CN217717867U - Operation platform for automatic testing of relay protection - Google Patents
Operation platform for automatic testing of relay protection Download PDFInfo
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- CN217717867U CN217717867U CN202221747328.6U CN202221747328U CN217717867U CN 217717867 U CN217717867 U CN 217717867U CN 202221747328 U CN202221747328 U CN 202221747328U CN 217717867 U CN217717867 U CN 217717867U
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Abstract
The utility model discloses an operation platform is used in automatic test of relay protection, which comprises a flat plate, the mounting hole has been seted up at dull and stereotyped top, dull and stereotyped bottom is run through and is provided with supporting mechanism, dull and stereotyped top is inlayed and is installed solid fixed ring, gu fixed ring's surface runs through and is provided with measuring mechanism, the wiring mechanism is installed to measuring mechanism's bottom, the surface centre gripping of wiring mechanism has the wire. The utility model discloses possess and need not work a telephone switchboard, carry out the separated time to the wire, the wire is connected firmly, the advantage that is difficult for droing, it needs frequent to be connected with the wire and detects to have solved current relay protection automatic test and uses operation platform test end, very big trouble has been brought for the staff, detection efficiency is low, can not adjust the bearing height of sense terminal, be not convenient for dismantle the test end, be not convenient for carry out the centre gripping to the wire fixed, the wire drops easily after receiving outside pulling force, the problem that people used not convenient for.
Description
Technical Field
The utility model relates to a relay protection test platform technical field specifically is an operation platform is used in relay protection automatic test.
Background
The relay protection test system can finish most test verification works on site, can verify various relays (such as current, voltage, inverse time limit, power direction, impedance, differential, low cycle, synchronization, frequency, direct current, intermediate, time and the like) and microcomputer protection, and can simulate instantaneous, permanent and conversion faults of single phase to three phase to perform a whole set of tests.
Need use relay protection automatic test to use operation platform in detecting the experimentation to the relay, current relay protection automatic test is with operation platform test end needs frequent being connected with the wire and detects, brought very big trouble for the staff, detection efficiency is low, can not adjust the support height of sense terminal, be not convenient for dismantle the test end, be not convenient for carry out the centre gripping to the wire and fix, the wire drops easily after receiving outside pulling force, the people's of not being convenient for use.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an operation platform is used in relay protection automatic test, it need not work a telephone switchboard, carry out the separated time to the wire, the wire is connected firmly, the advantage that is difficult for droing, it needs frequent to be connected with the wire and detects to have solved current operation platform for relay protection automatic test detection end, very big trouble has been brought for the staff, detection efficiency is low, can not adjust the support height of sense terminal, be not convenient for dismantle the sense terminal, it is fixed not convenient for carry out the centre gripping to the wire, the wire drops easily after receiving outside pulling force, the problem that people used not convenient for.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an operation platform is used in automatic test of relay protection, includes the flat board, the mounting hole has been seted up at dull and stereotyped top, dull and stereotyped bottom is run through and is provided with supporting mechanism, solid fixed ring is installed at dull and stereotyped top is inlayed, gu fixed ring's surface runs through and is provided with measuring mechanism, wiring mechanism is installed to measuring mechanism's bottom, wiring mechanism's surperficial centre gripping has the wire, the surface of wire is provided with branch line mechanism.
Preferably, the supporting mechanism includes first threaded rod, the top of first threaded rod runs through to the top of mounting hole, the surperficial screw thread cover of first threaded rod is equipped with first nut, the bottom welding of first threaded rod has first backing plate, the bottom welding of first backing plate has the montant, the bottom cover of montant is equipped with the sleeve pipe, the sheathed tube surface runs through and is provided with the fastening bolt.
Preferably, one end of the fastening bolt penetrates through the inner cavity of the sleeve and is in contact with the vertical rod, and the surface of the fastening bolt is in threaded connection with the inner wall of the sleeve.
Preferably, the surface of the first threaded rod is in threaded connection with a first nut, the bottom of the first nut is in contact with the top of the flat plate, and the top of the first backing plate is in contact with the bottom of the flat plate.
