CN111397765B - Power transformer fault detection equipment - Google Patents
Power transformer fault detection equipment Download PDFInfo
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- CN111397765B CN111397765B CN202010262275.8A CN202010262275A CN111397765B CN 111397765 B CN111397765 B CN 111397765B CN 202010262275 A CN202010262275 A CN 202010262275A CN 111397765 B CN111397765 B CN 111397765B
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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
- G01K13/12—Thermometers specially adapted for specific purposes combined with sampling devices for measuring temperatures of samples of materials
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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
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
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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
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
- G01K13/026—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow of moving liquids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a power transformer fault detection device, belongs to the field of transformer detection devices, and solves the problems that the transformer is not easy to fix during detection and internal oil sampling detection is not facilitated. The oil level detector is arranged on the power transformer; the convenience is fixed power transformer on the supporting seat, and the interval between the fixing base can be adjusted, be applicable to the power transformer's of different models fixed, firm intensity is high, and stability is good, conveniently carries out fault detection to power transformer, and, in the fluid detection hole through inserting power transformer with the fluid detector, to the interior fluid temperature detection of power transformer, also be convenient for take a sample to fluid, carry out on-line measuring, convenient operation is swift to the fluid of taking a sample to the fluid detection incasement.
Description
Technical Field
The invention relates to the field of transformer detection equipment, in particular to power transformer fault detection equipment.
Background
A transformer is a device for changing an alternating voltage using the principle of electromagnetic induction, and its main components include a primary coil, a secondary coil, and an iron core (magnetic core). The main functions of the transformer are: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), and the like. With the gradual increase of power utilization equipment in production and life, higher requirements are put on the working performance of the transformer. A common transformer is a transformer that operates using oil, i.e., an oil-type transformer, which is a structural type of the transformer, i.e., a coil of the transformer is immersed in oil. The oil-immersed transformer is generally installed indoors or outdoors in an independent transformer due to the requirement of fire prevention, and has the characteristics of large volume, low cost, simple maintenance, good heat dissipation, strong overload capacity and wide environment adaptation.
However, in the actual use process, due to reasons such as the transformer lasting working time being too long, the oil temperature of the oil liquid is often abnormal and the oil liquid cannot work normally. Moreover, the oil temperature of the transformer is generally detected by infrared rays, and the transformer needs to be manually inspected regularly or irregularly for temperature measurement, so that the accurate temperature measurement of the oil temperature in the transformer is difficult to realize.
And, after transformer fluid used for a long time, can't sample and on-line measuring transformer fluid, above-mentioned temperature measurement and fluid sample test all lack the stable fixed to the transformer. Therefore, it is desirable to provide a power transformer fault detection device, which aims to solve the above problems.
Disclosure of Invention
In view of the defects in the prior art, an embodiment of the present invention provides a power transformer fault detection device to solve the above problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a power transformer fault detection device comprises a supporting seat, a clamp, a supporting frame, a lifting plate, a fixed seat and an oil detector, wherein the clamp is installed on the supporting seat, a power transformer is fixed on the clamp, the supporting frame is installed on the supporting seat, the top of the supporting frame is connected with a top plate, a jacking cylinder is installed on the top plate, the bottom of the jacking cylinder is connected with the lifting plate through a piston rod, the bottom of the lifting plate is connected with a fixed frame, and a guide rod and a lead screw are installed on the fixed frame; the guide rod and the lead screw are sleeved with a sliding block, the bottom of the sliding block is connected with an inclined strut, and the bottom end of the inclined strut is connected with a fixed seat;
the slider bottom still installs the fluid detection case, and oil appearance pump is connected to fluid detection case bottom, and oil appearance pump connection fluid extraction pipe, fluid extraction union coupling fluid detector.
As a further scheme of the invention, the guide rod and the lead screw are arranged in parallel, one end of the lead screw is connected with a stepping motor, the stepping motor is a positive and negative rotation servo motor, and the lead screw is in threaded connection with the sliding block.
As a further scheme of the invention, the number of the inclined brackets is two, the tops of the inclined brackets are hinged with the sliding block, the two inclined brackets are connected through a screw rod, and a locking nut is arranged on the screw rod.
As a further scheme of the invention, a spring is sleeved on a screw rod between the fixed seats at the bottoms of the two inclined brackets.
As a further scheme of the invention, the clamp comprises a fixing frame which is of a rectangular structure, a fixing groove for placing the power transformer is arranged in the fixing frame, a screw hole in the side wall of the fixing frame is provided with a fastening bolt, and the inner side of the fastening bolt is connected with a clamping plate.
