention is: a switch cabinet, including a cabinet body, a secondary protection equipment transfer device is provided in the cabinet, the secondary protection device transfer device includes an adapter frame, and a transfer frame is provided on the transfer frame. Connecting terminal, the transfer terminal has a plug-in terminal for conductive plugging and mating with the connecting terminal of the old secondary protection equipment and a terminal for conducting conductive connection with the connecting position of the new secondary protection equipment. connection end.

The secondary equipment fixing structure for fixing the new secondary protection equipment is arranged on the adapter frame.

The adapter frame includes a terminal mounting plate and a secondary equipment mounting frame. The secondary equipment fixing structure is arranged on the secondary equipment mounting frame. The terminal mounting plate includes a mounting back plate set opposite to the power connection position of the new secondary protection equipment. The transfer terminal is arranged on the installation back plate, and the terminal installation plate is hinged on the secondary equipment installation frame so that the installation back plate can be turned over relative to the secondary equipment installation frame.

The secondary protection equipment transfer device also includes a terminal mounting plate fixing device for detachably fixing the terminal mounting plate on the secondary equipment mounting frame after the installation backplane is turned over to be set opposite to the power connection position of the new secondary protection equipment. structure.

The secondary equipment installation frame includes left and right vertical boards arranged at intervals from left to right. A space for placing new secondary protection equipment along the front and rear directions is formed between the left and right vertical boards. The upper end of the left vertical board and the upper end of the right vertical board A horizontal plate is connected between them, the terminal mounting plate is hinged to the rear end of the horizontal plate and the hinge axis extends along the left and right directions.

The rear end of the horizontal plate is located in front of the rear end of the left and right vertical plates. The terminal installation plate includes a connection plate connected to the installation backplane. The connection plate is connected to the installation backplane to form a "7" shape structure. Through the connection plate The front end of the front end is hinged to the rear end of the horizontal plate to realize the hinge connection between the terminal mounting plate and the secondary equipment mounting frame, and the connecting plate has left and right edges for matching with the upper ends of the left and right vertical plates.

The secondary protection equipment conversion device includes a terminal mounting plate fixing structure for detachably fixing the terminal mounting plate on the secondary equipment mounting frame after the installation backplane is turned over to be spaced opposite to the electrical connection position of the new secondary protection equipment , the left and right sides of the installation backboard are connected with connecting edges whose plate thickness extends along the left and right directions, and the terminal mounting plate fixing structure includes the first terminal mounting plate screw holes on the connecting edge, and the second terminal mounting plate screw holes on the corresponding side risers. The screw holes of the second terminal mounting plate and the terminal mounting plate fixing screws are passed through the screw holes of the first terminal mounting plate and corresponding to the screw holes of the second terminal mounting plate.

The adapter frame is provided with an adapter frame fixing structure for being fixed in the cabinet of the switch cabinet.

The adapter frame includes left and right vertical boards arranged at intervals from left to right, a space for placing new secondary protection equipment along the front and rear directions is formed between the left and right vertical boards, and the left vertical board includes first left vertical boards arranged correspondingly in front and rear and the second left vertical board, the second left vertical board is located on the left side of the first left vertical board, the second right vertical board is located on the right side of the first right vertical board, the rear end of the first left vertical board is connected with the second left vertical board Between the front ends of the vertical boards, between the rear end of the first right vertical board and the front end of the second right vertical board are all connected with an adapter frame fixing plate with one side facing forward, and the adapter frame fixing structure includes The first adapter frame fixing screw hole is provided on the adapter frame fixing plate and corresponds to the second adapter frame fixing screw hole on the cabinet body.

The beneficial effect of the present invention is that: the adapter frame is provided with an adapter terminal, and the adapter terminal includes a connection end used for conductive connection of the electrical connection position of the new secondary protection equipment. Before the transformation of the secondary protection equipment, the connection The terminal is connected to the electrical connection position first. When renovating the secondary protection equipment, first pull out the terminals on the old secondary protection equipment together with the external wiring, and remove the old secondary protection equipment. Since the plug-in terminal matches the connecting terminal, plugging the connecting terminal into the plug-in terminal of the transfer terminal completes the transformation of the secondary protection equipment. During the transformation process, no external wiring is required, and the transformation efficiency is improved. High, the line outage time is short.

Description of drawings

Figure 1 is a structural schematic diagram of the new secondary protection equipment installed on the secondary protection equipment transfer device;

Fig. 2 is a schematic structural diagram of a secondary protection equipment switching device.

