CN207149733U - A kind of discharge device of a capacitor - Google Patents

Abstract

The utility model discloses a kind of discharge device of a capacitor, including insulating bar and electric discharge conductor, the electric discharge conductor is flexibly connected with insulating bar, and the electric discharge conductor includes conductor end and earth terminal, and the conductor end is connected with earth terminal by being grounded annealed copper wire；The conductor end is provided with left side electric discharge gib head and right side electric discharge gib head, and the left side electric discharge gib head is fixedly installed on conductor end, and the right side electric discharge gib head is movably arranged on conductor end.Can fast and easily complete capacitor bank just over the ground, negative electric discharge over the ground, between the two poles of the earth.It can be guarded with one man operation, a people and complete this work.Above-mentioned project can be completed to the upper unit of capacitor bank, and without using cat ladder.Through statistics, after discharge device of a capacitor, the discharge operation time shortens 50% more in the past.

Description

A capacitor discharge device

technical field

The utility model relates to the field of capacitors, in particular to a capacitor discharge device.

Background technique

Power capacitors are a type of capacitors used for reactive power compensation of the power grid. They are effective components for reducing reactive power loss of power grids and improving power utilization. Therefore, the normal operation of capacitors in substations plays a vital role in power systems.

Due to the importance and particularity of working in the capacitor bank, operation and maintenance personnel and maintenance personnel attach great importance to the arrangement of safety measures, among which fully discharging the capacitor bank is an important measure to ensure that maintenance personnel work safely at the capacitor. Therefore, fully discharging the capacitor efficiently and safely is the key to ensure the smooth implementation of the entire maintenance work involving the capacitor bank.

The existing capacitor bank is generally formed by a single small-capacity capacitor connected in series and parallel, and the structure is double-layered, and the existing capacitor is equipped with a fuse. It is necessary to check each capacitor of the capacitor bank one by one. For the discharge between the two poles, since there is no special discharge device suitable for this kind of work, at present, the operation and maintenance personnel still complete the discharge operation through the ordinary three-phase ground wire in the past. The operation and maintenance personnel first need to disassemble the wound ground wire when discharging. Since the ground wire is very heavy, the handling and disassembly process is laborious and time-consuming, and the removed ground wire is still in a bent state, which is already very narrow. The ground occupies a lot of space, causing inconvenience to the operation and maintenance personnel when transferring the discharge. And the insulating rod of the 10 kV three-phase grounding wire is short. For the discharge of the capacitor bank, there are 12 or 18 capacitors in each capacitor bank to be discharged; Ladders are required. All of the above make it inconvenient for operation and maintenance personnel to operate when discharging the capacitor bank, time-consuming and labor-intensive, and work efficiency is extremely low.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art. The purpose is to provide a capacitor discharge device, which solves the problems of inconvenient operation, low efficiency and potential safety hazards for discharging the capacitor.

The utility model is realized through the following technical solutions:

A capacitor discharge device, comprising an insulating rod and a discharge conductor, the discharge conductor is movably connected to the insulating rod, the discharge conductor includes a conductor end and a grounding end, and the conductor end and the grounding end are connected by an annealed grounding copper wire; the The conductor end is provided with a left discharge hook and a right discharge hook, the left discharge hook is fixedly arranged on the conductor end, and the right discharge hook is movably arranged on the conductor end.

It can quickly and conveniently complete the discharge of the positive to ground, negative to ground, and between two poles of the capacitor bank. It can be operated by one person and supervised by one person to complete the work. The above items can be done on the upper unit of the capacitor bank without using a ladder. According to statistics, after using the capacitor discharge device, the discharge operation time is shortened by 50% compared with the past.

Further, a telescopic spring is provided between the left discharge hook head and the right discharge hook head.

Further, the conductor end includes a connecting conductor rod and a conductor rod, one end of the connecting conductor rod is connected to the end of the insulating rod, the other end of the connecting conductor rod is provided with a socket, and one end of the conductor rod is inserted into the The sockets connecting the conductor rods are fixed by bolts, and the other end of the conductor rods is provided with an anti-off cap.

