CN212808345U

CN212808345U - Auxiliary wiring device for transformer test

Info

Publication number: CN212808345U
Application number: CN202021812531.8U
Authority: CN
Inventors: 秦雄鹏; 赵勇军; 张意
Original assignee: Yunnan Electric Power Technology Co ltd
Current assignee: Yunnan Electric Power Technology Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-03-26
Anticipated expiration: 2030-08-26

Abstract

The utility model discloses an experimental supplementary termination of transformer, including the insulator spindle, this insulator spindle top is installed and is contained conductive metal's horizontal telescopic link, arbitrary movable mounting of horizontal telescopic link has the transformer lantern ring of size adjustable, the horizontal telescopic link middle part is equipped with experimental terminal. The device is directly utilized to carry out wiring operation of the test wire after the test wire is connected to the test wiring terminal, the difficulty of wiring of experimenters and the difficulty of climbing repeatedly can be solved, the problem of data abnormity or test wire falling caused by poor wiring can be effectively avoided, the working efficiency of the experimenters can be effectively improved, and the danger coefficient of the experimenters is reduced to a great extent.

Description

Auxiliary wiring device for transformer test

Technical Field

The utility model belongs to power supply unit high-voltage testing detection area, concretely relates to experimental supplementary termination of transformer.

Background

When carrying out transformer dielectric loss measurement and direct current resistance test, according to the difference of transformer wiring mode, different test sleeve pipes need to be changed to one of them experimental wiring to effectual horizontal comparison between the data. In the process of changing the wire, the test angle and the test sleeve are required to be changed continuously, so that the complex procedures of repeated climbing and ascending of test personnel are caused. On one hand, the method increases larger workload, and on the other hand, the method severely limits the rapid judgment of the difference between data in the test process.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art and can't carry out the test wire fast and change, the testing personnel need scramble repeatedly, ascend a height and carry out the technological problem that the test wire was changed, provided a transformer test auxiliary connection device.

The utility model adopts the following technical scheme:

the utility model provides a transformer test assists termination which the key lies in: the testing device comprises an insulating rod, wherein a horizontal telescopic rod containing conductive metal is installed at the top of the insulating rod, a transformer lantern ring with adjustable size is movably installed at any end of the horizontal telescopic rod, and a testing binding post is arranged in the middle of the horizontal telescopic rod.

Preferably, the transformer lantern ring is a diamond lantern ring formed by combining four edge strips hinged to each other at the end part, spring pieces are arranged inwards at the end parts of the edge strips, the four spring pieces are arranged in a central symmetry mode, and any angle of the transformer lantern ring is connected with the end part of the horizontal telescopic rod.

Preferably, each edge strip of the transformer lantern ring is further provided with a saw-tooth-shaped static contact corresponding to the spring piece, and the saw-tooth-shaped static contact is located between the edge strip and the spring piece.

As the preferred scheme, two between the strake articulate through adjusting bolt, the transformer lantern ring with be equipped with the direction regulator between the horizontal telescopic link, but the direction regulator circumferential direction is rotatory.

Preferably, an angle adjuster is arranged between the horizontal telescopic rod and the insulating rod.

Preferably, the middle part of the insulating rod is provided with a wire feeding and fixing device which slides along the length direction of the insulating rod.

Preferably, the outer wall of the insulating rod is provided with scale marks.

Preferably, a threaded telescopic rod is installed at the top of the insulating rod along the length direction of the insulating rod, and the horizontal telescopic rod is installed on the threaded telescopic rod.

Has the advantages that: the utility model discloses an experimental supplementary termination of transformer can directly utilize this device to carry out test wire wiring operation after receiving test terminal with the test wire, can solve the experimenter difficulty of working a telephone switchboard, need climb repeatedly the difficulty of ascending a height to can effectively avoid because the bad data anomaly or the test wire that arouse of working a telephone switchboard weigh down the problem, can improve experimenter work efficiency effectively, and reduced experimenter's danger coefficient in the very big degree.

Drawings

FIG. 1 is a simplified diagram of the structure of the present invention;

fig. 2 is a schematic diagram of the structure of the transformer collar 3;

fig. 3 is an application scene demonstration diagram of the present invention.

Detailed Description

The invention will be described in further detail with reference to the accompanying drawings:

example (b): as shown in the attached drawings 1 and 2, the auxiliary wiring device for the transformer test comprises an insulating rod 1, a horizontal telescopic rod 2 containing conductive metal is installed at the top of the insulating rod 1, a transformer lantern ring 3 with an adjustable size is movably installed at any end of the horizontal telescopic rod 2, and a test wiring terminal 4 is arranged in the middle of the horizontal telescopic rod 2.

The transformer lantern ring 3 is a diamond lantern ring formed by combining four edge strips hinged with each other in pairs at the end part, a spring piece 5 is arranged inwards at the end part of each edge strip, the four spring pieces 5 are arranged in a central symmetry manner, and any one corner of the transformer lantern ring 3 is connected with the end part of the horizontal telescopic rod 2; each edge strip of the transformer lantern ring 3 is also provided with a saw-tooth-shaped static contact 6 corresponding to the spring piece 5, and the saw-tooth-shaped static contact 6 is positioned between the edge strip and the spring piece 5 so as to further ensure that the transformer lantern ring 3 is in good contact with the test equipment; the two edge strips are hinged through an adjusting bolt 7, an ejector pin is arranged on the adjusting bolt 7 and is loosened under stress, and the size of the transformer lantern ring 3 can be adjusted through the adjusting bolt 7; be equipped with direction regulator 8 between transformer lantern ring 3 and the horizontal telescopic rod 2, direction regulator 8 and the coaxial arrangement of transformer lantern ring 3 can ensure that transformer lantern ring 3 can circumferential direction.

