CN203574123U - Transformer bushing junction device - Google Patents

Abstract

The utility model provides a transformer bushing wiring device, which comprises a connecting rod and a connecting clamp arranged at the end of the connecting rod. The connecting rod and the connecting clamp are insulated and connected. The lead wire is connected to the wire, and a control wire connected with the control end of the wiring clamp to control its opening and closing is also arranged on the wiring rod. The wiring pliers are sent to the height required for the wiring test through the wiring rod, and the bushing is clamped by the wiring pliers, and the test electricity is drawn out by the electric lead wire set on the wiring rod, and the insulation connection between the wiring rod and the wiring pliers is ensured. The wiring of the terminal pole is safe. The control line for controlling the opening and closing of the terminal clamp is set on the terminal pole, and the operator can control the terminal clamp through the control line, so that the test connection can be realized without climbing up during the test. Clamps and terminal rods reduce the difficulty of wiring.

Description

Transformer bushing wiring device

technical field

The utility model relates to the technical field of transformer transfer test, in particular to a transformer bushing connection device.

Background technique

At present, there are many test items for the main transformer of the substation. For example, a 220kV main transformer handover test requires multiple handover tests. When carrying out the transformer test on site, when it is necessary to connect the test lead to the bushing terminal, the tester climbs the bushing for wiring, and each test needs to climb the high-voltage bushing for wiring.

Some bushings are designed to be placed in a biased position on the transformer, and the height is relatively high (the actual height is about 2.5 meters). , often consume a lot of working time. Especially after the rainy and snowy weather, the casing is often slippery, which increases the difficulty of climbing the wiring, thus consuming a lot of precious power outage time. When we climb to the top of the porcelain sleeve, plus the height of the transformer body, the vertical height of the tester will reach 5 meters upward. This often brings great potential safety hazards to our test personnel.

Therefore, how to reduce the difficulty of bushing wiring in transformer test work is an urgent problem to be solved by those skilled in the art.

Utility model content

In view of this, the utility model provides a transformer bushing wiring device to reduce the difficulty of bushing wiring in transformer test work.

In order to achieve the above object, the utility model provides the following technical solutions:

A transformer bushing wiring device, comprising a connecting rod and a connecting clamp arranged at the end of the connecting rod, the connecting rod and the connecting clamp are insulated and connected, and the connecting rod is provided with a The connecting lead wire on the wiring pliers, the wiring rod is also provided with a control line connected with the control end of the wiring pliers to control its opening and closing.

Preferably, in the above-mentioned transformer bushing wiring device, the wiring pliers include a copper jaw and an insulating jaw seat, and the control wire is connected to the jaw seat.

Preferably, in the above-mentioned transformer bushing wiring device, a stepping motor connected to the control line to control the opening and closing of the wiring clamp is provided on the wiring rod.

Preferably, in the above transformer bushing wiring device, the wiring rod is a multi-section telescopic rod.

Preferably, in the above-mentioned transformer bushing wiring device, an insulating bent rod protruding radially from the wiring rod is arranged between the wiring rod and the wiring pliers.

Preferably, in the above-mentioned transformer bushing wiring device, the wiring rod includes a telescopic inner rod and a telescopic outer rod with a multi-section sleeve structure, and a sliding device is provided between the telescopic inner rod and the telescopic outer rod. The bottom of the telescoping inner pole and the wire rope at the top of the telescoping outer pole.

Preferably, in the above-mentioned transformer bushing wiring device, the bottom of the wiring rod is provided with a reel for rewinding the wire rope and a driving motor power-connected to the reel of the reel.

Preferably, in the above-mentioned transformer bushing wiring device, a planetary transmission wheel is arranged between the driving motor and the reel.

Preferably, in the above-mentioned transformer bushing wiring device, a transmission wheel for guiding the steel wire rope is provided between the telescopic inner rod and the telescopic outer rod.

Preferably, in the above transformer bushing wiring device, the bottom of the wiring rod is provided with a chassis for supporting it.

The transformer bushing wiring device provided by the utility model includes a connecting rod and a connecting clamp arranged at the end of the connecting rod. The connecting rod and the connecting clamp are insulated and connected. The lead wire is also provided with a control wire connected with the control end of the wiring pliers to control its opening and closing on the wiring rod. The wiring pliers are sent to the height required for the wiring test through the wiring rod, and the bushing is clamped by the wiring pliers, and the test electricity is drawn out by the electric lead wire set on the wiring rod, and the insulation connection between the wiring rod and the wiring pliers is ensured. The wiring of the wiring rod is safe. The control line for controlling the opening and closing of the wiring pliers is set on the wiring rod, and the operator can control the wiring pliers through the control line, so that the test connection can be realized without climbing up during the test. Clamps and terminal rods reduce the difficulty of wiring.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural representation of the transformer bushing wiring device provided by the utility model;

Fig. 2 is the structural schematic diagram of wiring clamp in Fig. 1;

Fig. 3 is a schematic diagram of the telescopic structure of the wiring rod in the transformer bushing wiring device provided by the present invention.