Further, a ground connection sleeve is sheathed on the conductor rod, and the ground annealed copper wire is connected to the ground connection sleeve.

Further, the other end of the connecting conductor rod is provided with a connecting ear, and the upper end of the insulating rod is provided with a groove, and the connecting ear is inserted into the groove and fastened with bolts.

Further, the left discharge hook includes a left sleeve and a discharge hook, the left sleeve is sleeved on the conductor rod, and the discharge hook is arranged at the bottom of the left sleeve.

Further, the right discharge hook includes a right sleeve and a discharge hook, the right sleeve is sleeved on the conductor rod, and the discharge hook is arranged at the bottom of the right sleeve.

Further, the right sleeve is provided with an adjustment screw hole, and the adjustment screw hole is provided with an adjustment tightening screw.

Further, the insulating rod is a telescopic insulating rod.

Further, the grounding end is a wing bolt joint, and a clamping plate is arranged on the wing bolt joint, and the wing bolt joint and the clamping plate are clamped and connected to the ground pile by rotating the wing bolt joint.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1) It can quickly and conveniently complete the discharge of the positive to ground, negative to ground, and between the two poles of the capacitor bank.

2) It can be operated by one person and supervised by one person to complete the work.

3) The above items can be done for the upper unit of the capacitor bank without using a ladder. According to statistics, the use of capacitors to put

After the electric device is installed, the discharge operation time is shortened by 50% compared with the past.

It can make the on-duty personnel, whether male or female, easily and efficiently complete the discharge operation of high, low and distant capacitors.

Description of drawings

The drawings described here are used to provide a further understanding of the embodiments of the utility model, constitute a part of the application, and do not constitute a limitation to the embodiments of the utility model. In the attached picture:

Fig. 1 is the structure diagram of capacitor;

Fig. 2 is the structural representation of a kind of capacitor discharge device of the present utility model;

Fig. 3 is the structural representation of the utility model conductor end;

Fig. 4 is a schematic diagram of the connection structure of the utility model connecting the conductor rod and the insulating rod;

Fig. 5 is a structural schematic diagram of the utility ground terminal;

Marks and corresponding parts names in the attached drawings:

1-insulation rod, 2-discharge conductor, 3-conductor end, 4-ground terminal, 5-ground soft copper wire, 6-left discharge hook, 7-right discharge hook, 8-telescopic spring, 9- Connect conductor rod, 10-conductor rod, 11-anti-off cap, 12-ground connection sleeve, 13-connection ear, 14-groove, 15-left kit, 16-discharge hook, 17-right kit, 18-adjust the tightness Screw, 19-wing bolt joint, 20-clamp plate.

Detailed ways

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the examples and accompanying drawings. The schematic implementation of the utility model and its description are only used to explain the utility model Novelty, not as a limitation to the utility model.

Example 1

As shown in Figure 2-5, the utility model is a capacitor discharge device, which includes an insulating rod 1 and a discharge conductor 2. The insulating rod 1 selects the length of the insulating rod according to the height of the upper capacitor. When using it, hold the part below the guard ring for easy storage Management, the part of the insulating rod is a telescopic design; the discharge conductor 2 is flexibly connected to the insulating rod 1, and the discharge conductor 2 and the insulating rod 1 can be rotated 180 degrees to discharge capacitors at different angles. The discharge conductor 2 includes a conductor end 3 and a grounding end 4, the conductor end 3 and the grounding end 4 are connected by a grounding annealed copper wire ⁵ ; the cross section of the grounding annealed copper wire is not less than 25mm according to safety regulations; There are a left discharge hook 6 and a right discharge hook 7, the left discharge hook 6 is fixedly arranged on the conductor end 3, and the right discharge hook 7 is movably arranged on the conductor end 3. Capacitors of various specifications can be discharged, and a telescopic spring 8 is arranged between the left discharge hook 6 and the right discharge hook 7 .

