Emergency generator access power box

Abstract

The invention provides an emergency generator access power box which comprises a box body, a box door and a base. The first opening of the box body is shielded or exposed by the box door, and the second opening is shielded by a base fixed outside the bottom wall of the box body; a molded case circuit breaker, an emergency cable access box and an alternating current bus cable access box are fixed on an equipment mounting plate in the box body; the ABC three-phase connecting terminals of the molded case circuit breaker are connected with the upper sides of the ABC three-phase connecting terminals of the emergency cable access box and the AC bus cable access box; a first insertion end and a second insertion end are correspondingly formed on the lower sides of ABC three-phase connection terminals of the emergency cable access box and the alternating current bus cable access box; the base is provided with an alternating current bus inlet hole; and after the power-losing alternating-current bus is connected into the three second insertion ends, the box door is opened, an emergency cable of an external emergency generator is connected into the three first insertion ends, the opening and closing states of the molded case circuit breaker are controlled, and the emergency generator supplies power to the power-losing bus or cuts off power from the power-losing bus. By implementing the method, the working process is simplified, and the operation risk is reduced.

Description

Technical Field

[0001] This invention relates to the field of power system technology, and in particular to an emergency generator access power supply box. Background Technology

[0002] Currently, many power-consuming locations use temporary connections or load switch recirculation methods to connect emergency generators. This requires significant effort in site surveys, risk assessments, and other cumbersome procedures, posing substantial safety risks such as electric shock and unreliable generator connection points. Therefore, there is an urgent need for a dedicated emergency generator connection power box to simplify the workflow and reduce operational risks. Summary of the Invention

[0003] The technical problem to be solved by the embodiments of the present invention is to provide an emergency generator access power box, which can simplify the workflow and reduce operational risks.

[0004] To address the aforementioned technical problems, embodiments of the present invention provide an emergency generator access power supply box, comprising a box body, a door, and a base; wherein... The enclosure is a closed structure with a first opening on its side wall and a second opening on its bottom wall. The first opening is either covered or exposed by a rotatable door, and the second opening is covered by a base fixed to the outside of the bottom wall of the enclosure. A device mounting plate is fixed between the top and bottom walls of the enclosure. The device mounting plate is located between the first and second openings, and a molded case circuit breaker is fixed on the side facing the first opening. An emergency cable junction box and an AC busbar cable junction box are fixed on the side facing away from the first opening. Each of the molded case circuit breaker, the emergency cable junction box, and the AC busbar cable junction box contains a... The circuit breaker has three-phase (ABC) connection terminals, and three cables are led out from the upper side of the ABC three-phase connection terminals inside the molded case circuit breaker and connected to the upper side of the ABC three-phase connection terminals inside the emergency cable access box, respectively. Additionally, three more cables are led out from the lower side of the ABC three-phase connection terminals inside the molded case circuit breaker and connected to the upper side of the ABC three-phase connection terminals inside the AC busbar cable access box, respectively. The lower side of each of the ABC three-phase connection terminals inside the emergency cable access box is formed as a first insertion end, corresponding to the three emergency cable inlet holes pre-drilled on the equipment mounting plate. The lower side of each of the ABC three-phase connection terminals inside the AC busbar cable access box is formed as a second insertion end. The base has an AC busbar inlet hole, which corresponds to the second opening. The AC busbar to be de-energized is inserted through the AC busbar inlet hole on the base, enters the box through the second opening, and is connected to the three second insertion terminals formed on the lower side of the ABC three-phase connection terminals inside the AC busbar cable access box. Then, the box door is opened, and the emergency cable led out from the external emergency generator is inserted into the three emergency cable inlet holes and connected to the three first insertion terminals formed on the lower side of the ABC three-phase connection terminals inside the emergency cable access box. By controlling the opening and closing state of the molded case circuit breaker, the external emergency generator can be driven to supply power to or de-energize the de-energized busbar.

[0005] The equipment mounting plate includes a first connecting plate and a second connecting plate; wherein, One side of the first connecting plate is fixed to the top wall of the box, and the other side is spliced ​​to one side of the second connecting plate through a locking structure; The other side of the second connecting plate is fixed to the bottom wall of the box, and the molded case circuit breaker, the emergency cable access box and the AC busbar cable access box are fixed in the middle part of the plate.

[0006] The second connection plate is equipped with ABC three-phase voltage measurement sockets for measuring the three-phase output voltage of the generator; the ABC three-phase voltage measurement sockets are respectively connected to the upper side of the ABC three-phase connection terminals inside the molded case circuit breaker through three first electrical wires.

[0007] The first connection plate is equipped with ABC three-phase power indicator lights for visually indicating whether the generator's three-phase output is normal; one end of each power indicator light is connected to a preset N-phase terminal via a second conductor and a first fuse, and the other end is connected to the upper side of the corresponding phase connection terminal in the ABC three-phase connection terminals of the molded case circuit breaker via a third conductor.

