24kV upper isolation circuit breaker ring main unit

Abstract

The utility model discloses a 24kV upper isolation circuit breaker ring main unit which comprises a mechanism compartment, a switch air chamber and a cable compartment. According to the utility model, the mechanism compartment, the switch air chamber and the cable compartment are arranged in a separated manner, so that the ring main unit can be arranged in a tidy and isolated manner, the problem that the interior of the ring main unit is disordered is reduced, and when a fault occurs subsequently, the fault position can be quickly scented; according to the ring main unit, when a cable compartment is electrified, interlocking and locking activities can be achieved, workers are prevented from entering the electrified compartment by mistake, and the electric shock danger is avoided, and due to the arrangement of the passive electromagnetic lock, the grounding operation hole can be locked when the outgoing line sleeve is electrified, and auxiliary strengthening of the use safety of the ring main unit is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit breaker ring main unit technical field, concretely is a 24kV upper isolation circuit breaker ring main unit. BACKGROUND

[0002] The circuit breaker is mainly used for the current switch on the industrial equipment, and will automatically short circuit when the current short circuit or fault occurs on the industrial equipment, so as to ensure the safety of the industrial equipment, and the circuit breaker cabinet is a switch cabinet for installing the short circuit switch, mainly used for installing multiple circuit breakers in the switch cabinet, facilitating the concentration and use between different industrial equipment, so that the circuit breaker can be better managed, but the prior art has the following disadvantages:

[0003] The current circuit breaker ring main unit is insufficient for the separation of equipment, that is, the division of the area is poor, so that the inside of the cabinet is messy, and it is difficult to find the problem place during subsequent maintenance. UTILITY MODEL CONTENTS

[0004] The utility model discloses a 24kV upper isolation circuit breaker ring main unit to solve the problems in the background art.

[0005] In order to realize the above object, the utility model adopts the following technical scheme: a 24kV upper isolation circuit breaker ring main unit, including mechanism compartment, switch gas chamber and cable compartment, the mechanism compartment rear side is provided with switch gas chamber, the mechanism compartment and switch gas chamber lower extreme are connected with cable compartment, the mechanism compartment includes first cabinet, first cabinet door, display, fault indicator, barometer, passive electromagnetic lock, isolation mechanism and circuit breaker, the first cabinet door is rotatably connected on the front side of the first cabinet, the first cabinet is installed with display and fault indicator on the upper end respectively, and the display and fault indicator are oppositely arranged, the barometer is installed on the front side upper end of the first cabinet door, the passive electromagnetic lock is arranged on the front side middle part of the first cabinet door, the isolation mechanism is arranged on the inside upper end of the first cabinet, and the circuit breaker is installed on the inside lower end of the first cabinet.

[0006] Preferably, the switch gas chamber includes a second cabinet, an expansion connector and a circuit breaker switch, the second cabinet is butted on the rear side of the first cabinet, the expansion connector is arranged on the inside upper end of the second cabinet, and the circuit breaker switch is arranged on the inside lower end of the second cabinet.

[0007] Preferably, the cable compartment includes a third cabinet, a second cabinet door and an outgoing cable sleeve, the third cabinet is butted on the lower end of the first cabinet and the second cabinet, the second cabinet door is rotatably connected on the front side of the third cabinet, the outgoing cable sleeve is arranged in the third cabinet, and the outgoing cable sleeve is connected with the inside of the second cabinet on the upper end.

[0008] Preferably, the isolation mechanism interlocks the first cabinet body and the first cabinet door, and the isolation mechanism is electrically connected with the display.

[0009] Compared with the prior art, the utility model has the beneficial effects that:

[0010] 1、 the utility model discloses a mechanism compartment, switch gas chamber and cable compartment are set apart, can realize ring main unit neat isolation setting, reduce ring main unit inside disorder problem, and when subsequent fault problem appears, realize the quick regulation of fault position, and through the setting of display, fault indicator and isolation mechanism, when the cable compartment appears live condition, realize interlocking locking activity, prevent staff from entering live compartment, appear electric shock danger, and the setting of passive electromagnetic lock can lock ground operation hole when the outgoing line sleeve is live, realize the auxiliary strengthening of ring main unit use safety.

