CN111599584A - High-voltage bushing end screen device - Google Patents
High-voltage bushing end screen device Download PDFInfo
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- CN111599584A CN111599584A CN202010695652.7A CN202010695652A CN111599584A CN 111599584 A CN111599584 A CN 111599584A CN 202010695652 A CN202010695652 A CN 202010695652A CN 111599584 A CN111599584 A CN 111599584A
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- Prior art keywords
- sleeve
- obstacle
- grounding
- column
- side wall
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2605—Measuring capacitance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2688—Measuring quality factor or dielectric loss, e.g. loss angle, or power factor
- G01R27/2694—Measuring dielectric loss, e.g. loss angle, loss factor or power factor
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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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
Abstract
The invention discloses a high-voltage bushing end screen device, which comprises a base arranged on the side wall of a bushing and an extraction column which is connected on the base in a penetrating way, wherein the extraction column is connected with a grounding early warning mechanism at the side wall of one end far away from the base, the temperature in an extraction copper sleeve and the bushing can be simultaneously obtained through an alarm column and a temperature detector, and the bushing and the end screen are subjected to real-time early warning detection according to the change of the temperature, when the high-voltage bushing end screen device is implemented, once an obstacle-removing grounding cap is connected with the base, a push rod can be clamped into a square through hole at the moment to push a push sheet, then the extraction copper sleeve can fully press a grounding flange, the condition that the normal use of the bushing is influenced due to poor contact of the extraction copper sleeve is avoided, in the daily use process, the temperature in the bushing can be displayed on the temperature detector in real time, so that a user can safely, the condition that the fault exists inside the sleeve but the fault is not detected in time can not occur.
Description
Technical Field
The embodiment of the invention relates to the technical field of high-voltage bushings, in particular to a high-voltage bushing end screen device.
Background
The bushing is an important main component of the power transformer, mainly plays roles of insulating against ground, supporting and carrying current of an outgoing line in the transformer, and has enough electrical and mechanical strength to ensure that the bushing can bear long-term load current in operation and bear instantaneous overheating in short circuit, namely good thermal stability. If the transformer bushing is defective or fails, the safe operation of the transformer and the power supply reliability thereof are directly endangered. The bushing end screen is mainly used for measuring the dielectric loss factor and the capacitance of the capacitor bushing and ensuring reliable grounding in operation after a layer of copper strip is wound on the outermost layer of aluminum foil and is led out through the small grounding bushing.
The common sleeve pipe end screen device kind is divided into three according to its ground connection mode mostly on the market at present, and the little sleeve pipe is drawn forth external, spring resilience ground connection and is grounded through the ground connection cap promptly, and use more one just with the sleeve pipe end screen of spring resilience ground connection, the end screen is drawn forth by drawing forth the post, and lead out copper sheathing that is connected with spring assembly of post overcoat is drawn forth, draws forth the copper sheathing and draws forth post in close contact with. The copper sleeve is led out in normal operation and is connected with the grounding metal flange on the inner side of the sleeve under the pressure of the internal spring so as to achieve reliable grounding, and the outermost part is provided with a metal sheath cover for screwing protection and a sealing gasket for sealing so as to prevent dust and moisture from entering.
However, in the using process of the sleeve end screen, a certain hidden danger exists, early warning detection cannot be carried out, the sleeve is still continuously used after the end screen or the sleeve is damaged, and the equipment is seriously damaged, for example, once the elasticity of a spring is weakened, the pushing force for leading out a copper sleeve is reduced, the contact area between the sleeve and a grounding flange is very easy to reduce, the leading-out copper sleeve is poor in contact, at the moment, a user is required to timely detect whether the leakage data of the sleeve is changed (namely, whether the sleeve is damaged due to abnormal use of the leading-out copper sleeve is required), if the detection is not timely, the sleeve is very easy to be seriously damaged due to high temperature or partial discharge and the like after long-time use.
Disclosure of Invention
Therefore, the embodiment of the invention provides a high-voltage bushing end screen device, which is used for solving the problems that early warning detection cannot be performed in the prior art, and when a copper bush is led out and has poor contact, if the detection is not performed in time, the high-voltage bushing end screen device is very easy to cause high temperature or partial discharge and the like after being used for a long time, so that the bushing is seriously damaged.
