Test instrument and test system for relay protection

Abstract

The utility model discloses a testing instrument and a testing system for relay protection, relates to the field of relay protection testing, improves the situation that the tester can only be placed at a fixed angle and the practicability of the device is reduced due to the fact that the tester cannot be randomly fixed at a position within any rotation range after rotation, and meanwhile, the testing device is moved by grabbing a handle, so that the testing efficiency is improved. A plurality of components are matched with one another, so that the protection performance and portability of the device can be improved. The device comprises test equipment for relay protection; the movable blocks are positioned on two sides of the test equipment and are used for driving the baffle plate to move; the side plates are positioned on the upper side and the lower side of the baffle. According to the testing device, strong resistance is generated between the movable block and the connecting block through the damping ring and the embedding block, so that the inclined testing device is placed at the current angle, the placement angle of the testing device can be changed, the placement angle of the testing device can be quickly and randomly changed, and the practicability of the testing device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of relay protection testing, in particular to a testing instrument and a testing system for relay protection. Background Art

[0002] A relay protection tester is a device specifically designed to test various relay protection devices in power systems. Its primary function is to ensure the correctness and reliability of relay protection devices, thereby ensuring the safe operation of the power system. A relay protection tester can simulate various fault conditions in the power system to test the operating performance and accuracy of relay protection devices.

[0003] 1. Existing testers are all equipped with a rotatable handle on the outside. However, since the handle is not provided with damping, it can only maintain the maximum rotation angle and be placed against the surface of the tester. After rotation, it cannot be arbitrarily fixed in any position within the rotation range. Therefore, the tester can only be placed at a fixed angle, which reduces the practicality of the device.

[0004] 2. The handles on the outside of the existing tester can only serve as support and lifting. When the tester is not in use, dust easily accumulates on the interface outside the device, causing the interface to be unable to be used normally, thereby reducing the protection of the device. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the above problems existing in the prior art, the utility model provides a test instrument and a test system for relay protection.

[0007] (2) Technical solution

[0008] The control panel is arranged on the upper and lower sides of the control panel, and the control panel is arranged on the upper and lower sides of the control panel to be connected with the test piece respectively.

[0009] Preferably, an engaging groove is formed on a side of the connecting block close to the movable block, and the engaging block is movably engaged in the engaging groove.

[0010] Preferably, a side of the movable block close to the connecting block is bolted to the damping ring, a side of the connecting block close to the damping ring is provided with a groove, and the damping ring is movably engaged in the groove.

[0011] Preferably, a movable groove is formed on a side of the testing device close to the movable block, the connecting block is located in the movable groove, and both ends of the fixing rod are welded to both sides of the movable groove.

[0012] Preferably, a protective sheet is adhered to one side of the connecting block, the other end of the protective sheet is adhered to the inside of the movable groove, and one end of the elastic member away from the connecting block is bolted to the movable groove.

[0013] Preferably, one end of the elastic member close to the connecting block is bolted to a limit block, and limit slots are provided on upper and lower sides of the movable slot, and upper and lower ends of the limit block are movably embedded in the limit slots.

[0014] Preferably, a metal block is bolted to one side of the side plate close to the test device, a fixing groove is provided on the test device, a magnetic block is bolted in the fixing groove, and the metal block is movably embedded in the fixing groove.

[0015] Another aspect of the present invention provides a test system for relay protection, including a plug-in sensor module, an overcurrent module, a current monitoring module, an analysis module and a display module. The plug-in sensor module is located in the interface, the plug-in sensor module is connected to the overcurrent module, the current monitoring module is connected to the analysis module, the overcurrent module is simultaneously connected to the current display module and the display module, and the display module is equipped with at least two power-in signal lights.

[0016] (3) Beneficial effects

[0017] The utility model provides a test instrument and test system for relay protection, which has the following beneficial effects:

[0018] 1. Pull and rotate the baffle downward so that the connecting rod rotates along the center of the engaging groove through the engaging block on the movable block. When the baffle and the side panel are rotated to the appropriate position at the bottom of the test equipment, tilt the test equipment, place the baffle and the side panel horizontally on the table, and then release the baffle. At this time, the elastic member rebounds through its own elasticity, so that the surface of the tilted test equipment is tightly attached to the top of the baffle or the side panel. Since the damping ring and the engaging block will generate strong resistance between the movable block and the connecting block, the tilted test equipment will maintain the current angle, so that the placement angle of the test equipment can be changed quickly and arbitrarily, thereby improving the practicality of the device.

[0019] 2. When the test equipment is not in use, rotate the baffle back to the interface, loosen the baffle, and let the elastic part rebound to drive the metal block into the fixed groove and magnetically adsorbed with the magnetic block. At this time, the interface can be protected. When the test equipment needs to be moved, pull the side panel to move the metal block away from the fixed groove, and then rotate the two side panels in the direction away from the test equipment so that the sides of the two side panels with handles touch each other. You can grab the handle to move the test equipment. The cooperation of multiple components can improve the protection and portability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic structural diagram of the utility model as a whole;

[0022] Figure 2 It is a schematic diagram of the components of the utility model;

[0023] Figure 3 This is a structural diagram of the baffle of the utility model;

[0024] Figure 4 This is a structural diagram of the connection block of the utility model;

[0025] Figure 5 It is a test flow chart of the utility model.