As a further scheme of the invention, the oil liquid detection box is connected with an oil liquid online detection device.
As a further scheme of the invention, the oil detector comprises an oil measuring rod, and an oil suction hole is formed in the bottom end of the oil measuring rod.
As a further scheme of the invention, the oil liquid suction hole is communicated with an oil liquid extraction pipe, the oil liquid extraction pipe is arranged in an oil liquid measuring rod, the top of the oil liquid measuring rod is connected with a tank feeding disc, and a sealing gasket is arranged on the tank feeding disc.
As a further scheme of the invention, the oil measuring rod is also provided with a temperature sensing probe.
As a further scheme of the invention, the power transformer is provided with pins and oil detection holes, and the oil detector is arranged in the oil detection holes.
In summary, compared with the prior art, the embodiment of the invention has the following beneficial effects:
1. according to the power transformer fault detection equipment, the power transformer is fixed on the supporting seat through the clamp and the fixing seats, the distance between the fixing seats can be adjusted, the power transformer fault detection equipment is suitable for fixing power transformers of different models, high in firmness and stability and convenient for fault detection of the power transformer;
2. through inserting power transformer's fluid detection hole with the fluid detector, when detecting power transformer interior fluid temperature, also be convenient for take a sample fluid, carry out on-line measuring, convenient operation is swift to the fluid of taking a sample to the fluid detection incasement.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the invention.
Fig. 2 is a schematic structural view of a jig in the embodiment of the present invention.
FIG. 3 is a schematic structural diagram of an oil detector in an embodiment of the invention.
FIG. 4 is a schematic structural diagram of a connecting slide block of an oblique bracket in the embodiment of the invention.
Reference numerals: 1-supporting seat, 2-clamp, 3-fixing frame, 4-fixing groove, 5-clamping plate, 6-fastening bolt, 7-supporting frame, 8-top plate, 9-top pressure cylinder, 10-piston rod, 11-lifting plate, 12-fixing frame, 13-guide rod, 14-lead screw, 15-stepping motor, 16-slide block, 17-inclined support frame, 18-screw rod, 19-locking nut, 20-fixing seat, 21-power transformer, 22-pin, 23-oil detecting hole, 24-oil detector, 25-tank feeding disk, 26-sealing gasket, 27-oil measuring rod, 28-temperature sensing probe, 29-oil sucking hole, 30-oil sucking pipe, 31-oil sample pump, etc, 32-oil liquid detection box, 33-oil liquid on-line detection device.
Detailed Description
The technical solution of the present invention is further described with reference to the accompanying drawings and specific embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
Example 1
Referring to fig. 1-4, a power transformer fault detection device includes a support seat 1, a clamp 2, a support frame 7, a lifting plate 11, a fixed seat 20 and an oil detector 24, wherein the support seat 1 is provided with the clamp 2, the clamp 2 is fixed with a power transformer 21, the support frame 1 is provided with the support frame 7, the top of the support frame 7 is connected with a top plate 8, the top plate 8 is provided with a jacking cylinder 9, the bottom of the jacking cylinder 9 is connected with the lifting plate 11 through a piston rod 10, the bottom of the lifting plate 11 is connected with a fixed frame 12, the fixed frame 12 is provided with a guide rod 13 and a lead screw 14, the guide rod 13 and the lead screw 14 are arranged in parallel, one end of the lead screw 14 is connected with a stepping motor 15, and the guide rod 13 and the lead screw 14 are sleeved with a slider 16; when the stepping motor 15 is powered on to work, the stepping motor 15 drives the lead screw 14 to rotate, in the embodiment of the invention, the stepping motor 15 is a servo motor with a forward and reverse rotation function, the stepping motor 15 can drive the lead screw 14 to rotate clockwise or anticlockwise, and when the lead screw 14 is in a forward and reverse direction, the lead screw drives the slider 16 in threaded connection to transversely slide along the guide rod 13, so that the position of the slider 16 on the guide rod 13 can be conveniently adjusted.
The bottom of the sliding block 16 is connected with two inclined strut frames 17, the tops of the two inclined strut frames 17 are hinged to the sliding block 16, the two inclined strut frames 17 are connected through a screw rod 18, a locking nut 19 is installed on the screw rod 18, the bottom end of each inclined strut frame 17 is connected with a fixing seat 20, and the fixing seat 20 is used for fixing the top of a power transformer 21.