In order to achieve the above object, an embodiment of the present invention provides the following:
a high-voltage bushing end screen device comprises a base arranged on the side wall of a bushing and a leading-out column which is connected to the base in a penetrating mode, wherein a grounding early warning mechanism is connected to the side wall of one end, far away from the base, of the leading-out column, and an obstacle removing grounding cap connected with the base is sleeved on the outer side of the grounding early warning mechanism;
the ground early warning mechanism comprises an extraction terminal column connected with one end of the extraction column, which is far away from the sleeve, the side wall of the extraction terminal column is provided with an early warning detector for simultaneously detecting the temperature in the sleeve and in an obstacle removal grounding cap, the outer side of the extraction terminal column is sleeved with an obstacle removal spring, the end surface of the obstacle removal spring, which is far away from the base, is provided with an extraction copper sleeve sleeved on the side wall of the extraction terminal column, the side wall of one end of the extraction terminal column, which is far away from the base, is sleeved with a grounding flange connected with the extraction copper sleeve, and the obstacle removal grounding cap is sleeved on the outer side wall of the grounding flange and is connected with the base;
the obstacle-removing spring drives the lead-out copper sleeve to slide along the lead-out terminal column until the lead-out copper sleeve is connected with the surface of the grounding flange, so that the current of the sleeve is led into the ground, and the temperature in the sleeve and the temperature in the obstacle-removing grounding cap are obtained through the early warning detector.
As a preferable scheme of the invention, the early warning detector comprises a plurality of insertion strips sleeved on the side wall of one end, close to the base, of the leading-out terminal post, a temperature measuring post is connected in the insertion strips, the end part of the insertion strips penetrates through the base and extends into the sleeve, a plurality of temperature-insulating connection posts are installed at one end, far away from the sleeve, of the insertion strips, the obstacle removing spring is divided into a main bullet section and an auxiliary bullet section through the temperature-insulating connection posts, an isolation cover connected with the temperature-insulating connection posts is sleeved on the inner wall of the obstacle removing grounding cap, and a temperature detector connected with the isolation cover is installed on the outer side wall of the obstacle removing grounding cap.
As a preferred scheme of the invention, the insulation cover comprises a heat insulation ring sleeve which is sleeved on the inner wall of the obstacle-removing ground cap and is connected with the heat insulation connecting column, an accommodating ring groove is formed in the outer side wall of the heat insulation ring sleeve, a heat conduction column connected with the temperature measurement column is installed in the accommodating ring groove, and a heat conduction ring sleeve connected with the temperature detector is sleeved on the outer side of the heat conduction column.
As a preferable scheme of the invention, the obstacle-removing spring is provided with a blocking sleeve for blocking entry of impurities on the side wall of the main spring section, the blocking sleeve comprises a movable blocking sleeve connected with the side wall of the obstacle-removing spring, the side wall of the movable blocking sleeve is provided with a plurality of compression grooves with V-shaped longitudinal sections, and the numerical values of the depths of the plurality of compression grooves are set in a linear descending trend from one end close to the lead-out copper bush to one end far away from the lead-out copper bush.
As a preferable scheme of the invention, a plurality of copper sleeve straightening sheets are arranged on the surface of one side of the lead-out copper sleeve, which is far away from the grounding flange, and a straightening and obstacle removing device which is connected with the copper sleeve straightening sheets and used for pushing the lead-out copper sleeve to be tightly attached to the grounding flange is arranged on the inner side wall of the obstacle removing grounding cap;
the obstacle-removing grounding cap drives the position-correcting obstacle-removing device to move, and the leading-out copper sleeve is pushed by the moving position-correcting obstacle-removing device to press the grounding flange.
As a preferable scheme of the invention, the position correcting and fault removing device comprises a fault removing temperature detector and a corrector, wherein the fault removing temperature detector is used for detecting the temperature of the lead-out copper sleeve, and the position correcting and fault removing devices are annularly arranged on the inner wall of the fault removing grounding cap and correspond to the copper sleeve correcting sheets one by one.
As a preferable scheme of the invention, the copper sleeve straightening sheet comprises a heat conducting block connected with the leading-out copper sleeve, a pressing push sheet in a V-shaped structure is installed at one end of the heat conducting block away from the leading-out terminal column, an obstacle removing sheet is installed at one end of the pressing push sheet away from the heat conducting block, and a square through hole is formed in the surface of the pressing push sheet.