[0011] 2、 the isolation circuit breaker cabinet of the utility model is different from conventional SF6 switch cabinet, and the switch bus side is vacuum bubble open, thereby, can reduce the problem caused by fault current open. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structure schematic diagram of the utility model;

[0013] Figure 2 It is the left view structure schematic diagram of the utility model;

[0014] Figure 3 It is the front view internal structure schematic diagram of the utility model;

[0015] Figure 4 It is the left view internal structure schematic diagram of the utility model.

[0016] In the drawing: mechanism compartment-1, first cabinet body-11, first cabinet door-12, display-13, fault indicator-14, barometer-15, passive electromagnetic lock-16, isolation mechanism-17, circuit breaker-18, switch gas chamber-2, second cabinet body-21, expansion connector-22, circuit breaker switch-23, cable compartment-3, third cabinet body-31, second cabinet door-32, outgoing line sleeve-33. DETAILED DESCRIPTION

[0017] In order to further explain the technical scheme of the utility model, the following specific embodiment is described in detail.

[0018] Please refer to Figures 1-4The utility model provides a kind of 24kV upper isolation circuit breaker ring network cabinet, including mechanism compartment 1, switch gas chamber 2 and cable compartment 3, mechanism compartment 1 rear side is provided with switch gas chamber 2, mechanism compartment 1 with switch gas chamber 2 lower end is connected with cable compartment 3, mechanism compartment 1 includes first cabinet body 11, first cabinet door 12, display 13, fault indicator 14, barometer 15, passive electromagnetic lock 16, isolation mechanism 17 and circuit breaker 18, first cabinet body 11 front side is rotatably connected with first cabinet door 12, first cabinet body 11 upper end is respectively installed with display 13 and fault indicator 14, and display 13 and fault indicator 14 are left and right opposite arrangement, first cabinet door 12 left front side upper end is equipped with barometer 15, first cabinet door 12 front side middle part is equipped with passive electromagnetic lock 16, first cabinet body 11 inside upper end is equipped with isolation mechanism 17, and first cabinet body 11 inside lower end is equipped with circuit breaker 18.

[0019] Display 13 is high-voltage live display, which can display whether high-voltage circuit such as circuit breaker, bus and other components is live in real time, and intuitively reflect the running state of electrical equipment through light bulb on-off or signal lamp, and can be linked with isolation mechanism 17 to interlock and lock the compartment to prevent personnel from entering live compartment by mistake.

[0020] Fault indicator 14 is short-circuit and grounding fault indicator, which can monitor the change of line current and voltage in real time and mark fault section to accelerate subsequent fault troubleshooting efficiency.

[0021] Barometer 15 monitors the gas pressure state of insulation gas or sealed compartment in ring network cabinet to ensure stable insulation performance and prevent equipment failure caused by gas leakage.

[0022] Passive electromagnetic lock 16 forcibly locks cabinet door, grounding knife switch or operating handle when equipment is live to prevent mistaken entry into live compartment or misoperation.

[0023] Circuit breaker 18 is the core component of ring network cabinet, which is responsible for circuit connection and disconnection in normal state and quickly cuts off current in the event of short circuit, overload and other faults to protect power grid and equipment safety.

[0024] Switch gas chamber 2 includes second cabinet body 21, expansion connector 22 and circuit breaker switch 23, second cabinet body 21 is connected to the rear side of first cabinet body 11, expansion connector 22 is arranged at the upper end inside second cabinet body 21, and circuit breaker switch 23 is arranged at the lower end inside second cabinet body 21.

[0025] Expansion connector 22 provides modular expansion interface to support quick electrical connection of ring network cabinet and other devices such as secondary control module and sensor for easy function expansion and maintenance.

[0026] The circuit breaker switch 23 controls the opening and closing state of the circuit breaker 18 through a mechanical or electric operating mechanism, and is the direct control component that performs the operation of the circuit breaker 18.

[0027] The cable compartment 3 includes a third cabinet 31, a second cabinet door 32, and a cable outlet sleeve 33. The third cabinet 31 is connected to the lower end of the first cabinet 11 and the second cabinet 21. The second cabinet door 32 is rotatably connected to the front side of the third cabinet 31. The cable outlet sleeve 33 is installed inside the third cabinet 31, and the upper end of the cable outlet sleeve 33 is connected to the inside of the second cabinet 21.

