CN114217188A - Power frequency does not have protection device for partial discharge test complete sets - Google Patents
Power frequency does not have protection device for partial discharge test complete sets Download PDFInfo
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- CN114217188A CN114217188A CN202111555287.0A CN202111555287A CN114217188A CN 114217188 A CN114217188 A CN 114217188A CN 202111555287 A CN202111555287 A CN 202111555287A CN 114217188 A CN114217188 A CN 114217188A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0437—Channels
- H02G3/045—Channels provided with perforations or slots permitting introduction or exit of wires
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
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Abstract
The invention discloses a standby protection device for a power frequency partial discharge-free test complete set, which belongs to the field of high-voltage tests and comprises a test transformer and a control assembly electrically connected with the test transformer, wherein the output end of the test transformer is electrically connected with a current limiting mechanism, the lower end of the test transformer is provided with a bottom plate, the upper end of the bottom plate is horizontally provided with a plurality of grooves, the upper ends of the grooves are provided with a plurality of sliding plates in a sliding manner, the upper ends of the sliding plates are provided with heat dissipation mechanisms, test circuits are arranged in the grooves, both ends of the sliding plates are provided with wire outgoing grooves, one end of each test circuit extends out of the inside of the wire outgoing groove and is electrically connected with the test transformer, and the inside of each wire outgoing groove is provided with a protection mechanism.
Description
Technical Field
The invention relates to the field of high-voltage electric tests, in particular to a protection device for a power frequency partial discharge-free test complete equipment.
Background
The novel cascade protection device for the coupling test power frequency transformer, disclosed by the authorization notice number CN111830299A, comprises a first small-level protection part and a second small-level protection part; the first small-level protection part is connected in series between a tested object of the surge voltage and power frequency overvoltage coupling test system and the voltage regulating resistor; the second small-level protection part is a solid-phase arc-extinguishing impact-proof device; the solid-phase arc extinguishing impact-proof device mainly comprises a solid-phase arc extinguisher and a graphite head, wherein the solid-phase arc extinguisher is used for striking an arc and generating strong airflow for arc extinguishing, although the first small-level protection part and the second small-level protection part are used for protecting experimental equipment, the voltage invasion wave applied to the experimental equipment by impact voltage is relieved, and the service life of the experimental equipment is prolonged;
the traditional high-voltage electric element is usually detected by a power frequency partial discharge-free test complete equipment, current is input into a test transformer by a power frequency power supply, the current is tuned by a partial discharge instrument, a control box and an isolation filter, the power frequency power supply and the test transformer are electrically connected by a water resistor, the water resistor relieves the impact of the current on the test transformer, and then the test transformer transmits the current in a specified voltage range to the high-voltage electric element;
however, when the existing power frequency partial discharge-free test complete equipment tests the high-voltage element, cables of internal circuits of the equipment are placed in a mess, the cables are easily pulled by a user when the user moves an electrical appliance, the cables are easily extruded or rubbed with the electrical appliance, the situation that the cables are cut by sharp ends of the electrical appliance is caused, and the problem that the power frequency partial discharge-free test complete equipment is damaged is caused.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a protection device for a power frequency partial discharge-free test complete equipment, which can reduce the pulling force and the cutting force applied to a test circuit by electrical equipment and a user and reduce the occurrence of the conditions of damage and electric leakage of the electrical equipment caused by the rupture of the test circuit.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
The utility model provides a power frequency does not have protection device for partial discharge test complete sets, including test transformer and with test transformer electric connection's control assembly, test transformer's output electric connection has current limiting mechanism, test transformer's lower extreme is provided with the bottom plate, a plurality of recesses have been seted up to the upper end level of bottom plate, the upper end slidable mounting of recess has a plurality of slides, the upper end of slide is provided with heat dissipation mechanism, the inside of recess is provided with test circuit, the wire outgoing groove has all been seted up at the both ends of slide, inside and electric connection in test transformer of wire outgoing groove is extended to test circuit's one end, the inside of wire outgoing groove is provided with protection machanism.
Furthermore, the protection mechanism comprises elastic strips fixedly installed at the upper end and the lower end of the wire outlet groove respectively, a plurality of buffer grooves are formed in the inner side of each elastic strip, and an anti-sticking film is fixedly installed on one side, far away from the sliding plate, of each elastic strip.
Further, heat dissipation mechanism is including seting up a plurality of louvres in the slide upper end, the inboard fixed mounting of louvre has the ring of weaving.
