CN116413542A - Transformer residual life detection device under fluctuation load - Google Patents
Transformer residual life detection device under fluctuation load Download PDFInfo
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- CN116413542A CN116413542A CN202310396668.1A CN202310396668A CN116413542A CN 116413542 A CN116413542 A CN 116413542A CN 202310396668 A CN202310396668 A CN 202310396668A CN 116413542 A CN116413542 A CN 116413542A
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- 238000001514 detection method Methods 0.000 title claims abstract description 37
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052802 copper Inorganic materials 0.000 claims abstract description 46
- 239000010949 copper Substances 0.000 claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 229910052573 porcelain Inorganic materials 0.000 claims description 25
- 239000001307 helium Substances 0.000 claims description 21
- 229910052734 helium Inorganic materials 0.000 claims description 21
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000004804 winding Methods 0.000 claims description 5
- 244000309464 bull Species 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 39
- 238000004364 calculation method Methods 0.000 description 11
- 239000007789 gas Substances 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/32—Measuring temperature based on the expansion or contraction of a material the material being a fluid contained in a hollow body having parts which are deformable or displaceable
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Abstract
The invention relates to the technical field of transformer detection, in particular to a residual life detection device for a transformer under fluctuating load, which comprises a detection machine body, wherein a spiral slide rheostat body is connected in the detection machine body, a wiring lug is connected to the spiral slide rheostat body, a copper sheet connection base for outgoing lines is connected to the inside of the wiring lug, a turntable is connected to the spiral slide rheostat body in a transmission way, a gear is connected to the turntable through a connecting rod, a temperature curve display board is meshed on the surface of the gear, and a temperature change curve display device is arranged in the detection machine body. According to the invention, load fluctuation is simulated through fluctuation of the internal resistance value of the spiral slide rheostat, so that the effect of conveniently detecting the residual life of the transformer under the fluctuation load is achieved, the accuracy of calculating the residual life of the transformer under the fluctuation load is improved, and the temperature change curves of the oil top and the oil bottom in the transformer are recorded through the temperature curve display board.
Description
Technical Field
The invention relates to the technical field of transformer detection, in particular to a device for detecting the residual life of a transformer under a fluctuating load.
Background
The transformer has the main functions of voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer) and the like, is basic equipment for power transmission and distribution, is widely applied to the fields of industry, agriculture, traffic, urban communities and the like, and consists of an iron core or a magnetic core and coils, wherein the coils are provided with two or more windings, the winding connected with a power supply is called a primary coil, the other windings are called secondary coils, and the transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction.
In order to improve the intelligentization, safety and operation and maintenance efficiency of a transformer station area, the residual life of a transformer of an aging model is required to be detected, the life of the transformer is mainly determined by temperature indexes and half differences obtained by extrapolation of an adopted insulation system according to an Arrhenius equation, and meanwhile, the life loss of insulation materials in the service life of the transformer is reduced by carrying out thermal calculation on normal load conditions and environment temperature rise.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a device for detecting the residual life of a transformer under a fluctuating load, which solves the problems in the prior art. In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a transformer residual life detection device under fluctuation load, includes detects the organism, the inside of detecting the organism is connected with the transformer body, the inside fixedly connected with spiral slide rheostat body of detecting the organism, the fixed surface of spiral slide rheostat body is connected with the lug, the inside of lug is through electric wire fixedly connected with copper sheet connection base for being qualified for next round of competitions, the tip of spiral slide rheostat body is connected with the carousel through belt drive, the inside fixedly connected with connecting rod of carousel, the one end fixedly connected with gear that the connecting rod kept away from the carousel, the surface engagement of gear has the temperature curve show board, the inside of detecting the organism is provided with temperature change curve display device;
the temperature change curve display device comprises a helium box, wherein the surface of the helium box is fixedly connected with the inside of a transformer body, a plug plate is connected with the inside of the helium box through a spring, the top end of the plug plate is fixedly connected with a sleeve rod through a sliding rod, and the inside of the sleeve rod is elastically connected with a pen holder through a spring.
Preferably, the spiral slide rheostat body comprises a spiral cylinder, one end of the spiral cylinder is fixedly connected with the inside of the detection machine body, the spiral cylinder is fixedly connected with a spiral porcelain body, a resistance wire is wound on the surface of the spiral porcelain body, the other end of the spiral cylinder is rotationally connected with a connecting disc cylinder, the surface of the connecting disc cylinder is fixedly connected with a limiting rod, and the surface of the limiting rod is slidably connected with a sliding ferrule.