[0026] In the figure, 1. test equipment; 2. movable block; 3. connecting block; 4. fitting block; 5. fitting groove; 6. damping ring; 7. protective sheet; 8. fixing rod; 9. limit block; 10. elastic member; 11. movable groove; 12. limit groove; 13. connecting rod; 14. baffle; 15. side panel; 16. rotating groove; 17. cross bar; 18. handle; 19. rotating block; 20. metal block; 21. magnetic block; 22. fixing groove; 23. interface. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0028] Example 1

[0029] Reference Figure 1-5, which is the first embodiment of the present utility model, and provides a test instrument for relay protection, including a test device 1 for relay protection; movable blocks 2 located on both sides of the test device 1, the movable blocks 2 are used to drive the baffle 14 to move; side plates 15 located on the upper and lower sides of the baffle 14, the side plates 15 are used to protect the test device 1; the movable block 2 is bolted to the embedded block 4 on one side close to the test device 1, and the embedded block 4 is movably embedded in the inside of the connecting block 3, and a fixing rod 8 is movably passed through the connecting block 3, and an elastic member 10 is surrounded by the outside of the fixing rod 8, and a connecting rod 13 is welded on the side of the movable block 2 away from the embedded block 4, and the end of the connecting rod 13 away from the movable block 2 is bolted to the baffle 14, and a rotating block 19 is welded on the upper and lower sides of the baffle 14, and a cross bar 17 is welded on both sides of the rotating block 19, and a rotating groove 16 is opened on the side of the side plate 15 close to the baffle 14, and the rotating block 19 and the cross bar 17 are both movably embedded in the rotating groove 16, and a handle 18 is welded on the side of the side plate 15 away from the baffle 14.

[0030] Specifically, pull and rotate the baffle 14 downward so that the connecting rod 13 rotates along the center of the engaging groove 5 through the engaging block 4 on the movable block 2. When the baffle 14 and the side panel 15 are rotated to the appropriate position at the bottom of the test device 1, tilt the test device 1, place the baffle 14 and the side panel 15 horizontally on the table, and then release the baffle 14. At this time, the elastic member 10 rebounds through its own elasticity, so that the surface of the tilted test device 1 is tightly attached to the top of the baffle 14 or the side panel 15. Since the damping ring 6 and the engaging block 4 will generate strong resistance between the movable block 2 and the connecting block 3, the tilted test device 1 will maintain the current angle, and the placement angle of the test device 1 can be changed. The placement angle of the test device 1 can be changed quickly and arbitrarily, thereby improving the practicality of the device.

[0031] Reference Figure 2 and Figure 4 , a fitting groove 5 is opened on the side of the connecting block 3 close to the movable block 2, and the fitting block 4 is movably fitted in the fitting groove 5. The side of the movable block 2 close to the connecting block 3 is bolted to the damping ring 6, and the connecting block 3 has a groove on the side close to the damping ring 6, and the damping ring 6 is movably fitted in the groove. A movable groove 11 is opened on the side of the testing equipment 1 close to the movable block 2, the connecting block 3 is located in the movable groove 11, and the two ends of the fixing rod 8 are welded on both sides of the movable groove 11, a protective sheet 7 is adhered to one side of the connecting block 3, and the other end of the protective sheet 7 is adhered to the inside of the movable groove 11, the end of the elastic member 10 away from the connecting block 3 is bolted to the movable groove 11, and the end of the elastic member 10 close to the connecting block 3 is bolted to the limit block 9, and the movable groove 11 has limiting grooves 12 on the upper and lower sides, and the upper and lower ends of the limit block 9 are movably fitted in the limiting groove 12.

[0032] Specifically, the engaging block 4 and the damping ring 6 are made of rubber, which can increase the friction between the movable block 2 and the connecting block 3, so that the movable block 2 can be maintained at the current angle after rotation. The protective sheet 7 is made of soft rubber material, which can reduce the external impurities entering the movable groove 11. The limit block 9 and the limit groove 12 are movably engaged to prevent the connecting block 3 from slipping out of the movable groove 11.

[0033] Reference Figure 3 A metal block 20 is bolted to one side of the side plate 15 close to the test device 1 . A fixing groove 22 is opened on the test device 1 . A magnetic block 21 is bolted to the fixing groove 22 . The metal block 20 is movably embedded in the fixing groove 22 .

[0034] Specifically, the metal block 20 is made of iron, and the magnetic block 21 is a magnet. When the metal block 20 is embedded in the fixing groove 22 , it will be adsorbed and connected to the magnetic block 21 , thereby fixing the side plate 15 on the testing device 1 .