Detailed ways

The utility model discloses a bushing wiring device for a transformer, which reduces the difficulty of wiring the bushings in the transformer test work.

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model.

As shown in Fig. 1 and Fig. 2, Fig. 1 is a schematic structural diagram of a transformer bushing wiring device provided by the present invention; Fig. 2 is a schematic structural diagram of the wiring clamp in Fig. 1 .

The utility model provides a transformer bushing wiring device, which comprises a connecting rod 1 and a connecting clamp 2 arranged at the end of the connecting rod. The connecting rod 1 and the connecting clamp 2 are insulated and connected. For the lead wires connected to the wiring clamp 2, the wiring rod 1 is also provided with a control wire connected to the control end of the wiring clamp 2 to control its opening and closing. Send the wiring clamp 2 to the height required for the wiring test through the terminal pole 1, clamp the conductor on the bushing by the wiring clamp 2, and lead out the test electricity from the connecting lead wire set on the terminal pole 1, and the terminal pole 1 and The insulated connection between the wiring clamps 2 ensures the safety of the wiring of the wiring rods. The control line for controlling the opening and closing of the wiring clamps 2 is set on the wiring rod 1, and the operator can realize the control of the wiring clamps 2 through the control line, and there is no need for further testing. The test connection can be realized by climbing up, and the difficulty of wiring is reduced by the wiring clamp 2 and the wiring rod 1 .

In a specific embodiment of the present invention, the wiring clamp 2 includes a jaw 21 made of copper and a jaw seat 22 made of insulating material, and the control wire is connected to the jaw seat 22 . The opening and closing of the jaws 21 can be controlled by operating the jaw base 22. The control line is connected to the jaw base 22, and the insulation structure prevents the current received by the clamp 2 from being introduced into the operating end of the terminal rod 1. Specifically, the control line is a control line made of nylon rope, and the nylon rope is made of insulating material and has sufficient toughness to meet the long-term opening and closing control requirements of the clamp.

In a specific embodiment of the utility model, the terminal rod 1 is provided with a stepping motor connected with a control line to control the opening and closing of the clamp. The stepper motor is connected with the control line, and the control line that controls the opening and closing of the wiring pliers is driven by controlling the forward rotation and flipping of the stepping motor, such as controlling the forward rotation of the stepping motor, the control line drives the wiring pliers to close and lock, and clamps the sleeve The conductor on the wire, reverse the wire clamp to open, and the wire clamp can be removed. At the same time, the clamping degree of the wiring pliers can be controlled by a stepping motor, so as to avoid damage to the bushing conductor or the wiring pliers caused by the continuous clamping of the wiring pliers.

In a specific embodiment of the utility model, the wiring rod 1 is a multi-section telescopic rod. The transformer bushing has a certain height, and the longer wiring rod is not suitable for carrying and is inconvenient to operate. The wiring rod 1 is set as a telescopic rod, and by reasonably setting the length of each telescopic rod, the overall structure of the wiring rod can be controlled in a small range, which is easy to carry for testing.

In a specific embodiment of the present invention, an insulating bent rod 3 protruding radially from the terminal rod 1 is arranged between the terminal rod 1 and the clamp 2 . Because the conductor on the bushing has a certain height, the direct operation terminal rod is connected with the conductor on the bushing because the distance is not suitable for operation, and it is not suitable for adjusting the clamping angle of the wiring clamp at any time. By arranging the insulating bent rod 3 at the end of the terminal rod 1, on the one hand, the leakage of the terminal rod can be avoided. On the other hand, the insulating bent rod 3 protruding radially along the connecting rod 1 makes the connecting rod in an L-shaped structure as a whole. On the conductor, it is easy to send the clamps into the clamping position of the conductor by operating the sliding of the insulating bent rod. The insulating bending rod 2 and the wiring rod are connected by hinges, and the hinged seat 4 is provided. When in use, the insulating bending rod 2 is propped up and the hinged seat 4 is locked. After the test is completed, the hinged seat 4 is released, and the insulating bending rod 3 It is retracted close to the terminal pole 1, so as to facilitate the carrying of the terminal pole, and the insulating bent pole 3 of insulating material provides leakage protection.

As shown in FIG. 3 , FIG. 3 is a schematic diagram of the telescopic structure of the wiring rod in the transformer bushing wiring device provided by the present invention.

