CN204886389U - Low pressure user emergency power source quick access device - Google Patents

Abstract

The utility model discloses a quick access device for a low-voltage user emergency power supply, which comprises a cabinet body with an outer door. The cabinet body is provided with a four-pole knife switch, and the knife switch is provided with a main power supply input terminal and a user power supply output terminal. and the emergency power input end, the middle part of the cabinet body is provided with a fixed beam for fixing the knife switch, and the upper part of the cabinet body is provided with a plug-in quick-connect socket connected to the emergency power input end, and there is also an inner switch between the knife switch and the outer door. The door is provided with a rotary handle to control the switch state of the knife on the inner door. The utility model has the advantages that the fast connection between the main power supply and the standby power supply is realized by using the quick-connect socket and the knife switch, the time for connecting the standby power supply is greatly shortened, and the emergency power supply connection time for low-voltage users is effectively reduced. It provides a strong guarantee for power supply, provides convenience for emergency rescue and disaster relief and emergency response work, and greatly improves the reliability and quality of power supply and high-quality service level of the power sector.

Description

Low-voltage user emergency power quick access device

technical field

The utility model relates to a quick access device for a low-voltage user emergency power supply.

Background technique

In August 2014, Liandu District of Lishui City was hit by a once-in-50-year catastrophic flood. From 8:00 on August 19 to 8:00 on August 20, the rainfall in Lishui in the Oujiang River Basin reached 123 millimeters, and the rainfall in Liandu City was 153.6 millimeters. , causing about 10 square kilometers of Liandu city to be flooded. The "8.20" catastrophic flood had a serious impact on Liandu power grid. During the period, 4 faults tripped and 25 10kV lines were shut down, involving 260 power outage station areas, 47 power outage administrative villages, and 28,897 power outage households.

One of the main reasons for the large-scale power outage in Liandu District is that some community switch stations and distribution stations are located in low-lying areas and are severely flooded, and the power equipment is damaged and cannot supply power. When the permanent power supply is flooded and blackout, the power supply of low-voltage users cannot be restored for a long time because the emergency power supply cannot be quickly connected.

Therefore, shortening the access time of emergency power supply for low-voltage users is a difficult problem for distribution network repair personnel.

Utility model content

The purpose of the utility model is to provide a quick access device for low-voltage user emergency power supply, which can effectively solve the problem that the low-voltage user power supply cannot be restored for a long time because the emergency power supply cannot be quickly connected when the permanent power supply is flooded and cut off.

In order to solve the above-mentioned technical problems, the utility model is realized through the following technical solutions: a quick access device for low-voltage user emergency power supply, including a cabinet body with an outer door, a four-pole knife switch is arranged in the cabinet body, and a There are main power supply input terminals, user power output terminals and emergency power input terminals. The middle part of the cabinet is equipped with a fixed beam with a fixed knife switch. An inner door is also arranged between the knife switch and the outer door, and the inner door is provided with a rotary handle for controlling the state of the knife switch.

Preferably, a dust cover is provided at the position corresponding to the quick-connect socket on the upper part of the inner door; to prevent dust from entering the quick-connect socket and ensure the effectiveness of the quick-connect socket when in use.

Preferably, the upper part of the inner door is also provided with signal lamps showing the operating status of the equipment in the cabinet, and a label frame is provided on the cabinet below each signal lamp; so that the operator can clearly know the current operating status.

Preferably, the bottom of the cabinet is provided with a cable inlet hole and a user cable outlet hole; it is convenient to install cables, and all go underground to reduce the probability of cable damage.

Preferably, copper bars are used to connect the quick-connect socket and the input end of the emergency power supply; compared with aluminum bars and copper cables, copper bars have better conductivity and higher carrying capacity.

Preferably, the left and right sides of the cabinet are provided with uprights, the uprights are provided with a number of fixing holes along the vertical direction, the fixed beams are arranged between the uprights on the left and right sides, and the fixed beams are connected to the uprights through bolts; It is convenient to adjust the fixed beam to a suitable position for installation.

Compared with the prior art, the utility model has the following advantages: the device has a simple structure and is easy to manufacture, and adopts a quick-connect socket and a knife switch to realize fast connection between the main power supply and the backup power supply, and the time for connecting the backup power supply is reduced from the previous average of 70 minutes Reduced to an average of 44 minutes, effectively shortening the emergency power supply access time of low-voltage users, providing a strong guarantee for the power supply of residents in low-lying urban areas during the flood season, providing convenience for emergency rescue and emergency response work, and greatly improving the power supply reliability of the power sector quality and service level.