Preferably, measuring mechanism includes the measuring staff, the bottom of measuring staff runs through to solid fixed ring's bottom, the top on measuring staff surface and the equal thread bush in bottom are equipped with the second nut, one side that the second nut is relative and solid fixed ring's surface contact, the fixed surface cover of second nut is equipped with the second backing plate, one side and the dull and stereotyped contact of second backing plate.
Preferably, wiring mechanism includes the second threaded rod, the top of second threaded rod run through measuring mechanism and with measuring mechanism threaded connection, the bottom welding of second threaded rod has the connection terminal, the bottom of connection terminal is run through and is provided with the third threaded rod, the inner chamber to the connection terminal is run through at the top of third threaded rod, the top swing joint of third threaded rod has splint.
Preferably, the inner wall of the wire holder is in threaded connection with the surface of the third threaded rod, the surface of the clamping plate is in movable contact with the inner wall of the wire holder, and a knob is welded at the bottom of the third threaded rod.
Preferably, the wire dividing mechanism comprises a wire dividing frame, a wire dividing groove is formed in the bottom of the wire dividing frame, and protrusions are integrally formed on two sides of the inner wall of the wire dividing groove.
Preferably, the number of the wire distributing grooves is a plurality, the wire distributing grooves are arranged at equal intervals in the transverse direction, and one end of each wire penetrates through the wire distributing grooves.
Preferably, the quantity of mounting hole is a plurality of, the shape of mounting hole is long waist shape, solid fixed ring's quantity is a plurality of, the equidistance is arranged between the solid fixed ring.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model discloses a it is dull and stereotyped, the mounting hole, supporting mechanism, gu fixed ring, measuring mechanism, wiring mechanism, wire and deconcentrator mechanism cooperate, possess and need not work a telephone switchboard, carry out the separated time to the wire, the wire is connected firmly, the advantage that is difficult for droing, it needs frequent to be connected with the wire and detects to have solved current relay protection automatic test with operation platform test end, very big trouble has been brought for the staff, detection efficiency is low, can not adjust the bearing height of sense terminal, be not convenient for dismantle the test end, be not convenient for carry out the centre gripping to the wire fixed, the wire drops easily behind the outside pulling force, the problem that people of being not convenient for used.
2. The utility model discloses a set up the mounting hole, make things convenient for dull and stereotyped and supporting mechanism to be connected, thereby support the flat board, through setting up supporting mechanism, can support the flat board, through setting up first threaded rod and first nut, can fix montant and first backing plate, through setting up first backing plate, area of contact between montant and the flat board has been increased, can be to the better support of flat board, through setting up the gim peg, can fix the sleeve pipe, adjustable montant is located the degree of depth of sleeve pipe inner chamber, thereby adjust the support height of flat board, the staff of being convenient for carries out experimental operation.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an enlarged view of a portion of the structure A in FIG. 1 according to the present invention;
FIG. 3 is a schematic bottom view of the three-dimensional structure of the present invention;
FIG. 4 is a schematic view of a partial three-dimensional structure of the present invention;
fig. 5 is a schematic view of the three-dimensional structure of the flat plate and the fixing ring of the present invention.
In the figure: the device comprises a flat plate 1, a mounting hole 2, a supporting mechanism 3, a fixing ring 4, a measuring mechanism 5, a wiring mechanism 6, a lead 7, a wiring mechanism 8, a first threaded rod 9, a first nut 10, a first backing plate 11, a vertical rod 12, a sleeve 13, a fastening bolt 14, a detection rod 15, a second nut 16, a second backing plate 17, a second threaded rod 18, a wiring seat 19, a third threaded rod 20, a clamping plate 21, a knob 22, a wiring frame 23, a wiring dividing groove 24 and a projection 25.
Detailed Description
Please refer to FIGS. 1-5
Example one
The utility model provides an operation platform is used in relay protection automatic testing, including dull and stereotyped 1, mounting hole 2 has been seted up at dull and stereotyped 1's top, the bottom of dull and stereotyped 1 is run through and is provided with supporting mechanism 3, solid fixed ring 4 is installed at dull and stereotyped 1's top inlay, solid fixed ring 4's surface is run through and is provided with measuring mechanism 5, measuring mechanism 6 is installed to measuring mechanism 5's bottom, the surface clamp of connecting mechanism 6 has wire 7, the surface of wire 7 is provided with wire separating mechanism 8, through setting up mounting hole 2, make things convenient for dull and stereotyped 1 to be connected with supporting mechanism 3, thereby support dull and stereotyped 1.
