CN208520953U - A kind of power transformer high-precision local discharging detection device - Google Patents
A kind of power transformer high-precision local discharging detection device Download PDFInfo
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- CN208520953U CN208520953U CN201820792824.0U CN201820792824U CN208520953U CN 208520953 U CN208520953 U CN 208520953U CN 201820792824 U CN201820792824 U CN 201820792824U CN 208520953 U CN208520953 U CN 208520953U
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Abstract
The utility model discloses a kind of power transformer high-precision local discharging detection devices, including mounting box, the mounting box includes pedestal, fixed cylinder, connecting cylinder, fixed device, mounting plate, sealing drum, waterproof cover, mounting shell, air-drying device and dust-extraction unit, the side of the pedestal is fixed on the outside of transformer, and fixed cylinder is fixed on side of the pedestal far from transformer, one end of the connecting cylinder is socketed in the outside of fixed cylinder, and it is clamped by fixed device and fixed cylinder, the connecting cylinder is equipped with internal screw thread far from the inside of fixed cylinder one end, the outside of described waterproof cover one end is equipped with external screw thread, the waterproof cover is flexibly connected by screw thread with connecting cylinder, this power transformer high-precision local discharging detection device, system can be monitored to ultrasound partial discharge by mounting box play sufficient protective effect, ultrasound partial discharge is prevented to supervise Damage of the condensation to circuit system is generated inside examining system due to temperature difference, and keeps the maintenance of ultrasound partial discharge monitoring system more convenient.
Description
Technical field
The utility model relates to Partial Discharge in Power Transformer detection technique field, specially a kind of power transformer is high-precision
Spend local discharge detection device.
Background technique
Partial discharge of transformer refers to that bubble existing for transformer insulated inside, crackle or impurity etc. are issued in applied voltage
Raw local, duplicate breakdown and Quench.If a transformer is with partial discharges fault as one or more
Longtime running, these faint electric discharges and its caused some ill effects, it will lead to transformer insulated rapid aging, day
The product moon is tired to be possible to cause entirely to insulate breakdown, and major accident occurs, brings massive losses to national economy.
The prior art often monitors system by ultrasound partial discharge and detects to the shelf depreciation of transformer, its advantage is that can be with
Complete that the on-line monitoring of partial discharges fault, anti-electromagnetic interference capability be strong, system under conditions of transformer is incorporated into the power networks at the scene
Stability is good, while hardware realization and software algorithm are relatively easy, but since some transformers are located outside, ultrasound partial discharge prison
The working environment of examining system is more unstable, especially the biggish area of the temperature difference, and ultrasound partial discharge monitors the inside of system mounting shell
It is also easy to produce condensation, to easily be damaged to circuit system, and is fixed mostly by bolt and transformer case, such one
Come, not only maintenance is more troublesome, but also bolt easily corrodes under the erosion of rainwater, reduces ultrasound partial discharge monitoring system peace
The stability of dress.For this purpose, it is proposed that a kind of power transformer high-precision local discharging detection device.
Utility model content
The purpose of this utility model is to provide a kind of power transformer high-precision local discharging detection devices, on solving
State the problem of proposing in background technique.
To achieve the above object, the utility model provides the following technical solutions: a kind of power transformer high-precision local is put
Electric detection means, including mounting box, the mounting box include pedestal, fixed cylinder, connecting cylinder, fixed device, mounting plate, sealing
The side of cylinder, waterproof cover, mounting shell, air-drying device and dust-extraction unit, the pedestal is fixed on the outside of transformer, and fixed
Cylinder is fixed on side of the pedestal far from transformer, and one end of the connecting cylinder is socketed in the outside of fixed cylinder, and passes through fixed dress
It sets and is clamped with fixed cylinder, the connecting cylinder is equipped with internal screw thread, the outside of described waterproof cover one end far from the inside of fixed cylinder one end
Equipped with external screw thread, the waterproof cover is flexibly connected by screw thread with connecting cylinder, and the bottom of waterproof cover is equipped with ventilation opening, the peace
Loading board is fixed on the inside of connecting cylinder, and sealing drum is fixed on side of the mounting plate far from pedestal, and the mounting shell is located at waterproof
The inside of shell, and the inside of mounting shell one end is equipped with internal screw thread, the outside of the sealing drum is equipped with external screw thread, and the sealing drum is logical
It crosses screw thread to be flexibly connected with mounting shell, the outside of the mounting shell is angularly equipped with multiple air inlet holes, and the dust-extraction unit is located at
The outside of air inlet hole, and fixed with the outer wall of mounting shell, the air-drying device is fixed on side of the mounting shell far from mounting plate, institute
The inside that ultrasound partial discharge monitoring system is located at mounting shell is stated, and is fixed on a mounting board.