Preferably, one end of the connecting disc column far away from the spiral cylinder is connected with the surface of the rotary disc through belt transmission, a sliding rod is fixedly connected to the inside of the sliding ferrule, a resistance wire wound on the surface of the spiral porcelain body is connected to the surface of the sliding rod, a connecting block is connected to the surface of the sliding ferrule in a rotating mode, and a positioning rod is connected to the inside of the connecting block in a sliding mode.
Preferably, the surface fixedly connected with copper circle of slip lasso, the inside fixedly connected with copper sheet of connecting block, the tip fixed connection of locating lever detects the inside of organism.
Preferably, the bottom of the copper sheet connection base for outgoing lines is fixedly connected with the low-voltage end of the transformer body, the top of the temperature curve display board is slidably connected with a positioning seat, and the end part of the positioning seat is fixedly connected with the inside of the detection machine body.
Preferably, the surface of connecting rod rotates and is connected with the speed reduction base, the fixed surface of connecting rod is connected with the spiral spring, the inside of fixed connection speed reduction base is held to the link of spiral spring, the inside of speed reduction base and the equal fixedly connected with speed reduction strip of surface of connecting rod, the inside of speed reduction base's fixed surface connection detection organism.
Preferably, the temperature change curve display device further comprises a driving motor, a fan and a heating pipe, wherein the surface of the driving motor is fixedly connected with the top of the detection machine body, an output shaft of the driving motor is connected with a rotating rod in a clamping mode, the bottom end of the rotating rod is fixedly connected with a friction rotating column through a rod, the surface of the rotating rod is fixedly connected with a toothed arm rod, and the surface of the toothed arm rod is meshed with an air outlet control disc.
Preferably, the surface fixed connection of fan detects the top of organism, the surface fixed connection of heating pipe detects the top of organism, the surface rotation of bull stick detects the inside of organism, the inside of detecting the organism is connected in the rotation of apopore control panel bottom.
Preferably, the top end and the bottom end of the friction force rotating column are respectively provided with an intermittent groove and a yielding groove, and the surface of the friction force rotating column is connected with the surface of the temperature curve display board.
Preferably, the inside fixedly connected with spacing base of detection organism, the base is connected with the copper sheet for the inlet wire through spring elastic connection to the bottom of spacing base, the high-voltage end of the transformer body is connected with the bottom of base is connected with the copper sheet for the inlet wire, the inside of the spacing base of pole sliding connection is passed through at the top of base is connected with the copper sheet for the inlet wire, one side fixedly connected with depression bar that the base is close to friction power revolving column is connected with to the copper sheet for the inlet wire.
It can be seen from the above technical scheme that the device for detecting the residual life of the transformer under the fluctuating load provided by the embodiment of the specification has at least the following beneficial effects:
(1) According to the invention, the resistance value of the spiral slide rheostat body is controlled to continuously change and fluctuate, so that the effect of simulating load fluctuation is achieved, and the effect of conveniently detecting the residual life of the transformer under the fluctuation load is achieved, so that the accuracy of calculating the residual life of the transformer under the fluctuation load is improved, and the calculation result is more approximate to the result in actual application; the sliding rod on the temperature control plug board drives the pen holder in the sleeve rod to move and draws the movement track on the moving temperature curve display board, so that the effect of the temperature change curve of the oil top and the oil bottom in the transformer can be directly observed in the period of detecting the residual life of the transformer.
(2) According to the invention, the heating pipe is used for heating the gas at the top of the machine body, the fan conveys the heated gas into the transformer, the gas flows out from the superposition of the inner groove of the air outlet control disc and the top groove of the machine body, the heating treatment is carried out in the machine body, the rotating rod drives the gear arm rod to be meshed with the air outlet control disc, so that the air outlet control disc is driven to carry out angle adjustment, the area of the air outlet is controlled during the adjustment period, the effect of adjusting the temperature is achieved, the effect of detecting and calculating the residual life of the transformer in load fluctuation under different temperature environments is met, and the accuracy of life calculation is improved.