[0008] The first connection plate is also equipped with ABC three-phase voltmeters for visually observing the three-phase output voltage of the generator; one end of each phase voltmeter is connected to a preset N-phase terminal through a fourth conductor and a second fuse, and the other end is connected to the upper side of the corresponding phase connection terminal in the ABC three-phase connection terminals of the molded case circuit breaker through a fifth conductor.

[0009] The AC busbar inlet hole on the base has an L-shaped outline, with one opening located on the side wall of the base and the other opening located on the top wall of the base and communicating with the second opening on the bottom wall of the enclosure.

[0010] The base also has multiple vent holes, each corresponding to the second opening; wherein, Each vent has an L-shaped outline, with one opening located on the side wall of the base and the other opening located on the top wall of the base, communicating with the second opening on the bottom wall of the housing.

[0011] The base has exhaust holes equipped with filters.

[0012] The base also has multiple drainage holes, each corresponding to the second opening; Each drainage hole has an L-shaped outline, with one opening located on the side wall of the base and the other opening located on the top wall of the base, communicating with the second opening on the bottom wall of the box.

[0013] The door of the box is a transparent glass door.

[0014] Implementing the embodiments of the present invention has the following beneficial effects: In this invention, the AC busbar that has lost power passes through the AC busbar inlet hole on the base, enters the enclosure through the second opening, and is connected to the three second insertion terminals formed on the lower side of the ABC three-phase connection terminals inside the enclosure. After opening the enclosure door, the emergency cable led out by the external emergency generator is passed through the three emergency cable inlet holes inside the enclosure and connected to the three first insertion terminals formed on the lower side of the ABC three-phase connection terminals inside the enclosure. By controlling the opening and closing state of the molded case circuit breaker, the external emergency generator can be driven to supply power to or disconnect power to the busbar that has lost power, thereby realizing the rapid connection of the emergency generator to supply power to the busbar. This not only simplifies the workflow but also reduces the operational risk. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of the present invention.

[0016] Figure 1 This is a front view of an emergency generator connected to a power supply box, provided as an embodiment of the present invention. Figure 2 for Figure 1 A plan view showing the connection between the molded case circuit breaker fixed on the equipment mounting plate and the emergency cable junction box and AC busbar cable junction box; Figure 3 for Figure 1 Side sectional plan view; Figure 4 for Figure 1A 3D view of the central base. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0018] like Figures 1 to 4 As shown in the figure, an emergency generator access power supply box is proposed in an embodiment of the present invention, including a box body 1, a box door 2, and a base 3; wherein, The enclosure 1 has a closed structure. Its side wall has a first opening (not shown) for installing a door 2 (such as a transparent glass door), and its bottom wall has a second opening (not shown) to facilitate the entry and exit of AC busbar cables and the exhaust of internal heat and moisture. The first opening is either covered or exposed by the rotating door 2, and the second opening is covered by a base 3 fixed to the outside of the bottom wall of the enclosure 1. Simultaneously, an equipment mounting plate 11 is fixed between the top and bottom walls of the enclosure 1. This equipment mounting plate 11 is located between the first and second openings. A molded case circuit breaker 4 is fixed on the side facing the first opening (i.e., the side facing the door 2), and an emergency cable junction box 5 and an AC busbar cable junction box 6 are fixed on the side away from the first opening (i.e., the side away from the door 2). The molded case circuit breaker 4, the emergency cable junction box 5, and the AC busbar cable junction box 6 are all equipped with ABC three-phase connection terminals. Three cables L1~L3 are led out from the upper side of the ABC three-phase connection terminals in the molded case circuit breaker 4 and connected to the upper side of the ABC three-phase connection terminals in the emergency cable junction box 5. Three other cables L4~L6 are led out from the lower side of the ABC three-phase connection terminals in the molded case circuit breaker 4 and connected to the upper side of the ABC three-phase connection terminals in the AC busbar cable junction box 6. The lower side of the ABC three-phase connection terminals in the emergency cable junction box 5 is formed as the first insertion end A1, which corresponds to the three emergency cable inlet holes T1 reserved on the equipment mounting plate. The lower side of the ABC three-phase connection terminals in the AC busbar cable junction box 6 is formed as the second insertion end A2. An AC busbar inlet hole 31 is provided on the base 3, which corresponds to the second opening provided on the bottom wall of the enclosure 1. At this time, the outline of the AC busbar inlet hole 31 is L-shaped, with one opening end located on the side wall of the base 3 and the other opening end located on the top wall of the base 3 and communicating with the second opening provided on the bottom wall of the enclosure 1. The AC busbar to be de-energized (not shown) is inserted through the AC busbar inlet hole 31 of the base 3, enters the box 1 through the second opening, and is connected to the three second insertion terminals A2 formed on the lower side of the ABC three-phase connection terminals in the AC busbar cable access box 6. Then, the box door 2 is opened, and the emergency cable led out by the external emergency generator (not shown) is inserted into the three emergency cable inlet holes T1 and connected to the three first insertion terminals A1 formed on the lower side of the ABC three-phase connection terminals in the emergency cable access box 5. By controlling the opening and closing state of the molded case circuit breaker 4, the external emergency generator can be driven to supply power to or de-energize the de-energized busbar.