Preferably, the fixed device includes fixed plate, reset spring, supporting element, clamping block, limited block and compressing member,
The connecting cylinder is symmetrically arranged with opening on the outside of pedestal one end, and the fixed plate is located at the outside of opening, the fixed plate
It is rotatablely connected close to the side of opening by supporting element and connecting cylinder, the fixed plate passes through reset spring far from one end of pedestal
It is fixed with connecting cylinder, and the fixed plate other end is fixed with clamping block, the clamping block and limited block card close to the side of connecting cylinder
It connects, the limited block is located in opening, and fixes with the outer wall of fixed cylinder, and the connecting cylinder passes through compression close to one end of pedestal
Part offsets with pedestal.
Preferably, the supporting element includes supporting block, advance ball and support shaft, the top of the supporting block and fixed plate
It is fixed, and the bottom of supporting block is equipped with groove, the advance ball is slidably connected in groove, and the bottom of advance ball passes through
The outer wall of support shaft and connecting cylinder is fixed.
Preferably, the compressing member includes annular slab and holddown spring, and the annular slab is slidably socketed in the outer of fixed cylinder
Side, and offset at the side of annular slab and the port of connecting cylinder, the other side of the annular slab is solid by holddown spring and pedestal
It is fixed.
Preferably, the holddown spring is equipped with multiple, and multiple holddown springs be angularly distributed in annular slab and pedestal it
Between.
Preferably, the waterproof cover is equipped with stepped groove close to one end of connecting cylinder, is fixed on the side wall of the stepped groove
It is bonded at first sealing ring, first sealing ring and the port of connecting cylinder.
Preferably, the dust-extraction unit includes dedusting shell and dust removal filter element, and the dedusting shell is located at the outside of air inlet hole, and
It is fixedly attached on the outer wall of mounting shell, position corresponding with air inlet hole is equipped with air hole, the dedusting on the outside of the dedusting shell
Filter core is filled in the inside of dedusting shell.
Preferably, the air-drying device includes exhaust tube, driving motor, air draft flabellum and bracket, and the exhaust tube runs through
The side wall of mounting shell, and being fixedly connected with the side wall of mounting shell, the outside of the driving motor are interior by bracket and exhaust tube
Wall is fixed, and the output shaft of driving motor is fixed with air draft flabellum.
Preferably, ring baffle is fixed on the inside of the mounting shell, the ring baffle is solid close to the side of sealing drum
Surely there is the second sealing ring, be bonded at second sealing ring and the port of sealing drum.
Compared with prior art, the utility model has the beneficial effects that
1, the utility model can monitor system to ultrasound partial discharge by mounting box and play sufficient protective effect, it is therefore prevented that super
Sound partial discharge monitoring internal system generates damage of the condensation to circuit system due to temperature difference, and ultrasound partial discharge is made to monitor system
Maintenance it is more convenient, when work, acted on by the clamping of clamping block and limited block, fixed function played to connecting cylinder, thus
Ultrasound partial discharge monitoring system can be fixed on transformer case, when being dismantled to connecting cylinder, by fixed plate the bottom of far from
One end of seat applies pressure, shrinks reset spring, and the other end of fixed plate is raised above, and clamping block is separated with limited block, from
And separate connecting cylinder can with fixed cylinder, the disassembly to connecting cylinder is realized, clamping block and limited block are made by holddown spring
Clamping is more firm, it can be made to be removed, pass through the rotation of driving motor by rotating to waterproof cover and mounting shell
The rotation of air draft flabellum can be driven, so as to which the air on the inside of mounting shell to be discharged, extraneous air is entered by ventilation opening
In waterproof cover, and entered in mounting shell by air inlet hole, realize the exchange of gas, to make the work of ultrasound partial discharge monitoring system
It is identical as extraneous temperature to make environment temperature, it is therefore prevented that the generation of condensation, it can be to entering inside mounting shell by dust removal filter element
Air is filtered, and prevents the dust of air from polluting to ultrasound partial discharge monitoring system.
