Transformer box
By setting a detachable sealing cover and arc-shaped insulating tube in the transformer box, and using the connection between ground wire and arc-shaped conductor, the problem of difficulty in monitoring the induction current of the transformer core in the prior art is solved, and abnormal currents are detected and handled in a timely manner to ensure the safe operation of the transformer.
Patent Information
- Application Number
- CN202420536001.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-03-20
AI Technical Summary
The existing transformer box is difficult to monitor the induction current of the iron core, resulting in the inability to detect and deal with abnormal situations in time, which may cause the iron core to burn and endanger the safe operation of the transformer.
A transformer box is designed, by opening a maintenance port on the side wall of the box body, a detachable sealing cover is provided, and the ground wire is connected to the arcuate conductor using an arcuate insulating tube and arcuate conductor, allowing the current of the arcuate conductor to be detected without opening the sealing cover.
It realizes that without affecting the normal operation of the transformer, it can timely detect and understand the induced current of the transformer core, and promptly detect and deal with abnormal currents, so as to avoid core burning and transformer safety risks.
Smart Images
Figure CN222600658U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of transformer equipment, and in particular relates to a transformer box. Background Art
[0002] In large transformers, a box is usually used for protection, and transformer oil is set in the transformer. The main functions of transformer oil are: (1) Insulation: Transformer oil has a much higher insulation strength than air. Insulating materials immersed in oil can not only improve insulation strength, but also protect against moisture erosion. (2) Heat dissipation: Transformer oil has a large specific heat and is often used as a coolant. The heat generated when the transformer is running causes the oil near the core and winding to expand and rise. Through the upward and downward convection of the oil, the heat is dissipated through the radiator to ensure the normal operation of the transformer. (3) Arc extinguishing: On oil circuit breakers and transformer on-load tap changers, arcs are generated when contacts are switched. Because transformer oil has good thermal conductivity and can separate a large amount of gas under the high temperature of the arc, it generates a large pressure, thereby improving the arc extinguishing performance of the medium and extinguishing the arc quickly. If the iron core generates current due to magnetic field induction, it will cause local overheating of the iron core, which will deteriorate the transformer oil and shorten the service life of the transformer. When the circulating current is large, it may even directly cause the iron core to burn out, which is extremely harmful to the safe operation of the transformer. Since the transformer is installed in a box, the induced current of the iron core cannot be monitored in real time. Utility Model Content
[0003] Aiming at the technical problem that it is difficult to monitor the induced current of the iron core in the existing transformer box, the utility model provides a transformer box, which is convenient for detecting the induced current of the iron core.
[0004] The utility model provides a transformer box, comprising a box body, a sealing cover, an arc-shaped insulating tube, an arc-shaped conductor, a ground wire and a transformer, wherein the transformer is located inside the box body, the transformer is provided with an iron core, the iron core is connected to the ground wire, a side wall of the box body is provided with an inspection port, the sealing cover is detachably arranged at the inspection port, the arc-shaped insulating tube is arranged on a side of the sealing cover away from the box body, a first electrical connector and a second electrical connector are arranged on a side of the sealing cover facing the box body, the first electrical connector and the second electrical connector are respectively detachably connected to the ground wire, the arc-shaped conductor is located in the arc-shaped insulating tube, and the two ends of the arc-shaped conductor are respectively electrically connected to the first electrical connector and the second electrical connector.
[0005] Furthermore, the sealing cover and the box body are connected by bolts.
[0006] Furthermore, the sealing cover is made of insulating material.
[0007] The transformer box is connected with a ground wire on the iron core of the transformer, so that the induced current generated by the iron core can be conducted through the ground wire. At the same time, an arc-shaped insulating tube and an arc-shaped conductor are arranged on the sealing cover of the box body. At the same time, the ground wire is connected with the arc-shaped conductor. In daily inspections, the current of the arc-shaped conductor can be detected by a clamp-type ammeter without opening the sealing cover, so that the induced current generated by the transformer iron core can be timely understood, and any abnormal current can be discovered and processed in time. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0009] Figure 1 The figure is a schematic diagram of the structure of a transformer box. DETAILED DESCRIPTION
[0010] The utility model discloses a transformer box, which is convenient for detecting the induced current of the iron core.
[0011] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution in the utility model. Obviously, what is described is only a part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0012] See also Figure 1 As shown, the utility model discloses a transformer box, including a box body 2, a sealing cover 7, an arc-shaped insulating tube 4, an arc-shaped conductor 5, a ground wire 1 and a transformer, wherein the transformer is located inside the box body 2, the transformer is provided with an iron core, the iron core is connected to the ground wire 1, the side wall of the box body 2 is provided with an inspection port 8, the sealing cover 7 is detachably arranged at the inspection port 8, the arc-shaped insulating tube 4 is arranged on the side of the sealing cover 7 away from the box body 2, the side of the sealing cover 7 facing the box body 2 is provided with a first electrical connector 3 and a second electrical connector 6, the first electrical connector 3 and the second electrical connector 6 are respectively detachably connected to the ground wire 1, the arc-shaped conductor 5 is located in the arc-shaped insulating tube 4, and the two ends of the arc-shaped conductor 5 are respectively electrically connected to the first electrical connector 3 and the second electrical connector 6.
[0013] The sealing cover 7 and the box body 2 are connected by bolts.
[0014] The sealing cover 7 is made of insulating material.
[0015] The transformer box is connected with a ground wire 1 on the iron core of the transformer, so that the induced current generated by the iron core can be conducted through the ground wire 1. At the same time, an arc-shaped insulating tube 4 and an arc-shaped conductor 5 are arranged on the sealing cover 7 of the box body 2. At the same time, the ground wire 1 is connected with the arc-shaped conductor 5. In daily inspections, the current of the arc-shaped conductor 5 can be detected by a clamp-type ammeter without opening the sealing cover 7, so that the induced current generated by the transformer core can be timely understood, and any abnormal current can be discovered and processed in time.
[0016] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.
Claims
1. A transformer box, characterized in that: The utility model comprises a box body, a sealing cover, an arc-shaped insulating tube, an arc-shaped conductor, a ground wire and a transformer, wherein the transformer is located inside the box body, the transformer is provided with an iron core, the iron core is connected to the ground wire, an inspection port is opened on the side wall of the box body, the sealing cover is detachably arranged at the inspection port, the arc-shaped insulating tube is arranged on the side of the sealing cover away from the box body, the side of the sealing cover facing the box body is provided with a first electrical connector and a second electrical connector, the first electrical connector and the second electrical connector are respectively detachably connected to the ground wire, the arc-shaped conductor is located in the arc-shaped insulating tube, and the two ends of the arc-shaped conductor are respectively electrically connected to the first electrical connector and the second electrical connector.
2. A transformer box according to claim 1, characterized in that: The sealing cover and the box body are connected by bolts.
3. A transformer box according to claim 1, characterized in that: The sealing cover is made of insulating material.