Furthermore, a plurality of slots are formed in one end of the bottom plate, one ends of the slots are communicated with the grooves, a plurality of limiting columns are inserted into the lower walls inside the slots, and baffles are fixedly connected to the upper ends of the limiting columns.
Furthermore, the inner wall of the slot is provided with a limiting groove for inserting the limiting column, and a magnet is fixedly arranged inside the limiting groove.
Further, the current limiting mechanism comprises a current limiting resistor electrically connected to the output end of the test transformer, the output end of the current limiting resistor is electrically connected to a coupling capacitor, an arc support is sleeved at one end, away from the test transformer, of the current limiting resistor, at least two screw rods are installed at the lower end of the arc support in a rotating mode, and the arc support and the screw rods are made of plastics.
Furthermore, a threaded cylinder is inserted into one end of the screw rod, which is far away from the arc support, in a threaded manner, a bearing seat is rotatably installed at one end of the threaded cylinder, which is far away from the screw rod, and the lower end of the bearing seat is fixedly connected to the upper end of the sliding plate.
Furthermore, a plurality of ribbed plates are fixedly mounted on the outer side of the bearing seat, and buffering slopes are fixedly mounted on two sides of each ribbed plate.
Further, a base is fixedly installed at the lower end of the test transformer, and a triangular seat is fixedly installed at the lower end of the coupling capacitor.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) this scheme is through promoting the slide on the recess, the wire groove that is located the test transformer and the control assembly outside on the slide opens, simultaneously the staff lays test circuit through recess and wire groove, test circuit is cliied through the wire groove of two adjacent slides afterwards, and through test circuit electric connection work piece that awaits measuring in proper order, test transformer and control assembly, make things convenient for the test site cable to be summarized in order and put up, remove the work piece that awaits measuring simultaneously through promoting the bottom plate, test transformer, control assembly and test circuit, thereby test circuit and electrical equipment are separated to the bottom plate, reduce electrical equipment and user and to the pulling power and the cutting force that test circuit applyed, it leads to its damage and the condition emergence of electric leakage to reduce electrical equipment because of test circuit breaks.
(2) This scheme is held in the palm and the other end that the screw rod supported current-limiting resistor through the arc, and two screw rods are triangle-shaped simultaneously and support the arc and hold in the palm, practice thrift the artifical operating procedure that holds up current-limiting resistor, reduce the swing among the current-limiting resistor connection process to reduce current-limiting resistor and cause the condition emergence of collision coupling capacitance because of the swing, conveniently set up current-limiting resistor and coupling capacitance between test transformer and the work piece that awaits measuring.
(3) This scheme is through rotating a screw thread section of thick bamboo, and a screw thread section of thick bamboo rotates around its junction with the bearing frame for the screw thread of a screw thread section of thick bamboo inner wall drives the screw rod rotation and goes up and down, changes the height that the arc held in the palm through screw rod, a screw thread section of thick bamboo and bearing frame, conveniently adjusts current-limiting resistor's height, comes the high different coupling capacitance of adaptation.
(4) This scheme passes through elastic strip and the crowded tight test circuit of anti-sticking film, wire slot corner and test circuit are conveniently separated, reduce test circuit and because of receiving the condition emergence that the extrusion of wire slot corner leads to the fracture, the regional deformation that is located the dashpot through the elastic strip simultaneously, alleviate the inside stress of elastic strip, it arouses ruptured condition emergence because of receiving the extrusion to reduce the elastic strip, then reduce the adhesive force between elastic strip and the test circuit through anti-sticking film, conveniently separate elastic strip and test circuit.
(5) This scheme is through the area of contact of louvre increase recess and air for the air is in the inside circulation of recess, and through the characteristic effect of weaving the ring ice silk material, the heat on the quick absorption recess internal test circuit of weaving ring makes things convenient for the test circuit heat dissipation simultaneously.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of the base plate of the present invention;
FIG. 3 is a schematic diagram of a front view of a socket according to the present invention;
FIG. 4 is a front view of the skateboard of the present invention;
FIG. 5 is a schematic front view of the elastic strip of the present invention;
FIG. 6 is a schematic bottom view of the baffle of the present invention;
FIG. 7 is a schematic front view of the screw of the present invention;
fig. 8 is a front view of the bearing seat of the present invention.
