CN209327405U - A relay protection secondary circuit maintenance terminal - Google Patents

Abstract

This application discloses a kind of relay protection secondary circuit maintenance terminals, including shell, secondary string holes, instrument connection and insulation contact pin；Buckle is equipped in secondary string holes.Compared to the uncertain mode manually to secondary line package insulating tape, by shell secondary line is wrapped up in the way of more accurate determination, tightness is stronger.By buckle secondary line is fixed, avoid secondary line from fall off in shell to around other secondary line or other positions overlap.And, it is inserted by insulation contact pin in the terminal block hole that corresponding secondary line is removed, play the role of mark, upon completion of the assays to secondary line restore insertion terminal round hole in will not malfunction, while avoid secondary line from fall off in shell to around other secondary line or other positions overlap.Therefore, the application, which can be avoided using relay protection secondary circuit maintenance with terminal, removes secondary line and mutually overlaps or remove secondary line and overlap other positions.

Description

A relay protection secondary circuit maintenance terminal

technical field

The present application relates to the technical field of electric power maintenance facilities, in particular to a terminal for relay protection secondary circuit maintenance.

Background technique

The secondary terminal is a connector for electrical connection, which facilitates the connection of wires. In the process of maintenance, testing or fault finding in substations and power plants, it is necessary to disconnect the secondary lines of the secondary equipment connected to the secondary terminals.

In the prior art, after the maintenance personnel disassemble the secondary wire from the secondary terminal, they wrap the disassembled secondary wire with insulating tape, and record the disassembled secondary wire by handwriting or taking pictures. When it is necessary to test, test, and troubleshoot the secondary line, remove the insulating tape on the secondary line, test it again, and wrap it after the test is completed. If the test process is repeated, the process of removing and wrapping the insulation on the corresponding secondary line is also repeated. Finally, after all the tests are completed, reconnect the secondary wire with the insulated wire removed to the secondary terminal.

However, the tightness of the insulating tape wrapping depends entirely on the degree of human meticulousness and the quality of the insulating tape, so it is easy to cause the poor wrapping or the quality of the insulating tape, or it may be caused by re-connecting the removed secondary line to the secondary terminal. The roughness problem caused the removal of the secondary wires to overlap each other or the removal of the secondary wires to overlap other parts. Therefore, the removal of the secondary wires to overlap each other or the removal of the secondary wires to overlap other parts will lead to the following situations: the positive and negative electricity of the trip circuit overlap each other, resulting in false trips; the overlapping of the signal loops causes false signals; Shell or remove the secondary line to cause grounding and live circuit series voltage.

Utility model content

The application provides to solve the problem of removing secondary wires overlapping each other or removing secondary wires overlapping other parts.

A relay protection secondary circuit maintenance terminal, the relay protection secondary circuit maintenance terminal includes a shell, a secondary wire hole, a test hole and an insulating pin;

The secondary line hole passes through to the center of the housing;

The test hole penetrates longitudinally to the center of the casing;

The secondary line hole communicates with the test hole;

Buckles are provided in the secondary wire hole;

The insulating pin is connected to the bottom of the shell;

The relay protection secondary circuit maintenance terminal is externally connected with a protective device terminal block;

The protection device terminal block includes a terminal block hole and a secondary line;

The secondary line is detachably connected in the hole of the terminal row;

The secondary wire is detachably connected in the secondary wire hole;

The insulating pins are detachably connected in the hole of the terminal row.

Further, the buckle includes an extension arm and a hook portion;

One end of the extension arm is connected to the inner wall of the secondary line hole;

The other end of the extension arm is connected to one end of the hook portion;

The other end of the hook is suspended.

Further, the relay protection secondary circuit maintenance terminal also includes an elastic member;

The elastic member is arranged on the side wall of the insulating pin.

Further, the relay protection secondary circuit maintenance terminal also includes a conductive plate;

The conductive plate is arranged in the center of the casing.

Further, the included angle between the conductive plate and the axis of the test hole is 45°.

Further, the angle between the cross section of the test hole and the upper surface of the housing is 45°.

Further, the relay protection secondary circuit maintenance terminal also includes a positioning plate;

The positioning plate is located below the secondary line hole and connected to the outer side wall of the housing.