Supporting mechanism 3 includes first threaded rod 9, the top of first threaded rod 9 runs through to the top of mounting hole 2, the surperficial threaded bush of first threaded rod 9 is equipped with first nut 10, the bottom welding of first threaded rod 9 has first backing plate 11, the bottom welding of first backing plate 11 has montant 12, the bottom cover of montant 12 is equipped with sleeve pipe 13, sleeve pipe 13's surface runs through and is provided with fastening bolt 14, through setting up supporting mechanism 3, can support dull and stereotyped 1, through setting up first threaded rod 9 and first nut 10, can fix montant 12 and first backing plate 11, through setting up first backing plate 11, area of contact between montant 12 and dull and stereotyped 1 has been increased, can be to dull and stereotyped 1 better support.
The one end of fastening bolt 14 runs through to the inner chamber of sleeve pipe 13 and contacts with montant 12, and the surface of fastening bolt 14 and the inner wall threaded connection of sleeve pipe 13 through setting up fastening bolt 14, can fix sleeve pipe 13, and adjustable montant 12 is located the degree of depth of sleeve pipe 13 inner chamber to adjust dull and stereotyped 1's bearing height, the staff of being convenient for tests the operation.
The surface of the first threaded rod 9 is in threaded connection with a first nut 10, the bottom of the first nut 10 being in contact with the top of the plate 1 and the top of the first shim plate 11 being in contact with the bottom of the plate 1.
The wiring mechanism 6 comprises a second threaded rod 18, the top of the second threaded rod 18 penetrates through the measuring mechanism 5 and is in threaded connection with the measuring mechanism 5, a wiring seat 19 is welded at the bottom of the second threaded rod 18, a third threaded rod 20 is arranged at the bottom of the wiring seat 19 in a penetrating mode, the top of the third threaded rod 20 penetrates through an inner cavity of the wiring seat 19, and a clamping plate 21 is movably connected to the top of the third threaded rod 20.
The inner wall of connection terminal 19 and the surperficial threaded connection of third threaded rod 20, splint 21 surface and the inner wall movable contact of connection terminal 19, the bottom welding of third threaded rod 20 has knob 22, through setting up connection terminal 19, conveniently be connected with wire 7, through setting up third threaded rod 20, can drive splint 21 vertical movement, can press from both sides tightly wire 7, avoid wire 7 to break away from with connection terminal 19 behind the external pulling force, through setting up knob 22, the area of contact of third threaded rod 20 with the finger has been increased, the rotation of the third threaded rod 20 of being convenient for, through second threaded rod 18 and 15 threaded connection of measuring staff, be convenient for connect fixed to binding mechanism 6, the dismantlement of the binding mechanism 6 of being convenient for simultaneously.
The wire distributing mechanism 8 comprises a wire distributing frame 23, a wire distributing groove 24 is formed in the bottom of the wire distributing frame 23, and protrusions 25 are integrally formed on two sides of the inner wall of the wire distributing groove 24.
The number of the wire distributing grooves 24 is a plurality, the wire distributing grooves 24 are arranged at equal intervals in the transverse direction, one ends of the wires 7 penetrate through the wire distributing grooves 24, the wires 7 can be distributed and sorted by arranging the wire distributing frames 23, the designated wires 7 can be found conveniently, and the wires 7 can be limited in the inner cavities of the wire distributing grooves 24 by arranging the protrusions 25.
The quantity of mounting hole 2 is a plurality of, and the shape of mounting hole 2 is long waist shape, and the quantity of solid fixed ring 4 is a plurality of, and the equidistance is arranged between the solid fixed ring 4.
Example two
The utility model provides an operation platform is used in relay protection automatic testing, including dull and stereotyped 1, mounting hole 2 has been seted up at dull and stereotyped 1's top, the bottom of dull and stereotyped 1 is run through and is provided with supporting mechanism 3, solid fixed ring 4 is installed at dull and stereotyped 1's top inlay, solid fixed ring 4's surface is run through and is provided with measuring mechanism 5, measuring mechanism 6 is installed to measuring mechanism 5's bottom, the surface clamp of connecting mechanism 6 has wire 7, the surface of wire 7 is provided with wire separating mechanism 8, through setting up mounting hole 2, make things convenient for dull and stereotyped 1 to be connected with supporting mechanism 3, thereby support dull and stereotyped 1.
