Capacitor quick-mounting type capacitor power-taking type pole-mounted circuit breaker

Abstract

The utility model relates to the technical field of pole-mounted circuit breakers, and discloses a capacitor fast-assembly type capacitor power-taking pole-mounted circuit breaker, which comprises a grounding piece, an insulating base, a capacitor, a first conducting rod and a second conducting rod, the grounding piece is arranged on a circuit breaker mechanism box, the insulating base is detachably connected to the circuit breaker mechanism box, and the capacitor is arranged on the insulating base. A first conducting rod and a second conducting rod are sleeved in the insulating base, the circuit breaker mechanism box is connected with a capacitor through the first conducting rod and the second conducting rod, and the capacitor is inserted into the insulating base. According to the utility model, when the pole-mounted circuit breaker has a fault and needs to be maintained, the circuit breaker body does not need to be disassembled, the capacitor can be quickly disassembled and assembled on an electric pole, the operation is convenient and quick, and the power failure time is shortened to a great extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pole-mounted circuit breaker, specifically to a capacitor fast mounting type capacitor power taking pole-mounted circuit breaker. BACKGROUND

[0002] The pole-mounted circuit breaker is mainly applied to the tie-in point, sectional point, branch or user demarcation point of 10kV overhead distribution line, such as the overhead line of rural power grid and the main line of urban distribution network, to play the role of protecting and controlling the line and improve the reliability and automation level of the distribution system.

[0003] There are relatively many types of pole-mounted circuit breakers, among which the capacitor power taking pole-mounted circuit breaker is widely used in recent years due to its light overall weight, convenient installation operation and no ferromagnetic resonance.

[0004] The capacitor power taking pole-mounted circuit breaker replaces the traditional electromagnetic induction type voltage transformer with a capacitor to convert high voltage into low voltage, and finally supplies power to the control and protection device matched with the pole-mounted circuit breaker, thereby ensuring the normal operation of the whole product.

[0005] The capacitor power taking pole-mounted circuit breaker of the conventional method usually adopts bolts to directly fix the capacitor body and the grounding end on the circuit breaker mechanism box, and the low voltage transmission line led out of the capacitor directly penetrates through the mechanism box shell and is connected to the terminal in the circuit breaker mechanism box. During the subsequent use process, when the capacitor needs to be repaired due to failure, the whole pole-mounted circuit breaker needs to be removed from the pole for repair, and at the same time, the standby pole-mounted circuit breaker needs to be installed on the pole to restore power supply, which makes the repair time-consuming and laborious, the repair cost is high, and the power supply recovery period is long.

[0006] The reasons for the above defects are as follows: the capacitor power taking pole-mounted circuit breaker of the conventional method usually adopts bolts to directly fix the capacitor body and the grounding end on the circuit breaker mechanism box, and the low voltage transmission line led out of the capacitor directly penetrates through the mechanism box shell and is connected to the terminal in the circuit breaker mechanism box. When replacing the failed capacitor, the circuit breaker mechanism box shell needs to be opened to complete the capacitor replacement, which cannot be completed on the pole, and the skill requirement of the maintenance personnel is high, and often only the factory can handle it.

[0007] In summary, the main reason for the time-consuming and laborious repair, high repair cost and long power supply recovery period of the capacitor power taking pole-mounted circuit breaker of the conventional method under the condition of capacitor failure is that the capacitor body and the grounding end are directly fixed on the circuit breaker mechanism box by bolts, and the low voltage transmission line led out of the capacitor directly penetrates through the mechanism box shell and is connected to the terminal in the circuit breaker mechanism box.

[0008] In order to solve the above problems, we propose a capacitor fast mounting type capacitor power taking pole-mounted circuit breaker. CONTENT OF THE UTILITY MODEL

[0009] The utility model discloses a capacitor fast -assembling type capacitor power -taking type pole circuit breaker to solve the problem in the foregoing background art.

[0010] To realize above -mentioned purpose, the utility model provides the following technical scheme: capacitor fast -assembling type capacitor power -taking type pole circuit breaker, including ground sheet, insulating base, capacitor, first conducting rod and second conducting rod,

[0011] The ground sheet is arranged on the circuit breaker mechanism box, the insulating base is detachably connected to the circuit breaker mechanism box, the first conducting rod and the second conducting rod are sleeved in the insulating base, the circuit breaker mechanism box is connected with the capacitor through the first conducting rod and the second conducting rod, and the capacitor is inserted into the insulating base.