(3) According to the invention, the connecting disc is driven by the turntable on the connecting rod through the elasticity control connecting rod of the scroll spring, and the disc drives the sliding rod in the sliding ferrule to reversely slide and contact with the resistance wire on the spiral porcelain body through the limiting rod, so that the resistance value in the spiral sliding rheostat body reversely fluctuates, the effect of controlling the internal resistance value of the spiral sliding rheostat body to continuously fluctuate is achieved, and the effects of isolating the temperature curve change in the transformer under the condition of fluctuating load in three time periods are further achieved by combining the three modes of concave, convex and concave of the temperature curve display plate, so that an operator can more simply observe the temperature change curve.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application:
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of a helium tank according to the present invention;
fig. 3 is a schematic view of a spiral sliding rheostat structure according to the present invention;
FIG. 4 is a schematic cross-sectional view of a sliding ferrule according to the present invention;
FIG. 5 is a schematic view of the structure of the rotating rod in the present invention;
FIG. 6 is a schematic view of a friction rotor structure according to the present invention;
FIG. 7 is a schematic view of a structure of a limiting base in the present invention;
FIG. 8 is a schematic diagram of a cross-sectional structure of a detecting body according to the present invention;
fig. 9 is a schematic diagram of a connection structure of copper sheets for connection of copper sheets for wire incoming to the inside of the base.
In the figure: 1. detecting a machine body; 2. a transformer body; 3. a spiral slide rheostat body; 31. a spiral cylinder; 32. a spiral porcelain body; 33. connecting disc columns; 34. a limit rod; 35. sliding the ferrule; 36. a slide bar; 37. a connecting block; 38. a positioning rod; 4. a wire connection piece; 5. the outgoing line is connected with the base through a copper sheet; 6. a turntable; 7. a connecting rod; 8. a gear; 9. a temperature curve display board; 10. a temperature change curve display device; 101. a helium tank; 102. a plug plate; 103. a slide bar; 104. a loop bar; 105. a penholder; 106. an active motor; 107. a rotating rod; 108. a friction rotating column; 1081. an intermittent tank; 1082. a relief groove; 109. a tooth arm lever; 110. an air outlet control panel; 111. a blower; 112. heating pipes; 11. a positioning seat; 12. a deceleration base; 13. a spiral spring; 14. a deceleration strip; 15. a limit base; 16. the incoming wire is connected with the base through a copper sheet; 17. and (5) pressing the rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 9, the present invention provides the following technical solutions:
the utility model provides a transformer residual life detection device under fluctuation load, including detecting organism 1, detecting organism 1's inside is connected with transformer body 2, detecting organism 1's inside fixedly connected with spiral slide rheostat body 3, spiral slide rheostat body 3's surface fixedly connected with lug 4, lug 4's inside is through electric wire fixedly connected with copper sheet connection base 5 for the outgoing line, copper sheet connection base 5 inside for the outgoing line is connected with four groups of electric wires of cable, utilize copper sheet and transformer low pressure's four groups of outlet terminal contact, reach the effect of electric wire and end indirect connection, guarantee the outflow of transformer voltage, spiral slide rheostat body 3's tip is connected with carousel 6 through belt drive, carousel 6's inside fixedly connected with connecting rod 7, carousel 6's one end fixedly connected with gear 8, gear 8's surface engagement has temperature curve show board 9, detecting organism 1's inside is provided with temperature change curve show device 10, through adjusting transformer outlet terminal electric wire connection's spiral slide rheostat 3, make the resistance value constantly change, reach the effect of simulated load fluctuation, and then be convenient for the transformer under the fluctuation load is measured, the accurate life-span of life of fluctuation is calculated in the transformer under the fluctuation, thereby the actual load is calculated to the residual life of fluctuation, the result is more accurate, the transformer is calculated;
the temperature change curve display device 10 comprises a helium tank 101, helium is filled in the helium tank 101, the helium has the function of thermal expansion and contraction, meanwhile, the stability is higher, reaction explosion is not easy to occur between the helium and substances in the air, as shown in fig. 2, the helium tank 101 is arranged in two parts, namely an oil top part and an oil bottom part in a transformer, the two parts are respectively fixed at the oil top part and the oil bottom part in the transformer and are used for carrying out temperature reaction on the oil top part and the oil bottom part in the transformer, the surface of the helium tank 101 is fixedly connected with the inside of a transformer body 2, the inside of the helium tank 101 is connected with a plug plate 102 through a spring, a plug plate 102 is in piston connection with the inner wall of the helium tank 101, the helium is positioned in a lower area of the plug plate 102, when the temperature in the transformer rises, according to the principle of thermal expansion and contraction, the helium achieves the effect of pushing the plug plate 102 to slide upwards during active movement, the top end of the plug plate 102 is fixedly connected with a sleeve rod 104 through a sliding rod 103, the inside of the sleeve rod 104 is elastically connected with a pen holder 105, the pen holder 105 is driven by the sliding rod 103 to carry out high change on the parts in the oil top part in the transformer 104 when the plug plate 102 moves, the pen holder 105 moves, the temperature trace is drawn on the moving on the inner part 9, the bottom part of the transformer is directly, the temperature change is detected in the transformer, and the temperature change is directly detected in the transformer, and the transformer is displayed, and the temperature change is directly at the bottom part is detected, and the temperature change is detected in the transformer temperature change inside the transformer; the surface of the temperature curve display board 9 is set to be in a concave, convex and concave state, so that the effect of isolating the temperature curve change of the three time periods is further achieved, an operator can observe the temperature change curve more simply, and the pen holder 105 which is elastically connected has the functions of elastically yielding and resetting, so that the line drawing is conveniently carried out on the temperature curve display board 9 with the concave and convex surfaces.
