CN210571518U

CN210571518U - Transformer on-load voltage regulation oil sampling interface and transformer with same

Info

Publication number: CN210571518U
Application number: CN201921477980.9U
Authority: CN
Inventors: 常军; 朱建红; 孙栋
Original assignee: Jiangsu Wanbiao Inspection Co ltd
Current assignee: Jiangsu Wanbiao Inspection Co ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-05-19
Anticipated expiration: 2029-09-06

Abstract

In order to maintain and manage the transformer oil in operation, the test is carried out according to the period or sampling requirement. The existing sampling device has the phenomenon of oil leakage due to untight sealing, so that the environmental pollution is easily caused; moreover, because it is great that sealed not tight makes oil appearance receive external factor's interference, the experimental accuracy of serious influence, the utility model provides a transformer has load pressure regulating oil sample interface, it has interface body, union 2, transformer end joint and constitutes. The transformer on-load voltage regulation oil sampling interface with the structure can effectively solve the technical problem that the whole transformer oil in the transformer cavity is polluted because a transformer oil storage device (such as an injector) is directly inserted into the transformer cavity in the prior art.

Description

Transformer on-load voltage regulation oil sampling interface and transformer with same

Technical Field

The utility model relates to a device is used in the transformer test, especially relates to a transformer has carried pressure regulating oil sample interface and has the transformer of this interface.

Background

When the transformer oil is tested, an oil sample is taken from the transformer, and the original oil is required to be taken out and cannot be mixed with air, otherwise, the accuracy of a test result is influenced. When an oil sample is taken, the common method is to unscrew a sealing nut and loosen an oil plug screw of an oil sample valve; the upper part of the latex tube is longitudinally split and then tied on an oil outlet nozzle of a transformer oil sample valve, and then the head of the sample containing injector is inserted into the latex tube to extract oil for testing. The disadvantages of this method of sampling oil are: need the manual air of getting rid of before the sample, it is inaccurate to cause the chemical examination because of mixing the air in the very easy messenger oil appearance of sample in-process, and the emulsion tube landing easily needs two people to operate simultaneously, can also waste transformer oil simultaneously.

Furthermore, before testing the transformer, after the transformer power is interrupted, the transformer is disconnected, and the interruption of the mains power, which causes customer dissatisfaction and risks for faults in facilities that are not adequately notified or do not give sufficient readiness time, as more and more equipment is dependent on computer processors and other similar equipment, maintaining continuous power is a high priority and therefore it is desirable to have an oil sampling system that does not require the transformer power to be disconnected, and therefore, is necessary for transformer oil removal sampling in on-load environments.

In addition, because the transformer which normally works can vibrate normally, whether the connection between the transformer loaded voltage regulation oil sampling interface and the transformer is reliable or not, namely whether the interface is loosened or leaked or not can be caused, further causing serious environmental and cost problems of a utility company, and being a problem in the prior art.

In addition, because the transformers that each equipment manufacture factory produced are different, and then the size of the oil-out of transformer is also different, often need be equipped with corresponding adapter to connect with the screw thread mode, once take a sample very waste time, hard.

SUMMERY OF THE UTILITY MODEL

To above-mentioned a great deal of technical problem, the utility model provides a following technical scheme can effectively solve foretell technical problem, the utility model discloses a technical scheme as follows:

a transformer on-load pressure regulating oil sampling interface comprises an interface body 1, a movable joint 2 and a transformer end joint. The transformer on-load voltage regulation oil sampling interface with the structure can effectively solve the technical problem that the whole transformer oil in the transformer cavity is polluted because a transformer oil storage device (such as an injector) is directly inserted into the transformer cavity in the prior art.

Further, transformer end joint and interface body fixed connection, and transformer end joint's quantity be a plurality of, a plurality of transformer end joint 3 be located coplanar, adjacent transformer end joint's axial becomes certain contained angle, wherein two are adjacent 3 axis contained angles of transformer end joint are the same, the design of above-mentioned structure can effectively avoid transformer end structure 3 to take place mutual interference when transformer main part threaded connection, has effectively reduced the assembly degree of difficulty.

Furthermore, the end of the transformer end connector, which is far away from the connector body, is a hollow screw structure I, and a plurality of hollow screw structures I have different outer diameter sizes, and the design of the structure greatly improves the adaptability of the transformer on-load voltage regulation oil sampling connector, so that the transformer on-load voltage regulation oil sampling connector can meet different transformer oil outlet sizes.

Furthermore, the first hollow screw structure is in threaded connection with an oil outlet of the transformer, the transformer on-load pressure regulating oil sampling interface further comprises a movable joint, the axis direction of the movable joint is perpendicular to the plane where the end joints of the plurality of transformers are located, two ends of the movable joint are both hollow screw structures formed by external threads, threads at one ends of the second hollow screw structures are in threaded connection with the interfaces on the interface body, and threads at the other ends of the second hollow screw structures are connected with the transformer oil storage device. Through above-mentioned threaded connection, can effectively improve the sealing performance at the junction, and then guarantee that transformer oil can not revealed or polluted by external impurity.

Furthermore, a communication channel is arranged inside the interface body and communicates the first hollow screw rod structure and the second hollow screw rod structure, and transformer oil in the transformer sequentially passes through the first hollow screw rod structure, the communication channel and the second hollow screw rod structure and then reaches a transformer oil storage device. Through this design, improved the purity of the transformer oil sample who obtains, and simplified the extraction degree of difficulty of transformer oil.

Further, wherein the transformer oil storage device is an injector.

Further, the number of the terminal connectors of the transformer is 4.

Furthermore, the transformer is provided with the on-load voltage regulation oil sampling interface.

Drawings

Fig. 1 is the utility model discloses transformer has to carry pressure regulating oil sampling interface front view.