Further, the secondary wire holes, the test holes, the insulating pins, the terminal row holes and the secondary wires are set in multiples;

The number of the secondary wire holes, the number of the test holes, the number of the insulating pins are the same and the same as the number of holes in the terminal row and the number of the secondary wires;

The spacing between the insulating pins is the same as the spacing between the plurality of terminal row holes.

Further, the shell is made of fully insulating material.

The beneficial effect of this application is:

It can be seen from the above technical solutions that the application provides a terminal for relay protection secondary circuit maintenance, including a housing, a secondary wire hole, a test hole and an insulating pin; the secondary wire hole penetrates horizontally to the center of the housing; the test hole Longitudinal penetration to the center of the shell; the secondary line hole is connected to the test hole; the secondary line hole is provided with a buckle; the insulating pin is connected to the bottom of the shell; the relay protection secondary circuit maintenance terminal is externally connected with a protective device Terminal block; the terminal block of the protection device includes a terminal block hole and a secondary line; the secondary line is detachably connected in the terminal block hole; the secondary line is detachably connected in the secondary line hole; the insulating pin is detachably connected to the inside the hole in the terminal block. Compared with the uncertain method of manually wrapping the secondary wire with insulating tape, the method of wrapping the secondary wire with the casing is more accurate and more rigorous. The secondary wires are fixed by buckles to prevent the secondary wires from falling out of the casing and overlapping with other surrounding secondary wires or other parts. In addition, the insulated pin is inserted into the hole of the terminal row corresponding to the removal of the secondary wire to play a marking role. After the inspection is completed, the secondary wire is inserted into the hole of the terminal row without error, and at the same time, the secondary wire is prevented from falling out of the shell. So as to overlap with other surrounding secondary lines or other parts. Therefore, the present application adopts the terminal for maintenance of the relay protection secondary circuit to avoid removal of secondary lines overlapping each other or removing secondary lines overlapping other parts.

Description of drawings

In order to illustrate the technical solution of the present application more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, for those of ordinary skill in the art, on the premise of not paying creative labor, Additional drawings can also be derived from these drawings.

FIG. 1 is a schematic structural diagram of a terminal for maintenance of a secondary circuit of relay protection in Embodiment 1 of the present application;

Figure 2 is a schematic structural diagram of the terminal block of the protection device of the present application;

Fig. 3 is a schematic structural diagram of a terminal for maintenance of a relay protection secondary circuit according to Embodiment 2 of the present application.

Among them, 1-housing, 2-secondary line hole, 3-test hole, 4-insulation pin, 5-clip, 51-extension arm, 52-hook, 6-conductive plate, 7-elastic piece, 8-Positioning board, 9-Terminal row hole, 10-Secondary line.

Detailed ways

Embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following examples do not represent all implementations consistent with this application.

Referring to FIG. 1 , it is a schematic structural diagram of a terminal for maintenance of a relay protection secondary circuit according to Embodiment 1 of the present application, and FIG. 2 is a schematic structural diagram of a terminal block of a protection device of the present application.

A relay protection secondary circuit maintenance terminal, the relay protection secondary circuit maintenance terminal includes a housing 1, a secondary line hole 2, a test hole 3 and an insulating pin 4;

The secondary wire hole 2 passes through to the center of the housing 1 in a transverse direction;

The test hole 3 penetrates longitudinally to the inner center of the housing 1;

The secondary line hole 2 communicates with the test hole 3;

The secondary line hole 2 is provided with a buckle 5;

The insulating pin 4 is connected to the bottom of the shell 1;

The relay protection secondary circuit maintenance terminal is externally connected with a protective device terminal block;

The protection device terminal block includes a terminal block hole 9 and a secondary line 10;

The secondary line 10 is detachably connected in the hole 9 of the terminal row;

The secondary wire 10 is detachably connected in the secondary wire hole 2;

The insulating pins 4 are detachably connected in the hole 9 of the terminal row.