2, the utility model holddown spring is equipped with multiple, and multiple holddown springs be angularly distributed in annular slab and pedestal it
Between, keep holddown spring more uniform to the support force of annular slab, connecting cylinder is enhanced to the close of waterproof cover by the first sealing ring
Feng Xing enhances sealing drum to the leakproofness of mounting shell by the second sealing ring.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the utility model top view；
Fig. 3 is the utility model section figure；
Fig. 4 is a-quadrant enlarged drawing in Fig. 3；
Fig. 5 is B area enlarged drawing in Fig. 3；
Fig. 6 is C regional enlarged drawing in Fig. 3；
Fig. 7 is D regional enlarged drawing in Fig. 3；
Fig. 8 is E regional enlarged drawing in Fig. 3.
In figure: 1- mounting box；2- pedestal；3- fixed cylinder；4- connecting cylinder；5- fixes device；6- mounting plate；7- sealing drum；
8- waterproof cover；9- mounting shell；10- air-drying device；11- dust-extraction unit；12- ventilation opening；13- air inlet hole；14- fixed plate；15- is multiple
Position spring；16- supporting element；17- clamping block；18- limited block；19- compressing member；20- opening；21- supporting block；22- advance ball；
23- support shaft；24- annular slab；25- holddown spring；26- stepped groove；The first sealing ring of 27-；28- dedusting shell；29- dedusting filter
Core；30- air hole；31- exhaust tube；32- driving motor；33- air draft flabellum；34- bracket；35- ring baffle；36- second is close
Seal；37- ultrasound partial discharge monitors system.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-8 is please referred to, the utility model provides a kind of technical solution: a kind of power transformer high-precision local electric discharge inspection
Survey device, including mounting box 1, the mounting box 1 includes pedestal 2, fixed cylinder 3, connecting cylinder 4, fixed device 5, mounting plate 6, close
Sealed tube 7, waterproof cover 8, mounting shell 9, air-drying device 10 and dust-extraction unit 11, the side of the pedestal 2 are fixed on the outer of transformer
On side, and fixed cylinder 3 is fixed on side of the pedestal 2 far from transformer, and one end of the connecting cylinder 4 is socketed in the outer of fixed cylinder 3
Side, and be clamped by fixed device 5 with fixed cylinder 3, the connecting cylinder 4 is equipped with internal screw thread, institute far from the inside of 3 one end of fixed cylinder
The outside for stating 8 one end of waterproof cover is equipped with external screw thread, and the waterproof cover 8 is flexibly connected by screw thread with connecting cylinder 4, and waterproof cover 8
Bottom be equipped with ventilation opening 12, the mounting plate 6 is fixed on the inside of connecting cylinder 4, and to be fixed on mounting plate 6 separate for sealing drum 7
The side of pedestal 2, the mounting shell 9 is located at the inside of waterproof cover 8, and the inside of 9 one end of mounting shell is equipped with internal screw thread, described close
The outside of sealed tube 7 is equipped with external screw thread, and the sealing drum 7 is flexibly connected by screw thread with mounting shell 9, the outside of the mounting shell 9
Multiple air inlet holes 13 are angularly equipped with, the dust-extraction unit 11 is located at the outside of air inlet hole 13, and solid with the outer wall of mounting shell 9
Fixed, the air-drying device 10 is fixed on side of the mounting shell 9 far from mounting plate 6, and the ultrasound partial discharge monitoring system 37 is located at peace
The inside of shell 9 is filled, and is fixed on mounting plate 6.