[0012] Preferably, the bottom surface of the insulating base provided with the first conducting rod is connected to the circuit breaker mechanism box through a first insulating nut, and the bottom surface of the insulating base provided with the second conducting rod is connected to the circuit breaker mechanism box through a second insulating nut.

[0013] Preferably, the capacitor is provided with a first conducting slot and a second conducting slot, the first conducting slot is slidably connected to the top end of the first conducting rod, and the second conducting slot is slidably connected to the top end of the second conducting rod.

[0014] The bottom end of the first conducting rod is connected to the internal terminal of the circuit breaker mechanism box through a first lead wire, and the second conducting rod is connected to the internal terminal of the circuit breaker mechanism box through a second lead wire.

[0015] Preferably, the capacitor is provided with a grounding wire and a low-voltage lead wire, a grounding electrode is cast in the capacitor, the grounding electrode is connected to the internal grounding wire of the capacitor, the first conducting slot and the second conducting slot are connected to the low-voltage lead wire in the capacitor, a spring and a grounding rod are sleeved on the grounding electrode, one end of the grounding electrode extends into the grounding rod, one end surface of the grounding electrode extending into the grounding rod is provided with a baffle, the baffle is connected to the grounding electrode through a fastening screw, and a spring washer is arranged between the baffle and the fastening screw.

[0016] Preferably, the insulating base is provided with a fixing rod, and a slot opening for inserting the fixing rod is formed in the bottom surface of the capacitor.

[0017] Compared with the prior art, the pole circuit breaker can be quickly disassembled and assembled on the electric pole without disassembling the circuit breaker body when the capacitor needs to be repaired, which is convenient, fast and greatly shortens the power-off time. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic view of the utility model;

[0019] Figure 2 It is the structure schematic view when the utility model removes the capacitor and the insulating base;

[0020] Figure 3 It is the structure main view schematic view of the utility model;

[0021] Figure 4 It is Figure 3 The enlarged sectional view of A in the middle;

[0022] Figure 5 It is the explosion view of the insulating base part in the utility model;

[0023] Figure 6 It is the structure schematic view of the capacitor in the utility model;

[0024] Figure 7 It is the structure explosion view of the capacitor in the utility model.

[0025] In the drawing: 1-circuit breaker mechanism box, 2-grounding sheet, 3-insulating base, 4-capacitor, 5-second insulating nut, 6-second wire, 7-fastening screw, 8-first wire, 9-first insulating nut, 10-first conducting rod, 11-first conducting sheet, 12-grounding rod, 13-spring, 14-grounding pole, 15-baffle, 16-second conducting sheet, 17-second conducting rod, 18-spring washer, 19-fixing rod, 20-slot. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1-7 The utility model provides a technical scheme: capacitor fast -assembled capacitor power -on type pole-mounted circuit breaker, including grounding sheet 2, insulating base 3, capacitor 4, first conducting rod 10 and second conducting rod 17.

[0028] The ground sheet 2 is welded on the circuit breaker mechanism box 1, the insulating base 3 is fixed on the circuit breaker mechanism box 1 through the second insulating nut 5 and the first insulating nut 9, and the first conductive rod 10 and the second conductive rod 17 are pre-cast in the insulating base 3 and penetrate the insulating base 3 and are insulated from the shell of the circuit breaker mechanism box 1.

[0029] The first conductive slot 11 and the second conductive slot 16 are cast in the capacitor 4, the first conductive slot 11 is slidably connected to the top end of the first conductive rod 10, and the second conductive slot 16 is slidably connected to the top end of the second conductive rod 17.

[0030] The bottom end of the first conductive rod 10 is connected to the internal terminal of the circuit breaker mechanism box 1 through the first lead 8, and the second conductive rod 17 is connected to the internal terminal of the circuit breaker mechanism box 1 through the second lead 6.

[0031] The capacitor 4 is provided with a ground wire and a low-voltage lead, the capacitor 4 is cast with a ground electrode 14, the ground electrode 14 is connected with the internal ground wire of the capacitor 4, and the first conductive slot 11 and the second conductive slot 16 are connected with the low-voltage lead in the capacitor 4.

[0032] The spring 13 and the ground rod 12 are sleeved on the ground electrode 14, the ground electrode 14 is provided with a threaded hole, and one end of the ground electrode 14 extends into the ground rod 12; the end face of the ground electrode 14 extending into the ground rod 12 is provided with a baffle 15, the baffle 15 is connected to the threaded hole of the ground electrode 14 through a fastening screw 7, a spring washer 18 is arranged between the baffle 15 and the fastening screw 7, and the spring 13 and the ground rod 12 are limited on the ground electrode 14. The insulating base 3 is provided with a fixing rod 19, and the bottom surface of the capacitor 4 is provided with a slot 20 for inserting the fixing rod 19.