As a preferable scheme of the invention, the corrector comprises an inclined push spring sheet connected with the inner wall of the obstacle-removing grounding cap, and one end of the inclined push spring sheet, which is far away from the obstacle-removing grounding cap, is provided with a push rod for pushing and pressing the push sheet to move towards the lead-out copper sleeve and enabling the obstacle-removing sheet to be tightly attached to the grounding flange.
As a preferable scheme of the invention, the obstacle elimination thermoscope comprises a threaded sleeve which is connected to the side wall of the obstacle elimination grounding cap in a penetrating manner and a rotary sleeve which is connected with one end of the threaded sleeve far away from the leading-out terminal post, an expansion gas sleeve filled with expansion gas is installed in the threaded sleeve, a warning post of which the end part penetrates through the rotary sleeve is sleeved in the expansion gas sleeve, one end of the expansion gas sleeve close to the leading-out terminal post is connected with the surface of a pressing push sheet, one end of the expansion gas sleeve close to the leading-out terminal post is also provided with a push rod, the side wall of one end of the warning post far away from the expansion gas sleeve is provided with a spring pressing sheet which is connected with the inner wall of the rotary sleeve, and the rotary sleeve.
As a preferable scheme of the present invention, the pushing rod includes a correction column inserted into the square through hole, and a movable table connected to the inclined surface of the pressing push piece is installed at one end of the correction column away from the inclined push spring piece.
The embodiment of the invention has the following advantages:
the temperature in the lead-out copper sleeve and the sleeve can be simultaneously acquired through the warning column and the temperature detector, real-time early warning detection is carried out on the sleeve and the end screen according to the change of the temperature, so that the situation that the sleeve is seriously damaged is avoided, when the device is implemented, once the fault-removing grounding cap is connected with the base, the push rod can be clamped into the square through hole at the moment, the push piece is pushed, the lead-out copper sleeve can fully press the grounding flange, the situation that the normal use of the sleeve is influenced due to poor contact of the lead-out copper sleeve is avoided, in the daily use process, the temperature in the sleeve can be displayed on the temperature detector in real time, a user can safely and timely measure the leakage data of the high-voltage sleeve, and the situation that faults exist in the sleeve but are not detected in time is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a thermal insulation connection column according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a copper sheathing correction sheet according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an early warning detector according to an embodiment of the present invention;
FIG. 5 is a schematic view of a structure of a lead-out post according to an embodiment of the present invention;
FIG. 6 is a schematic view of an appliance according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a fault-elimination temperature detector according to an embodiment of the invention.
In the figure:
1-a grounding early warning mechanism; 2-obstacle-removing grounding cap; 3-an early warning detector; 4-an isolation cover; 5-a barrier sleeve; 6, aligning and removing the obstacle; 7-copper sheathing leveling plates; 8-obstacle-removing temperature detector; 9-a base;
101-a terminal post; 102-obstacle clearance springs; 103-a grounding flange; 104-a main bullet section; 105-a secondary projectile section; 106-leading out a copper sleeve;
301-an insert strip; 302-temperature measuring column; 303-insulating connecting column; 304-a temperature detector;
401-insulating ring sleeve; 402-a containment ring groove; 403-heat conducting columns; 404-heat conducting ring sleeve;
501-movable spacer bushes; 502-compression slots;
601-an orthotic; 602-obliquely pushing the elastic sheet; 603-a push rod; 604-a correction column; 605-a movable table;
701-a heat conducting block; 702-pressing the push sheet; 703-obstacle-removing sheet; 704-square through holes;
801-thread bush; 802-rotating sleeve; 803-expanding the air jacket; 804-warning post; 805-spring preforms; 806-through holes;
901-casing; 902-draw off the column.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides a high voltage bushing end screen device, which includes a base 9 installed on a sidewall of a bushing 901, and a leading-out post 902 connected to the base 9 in a penetrating manner, wherein a grounding early warning mechanism 1 is connected to a sidewall of one end of the leading-out post 902 far away from the base 9, and an obstacle-removing grounding cap 2 connected to the base 9 is sleeved outside the grounding early warning mechanism 1;
the grounding early warning mechanism 1 comprises an outgoing terminal column 101 connected with one end of the outgoing column 902 far away from a sleeve 901, a pin hole is formed in the outgoing terminal column 101, the structure of the outgoing terminal column is the same as that of an outgoing measurement terminal on a current end screen device, an early warning detector 3 for simultaneously detecting the temperature in the sleeve 901 and the temperature in an obstacle-removing grounding cap 2 is installed on the side wall of the outgoing terminal column 101, an obstacle-removing spring 102 with the end face connected with a base 9 is sleeved on the outer side of the outgoing terminal column 101, an outgoing copper sleeve 106 sleeved on the side wall of the outgoing terminal column 101 is installed at one end, far away from the base 9, of the obstacle-removing spring 102, a grounding flange 103 connected with the outgoing copper sleeve 106 is sleeved on the side wall of one end, far away from the base 9, of the outgoing terminal column 101, and a grounding flange 103, and the obstacle;
the obstacle-removing spring 102 drives the lead-out copper bush 106 to slide along the lead-out terminal column 101 until the lead-out copper bush is connected with the surface of the grounding flange 103, so that the current of the sleeve 901 is led into the ground, and the temperatures in the sleeve 901 and the obstacle-removing grounding cap 2 are obtained through the early warning detector 3.
