Upper isolation three-station miniaturized environment-friendly gas cabinet emergency electricity taking cabinet

Abstract

The utility model discloses an upper isolation three-station miniaturized environment-friendly gas cabinet emergency electricity taking cabinet, which belongs to the technical field of voltage transformer cabinets, and comprises a cabinet body, two groups of gas boxes and a cable compartment are respectively arranged in the inner cavity of the cabinet body, the inner cavity of one group of gas box is provided with a common power supply assembly used for a main electrifying structure, and the inner cavity of the other group of gas box is provided with a cable compartment. A standby power supply assembly used for a standby power-on structure is arranged in the inner cavity of the other group of gas box, the common power supply assembly comprises a common isolating switch, a circuit breaker module, a first bus, a common side expansion sleeve and a wire outlet sleeve, the isolating switch is installed in the inner cavity of the gas box, and the top end of the isolating switch is connected with the side expansion sleeve through an isolating contact; the bottom end of the isolating switch is connected with a vacuum arc extinguish chamber of the circuit breaker module, the circuit breaker module is connected with the first bus through flexible connection, the other end of the first bus is connected with the wire outlet sleeve, and the other end of the wire outlet sleeve is connected with an external power supply, so that a power supply system is quickly recovered, and the influence on life and property of personnel is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of voltage transformer cabinet, specifically to the upper isolation three position miniaturized environmental protection gas cabinet emergency power taking cabinet. BACKGROUND

[0002] In the power system, the voltage transformer (PT) is an indispensable device, which can convert high voltage into low voltage for the measurement and protection of instruments and protection devices. The voltage transformer cabinet is generally directly installed on the busbar to detect the busbar voltage and realize the protection function.

[0003] The voltage transformer cabinet (PT cabinet) is an indispensable part of power grid work. If a sudden situation occurs during the operation of the voltage transformer cabinet, the power supply end power is cut off and cannot be restored in a short time, which will cause the power supply system below the power supply end to be completely paralyzed, and some primary power load units such as hospitals and mines will be seriously affected, causing great impact on personnel's life and property.

[0004] According to the voltage transformer cabinet with announcement number CN220122468U, including: cabinet, limit the first air chamber and the second air chamber, the first air chamber is superimposed on the second air chamber;Grounding switch, installed in the first air chamber and including: first main circuit conductive row;First grounding static contact, engaging the first main circuit conductive row;First movable contact, movably installed in the first air chamber and can be engaged or separated with the first grounding static contact;First grounding assembly, electrically connected to the first movable contact in the first air chamber;Three position switch, installed in the second air chamber and including: second main circuit conductive row, electrically connected to the first main circuit conductive row;Main static contact, engaging the second main circuit conductive row;Second grounding static contact, opposite to the main static contact;Second movable contact, movably installed in the second air chamber and can be selectively engaged or separated with the main static contact or the second grounding static contact;Third main circuit conductive row, electrically connected to the second movable contact;Second grounding assembly, electrically connected to the second grounding static contact in the second air chamber.

[0005] According to the above-mentioned voltage transformer cabinet, if a sudden situation occurs during the operation, the power supply end power is cut off and cannot be restored in a short time, which will cause the power supply system below the power supply end to be completely paralyzed, and some primary power load units such as hospitals and mines will be seriously affected, causing great impact on personnel's life and property, so we need to put forward the upper isolation three position miniaturized environmental protection gas cabinet emergency power taking cabinet. Utility model content

[0006] The utility model discloses a purpose lies in providing upper isolation three position miniaturization environmental protection gas cabinet emergency power taking cabinet, has increased emergency power taking function on the basis of traditional voltage transformer cabinet, when the power supply system of ordinary power supply component is paralyzed, the spare power supply component is connected to the external power supply, then through the copper bar connection spare load switch forms a new electrification circuit, therefore after the ordinary circuit breaker, the spare power supply can realize quick electrification through the spare power supply component, thereby makes the power supply system quick recovery, reduces the influence to the life and property of personnel, to solve the problem of above -mentioned background art.