The reference numbers in the figures illustrate:
1. testing the transformer; 2. a control component; 3. a base plate; 4. a groove; 5. a slide plate; 6. a test circuit; 7. an outlet groove; 8. an elastic strip; 9. a buffer tank; 10. an anti-adhesion film; 11. heat dissipation holes; 12. weaving a ring; 13. a slot; 14. a limiting column; 15. a baffle plate; 16. a limiting groove; 17. a magnet; 18. a current limiting resistor; 19. a coupling capacitor; 20. an arc support; 21. a screw; 22. a threaded barrel; 23. a bearing seat; 24. a rib plate; 25. buffering the slope; 26. a base; 27. a triangular seat.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
Example 1:
referring to fig. 1-8, a protection device for a power frequency partial discharge-free test complete equipment, comprising a test transformer 1 and a control component 2 electrically connected with the test transformer 1, wherein the control component 2 comprises a partial discharge instrument, a control box, an isolation filter and a power supply electrically connected with the isolation filter, the technical scheme is the prior art, not shown in the figure, an output end of the test transformer 1 is electrically connected with a current limiting mechanism, a bottom plate 3 is arranged at the lower end of the test transformer 1, a plurality of grooves 4 are horizontally arranged at the upper end of the bottom plate 3, a plurality of sliding plates 5 are slidably arranged at the upper ends of the grooves 4, a heat dissipation mechanism is arranged at the upper ends of the sliding plates 5, a test circuit 6 is arranged inside the grooves 4, wire outlet grooves 7 are arranged at both ends of the sliding plates 5, one end of the test circuit 6 extends out of the wire outlet grooves 7 and is electrically connected with the test transformer 1, the protection mechanism is arranged in the wire outlet groove 7, when the test device works, the test transformer 1 and the control component 2 are arranged on the bottom plate 3, then the sliding plate 5 on the groove 4 is pushed, the wire outlet groove 7 on the sliding plate 5, which is positioned at the outer side of the test transformer 1 and the control component 2, is opened, meanwhile, a worker lays the test circuit 6 through the groove 4 and the wire outlet groove 7, then the test circuit 6 is clamped through the wire outlet grooves 7 of two adjacent sliding plates 5, the test circuit 6 is sequentially and electrically connected with a workpiece to be tested, the test transformer 1 and the control component 2 through the test circuit 6, the cable in a test field is conveniently and orderly summarized and sorted, meanwhile, the workpiece to be tested, the test transformer 1, the control component 2 and the test circuit 6 are moved by pushing the bottom plate 3, so that the test circuit 6 and the electrical equipment are separated by the bottom plate 3, and the pulling force and the cutting force applied to the test circuit 6 by the electrical equipment and a user are reduced, the electric equipment is reduced from being damaged and leaking electricity due to the breakage of the test circuit 6.
With reference to fig. 1 and 2, further, the bottom plate 3 and the sliding plate 5 are made of high-strength plastic, so that current isolation is facilitated, the test transformer 1 and the control assembly 2 can be supported, further, the sliding plate 5 is trapezoidal in structure, so that the groove 4 can apply supporting force in the vertical direction to the sliding plate 5, and the situation that the sliding plate 5 vertically slides down from the groove 4 is reduced.
Referring to fig. 1, the current limiting mechanism includes a current limiting resistor 18 electrically connected to the output end of the testing transformer 1, the output end of the current limiting resistor 18 is electrically connected to a coupling capacitor 19, an arc support 20 is sleeved on one end of the current limiting resistor 18 far away from the testing transformer 1, at least two screws 21 are rotatably installed at the lower end of the arc support 20, the arc support 20 and the screws 21 are made of plastics, so as to prevent the current on the discharge testing equipment from guiding the arc support 20 and the screws 21, meanwhile, one end of the current limiting resistor 18 is electrically connected to the testing transformer 1, and supports the other end of the current limiting resistor 18 through the arc support 20 and the screws 21, and the two screws 21 support the arc support 20 in a triangular shape, so as to save the operation steps of manually supporting the current limiting resistor 18, and then the coupling capacitor 19 is moved close to the current limiting resistor 18 until one end of the coupling capacitor 19 is electrically connected to the current limiting resistor 18, the method has the advantages that the steps are simple and easy to operate, the swing of the current limiting resistor 18 in the connection process is reduced, the condition that the current limiting resistor 18 collides the coupling capacitor 19 due to the swing is reduced, the current limiting resistor 18 and the coupling capacitor 19 are conveniently arranged between the test transformer 1 and the workpiece to be detected, and then the workpiece to be detected is subjected to power frequency detection through the test transformer 1, the control assembly 2, the current limiting resistor 18 and the coupling capacitor 19.