[0033] Working principle:

[0034] When installing the capacitor, the capacitor 4 is placed on the insulating base 3 with the two slots 20 on the bottom of the capacitor 4 corresponding to the two fixing rods 19 on the insulating base 3, and the capacitor 4 is pressed downward on the insulating base 3 to touch the shell of the circuit breaker mechanism box 1.

[0035] At this time, the spring 13 is in the maximum compression state, the capacitor 4 is released after being rotated clockwise to the position, and under the action of the spring force of the spring 13, the capacitor 4 is separated from the shell of the circuit breaker mechanism box 1 by a certain distance, and the fixing rod 19 is clamped in the slot 20 to stop the displacement of the capacitor 4.

[0036] Because the spring 13 is still in compression, the capacitor 4 is fixed on the insulating base 3 under the action of the spring force, and meanwhile, the grounding rod 12 is reliably connected with the grounding sheet 2.

[0037] In addition, the first conductive rod 10 and the second conductive rod 17 are reliably connected with the first conductive sheet 11 and the second conductive sheet 16 in sliding mode, thus realizing the connection between the internal grounding wire of the capacitor 4 and the shell of the circuit breaker mechanism box 1 and the connection between the internal low-voltage wire of the capacitor 4 and the internal terminal of the circuit breaker mechanism box 1, i.e., completing the capacitor installation.

[0038] When disassembling, only the reverse operation according to the above operation direction is needed, and then the capacitor 4 can be conveniently disassembled.

[0039] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0040] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments which can be understood by those skilled in the art.

Claims

1. A capacitor quick-mount capacitor power supply type pole-mounted circuit breaker, characterized by, It comprises a grounding sheet (2), an insulating base (3), a capacitor (4), a first conductive rod (10) and a second conductive rod (17). The grounding sheet (2) is arranged on the circuit breaker mechanism box (1); the insulating base (3) is detachably connected to the circuit breaker mechanism box (1); the first conductive rod (10) and the second conductive rod (17) are sleeved in the insulating base (3); the circuit breaker mechanism box (1) is connected with the capacitor (4) through the first conductive rod (10) and the second conductive rod (17); and the capacitor (4) is inserted into the insulating base (3).

2. The capacitor quickpost capacitor power pickup type pole-mounted circuit breaker according to claim 1, characterized by, The bottom surface of the insulating base (3) provided with the first conductive rod (10) is connected to the circuit breaker mechanism box (1) through a first insulating nut (9); and the bottom surface of the insulating base (3) provided with the second conductive rod (17) is connected to the circuit breaker mechanism box (1) through a second insulating nut (5).

3. The capacitor quickpost capacitor power taken type pole circuit breaker according to claim 1, characterized in that, The capacitor (4) is provided with a first conductive slot (11) and a second conductive slot (16); the first conductive slot (11) is slidably connected to the top end of the first conductive rod (10); and the second conductive slot (16) is slidably connected to the top end of the second conductive rod (17). The bottom end of the first conductive rod (10) is connected to the internal terminal of the circuit breaker mechanism box (1) through a first lead wire (8); and the second conductive rod (17) is connected to the internal terminal of the circuit breaker mechanism box (1) through a second lead wire (6).

4. The capacitor quickpost capacitor power taken type pole circuit breaker according to claim 3, characterized in that, The capacitor (4) is provided with a grounding wire and a low-voltage lead wire; the capacitor (4) is cast with a grounding electrode (14); the grounding electrode (14) is connected to the internal grounding wire of the capacitor (4); the first conductive slot (11) and the second conductive slot (16) are connected to the low-voltage lead wire in the capacitor (4); the grounding electrode (14) is sleeved with a spring (13) and a grounding rod (12); one end of the grounding electrode (14) extends into the grounding rod (12); the end surface of the grounding electrode (14) extending into the grounding rod (12) is provided with a baffle (15); the baffle (15) is connected to the grounding electrode (14) through a fastening screw (7); and a spring washer (18) is arranged between the baffle (15) and the fastening screw (7).

5. The capacitor quickpost capacitor power drawn pole-mounted circuit breaker according to claim 1, wherein, The insulating base (3) is provided with a fixing rod (19); and the bottom surface of the capacitor (4) is provided with a slot (20) for inserting the fixing rod (19).

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