The fixed device 5 includes fixed plate 14, reset spring 15, supporting element 16, clamping block 17, limited block 18 and compresses
Part 19, the connecting cylinder 4 are symmetrically arranged with opening 20 on the outside of 2 one end of pedestal, and the fixed plate 14 is located at the outer of opening 20
Side, the fixed plate 14 are rotatablely connected close to the side of opening 20 by supporting element 16 and connecting cylinder 4, and the fixed plate 14 is separate
One end of pedestal 2 is fixed by reset spring 15 and connecting cylinder 4, and 14 other end of fixed plate is fixed close to the side of connecting cylinder 4
Have a clamping block 17, the clamping block 17 is clamped with limited block 18, and the limited block 18 is located in opening 20, and with fixed cylinder 3
Outer wall is fixed, and the connecting cylinder 4 is offseted by compressing member 19 with pedestal 2 close to one end of pedestal 2, makes to surpass by fixed device 5
Sound partial discharge monitoring system 37 can be fixed on transformer case.
The supporting element 16 includes supporting block 21, advance ball 22 and support shaft 23, the top of the supporting block 21 and solid
Fixed board 14 is fixed, and the bottom of supporting block 21 is equipped with groove, and the advance ball 22 is slidably connected in groove, and advance ball
22 bottom is fixed by support shaft 23 and the outer wall of connecting cylinder 4, fixed plate 14 can be made relative to connecting cylinder 4 by supporting element 16
Rotation.
The compressing member 19 includes annular slab 24 and holddown spring 25, and the annular slab 24 is slidably socketed in fixed cylinder 3
Outside, and offset at the side of annular slab 24 and the port of connecting cylinder 4, the other side of the annular slab 24 passes through holddown spring
25 is fixed with pedestal 2, keeps the clamping of clamping block 17 and limited block 18 more firm by holddown spring 25.
The holddown spring 25 be equipped with it is multiple, and multiple holddown springs 25 be angularly distributed in annular slab 24 and pedestal 2 it
Between, keep holddown spring 25 more uniform to the support force of annular slab 24.
The waterproof cover 8 is equipped with stepped groove 26 close to one end of connecting cylinder 4, and the is fixed on the side wall of the stepped groove 26
It is bonded at one sealing ring 27, first sealing ring 27 and the port of connecting cylinder 4, enhances sealing of the connecting cylinder 4 to waterproof cover 8
Property.
The dust-extraction unit 11 includes dedusting shell 28 and dust removal filter element 29, and the dedusting shell 28 is located at the outer of air inlet hole 13
Side, and be fixedly attached on the outer wall of mounting shell 9, position corresponding with air inlet hole 13 is equipped with air hole on the outside of the dedusting shell 28
30, the dust removal filter element 29 is filled in the inside of dedusting shell 28, can be to the air entered inside mounting shell 9 by dust removal filter element 29
It is filtered.
The air-drying device 10 includes exhaust tube 31, driving motor 32, air draft flabellum 33 and bracket 34, the exhaust tube 31
Be fixedly connected through the side wall of mounting shell 9, and with the side wall of mounting shell 9, the outside of the driving motor 32 by bracket 34 with
The inner wall of exhaust tube 31 is fixed, and the output shaft of driving motor 32 and air draft flabellum 33 are fixed, are prevented by air-drying device 10
The generation of condensation.
The inside of the mounting shell 9 is fixed with ring baffle 35, and the ring baffle 35 is solid close to the side of sealing drum 7
Surely there is the second sealing ring 36, be bonded at second sealing ring 36 and the port of sealing drum 7, enhanced by the second sealing ring 36
Leakproofness of the sealing drum 7 to mounting shell 9.