Referring to fig. 1 and 7, a threaded cylinder 22 is inserted into a threaded hole at one end of a screw 21 far from an arc support 20, a bearing seat 23 is rotatably installed at one end of the threaded cylinder 22 far from the screw 21, the threaded cylinder 22 and the bearing seat 23 are rotatably connected through a bearing, the technical scheme is the prior art, the lower end of the bearing seat 23 is fixedly connected to the upper end of a sliding plate 5, when the height of a current limiting resistor 18 needs to be adjusted, the threaded cylinder 22 rotates around the connection part of the threaded cylinder 22 and the bearing seat 23 by rotating the threaded cylinder 22, so that the threaded hole on the inner wall of the threaded cylinder 22 drives the screw 21 to rotate and lift, the height of the arc support 20 is changed through the screw 21, the threaded cylinder 22 and the bearing seat 23, the height of the current limiting resistor 18 is conveniently adjusted to adapt to coupling capacitors 19 with different heights, and the screw 21, the threaded cylinder 22 and the bearing seat 23 are driven to horizontally move to a designated position by pushing the sliding plate 5, make things convenient for bearing frame 23 to aim at current-limiting resistor 18's lower extreme, further, the material of bearing frame 23 is wooden for bearing frame 23 is light easy to move.
Referring to fig. 7 and 8, a plurality of ribs 24 are fixedly mounted on the outer side of the bearing seat 23, buffer slopes 25 are fixedly mounted on both sides of the ribs 24, when the bearing seat 23 is pressed in an inclined direction by the threaded cylinder 22, the ribs 24 reinforce the relationship between the sliding plate 5 and the bearing seat 23, so that the bearing seat 23 is pressed by a plurality of supporting forces in a horizontal direction by the ribs 24, the pressure applied to the bearing seat 23 is relieved, the occurrence of the situation that the bearing seat 23 is separated from the sliding plate 5 due to the pressure is reduced, and meanwhile, the strength of the ribs 24 is improved by the buffer slopes 25, and the stress in the ribs 24 is relieved.
Referring to fig. 1, a base 26 is fixedly mounted at the lower end of the test transformer 1, a triangular seat 27 is fixedly mounted at the lower end of the coupling capacitor 19, the contact area between the test transformer 1 and the bottom plate 3 is increased through the base 26, and meanwhile, the contact area between the coupling capacitor 19 and the bottom plate 3 is increased through the triangular seat 27, so that the pressure applied by the test transformer 1 and the coupling capacitor 19 on the bottom plate 3 is reduced, and the occurrence of deformation of the bottom plate 3 caused by local excessive pressure is reduced.
Referring to fig. 3 and 6, a plurality of slots 13 have been seted up to bottom plate 3's one end, slot 13's one end and recess 4 intercommunication, the inside lower wall of slot 13 is pegged graft and is had a plurality of spacing posts 14, spacing post 14's upper end fixedly connected with baffle 15, when slide 5 needs to be changed and is maintained in recess 4, through extracting spacing post 14 and baffle 15 in the slot 13, make slot 13 and recess 4 intercommunication, promote slide 5 in proper order, take out slide 5 along recess 4 and slot 13, and change new slide 5, then insert spacing post 14 and baffle 15 back into slot 13, restrict slide 5's displacement, conveniently change and maintain slide 5, furtherly, the material of baffle 15 is hard rubber, conveniently prolong the life of baffle 15, and lightly easily get and put.
Referring to fig. 3 and 6, the inner wall of the slot 13 is provided with a limiting groove 16 for inserting the limiting post 14, a magnet 17 is fixedly mounted inside the limiting groove 16, the limiting post 14 is made of magnetic metal, and when the limiting groove 16 is connected with the limiting post 14, attraction is applied to the limiting post 14 through the magnet 17 in the limiting groove 16, so that the limiting post 14 applies vertical tension to the baffle 15, and the sliding of the baffle 15 in the slot 13 is reduced.
