CN214227501U - Medium-voltage emergency power supply connecting device - Google Patents
Medium-voltage emergency power supply connecting device Download PDFInfo
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- CN214227501U CN214227501U CN202022948388.1U CN202022948388U CN214227501U CN 214227501 U CN214227501 U CN 214227501U CN 202022948388 U CN202022948388 U CN 202022948388U CN 214227501 U CN214227501 U CN 214227501U
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Abstract
The utility model belongs to the technical field of it is electric, concretely relates to middling pressure emergency power source connecting device. The utility model discloses an indoor keysets and outdoor interface case, wherein: the outgoing line busbar is fixed on the box body through the first insulator and the second insulator; the transition busbar is fixed at the lower end of the busbar; the two incoming branch busbars are respectively fixed on the box body through two insulators II, an insulating partition plate I is arranged between the two incoming branch busbars, one end of the switching busbar is connected to the outgoing busbar, and the other end of the switching busbar is connected to one of the incoming branch busbars; the bus bar is fixed on the box body through a first insulator and a second insulator; a cable sealing component is arranged below the box body; a sealing cover is arranged above the sealing component; the box is equipped with the fixed beam, is equipped with the staple bolt on the fixed beam for fixed incoming cable. The utility model is suitable for an below the 35kV AC power supply system can be with emergency power supply quick safe be connected to on the consumer.
Description
Technical Field
The utility model belongs to the technical field of it is electric, concretely relates to middling pressure emergency power source connecting device.
Background
After the fukushima nuclear accident, in order to further improve the nuclear safety level of the nuclear power plant in China, the national nuclear safety administration puts forward a series of improvement requirements on each nuclear power plant and issues an instructive document of general technical requirements on the improvement action of the nuclear power plant after the fukushima nuclear accident, wherein a mobile emergency power supply is required to be arranged in the nuclear power plant which is definitely required to be operated and built, when the nuclear power plant loses all alternating current power supplies (including a plant address with an additional diesel generator), temporary power is provided for implementing emergency measures through the configured mobile emergency power supply so as to relieve the accident consequence, and a time window is provided for recovering the alternating current power supplies inside and outside the plant.
The existing emergency power supply access method and connecting equipment have the following problems:
the situation of a standby diesel generator is not considered;
the emergency mobile power supply can be accessed only by considering the standby diesel generator and needing to add a switch cabinet or technically modify the switch cabinet;
the transfer box is narrow in space, the position of the bolt is unreasonable, the dismounting and mounting are long in time consumption, and the risk of injury of personnel exists;
the five-prevention function of the electrical equipment is not in place, and the risk of people getting an electric shock due to errors and people exists.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a middling pressure emergency power source inserts method and jointing equipment is applicable to the following alternating current power supply system of 35kV, can be with emergency power source quick safe be connected to on the consumer.
The utility model adopts the technical proposal that:
a medium voltage emergency power connection device comprising an indoor junction box and an outdoor interface box, wherein: the indoor adaptor box includes: the cable sealing device comprises a box body, a wire outlet bus bar, a first insulator, a second insulator, a switching bus bar, a wire inlet branch bus bar, a first insulating partition plate, a cable sealing assembly, a second insulating partition plate, a transition bus bar and a box door, wherein the wire outlet bus bar is fixed on the box body through the first insulator and the second insulator; the insulator transition busbar is of a U-shaped structure, the opening of the insulator transition busbar faces the outside, and connecting holes are formed in the two ends of the insulator transition busbar; the transition busbar is fixed at the lower end of the busbar; the two incoming branch busbars are respectively fixed on the box body through two insulators II, an insulating partition plate I is arranged between the two incoming branch busbars, one end of the switching busbar is connected to the outgoing busbar, and the other end of the switching busbar is connected to one of the incoming branch busbars;
the outdoor interface box includes: the cable box comprises a first insulator, a second insulator, a bus bar, a box body, a fixed beam, a hoop, a cable sealing assembly, a sealing cover and a box door, wherein the bus bar is fixed on the box body through the first insulator and the second insulator; the bus bar is a U-shaped structure bus bar, the opening of the bus bar faces to the outside, and connecting holes are formed in the two ends of the bus bar and are connected with the cable; a cable sealing component is arranged below the box body; a sealing cover is arranged above the sealing component; the box is equipped with the fixed beam, is equipped with the staple bolt on the fixed beam for fixed incoming cable.
In the indoor adapter box, one outgoing busbar and two incoming branch busbars form a group, and three groups are arranged in the box body and are respectively used for connecting an A-phase power supply, a B-phase power supply and a C-phase power supply; and a second insulating partition plate is arranged between each group, and cable sealing components are arranged above and below the box body.
