CN108981856A - Transformer level monitoring device, oil-immersed transformer and box-type substation - Google Patents
Transformer level monitoring device, oil-immersed transformer and box-type substation Download PDFInfo
- Publication number
- CN108981856A CN108981856A CN201810505139.XA CN201810505139A CN108981856A CN 108981856 A CN108981856 A CN 108981856A CN 201810505139 A CN201810505139 A CN 201810505139A CN 108981856 A CN108981856 A CN 108981856A
- Authority
- CN
- China
- Prior art keywords
- oil
- transformer
- liquid level
- normally closed
- immersed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/296—Acoustic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/56—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements
- G01F23/62—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements using magnetically actuated indicating means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/404—Protective devices specially adapted for fluid filled transformers
Abstract
The present invention provides a kind of transformer level monitoring device, oil-immersed transformer and box-type substations, it is related to the technical field of transformer level monitoring, it applies in oil-immersed transformer, comprising: trigger, normally closed switch, surface acoustic wave sensor, transmitting antenna, receiving antenna, display；Transmitting antenna is connected by normally closed switch with surface acoustic wave sensor, and transmitting antenna is connected with receiving antenna long distance wireless, and receiving antenna is connected with display；Surface acoustic wave sensor is used to detect the liquid level variation of oil-immersed transformer, and liquid level is changed and is sent to display by transmitting antenna and receiving antenna；Trigger is arranged in the fuel tank of oil-immersed transformer, when perceiving the actual height of liquid level of oil-immersed transformer lower than preset height, normally closed switch is triggered to disconnect, so that surface acoustic wave sensor, which stops changing liquid level, is sent to display by transmitting antenna and receiving antenna, the monitoring for realizing long-range liquid level variation, improves monitoring efficiency.
Description
Technical field
The present invention relates to transformer level monitoring technical fields, more particularly, to a kind of transformer level monitoring device, oil
Immersion transformer and box-type substation.
Background technique
Transformer liquid level has reacted the seal degree of oil-immersed transformer, if has the situation of effusion, if oil immersed type
Transformer effusion may cause the damage of entire transformer.So safe and reliable operation of the monitoring of liquid level for transformer
It is extremely important.The monitoring mode of usual transformer liquid level is to carry out visualizing monitoring by installation liquidometer, floating in liquidometer
Son shows the height of liquid level with liquid level variation.Due to this method it is at low cost, it is easy to accomplish etc. receive significant attention, but this method
It can not remotely monitor, can only be checked by field labeled visualizing, check low efficiency.
Summary of the invention
In view of this, the purpose of the present invention is to provide transformer level monitoring device, oil-immersed transformer and box changes
Power station realizes the monitoring of long-range liquid level variation, improves monitoring efficiency.
In a first aspect, apply the embodiment of the invention provides a kind of transformer level monitoring device in oil-immersed transformer,
It include: trigger, normally closed switch, surface acoustic wave sensor, transmitting antenna, receiving antenna, display；The transmitting antenna passes through
The normally closed switch is connected with the surface acoustic wave sensor, and the transmitting antenna is connected with the receiving antenna long distance wireless,
The receiving antenna is connected with the display；
The surface acoustic wave sensor is used to detect the liquid level variation of the oil-immersed transformer, and the liquid level is changed
The display is sent to by the transmitting antenna and the receiving antenna；
The trigger is arranged in the fuel tank of the oil-immersed transformer, in the liquid for perceiving the oil-immersed transformer
It when the actual height of position is lower than preset height, triggers the normally closed switch and disconnects, so that surface acoustic wave sensor stopping will
The liquid level variation is sent to the display by the transmitting antenna and the receiving antenna.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein institute
Stating trigger includes: the first component and second component, and the first component is connected with second component；Wherein, second component and institute
State normally closed switch matching setting；
The first component is arranged on the liquid level in the fuel tank of the oil-immersed transformer, for perceiving the oil immersed type
The liquid level of transformer changes；
The second component is arranged in the oil fuel tube of the oil-immersed transformer, for perceiving institute in the first component
When stating the actual height of the liquid level of oil-immersed transformer lower than preset height, triggers the normally closed switch and disconnect.
With reference to first aspect, the embodiment of the invention provides second of possible embodiments of first aspect, wherein institute
Stating the first component is oil float, and the second component is magnet.
