Outdoor insulation current transformer

Abstract

The utility model relates to the technical field of circuit transformer devices, in particular to an outdoor insulation current transformer which comprises an outdoor insulation current transformer body, a protection assembly is externally connected to the front end of a tank type current transformer body, and the protection assembly is connected with the external connection. When the outside is connected with a protection assembly, a wiring end is arranged in a wiring area to be connected with the protection assembly, after connection is completed, an adjusting threaded column is rotated to be meshed with an adjusting plate to move downwards, the adjusting plate pushes a push rod downwards, and the protection assembly is connected with the protection assembly. The anti-magnetic wire fixing seat at the bottom of the push rod carries out anti-magnetic protection on the exposed head section of the lower wire segment, the overload display window displays the magnitude of external current, and when the magnitude of the connected current is overloaded, the protection assembly transmits an overload signal to the overload protector through the connecting wire, so that the circuit of the overload protector is disconnected, and the saturation phenomenon of the mutual inductor is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of current transformer devices, in particular to an outdoor insulating current transformer. Background Art

[0002] The principle of current transformer is based on the principle of electromagnetic induction. The current transformer is composed of a closed iron core and a winding. Its primary winding has very few turns and is connected in series in the circuit of the current to be measured, so it often has the entire current of the circuit flowing through it. The secondary winding has more turns and is connected in series in the measuring instrument and the protection circuit. When the current transformer is working, its secondary circuit is always closed, so the impedance of the series coil of the measuring instrument and the protection circuit is very small, and the working state of the current transformer is close to a short circuit. The current in the power generation, transformation, transmission, distribution and power consumption lines varies greatly, ranging from a few amperes to tens of thousands of amperes. In order to facilitate measurement, protection and control, it needs to be converted into a relatively uniform current. In addition, the voltage on the line is generally high, so it is very dangerous to measure directly. The current transformer plays the role of current conversion and electrical isolation;

[0003] According to patent publication number CN209118910U, an outdoor composite insulated current transformer includes an AC transformer body, a card slot is provided at the bottom end of the AC transformer body, a base is connected to the inside of the card slot, a slide slot is provided at the bottom of the base, and a lower telescopic rod, a fixing block and a connecting block are arranged above the AC transformer body. However, during use, the wiring area of ​​the device is exposed to the outside due to its connecting part, which is easily interfered by the outside world, affecting its connection process. At the same time, when the external transmission current is overloaded, there is no countermeasure, which easily causes the transformer to be saturated, affecting the safe use of the transformer. When the transformer is used outdoors, its fixing method is not convenient for the transfer and stability of the transformer.

[0004] In view of this, we propose an outdoor insulated current transformer. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides an outdoor insulating current transformer.

[0006] The technical solution of the utility model is:

[0007] An outdoor insulated current transformer comprises an outdoor insulated current transformer body, the output end of the outdoor insulated current transformer body is equipped with a protection component, the bottom surface of the protection component is slidably connected with a fixing component, the protection component comprises: an alarm module, an overload display window, an anti-magnetic fixed line seat, an overload protector, etc., the front end of the protection component is equipped with an alarm module, the upper part of the alarm module is equipped with an overload display window, the bottom of the protection component is equipped with a connecting line, the end of the connecting line is provided with an overload protector, the front end of the overload protector is equipped with an adjusting threaded column, the side of the adjusting threaded column is meshedly connected with an adjusting plate, the bottom surface of the adjusting plate is provided with a push rod, and the end of the push rod is provided with an anti-magnetic fixed line seat.

[0008] As a preferred technical solution, a wiring area is provided below the anti-magnetic wire holder.

[0009] As a preferred technical solution, the fixing component includes: a locking device, a fitting groove, a connecting seat one, and a connecting seat two. The locking device is installed on the upper end of the fixing component, a fitting groove is provided on the side of the fixing component, the inside of the fitting groove is slidingly connected with the connecting seat one, and the rear end of the connecting seat one is installed with the connecting seat two.

[0010] As a preferred technical solution, a mounting base is fixedly installed above the second connecting seat, a rear end plate is installed at the rear end of the mounting base, and a winding outer protective cover is opened above the rear end plate.

[0011] As a preferred technical solution, a winding body is installed at the front end of the winding outer protective cover, and an observation window is installed below the winding body.

[0012] As a preferred technical solution, a side mounting plate is fixedly mounted on the rear end of the observation window.

[0013] As a preferred technical solution, a protective shell is provided at the rear end of the side mounting plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model connects the protection component to the front end of the tank current transformer body, and the protection component is connected to the external connection to transmit the current to the winding body inside the tank current transformer body. When the outside world is connected to the protection component, the wiring terminal is first placed in the wiring area and connected to the protection component. After the connection is completed, the adjusting threaded column is rotated to make the meshing adjustment plate move downward, and the adjustment plate pushes the push rod downward, so that the anti-magnetic fixed wire seat at the bottom of the push rod performs anti-magnetic protection on the first segment of the exposed wire segment below, and prevents it from falling off. The overload display window displays the external current. When the connected current is overloaded, the protection component transmits its overload signal to the overload protector through the connecting line, disconnects its circuit, avoids saturation of the transformer, and affects the safety of the transformer. At the same time, the alarm module is connected to the mobile phone end by Bluetooth to send the overload signal, thereby improving the safety of the transformer.