In the indoor switching box, the switching busbar is an L-shaped switching busbar and can be switched between the two incoming line branch busbars, and connecting holes are formed in the two ends of the switching busbar.
In the indoor adapter box, the incoming branch busbar is an L-shaped incoming busbar, one end of the incoming busbar faces the outside, the other end of the incoming busbar faces the lower side, and connecting holes are formed in the two ends of the incoming busbar.
In the indoor transfer box, a glass window, an electrified display indicator, a door lock and a mechanical interlock are arranged on a box door; the live display indicator is matched with the first insulator for use; the mechanical interlock interlocks with the associated system.
In the outdoor interface box, the busbar is provided with three groups which are respectively used for connecting an A-phase power supply, a B-phase power supply and a C-phase power supply, and three insulating partition plates are arranged between each group.
In the outdoor interface box, a box door is provided with an electrified display indicator, a door lock and a mechanical interlock; the live display indicator is matched with the first insulator for use; the mechanical interlock has an interlocking relationship with the associated system.
The insulator is a high-voltage live display sensor insulator, and has a main function of transmitting a high-voltage live signal to a live display indicator besides a supporting function; the second insulator only plays a supporting role, and the connecting hole is used for connecting the switching busbar.
Compared with the prior art, the beneficial effects of the utility model reside in that:
(1) the utility model provides a medium-voltage emergency power supply connecting device, which can quickly and safely connect an emergency power supply to electric equipment or an electric place, has safe operation, simple structure and low manufacturing cost;
(2) the utility model provides a medium-voltage emergency power supply connecting device, which solves the problem that a standby diesel generator is connected in a power distribution system;
(3) the utility model provides a medium-voltage emergency power supply connecting device, which avoids the situation that an outdoor adapter box is electrified when a standby diesel generator operates, and reduces risks;
(4) the utility model provides a medium-voltage emergency power supply connecting device, which is additionally provided with a mechanical interlocking device to prevent interface equipment from being opened manually; the integrity of the five-prevention function of the electrical equipment is ensured through a mechanical interlocking device;
(5) the utility model provides a medium-voltage emergency power supply connecting device, the bolt and the switching row are arranged reasonably, the problem that the switching row is difficult to disassemble and assemble due to narrow space is solved, the time consumed for disassembling and assembling the switching row in emergency can be greatly reduced, and meanwhile, the hands of operators can be prevented from being injured; the workload of laying and transferring temporary cables is reduced.
Drawings
FIG. 1 is a schematic view of the interior of an indoor transfer box
FIG. 2 schematic diagram of an indoor transfer box door
FIG. 3 schematic view of the interior of the outdoor interface box
FIG. 4 is a schematic view of an outdoor interface box door
In the figure: 1-a box body; 2-a wire outlet bus bar; 3, a first insulator; 4, a second insulator; 5-bolt; 6-switching over the busbar; 7-incoming branch busbar; 8, insulating the first partition plate; 9-a cable sealing assembly; 10-insulating partition plate two; 11-a bolt; 12-a transition busbar; 13-a box door; 14-a glazing; 15-a charged display indicator; 16-a door lock; 17-mechanical interlocking; 18-insulating partition plate three 19-busbar; 20-a box body; 21-a fixed beam; 22-anchor ear; 23-a sealing cover; 25-box door.
Detailed Description
The invention provides a medium voltage emergency power connection device, which is described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-4, the utility model provides a medium voltage emergency power supply connecting device includes indoor adapter box and outdoor interface box, wherein:
as shown in fig. 1 and 2, the indoor junction box comprises: the box body 1, the outgoing line busbar 2, the first insulator 3, the second insulator 4, the switching busbar 6, the incoming line branch busbar 7, the first insulating partition plate 8, the cable sealing assembly 9, the second insulating partition plate 10, the transition busbar 12, the box door 13, the glass window 14, the live display indicator 15, the door lock 16 and the mechanical interlock 17,
the outgoing line bus bar 2 is fixed on the box body 1 through a first insulator 3 and a second insulator 4; the first insulator 3 is a high-voltage live display sensor insulator, and has a main function of transmitting a high-voltage live signal to a live display indicator besides a supporting function; the second insulator 4 is an insulator transition busbar 12 which only plays a supporting role and is of a U-shaped structure, the opening of the busbar faces to the outside, and connecting holes are formed in two ends of the busbar; the connecting hole is used for connecting the switching busbar 6, and the transition busbar 12 is fixed at the lower end of the busbar 2 through a bolt 11;
the two incoming branch busbars 7 are respectively fixed on the box body 1 through two insulators II 4, an insulating partition plate I8 is arranged between the two incoming branch busbars 7,
one end of the switching busbar 6 is connected to the outgoing busbar 2 through a bolt 5, and the other end of the switching busbar is connected to one incoming branch busbar 7;
the box body 1 is internally provided with three groups which are respectively used for connecting an A-phase power supply, a B-phase power supply and a C-phase power supply; a second insulating partition plate 10 is arranged between each group, and cable sealing components 9 are arranged above and below the box body 1;
the outgoing line busbar 2 is an I-shaped outgoing line busbar;
the switching busbar 6 is an L-shaped switching busbar and can be switched between the two incoming branch busbars 7, and connecting holes are formed in two ends of the switching busbar;
the incoming branch busbar 7 is an L-shaped incoming busbar, one end of the incoming branch busbar faces the outside, the other end of the incoming branch busbar faces the lower part, and connecting holes are formed in the two ends of the incoming branch busbar;
the first insulator 3 is a high-voltage live display sensor insulator;
the box door 13 is provided with a glass window 14, an electrified display indicator 15, a door lock 16 and a mechanical interlock 17;
the charged display indicator 15 is matched with the first insulator 3 for use;
the mechanical interlock 17 interlocks with the associated system.