In the figure: 1. adapter frame; 11. first left vertical board; 12. second left vertical board; 13. first right vertical board; 14. second right vertical board; 15. adapter frame fixing plate; 151 1. Perforation of fixing screws of the first adapter frame; 16. Operation hole; 17. Horizontal plate; 18. Hinge; 19. Terminal mounting plate; 191. Connecting plate; 21. Second terminal mounting plate screw perforation; 22. Terminal mounting plate fixing screw; 23. First equipment screw perforation; 24. Equipment fixing screw; 2. New secondary protection equipment; 3. Transfer terminals; 4. Terminal blocks; 5. New connectors.

detailed description

Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

The specific embodiment of the switchgear of the present invention is shown in Fig. 1 to Fig. 2, the switchgear includes a cabinet body (not shown in the drawings) and a secondary protection equipment adapter device arranged in the cabinet body.

The secondary protection equipment adapter device includes an adapter frame 1 . The adapter frame 1 includes a terminal mounting plate and a secondary equipment mounting frame. The secondary equipment mounting frame is provided with a secondary equipment fixing structure for fixing the new secondary protection device 2, and the secondary equipment mounting frame is also provided with an adapter frame fixing structure for being fixed in the cabinet of the switch cabinet. A transfer terminal 3 is provided on the terminal mounting plate. The transfer terminal 3 includes a plug-in terminal for conductive plugging and mating with the connecting terminal 4 of the old secondary protection equipment and a terminal for conducting conductive connection with the new secondary protection equipment 2. connection end.

The secondary equipment installation frame includes left and right vertical boards arranged at intervals from left to right, and a placement space for new secondary protection equipment 2 is formed between the left and right vertical boards along the front and rear directions. The left vertical board includes a first left vertical board 11 and a second left vertical board 12 which are arranged front and rear correspondingly, and the right vertical board includes a first right vertical board 13 and a second right vertical board 14 which are correspondingly arranged front and back. The second left vertical board 12 is located on the left side of the first left vertical board 11 , and the second right vertical board 14 is located on the right side of the first right vertical board 13 . A side plate is connected between the rear end of the first left vertical plate 11 and the front end of the second left vertical plate 12, and between the rear end of the first right vertical plate 13 and the front end of the second right vertical plate 14. The adapter frame fixing plate 15 arranged facing forward. The fixing structure of the adapter frame includes a first adapter frame fixing screw hole 151 arranged on the adapter frame fixing plate 15, a second adapter frame corresponding to the first adapter frame fixing screw hole 151 arranged on the cabinet body The fixing screw holes and the frame fixing screws penetrate through the fixing screw holes of the first and second adapter frames. The second left vertical board 12 and the second right vertical board 14 are all provided with operation hole 16 on the plate surface, and operation hole 16 is used for the power switch opening of new secondary protection equipment 2 rear parts, and operation hole also is conducive to new two simultaneously. Secondary protection equipment heat dissipation. The first left vertical board 11 and the first right vertical board 13 are provided with a first device screw hole 23, and the new secondary protection device 2 is provided with a second device screw corresponding to the first device screw hole 23 on the corresponding side. Perforation, the secondary device fixing structure includes first device screw holes 23 , corresponding second device screw holes, and secondary device fixing screws 24 pierced through the first and second device screw holes.

The secondary equipment installation frame also includes a horizontal plate 17 connected between the upper end of the second left vertical plate 12 and the upper end of the second right vertical plate 14 . The rear end of the horizontal plate 17 is located at the front side of the rear end of the second left and right vertical plates. The terminal mounting plate 19 includes a connecting plate 191 connected to the rear end of the horizontal plate 17 and a downwardly folded installation back plate 192 connected to the rear end of the connecting plate 191, the installation back plate 192 is connected to the new secondary The power connection positions of the protective equipment are set relatively at intervals. The connecting plate 191 is connected to the installation back plate 192 to form a "7" shape structure. The front end of the connecting plate 191 is hinged to the rear end of the horizontal plate 17 through the hinge 18, and the hinge axis extends along the left and right directions. The connecting plate 191 has a The upper ends of the left and right vertical plates support the matched left and right edges. The connecting plate is hinged to the horizontal plate to realize the hinge connection between the terminal mounting plate and the secondary equipment mounting frame, so that the installation backplane 192 can be turned upwards, and when the installation backplane is turned upwards, it is convenient for the power connection position of the new secondary protection equipment 2 Wiring with the connection end of the transfer terminal and quick replacement of the plug connector at the power connection position. The secondary protection equipment transfer device includes a terminal mounting plate fixing structure for fixing the terminal mounting plate on the secondary equipment mounting frame. The left and right sides of the installation backplane 172 are connected with connecting edges 193 whose plate thickness extends along the left and right directions. The terminal mounting plate fixing structure includes the first terminal mounting plate screw holes 20 on the connecting edge 193, and the first terminal mounting plate screw holes 20 on the corresponding side vertical plates. The second terminal mounting plate screw hole 21 on the top and the terminal mounting plate fixing screw 22 penetrate through the first terminal mounting plate screw hole 20 and the corresponding second terminal mounting plate screw hole 21 .