[0016] 2. The utility model requires that the current transformer body be fixedly installed when the outdoor insulated current transformer body is used outdoors. It is only necessary to lock and fix the fixing component and the area to be fixed by a locker, and then slide the connecting seat 1 and the connecting seat 2 at the bottom of the current transformer body into the fitting groove, thereby avoiding the need to carry the heavy transformer body when fixing, thereby improving the convenience of the transformer transfer and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the outdoor insulated current transformer of the utility model;

[0018] Figure 2 This is a schematic diagram of the appearance component structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the protection component of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the fixing component of the utility model.

[0021] In the figure: 1. Main body of outdoor insulated current transformer; 11. Protective shell; 12. Winding main body; 13. Observation window; 14. Side mounting plate; 15. Winding outer protective cover; 16. Rear end plate; 17. Mounting base; 2. Protection component; 21. Alarm module; 22. Overload display window; 23. Adjustment thread column; 24. Adjustment plate; 25. Push rod; 26. Anti-magnetic fixed wire seat; 27. Wiring area; 28. Overload protector; 29. ​​Connecting wire; 3. Fixing component; 31. Locking device; 32. Fitting groove; 33. Connecting seat one; 34. Connecting seat two. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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 creative work are within the scope of protection of the utility model.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] See also Figures 1 to 4 , the utility model provides a technical solution:

[0025] An outdoor insulated current transformer comprises an outdoor insulated current transformer body 1, a protection component 2 is installed at the output end of the outdoor insulated current transformer body 1, a fixing component 3 is slidably connected to the bottom surface of the protection component 2, the protection component 2 comprises: an alarm module 21, an overload display window 22, an anti-magnetic fixed line seat 26, an overload protector 28, etc., the alarm module 21 is installed at the front end of the protection component 2, the overload display window 22 is installed above the alarm module 21, a connecting line 29 is installed at the bottom of the protection component 2, the end of the connecting line 29 is provided with an overload protector 28, an adjusting threaded column 23 is installed at the front end of the overload protector 28, the side of the adjusting threaded column 23 is meshedly connected with an adjusting plate 24, a push rod 25 is provided on the bottom surface of the adjusting plate 24, an anti-magnetic fixed line seat 26 is provided at the end of the push rod 25, and a wiring area 27 begins below the anti-magnetic fixed line seat 26.

[0026] It should be added that, by connecting the protection component 2 to the front end of the outdoor insulated current transformer body 1, the protection component 2 is connected to the outside world, and its current is transmitted to the internal winding body 12 of the outdoor insulated current transformer body 1. When the outside world is connected to the protection component 2, the terminal is first placed in the wiring area 27 to connect with the protection component 2. After the connection is completed, the adjusting threaded column 23 is rotated to engage the adjusting plate 24 and move downward. The adjusting plate 24 pushes the push rod 25 downward, so that the anti-magnetic fixed wire seat 26 at the bottom of the push rod 25 performs anti-magnetic protection on the exposed first section of the lower line segment, and prevents it from falling off. The overload display window 22 displays the external current. When the connected current is overloaded, the protection component 2 transmits its overload signal to the overload protector 28 through the connecting line 29, disconnecting its circuit to avoid saturation of the transformer and affecting the safety of the transformer. At the same time, the alarm module 21 is connected to the mobile phone end by Bluetooth to send the overload signal to improve the safety of the transformer.

[0027] As a preferred embodiment of the present invention, the fixing component 3 includes: a locking device 31, a fitting groove 32, a connecting seat 1 33, and a connecting seat 2 34. The locking device 31 is installed at the upper end of the fixing component 3, a fitting groove 32 is provided on the side of the fixing component 3, a connecting seat 1 33 is slidably connected inside the fitting groove 32, a connecting seat 2 34 is installed at the rear end of the connecting seat 1 33, a mounting base 17 is fixedly installed above the connecting seat 2 34, a rear end plate 16 is installed at the rear end of the mounting base 17, and a winding outer protective cover 15 is provided above the rear end plate 16.

[0028] It is worth mentioning that when the outdoor insulated current transformer body 1 is used outdoors, the current transformer body needs to be fixed and installed. It is only necessary to lock the fixing component 3 and the area to be fixed with the locker 31, and then slide the connecting seat 1 33 and the connecting seat 2 34 at the bottom of the current transformer body into the fitting groove 32, avoiding the need to carry the heavy transformer body when fixing, thereby improving the convenience of transferring and installing the transformer.