In order to facilitate flexible adjustment of the distance between the two fixing seats 20 at the bottom of the angle bracket 17 according to the size of the power transformer 21 to adapt to the width of the power transformer 21, preferably, a spring is further sleeved on the screw 18 between the two fixing seats 20 at the bottom of the angle bracket 17, under the action of the spring force, the two fixing seats 20 are spread outwards, and meanwhile, the screw 18 is connected with the two fixing seats 20, and the distance between the two fixing seats 20 is adjusted through the locking nut 19, and is the same as the width of the power transformer 21, so as to be suitable for fixing the power transformers 21 with different widths.
In the embodiment of the present invention, the operation process for clamping and fixing the power transformer 21 is as follows:
firstly, placing a power transformer 21 in a fixing groove 4 of a clamp 2, and clamping the bottom of the power transformer 21 by a clamping plate 5 through screwing a fastening bolt 6 to fix the bottom of the power transformer 21; then, starting the stepping motor 15 to work, driving the sliding block 16 to move along the guide rod 13 through the lead screw 14, and adjusting the position of the sliding block 16 to enable the sliding block 16 to move right above the power transformer 21; then, the distance between the two fixed seats 20 connected by the screw rod 18 is adjusted by screwing the locking nut 19, so that the distance between the two fixed seats 20 is equal to the width of the power transformer 21, and the two fixed seats 20 are positioned right above the power transformer 21; and finally, starting the jacking cylinder 9, driving the lifting plate 11, the inclined bracket 17 and the fixed seat 20 below the lifting plate 11 to move downwards through the piston rod 10 until the fixed seat 20 compresses the top of the power transformer 21 and fixes the power transformer 21, so that the power transformer 21 is stably fixed, and the fault of the power transformer 21 is further detected.
An oil liquid detection box 32 is further installed at the bottom of the sliding block 16, the oil liquid detection box 32 is connected with an oil liquid online detection device 33, and it should be particularly noted that the oil liquid online detection device 33 is applied to the prior art and is used for detecting parameters and performance of oil liquid in the oil liquid detection box 32; the bottom of the oil liquid detection box 32 is connected with an oil sample pump 31, the oil sample pump 31 is connected with an oil liquid extraction pipe 30, and the oil liquid extraction pipe 30 is connected with an oil liquid detector 24;
the oil detector 24 comprises an oil measuring rod 27, wherein an oil extraction pipe 30 is arranged in the oil measuring rod 27, an oil suction hole 29 is formed in the bottom end of the oil measuring rod 27, the oil suction hole 29 is used for sucking transformer oil inside the power transformer 21, a temperature sensing probe 28 is further mounted on the oil measuring rod 27, and the temperature sensing probe 28 is used for detecting the temperature of the transformer oil inside the power transformer 21; the top of the oil liquid measuring rod 27 is connected with a tank inlet disc 25, and a sealing gasket 26 is arranged on the tank inlet disc 25.
Example 2
Referring to fig. 1-4, a power transformer fault detection device includes a support seat 1, a clamp 2, a support frame 7, a lifting plate 11, a fixed seat 20 and an oil detector 24, wherein the support seat 1 is provided with the clamp 2, the clamp 2 is fixed with a power transformer 21, the support frame 1 is provided with the support frame 7, the top of the support frame 7 is connected with a top plate 8, the top plate 8 is provided with a jacking cylinder 9, the bottom of the jacking cylinder 9 is connected with the lifting plate 11 through a piston rod 10, the bottom of the lifting plate 11 is connected with a fixed frame 12, the fixed frame 12 is provided with a guide rod 13 and a lead screw 14, the guide rod 13 and the lead screw 14 are arranged in parallel, one end of the lead screw 14 is connected with a stepping motor 15, and the guide rod 13 and the lead screw 14 are sleeved with a slider 16; when the stepping motor 15 is powered on to work, the stepping motor 15 drives the lead screw 14 to rotate, in the embodiment of the invention, the stepping motor 15 is a servo motor with a forward and reverse rotation function, the stepping motor 15 can drive the lead screw 14 to rotate clockwise or anticlockwise, and when the lead screw 14 is in a forward and reverse direction, the lead screw drives the slider 16 in threaded connection to transversely slide along the guide rod 13, so that the position of the slider 16 on the guide rod 13 can be conveniently adjusted.
The bottom of the sliding block 16 is connected with two inclined strut frames 17, the tops of the two inclined strut frames 17 are hinged to the sliding block 16, the two inclined strut frames 17 are connected through a screw rod 18, a locking nut 19 is installed on the screw rod 18, the bottom end of each inclined strut frame 17 is connected with a fixing seat 20, and the fixing seat 20 is used for fixing the top of a power transformer 21.