Supporting mechanism 3 includes first threaded rod 9, the top of first threaded rod 9 runs through to the top of mounting hole 2, the surface thread cover of first threaded rod 9 is equipped with first nut 10, the bottom welding of first threaded rod 9 has first backing plate 11, the bottom welding of first backing plate 11 has montant 12, the bottom cover of montant 12 is equipped with sleeve pipe 13, the surface of sleeve pipe 13 runs through and is provided with fastening bolt 14, through setting up supporting mechanism 3, can support dull and stereotyped 1, through setting up first threaded rod 9 and first nut 10, can fix montant 12 and first backing plate 11, through setting up first backing plate 11, the area of contact between montant 12 and dull and stereotyped 1 has been increased, can be to the better support of dull and stereotyped 1.
One end of the fastening bolt 14 runs through to the inner cavity of the sleeve 13 and contacts with the vertical rod 12, the surface of the fastening bolt 14 is in threaded connection with the inner wall of the sleeve 13, the fastening bolt 14 is arranged, the sleeve 13 can be fixed, and the adjustable vertical rod 12 is located in the inner cavity of the sleeve 13, so that the supporting height of the flat plate 1 is adjusted, and the experiment operation of workers is facilitated.
The surface of the first threaded rod 9 is in threaded connection with a first nut 10, the bottom of the first nut 10 being in contact with the top of the plate 1 and the top of the first shim plate 11 being in contact with the bottom of the plate 1.
The wiring mechanism 6 comprises a second threaded rod 18, the top of the second threaded rod 18 penetrates through the measuring mechanism 5 and is in threaded connection with the measuring mechanism 5, a wiring seat 19 is welded at the bottom of the second threaded rod 18, a third threaded rod 20 is arranged at the bottom of the wiring seat 19 in a penetrating mode, the top of the third threaded rod 20 penetrates through an inner cavity of the wiring seat 19, and a clamping plate 21 is movably connected to the top of the third threaded rod 20.
The inner wall of connection terminal 19 and the surperficial threaded connection of third threaded rod 20, splint 21 surface and the inner wall movable contact of connection terminal 19, the bottom welding of third threaded rod 20 has knob 22, through setting up connection terminal 19, conveniently be connected with wire 7, through setting up third threaded rod 20, can drive splint 21 vertical movement, can press from both sides tightly wire 7, avoid wire 7 to break away from with connection terminal 19 behind the external pulling force, through setting up knob 22, the area of contact of third threaded rod 20 with the finger has been increased, the rotation of the third threaded rod 20 of being convenient for, through second threaded rod 18 and 15 threaded connection of measuring staff, be convenient for connect fixed to binding mechanism 6, the dismantlement of the binding mechanism 6 of being convenient for simultaneously.
EXAMPLE III
The utility model provides an operation platform is used in relay protection automatic testing, including dull and stereotyped 1, mounting hole 2 has been seted up at dull and stereotyped 1's top, the bottom of dull and stereotyped 1 is run through and is provided with supporting mechanism 3, solid fixed ring 4 is installed at dull and stereotyped 1's top inlay, solid fixed ring 4's surface is run through and is provided with measuring mechanism 5, measuring mechanism 6 is installed to measuring mechanism 5's bottom, the surface clamp of connecting mechanism 6 has wire 7, the surface of wire 7 is provided with wire separating mechanism 8, through setting up mounting hole 2, make things convenient for dull and stereotyped 1 to be connected with supporting mechanism 3, thereby support dull and stereotyped 1.
Supporting mechanism 3 includes first threaded rod 9, the top of first threaded rod 9 runs through to the top of mounting hole 2, the surface thread cover of first threaded rod 9 is equipped with first nut 10, the bottom welding of first threaded rod 9 has first backing plate 11, the bottom welding of first backing plate 11 has montant 12, the bottom cover of montant 12 is equipped with sleeve pipe 13, the surface of sleeve pipe 13 runs through and is provided with fastening bolt 14, through setting up supporting mechanism 3, can support dull and stereotyped 1, through setting up first threaded rod 9 and first nut 10, can fix montant 12 and first backing plate 11, through setting up first backing plate 11, the area of contact between montant 12 and dull and stereotyped 1 has been increased, can be to the better support of dull and stereotyped 1.