Working principle: system 37 can be monitored to ultrasound partial discharge by mounting box 1 and play sufficient protective effect, it is therefore prevented that is super
Damage of the condensation to circuit system is generated due to temperature difference inside sound partial discharge monitoring system 37, and makes ultrasound partial discharge monitoring system
The maintenance of system 37 is more convenient, when work, is acted on by the clamping of clamping block 17 and limited block 18, plays fixation to connecting cylinder 4
Effect, so that ultrasound partial discharge monitoring system 37 can be fixed on transformer case, when dismantling to connecting cylinder 4, by right
Fixed plate 14 applies pressure far from one end of pedestal 2, shrinks reset spring 15, and the other end of fixed plate 14 is raised above, and blocks
It connects block 17 to separate with limited block 18, to make connecting cylinder 4 that can separate with fixed cylinder 3, realizes the disassembly to connecting cylinder 4, pass through
Holddown spring 25 keeps the clamping of clamping block 17 and limited block 18 more firm, can be by waterproof cover 8 and 9 turns of mounting shell
It is dynamic, so that it is removed, the rotation of air draft flabellum 33 can be driven by the rotation of driving motor 32, so as to by mounting shell 9
The air of inside is discharged, and extraneous air is entered in waterproof cover 8 by ventilation opening 12, and enters mounting shell by air inlet hole 13
In 9, the exchange of gas is realized, thus keep the operating ambient temperature of ultrasound partial discharge monitoring system 37 identical as extraneous temperature,
The generation for preventing condensation can be filtered the air entered inside mounting shell 9 by dust removal filter element 29, prevent the ash of air
Dirt pollutes ultrasound partial discharge monitoring system 37.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (9)
1. a kind of power transformer high-precision local discharging detection device, including mounting box (1), it is characterised in that: the installation
Box (1) includes pedestal (2), fixed cylinder (3), connecting cylinder (4), fixed device (5), mounting plate (6), sealing drum (7), waterproof cover
(8), the side of mounting shell (9), air-drying device (10) and dust-extraction unit (11), the pedestal (2) is fixed on the outside of transformer
On, and fixed cylinder (3) is fixed on the side of pedestal (2) far from transformer, one end of the connecting cylinder (4) is socketed in fixed cylinder
(3) outside, and be clamped by fixed device (5) and fixed cylinder (3), the connecting cylinder (4) is interior far from fixed cylinder (3) one end
Side is equipped with internal screw thread, and the outside of described waterproof cover (8) one end is equipped with external screw thread, and the waterproof cover (8) passes through screw thread and connecting cylinder
(4) it is flexibly connected, and the bottom of waterproof cover (8) is equipped with ventilation opening (12), the mounting plate (6) is fixed on the interior of connecting cylinder (4)
Side, and sealing drum (7) is fixed on the side of mounting plate (6) far from pedestal (2), the mounting shell (9) is located at the interior of waterproof cover (8)
Side, and the inside of mounting shell (9) one end is equipped with internal screw thread, the outside of the sealing drum (7) is equipped with external screw thread, the sealing drum
(7) it is flexibly connected by screw thread with mounting shell (9), the outside of the mounting shell (9) is angularly equipped with multiple air inlet holes (13), institute
The outside that dust-extraction unit (11) is located at air inlet hole (13) is stated, and is fixed with the outer wall of mounting shell (9), the air-drying device (10) is solid
It is scheduled on the side of mounting shell (9) far from mounting plate (6), ultrasound partial discharge monitoring system (37) is located at the inside of mounting shell (9), and solid
It is scheduled on mounting plate (6).
2. a kind of power transformer high-precision local discharging detection device according to claim 1, it is characterised in that: described
Fixed device (5) include fixed plate (14), reset spring (15), supporting element (16), clamping block (17), limited block (18) and compress
Part (19), the connecting cylinder (4) are symmetrically arranged with opening (20) on the outside of pedestal (2) one end, and the fixed plate (14) is located at
The outside of opening (20), the fixed plate (14) pass through supporting element (16) and connecting cylinder (4) rotation close to the side of opening (20)
Connection, the one end of the fixed plate (14) far from pedestal (2) is fixed by reset spring (15) and connecting cylinder (4), and fixed plate
(14) other end is fixed with clamping block (17) close to the side of connecting cylinder (4), and the clamping block (17) and limited block (18) are clamped,
The limited block (18) is located in opening (20), and fixes with the outer wall of fixed cylinder (3), and the connecting cylinder (4) is close to pedestal (2)
One end offseted with pedestal (2) by compressing member (19).