[0007] To realize above -mentioned purpose, the utility model provides the following technical scheme: upper isolation three position miniaturization environmental protection gas cabinet emergency power taking cabinet, including the cabinet body, the inner chamber of cabinet body is provided with gas tank and cable compartment respectively, the inner chamber of one group of gas tank is provided with the ordinary power supply component for main electrification structure, the other end electric connection of ordinary power supply component has ordinary power supply, the inner chamber of another group of gas tank is provided with the spare power supply component for spare electrification structure, the other end electric connection of spare power supply component has spare power supply, the ordinary power supply component includes ordinary isolator, circuit breaker module, first bus, ordinary side expansion sleeve pipe and outgoing line sleeve pipe, the inner chamber of isolator is installed in gas tank, the top of isolator is connected with side expansion sleeve pipe through isolation contact, the bottom of isolator is connected with vacuum interrupter of circuit breaker module, the first bus is connected with outgoing line sleeve pipe through soft connection, the other end of first bus is connected with outgoing line sleeve pipe, and the other end of outgoing line sleeve pipe is connected with external power supply.

[0008] Preferably, the spare power supply component includes a spare isolator, a second bus, a spare side expansion sleeve pipe, and a quick power taking sleeve pipe, the top of the spare isolator is connected to the spare side expansion sleeve pipe through an isolation contact, the bottom of the spare isolator is connected to the second bus, and the other end of the second bus is connected to the quick power taking sleeve pipe.

[0009] Preferably, the ordinary power supply component and the spare power supply component are both connected to the top of the isolation contact through copper bars, and the ordinary power supply component and the spare power supply component are both enclosed in the inner chamber of the gas tank.

[0010] Preferably, the inner chamber of the cable compartment is provided with a voltage transformer and a current transformer, the outgoing line sleeve pipe and the quick power taking sleeve pipe both penetrate the gas tank and extend to the bottom of the cabinet body to be connected to the external power supply, and the outgoing line sleeve pipe and the quick power taking sleeve pipe are both arranged at the top of the cable compartment.

[0011] Preferably, the bottom of the cabinet body is provided with a pressure relief chamber, and the inner chamber of the pressure relief chamber is provided with a pressure relief channel.

[0012] Preferably, the top end of the cabinet is provided with mechanism operation room, the mechanism operation room is provided with isolation mechanism and circuit breaker mechanism, the mechanism operation room is provided with two groups, and the two groups of mechanism operation rooms correspond to commonly used power supply assembly and standby power supply assembly.

[0013] Preferably, the cabinet is composed of aluminum-zinc plate, the gas tank is located at the top end of the cabinet, and the inner cavity of the gas tank is filled with dry environment-friendly gas.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The utility model discloses a three-position small -size environmental protection gas cabinet of isolation of emergent power taking of upper isolation, through the cooperation of commonly used power supply assembly and standby power supply assembly, when commonly used power supply assembly power supply system paralysis, external power supply connects standby power supply assembly, and then forms a new power circuit through copper bar connection standby load switch, and therefore, after the commonly used circuit is opened, standby power supply can realize quick power -on through standby power supply assembly, thereby making power supply system restore quickly, and reducing the influence on personnel's life and property.

[0016] Other features and advantages of the present application will be further described in the following specification, and some of them become apparent from the specification, or are understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structure indicated in the specification and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic view of the utility model;

[0018] Figure 2 It is the structure schematic view of commonly used power supply assembly of the utility model;

[0019] Figure 3 It is the structure schematic view of standby power supply assembly of the utility model;

[0020] Figure 4 It is the structure schematic view of the local section of cable compartment.

[0021] In the drawing: 1, cabinet;2, gas tank;3, cable compartment;4, commonly used power supply assembly;41, commonly used isolation switch;42, circuit breaker module;43, first bus;44, commonly used side expansion sleeve pipe;45, outgoing line sleeve pipe;46, isolation contact;5, standby power supply assembly;51, standby isolation switch;52, second bus;53, standby side expansion sleeve pipe;54, quick power taking sleeve pipe;6, voltage transformer;7, current transformer;8, pressure relief chamber;9, mechanism operation room;10, isolation mechanism;11, circuit breaker mechanism. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0023] Please refer to Figures 1-4 As shown in the figure, the utility model provides a kind of upper isolation three station miniaturization environmental protection gas cabinet emergency power supply cabinet, including cabinet 1, the inner chamber of cabinet 1 is separately provided with gas tank 2 and cable compartment 3, gas tank 2 is provided with two groups, the inner chamber of one group of gas tank 2 is provided with the normal power supply assembly 4 for main power-on structure, the other end of normal power supply assembly 4 is electrically connected with normal power supply, the inner chamber of another group of gas tank 2 is provided with standby power supply assembly 5 for standby power-on structure, the other end of standby power supply assembly 5 is electrically connected with standby power supply, normal power supply assembly 4 includes normal disconnecting switch 41, circuit breaker module 42, first bus 43, normal side expansion sleeve pipe 44 and outgoing line sleeve pipe 45, disconnecting switch is installed in the inner chamber of gas tank 2, the top end of disconnecting switch is connected with side expansion sleeve pipe through isolation contact 46, the bottom end of disconnecting switch is connected with vacuum interrupter of circuit breaker module 42, circuit breaker module 42 is connected with first bus 43 through flexible connection, the other end of first bus 43 is connected with outgoing line sleeve pipe 45, the other end of outgoing line sleeve pipe 45 is connected with external power supply.