One end of the fastening bolt 14 runs through to the inner cavity of the sleeve 13 and contacts with the vertical rod 12, the surface of the fastening bolt 14 is in threaded connection with the inner wall of the sleeve 13, the fastening bolt 14 is arranged, the sleeve 13 can be fixed, and the adjustable vertical rod 12 is located in the inner cavity of the sleeve 13, so that the supporting height of the flat plate 1 is adjusted, and the experiment operation of workers is facilitated.
The surface of the first threaded rod 9 is in threaded connection with a first nut 10, the bottom of the first nut 10 is in contact with the top of the plate 1, and the top of the first shim plate 11 is in contact with the bottom of the plate 1.
The wire distributing mechanism 8 comprises a wire distributing frame 23, a wire distributing groove 24 is formed in the bottom of the wire distributing frame 23, and protrusions 25 are integrally formed on two sides of the inner wall of the wire distributing groove 24.
The number of the wire distributing grooves 24 is a plurality, the wire distributing grooves 24 are arranged at equal intervals in the transverse direction, one ends of the wires 7 penetrate through the wire distributing grooves 24, the wires 7 can be distributed and sorted by arranging the wire distributing frames 23, the designated wires 7 can be found conveniently, and the wires 7 can be limited in the inner cavities of the wire distributing grooves 24 by arranging the protrusions 25.
The quantity of mounting hole 2 is a plurality of, and the shape of mounting hole 2 is long waist shape, and the quantity of solid fixed ring 4 is a plurality of, and the equidistance is arranged between the solid fixed ring 4.
When in use: one end of a wire 7 extends into the inner cavity of the wire holder 19, the knob 22 is rotated to drive the third threaded rod 20 to rotate, the third threaded rod 20 is in threaded connection with the wire holder 19 through the third threaded rod 20, the clamp plate 21 is driven by the third threaded rod 20 to move upwards, the wire 7 is clamped by the clamp plate 21, and the other end of the wire 7 is clamped into the inner cavity of the wire dividing groove 24; the detection rod 15 penetrates from the bottom of the fixing ring 4 to the top of the fixing ring 4, the second nuts 16 are rotated to be in threaded connection with the detection rod 15, the upper second nuts 16 and the lower second nuts 16 drive the second base plate 17 to be close to the flat plate 1, the flat plate 1 is clamped and fixed, the detection rod 15 is fixedly installed, and a measurement experiment is carried out through the detection rod 15; vertical removal montant 12 drives first backing plate 11 vertical migration, and first backing plate 11 drives dull and stereotyped 1 vertical migration, and dull and stereotyped 1 drives 16 vertical migration of second nut, and second nut 16 drives 15 vertical migration of measuring pole, adjusts the height of measuring pole 15, and rotatory fastening bolt 14 through fastening bolt 14 and sleeve pipe 13 threaded connection, makes fastening bolt 14 remove and montant 12 in close contact with, fixes montant 12.
In conclusion: this relay protection is operation platform for automatic test, through dull and stereotyped 1, mounting hole 2, supporting mechanism 3, gu fixed ring 4, measuring mechanism 5, wiring mechanism 6, wire 7 and branching mechanism 8 cooperate, it needs frequent being connected with the wire to detect to have solved current relay protection is operation platform test end for automatic test, very big trouble has been brought for the staff, detection efficiency is low, can not adjust the support height of sense terminal, be not convenient for dismantle the sense terminal, be not convenient for carry out the centre gripping to the wire fixed, the wire drops easily after receiving outside pulling force, the problem that people used is not convenient for.