The service life of the transformer is mainly determined by an adopted insulation system, a temperature index and a half difference are extrapolated according to an Arrhenius equation, meanwhile, thermal calculation is carried out on normal load conditions and environment temperature rise to convert service life loss of insulation materials in service life of the transformer, under the condition of fluctuating load, the hot spot temperature of the transformer is equal to the sum of the environment temperature, the temperature rise of the top oil level of the oil tank relative to the environment temperature and the temperature rise of the hot spot position relative to the top oil level of the oil tank, during detection, the hot spot temperature, the oil top temperature and the oil bottom temperature corresponding to the transformer are collected, a large amount of temperature and load data are obtained through testing, an equivalent model between the hot spot temperature and the oil top/oil bottom temperature is found out, finally, a prediction method of the residual service life of the transformer under fluctuating load is formed through a singlechip software algorithm, and the calculation of the residual service life of the transformer is completed.
In this embodiment, the spiral sliding rheostat body 3 includes a spiral cylinder 31, one end of the spiral cylinder 31 is fixedly connected with the inside of the detection machine body 1, the inside of the spiral cylinder 31 is fixedly connected with a spiral porcelain body 32, a resistance wire is wound on the surface of the spiral porcelain body 32, the spiral porcelain body 32 is different from a traditional straight cylinder porcelain cylinder, under the same length, the resistance wire is wound in a spiral form, the winding area and the length of the resistance wire are improved, the range of the internal resistance value change of the rheostat is improved, the environment simulation of fluctuating load is facilitated for a transformer, the accuracy of calculating the residual life of the transformer under the fluctuating load is improved, the other end of the spiral cylinder 31 is rotationally connected with a connecting disc column 33, the surface of the connecting disc column 33 is fixedly connected with a limit rod 34, the surface of the limit rod 34 is slidingly connected with a sliding ferrule 35, and the spiral sliding rheostat body 3 changes the resistance of the self, thereby playing a role of a control circuit.
Further, one end of the connecting disc column 33 far away from the spiral column 31 is connected with the surface of the rotary disc 6 through belt transmission, a sliding rod 36 is fixedly connected to the inside of the sliding ring 35, the surface of the sliding rod 36 is connected with a resistance wire wound on the surface of the spiral porcelain body 32, the effect of adjusting the resistance value of the spiral sliding rheostat body 3 is achieved through the contact between the sliding rod 36 and the resistance wire on the spiral porcelain body 32, the existing sliding rheostat comprises five parts, namely a binding post, a sliding sheet, a resistance wire, a metal rod and a porcelain barrel, the sliding rod 36 on the sliding ring 35 corresponds to the sliding sheet in the sliding rheostat, the spiral porcelain body 32 corresponds to the porcelain barrel, the surface of the sliding ring 35 is rotationally connected with a connecting block 37, the connecting block 37 corresponds to the binding post, and the inside of the connecting block 37 is slidingly connected with a positioning rod 38; the fixed surface of slip lasso 35 is connected with the copper circle, and slip lasso 35 is when the inside rotation of connecting block 37, and the surface contact of copper circle is connected with the surface contact of copper sheet, the inside fixedly connected with copper sheet of connecting block 37 to reach the slip lasso 35 when rotating, the connecting block 37 is convenient for outside effect of wiring use through the connection of copper material, and the inside of locating lever 38's tip fixed connection detects organism 1 for carry out spacing connection to connecting block 37, the top of connecting block 37 is provided with the wiring mouth, the wiring of being convenient for uses.