This end screen device is the same with current end screen device principle when using when daily use, but this end screen device still possesses a monitoring function to judge in advance whether end screen device and intraduct have the trouble in real time, the person of facilitating the use can in time carry out the sleeve pipe detection operation, makes the user can judge the sheathed tube impaired condition in real time according to the data that detect.
When the bushing end screen device is used, a user can directly connect the obstacle-removing grounding cap 2 with the base 9 and fix the obstacle-removing grounding cap with the base 9 through screws, after the obstacle-removing grounding cap 2 and the base 9 are connected, the temperature inside the bushing 901 and on the lead-out copper bush 106 can be obtained in real time through the early warning detector 3, so that the user can know whether a fault exists in the bushing 901 or the lead-out copper bush 106 in time, when the user finds that the fault exists due to overhigh temperature, the electric leakage data of the end screen device can be detected, in the specific implementation, only the lead-out copper bush 106 is pushed to slide along the lead-out terminal column 101 and extrude the obstacle-removing spring 102, after the lead-out copper bush 106 slides to expose the plug hole on the lead-out terminal column 101, a plug can be inserted into the plug hole, so that a certain distance exists between the grounding flange 103 and the lead-out copper bush 106, then, the detection, the plug can be withdrawn to allow the barrier springs 102 to reset and thereby push the lead copper sleeve 106 against the grounding flange 103, thus achieving grounding operation.
As shown in fig. 1, fig. 2, fig. 5 and fig. 4, the early warning detector 3 includes a plurality of insertion bars 301 sleeved on the side wall of one end of the leading-out terminal column 101 close to the base 9, a temperature measuring column 302 is connected in the insertion bar 301, the end of the insertion bar 301 penetrates through the base 9 and extends into the casing 901, one end of the insertion bar 301 far away from the casing 901 is provided with a plurality of temperature-isolating connection columns 303, the obstacle removing spring 102 is divided into a main bullet section 104 and an auxiliary bullet section 105 through the temperature-isolating connection columns 303, the inner wall of the obstacle removing grounding cap 2 is sleeved with an insulating cover 4 connected with the temperature-isolating connection columns 303, the outer side wall of the obstacle removing grounding cap 2 is provided with a temperature detector 304 connected with the insulating cover 4, and the temperature detector 304 may be a common temperature control detector in the.
The early warning detector 3 can detect the temperature inside the casing 901, when the early warning detector is implemented, the temperature measuring column 302 inside the casing 901 can directly conduct the heat of the casing 901 to the heat insulation connecting column 303, and the heat is transferred to the insulation cover 4 through the heat insulation connecting column 303, then a user can detect the temperature inside the casing through the temperature detector 304, in order to avoid the situation that the lead-out copper bush 106 is in poor contact, the lead-out copper bush 106 can be pushed by the obstacle removing spring 102 to be tightly attached to the grounding flange 103, the main pushing area of the obstacle removing spring 102 is the main bullet section 104, the auxiliary bullet section 105 is a force accumulation area, once the main bullet section 104 has a fault, the auxiliary bullet section 105 can be properly released, the service life of the obstacle removing spring 102 is longer, and the lead-out copper bush 106 can be ensured to be tightly attached to the grounding flange 103 for a.
The specific structure of the thermal insulation connecting column 303 is as shown in fig. 2 and 5, and the two ends of the thermal insulation connecting column 303 are thin and the center is thick, so that when the barrier removal spring 102 passes through, the end part of the thermal insulation connecting column 303 can smoothly pass through, and is divided into two parts, namely a main spring section 104 and an auxiliary spring section 105.