During the installation process of the new secondary protection device 2 and the adapter frame 1, the wiring between the power connection position of the new secondary protection device and the transfer terminal 3 is installed in the factory. When installing in the factory, first, put the new secondary protection device 2 into the space between the left and right vertical plates, and fix the secondary device on the mounting frame with the secondary device fixing screws 112; then, put the terminal mounting plate 19 Flip upwards to connect the transfer terminal 3 and the new secondary protection device 2. The new secondary protection device 2 is plugged with a new connector 5 at the power connection position, and the connection end of the transfer terminal is a plug connection When wiring, one end of the wire is plugged into the new connector 5, and the other end of the wire is plugged into the connection end. After the wiring is completed, the terminal mounting plate 19 is lowered down, and the terminal mounting plate is realized through the terminal mounting plate fixing screw 22. 19 and the fixing of the secondary equipment mounting frame to complete the in-factory installation of the secondary protection equipment transfer device.

In the field transformation process of the secondary protection equipment, firstly, the terminal 4 of the old secondary protection equipment in the cabinet of the switchgear is pulled out together with the external wiring; then, the old secondary protection equipment is removed as a whole; Next, fix the secondary protection equipment adapter device in the cabinet through the fixing screws of the adapter frame; connect the terminal 4 of the old secondary protection equipment with the external wiring and plug it into the plug-in end of the adapter terminal, and it is completed The new secondary protection equipment replaces the transformation of the old secondary protection equipment. After the transformation is completed, turn on the rear power switch of the new secondary protection equipment through the operation hole, and carry out corresponding equipment debugging.

The plug-in end of the transfer terminal matches the connection terminal plugged in at the power connection position of the old secondary protection equipment. The terminal together with the external wiring can be plugged into the plug-in end of the transfer terminal to realize the rapid replacement of the new and old secondary protection equipment, avoiding the external wiring work of the new secondary protection equipment at the transformation site, greatly shortening the The equipment transformation cycle is shortened, the accuracy of the transformation wiring is improved, and it is efficient and fast.

In other embodiments of the switchgear in the present invention, the power connection position of the new secondary protection device 2 is connected to the first terminal block, the connection end of the transfer terminal is the second terminal block, and one end of the wire is connected to the first terminal block , the other end is connected to the second terminal block, and the new secondary protection device 2 is realized by connecting the wire between the first line bar at the power connection position of the new secondary protection device 2 and the second terminal block of the transfer terminal. The electrical connection position of the terminal is connected to the conductive connection of the connection terminal.

In other embodiments of the switchgear in the present invention, the electrical connection position of the new secondary protection device 2 is plugged with a plug connector, the connection end of the transfer terminal is a plug connection end, and the new plug connector has a function for plug connection. The plug-in structure of the terminal plug-in, the conductive connection between the power-connected position of the new secondary protection device 2 and the connection end is realized by plugging the plug-in connection end of the transfer terminal on the plug-in structure.

In other embodiments of the switchgear in the present invention, the secondary equipment fixing structure can also be set on the left and right clamping plates on the secondary equipment mounting rack that clamp the left and right sides of the new secondary protection equipment, through the left and right The right clamping plate fixes the new secondary protection equipment on the secondary equipment mounting frame.

In other embodiments of the switchgear in the present invention, the fixing structure of the terminal mounting plate can also be a clamping structure for clamping the connecting edge and the corresponding side vertical plate, and the terminal mounting plate and the secondary equipment mounting frame can be fixed through the clamping structure; The fixing structure of the terminal mounting plate can also be a buckle structure provided between the terminal mounting plate and the secondary equipment mounting frame.