[0029] As a preferred embodiment of this embodiment, a winding body 12 is installed at the front end of the winding outer protective sleeve 15, an observation window 13 is installed below the winding body 12, a side mounting plate 14 is fixedly installed at the rear end of the observation window 13, and an insulating protective shell 11 is opened at the rear end of the side mounting plate 14.

[0030] During specific use, the insulating protective shell 11 is used to protect the outdoor insulated current transformer body 1 from the outside world as a whole, so as to prevent the interior thereof from being disturbed by ultraviolet rays for a long time.

[0031] When an outdoor insulated current transformer of the utility model is used, firstly, the protection component 2 is connected to the front end of the outdoor insulated current transformer body 1, and the protection component 2 is connected to the outside world, and its current is transmitted to the internal winding body 12 of the outdoor insulated current transformer body 1. When the outside world is connected to the protection component 2, the wiring terminal is first placed in the wiring area 27 and connected to the protection component 2. After the connection is completed, the adjusting threaded column 23 is rotated to engage the adjusting plate 24 to move downward, and the adjusting plate 24 pushes the push rod 25 downward, so that the anti-magnetic fixed line seat 26 at the bottom of the push rod 25 performs anti-magnetic protection on the first section of the exposed wire segment below, and prevents it from falling off. The overload display window 22 displays the external current. When the connection is completed, the adjusting threaded column 23 is rotated to engage the adjusting plate 24 to move downward, and the adjusting plate 24 pushes the push rod 25 downward, so that the anti-magnetic fixed line seat 26 at the bottom of the push rod 25 performs anti-magnetic protection on the exposed first section of the wire segment below, and prevents it from falling off. The overload display window 22 displays the external current. When the connected current is overloaded, the protection component 2 transmits its overload signal to the overload protector 28 through the connecting line 29, disconnecting its circuit to avoid saturation of the transformer and affecting the safety of the transformer. At the same time, the alarm module 21 is connected to the mobile phone via Bluetooth to send the overload signal to improve the safety of the transformer. When the outdoor insulated current transformer body 1 is used outdoors, the current transformer body needs to be fixed and installed. It is only necessary to lock and fix the fixing component 3 and the area to be fixed with the locker 31, and then slide the connecting seat 1 33 and the connecting seat 2 34 at the bottom of the current transformer body into the fitting groove 32, avoiding the need to carry the heavy transformer body when fixing, thereby improving the convenience of transferring and installing the transformer.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An outdoor insulated current transformer, comprising an outdoor insulated current transformer body (1), characterized in that: The output end of the outdoor insulated current transformer body (1) is provided with a protection component (2), the bottom surface of the protection component (2) is slidably connected with a fixing component (3), the protection component (2) comprises: an alarm module (21), an overload display window (22), an anti-magnetic fixed wire seat (26), and an overload protector (28), the front end of the protection component (2) is provided with an alarm module (21), the upper part of the alarm module (21) is provided with an overload display window (22), the bottom of the protection component (2) is provided with a connecting wire (29), the end of the connecting wire (29) is provided with an overload protector (28), the front end of the overload protector (28) is provided with an adjusting threaded column (23), the side surface of the adjusting threaded column (23) is meshingly connected with an adjusting plate (24), the bottom surface of the adjusting plate (24) is provided with a push rod (25), the end of the push rod (25) is provided with an anti-magnetic fixed wire seat (26).

2. An outdoor insulated current transformer as claimed in claim 1, characterized in that: A wiring area (27) is formed below the anti-magnetic wire fixing seat (26).

3. An outdoor insulated current transformer as claimed in claim 1, characterized in that: The fixing assembly (3) comprises: a locking device (31), a fitting groove (32), a connecting seat 1 (33), and a connecting seat 2 (34). The locking device (31) is installed at the upper end of the fixing assembly (3), a fitting groove (32) is provided on the side of the fixing assembly (3), the inside of the fitting groove (32) is slidably connected with the connecting seat 1 (33), and the connecting seat 2 (34) is installed at the rear end of the connecting seat 1 (33).

4. An outdoor insulated current transformer as claimed in claim 3, characterized in that: A mounting base (17) is fixedly mounted above the second connecting seat (34), a rear end plate (16) is mounted at the rear end of the mounting base (17), and a winding outer protective sleeve (15) is provided above the rear end plate (16).

5. An outdoor insulated current transformer as claimed in claim 4, characterized in that: A winding body (12) is installed at the front end of the winding outer protective sleeve (15), and an observation window (13) is installed below the winding body (12).

6. An outdoor insulated current transformer as claimed in claim 5, characterized in that: A side mounting plate (14) is fixedly mounted on the rear end of the observation window (13).

7. An outdoor insulated current transformer as claimed in claim 6, characterized in that: A protective housing (11) is provided at the rear end of the side mounting plate (14).

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