As shown in fig. 1, 4 and 6, isolated cover 4 includes that the cover is established at the earth cap 2 inner wall of removing obstacles and with separate the temperature ring cover 401 that the connection post 303 is connected that separates temperature ring cover 401 has been seted up to the lateral wall that separates temperature ring cover 401 and has been held annular 402, hold and install the heat conduction post 403 of being connected with temperature measurement post 302 in the annular 402 the outside cover of heat conduction post 403 is equipped with the heat conduction ring cover 404 of being connected with thermodetector 304.
The isolation cover 4 is used for transferring heat absorbed by the temperature measuring column 302 to the temperature detector 304 for detection, and when the isolation cover is implemented, the heat absorbed by the temperature measuring column 302 is directly transferred to the plurality of heat conducting columns 403, and then is transferred to the heat conducting ring sleeve 404 through the plurality of heat conducting columns 403, so that the heat conducting ring sleeve 404 is rapidly heated up, and then a user can observe and check the temperature change condition through the temperature detector 304 connected with the heat conducting ring sleeve 404.
And the temperature detector 304 is not limited to this, but a detection mechanism for measuring current may be selected, and the receiving groove 402 may be used as a mounting groove.
As shown in fig. 1 and 4, the barrier removing spring 102 is provided with a barrier sleeve 5 for blocking entry of impurities on a side wall of the main spring section 104, the barrier sleeve 5 includes a movable spacer 501 connected with the side wall of the barrier removing spring 102, a plurality of compression grooves 502 with V-shaped longitudinal sections are provided on the side wall of the movable spacer 501, the depth values of the plurality of compression grooves 502 are set in a linearly decreasing trend from one end close to the lead-out copper bush 106 to one end far away from the lead-out copper bush 106, and the arrangement is such that the impurities are prevented from passing through the compression groove 502 area, which is specifically shown in fig. 1, 4 and 6.
In order to further reduce the probability of the fault of the lead-out copper bush 106, sundries can be prevented from entering the main spring section 104 through the blocking bush 5, and when the obstacle removing spring 102 is pressed, the movable blocking bush 501 is driven, so that the compression groove 502 is compressed, and the normal use of the movable blocking bush 501 is not affected.
As shown in fig. 1, 3, 4 and 6, a plurality of copper bush correcting sheets 7 are installed on one side surface of the lead-out copper bush 106 away from the grounding flange 103, and a position correcting and fault removing device 6 connected with the copper bush correcting sheets 7 and used for pushing the lead-out copper bush 106 to be tightly attached to the grounding flange 103 is installed on the inner side wall of the fault removing grounding cap 2;
the obstacle-removing grounding cap 2 drives the position-correcting obstacle-removing device 6 to move, and the lead-out copper bush 106 is pushed to tightly press the grounding flange 103 through the moving position-correcting obstacle-removing device 6.
As shown in fig. 1, 4 and 6, the position correcting and fault removing device 6 is composed of a fault removing temperature detector 8 for detecting the temperature of the lead-out copper bush 106 and a corrector 601, and a plurality of position correcting and fault removing devices 6 are annularly arranged on the inner wall of the fault removing grounding cap 2 and correspond to a plurality of copper bush correcting pieces 7 one by one, so that the arrangement is avoided.
The arrangement of the copper bush correcting piece 7 and the position correcting and fault removing device 6 can further reduce the fault condition of the lead-out copper bush 106, when a user covers the fault removing grounding cap 2, the corrector 601 and the fault removing temperature detector 8 can simultaneously clamp and push the copper bush correcting piece 7, so that the position of the fault removing grounding cap 2 is fixed, and meanwhile, the lead-out copper bush 106 is more fully contacted with the grounding flange 103.
As shown in fig. 1, 3, 4 and 6, the copper bush correction sheet 7 includes a heat conduction block 701 connected to the lead-out copper bush 106, a pressing push sheet 702 having a V-shaped structure is mounted at one end of the heat conduction block 701 away from the lead-out terminal post 101, an obstacle deflector 703 is mounted at one end of the pressing push sheet 702 away from the heat conduction block 701, and a square through hole 704 is formed in a surface of the pressing push sheet 702.
The corrector 601 comprises an inclined push spring piece 602 connected with the inner wall of the obstacle-removing grounding cap 2, and one end, far away from the obstacle-removing grounding cap 2, of the inclined push spring piece 602 is provided with a push rod 603 used for pushing the push piece 702 to move towards the lead-out copper sleeve 106 and enabling the obstacle-removing piece 703 to be tightly attached to the grounding flange 103.