With reference to first aspect, the embodiment of the invention provides the third possible embodiments of first aspect, wherein institute
Stating normally closed switch is magnetic switch, and the magnetic switch is arranged in outside the oil fuel tube of the oil-immersed transformer.
With reference to first aspect, the embodiment of the invention provides the 4th kind of possible embodiments of first aspect, wherein also
It include: controller and alarm, the controller is connected with the normally closed switch；The controller is connected with the alarm；
The controller is used for after detecting that the normally closed switch disconnects, and controls the alarm equipment alarm.
With reference to first aspect, the embodiment of the invention provides the 5th kind of possible embodiments of first aspect, wherein institute
Stating alarm includes loudspeaker.
Second aspect, the embodiment of the present invention also provide a kind of oil-immersed transformer, comprising: transformer body and according to above-mentioned
The described in any item transformer level monitoring devices of embodiment；The transformer level monitoring device is arranged in the transformer sheet
On body.
The third aspect, the embodiment of the present invention also provide a kind of box-type substation, comprising: the oil according to above-described embodiment
Immersion transformer.
The embodiment of the present invention brings following the utility model has the advantages that detecting the liquid of oil-immersed transformer by surface acoustic wave sensor
Position variation, and liquid level is changed, display is sent to by transmitting antenna and receiving antenna, meanwhile, trigger is arranged in oil immersed type
In the fuel tank of transformer, to trigger normally closed opens when perceiving the actual height of liquid level of oil-immersed transformer lower than preset height
Shutdown is opened, so that surface acoustic wave sensor, which stops changing liquid level, is sent to display by transmitting antenna and receiving antenna, this
Invention can be realized the monitoring of long-range liquid level variation, can also be observed in the display not by transmitting antenna and receiving antenna
Determine that the actual height of the liquid level of oil-immersed transformer is lower than preset height, finds oil-immersed transformer in time to liquid level signal
Seal degree, improve monitoring efficiency.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structure chart of transformer level monitoring device provided by one embodiment of the present invention；
The operation of transformer level monitoring device when Fig. 2 is oil-immersed transformer normal condition provided in an embodiment of the present invention
Status diagram；
Fig. 3 is the operation of transformer level monitoring device when oil-immersed transformer provided in an embodiment of the present invention lacks oil condition
Status diagram；
Fig. 4 is the structure chart for the transformer level monitoring device that another embodiment of the present invention provides.
Icon:
11- trigger；12- normally closed switch；13- surface acoustic wave sensor；14- transmitting antenna；15- receiving antenna；16- is aobvious
Show device；17- oil float；18- magnet；19- magnetic switch；21- controller；22- alarm.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Currently, the monitoring mode of transformer liquid level is to carry out visualizing monitoring by installation liquidometer, it is floating in liquidometer
Son shows the height of liquid level with liquid level variation.Due to this method it is at low cost, it is easy to accomplish etc. receive significant attention, but this method
It can not remotely monitor, can only be checked by field labeled visualizing, check low efficiency.
Based on this, a kind of transformer level monitoring device provided in an embodiment of the present invention, change provided in an embodiment of the present invention
Depressor level monitoring device is applied on oil-immersed transformer.Wherein, oil-immersed transformer is mainly exhausted as transformer using oil
Edge means, and make cooling medium, such as oil, oil, oil immersed water cool and forced oil-circulation etc. by oil.Oil immersed type becomes
The main component of depressor is cored, winding, fuel tank, conservator, respirator, explosion stack (pressure relief valve), radiator, insulation sleeve
Pipe, tap switch, gas relay, thermometer, the composition such as oil purifier.
As shown in connection with fig. 1, the structure chart of transformer level monitoring device is shown, comprising: trigger 11, normally closed switch
12, surface acoustic wave sensor 13, transmitting antenna 14, receiving antenna 15, display 16；Transmitting antenna 14 by normally closed switch 12 with
Surface acoustic wave sensor is connected, and transmitting antenna 14 is connected with 15 long distance wireless of receiving antenna, receiving antenna 15 and 16 phase of display
Even.
Wherein, surface acoustic wave sensor 13 is used to detect the liquid level variation of oil-immersed transformer, and liquid level variation is passed through
Transmitting antenna 14 and receiving antenna 15 are sent to display 16；
16 specific works of display are as follows: the echo-signal that surface acoustic wave sensor 13 is sent is read, then by echo-signal
It is shown, change the liquid level of personnel monitoring's oil-immersed transformer.Wherein, display 16 may include display
Screen.