Steps for power outage maintenance of capacitor bank:

1) Transfer the capacitor bank to cold standby;

2) Close the ground switch of the capacitor bank body, or install the corresponding ground wire;

3) Discharge a single capacitor bank one by one from the positive pole to the ground, from the negative pole to the ground, and between the two poles.

The utility model relates to a capacitor discharge device, the method of using the device:

First, install the ground terminal first, and fix it on the ground pile through the ground terminal.

Second, use the metal part of the discharge end of the device to fully contact the positive and negative terminals of the capacitor one by one to complete the full discharge of positive to ground and negative to ground

Third, for the discharge between the two poles of a single capacitor, use the left discharge hook 6 to hook one of the poles. Under the action of the telescopic spring 8, the right discharge hook 7 fully contacts the other pole to complete the discharge between the two poles. discharge.

Note: Insulating gloves must be worn when discharging, and the hands cannot exceed the insulating part of the grip, and special personnel should be supervised.

After the discharge is completed according to the above steps, the safety tools can be stored and organized.

If the traditional method is adopted, such as 10kV three-phase grounding wire, there will be redundant parts on the device, which are easy to be entangled during operation, and are heavy and inconvenient to the operation. For the upper capacitor, it is necessary to use a ladder to work. The operation time is shortened from the original 20 minutes to less than 10 minutes. The operator uses the invented discharge device to discharge the capacitor bank, and can easily complete the discharge operation of the capacitor bank arranged at high places, low places, different angles, and different types, which saves time and effort compared with the past use of grounding wires for discharge.

Example 2

As shown in Figure 2-5, the utility model is a capacitor discharge device, on the basis of embodiment 1, the conductor end 3 includes a connecting conductor rod 9 and a conductor rod 10, and one end of the connecting conductor rod 9 is connected to the insulating rod 1 terminal connection, the other end of the connecting conductor rod 9 is provided with a socket, one end of the conductor rod 10 is inserted into the socket of the connecting conductor rod 9 and fixed by bolts, and the other end of the conductor rod 10 is provided with an anti- hat off11. The anti-off cap 11 can prevent the discharge hook head 7 on the right side from breaking away from the conductor rod 10 .

The ground connection sleeve 12 is sheathed on the conductor rod 10 , and the ground soft copper wire 5 is connected to the ground connection sleeve 12 .

The other end of the connecting conductor rod 9 is provided with a connecting ear 13 , and the upper end of the insulating rod 1 is provided with a groove 14 , and the connecting ear 13 is inserted in the groove 14 and connected by bolts. The connecting ear 13 has a through hole, and both sides of the groove 14 also pass through. Insert the connecting ear 13 in the groove 14 and then use bolts to connect. When it is necessary to adjust the angle between the conductor end 3 and the insulating rod 1, loosen the bolts , adjust to a suitable angle and then tighten the bolt, and the connecting ear 13 can be clamped by the slight tightening of the groove 14.

In this embodiment, it is only one embodiment to insert the connection ear 13 into the groove 14 and fasten the connection with bolts, and any existing connection methods that are convenient for rotation can be used, such as connecting the conductor rod 9 and the insulating rod 1 by rotating The gears are connected and can also be rotated 180 degrees.

The left discharge hook 6 includes a left sleeve 15 and a discharge hook 16 , the left sleeve 15 is sleeved on the conductor rod 10 , and the discharge hook 16 is arranged at the bottom of the left sleeve 15 .

The right discharge hook 7 includes a right sleeve 17 and a discharge hook 16, the right sleeve 17 is sleeved on the conductor rod 10, and the discharge hook 16 is arranged at the bottom of the right sleeve 17.

The right sleeve 17 is provided with an adjusting screw hole, and the adjusting screw hole is provided with an adjusting elastic screw 18 . By adjusting the elastic screw 18, the activity limit of the right side discharge hook 7 on the conductor bar 10 can be adjusted. When only the capacitor is discharged, the right side discharge hook 7 does not need to move on the conductor bar 10. The discharge hook head 7 on the right side is locked on the conductor bar 10 by the elastic screw 18 .

