Auxiliary training device for power transformation secondary current loop

Abstract

The utility model belongs to the technical field of electric power engineering training, and particularly relates to an auxiliary training device for a power transformation secondary current loop, which is characterized in that a user can select required circuit elements and drag the circuit elements into a circuit to be constructed, and the circuit performance is analyzed through a vertical table so as to verify the effect; according to the device, the heat dissipation holes of the circuit simulator body can be blocked or unfolded by flexibly pushing and pulling the dustproof baffles on the inner sides of the sliding rails, so that dust is prevented from entering the circuit simulator or rapid heat dissipation of the simulator is enhanced; aiming at the condition of open circuit of a circuit loop, a high-heat-conductivity graphite block on the inner side of the heat-conducting joint rapidly absorbs heat, an internal silica gel air bag rapidly expands after being heated, a movable ejection block is ejected upwards, in the process, the movable ejection block upwards pushes a flat spring, and the flat spring at the lower end of a heat-resisting plate is obliquely ejected out along a landslide surface, so that a conductive joint is replaced; the rubber insulation pad abuts against the contact type electric sheet, so that the circuit simulator body is powered off, and equipment damage caused by open circuit is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power engineering training, and in particular relates to a transformer secondary current loop auxiliary training device. Background Art

[0002] Secondary professional technicians in the power system need to master the relevant principles of the secondary current circuit of the substation, especially when the installation, daily maintenance, overhaul and technical transformation of the secondary equipment of the project are completed, the current circuit needs to be sealed by CT. In order to ensure that the current circuit is not open, it is necessary to check the connectivity of the current circuit.

[0003] After searching, the publication number: CN213751461U announced a substation secondary current loop auxiliary training device. In the utility model, the utility model is small and concise, and is arranged according to the substation site. The principle of the current loop can be intuitively understood, and it is convenient to carry to the site of each training team for use. However, for the situation where the circuit loop is open, this device is not equipped with other auxiliary structures, thereby reducing the safety of the simulator.

[0004] Therefore, a substation secondary current loop auxiliary training device is designed to solve the above problems. Utility Model Content

[0005] To solve the problems raised in the above background technology. The utility model provides a substation secondary current loop auxiliary training device. The circuit simulator body of the device can provide functions such as circuit component library and signal generator to help users build and test their own circuit designs. Before use, the plug can be inserted into the incoming port of the incoming box, and the current flows into the conductive connector and energizes the contact type electric sheet. The three-phase resistance strain gauge converts the change of the upper strain into the change of resistance, so as to accurately measure the parameters. The user can select the required circuit elements and drag and drop them into the circuit you want to build, and analyze the circuit performance by erecting a table to verify the effect; on the other hand, the device can block or expand the heat dissipation holes of the circuit simulator body through the flexible dust baffle on the inner side of the push-pull slide rail, so as to prevent dust from entering the interior or enhance the rapid heat dissipation of the simulator.

[0006] In the case of an open circuit in the circuit, the high thermal conductivity graphite block on the inside of the thermal joint absorbs heat quickly, and the internal silicone airbag expands rapidly after being heated, pushing the movable top block upward. During this process, the movable top block pushes the leaf spring upward, and the leaf spring at the lower end of the heat-resistant plate is pushed outward along the oblique cut of the landslide surface, thereby replacing the conductive joint and contacting the contact electric sheet through the rubber insulating pad, thereby powering off the circuit simulator body to prevent equipment damage caused by the open circuit.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a substation secondary current loop auxiliary training device, including a circuit training protection mechanism, the circuit training protection mechanism including a circuit simulator body, an incoming line box, a contact electric sheet, a three-phase resistance strain gauge and a conductive joint, the outer side of the circuit simulator body is fixedly connected to one end of the incoming line box, the contact electric sheet is attached to one side of the conductive joint, the three-phase resistance strain gauge is clamped on the inner side of the contact electric sheet, one side of the conductive joint is fixedly connected to the surface of the incoming line box, and a protection component is also arranged inside the incoming line box.

[0008] As a preferred auxiliary training device for a substation secondary current circuit of the utility model, the protection component includes a heat-resistant plate, a leaf spring and a rubber insulating pad, the heat-resistant plate is fixedly connected to the inner side of the incoming line box, the leaf spring is fixedly connected to the bottom of the heat-resistant plate, and the rubber insulating pad is adhesively connected to the bottom of the leaf spring.