In a specific embodiment of the present utility model, the wiring rod 1 includes a telescopic inner rod and a telescopic outer rod with a multi-section suit structure. The steel wire rope 13 of the top. The wiring rod is a multi-section structure, and a set of telescopic inner rods and telescopic outer rods are formed between the two segments of the suit. Taking the outer group of telescopic inner rods 12 and telescopic outer rods 11 as an example, the top inner side of the telescopic outer rod 11 and the telescopic inner rod The outer bottom of the bar 12 is provided with a sliding steel wire rope 13, and the tensile end 14 of the steel rope 13 is stretched out from the side wall of the telescopic outer rod 11, and the steel wire rope 13 is pulled. The telescopic inner rod 12 is pushed out from the telescopic outer rod 11, and the steel wire rope 13 is loosened. The telescopic inner rod 12 can be received into the telescopic outer rod 11 by its own gravity or artificially provided thrust, and multiple sets of telescopic inner rods and telescopic outer rods are mutually assembled. , to form the telescopic rod structure of the wiring rod. Preferably, the wiring rod 1 is configured as two sets of telescopic inner rods and telescopic outer rods. Of course, it can be configured as a telescopic rod structure composed of multiple sets of telescopic inner rods and telescopic outer rods according to the actual working conditions of the high voltage bushing.

In this embodiment, a transmission wheel 15 for guiding the wire rope 13 is provided between the telescopic inner rod 12 and the telescopic outer rod 11 . The transmission wheel 15 that guides the transmission of the steel wire rope is set at the outer bottom end of the telescopic inner rod 12 and the inner top end of the telescopic outer rod 11. The transmission wheel 15 changes the transmission of the steel wire rope 13 from sliding transmission to rolling transmission, thereby accurately adjusting the wire rope. In the transmission wheel limited by the transmission position, the transmission direction is accurate, and the rolling friction is also more effective than the sliding friction to provide effective protection between the telescopic inner rod and the telescopic outer rod.

In a specific embodiment of the utility model, the bottom of the wiring rod 1 is provided with a reel for rewinding the wire rope and a drive motor powered connected to the reel of the reel. The driving motor drives the reel to rotate, and the electric device controls the expansion and contraction of the wiring rod, which further reduces the difficulty of manual operation.

Specifically, a planetary transmission wheel is arranged between the drive motor and the reel. When the wire reel is working, it is pulled by the wire rope, and the planetary transmission wheel is provided to provide a relatively balanced driving force for the wire reel, so as to avoid continuous stress in a single direction on the wire reel and reduce the service life.

In a specific embodiment of the utility model, the bottom of the connecting rod 1 is provided with a chassis 5 supporting it, and the connecting rod is stably supported by the chassis 5, and the test operation can be safely carried out through the connecting lead wires provided on it during the test. .

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. a bushing shell for transformer termination, it is characterized in that, comprise junction pole and the jointing clamp that is arranged at the end of described junction pole, between described junction pole and described jointing clamp, insulate and be connected, on described junction pole, be provided with the electrical lead that connects being electrically connected on described jointing clamp, on described junction pole, be also provided with the control end of described jointing clamp and be connected the control line of controlling its folding.

2. bushing shell for transformer termination according to claim 1, is characterized in that, described jointing clamp comprises the jaw of red copper material and the jaw seat of insulation material, and described control line is connected with described jaw seat.

3. bushing shell for transformer termination according to claim 2, is characterized in that, on described junction pole, being provided with is connected with described control line controls the stepping motor of described jointing clamp folding.

4. bushing shell for transformer termination according to claim 1, is characterized in that, the expansion link that described junction pole is multi-section structure.

5. bushing shell for transformer termination according to claim 4, is characterized in that, is provided with along the radially-protruding insulation knee of described junction pole between described junction pole and described jointing clamp.

6. bushing shell for transformer termination according to claim 4, it is characterized in that, described junction pole comprises bar and the outer bar that stretches in stretching of more piece sleeve structure, and between described flexible interior bar and described flexible outer bar, being provided with slides is arranged at the steel wire rope at the bottom of bar in described stretching and the top of the described outer bar that stretches.

7. bushing shell for transformer termination according to claim 6, is characterized in that, the bottom of described junction pole is provided with spool and the power of steel wire rope described in rolling and is connected in the drive motors on described spool spool.

8. bushing shell for transformer termination according to claim 7, is characterized in that, is provided with Gear Planet Transmission wheel between described drive motors and described spool.

9. bushing shell for transformer termination according to claim 6, is characterized in that, between described flexible interior bar and described flexible outer bar, is provided with the drive that described steel wire rope is led.

10. bushing shell for transformer termination according to claim 6, is characterized in that, the bottom of described junction pole is provided with the chassis supporting.

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