[0024] When normal power supply assembly 4 power supply system is paralyzed, external power supply connects standby power supply assembly 5, and then a new power-on circuit is formed by connecting standby load switch through copper bar, so that standby power supply can realize rapid power-on through standby power supply assembly 5 after normal circuit is opened, so that power supply system is quickly recovered, and the influence on personnel's life and property is reduced.

[0025] Standby power supply assembly 5 includes standby disconnecting switch 51, second bus 52, standby side expansion sleeve pipe 53 and rapid power supply sleeve pipe 54, the top end of standby disconnecting switch 51 is connected to standby side expansion sleeve pipe 53 through isolation contact 46, the bottom end of standby disconnecting switch 51 is connected with second bus 52, the other end of second bus 52 is connected with rapid power supply sleeve pipe 54, when normal power supply assembly 4 power supply system spring, open standby disconnecting switch 51, so that second bus 52, standby side expansion sleeve pipe 53 and rapid power supply sleeve pipe 54 are combined into standby line, so that standby power supply can realize rapid power-on through standby power supply assembly 5 after normal circuit is opened.

[0026] The normal power supply assembly 4 and the standby power supply assembly 5 are connected to the top end of the isolation contact 46 through copper bars, and are enclosed in the inner cavity of the gas tank 2. The normal power supply assembly 4 and the standby power supply assembly 5 are arranged at the top end of the isolation contact 46 through copper bars, facilitating subsequent switching of the normal power supply and the standby power supply. The normal power supply assembly 4 and the standby power supply assembly 5 are enclosed in the inner cavity of the gas tank 2, improving the protection effect of the normal power supply assembly 4 and the standby power supply assembly 5.

[0027] The inner cavity of the cable compartment 3 is provided with a voltage transformer 6 and a current transformer 7. The outgoing line bushing 45 and the quick power taking bushing 54 penetrate the gas tank 2 and extend to the bottom end of the cabinet body 1 to connect with an external power source. The outgoing line bushing 45 and the quick power taking bushing 54 are arranged at the top end of the cable compartment 3. The voltage transformer 6 and the current transformer 7 are protected by the cable compartment 3. The voltage transformer 6 and the current transformer 7 cooperate to change the voltage and current generated by the switching of the normal circuit and the standby circuit.

[0028] The bottom end of the cabinet body 1 is provided with a pressure relief chamber 8. The inner cavity of the pressure relief chamber 8 is provided with a pressure relief channel. The pressure relief chamber 8 is arranged to discharge the gas in the gas tank 2 to avoid excessive pressure in the gas tank 2.

[0029] The top end of the cabinet body 1 is provided with a mechanism operation chamber 9. The mechanism operation chamber 9 is provided with an isolation mechanism 10 and a circuit breaker mechanism 11. The mechanism operation chamber 9 is provided with two groups. The two groups of mechanism operation chambers 9 are arranged corresponding to the normal power supply assembly 4 and the standby power supply assembly 5. The isolation mechanism 10, the circuit breaker mechanism 11 and the lower door are connected by interlocking. Only when the isolation mechanism 10 and the circuit breaker mechanism 11 are in the open state at the same time, the lower door can be opened, and the maintenance personnel can open the door for maintenance work.

[0030] The cabinet body 1 is composed of aluminum-zinc coated plates. The gas tank 2 is located at the top end of the cabinet body 1. The inner cavity of the gas tank 2 is filled with dry and environmentally friendly gas. The use of aluminum-zinc coated plates increases the corrosion resistance of the cabinet body 1. The inner cavity of the gas tank 2 is filled with dry and environmentally friendly gas. The dry air replaces the SF6 gas as the medium in the cabinet body 1, completely solving the problem of SF6 pollution to the atmosphere. The cabinet body 1 uses environmentally friendly materials. The blade connection shells and arc extinguishing chamber supports between circuits are made of recyclable organic polymer materials, greatly improving the environmental protection level.