Furthermore, the copper sheet for outgoing line is connected with the low-voltage end of the transformer body 2 at the bottom of the base 5, the top of the temperature curve display board 9 is slidably connected with a positioning seat 11, the end part of the positioning seat 11 is fixedly connected with the inside of the detection machine body 1, and the positioning seat 11 is used for limiting and connecting the temperature curve display board 9, so that the movement track of the temperature curve display board is ensured to perform linear operation.
It is worth noting that the surface of the connecting rod 7 is rotationally connected with the speed reducing base 12, the surface of the connecting rod 7 is fixedly connected with the spiral spring 13, the purpose that the connecting rod 7 can reset and rotate according to elasticity after unidirectional rotation is achieved by arranging the spiral spring 13, the connecting rod 7 drives the connecting disc column 33 through a belt on the rotary disc 6, the disc column drives the sliding rod 36 in the sliding sleeve 35 to slide on the resistance wire on the spiral porcelain 32 through the limiting rod 34, the effect of changing self resistance is achieved, the effect of a control circuit is achieved, the resistance value in the spiral sliding rheostat 3 is caused to unidirectionally fluctuate, the arrangement of the spiral spring 13 controls the connecting rod 7 to drive the connecting disc column 33 connected with the belt of the rotary disc 6 to reset and rotate, the disc column drives the sliding rod 36 in the sliding sleeve 35 to reversely slide on the spiral porcelain 32 through the limiting rod 34, the inside resistance of the spiral slide rheostat body 3 is made to reversely fluctuate, thereby achieving the effect of controlling the continuous fluctuation of the internal resistance of the spiral slide rheostat body 3, simulating load fluctuation, further achieving the effect of being convenient for detecting the residual life of a transformer under fluctuation load, the connecting end of the spiral spring 13 is fixedly connected with the inside of the speed reduction base 12, the inside of the speed reduction base 12 and the surface of the connecting rod 7 are fixedly connected with the speed reduction strip 14, the effect of reducing the speed of the reset rotating connecting rod 7 is achieved by arranging the speed reduction strip 14, the problem that the fluctuation time of the resistance of the spiral slide rheostat body 3 is influenced by the rapid reverse rotation of the connecting rod 7 due to the influence of elasticity is avoided, and the surface of the speed reduction base 12 is fixedly connected with the inside of the detection machine body 1.
It should be noted that, the temperature change curve display device 10 further includes an active motor 106, a fan 111 and a heating pipe 112, the heating pipe 112 is used for heating the gas at the top of the machine body, the fan 111 is used for conveying the heated gas into the transformer, so that the heated gas can simulate the environment in summer to detect the residual life of the transformer under the fluctuation load, the surface of the active motor 106 is fixedly connected with the top of the detection machine body 1, the output shaft of the active motor 106 is clamped with a rotating rod 107, the bottom end of the rotating rod 107 is fixedly connected with a friction rotating column 108 through the rod, the surface of the rotating rod 107 is fixedly connected with a toothed arm 109, and the surface of the toothed arm 109 is meshed with an air outlet control disc 110; the top of fan 111's fixed surface connection detects organism 1, the motor passes through bull stick 107 drive tooth armed lever 109 meshing exhaust vent control panel 110, thereby drive exhaust vent control panel 110 and carry out intermittent type nature angle modulation, exhaust vent corresponding with organism top is seted up to the inside of exhaust vent control panel 110, reach the effect of controlling the whole venthole volume of exhaust vent through the coincident area of control two grooves, carry out the exhaust vent control panel 110 of automatic rotation regulation and reach the effect of controlling the steam volume, the steam output of different contents reaches the effect of carrying out different temperature heating to the organism inside, thereby satisfy the effect of carrying out surplus life detection calculation to the transformer in the load fluctuation under different temperature environment, improve life calculation's accuracy, the fixed surface connection of heating pipe 112 detects the top of organism 1, the inside of organism 1 is detected in the surface rotation connection of bull stick 107, the inside of organism 1 is detected in the rotation connection of exhaust vent control panel 110 bottom.