In specific implementation, in order to be better suitable for various operating environments, an angle adjuster 9 is arranged between the horizontal telescopic rod 2 and the insulating rod 1 so as to adjust the direction of the transformer lantern ring 3 in multiple directions; meanwhile, a threaded telescopic rod is arranged at the top of the insulating rod 1 along the length direction of the insulating rod, a horizontal telescopic rod 2 is arranged on the threaded telescopic rod, and scale marks are arranged on the outer wall of the insulating rod 1 so as to adjust the height of the transformer lantern ring 3 as required; and in order to better fix the test wire and prevent the test wire from falling, the middle part of the insulating rod 1 is provided with a wire feeding and fixing device 10 which slides along the length direction of the insulating rod 1.

As shown in fig. 3, the device specifically comprises the following steps when performing test line connection operation:

step 1, adjusting the size of a transformer lantern ring 3 of the device to be slightly larger than the transformer bushing to be tested by using an adjusting bolt 7 according to the transformer bushing to be tested;

step 2, adjusting the transformer lantern ring 3 and the transformer bushing to be measured to be fixed after being positioned on the same horizontal plane through the rotation direction regulator 8;

step 3, according to specific test requirements, adjusting the length of the horizontal telescopic rod 2 according to test voltage, fixing after ensuring that the test insulation distance meets the requirements, and then connecting a test wire to the test wiring terminal 4;

step 4, according to the angle of the bushing of the transformer to be tested, the angle between the horizontal telescopic rod 2 and the insulating rod 1 is adjusted through the direction adjuster 8 so as to meet the requirement of test wiring (in a common 220KV single-phase transformer, the bushing of a central line point is vertical to the ground, at the moment, the angle can be adjusted, while the bushing of the three-phase integrated transformer forms a certain angle with the ground, at the moment, the adjustment is needed so as to reduce the error influence caused by space stray capacitance);

step 5, fixing the body part of the test wire with the wire feeding and fixing device 10, and sliding the wire feeding and fixing device 10 to the highest position;

step 6, a tester lifts the insulating rod 1 to the position above the transformer bushing to be tested, and sleeves the transformer bushing by using the transformer bushing ring 3, so that the spring pressing sheet 5 firmly fixes the transformer bushing to be tested or the lead wire is linked with the copper plate to ensure that the transformer bushing to be tested is contacted with the sawtooth-shaped static contact 6, namely, the wiring operation is finished, and the test can be carried out;

and 7, after the test is finished, directly jacking up the thimble on the adjusting bolt 7 by using the standby insulating rod to loosen the transformer lantern ring 3, and then taking out the thimble to perform the test of the next transformer bushing to be tested.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. The utility model provides a transformer test auxiliary connection device which characterized in that: including insulator spindle (1), horizontal telescopic link (2) of interior electrically conductive metal of inclusion are installed at this insulator spindle (1) top, arbitrary movable mounting of horizontal telescopic link (2) has size adjustable transformer lantern ring (3), horizontal telescopic link (2) middle part is equipped with experimental terminal (4).

2. The auxiliary wiring device for the transformer test according to claim 1, wherein: the transformer lantern ring (3) is the rhombus form lantern ring of four two liang of articulated strake combinations of tip, every strake tip is inwards provided with spring leaf (5), four spring leaf (5) are central symmetrical arrangement, transformer lantern ring (3) arbitrary angle with horizontal telescopic link (2) end connection.

3. The auxiliary wiring device for the transformer test according to claim 2, wherein: each edge strip of the transformer lantern ring (3) is further provided with a sawtooth-shaped static contact (6) corresponding to the spring piece (5), and the sawtooth-shaped static contact (6) is located between the edge strip and the spring piece (5).

4. A transformer test auxiliary wiring device according to claim 2 or 3, characterized in that: two it is articulated through adjusting bolt (7) between the strake, the transformer lantern ring (3) with be equipped with direction regulator (8) between horizontal telescopic link (2), but direction regulator (8) circumferential direction.

5. The auxiliary wiring device for the transformer test according to claim 1, wherein: an angle regulator (9) is arranged between the horizontal telescopic rod (2) and the insulating rod (1).

6. The auxiliary wiring device for the transformer test according to claim 1, wherein: the middle part of the insulating rod (1) is provided with a wire feeding and fixing device (10) which slides along the length direction of the insulating rod (1).

7. The auxiliary wiring device for the transformer test according to claim 1, wherein: and scale marks are arranged on the outer wall of the insulating rod (1).

8. The auxiliary wiring device for the transformer test according to claim 1, wherein: the top of the insulating rod (1) is provided with a threaded telescopic rod along the length direction of the insulating rod, and the horizontal telescopic rod (2) is arranged on the threaded telescopic rod.