Specifically, the relay protection secondary circuit maintenance terminal of this application is used in conjunction with the terminal block of the protection device. When the maintenance personnel need to perform maintenance, the secondary line 10 is removed from the hole 9 of the terminal block, and then the secondary line 10 is inserted into the hole 9 of the terminal block. In the secondary line hole 2 , the re-insulated pin 4 is inserted into the terminal row hole 9 corresponding to the removal of the secondary line 10 . Since the secondary line hole 2 is connected to the test hole 3, the external signal line or lead wire can be inserted into the test hole 3 during detection, so that the external signal line or lead line is in contact with the secondary line 10, and then the detection work can be completed. . When the detection work is repeated, it is only necessary to switch the external signal lines or wires in the test hole 3 without moving the secondary line 10 in the secondary line hole 2 . Moreover, a buckle 5 is provided in the secondary wire hole 2 so that the secondary wire 10 inserted into the secondary wire hole 2 is fixed reliably and is not easy to fall off. After all the maintenance work is completed, remove the secondary wire 10 from the secondary wire hole 2, remove the insulating pin 4 from the terminal row hole 9, and insert the secondary wire 10 into the terminal row hole 9 corresponding to the removal position of the insulating pin 4 Inside, so that the secondary wire 10 can be restored to its original position.

Compared with the uncertain method of manually wrapping the secondary wire 10 with insulating tape, the method of wrapping the secondary wire 10 with the casing 1 is more precise and more precise. The secondary wire 10 is fixed by the buckle 5 to prevent the secondary wire 10 from falling off from the housing 1 and overlapping with other surrounding secondary wires 10 or other parts. Moreover, the insulated pin 4 is inserted into the hole 9 of the terminal row corresponding to the removal of the secondary line 10 to play a marking role. After the detection is completed, the secondary line 10 is inserted into the hole 9 of the terminal row without error, and at the same time avoids secondary The wire 10 falls out of the housing 1 and overlaps with other surrounding secondary wires 10 or other parts. Therefore, this application adopts the relay protection secondary circuit maintenance terminal to avoid the removal of the secondary wires to overlap each other or remove the secondary wires to overlap other parts, thereby avoiding the following situations: the positive and negative electricity of the trip circuit overlap each other, Mistaken jumping; signal loops are overlapped with each other to cause false signals; lapping the equipment shell or removing the secondary line causes grounding and live circuit series voltage.

It can be known from the above technical solutions that this application provides a relay protection secondary circuit maintenance terminal, including a housing 1, a secondary wire hole 2, a test hole 3 and an insulating pin 4; the secondary wire hole 2 passes through the housing laterally 1. The inner center; the test hole 3 penetrates longitudinally to the inner center of the shell 1; the secondary line hole 2 is connected to the test hole 3; the secondary line hole 2 is provided with a buckle 5; the insulating pin 4 is connected to the bottom of the shell 1 ; The terminals for maintenance of the relay protection secondary circuit are externally connected with a protection device terminal block; the protection device terminal block includes a terminal block hole 9 and a secondary line 10; the secondary line 10 is detachably connected in the terminal block hole 9; the secondary line 10 It is detachably connected in the secondary wire hole 2; the insulating pin 4 is detachably connected in the hole 9 of the terminal row. Compared with the uncertain method of manually wrapping the secondary wire 10 with insulating tape, the method of wrapping the secondary wire 10 with the casing 1 is more precise and more precise. The secondary wire 10 is fixed by the buckle 5 to prevent the secondary wire 10 from falling off from the housing 1 and overlapping with other surrounding secondary wires 10 or other parts. Moreover, the insulated pin 4 is inserted into the hole 9 of the terminal row corresponding to the removal of the secondary line 10 to play a marking role. After the detection is completed, the secondary line 10 is inserted into the hole 9 of the terminal row without error, and at the same time avoids secondary The wire 10 falls out of the housing 1 and overlaps with other surrounding secondary wires 10 or other parts. Therefore, the present application adopts the terminal for maintenance of the relay protection secondary circuit to avoid removal of secondary lines overlapping each other or removing secondary lines overlapping other parts.

Further, the buckle 5 includes an extension arm 51 and a hook portion 52;

One end of the extension arm 51 is connected to the inner wall of the secondary line hole 2;

The other end of the extension arm 51 is connected to one end of the hook portion 52;

The other end of the hook portion 52 is suspended.