Description of drawings

Fig. 1 is the front view (not including the outer door) of the utility model low-voltage user emergency power supply fast access device;

Fig. 2 is the left side view of the utility model low-voltage user emergency power quick access device (not including the cabinet body and the outer door);

Fig. 3 is a structural diagram of the utility model when the emergency power supply quick access device for low-voltage users opens the inner door.

Detailed ways

Referring to Fig. 1, Fig. 3 is the embodiment of the utility model low-voltage user emergency power quick access device, the low-voltage user emergency power quick access device comprises the cabinet body 1 with outer door, and described cabinet body 1 is provided with quadrupole The knife switch 2 is provided with a main power supply input terminal 3, a user power supply output terminal 4 and an emergency power supply input terminal 5 on the knife switch 2, and a fixed crossbeam 6 for fixing the knife switch 2 is provided in the middle of the cabinet body 1, and the cabinet body 1 The inner upper part is provided with a plug-in quick-connect socket 7 connected to the input terminal 5 of the emergency power supply. The quick-connect socket 7 is connected to the input terminal 5 of the emergency power supply by a copper bar 15. Also be provided with inner door 8, described inner door 8 is provided with the rotary handle 9 of control knife switch 2 states, described inner door 8 top is provided with dustproof cover 10 with the corresponding position of fast connection socket 7, described inner The upper part of the door 8 is also provided with a signal lamp 11 showing the operating status of the equipment in the cabinet body 1. A label frame 12 is provided on the cabinet body 1 below each signal lamp 11. The bottom of the cabinet body 1 is provided with a cable entry hole 13 and a user cable. Exit hole 14.

As shown in Figure 2, the left and right sides of the cabinet body 1 are provided with columns 16, and the columns 16 are provided with a number of fixing holes 17 along the vertical direction, and the fixed beams 6 are arranged between the columns 16 on the left and right sides. Between, the fixed beam 6 is connected with the column 16 by bolts.

Install the device outdoors. When the main power supply fails, the maintenance personnel will arrive at the scene. Just connect the backup power supply to the emergency power input terminal 5 through the quick-connect socket 7, and then adjust the rotary handle 9 to switch the backup power supply to the user. The power supply output terminal 4 is connected to realize fast power supply for the user. The device has a simple structure and is easy to manufacture. It uses quick-connect sockets and knife switches to realize quick connection between the main power supply and the backup power supply. The time for connecting the backup power supply is reduced from the previous average of 70 minutes to an average of 44 minutes, which effectively shortens the emergency power supply for low-voltage users. The connection time provides a strong guarantee for the power supply of residents in low-lying urban areas during the flood season, provides convenience for emergency rescue and disaster relief and emergency response work, and greatly improves the reliability and quality of power supply and high-quality service levels of the power sector.

The above is only a specific embodiment of the utility model, but the technical characteristics of the utility model are not limited thereto, and any changes or modifications made by those skilled in the art within the scope of the utility model are all covered by the utility model. In the scope of the new patent.

Claims (6)

1. A low-voltage user emergency power supply quick access device, characterized in that: it includes a cabinet (1) with an outer door, the cabinet (1) is provided with a four-pole knife switch (2), and the knife switch (2 ) is provided with main power supply input terminal (3), user power supply output terminal (4) and emergency power supply input terminal (5), and a fixed beam (6) with a fixed knife switch (2) in the middle of the cabinet body (1) , the upper part of the cabinet body (1) is provided with a plug-in quick-connect socket (7) connected to the input terminal (5) of the emergency power supply, and an inner door (8) is also provided between the knife switch (2) and the outer door , the inner door (8) is provided with a rotary handle (9) for controlling the state of the knife switch (2). 2. The quick access device for emergency power supply for low-voltage users according to claim 1, characterized in that: a dust cover (10) is provided on the upper part of the inner door (8) corresponding to the quick-connect socket (7). 3. The low-voltage user emergency power supply quick access device according to claim 1, characterized in that: the upper part of the inner door (8) is also provided with a signal light (11) to display the operating status of the equipment in the cabinet (1), and each A label frame (12) is provided on the cabinet (1) below the signal lights (11). 4. The low-voltage user emergency power supply quick access device according to claim 1, characterized in that: the bottom of the cabinet body (1) is provided with a cable inlet hole (13) and a user cable outlet hole (14). 5. The quick access device for emergency power supply for low-voltage users according to claim 1, characterized in that: the quick-connect socket (7) is connected to the input end (5) of the emergency power supply by a copper bar (15). 6. The low-voltage user emergency power supply quick access device according to claim 1, characterized in that: the left and right sides of the cabinet (1) are provided with uprights (16), and the upper edge of the uprights (16) is vertically There are some fixed holes (17) in the vertical direction, and the fixed beam (6) is arranged between the left and right sides columns (16), and the fixed beam (6) is connected with the column (16) by bolts.