3. a kind of power transformer high-precision local discharging detection device according to claim 2, it is characterised in that: described
Supporting element (16) includes supporting block (21), advance ball (22) and support shaft (23), the top of the supporting block (21) and fixation
Plate (14) is fixed, and the bottom of supporting block (21) is equipped with groove, and the advance ball (22) is slidably connected in groove, and slides
The bottom of ball (22) is fixed by support shaft (23) and the outer wall of connecting cylinder (4).
4. a kind of power transformer high-precision local discharging detection device according to claim 3, it is characterised in that: described
Compressing member (19) includes annular slab (24) and holddown spring (25), and the annular slab (24) is slidably socketed in the outer of fixed cylinder (3)
Side, and offset at the side of annular slab (24) and the port of connecting cylinder (4), the other side of the annular slab (24) is by compressing bullet
Spring (25) and pedestal (2) are fixed.
5. a kind of power transformer high-precision local discharging detection device according to claim 4, it is characterised in that: described
Holddown spring (25) is equipped with multiple, and multiple holddown springs (25) are angularly distributed between annular slab (24) and pedestal (2).
6. a kind of power transformer high-precision local discharging detection device according to claim 1, it is characterised in that: described
Waterproof cover (8) is equipped with stepped groove (26) close to the one end of connecting cylinder (4), and it is close to be fixed with first on the side wall of the stepped groove (26)
It is bonded at seal (27), first sealing ring (27) and the port of connecting cylinder (4).
7. a kind of power transformer high-precision local discharging detection device according to claim 1, it is characterised in that: described
Dust-extraction unit (11) includes dedusting shell (28) and dust removal filter element (29), and the dedusting shell (28) is located at the outside of air inlet hole (13),
And be fixedly attached on the outer wall of mounting shell (9), position corresponding with air inlet hole (13) is equipped with saturating on the outside of the dedusting shell (28)
Stomata (30), the dust removal filter element (29) are filled in the inside of dedusting shell (28).
8. a kind of power transformer high-precision local discharging detection device according to claim 1, it is characterised in that: described
Air-drying device (10) includes exhaust tube (31), driving motor (32), air draft flabellum (33) and bracket (34), the exhaust tube (31)
Side wall through mounting shell (9), and be fixedly connected with the side wall of mounting shell (9), pass through branch on the outside of the driving motor (32)
Frame (34) and the inner wall of exhaust tube (31) are fixed, and the output shaft of driving motor (32) and air draft flabellum (33) are fixed.
9. a kind of power transformer high-precision local discharging detection device according to claim 1, it is characterised in that: described
It is fixed on the inside of mounting shell (9) ring baffle (35), the ring baffle (35) is fixed with the close to the side of sealing drum (7)
It is bonded at two sealing rings (36), second sealing ring (36) and the port of sealing drum (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820792824.0U CN208520953U (en) | 2018-05-25 | 2018-05-25 | A kind of power transformer high-precision local discharging detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820792824.0U CN208520953U (en) | 2018-05-25 | 2018-05-25 | A kind of power transformer high-precision local discharging detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208520953U true CN208520953U (en) | 2019-02-19 |
Family
ID=65340234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820792824.0U Expired - Fee Related CN208520953U (en) | 2018-05-25 | 2018-05-25 | A kind of power transformer high-precision local discharging detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208520953U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490328A (en) * | 2018-05-25 | 2018-09-04 | 杭州顿恒科技有限公司 | A kind of power transformer high-precision local discharging detection device |
| CN114062863A (en) * | 2021-11-11 | 2022-02-18 | 国网四川省电力公司南充供电公司 | Transformer partial discharge monitoring devices convenient to installation |
-
2018
- 2018-05-25 CN CN201820792824.0U patent/CN208520953U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490328A (en) * | 2018-05-25 | 2018-09-04 | 杭州顿恒科技有限公司 | A kind of power transformer high-precision local discharging detection device |
| CN114062863A (en) * | 2021-11-11 | 2022-02-18 | 国网四川省电力公司南充供电公司 | Transformer partial discharge monitoring devices convenient to installation |
| CN114062863B (en) * | 2021-11-11 | 2023-07-04 | 国网四川省电力公司南充供电公司 | Transformer partial discharge monitoring device convenient to installation |
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Granted publication date: 20190219 |