Example 3

As shown in Figure 5, a capacitor discharge device of the present invention, on the basis of Embodiment 1, the grounding terminal 4 is a wing bolt joint 19, and a clamping plate 20 is provided on the wing bolt joint 19, which can be rotated The wing bolt joint 19 connects the wing bolt joint 19 to the clamping plate 20 clamped on the ground stake. The ground terminal 4 in this embodiment is only an example, and there are many kinds of clamping connection and fixing methods that can be used in practical applications.

The utility model discloses a capacitor discharge device, which can quickly and conveniently complete the discharge of positive to ground, negative to ground, and between two poles of a capacitor group. It can be operated by one person and supervised by one person to complete the work. The above items can be done on the upper unit of the capacitor bank without using a ladder. According to statistics, after using the capacitor discharge device, the discharge operation time is shortened by 50% compared with the past.

It can make the on-duty personnel, whether male or female, easily and efficiently complete the discharge operation of high, low and distant capacitors.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present utility model in detail. Within the protection scope of the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims (10)

1. a kind of discharge device of a capacitor, including insulating bar (1) and electric discharge conductor (2), it is characterised in that：The electric discharge conductor (2) it is flexibly connected with insulating bar (1), the electric discharge conductor (2) includes conductor end (3) and earth terminal (4), the conductor end (3) Connected with earth terminal (4) by being grounded annealed copper wire (5)；The conductor end (3) is provided with left side electric discharge gib head (6) and right side electric discharge Gib head (7), the left side electric discharge gib head (6) are fixedly installed on conductor end (3), and right side electric discharge gib head (7) activity is set On conductor end (3).

A kind of 2. discharge device of a capacitor according to claim 1, it is characterised in that：Left side electric discharge gib head (6) and Adjustable spring (8) is provided between right side electric discharge gib head (7).

A kind of 3. discharge device of a capacitor according to claim 1, it is characterised in that：The conductor end (3) includes connection Conductor rods (9) and conductor rods (10), the connection termination of conductor rods (9) one are connected with insulating bar (1) termination, the connection conductor Bar (9) another termination is provided with jack, and the termination of conductor rods (10) one is inserted in the jack of connection conductor rods (9) to be consolidated by bolt Fixed, another termination of the conductor rods (10) is provided with anti-raise one's hat (11).

A kind of 4. discharge device of a capacitor according to claim 3, it is characterised in that：It is arranged with the conductor rods (10) Grounding connection set (12), the ground connection annealed copper wire (5) are connected on grounding connection set (12).

A kind of 5. discharge device of a capacitor according to claim 3, it is characterised in that：The connection conductor rods (9) are another End is provided with engaging lug (13), and insulating bar (1) upper end is provided with groove (14), and it is logical that the engaging lug (13) is plugged in groove (14) Bolt is crossed to be fastenedly connected.

A kind of 6. discharge device of a capacitor according to claim 3, it is characterised in that：Left side electric discharge gib head (6) bag Left external member (15) and electric discharge gib head (16) are included, the left external member (15) is enclosed on conductor rods (10), and the electric discharge gib head (16) sets In left external member (15) bottom.

A kind of 7. discharge device of a capacitor according to claim 3, it is characterised in that：Right side electric discharge gib head (7) bag Right external member (17) and electric discharge gib head (16) are included, the right external member (17) is enclosed on conductor rods (10), and the electric discharge gib head (16) sets In right external member (17) bottom.

A kind of 8. discharge device of a capacitor according to claim 7, it is characterised in that：The right external member (17), which is provided with, adjusts Screw is saved, the adjusting screw hole is provided with adjusting elasticity screw (18).

A kind of 9. discharge device of a capacitor according to claim 1, it is characterised in that：The insulating bar (1) is flexible exhausted Edge bar.

10. according to a kind of discharge device of a capacitor described in claim any one of 1-9, it is characterised in that：The earth terminal (4) For a wing bolt joint (19), the wing bolt joint (19) is provided with a clamping plate block (20), by rotating wing spiral shell Cotter joint (19) makes wing bolt joint (19) be clipped on ground stud with clamping plate block (20) to be connected.