Surface wave sensor is that the frequency based on ultrasonic surface wave oscillator changes with the variation of measurand, when
When surface acoustic wave sensor 13 works, it can detecte the liquid level variation of oil-immersed transformer, send echo-signal to display 16.
Transmitting antenna 14 and receiving antenna 15 are antenna, i.e. wireless device, the liquid level that surface wave sensor 13 detects
Information is converted to electromagnetic radiation by transmitting antenna 14 in the form of high-frequency current and goes out, and receiving antenna 15 receives corresponding
When electromagnetic wave signal, electromagnetic wave signal is converted into high-frequency current and is entered in display 16, that is, display 16 has obtained surface
The echo-signal of wave sensor.Wherein, liquid level information is carried in electromagnetic wave signal.
Trigger 11 is arranged in the fuel tank of oil-immersed transformer, in the practical height of the liquid level of perception oil-immersed transformer
When degree is lower than preset height, triggering normally closed switch 12 is disconnected, so that surface acoustic wave sensor 13 stops liquid level variation passing through hair
It penetrates antenna 14 and receiving antenna 15 is sent to display 16.
In summary, transformer level monitoring device provided in an embodiment of the present invention, can pass through surface acoustic wave sensor
The liquid level variation of oil-immersed transformer is detected, and liquid level is changed, display is sent to by transmitting antenna and receiving antenna, together
When, trigger is arranged in the fuel tank of oil-immersed transformer, is lower than with the actual height in the liquid level of perception oil-immersed transformer
When preset height, triggering normally closed switch is disconnected, so that surface acoustic wave sensor stops liquid level variation passing through transmitting antenna and connect
It receives antenna and is sent to display, the present invention can realize the monitoring of long-range liquid level variation, also by transmitting antenna and receiving antenna
Liquid level signal can not observed in the display and determine that the actual height of the liquid level of oil-immersed transformer is lower than preset height,
The seal degree of discovery oil-immersed transformer in time, improves monitoring efficiency.
In some alternative embodiments, trigger 11 includes: the first component and second component, the first component and second
Part is connected；Second component, which is connected, matches setting with normally closed switch；
The first component is arranged on the liquid level in the fuel tank of oil-immersed transformer, for perceiving the liquid level of oil-immersed transformer
Variation；Optionally, the first component is oil float 17.
Second component is arranged in the oil fuel tube of oil-immersed transformer, in first component perception oil-immersed transformer
When the actual height of liquid level is lower than preset height, triggering normally closed switch 12 is disconnected.Optionally, normally closed switch is magnetic switch 19,
The second component is magnet 18.
Fig. 2 shows the operating status schematic diagrames of transformer level monitoring device when oil-immersed transformer normal condition, such as
Shown in Fig. 2, oil float 17 is arranged on the liquid level in the fuel tank of oil-immersed transformer, since the density of oil float 17 is less than the close of oil
Degree, so oil float 17 is swum on pasta.Magnet 18 is connected by bar 20 with oil float 17, and magnet 18 is arranged in oil-immersed transformer
Oil fuel tube in, magnetic switch 19 is arranged in outside the oil fuel tube of oil-immersed transformer, and magnetic switch 19 matches setting with magnet 18.
In oil-immersed transformer normal condition, i.e., when oil level is higher than preset height, magnet 18 is far from magnetic switch 19, magnetic switch 19
Closure, surface acoustic wave sensor 13 change liquid level normal through transmitting after the liquid level variation of detection oil-immersed transformer
Antenna 14 and receiving antenna 15 are sent to display 16.
Fig. 3 shows the operating status schematic diagram of transformer level monitoring device when oil-immersed transformer lacks oil condition, such as
Shown in Fig. 3, when oil-immersed transformer lacks oil condition, i.e., when oil level is lower than preset height, magnet 18 is close to magnetic switch 19, magnetic
Control switch 19 is become to disconnect by closure, although the liquid level that surface acoustic wave sensor 13 can also arrive detection oil-immersed transformer becomes
Change, but it is separated due to surface acoustic wave sensor 13 and transmitting antenna 14, so, it cannot be by liquid level variation normal through hair
It penetrates antenna 14 and receiving antenna 15 is sent to display 16, display 16 can not receive the echo letter of the sending of surface acoustic wave sensor 13
Number, when display 16 can not receive the echo-signal of the sending of surface acoustic wave sensor 13, at this moment staff is also known that oil immersed type
The liquid level of transformer is lower than preset height, and oil-immersed transformer occurs the situation of effusion, staff is promoted to repair oil in time
Immersion transformer.