In addition, the top end and the bottom end of the friction force rotating column 108 are respectively provided with an intermittent groove 1081 and a yielding groove 1082, the intermittent groove 1081 is used for temporarily disconnecting the connection between the friction force rotating column 108 and the temperature curve display plate 9, the friction force rotating column 108 contacts the temperature curve display plate 9 through frosted protruding points, the temperature curve display plate 9 is driven to perform linear motion when the friction force rotating column 108 rotates through friction force, the effect of automatically feeding the temperature curve display plate 9 is achieved, the temperature curve display plate 9 is combined with a curve display of temperature change of a penholder 105 during movement, the position of the intermittent groove 1081 corresponds to the position of a tooth arm rod 109, the temperature of the air outlet control plate 110 is regulated when the temperature curve display plate 9 does not move, the temperature is regulated after the resistance of the spiral slide rheostat body 3 is subjected to one period of fluctuation, the temperature of a periodic resistance fluctuation transformer is conveniently detected at different temperatures, and the surface of the friction force rotating column 108 is connected with the surface of the temperature curve display plate 9; the inside of the detection machine body 1 is fixedly connected with a limit base 15, the bottom of the limit base 15 is elastically connected with a copper sheet for wire inlet connection base 16 through a spring, the bottom of the copper sheet for wire inlet connection base 16 is connected with a high-voltage end of the transformer body 2, the top of the copper sheet for wire inlet connection base 16 is externally connected with a cable through a connector, three groups of wires of the cable are connected with the copper sheet at the bottom end, the effect of contacting the wires with a high-voltage terminal is achieved by utilizing the contact of the copper sheet with the three groups of high-voltage wire inlet ends of the transformer, and the operation of the transformer is ensured; the depression bar 17 is pushed down by friction power revolving post 108 under the normality, the copper sheet of the inlet wire connection base 16 bottom copper sheet contact transformer high pressure end this moment, when the position of intermittent type groove 1081 corresponds the position of temperature curve show board 9, the position of the groove 1082 corresponds the position of depression bar 17, the copper sheet connection base 16 for the inlet wire upwards removes through elasticity, lose the connection with the transformer after removing for the transformer pause work, adjust the temperature during pause work, adjust the temperature back transformer, varistor and show board are operated, further reach and avoid when temperature regulation, the transformer carries out work influence residual life detection and calculate's effect, the copper sheet connection base 16 for the inlet wire top passes through the inside of pole sliding connection spacing base 15, the copper sheet connection base 16 for the inlet wire is close to one side fixedly connected with depression bar 17 of friction power revolving post 108.
When the residual life detection device for the transformer under the fluctuating load is used, the transformer is installed into the detection machine body 1 to be fixed, the high-voltage wire inlet end of the transformer is in contact connection with the bottom of the wire inlet copper sheet connection base 16, the top of the wire inlet copper sheet connection base 16 is externally connected with a cable through a connector, three groups of wires of the cable are connected with the bottom copper sheet, the contact of the copper sheet with the three groups of high-voltage wire inlet ends of the transformer is utilized to achieve the effect of contacting the wires with the high-voltage terminal, the operation of the transformer is ensured, the copper sheet in the wire inlet copper sheet connection base 5 is connected with four groups of wires of the cable, the effect of indirectly connecting the wires with the end is achieved by utilizing the copper sheet to be connected with the low-voltage four groups of wire outlet ends of the transformer, the continuous change of the internal resistance value of the spiral sliding rheostat body 3 connected with the wire outlet end of the transformer is achieved, the effect of simulating load fluctuation is achieved, and the residual life detection effect of the transformer under the fluctuating load is facilitated;