The pushing rod 603 comprises a correction column 604 inserted into the square through hole 704, and a movable table 605 connected with the inclined surface of the pressing pushing sheet 702 is installed at one end of the correction column 604 far away from the inclined pushing spring sheet 602.
The copper bush correcting sheet 7 can play a role in correcting and pushing the lead-out copper bush 106, and simultaneously can enable the contact area between the lead-out copper bush 106 and the grounding flange 103 to be larger, when the copper bush correcting sheet is implemented, a user can cover the obstacle removing grounding cap 2 on the outer side of the temperature insulation ring sleeve 401 and push the obstacle removing grounding cap 2 to be attached to the surface of the base 9, in the moving process, the correcting column 604 can be directly clamped into the square through hole 704, then if the obstacle removing grounding cap 2 is continuously pushed, the correcting column 604 can be pushed by the pressing push sheet 702 to push the correcting column 604 and the inclined push sheet 602 to move together, then the inclined push sheet 602 can be gradually reset, so that the correcting column 604 and the pressing push sheet 702 are pushed to move together, the heat conduction block 701 and the lead-out copper bush 106 are pushed, then the lead-out copper bush 106 can be fully connected with the grounding flange 103, when the obstacle removing grounding cap 2 is connected with the base 9, the pressing push sheet 702 can be pushed to make the obstacle removing sheet 703 move together, until the fault removing sheet 703 is attached to the grounding flange 103, the grounding flange 103 will contact with the lead-out copper bush 106 and the fault removing sheet 703 at the same time, so that the grounding effect is better.
As shown in fig. 1, 4 and 7, the obstacle elimination thermoscope 8 includes a threaded sleeve 801 connected to a side wall of the obstacle elimination grounding cap 2 in a penetrating manner, and a rotary sleeve 802 connected to an end of the threaded sleeve 801 far from the leading-out terminal post 101, an expansion air sleeve 803 filled with expansion air (not limited to air or a thermal expansion body) is installed in the threaded sleeve 801, a warning post 804 whose end portion penetrates through the rotary sleeve 802 is sleeved in the expansion air sleeve 803, an end of the expansion air sleeve 803 near the leading-out terminal post 101 is connected to the surface of the push-down piece 702, a push rod 603 is also installed at an end of the expansion air sleeve 803 near the leading-out terminal post 101, a spring 805 connected to an inner wall of the push-down rotary sleeve 802 is installed on a side wall of an end of the warning post 804 far from the expansion air sleeve 803, and a through hole 806 for accommodating the warning post 804 is opened on the rotary sleeve 802.
When the obstacle-removing grounding cap 2 is fixed, the expansion air jacket 803 is tightly attached to the pressing push sheet 702, so that heat conducted by the pressing push sheet 702 from the heat-conducting block 701 directly transfers the heat into the expansion air jacket 803, so that expansion air in the expansion air jacket 803 expands, when the heat is heated to a large extent, the expansion amount of the expansion air is large, then the warning column 804 is pushed up to move towards one side far away from the expansion air jacket 803, then the movable spring pressing sheet 805 is pressed, when the movable warning column 804 fully presses the spring pressing sheet 805, the warning column 804 gradually slides out from the through hole 806, and at the moment, a user can know that the copper jacket 106 is led out to have a fault according to the warning column 804 extending out of the through hole 806.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The high-voltage bushing end screen device is characterized by comprising a base (9) arranged on the side wall of a bushing (901) and a leading-out column (902) connected to the base (9) in a penetrating mode, wherein the side wall of one end, far away from the base (9), of the leading-out column (902) is connected with a grounding early warning mechanism (1), and an obstacle-removing grounding cap (2) connected with the base (9) is sleeved on the outer side of the grounding early warning mechanism (1);
the grounding early warning mechanism (1) comprises an outgoing terminal column (101) connected with one end, far away from a sleeve (901), of the outgoing terminal column (902), an early warning detector (3) used for detecting the temperature in the sleeve (901) and in an obstacle-removing grounding cap (2) simultaneously is installed on the side wall of the outgoing terminal column (101), an obstacle-removing spring (102) with the end face connected with a base (9) is sleeved on the outer side of the outgoing terminal column (101), an outgoing copper sleeve (106) sleeved on the side wall of the outgoing terminal column (101) is installed at one end, far away from the base (9), of the obstacle-removing spring (102), an outgoing copper sleeve (106) sleeved on the side wall of the outgoing terminal column (101), a grounding flange (103) connected with the outgoing copper sleeve (106) is sleeved on the side wall of one end, far away from the base (9), of the obstacle-removing grounding cap (2) is sleeved on the outer side wall of;
the obstacle-removing spring (102) drives the lead-out copper sleeve (106) to slide along the lead-out terminal column (101) until the lead-out copper sleeve is connected with the surface of the grounding flange (103) so as to lead the current of the sleeve (901) into the ground, and the temperatures in the sleeve (901) and the obstacle-removing grounding cap (2) are obtained through the early warning detector (3).