As shown in connection with fig. 4, transformer level monitoring device further include: controller 21 and alarm 22, controller 21 and often
Make and break closes 12 and is connected；Controller 21 is connected with alarm 22；
Controller 21 is used for after detecting that normally closed switch 12 disconnects, and control alarm 22 is alarmed.
Specifically, after detecting that normally closed switch 12 disconnects, i.e., the liquid level of oil-immersed transformer is lower than preset height, oil
The case where situation of effusion occurs for immersion transformer, and controller 21 is disconnected by normally closed switch 12, control alarm 22 are alarmed,
Staff can be reminded to notice that effusion occurs for oil-immersed transformer in time, promoted when effusion occurs for oil-immersed transformer
Staff is set to repair oil-immersed transformer in time.
Optionally, alarm 22 includes loudspeaker.
The embodiment of the invention also provides a kind of oil-immersed transformers, comprising: transformer body and according to above-described embodiment
Described in any item transformer level monitoring devices；The transformer level monitoring device is arranged on the transformer body.
Wherein, transformer body includes: fuel tank and transformation element.
Transformer level monitoring device includes: trigger, normally closed switch, surface acoustic wave sensor, transmitting antenna, receives day
Line, display.
The liquid level that oil-immersed transformer can be detected by surface acoustic wave sensor changes, and liquid level variation is passed through transmitting
Antenna and receiving antenna are sent to display, meanwhile, trigger is arranged in the fuel tank of oil-immersed transformer, in perception oil immersion
When the actual height of the liquid level of formula transformer is lower than preset height, triggering normally closed switch is disconnected, so that surface acoustic wave sensor stops
Only liquid level is changed, display is sent to by transmitting antenna and receiving antenna, the present invention can pass through transmitting antenna and reception day
Line realizes the monitoring of long-range liquid level variation, can also not observe liquid level signal in the display and determine oil-immersed transformer
Liquid level actual height be lower than preset height, in time find oil-immersed transformer seal degree, improve monitoring efficiency.
The technical effect of transformer level monitoring device provided by the embodiment of the present invention, realization principle and generation is with before
The embodiment for stating transformer level monitoring device is identical, and to briefly describe, the present embodiment part does not refer to place, can refer to aforementioned
Corresponding contents in embodiment.
The embodiment of the invention also provides a kind of box-type substations, comprising: the oil immersed type according to above-described embodiment becomes
Depressor.
Certainly, box-type substation can also include: switchgear, breaker etc. secondary device.
In addition, due to oil-immersed transformer, the technical effect and aforementioned oil-immersed transformer of realization principle and generation
Embodiment is identical, and to briefly describe, the present embodiment part does not refer to place, can refer to corresponding contents in previous embodiment.
Unless specifically stated otherwise, the opposite step of the component and step that otherwise illustrate in these embodiments, digital table
It is not limit the scope of the invention up to formula and numerical value.
In all examples being illustrated and described herein, any occurrence should be construed as merely illustratively, without
It is as limitation, therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. a kind of transformer level monitoring device, which is characterized in that apply in oil-immersed transformer, comprising: trigger normally closed is opened
Pass, surface acoustic wave sensor, transmitting antenna, receiving antenna, display；The transmitting antenna by the normally closed switch with it is described
Surface acoustic wave sensor be connected, the transmitting antenna is connected with the receiving antenna long distance wireless, the receiving antenna with it is described
Display is connected；
The surface acoustic wave sensor is used to detect the liquid level variation of the oil-immersed transformer, and liquid level variation is passed through
The transmitting antenna and the receiving antenna are sent to the display；
The trigger is arranged in the fuel tank of the oil-immersed transformer, to perceive the liquid level of the oil-immersed transformer
It when actual height is lower than preset height, triggers the normally closed switch and disconnects, so that surface acoustic wave sensor stopping will be described
Liquid level variation is sent to the display by the transmitting antenna and the receiving antenna.