Fig. 2 is the utility model discloses the transformer has load pressure regulating oil sampling interface shaft side view.

Fig. 3 is the utility model discloses the transformer has the movable joint among the pressure regulating oil sampling interface of carrying.

Fig. 4 is the utility model discloses have the transformer in the transformer has on-load voltage regulation oil sampling interface.

The interface comprises an interface body-1, a movable joint-2, a transformer end joint-3, a choke plug-4, a transformer-5, a transformer end joint-3.1, a transformer end joint-3.2, a transformer end joint-3.3 and a transformer end joint-3.4.

Detailed Description

The following will combine the utility model discloses try on your general drawing, to the technical scheme in the utility model go into and out, describe completely, obviously, the embodiment that describes is only a partial embodiment of the utility model, rather than whole embodiment, based on the embodiment in the utility model, all other embodiments that the technical staff in the field obtained under the prerequisite that does not make creative work all belong to the protection scope of the utility model. As shown in fig. 1-4:

a transformer on-load pressure regulating oil sampling interface comprises an interface body 1, a movable joint 2 and a transformer end joint 3, and is characterized in that the transformer end joint 3 is fixedly connected with the interface body, the number of the transformer end joints 3 is multiple, the multiple transformer end joints 3 are located in the same plane, the axial directions of the adjacent transformer end joints 3 form a certain included angle, the included angles of the axial lines of the two adjacent transformer end joints 3 are the same, one end, far away from the interface body, of the transformer end joint 3 is of a hollow screw rod structure I, the hollow screw rod structures I have different outer diameter sizes, the hollow screw rod structure I is in threaded connection with an oil outlet of a transformer, the transformer on-load pressure regulating oil sampling interface further comprises the movable joint 2, the axial direction of the movable joint 2 is perpendicular to the plane where the multiple transformer end joints 3 are located, the transformer oil storage device is characterized in that two ends of the movable joint 2 are both hollow screw structures II formed by external threads, threads at one ends of the hollow screw structures II are in threaded connection with interfaces on the interface body, threads at the other ends of the hollow screw structures II are connected with the transformer oil storage device, a communicating channel is arranged inside the interface body 1 and communicates the hollow screw structures I and the hollow screw structures II, and transformer oil in the transformer sequentially passes through the hollow screw structures I, the communicating channel and the hollow screw structures II and reaches the transformer oil storage device.

Wherein the transformer oil storage device is an injector.

The number of the transformer end joints is 4, the transformer end joints are respectively a transformer end joint I, a transformer end joint II, a transformer end joint III and a transformer end joint IV, and the transformer end joints, the transformer end joints II and the transformer end joints III are uniformly arranged at 90 degrees.

A transformer is provided with the transformer on-load voltage regulation oil sampling interface and is provided with an oil outlet, and when transformer oil collection is not needed, the oil outlet is closed by a plug 4.

The working principle is as follows: when need not carrying out the sampling to transformer oil and examining time measuring, the oil-out on the transformer 5 is by end cap 4 shutoff, examines time measuring when regularly to transformer oil, unloads end cap 4, will the utility model provides a multifunctional transformer has load pressure regulating oil sampling interface and transformer oil-out to pass through threaded connection, when carrying out threaded connection, selects the transformer end connector supporting with this oil-out, and other transformer end connector also by the end cap shutoff, guarantees like this that transformer oil can only flow through interface body 1 through the transformer end connector who connects, and then flows out from hollow screw structure two, and cavity screw rod two and transformer oil storage device (like the syringe) threaded connection this moment guarantee transformer oil under the condition that does not receive external disturbance, get into storage device.

The above embodiments are provided only for the purpose of illustration, not for the limitation of the present invention, and those skilled in the relevant art can make various changes or modifications without departing from the spirit and scope of the present invention, therefore, all equivalent technical solutions should also belong to the scope of the present invention, and should be defined by the claims.

Claims

1. A transformer on-load pressure regulating oil sampling interface is provided with an interface body (1), movable joints (2) and a plurality of transformer end joints (3), and is characterized in that the transformer end joints (3) are fixedly connected with the interface body, the number of the transformer end joints (3) is multiple, the transformer end joints (3) are located in the same plane, the axial directions of the adjacent transformer end joints (3) form a certain included angle, the included angles of the axial lines of the two adjacent transformer end joints (3) are the same, one end, away from the interface body, of each transformer end joint (3) is of a hollow screw structure I, the hollow screw structures I are different in outer diameter size, the hollow screw structures I are in threaded connection with oil outlets of transformers, and the transformer on-load pressure regulating oil sampling interface further comprises the movable joints (2), the axial direction of the movable joint (2) is perpendicular to the plane where the transformer end joints (3) are located, two ends of the movable joint (2) are both hollow screw structures formed by external threads, threads at one ends of the hollow screw structures are in threaded connection with the interfaces on the interface body, threads at the other ends of the hollow screw structures are connected with a transformer oil storage device, a communicating channel is arranged inside the interface body (1), the communicating channel communicates the hollow screw structures I and the hollow screw structures II, and transformer oil in the transformer sequentially passes through the hollow screw structures I, the communicating channel and the hollow screw structures II to reach the transformer oil storage device.

2. The transformer on-load voltage regulation oil sampling interface of claim 1, characterized in that: wherein the transformer oil storage device is an injector.

3. The transformer on-load voltage regulation oil sampling interface of claim 1, characterized in that: the number of the transformer end connectors (3) is 4.

4. A transformer having a transformer on-load tap changer sampling interface as claimed in any one of claims 1 to 3, wherein: the oil outlet is provided with an oil outlet, and when transformer oil collection is not needed, the oil outlet is closed by a plug (4).