Referring to fig. 4 and 5, the protection machanism is including the elastic strip 8 of difference fixed mounting lower extreme on outlet slot 7, a plurality of dashpots 9 have been seted up to the inboard of elastic strip 8, one side fixed mounting that slide 5 was kept away from to elastic strip 8 has anti-sticking film 10, when outlet slot 7 presss from both sides tight test circuit 6, through elastic strip 8 and anti-sticking film 10 crowded tight test circuit 6, conveniently separate outlet slot 7 corner and test circuit 6, it takes place because of receiving the condition that outlet slot 7 corner extrusion leads to the fracture to reduce test circuit 6, simultaneously through the regional deformation that elastic strip 8 is located dashpot 9, alleviate the inside stress of elastic strip 8, it takes place because of receiving the condition that the extrusion arouses the fracture to reduce elastic strip 8, then reduce the adhesive force between elastic strip 8 and the test circuit 6 through anti-sticking film 10, conveniently separate elastic strip 8 and test circuit 6.
Referring to fig. 2 and 4, heat dissipation mechanism is including seting up a plurality of louvres 11 in slide 5 upper end, ring 12 is woven to inboard fixed mounting of louvre 11, the material of weaving ring 12 is the ice silk, when protection machanism during operation, through the area of contact of louvre 11 increase recess 4 and air, make the air circulate in the inside of recess 4, simultaneously through the characteristic effect of weaving ring 12 ice silk material, weave ring 12 and absorb the heat on the 4 internal test circuit 6 of recess fast, make things convenient for test circuit 6 heat dissipation.
The working principle is as follows: when in work, the test transformer 1 and the control component 2 are arranged on the bottom plate 3, then the wire outlet groove 7 on the sliding plate 5 positioned at the outer sides of the test transformer 1 and the control component 2 is opened by pushing the sliding plate 5 on the groove 4, meanwhile, a worker lays a test circuit 6 through the groove 4 and the wire outlet groove 7, then clamps the test circuit 6 through the wire outlet grooves 7 of two adjacent sliding plates 5, and is electrically connected with the workpiece to be tested, the testing transformer 1 and the control component 2 in sequence through the testing circuit 6, so that the cables in the testing field are conveniently and orderly summarized and sorted, meanwhile, the workpiece to be tested, the testing transformer 1, the control component 2 and the testing circuit 6 are moved by pushing the bottom plate 3, therefore, the bottom plate 3 separates the test circuit 6 from the electrical equipment, the pulling force and the cutting force applied to the test circuit 6 by the electrical equipment and a user are reduced, and the condition that the electrical equipment is damaged and leaks electricity due to the rupture of the test circuit 6 is reduced.
Meanwhile, one end of the current limiting resistor 18 is electrically connected to the test transformer 1, the other end of the current limiting resistor 18 is supported by the arc support 20 and the screw rods 21, the two screw rods 21 support the arc support 20 in a triangular mode, the operation step of manually holding the current limiting resistor 18 is saved, the coupling capacitor 19 is moved to be close to the current limiting resistor 18 until one end of the coupling capacitor 19 is electrically connected to the current limiting resistor 18, the step is simple, convenient and easy to operate, swing in the connection process of the current limiting resistor 18 is reduced, the situation that the current limiting resistor 18 collides with the coupling capacitor 19 due to swing is reduced, the current limiting resistor 18 and the coupling capacitor 19 are conveniently arranged between the test transformer 1 and a workpiece to be tested, and then power frequency detection is carried out on the workpiece to be tested through the test transformer 1, the control assembly 2, the current limiting resistor 18 and the coupling capacitor 19.
When the height of current limiting resistor 18 needs to be adjusted, through rotating thread cylinder 22, thread cylinder 22 rotates around its junction with bearing frame 23, make the screw thread of thread cylinder 22 inner wall drive screw rod 21 rotatory and go up and down, change the height of arc support 20 through screw rod 21, thread cylinder 22 and bearing frame 23, conveniently adjust current limiting resistor 18's height, come the different coupling capacitance 19 of adaptation height, drive screw rod 21, thread cylinder 22 and bearing frame 23 horizontal migration to the assigned position through promoting slide 5 simultaneously, make things convenient for bearing frame 23 to aim at current limiting resistor 18's lower extreme.