2. transformer level monitoring device according to claim 1, which is characterized in that the trigger includes: first
Part and second component, the first component are connected with second component；Wherein, second component matches setting with the normally closed switch；
The first component is arranged on the liquid level in the fuel tank of the oil-immersed transformer, for perceiving the oil immersed type transformation
The liquid level of device changes；
The second component is arranged in the oil fuel tube of the oil-immersed transformer, for perceiving the oil in the first component
When the actual height of the liquid level of immersion transformer is lower than preset height, triggers the normally closed switch and disconnect.
3. transformer level monitoring device according to claim 2, which is characterized in that the first component is oil float, institute
Stating second component is magnet.
4. transformer level monitoring device according to claim 3, which is characterized in that the normally closed switch is opened for magnetic control
It closes, the magnetic switch is arranged in outside the oil fuel tube of the oil-immersed transformer.
5. transformer level monitoring device according to claim 1, which is characterized in that further include: controller and alarm,
The controller is connected with the normally closed switch；The controller is connected with the alarm；
The controller is used for after detecting that the normally closed switch disconnects, and controls the alarm equipment alarm.
6. transformer level monitoring device according to claim 5, which is characterized in that the alarm includes loudspeaker.
7. a kind of oil-immersed transformer characterized by comprising described in transformer body and according to claim 1-6 any one
Transformer level monitoring device；The transformer level monitoring device is arranged on the transformer body.
8. a kind of box-type substation characterized by comprising oil-immersed transformer according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810505139.XA CN108981856A (en) | 2018-05-23 | 2018-05-23 | Transformer level monitoring device, oil-immersed transformer and box-type substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810505139.XA CN108981856A (en) | 2018-05-23 | 2018-05-23 | Transformer level monitoring device, oil-immersed transformer and box-type substation |
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| Publication Number | Publication Date |
|---|---|
| CN108981856A true CN108981856A (en) | 2018-12-11 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810505139.XA Pending CN108981856A (en) | 2018-05-23 | 2018-05-23 | Transformer level monitoring device, oil-immersed transformer and box-type substation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112053471A (en) * | 2020-08-11 | 2020-12-08 | 华翔翔能科技股份有限公司 | Transformer with monitoring device |
| WO2023105208A1 (en) * | 2021-12-07 | 2023-06-15 | Verder Limited | Peristaltic pump |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860487A (en) * | 2017-11-23 | 2018-03-30 | 上海置信电气股份有限公司 | The oil level and oil temperature integration monitoring method and device of distribution transformer |
| CN107941367A (en) * | 2017-12-20 | 2018-04-20 | 国网上海市电力公司 | 10kV distribution transformer oil temperatures oil level monitors and pressure release integrated apparatus |
-
2018
- 2018-05-23 CN CN201810505139.XA patent/CN108981856A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860487A (en) * | 2017-11-23 | 2018-03-30 | 上海置信电气股份有限公司 | The oil level and oil temperature integration monitoring method and device of distribution transformer |
| CN107941367A (en) * | 2017-12-20 | 2018-04-20 | 国网上海市电力公司 | 10kV distribution transformer oil temperatures oil level monitors and pressure release integrated apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112053471A (en) * | 2020-08-11 | 2020-12-08 | 华翔翔能科技股份有限公司 | Transformer with monitoring device |
| WO2023105208A1 (en) * | 2021-12-07 | 2023-06-15 | Verder Limited | Peristaltic pump |
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Effective date of registration: 20200716 Address after: East District, 1st floor, building 2, No. 588-590, Tianshan West Road, Changning District, Shanghai 200050 Applicant after: Shanghai Zhixin Intelligent Electric Co., Ltd Applicant after: OFWELT(SUZHOU)TECHNOLOGIES Co.,Ltd. Applicant after: SHANGHAI ZHIXIN ELECTRIC Co.,Ltd. Applicant after: JIANGSU HONGYUAN ELECTRIC Co.,Ltd. Address before: 200050 No. 2239 Hongqiao Road, Changning District, Shanghai Applicant before: SHANGHAI ZHIXING ELECTRIC Co.,Ltd. Applicant before: OFWELT(SUZHOU)TECHNOLOGIES Co.,Ltd. Applicant before: SHANGHAI ZHIXIN ELECTRIC Co.,Ltd. Applicant before: JIANGSU HONGYUAN ELECTRIC Co.,Ltd. |
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Application publication date: 20181211 |