As shown in fig. 3 and 4, the outdoor interface box includes: the device comprises a first insulator 3, a second insulator 4, a third insulating partition 18, a busbar 19, a box body 20, a fixed beam 21, an anchor ear 22, a cable sealing component 9, a sealing cover 23, a live display indicator 15, a door lock 16, a mechanical interlock 17 and a box door 25.
The busbar 19 is fixed on the box body 20 through the first insulator 3 and the second insulator 4;
the bus bar 19 is a U-shaped bus bar, the opening of the U-shaped bus bar faces to the outside, and connecting holes are formed in the two ends of the U-shaped bus bar and are connected with a cable through bolts 5; the busbar 19 is provided with three groups which are respectively used for connecting A-phase, B-phase and C-phase three-phase power supplies, and an insulating partition plate III 18 is arranged between each group;
a cable sealing component 9 is arranged below the box body 20;
a sealing cover 23 is arranged above the sealing component 9;
the box body 20 is provided with a fixed beam 21, and the fixed beam 21 is provided with a hoop 22 for fixing the incoming cable;
the box door 25 is provided with a live display indicator 15, a door lock 16 and a mechanical interlock 17;
the charged display indicator 15 is matched with the first insulator 3 for use;
the mechanical interlock 17 is in interlocking relationship with the associated system.
The utility model discloses application method as follows:
1. a cable is connected between the laid outdoor interface box and the indoor transfer box, one end of the cable penetrates through the cable sealing assembly 9 to be connected to one end of an outdoor interface box bus bar 19 and is fixed on the fixed beam 21 through the hoop 22, and the other end of the cable is connected with the lower end of an incoming branch bus bar 7 of the indoor transfer box;
2. and laying a cable between the standby diesel generator and the indoor adapter box, wherein one end of the cable penetrates through a cable sealing assembly 9 on the lower part of the indoor adapter box to be connected with the lower end of the other incoming branch busbar 7, and the other end of the cable is connected to an outgoing line of the standby diesel generator.
3. Cables between the emergency power system and the indoor adapter box are laid, and one end of each cable penetrates through a cable sealing assembly 9 on the upper portion of the indoor adapter box to be connected to the upper end of the outgoing bus bar 2.
4. The power supply mode by using the standby diesel generator comprises the following steps:
and (3) opening the indoor transfer box mechanical interlock 17 by using a mechanical interlock key, opening the box door 1, connecting one end of an indoor transfer box transfer bus bar 7 to the upper end of the standby diesel generator incoming line branch bus bar 7 through a bolt 5, and connecting the other end of the indoor transfer box transfer bus bar to the lower end of the outgoing line bus bar 2.
The door 1 is closed and the mechanical interlock 17 is restored.
And starting the standby diesel generator to supply power to the emergency power utilization system by the standby diesel generator.
5. The power supply mode of the mobile power supply is as follows:
the mechanical interlocking 17 of the outdoor interface box is opened by a mechanical interlocking key, the door 25 of the interface box is opened, the sealing cover 23 in the box is opened, the power supply cable of the mobile power supply penetrates through the cable sealing component 9 to be connected to the other end of the busbar 19, and the cable is fixed on the fixed beam 21 through the hoop 22.
The door 25 is closed and the mechanical interlock 17 is restored.
And (3) opening the indoor transfer box mechanical interlock 17 by using a mechanical interlock key, opening the box door 1, connecting one end of an indoor transfer box transfer bus bar 7 to the upper end of the mobile power supply incoming branch bus bar 7 through a bolt 5, and connecting the other end of the indoor transfer box transfer bus bar to the lower end of the outgoing bus bar 2.