by starting the driving motor 106, the heating pipe 112 and the fan 111, the heating pipe 112 is used for heating the gas at the top of the machine body, the fan 111 conveys the heated gas into the transformer, the gas flows out from the superposition of the inner groove of the air outlet control disc 110 and the top groove of the machine body, the heating treatment is carried out in the machine body, the output shaft of the motor drives the temperature curve display plate 9 contacted on the friction rotary column 108 to move through the rotating rod 107, the temperature curve display plate 9 drives the rotary disk 6 on the connecting rod 7 to rotate through the meshed gear 8 at the top, the rotary disk 6 drives the limit rod 34 to rotate through the belt to drive the connecting disk column 33, the limit rod 34 drives the sliding ferrule 35 to be in threaded connection on the spiral cylinder 31, the sliding ferrule 35 drives the sliding rod 36 to spirally rotate along the shape track of the spiral porcelain 32, and is contacted with the resistance wire on the spiral porcelain 32 in contact, so that the resistance value continuously changes and fluctuates, the effect of simulating load fluctuation is achieved, and the effect of conveniently detecting the residual life of the transformer under the fluctuation load is improved, the accuracy of calculation of the residual life of the transformer under the load is improved, after the temperature curve display plate 9 moves a distance, the temperature curve display plate is in contact with the rotating plate 8, the elastic force of the connecting rod 6 drives the rotary disk 6 to rotate through the elastic force of the connecting rod 6, the elastic force control rod 33 to reversely slides on the spiral porcelain body 3, and drives the spiral porcelain body to slide rod 36 to slide through the resistance wire to reversely slide on the spiral porcelain body 32, so that the resistance rod 3, and the resistance value slides on the spiral porcelain rod 3, so that the resistance rod is in contact with the resistance rod 3, so that the effect continuously fluctuates and fluctuation is in the fluctuation has the effect fluctuation; the plug board 102 moves according to the change of the temperature outside the helium tank 101, the sliding rod 103 drives the pen holder 105 in the sleeve rod 104 to change in height during the movement, the pen holder 105 draws a motion track on the moving temperature curve display board 9 during the movement, the effect of intuitively drawing and displaying the temperature change curve inside the transformer is achieved, the two helium tanks 101 monitor the temperature at the oil top and the oil bottom inside the transformer in a targeted manner, and the effect of directly observing the temperature change curve of the oil top and the oil bottom inside the transformer during the detection of the residual life of the transformer is achieved; when the friction force rotating column 108 rotates for one period, the position of the intermittent groove 1081 corresponds to the position of the tooth arm rod 109, the connection between the friction force rotating column 108 and the temperature curve display board 9 is temporarily disconnected, the tooth arm rod 109 is driven by the rotating rod 107 to be meshed with the air outlet hole control panel 110, so that the air outlet hole control panel 110 is driven to conduct angle adjustment, the area of an air outlet is controlled during adjustment, the effect of temperature adjustment is achieved, the effect of residual life detection calculation of a transformer in load fluctuation under different temperature environments is met, the accuracy of life calculation is improved, meanwhile, the position of the yielding groove 1082 corresponds to the position of the pressing rod 17, the incoming wire connecting base 16 moves upwards through elasticity, connection with the transformer is lost after movement, the transformer is enabled to be in pause operation, the temperature is adjusted during pause operation, and the transformer, the rheostat and the display board are operated after the temperature is adjusted, and the effect of avoiding the influence of the transformer on the residual life detection calculation of the operation during the temperature adjustment is further achieved.
The above embodiments are only for illustrating the embodiments of the present invention, but not for limiting the embodiments of the present invention, and various changes and modifications may be made by one skilled in the relevant art without departing from the spirit and scope of the embodiments of the present invention, so that all equivalent technical solutions also fall within the scope of the embodiments of the present invention, and the scope of the embodiments of the present invention should be defined by the claims.
Claims (10)
1. The utility model provides a transformer residual life detection device under fluctuation load, includes detection organism (1), its characterized in that: the inside of detecting organism (1) is connected with transformer body (2), the inside fixedly connected with spiral slide rheostat body (3) of detecting organism (1), the fixed surface of spiral slide rheostat body (3) is connected with lug (4), the inside of lug (4) is through electric wire fixedly connected with copper sheet connection base (5) for being qualified for next round of competitions, the tip of spiral slide rheostat body (3) is connected with carousel (6) through belt drive, the inside fixedly connected with connecting rod (7) of carousel (6), the one end fixedly connected with gear (8) of carousel (6) are kept away from to connecting rod (7), the surface engagement of gear (8) has temperature curve show board (9), the inside of detecting organism (1) is provided with temperature change curve display device (10);
the temperature change curve display device (10) comprises a helium box (101), wherein the surface of the helium box (101) is fixedly connected with the inside of a transformer body (2), a plug plate (102) is connected to the inside of the helium box (101) through a spring, a sleeve rod (104) is fixedly connected to the top end of the plug plate (102) through a sliding rod (103), and a pen holder (105) is elastically connected to the inside of the sleeve rod (104) through a spring.