2. A high voltage bushing tap device according to claim 1, wherein said early warning detector (3) comprises a plurality of insertion strips (301) sleeved on the side wall of the leading-out terminal post (101) near one end of the base (9), a temperature measuring column (302) with the end part penetrating through the base (9) and extending into the sleeve (901) is connected in the insert strip (301), one end of the insertion strip (301) far away from the sleeve (901) is provided with a plurality of heat-insulating connecting columns (303), the obstacle-removing spring (102) is divided into a main bullet section (104) and an auxiliary bullet section (105) through the heat-insulating connecting column (303), the inner wall of the obstacle-removing grounding cap (2) is sleeved with an isolation cover (4) connected with the thermal insulation connecting column (303), and a temperature detector (304) connected with the isolation cover (4) is arranged on the outer side wall of the obstacle-removing grounding cap (2).
3. The high-voltage bushing end screen device according to claim 2, wherein the insulating cover (4) comprises a heat-insulating ring sleeve (401) sleeved on the inner wall of the obstacle-removing grounding cap (2) and connected with a heat-insulating connecting column (303), a containing ring groove (402) is formed in the outer side wall of the heat-insulating ring sleeve (401), a heat-conducting column (403) connected with the temperature-measuring column (302) is installed in the containing ring groove (402), and a heat-conducting ring sleeve (404) connected with the temperature detector (304) is sleeved on the outer side of the heat-conducting column (403).
4. The high-voltage bushing end screen device according to claim 1, wherein the barrier removing spring (102) is provided with a barrier sleeve (5) for blocking entry of impurities on a side wall of the main spring section (104), the barrier sleeve (5) comprises a movable barrier sleeve (501) connected with the side wall of the barrier removing spring (102), a plurality of compression grooves (502) with V-shaped longitudinal sections are arranged on the side wall of the movable barrier sleeve (501), and the numerical values of the depths of the plurality of compression grooves (502) are set in a linear decreasing trend from one end close to the lead-out copper sleeve (106) to one end far away from the lead-out copper sleeve (106).
5. The high-voltage bushing end screen device as claimed in claim 1, wherein a plurality of copper bushing correcting sheets (7) are installed on one side surface of the lead-out copper bushing (106) far away from the grounding flange (103), and a position correcting and fault removing device (6) which is connected with the copper bushing correcting sheets (7) and used for pushing the lead-out copper bushing (106) to be tightly attached to the grounding flange (103) is installed on the inner side wall of the fault removing grounding cap (2);
the obstacle-removing grounding cap (2) drives the position-correcting obstacle-removing device (6) to move, and the lead-out copper sleeve (106) is pushed to tightly press the grounding flange (103) through the moved position-correcting obstacle-removing device (6).
6. The high-voltage bushing end screen device as claimed in claim 5, wherein the position correcting and fault removing device (6) comprises a fault removing temperature detector (8) for detecting the temperature of the lead-out copper bushing (106) and a corrector (601), and a plurality of position correcting and fault removing devices (6) are annularly arranged on the inner wall of the fault removing grounding cap (2) and correspond to a plurality of copper bushing correcting sheets (7) one by one.
7. The high-voltage bushing end screen device according to claim 5, wherein the copper sleeve correcting sheet (7) comprises a heat conducting block (701) connected with the leading-out copper sleeve (106), a pressing push sheet (702) in a V-shaped structure is installed at one end of the heat conducting block (701) far away from the leading-out terminal column (101), an obstacle removing sheet (703) is installed at one end of the pressing push sheet (702) far away from the heat conducting block (701), and a square through hole (704) is formed in the surface of the pressing push sheet (702).