In order to facilitate flexible adjustment of the distance between the two fixing seats 20 at the bottom of the angle bracket 17 according to the size of the power transformer 21 to adapt to the width of the power transformer 21, preferably, a spring is further sleeved on the screw 18 between the two fixing seats 20 at the bottom of the angle bracket 17, under the action of the spring force, the two fixing seats 20 are spread outwards, and meanwhile, the screw 18 is connected with the two fixing seats 20, and the distance between the two fixing seats 20 is adjusted through the locking nut 19, and is the same as the width of the power transformer 21, so as to be suitable for fixing the power transformers 21 with different widths.
In the embodiment of the present invention, the operation process for clamping and fixing the power transformer 21 is as follows:
firstly, placing a power transformer 21 in a fixing groove 4 of a clamp 2, and clamping the bottom of the power transformer 21 by a clamping plate 5 through screwing a fastening bolt 6 to fix the bottom of the power transformer 21; then, starting the stepping motor 15 to work, driving the sliding block 16 to move along the guide rod 13 through the lead screw 14, and adjusting the position of the sliding block 16 to enable the sliding block 16 to move right above the power transformer 21; then, the distance between the two fixed seats 20 connected by the screw rod 18 is adjusted by screwing the locking nut 19, so that the distance between the two fixed seats 20 is equal to the width of the power transformer 21, and the two fixed seats 20 are positioned right above the power transformer 21; and finally, starting the jacking cylinder 9, driving the lifting plate 11, the inclined bracket 17 and the fixed seat 20 below the lifting plate 11 to move downwards through the piston rod 10 until the fixed seat 20 compresses the top of the power transformer 21 and fixes the power transformer 21, so that the power transformer 21 is stably fixed, and the fault of the power transformer 21 is further detected.
An oil liquid detection box 32 is further installed at the bottom of the sliding block 16, the oil liquid detection box 32 is connected with an oil liquid online detection device 33, and it should be particularly noted that the oil liquid online detection device 33 is applied to the prior art and is used for detecting parameters and performance of oil liquid in the oil liquid detection box 32; the bottom of the oil liquid detection box 32 is connected with an oil sample pump 31, the oil sample pump 31 is connected with an oil liquid extraction pipe 30, and the oil liquid extraction pipe 30 is connected with an oil liquid detector 24;
the oil detector 24 comprises an oil measuring rod 27, wherein an oil extraction pipe 30 is arranged in the oil measuring rod 27, an oil suction hole 29 is formed in the bottom end of the oil measuring rod 27, the oil suction hole 29 is used for sucking transformer oil inside the power transformer 21, a temperature sensing probe 28 is further mounted on the oil measuring rod 27, and the temperature sensing probe 28 is used for detecting the temperature of the transformer oil inside the power transformer 21; the top of the oil liquid measuring rod 27 is connected with a tank inlet disc 25, and a sealing gasket 26 is arranged on the tank inlet disc 25.
The present embodiment is different from embodiment 1 in that:
be equipped with pin 22 on the power transformer 21, still be equipped with fluid inspection hole 23 on the power transformer 21, when needs carry out fluid detection to power transformer 21, through inserting fluid detector 24 in fluid inspection hole 23, make into tank pan 25 and power transformer 21 counterbalance and through sealed pad 26 to fluid inspection hole 23 sealed back, fluid measuring stick 27 inserts in the power transformer 21, temperature sensing probe 28 on the fluid measuring stick 27 is used for detecting the interior fluid temperature of power transformer 21, fluid suction hole 29 of fluid measuring stick 27 bottom is used for taking out and go into in the fluid detection case 32 with the interior fluid of power transformer 21 through fluid extraction pipe 30 after oil sample pump 31 starts, be used for detecting fluid, thereby be used for detecting power transformer 21's trouble, judge whether the trouble that arouses for fluid.
The present invention can also perform other fault detection operations after the power transformer 21 is fixed.
According to the power transformer fault detection equipment, the power transformer is fixed on the supporting seat through the clamp and the fixing seats, the distance between the fixing seats can be adjusted, the power transformer fault detection equipment is suitable for fixing power transformers of different models, high in firmness and stability and convenient for fault detection of the power transformer;
through inserting power transformer's fluid detection hole with the fluid detector, when detecting power transformer interior fluid temperature, also be convenient for take a sample fluid, carry out on-line measuring, convenient operation is swift to the fluid of taking a sample to the fluid detection incasement.