When outlet slot 7 presss from both sides tight test circuit 6, through elastic strip 8 and anti-sticking film 10 crowded tight test circuit 6, conveniently separate 7 corners of outlet slot and test circuit 6, it takes place because of the condition that receives outlet slot 7 corners extrusion to lead to the fracture to reduce test circuit 6, the regional deformation that is located buffer slot 9 through elastic strip 8 simultaneously, alleviate the inside stress of elastic strip 8, reduce elastic strip 8 and arouse cracked condition because of receiving the extrusion and take place, then reduce the adhesive force between elastic strip 8 and test circuit 6 through anti-sticking film 10, conveniently separate elastic strip 8 and test circuit 6.
When protection mechanism during operation, through the area of contact of 11 increase recesses 4 of louvre and air for the air circulates in the inside of recess 4, and through the characteristic effect of weaving 12 ice silk materials of ring, weaving 12 and absorbing the heat on the 4 internal test circuit 6 of recess fast, make things convenient for test circuit 6 to dispel the heat simultaneously.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (9)
1. The utility model provides a power frequency does not have protection device for partial discharge test complete sets, includes test transformer (1) and with test transformer (1) electric connection's control assembly (2), its characterized in that: the output electric connection of test transformer (1) has current limiting mechanism, the lower extreme of test transformer (1) is provided with bottom plate (3), a plurality of recesses (4) have been seted up to the upper end level of bottom plate (3), the upper end slidable mounting of recess (4) has a plurality of slide (5), the upper end of slide (5) is provided with heat dissipation mechanism, the inside of recess (4) is provided with test circuit (6), wire outgoing groove (7) have all been seted up at the both ends of slide (5), the one end of test circuit (6) is extended inside and electric connection in test transformer (1) of wire outgoing groove (7), the inside of wire outgoing groove (7) is provided with protection machanism.
2. The protection device for the power frequency partial discharge-free test complete equipment according to claim 1, characterized in that: the protection mechanism comprises elastic strips (8) which are fixedly arranged at the upper end and the lower end of the wire outlet groove (7) respectively, a plurality of buffer grooves (9) are formed in the inner side of each elastic strip (8), and an anti-sticking film (10) is fixedly arranged on one side, far away from the sliding plate (5), of each elastic strip (8).
3. The protection device for the power frequency partial discharge-free test complete equipment according to claim 1, characterized in that: the heat dissipation mechanism comprises a plurality of heat dissipation holes (11) formed in the upper end of the sliding plate (5), and weaving rings (12) are fixedly mounted on the inner sides of the heat dissipation holes (11).
4. The protection device for the power frequency partial discharge-free test complete equipment according to claim 1, characterized in that: a plurality of slots (13) have been seted up to the one end of bottom plate (3), the one end and recess (4) intercommunication of slot (13), the lower wall of slot (13) inside is pegged graft and is had a plurality of spacing posts (14), the upper end fixedly connected with baffle (15) of spacing post (14).
5. The protection device for power frequency partial discharge-free test complete equipment according to claim 4, characterized in that: the inner wall of the slot (13) is provided with a limiting groove (16) for inserting the limiting column (14), and a magnet (17) is fixedly mounted inside the limiting groove (16).
6. The protection device for the power frequency partial discharge-free test complete equipment according to claim 1, characterized in that: the current limiting mechanism comprises a current limiting resistor (18) electrically connected to the output end of the test transformer (1), the output end of the current limiting resistor (18) is electrically connected with a coupling capacitor (19), the end, far away from the test transformer (1), of the current limiting resistor (18) is sleeved with an arc support (20), the lower end of the arc support (20) is rotated to install at least two screw rods (21), and the arc support (20) and the screw rods (21) are made of plastics.
7. The protection device for the power frequency partial discharge-free test complete equipment according to claim 6, wherein: a threaded cylinder (22) is inserted into one end, far away from the arc support (20), of the screw rod (21) in a threaded mode, a bearing seat (23) is installed at one end, far away from the screw rod (21), of the threaded cylinder (22) in a rotating mode, and the lower end of the bearing seat (23) is fixedly connected to the upper end of the sliding plate (5).
8. The protection device for power frequency partial discharge-free test complete equipment according to claim 7, characterized in that: a plurality of ribbed plates (24) are fixedly mounted on the outer side of the bearing seat (23), and buffer slopes (25) are fixedly mounted on two sides of each ribbed plate (24).
9. The protection device for the power frequency partial discharge-free test complete equipment according to claim 6, wherein: the lower extreme fixed mounting of test transformer (1) has base (26), coupling capacitor's (19) lower extreme fixed mounting has trigonometry seat (27).
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