8. The high voltage bushing end screen device according to claim 6, wherein the corrector (601) comprises an inclined push spring piece (602) connected with the inner wall of the obstacle-removing grounding cap (2), and a push rod (603) for pushing the push piece (702) to move towards the lead-out copper sleeve (106) and enabling the obstacle-removing piece (703) to cling to the grounding flange (103) is installed at one end of the inclined push spring piece (602) far away from the obstacle-removing grounding cap (2).
9. The high-voltage bushing end screen device according to claim 6, wherein the fault-removing temperature detector (8) comprises a threaded sleeve (801) penetrating and connected to the side wall of the fault-removing grounding cap (2) and a rotating sleeve (802) connected to one end of the threaded sleeve (801) far away from the leading-out terminal post (101), an expansion air sleeve (803) filled with expansion gas is installed in the threaded sleeve (801), a warning post (804) with an end penetrating through the rotating sleeve (802) is sleeved in the expansion air sleeve (803), one end of the expansion air sleeve (803) close to the leading-out terminal post (101) is connected to the surface of the pressing push piece (702), one end of the expansion air sleeve (803) close to the leading-out terminal post (101) is also provided with a push rod (603), one end of the warning post (804) far away from the expansion air sleeve (803) is provided with a spring pressing piece (805) connected to the inner wall of the rotating sleeve (802), the rotating sleeve (802) is provided with a through hole (806) for accommodating the sliding of the warning post (804).
10. The high voltage bushing end screen device according to claim 9, wherein the pushing rod (603) comprises a correction column (604) inserted into the square through hole (704), and a movable table (605) connected with the inclined surface of the pressing push plate (702) is installed at one end of the correction column (604) far away from the inclined push spring plate (602).
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| CN202010695652.7A CN111599584B (en) | 2020-07-20 | 2020-07-20 | High-voltage bushing end screen device |
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| CN202010695652.7A CN111599584B (en) | 2020-07-20 | 2020-07-20 | High-voltage bushing end screen device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114220641A (en) * | 2021-12-15 | 2022-03-22 | 江苏临海电气有限公司 | Dry-type transformer with ground point contact state detects |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2202978Y (en) * | 1994-08-31 | 1995-07-05 | 湖南电力电瓷电器厂 | Final-screen automatic grounding protector |
| CN201975689U (en) * | 2011-01-28 | 2011-09-14 | 北京仪能科思科技发展有限公司 | Novel high voltage equipment bushing tap grounding device |
| EP3026689A1 (en) * | 2014-11-27 | 2016-06-01 | Tyco Electronics UK Limited | High voltage circuit breaker, system, vacuum interruter module, and associated drive module |
| CN207282278U (en) * | 2017-08-15 | 2018-04-27 | 广西电网有限责任公司电力科学研究院 | Condenser bushing end shield earthing or grounding means |
| CN110208637A (en) * | 2019-06-20 | 2019-09-06 | 国网天津市电力公司电力科学研究院 | A kind of isolated on-Line Monitor Device and its method of DC bushing end shield ground connection |
| CN210865857U (en) * | 2019-11-18 | 2020-06-26 | 广西电网有限责任公司电力科学研究院 | Sleeve pipe end screen earthing device |
-
2020
- 2020-07-20 CN CN202010695652.7A patent/CN111599584B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2202978Y (en) * | 1994-08-31 | 1995-07-05 | 湖南电力电瓷电器厂 | Final-screen automatic grounding protector |
| CN201975689U (en) * | 2011-01-28 | 2011-09-14 | 北京仪能科思科技发展有限公司 | Novel high voltage equipment bushing tap grounding device |
| EP3026689A1 (en) * | 2014-11-27 | 2016-06-01 | Tyco Electronics UK Limited | High voltage circuit breaker, system, vacuum interruter module, and associated drive module |
| CN207282278U (en) * | 2017-08-15 | 2018-04-27 | 广西电网有限责任公司电力科学研究院 | Condenser bushing end shield earthing or grounding means |
| CN110208637A (en) * | 2019-06-20 | 2019-09-06 | 国网天津市电力公司电力科学研究院 | A kind of isolated on-Line Monitor Device and its method of DC bushing end shield ground connection |
| CN210865857U (en) * | 2019-11-18 | 2020-06-26 | 广西电网有限责任公司电力科学研究院 | Sleeve pipe end screen earthing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114220641A (en) * | 2021-12-15 | 2022-03-22 | 江苏临海电气有限公司 | Dry-type transformer with ground point contact state detects |
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| CN111599584B (en) | 2020-10-23 |
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