Specifically, the length of the extension arm 51 can be determined according to the diameter specification of the secondary wire 10 , and the hook portion 52 is used to hook the secondary wire 10 so that the secondary wire 10 is placed in the secondary wire hole 2 more stably.

Further, the relay protection secondary circuit maintenance terminal also includes an elastic member 7;

The elastic member 7 is disposed on the sidewall of the insulating pin 4 .

Specifically, an elastic member 7 is provided on the side wall of the insulating pin 4, so that the insulating pin 4 is placed in the hole 9 of the terminal row more stably, and prevents the secondary circuit maintenance terminal from shaking due to shaking of the relay protection secondary circuit during the maintenance process. The hole 9 of the terminal row falls off, and the insulating pin 4 loses the function of marking the position where the secondary line is removed.

Further, the relay protection secondary circuit maintenance terminal also includes a conductive plate 6;

The conductive plate 6 is arranged in the center of the housing 1 .

Specifically, the conductive plate 6 is located at the junction of the secondary wire hole 2 and the test hole 3, so that the secondary wire 10 inserted in the secondary wire hole 2 and the external signal wire or wire inserted into the test hole 3 do not need to be in point contact. Directly lapped to the conductive plate 6 to realize the lap between the two, thereby improving the lapping efficiency and further improving the maintenance efficiency.

Further, the included angle between the conductive plate 6 and the axis of the test hole 3 is 45°.

Specifically, the angle between the axis of the conductive plate 6 and the test hole 3 is set to 45°, so that the contact efficiency between the secondary wire hole 2 and the test hole 3 and the conductive plate 6 is the same.

Further, the angle between the cross section of the test hole 3 and the upper surface of the housing 1 is 45°.

Specifically, the angle between the cross-section of the test hole 3 and the upper surface of the housing 1 is set at 45°, so that the external signal line or wire can be easily inserted into the test hole 3, and the junction of the secondary line hole 2 and the test hole 3 can be observed The overlapping situation.

Further, the relay protection secondary circuit maintenance terminal also includes a positioning plate 8;

The positioning plate 8 is located below the secondary line hole 2 and connected to the outer wall of the casing 1 .

Specifically, a positioning plate 8 is provided on the outer side wall of the housing 1 and below the secondary wire hole 2 to position the secondary wire 10, support the secondary wire 10, and facilitate disassembly and insertion operations.

Referring to FIG. 3 , it is a schematic structural diagram of a terminal for maintenance of a relay protection secondary circuit according to Embodiment 2 of the present application.

Further, the secondary wire holes 2, the test holes 3, the insulating pins 4, the terminal row holes 9 and the secondary wires 10 are set in multiples;

The number of the secondary wire holes 2, the number of the test holes 3, the number of the insulating pins 4 are the same and the same as the number of the terminal row holes 9 and the secondary wires 10;

The spacing between the insulating pins 4 is the same as the spacing between the plurality of terminal row holes 9 .

Specifically, the secondary wire holes 2, the test holes 3, the insulating pins 4, the terminal row holes 9 and the secondary wires 10 are arranged in a whole row, so that multiple A secondary wire 10 is inserted and removed.

Further, the housing 1 is made of fully insulating material.

Specifically, the inside and outside of the casing 1 are made of fully insulating materials, which can effectively isolate and prevent the secondary line 10 from overlapping the secondary equipment casing or the secondary line 10 causing grounding and live circuit series voltage.