[0028] Outgoing sleeve 33 serves as an insulating connection component between the cable terminal and the ring main unit, providing mechanical support and electrical insulation to ensure safe and reliable cable outgoing.

[0029] The isolation mechanism 17 interlocks the first cabinet 11 and the first cabinet door 12, and the isolation mechanism 17 is electrically connected to the display 13, thereby ensuring the safety of the cabinet and preventing staff from accidentally getting electric shocks.

[0030] The working principle is as follows:

[0031] First, the mechanism compartment 1, the switch compartment 2, and the cable compartment 3 are combined to form an isolated ring main unit structure, thereby ensuring the neatness of the ring main unit structure. At the same time, the display 13 installed on the upper front side of the first cabinet door 12 can cooperate with the fault indicator 14 set on the opposite side to realize the detection of liveness and the detection of line current and voltage, ensuring the safety of the ring main unit and reducing the occurrence of accidental electric shock to the staff. At the same time, when the display 13 detects a live condition, it will cooperate with the isolation mechanism 17 to interlock the cable compartment 3, further improving the safety of use. When the outgoing sleeve 33 set inside the third cabinet 31 becomes live, the passive electromagnetic lock 16 can lock the grounding operation hole to avoid accidental grounding problems.

[0032] The combination of circuit breaker 18 and circuit breaker switch 23 can realize the connection and disconnection of the circuit under normal conditions, and quickly cut off the current in the event of faults such as short circuit and overload, so as to protect the power grid and equipment safety.

[0033] Furthermore, the isolating circuit breaker cabinet of this application differs from conventional SF6 switch cabinets, with vacuum interruption on the switch bus side, which reduces problems caused by fault current interruption.

[0034] The above merely describes preferred examples of the present application and is not intended to limit the present application, and although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A 24 kV isolating circuit breaker ring main unit, characterized in that: Including mechanism compartment (1), switch air chamber (2) and cable compartment (3), the rear side of mechanism compartment (1) is provided with switch air chamber (2), the lower end of mechanism compartment (1) and switch air chamber (2) is connected with cable compartment (3); The mechanism compartment (1) includes a first cabinet (11), a first cabinet door (12), a display (13), a fault indicator (14), a barometer (15), a passive electromagnetic lock (16), an isolation mechanism (17) and a circuit breaker (18), the front side of the first cabinet (11) is rotatably connected with the first cabinet door (12), the upper end of the first cabinet (11) is respectively provided with the display (13) and the fault indicator (14), and the display (13) and the fault indicator (14) are oppositely arranged, the upper end of the front side of the first cabinet door (12) is provided with the barometer (15), the front side of the first cabinet door (12) is provided with the passive electromagnetic lock (16), the upper end of the inside of the first cabinet (11) is provided with the isolation mechanism (17), and the lower end of the inside of the first cabinet (11) is provided with the circuit breaker (18).

2. The 24 kV isolating circuit breaker ring main unit according to claim 1, characterized in that: The switch air chamber (2) includes a second cabinet (21), an expansion connector (22) and a circuit breaker switch (23), the second cabinet (21) is connected to the rear side of the first cabinet (11), the upper end of the inside of the second cabinet (21) is provided with the expansion connector (22), and the lower end of the inside of the second cabinet (21) is provided with the circuit breaker switch (23).

3. The 24 kV isolating circuit breaker ring main unit of claim 1, wherein: The cable compartment (3) includes a third cabinet (31), a second cabinet door (32) and an outlet sleeve (33), the third cabinet (31) is connected to the lower end of the first cabinet (11) and the second cabinet (21), the front side of the third cabinet (31) is rotatably connected with the second cabinet door (32), the inside of the third cabinet (31) is provided with the outlet sleeve (33), and the upper end of the outlet sleeve (33) is connected with the inside of the second cabinet (21).

4. The 24 kV isolating circuit breaker ring main unit of claim 1, wherein: The isolation mechanism (17) is connected with the first cabinet (11) and the first cabinet door (12), and the isolation mechanism (17) is electrically connected with the display (13).

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