[0035] Example 2

[0036] Another aspect of the present invention provides a test system for relay protection, including a plug-in sensor module, an overcurrent module, a current monitoring module, an analysis module and a display module. The plug-in sensor module is located in the interface, the plug-in sensor module is connected to the overcurrent module, the current monitoring module is connected to the analysis module, the overcurrent module is simultaneously connected to the current display module and the display module, and the display module is equipped with at least two power-in signal lights.

[0037] Working principle: Pull the baffle 14 away from the test equipment 1 so that the baffle 14 pulls the connecting block 3 in the movable groove 11 through the connecting rod 13 connected to the movable block 2, and the connecting block 3 squeezes the elastic member 10 in the movable groove 11 through the limit block 9. At this time, the baffle 14 and the side panel 15 are not in contact with the test equipment 1, and the baffle 14 is rotated downward so that the connecting rod 13 rotates along the center of the fitting groove 5 through the fitting block 4 on the movable block 2. When the baffle 14 and the side panel 15 are rotated to the appropriate position at the bottom of the test equipment 1, the test equipment 1 is tilted, and the baffle 14 and the side panel 15 are placed horizontally on the desktop, and then the baffle 14 is released. At this time, the elastic member 10 rebounds through its own elasticity, so that the surface of the tilted test equipment 1 is tightly attached to the top of the baffle 14 or the side panel 15. Since the damping ring 6 and the fitting block 4 are made of rubber, a strong resistance will be generated between the movable block 2 and the connecting block 3, causing the tilt The tilted test device 1 will maintain its current placement angle, so the placement angle of the test device 1 can be changed. The test connector can be plugged into the interface 23, and the test device 1 can be turned on so that the interface 23 transmits the electrical signal of the test connector to the test device 1, and the relay protection test can be performed. When the test device 1 is not in use, the baffle 14 is rotated back to the interface 23, and the metal block 20 on the side panel 15 is on the same horizontal line as the fixing groove 22. The baffle 14 is released to allow the elastic member 10 to rebound and drive the metal block 20 to embed into the fixing groove 22 and be magnetically adsorbed with the magnetic block 21 in the fixing groove 22. At this time, the interface 23 can be protected. When the test device 1 needs to be moved, the side panel 15 is pulled to move the metal block 20 away from the fixing groove 22, and then the two side panels 15 are rotated in the direction away from the test device 1 so that the sides of the two side panels 15 with the handle 18 are in contact with each other, and the handle 18 can be grabbed to move the test device.

[0038] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A test instrument for relay protection, characterized in that: include: Test equipment for relay protection; Movable blocks located on both sides of the testing device, the movable blocks are used to drive the baffle to move; Side panels located on the upper and lower sides of the baffle, the side panels being used to protect the test equipment; The movable block is bolted to the embedding block on one side close to the test equipment, and the embedding block is movably embedded in the connecting block. A fixing rod is movably passed through the connecting block, and an elastic part is surrounded by the outside of the fixing rod. A connecting rod is welded to the side of the movable block away from the embedding block, and an end of the connecting rod away from the movable block is bolted to the baffle. Rotating blocks are welded on the upper and lower sides of the baffle, and cross bars are welded on both sides of the rotating block. A rotating groove is opened on the side of the side plate close to the baffle, and the rotating block and the cross bar are movably embedded in the rotating groove. A handle is welded to the side of the side plate away from the baffle.

2. A test instrument for relay protection according to claim 1, characterized in that: A fitting groove is provided on one side of the connecting block close to the movable block, and the fitting block is movably fitted in the fitting groove.

3. The test instrument for relay protection according to claim 1, characterized in that: The side of the movable block close to the connecting block is connected to the damping ring by bolts. The side of the connecting block close to the damping ring is provided with a groove, and the damping ring is movably embedded in the groove.

4. A test instrument for relay protection according to claim 1, characterized in that: A movable groove is formed on one side of the testing device close to the movable block. The connecting block is located in the movable groove, and two ends of the fixing rod are welded to both sides of the movable groove.

5. A test instrument for relay protection according to claim 4, characterized in that: A protective sheet is adhered to one side of the connecting block, and the other end of the protective sheet is adhered to the inside of the movable groove. One end of the elastic member away from the connecting block is bolted to the movable groove.

6. A test instrument for relay protection according to claim 4, characterized in that: One end of the elastic member close to the connecting block is bolted to the limiting block, and limiting grooves are provided on the upper and lower sides of the movable groove. The upper and lower ends of the limiting block are movably embedded in the limiting grooves.

7. A test instrument for relay protection according to claim 1, characterized in that: A metal block is bolted to one side of the side plate close to the test device. A fixing groove is provided on the test device. A magnetic block is bolted in the fixing groove. The metal block is movably embedded in the fixing groove.

8. A test system for the test instrument of the relay protection according to any one of claims 1 to 7, characterized in that: It includes a plug-in sensing module, an overcurrent module, a current monitoring module, an analysis module and a display module. The plug-in sensing module is located in the interface, the plug-in sensing module is connected to the overcurrent module, the current monitoring module is connected to the analysis module, the overcurrent module is connected to the current display module and the display module at the same time, and the display module is equipped with at least two power-in signal lights.

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