The technical principle of the present invention has been described above with reference to specific embodiments, which are merely preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. Other embodiments of the invention will occur to those skilled in the art without the exercise of inventive faculty, and such will fall within the scope of the invention.
Claims (9)
1. The power transformer fault detection equipment comprises a supporting seat (1), a clamp (2), a supporting frame (7), a lifting plate (11), a fixing seat (20) and an oil detector (24), and is characterized in that the clamp (2) is installed on the supporting seat (1), a power transformer (21) is fixed on the clamp (2), the supporting frame (7) is installed on the supporting seat (1), the top of the supporting frame (7) is connected with a top plate (8), a jacking cylinder (9) is installed on the top plate (8), the bottom of the jacking cylinder (9) is connected with the lifting plate (11) through a piston rod (10), the bottom of the lifting plate (11) is connected with a fixing frame (12), and a guide rod (13) and a lead screw (14) are installed on the fixing frame (12); a sliding block (16) is sleeved on the guide rod (13) and the lead screw (14), the bottom of the sliding block (16) is connected with an inclined strut (17), and the bottom end of the inclined strut (17) is connected with a fixed seat (20);
an oil liquid detection box (32) is further mounted at the bottom of the sliding block (16), an oil sample pump (31) is connected to the bottom of the oil liquid detection box (32), the oil sample pump (31) is connected with an oil liquid extraction pipe (30), and the oil liquid extraction pipe (30) is connected with an oil liquid detector (24); be equipped with pin (22) on power transformer (21), still be equipped with fluid inspection hole (23) on power transformer (21), install in fluid inspection hole (23) fluid detector (24).
2. The power transformer fault detection device according to claim 1, wherein the guide rod (13) and the lead screw (14) are arranged in parallel, one end of the lead screw (14) is connected with a stepping motor (15), the stepping motor (15) is a positive and negative rotation servo motor, and the lead screw (14) is in threaded connection with the slider (16).
3. The power transformer fault detection device according to claim 2, characterized in that the number of the angle brackets (17) is two, the tops of the angle brackets are hinged with the sliding blocks (16), the two angle brackets (17) are connected through a screw rod (18), and a locking nut (19) is installed on the screw rod (18).
4. The power transformer fault detection device according to claim 3, wherein a spring is further sleeved on the screw rod (18) between the fixed seats (20) at the bottoms of the two angle brackets (17).
5. The power transformer fault detection device according to claim 1, characterized in that the clamp (2) comprises a fixing frame (3), the fixing frame (3) is of a rectangular structure, a fixing groove (4) for placing the power transformer (21) is arranged in the fixing frame (3), a screw hole on the side wall of the fixing frame (3) is provided with a fastening bolt (6), and a clamping plate (5) is connected to the inner side of the fastening bolt (6).
6. A power transformer fault detection apparatus according to claim 1, characterized in that the oil detection tank (32) is connected to an oil on-line detection device (33).
7. A power transformer fault detection apparatus according to any one of claims 1-6, wherein the oil detector (24) comprises an oil measuring rod (27), and an oil suction hole (29) is formed at the bottom end of the oil measuring rod (27).
8. The power transformer fault detection device according to claim 7, wherein the oil suction hole (29) is communicated with an oil extraction pipe (30), the oil extraction pipe (30) is arranged in the oil measuring rod (27), the top of the oil measuring rod (27) is connected with a tank inlet disc (25), and a sealing gasket (26) is arranged on the tank inlet disc (25).
9. A power transformer fault detection device according to claim 7, characterized in that a temperature sensing probe (28) is further mounted on the oil measuring rod (27).
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| CN202010262275.8A CN111397765B (en) | 2020-04-06 | 2020-04-06 | Power transformer fault detection equipment |
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| CN202010262275.8A CN111397765B (en) | 2020-04-06 | 2020-04-06 | Power transformer fault detection equipment |
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| CN111397765B true CN111397765B (en) | 2021-08-24 |
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| CN111735994B (en) * | 2020-08-25 | 2020-11-13 | 广东电网有限责任公司东莞供电局 | Clamp for transformer detection |
| CN113447674B (en) * | 2021-08-30 | 2021-11-16 | 广东电网有限责任公司东莞供电局 | Transformer test fixture device |
| CN113820475B (en) * | 2021-09-16 | 2024-01-26 | 国网江苏省电力有限公司盐城供电分公司 | System for be used for detecting oil plug content in transformer oil |
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