[0009] As a preferred auxiliary training device for a substation secondary current circuit of the utility model, a high thermal conductivity graphite block, a silicone airbag and a movable top block are also provided on the inner side of the conductive joint, the high thermal conductivity graphite block is fixedly connected to the inside of the conductive joint, the silicone airbag is fixedly connected to the top of the high thermal conductivity graphite block, and the movable top block is slidably connected to the inside of the conductive joint.

[0010] As a preferred embodiment of the auxiliary training device for a transformer secondary current loop of the utility model, a landslide surface with an inclined structure is further provided on the inner side of the top of the conductive joint.

[0011] As a preferred embodiment of the utility model of a substation secondary current circuit auxiliary training device, slide rails and dust baffles are also provided on both sides of the circuit simulator body, the slide rails are fixedly connected to the surface of the circuit simulator body, and the dust baffles are slidably connected to the inner side of the slide rails.

[0012] As a preferred embodiment of the auxiliary training device for a transformer secondary current loop of the utility model, a plurality of groups of heat dissipation holes arranged at equal intervals are further provided on both sides of the circuit simulator body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, the plug is inserted into the incoming port of the incoming box, the current flows into the conductive joint and energizes the contact type electric sheet, and the three-phase resistance strain gauge converts the change of the upper strain into the change of the resistance, so as to accurately measure the parameters. The user can select the required circuit elements and drag and drop them into the circuit you want to build, and analyze the circuit performance by setting up a table to verify the effect; on the other hand, the device can block or expand the heat dissipation holes of the circuit simulator body through the flexible dust baffle on the inner side of the push-pull slide rail, so as to prevent dust from entering the interior or enhance the rapid heat dissipation of the simulator.

[0015] 2. In the utility model, in case of an open circuit in the circuit, the high thermal conductivity graphite block on the inner side of the thermal joint absorbs heat quickly, and the internal silicone airbag expands rapidly after being heated, pushing the movable top block upward. During this process, the movable top block pushes the leaf spring upward, and the leaf spring at the lower end of the heat-resistant plate is pushed outward along the slope, thereby replacing the conductive joint and contacting the contact electric sheet through the rubber insulating pad, thereby powering off the circuit simulator body to prevent equipment damage caused by the open circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure inside the incoming line box of the utility model;

[0019] Figure 3 This is a diagram showing the shielding effect of the dustproof baffle in the utility model;

[0020] Figure 4 It is a cross-sectional view of the interior of the conductive joint in the utility model;

[0021] Figure 5 This is a diagram showing the middle leaf spring of the utility model being opened;

[0022] In the figure:

[0023] 1. Circuit training protection mechanism; 11. Circuit simulator body; 12. Incoming box; 13. Contact electric sheet; 14. Three-phase resistance strain gauge; 15. Conductive joint; 2. Protection assembly; 21. Heat-resistant plate; 22. Leaf spring; 23. Rubber insulating pad; 3. High thermal conductivity graphite block; 4. Silicone airbag; 5. Movable top block; 6. Slide surface; 7. Slide rail; 8. Dust baffle; 9. Heat dissipation hole. DETAILED DESCRIPTION

[0024] 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.

[0025] like Figure 1 As shown:

[0026] A substation secondary current loop auxiliary training device is disclosed in CN213751461U. The utility model is compact and concise, and is arranged on-site in a simplified manner according to the substation. The principle of the current loop can be intuitively understood, and it is convenient to carry to various training teams for on-site use. However, in the case of an open circuit, this device is not provided with other auxiliary structures, thereby reducing the safety of the simulator. On this basis, a circuit training protection mechanism 1 is added.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown:

[0028] In an optional embodiment: the circuit training protection mechanism 1 includes a circuit simulator body 11, an incoming line box 12, a contact electric sheet 13, a three-phase resistance strain gauge 14 and a conductive connector 15, the outer side of the circuit simulator body 11 is fixedly connected to one end of the incoming line box 12, the contact electric sheet 13 is attached to one side of the conductive connector 15, the three-phase resistance strain gauge 14 is clamped on the inner side of the contact electric sheet 13, one side of the conductive connector 15 is fixedly connected to the surface of the incoming line box 12, a protection component 2 is also provided inside the incoming line box 12, slide rails 7 and dust baffles 8 are also provided on both sides of the circuit simulator body 11, the slide rails 7 are fixedly connected to the surface of the circuit simulator body 11, the dust baffles 8 are slidably connected to the inner side of the slide rails 7, and a plurality of groups of heat dissipation holes 9 arranged at equal intervals are also provided on both sides of the circuit simulator body 11.