Claims (10)
1. The utility model provides an operation platform is used in automatic test of relay protection, includes dull and stereotyped (1), its characterized in that: mounting hole (2) have been seted up at the top of dull and stereotyped (1), the bottom of dull and stereotyped (1) is run through and is provided with supporting mechanism (3), the top of dull and stereotyped (1) is inlayed and is installed solid fixed ring (4), the surface of solid fixed ring (4) is run through and is provided with measuring mechanism (5), wiring mechanism (6) are installed to the bottom of measuring mechanism (5), the surface clamp of wiring mechanism (6) has wire (7), the surface of wire (7) is provided with wire separating mechanism (8).
2. The operation platform for the automatic testing of the relay protection according to claim 1, wherein: supporting mechanism (3) include first threaded rod (9), the top of first threaded rod (9) runs through to the top of mounting hole (2), the surface thread cover of first threaded rod (9) is equipped with first nut (10), the bottom welding of first threaded rod (9) has first backing plate (11), the bottom welding of first backing plate (11) has montant (12), the bottom cover of montant (12) is equipped with sleeve pipe (13), the surface of sleeve pipe (13) is run through and is provided with gim peg (14).
3. The operation platform for the automatic testing of the relay protection according to claim 2, wherein: one end of the fastening bolt (14) penetrates through the inner cavity of the sleeve (13) and is in contact with the vertical rod (12), and the surface of the fastening bolt (14) is in threaded connection with the inner wall of the sleeve (13).
4. The operation platform for the automatic test of the relay protection according to claim 2, wherein: the surface of the first threaded rod (9) is in threaded connection with a first nut (10), the bottom of the first nut (10) is in contact with the top of the flat plate (1), and the top of the first backing plate (11) is in contact with the bottom of the flat plate (1).
5. The operation platform for the automatic testing of the relay protection according to claim 1, wherein: measuring mechanism (5) is including measuring staff (15), the bottom of measuring staff (15) runs through to the bottom of solid fixed ring (4), the top on measuring staff (15) surface and the equal thread bush in bottom are equipped with second nut (16), the surface contact of one side that second nut (16) is relative and solid fixed ring (4), the fixed surface cover of second nut (16) is equipped with second backing plate (17), one side and dull and stereotyped (1) contact of second backing plate (17).
6. The operation platform for the automatic test of the relay protection according to claim 1, wherein: connection mechanism (6) include second threaded rod (18), the top of second threaded rod (18) run through measuring mechanism (5) and with measuring mechanism (5) threaded connection, the bottom welding of second threaded rod (18) has connection terminal (19), the bottom of connection terminal (19) is run through and is provided with third threaded rod (20), the inner chamber to connection terminal (19) is run through at the top of third threaded rod (20), the top swing joint of third threaded rod (20) has splint (21).
7. The operation platform for the automatic test of the relay protection according to claim 6, wherein: the inner wall of wire holder (19) and the surperficial threaded connection of third threaded rod (20), splint (21) surface and the inner wall movable contact of wire holder (19), the bottom welding of third threaded rod (20) has knob (22).
8. The operation platform for the automatic test of the relay protection according to claim 1, wherein: the wire dividing mechanism (8) comprises a wire dividing frame (23), a wire dividing groove (24) is formed in the bottom of the wire dividing frame (23), and protrusions (25) are integrally formed on two sides of the inner wall of the wire dividing groove (24).
9. The operation platform for the automatic test of the relay protection according to claim 8, wherein: the number of the wire distributing grooves (24) is a plurality of, the wire distributing grooves (24) are arranged in a transverse equidistant mode, and one end of the wire (7) penetrates through the wire distributing grooves (24).
10. The operation platform for the automatic test of the relay protection according to claim 1, wherein: the quantity of mounting hole (2) is a plurality of, the shape of mounting hole (2) is long waist shape, the quantity of solid fixed ring (4) is a plurality of, the equidistance is arranged between solid fixed ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221747328.6U CN217717867U (en) | 2022-07-08 | 2022-07-08 | Operation platform for automatic testing of relay protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221747328.6U CN217717867U (en) | 2022-07-08 | 2022-07-08 | Operation platform for automatic testing of relay protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217717867U true CN217717867U (en) | 2022-11-01 |
Family
ID=83777925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221747328.6U Active CN217717867U (en) | 2022-07-08 | 2022-07-08 | Operation platform for automatic testing of relay protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217717867U (en) |
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2022
- 2022-07-08 CN CN202221747328.6U patent/CN217717867U/en active Active
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