[0019] It should be noted that, with the ground as the reference point, the plane away from the ground is designated as the top wall, the plane facing the ground is designated as the bottom wall, and the plane between the top and bottom walls is designated as the side wall. Both the first insertion end A1 and the second insertion end A2 can be spring-loaded, automatically closing when not in use and opening directly when the cable is connected.

[0020] In this embodiment of the invention, the equipment mounting plate 11 includes a first connecting plate 110 and a second connecting plate 112; wherein, one side of the first connecting plate 110 is fixed to the top wall of the housing 1, and the other side is spliced ​​to one side of the second connecting plate 112 through a locking structure 7; the other side of the second connecting plate 112 is fixed to the bottom wall of the housing 1, and a molded case circuit breaker 4, an emergency cable access box 5, and an AC busbar cable access box 6 are fixed in the middle part.

[0021] At this time, the second connecting plate 112 is equipped with ABC three-phase voltage measuring sockets 1120 for measuring the three-phase output voltage of the generator; the ABC three-phase voltage measuring sockets 1120 are respectively connected to the upper side of the ABC three-phase connection terminals inside the molded case circuit breaker 4 through three first electrical wires (not shown).

[0022] At this time, the first connection plate 110 is equipped with ABC three-phase power indicator lights 1100 for visually indicating whether the three-phase output of the generator is normal; one end of each phase power indicator light 1110 is connected to the preset N-phase terminal through a second wire (not shown) and a first fuse (not shown), and the other end is connected to the upper side of the corresponding phase connection terminal in the ABC three-phase connection terminal in the molded case circuit breaker 4 through a third wire (not shown).

[0023] The first connecting plate 110 is also equipped with an ABC three-phase voltmeter 1102 for visually observing the three-phase output voltage value of the generator; one end of each phase voltmeter 1102 is connected to a preset N-phase terminal through a fourth conductor (not shown) and a second fuse (not shown), and the other end is connected to the upper side of the corresponding phase connection terminal in the ABC three-phase connection terminals in the molded case circuit breaker 4 through a fifth conductor (not shown).

[0024] In this embodiment of the invention, the base 3 is also provided with a plurality of exhaust holes 32, each corresponding to the second opening provided on the bottom wall of the housing 1; the outline of each exhaust hole 32 is L-shaped, with one opening end located on the side wall of the base 3 and the other opening end located on the top wall of the base 3 and communicating with the second opening provided on the bottom wall of the housing 1. Each exhaust hole 32 is provided with a filter screen (not shown).

[0025] At this time, the base 3 is also provided with multiple drainage holes 33, all of which correspond to the second opening provided on the bottom wall of the housing 1; the outline of each drainage hole 33 is L-shaped, with one opening end located on the side wall of the base 3 and the other opening end located on the top wall of the base 3 and communicating with the second opening provided on the bottom wall of the housing 1. It should be noted that the drainage holes 33 can also be used for drainage pipes inside the housing 1 (such as those of a temperature and humidity controller).

[0026] Understandably, a rain cap can also be installed on the exterior of the top wall of enclosure 1. A third opening is also provided on the side wall of enclosure 1 opposite the first opening to install another door 2 (such as an plexiglass door), which is opened and closed via a latch, allowing for front and rear observation of the interior of enclosure 1. A recessed space can also be formed on the lower side of the bottom wall of enclosure 1 as a cable access space, facilitating the connection of emergency cables.

[0027] Implementing the embodiments of the present invention has the following beneficial effects: In this invention, the AC busbar that has lost power passes through the AC busbar inlet hole on the base, enters the enclosure through the second opening, and is connected to the three second insertion terminals formed on the lower side of the ABC three-phase connection terminals inside the enclosure. After opening the enclosure door, the emergency cable led out by the external emergency generator is passed through the three emergency cable inlet holes inside the enclosure and connected to the three first insertion terminals formed on the lower side of the ABC three-phase connection terminals inside the enclosure. By controlling the opening and closing state of the molded case circuit breaker, the external emergency generator can be driven to supply power to or disconnect power to the busbar that has lost power, thereby realizing the rapid connection of the emergency generator to supply power to the busbar. This not only simplifies the workflow but also reduces the operational risk.