[0031] Specific use: when the common power supply system is paralyzed, the common isolating switch 41 is closed, the common circuit is closed, then the standby isolating switch 51 is opened, the second bus 52, the standby side expansion sleeve pipe 53 and the quick power taking sleeve pipe 54 are combined into a standby circuit, the external power supply is connected to the quick power taking sleeve pipe 54, and a new power-on circuit is formed through the copper bar connection standby load switch, thus after the common circuit is tripped, the standby power supply can be quickly powered on through the standby power supply assembly 5, so that the power supply system is quickly restored, and the influence on the life and property of personnel is reduced.

[0032] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A miniaturized, environmentally friendly gas cabinet with three isolated working positions for emergency power supply, comprising a cabinet body (1), characterized in that: The inner cavity of the cabinet body (1) is respectively provided with a gas tank (2) and a cable compartment (3), the gas tank (2) is provided with two groups, one group of the inner cavity of the gas tank (2) is provided with a normal power supply assembly (4) for a main power supply structure, the other end of the normal power supply assembly (4) is electrically connected with a normal power supply, the other group of the inner cavity of the gas tank (2) is provided with a standby power supply assembly (5) for a standby power supply structure, the other end of the standby power supply assembly (5) is electrically connected with a standby power supply, the normal power supply assembly (4) comprises a normal isolating switch (41), a circuit breaker module (42), a first bus (43), a normal side expansion sleeve (44) and an outgoing sleeve (45), the isolating switch is installed in the inner cavity of the gas tank (2), the top end of the isolating switch is connected with the side expansion sleeve through an isolation contact (46), the bottom end of the isolating switch is connected with a vacuum arc-extinguishing chamber of the circuit breaker module (42), the circuit breaker module (42) is connected with the first bus (43) through a flexible connection, the other end of the first bus (43) is connected with the outgoing sleeve (45), and the other end of the outgoing sleeve (45) is connected with an external power supply.

2. The upper isolation three-station miniaturized environmentally friendly gas cabinet emergency power supply cabinet according to claim 1, characterized in that: The standby power supply assembly (5) comprises a standby isolating switch (51), a second bus (52), a standby side expansion sleeve (53) and a quick power taking sleeve (54), the top end of the standby isolating switch (51) is connected to the standby side expansion sleeve (53) through the isolation contact (46), the bottom end of the standby isolating switch (51) is connected with the second bus (52), and the other end of the second bus (52) is connected with the quick power taking sleeve (54).

3. The upper isolation three-station miniaturized environmentally friendly gas cabinet emergency power supply cabinet according to claim 1, characterized in that: The normal power supply assembly (4) and the standby power supply assembly (5) are connected with the top end of the isolation contact (46) through a copper bar, and the normal power supply assembly (4) and the standby power supply assembly (5) are enclosed in the inner cavity of the gas tank (2).

4. The upper isolation three-station miniaturized environmentally friendly gas cabinet emergency power supply cabinet according to claim 2, characterized in that: The inner cavity of the cable compartment (3) is respectively provided with a voltage transformer (6) and a current transformer (7), the outgoing sleeve (45) and the quick power taking sleeve (54) penetrate through the gas tank (2) and extend to the bottom end of the cabinet body (1) to be connected with an external power supply, and the outgoing sleeve (45) and the quick power taking sleeve (54) are arranged at the top end of the cable compartment (3).

5. The upper isolation three-station miniaturized environmentally friendly gas cabinet emergency power supply cabinet according to claim 1, characterized in that: The bottom end of the cabinet body (1) is provided with a pressure relief chamber (8), and the inner cavity of the pressure relief chamber (8) is provided with a pressure relief channel.

6. The upper isolation three-station miniaturized environmentally friendly gas cabinet emergency power supply cabinet according to claim 1, characterized in that: The top end of the cabinet body (1) is provided with a mechanism operation chamber (9), the mechanism operation chamber (9) is provided with an isolation mechanism (10) and a circuit breaker mechanism (11), and the mechanism operation chamber (9) is provided with two groups, and the two groups of mechanism operation chambers (9) correspond to the normal power supply assembly (4) and the standby power supply assembly (5).

7. The upper isolation three-station miniaturized environmentally friendly gas cabinet emergency power off cabinet according to claim 1, characterized in that: The cabinet body (1) is composed of an aluminum-zinc plate, the gas tank (2) is located at the top end of the cabinet body (1), and the inner cavity of the gas tank (2) is filled with dry environment-friendly gas.

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