[0029] In this embodiment: the circuit simulator body 11 of the device can provide functions such as a circuit component library and a signal generator to help users build and test their own circuit designs. Before use, the plug can be inserted into the incoming port of the incoming box 12, and the current flows into the conductive connector 15 and energizes the contact electric sheet 13. The three-phase resistance strain gauge 14 converts the change in strain into resistance change, thereby accurately measuring parameters. The user can select the required circuit components and drag and drop them into the circuit you want to build, and analyze the circuit performance by setting up a table to verify the effect; on the other hand, the device can block or expand the heat dissipation holes 9 of the circuit simulator body 11 through the flexible dust baffle 8 on the inner side of the push-pull slide rail 7, thereby preventing dust from entering the interior or enhancing the rapid heat dissipation of the simulator.

[0030] More specifically:

[0031] like Figure 2 , Figure 4 and Figure 5 As shown:

[0032] In an optional embodiment: the protection component 2 includes a heat-resistant plate 21, a leaf spring 22 and a rubber insulating pad 23, the heat-resistant plate 21 is fixedly connected to the inner side of the incoming line box 12, the leaf spring 22 is fixedly connected to the bottom of the heat-resistant plate 21, the rubber insulating pad 23 is adhesively connected to the bottom of the leaf spring 22, and the inner side of the conductive joint 15 is also provided with a high thermal conductivity graphite block 3, a silicone airbag 4 and a movable top block 5, the high thermal conductivity graphite block 3 is fixedly connected to the inside of the conductive joint 15, the silicone airbag 4 is fixedly connected to the top of the high thermal conductivity graphite block 3, the movable top block 5 is slidably connected to the inside of the conductive joint 15, and the inner side of the top of the conductive joint 15 is also provided with a landslide surface 6 with an inclined structure.

[0033] In the present embodiment: in case of an open circuit in the circuit, the high thermal conductivity graphite block 3 on the inner side of the thermal joint quickly absorbs heat, and the internal silicone airbag 4 expands rapidly after being heated, pushing the movable top block 5 upward. During this process, the movable top block 5 pushes the leaf spring 22 upward, and the leaf spring 22 at the lower end of the heat-resistant plate 21 is pushed outward along the slope 6, thereby replacing the conductive joint 15, and contacting the contact electric sheet 13 through the rubber insulating pad 23, thereby powering off the circuit simulator body 11 to prevent equipment damage caused by the open circuit.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A substation secondary current circuit auxiliary training device, comprising a circuit training protection mechanism (1), characterized in that: The circuit training protection mechanism (1) comprises a circuit simulator body (11), an incoming line box (12), a contact electric sheet (13), a three-phase resistance strain gauge (14) and a conductive joint (15); the outer side of the circuit simulator body (11) is fixedly connected to one end of the incoming line box (12); the contact electric sheet (13) is attached to one side of the conductive joint (15); the three-phase resistance strain gauge (14) is snap-fitted to the inner side of the contact electric sheet (13); one side of the conductive joint (15) is fixedly connected to the surface of the incoming line box (12); and a protection component (2) is also arranged inside the incoming line box (12).

2. The substation secondary current loop auxiliary training device according to claim 1 is characterized in that: The protection component (2) comprises a heat-resistant plate (21), a leaf spring (22) and a rubber insulating pad (23); the heat-resistant plate (21) is fixedly connected to the inner side of the incoming line box (12); the leaf spring (22) is fixedly connected to the bottom of the heat-resistant plate (21); and the rubber insulating pad (23) is adhesively connected to the bottom of the leaf spring (22).

3. The auxiliary training device for substation secondary current loop according to claim 1 is characterized in that: A high thermal conductivity graphite block (3), a silicone airbag (4) and a movable top block (5) are also provided on the inner side of the conductive joint (15); the high thermal conductivity graphite block (3) is fixedly connected to the inside of the conductive joint (15); the silicone airbag (4) is fixedly connected to the top of the high thermal conductivity graphite block (3); and the movable top block (5) is slidably connected to the inside of the conductive joint (15).

4. The substation secondary current loop auxiliary training device according to claim 1 is characterized in that: A slope surface (6) with an inclined structure is also provided on the inner side of the top of the conductive joint (15).

5. The auxiliary training device for substation secondary current loop according to claim 1 is characterized in that: Slide rails (7) and dust baffles (8) are also provided on both sides of the circuit simulator body (11); the slide rails (7) are fixedly connected to the surface of the circuit simulator body (11), and the dust baffles (8) are slidably connected to the inner side of the slide rails (7).

6. The substation secondary current loop auxiliary training device according to claim 5 is characterized in that: A plurality of groups of heat dissipation holes (9) arranged at equal intervals are also provided on both sides of the circuit simulator body (11).

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