[0028] The above description discloses only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. An emergency generator connected to a power supply box, characterized in that, Includes the box body, door, and base; among which, The enclosure is a closed structure with a first opening on its side wall and a second opening on its bottom wall. The first opening is either covered or exposed by a rotatable door, and the second opening is covered by a base fixed to the outside of the bottom wall of the enclosure. A device mounting plate is fixed between the top and bottom walls of the enclosure. The device mounting plate is located between the first and second openings, and a molded case circuit breaker is fixed on the side facing the first opening. An emergency cable junction box and an AC busbar cable junction box are fixed on the side facing away from the first opening. Each of the molded case circuit breaker, the emergency cable junction box, and the AC busbar cable junction box contains a... The circuit breaker has three-phase (ABC) connection terminals, and three cables are led out from the upper side of the ABC three-phase connection terminals inside the molded case circuit breaker and connected to the upper side of the ABC three-phase connection terminals inside the emergency cable access box, respectively. Additionally, three more cables are led out from the lower side of the ABC three-phase connection terminals inside the molded case circuit breaker and connected to the upper side of the ABC three-phase connection terminals inside the AC busbar cable access box, respectively. The lower side of each of the ABC three-phase connection terminals inside the emergency cable access box is formed as a first insertion end, corresponding to the three emergency cable inlet holes pre-drilled on the equipment mounting plate. The lower side of each of the ABC three-phase connection terminals inside the AC busbar cable access box is formed as a second insertion end. The base has an AC busbar inlet hole, which corresponds to the second opening. The AC busbar to be de-energized is inserted through the AC busbar inlet hole on the base, enters the box through the second opening, and is connected to the three second insertion terminals formed on the lower side of the ABC three-phase connection terminals inside the AC busbar cable access box. Then, the box door is opened, and the emergency cable led out from the external emergency generator is inserted into the three emergency cable inlet holes and connected to the three first insertion terminals formed on the lower side of the ABC three-phase connection terminals inside the emergency cable access box. By controlling the opening and closing state of the molded case circuit breaker, the external emergency generator can be driven to supply power to or de-energize the de-energized busbar.

2. The emergency generator connected to the power supply box as described in claim 1, characterized in that, The equipment mounting plate includes a first connecting plate and a second connecting plate; wherein... One side of the first connecting plate is fixed to the top wall of the box, and the other side is spliced ​​to one side of the second connecting plate through a locking structure; The other side of the second connecting plate is fixed to the bottom wall of the box, and the molded case circuit breaker, the emergency cable access box and the AC busbar cable access box are fixed in the middle part of the plate.

3. The emergency generator connected to the power supply box as described in claim 2, characterized in that, The second connection plate is equipped with ABC three-phase voltage measurement sockets for measuring the three-phase output voltage of the generator; the ABC three-phase voltage measurement sockets are respectively connected to the upper side of the ABC three-phase connection terminals inside the molded case circuit breaker through three first electrical wires.

4. The emergency generator connected to the power supply box as described in claim 3, characterized in that, The first connection plate is equipped with ABC three-phase power indicator lights for visually indicating whether the three-phase output of the generator is normal; one end of each power indicator light is connected to the preset N-phase terminal through a second wire and a first fuse, and the other end is connected to the upper side of the corresponding phase connection terminal in the ABC three-phase connection terminal in the molded case circuit breaker through a third wire.

5. The emergency generator connected to the power supply box as described in claim 4, characterized in that, The first connection plate is also equipped with ABC three-phase voltmeters for visually observing the three-phase output voltage value of the generator; one end of each phase voltmeter is connected to the preset N-phase terminal through a fourth conductor and a second fuse, and the other end is connected to the upper side of the corresponding phase connection terminal in the ABC three-phase connection terminals of the molded case circuit breaker through a fifth conductor.

6. The emergency generator connected to the power supply box as described in claim 5, characterized in that, The AC busbar inlet hole on the base has an L-shaped outline. One opening is located on the side wall of the base, and the other opening is located on the top wall of the base and communicates with the second opening on the bottom wall of the enclosure.

7. The emergency generator connected to the power supply box as described in claim 6, characterized in that, The base is also provided with multiple vent holes, all of which correspond to the second opening; wherein, Each vent has an L-shaped outline, with one opening located on the side wall of the base and the other opening located on the top wall of the base, communicating with the second opening on the bottom wall of the housing.

8. The emergency generator connected to the power supply box as described in claim 7, characterized in that, Each of the exhaust holes on the base is equipped with a filter screen.

9. The emergency generator connected to the power supply box as described in claim 8, characterized in that, The base is also provided with multiple drainage holes, all of which correspond to the second opening; wherein, Each drainage hole has an L-shaped outline, with one opening located on the side wall of the base and the other opening located on the top wall of the base, communicating with the second opening on the bottom wall of the box.

10. The emergency generator connected to the power supply box as described in claim 9, characterized in that, The door of the box is a transparent glass door.

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