The door 1 is closed and the mechanical interlock 17 is restored.
And the emergency power supply is started, so that the emergency mobile power supply can supply power to the emergency power utilization system.
And after the power supply of the emergency power supply is stopped, the cable connected with the busbar 19 by the emergency power supply is removed, and the sealing cover 23 in the outdoor interface box is recovered.
The above description is only the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and the inventive concept thereof equally within the technical scope disclosed in the present invention, and all the modifications should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a middling pressure emergency power source connecting device which characterized in that: including indoor keysets and outdoor interface box, wherein: the indoor adaptor box includes: the cable sealing device comprises a box body, a wire outlet bus bar, a first insulator, a second insulator, a switching bus bar, a wire inlet branch bus bar, a first insulating partition plate, a cable sealing assembly, a second insulating partition plate, a transition bus bar and a box door, wherein the wire outlet bus bar is fixed on the box body through the first insulator and the second insulator; the insulator transition busbar is of a U-shaped structure, the opening of the insulator transition busbar faces the outside, and connecting holes are formed in the two ends of the insulator transition busbar; the transition busbar is fixed at the lower end of the busbar; the two incoming branch busbars are respectively fixed on the box body through two insulators II, an insulating partition plate I is arranged between the two incoming branch busbars, one end of the switching busbar is connected to the outgoing busbar, and the other end of the switching busbar is connected to one of the incoming branch busbars;
the outdoor interface box includes: the cable box comprises a first insulator, a second insulator, a bus bar, a box body, a fixed beam, a hoop, a cable sealing assembly, a sealing cover and a box door, wherein the bus bar is fixed on the box body through the first insulator and the second insulator; the bus bar is a U-shaped structure bus bar, the opening of the bus bar faces to the outside, and connecting holes are formed in the two ends of the bus bar and are connected with the cable; a cable sealing component is arranged below the box body; a sealing cover is arranged above the sealing component; the box is equipped with the fixed beam, is equipped with the staple bolt on the fixed beam for fixed incoming cable.
2. A medium voltage emergency power connection device according to claim 1, wherein: in the indoor adapter box, one outgoing busbar and two incoming branch busbars form a group, and three groups are arranged in the box body and are respectively used for connecting an A-phase power supply, a B-phase power supply and a C-phase power supply; and a second insulating partition plate is arranged between each group, and cable sealing components are arranged above and below the box body.
3. A medium voltage emergency power connection device according to claim 1, wherein: in the indoor switching box, the switching busbar is an L-shaped switching busbar and can be switched between the two incoming line branch busbars, and connecting holes are formed in the two ends of the switching busbar.
4. A medium voltage emergency power connection device according to claim 1, wherein: in the indoor adapter box, the incoming branch busbar is an L-shaped incoming busbar, one end of the incoming busbar faces the outside, the other end of the incoming busbar faces the lower side, and connecting holes are formed in the two ends of the incoming busbar.
5. A medium voltage emergency power connection device according to claim 1, wherein: in the indoor transfer box, a glass window, an electrified display indicator, a door lock and a mechanical interlock are arranged on a box door; the live display indicator is matched with the first insulator for use; the mechanical interlock interlocks with the associated system.
6. A medium voltage emergency power connection device according to claim 1, wherein: in the outdoor interface box, the busbar is provided with three groups which are respectively used for connecting an A-phase power supply, a B-phase power supply and a C-phase power supply, and three insulating partition plates are arranged between each group.
7. A medium voltage emergency power connection device according to claim 1, wherein: in the outdoor interface box, a box door is provided with an electrified display indicator, a door lock and a mechanical interlock; the live display indicator is matched with the first insulator for use; the mechanical interlock has an interlocking relationship with the associated system.
8. A medium voltage emergency power connection device according to claim 1, wherein: the insulator is a high-voltage live display sensor insulator, and has a main function of transmitting a high-voltage live signal to a live display indicator besides a supporting function; the second insulator only plays a supporting role, and the connecting hole is used for connecting the switching busbar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022948388.1U CN214227501U (en) | 2020-12-08 | 2020-12-08 | Medium-voltage emergency power supply connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022948388.1U CN214227501U (en) | 2020-12-08 | 2020-12-08 | Medium-voltage emergency power supply connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214227501U true CN214227501U (en) | 2021-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022948388.1U Active CN214227501U (en) | 2020-12-08 | 2020-12-08 | Medium-voltage emergency power supply connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214227501U (en) |
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2020
- 2020-12-08 CN CN202022948388.1U patent/CN214227501U/en active Active
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