2. The device for detecting the residual life of a transformer under a fluctuating load according to claim 1, wherein: the utility model provides a spiral slide rheostat body (3) includes spiral cylinder (31), the inside of one end fixed connection detection organism (1) of spiral cylinder (31), the inside fixedly connected with spiral porcelain body (32) of spiral cylinder (31), the surface winding of spiral porcelain body (32) has the resistance wire, the other end rotation of spiral cylinder (31) is connected with connection pad post (33), the fixed surface of connection pad post (33) is connected with gag lever post (34), the surface sliding connection of gag lever post (34) has slip lasso (35).
3. The device for detecting the residual life of a transformer under a fluctuating load according to claim 2, wherein: one end of the connecting disc column (33) far away from the spiral column body (31) is connected with the surface of the rotary disc (6) through belt transmission, a sliding rod (36) is fixedly connected inside the sliding sleeve ring (35), and the surface of the sliding rod (36) is connected with a resistance wire wound on the surface of the spiral porcelain body (32).
4. The device for detecting the residual life of a transformer under a fluctuating load according to claim 2, wherein: the surface rotation of slip lasso (35) is connected with connecting block (37), the fixed surface of slip lasso (35) is connected with the copper circle, the inside fixedly connected with copper sheet of connecting block (37), inside sliding connection locating lever (38) of connecting block (37), the inside of tip fixed connection detection organism (1) of locating lever (38).
5. The device for detecting the residual life of a transformer under a fluctuating load according to claim 1, wherein: the low-voltage end of the transformer body (2) is fixedly connected to the bottom of the outgoing copper sheet connection base (5), the top of the temperature curve display board (9) is slidably connected with a positioning seat (11), and the end part of the positioning seat (11) is fixedly connected with the inside of the detection machine body (1).
6. The device for detecting the residual life of a transformer under a fluctuating load according to claim 1, wherein: the surface rotation of connecting rod (7) is connected with speed reduction base (12), the fixed surface of connecting rod (7) is connected with spiral spring (13), the inside of the link fixed connection speed reduction base (12) of spiral spring (13), the inside of speed reduction base (12) and the equal fixedly connected with speed reduction strip (14) of surface of connecting rod (7), the inside of the fixed surface connection detection organism (1) of speed reduction base (12).
7. The device for detecting the residual life of a transformer under a fluctuating load according to claim 1, wherein: the temperature change curve display device (10) further comprises a driving motor (106), a fan (111) and a heating pipe (112), wherein the surface of the driving motor (106) is fixedly connected with the top of the detection machine body (1), an output shaft of the driving motor (106) is clamped with a rotating rod (107), the bottom end of the rotating rod (107) is fixedly connected with a friction rotating column (108) through a rod, the surface of the rotating rod (107) is fixedly connected with a toothed arm rod (109), and the surface of the toothed arm rod (109) is meshed with an air outlet control disc (110).
8. The device for detecting remaining life of a transformer under fluctuating load according to claim 7, wherein: the surface fixed connection of fan (111) detects the top of organism (1), the surface fixed connection of heating pipe (112) detects the top of organism (1), the inside of organism (1) is detected in the surface rotation connection of bull stick (107), the inside of organism (1) is detected in the rotation of apopore control panel (110) bottom.
9. The device for detecting remaining life of a transformer under fluctuating load according to claim 7, wherein: intermittent grooves (1081) and abdication grooves (1082) are respectively formed in the top end and the bottom end of the friction force rotating column (108), and the surface of the friction force rotating column (108) is connected with the surface of the temperature curve display plate (9).
10. The device for detecting the residual life of a transformer under a fluctuating load according to claim 1, wherein: the inside fixedly connected with spacing base (15) of detection organism (1), base (16) are connected with copper sheet for the inlet wire through spring elastic connection to the bottom of spacing base (15), the high-pressure end of transformer body (2) is connected with the bottom of base (16) for the inlet wire, the inside of spacing base (15) is passed through pole sliding connection at the top of base (16) is connected with copper sheet for the inlet wire, one side fixedly connected with depression bar (17) that base (16) are close to frictional force revolving post (108) is connected with to copper sheet for the inlet wire.
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