In other embodiments of the switchgear in the present invention, the connecting plate can be omitted, and the upper end of the installation back plate is directly hinged to the rear end of the horizontal plate; the hinge axis between the terminal mounting plate and the secondary equipment mounting frame can also be Extending in the up and down direction, that is, the terminal mounting plate can be hinged on the rear end of one of the left and right vertical plates.

In the embodiment of the secondary protection equipment adapter device in the present invention, the structure of the secondary protection equipment adapter device is the same as that of the switch cabinet embodiment, and will not be repeated here.

Claims (10)

1. a kind of second protection equipment switching device it is characterised in that: include Change-over frame, Change-over frame is provided with conversion terminal, turn Connecting terminal has for the binding post inserted terminal that mutually conductive grafting coordinates connecing electric position grafting with the second child time protection equipment With for new second protection equipment connect the connection end that electric position is mutually conductively connected.

2. second protection equipment switching device according to claim 1 it is characterised in that: Change-over frame is provided with for fixing The secondary device fixed structure of new second protection equipment.

3. second protection equipment switching device according to claim 2 it is characterised in that: Change-over frame includes terminal installing plate With secondary device installing rack, secondary device fixed structure on secondary device installing rack, terminal installing plate include with newly secondary The electric position that connects of protection equipment is spaced the installation backboard being oppositely arranged, and located at installing on backboard, terminal installing plate cuts with scissors conversion terminal It is connected on secondary device installing rack and can relatively secondary device installing rack overturn so that installing backboard.

4. second protection equipment switching device according to claim 3 it is characterised in that: second protection equipment switching device Also include pacifying terminal with connecing after electric position interval is oppositely arranged of new second protection equipment for being turned in installation backboard The removable terminal being fixed on secondary device installing rack of dress plate installs board fixing structure.

5. second protection equipment switching device according to claim 3 it is characterised in that: secondary device installing rack includes a left side The left and right riser of right septum setting, forms the placement placed along the longitudinal direction for new second protection equipment between left and right riser Space, is connected with transverse slat between the upper end of left riser, the upper end of right riser, terminal installing plate is articulated with rearward end and the hinge of transverse slat Spindle line extends in left-right direction.

6. second protection equipment switching device according to claim 5 it is characterised in that: the rearward end of transverse slat be located at left, The front side of the rearward end of right riser, terminal installing plate includes and installs the connecting plate that backboard is connected, connecting plate and installation backboard phase Even form " 7 " shape structure, terminal installing plate and secondary device are realized by the rearward end that the leading section of connecting plate is articulated with transverse slat Installing rack hinged, connecting plate has the left and right edge for supporting cooperation with the upper end of left and right riser.

7. second protection equipment switching device according to claim 6 it is characterised in that: second protection equipment switching device Terminal is installed with connecing after electric position interval is oppositely arranged of new second protection equipment including for being turned in installation backboard The removable terminal being fixed on secondary device installing rack of plate installs board fixing structure, and the left and right sides installing backboard is respectively connected with plate The connection side that thickness extends in left-right direction, terminal is installed board fixing structure and is included located at the first terminal installing plate spiral shell connecting on side Follow closely perforation, the Second terminal installing plate screw perforation on respective side riser and be arranged in the first terminal installing plate screw perforation Terminal installing plate fixing screws with corresponding Second terminal installing plate screw perforation.

8. second protection equipment switching device according to claim 1 it is characterised in that: Change-over frame is provided with for fixing Change-over frame fixed structure in the cabinet of switch cubicle.

9. second protection equipment switching device according to claim 8 it is characterised in that: Change-over frame is included between left and right every setting The left and right riser put, forms the placement space placed along the longitudinal direction for new second protection equipment between left and right riser, left Riser includes the first left riser being correspondingly arranged in front and back and the second left riser, and the second left riser is located at the left side of the first left riser, Second right riser is located at the right side of the first right riser, between the leading section of the rearward end of the first left riser and the second left riser, the It is respectively connected with the Change-over frame that side plate forward-facing arranges between the leading section of the rearward end of one right riser and the second right riser to fix Plate, Change-over frame fixed structure is included located in Change-over frame fixed plate and is bored a hole with the second Change-over frame fixing screws on cabinet The first corresponding Change-over frame fixing screws perforation.

10. a kind of switch cubicle, including cabinet it is characterised in that: be provided with second protection equipment switching device, second protection in cabinet Equipment switching device is the second protection equipment switching device as described in claim 1-9 any one.