It can be known from the above technical solutions that this application provides a relay protection secondary circuit maintenance terminal, including a housing 1, a secondary wire hole 2, a test hole 3 and an insulating pin 4; the secondary wire hole 2 passes through the housing laterally 1. The inner center; the test hole 3 penetrates longitudinally to the inner center of the shell 1; the secondary line hole 2 is connected to the test hole 3; the secondary line hole 2 is provided with a buckle 5; the insulating pin 4 is connected to the bottom of the shell 1 ; The terminals for maintenance of the relay protection secondary circuit are externally connected with a protection device terminal block; the protection device terminal block includes a terminal block hole 9 and a secondary line 10; the secondary line 10 is detachably connected in the terminal block hole 9; the secondary line 10 It is detachably connected in the secondary wire hole 2; the insulating pin 4 is detachably connected in the hole 9 of the terminal row. Compared with the uncertain method of manually wrapping the secondary wire 10 with insulating tape, the method of wrapping the secondary wire 10 with the casing 1 is more precise and more precise. The secondary wire 10 is fixed by the buckle 5 to prevent the secondary wire 10 from falling off from the housing 1 and overlapping with other surrounding secondary wires 10 or other parts. Moreover, the insulated pin 4 is inserted into the hole 9 of the terminal row corresponding to the removal of the secondary line 10 to play a marking role. After the detection is completed, the secondary line 10 is inserted into the hole 9 of the terminal row without error, and at the same time avoids secondary The wire 10 falls out of the housing 1 and overlaps with other surrounding secondary wires 10 or other parts. Therefore, the present application adopts the terminal for maintenance of the relay protection secondary circuit to avoid removal of secondary lines overlapping each other or removing secondary lines overlapping other parts.

The similar parts between the embodiments provided in the present application can be referred to each other, and the specific implementation manners provided above are only a few examples under the general concept of the present application, and do not constitute a limitation of the protection scope of the present application. For those skilled in the art, any other implementations expanded based on the solutions of the present application without creative work shall fall within the scope of protection of the present application.

Claims (9)

1. a kind of relay protection secondary circuit maintenance terminal, which is characterized in that end is used in the relay protection secondary circuit maintenance Attached bag includes shell (1), secondary string holes (2), instrument connection (3) and insulation contact pin (4)；

The secondary string holes (2) is laterally worn to the shell (1) center of inside；

The instrument connection (3) is longitudinally worn to the shell (1) center of inside；

The secondary string holes (2) is connected with the instrument connection (3)；

Buckle (5) is equipped in the secondary string holes (2)；

Insulation contact pin (4) is connected with the bottom of the shell (1)；

The relay protection secondary circuit maintenance is circumscribed with protective device terminal block with terminal；

The protective device terminal block includes terminal block hole (9) and secondary line (10)；

The secondary line (10) is removably connected in the terminal block hole (9)；

The secondary line (10) is removably connected in the secondary string holes (2)；

The insulation contact pin (4) is removably connected in the terminal block hole (9).

2. relay protection secondary circuit maintenance terminal according to claim 1, which is characterized in that buckle (5) packet Include extension arm (51) and crook (52)；

One end of the extension arm (51) is connected with the inner wall of the secondary string holes (2)；

The other end of the extension arm (51) is connected with one end of the crook (52)；

The other end of the crook (52) is hanging.

3. relay protection secondary circuit maintenance terminal according to claim 1, which is characterized in that the relay protection two Minor loop maintenance terminal further includes elastic component (7)；

The elastic component (7) is set on the side wall of insulation contact pin (4).

4. relay protection secondary circuit maintenance terminal according to claim 1, which is characterized in that the relay protection two Minor loop maintenance terminal further includes conductive plate (6)；

The conductive plate (6) is arranged in the shell (1) center of inside.

5. relay protection secondary circuit maintenance terminal according to claim 4, which is characterized in that the conductive plate (6) Axis angle with the instrument connection (3) is 45 °.

6. relay protection secondary circuit maintenance terminal according to claim 1, which is characterized in that the instrument connection (3) Cross section and the angle of the shell (1) upper surface be 45 °.

7. relay protection secondary circuit maintenance terminal according to claim 1, which is characterized in that the relay protection two Minor loop maintenance terminal further includes positioning plate (8)；

The positioning plate (8) is located at below the secondary string holes (2) and the lateral wall of the shell (1) is connected.

8. relay protection secondary circuit maintenance terminal according to claim 1, which is characterized in that the secondary string holes (2), the instrument connection (3), the insulation contact pin (4), the terminal block hole (9) and the secondary line (10) are set as more It is a；

The quantity of the secondary string holes (2), the quantity of the instrument connection (3), the quantity of insulation contact pin (4) it is identical and with institute The quantity for stating terminal block hole (9) and the secondary line (10) is identical；

Spacing between insulation contact pin (4) is identical as the spacing between the multiple terminal block hole (9).

9. relay protection secondary circuit maintenance terminal according to claim 1, which is characterized in that the shell (1) is adopted It is made of all insulation material.