CN208688618U - A kind of 35kV transformer oil level on-line monitoring component - Google Patents
A kind of 35kV transformer oil level on-line monitoring component Download PDFInfo
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- CN208688618U CN208688618U CN201821427892.3U CN201821427892U CN208688618U CN 208688618 U CN208688618 U CN 208688618U CN 201821427892 U CN201821427892 U CN 201821427892U CN 208688618 U CN208688618 U CN 208688618U
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- oil level
- level sensor
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Abstract
The utility model relates to a kind of technical solutions of 35kV transformer oil level on-line monitoring component, i.e. by the way that fuel level sensor is arranged in the hickey of the oil ga(u)ge pipe of transformer, fuel level sensor is connect with on-Line Monitor Device, enables the oil condition and alarm condition of on-Line Monitor Device real-time display transformer；One-channel signal can be divided into multiple signals by the electric current distribution transmitter in on-Line Monitor Device, and be transmitted to the Transformer Substation Online Monitoring System on backstage, to realize long-range monitoring.Regulation and operation maintenance personnel can obtain in real time the oil level numerical value of transformer on backstage, improve the comprehensive and reliability of transformer equipment situation acquisition, mitigate person works' amount；Once oil level quickly changes, alarm signal can be also issued in time, promptly responds and takes measures convenient for regulation and operation maintenance personnel, reduce the probability that failure occurs.
Description
Technical field
The utility model relates to a kind of 35kV transformer oil levels for monitoring field automatically for substation to monitor component on-line.
Background technique
Oil level is one of important monitoring parameters of oil-immersed transformer.When oil level is excessively high, inside transformer may cause
Oil pressure increases, while also will cause oil spilling；When oil level is too low, pasta can be lower than the big lid of transformer, cause lead or iron core sudden and violent
Dew in air, there is the danger for leading to internal flashover, especially when encountering transformer underrun or weather turns cold, oil level liquid
Under face also will continue to reduce, and cause security risk, while oil can make the insulation performance of insulating oil rapid with air contact surfaces increase
Drop.So in the operation of the transformer, when oil level is excessively high, Ying Jinhang drains the oil operation, and when oil level is too low, Ying Jinhang repairing is made
Industry, to keep qualified oil level.Therefore the too low or excessively high state of oil level is found in time and takes corresponding measure for ensuring electricity
The operation of power transformer safety is of great significance.
Currently, 35kV substation has all realized unattended, and in these substations, oil-immersed transformer accounts for about
The 98% of transformer sum.With the automation of transformation substations and intelligentized fast development, long-range remote signaling function is improved day by day, 35kV
Various electricity (voltage, electric current, frequency, power), non electrical quantity (temperature) signal of transformer can obtain in real time in remote back-office.But
On-line monitoring is also not implemented in oil level this critical data, can only be maked an inspection tour by operation maintenance personnel in obtained from scene by visual observations
It takes.The acquisition methods of this main transformer oil level have the following problems: (1) when transformer is since there's a sudden fall in temperature, serious seep occurs
When the reasons such as oil leak cause oil level rapid decrease, operation maintenance personnel is unable to learn in time；(2) when there are leakage of oil but nothing for transformer
Method stops labour processing in time, needs operation maintenance personnel to carry out high-frequency spy and patrols the variation of follow-up observation oil level, heavy workload；(3) due to oil level
Haggle over high, indoor transformer room's dark, observes by the naked eye record oil level and often there is certain deviation.
In order to understand transformer oil level situation of change in real time, reducing patrol officer's workload and make an inspection tour cost, there is an urgent need to
A kind of on-line monitoring system that can remotely observe transformer oil level and oil level rate of change in real time.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of 35kV transformer oil level is provided and is supervised online
Component is surveyed, it can carry out on-line real time monitoring to the oil level of transformer.
Realizing a kind of technical solution of above-mentioned purpose is: a kind of 35kV transformer oil level on-line monitoring component, including transformation
Device and the oil ga(u)ge pipe being arranged on the transformer, further include fuel level sensor and on-Line Monitor Device,
The top of the oil ga(u)ge pipe is equipped with hickey, and the fuel level sensor is plugged on described by the hickey
In oil ga(u)ge pipe, and it is connected and fixed by converting interface and the hickey；
The on-Line Monitor Device includes MCU chip and display screen, and the fuel level sensor is exported to the MCU chip
Current signal, the MCU chip control the data and alarm status that the display screen shows the fuel level sensor.
Further, the fuel level sensor is float type liquid level sensor.
Further, the on-Line Monitor Device further includes electric current distribution transmitter connection, and the electric current distributes transmitter
It receives the signal of the fuel level sensor, and exports at least two-way current signal, wherein current signal is to the MCU chip all the way
Output.
It further, further include Transformer Substation Online Monitoring System, the electric current distribution transmitter exists to the substation
Line monitoring system output current signal.
Further, relay is equipped between the Transformer Substation Online Monitoring System and electric current distribution transmitter
Device.
The technical solution of a kind of 35kV transformer oil level on-line monitoring component of the utility model, i.e., by transformer
Fuel level sensor is set in oil ga(u)ge pipe, and fuel level sensor is connect with on-Line Monitor Device, enables on-Line Monitor Device real-time
Show the oil condition and alarm condition of transformer；One-channel signal can be divided by the electric current distribution transmitter in on-Line Monitor Device
Multiple signals, and transmitted to the Transformer Substation Online Monitoring System on backstage, to realize long-range monitoring.Regulation and operation maintenance personnel can
The oil level numerical value for obtaining transformer in real time on backstage, improves the comprehensive and reliability of transformer equipment situation acquisition, mitigates
Person works' amount；Once oil level quickly changes, alarm signal can be also issued in time, make sound in time convenient for regulation and operation maintenance personnel
It should and take measures, reduce the probability that failure occurs.
Detailed description of the invention
Fig. 1 is that a kind of 35kV transformer oil level of the utility model monitors the structural schematic diagram of component on-line.
Specific embodiment
In order to preferably understand the technical solution of the utility model, below by specifically embodiment and combine
Attached drawing is described in detail:
Please refer to a kind of 35kV transformer oil level on-line monitoring component of Fig. 1 the utility model, including transformer 1 and setting
Oil ga(u)ge pipe 2 on the transformer further includes fuel level sensor 3 and on-Line Monitor Device 4.The type selecting of fuel level sensor 3 is research and development
One of the key of transformer oil level on-line monitoring system can be used to carry out the sensor of oil-level measurement to include integrated form ultrasonic wave
Sensor, Split ultrasonic sensor, capacitance type sensor, infrared type sensor, float-type transmitter etc..By above-mentioned sensing
Device according to precision, anti-interference ability, cost, whether there is or not several aspects such as check frequency to be assessed, final choice comprehensive performance is most
The fuel level sensor 3 that excellent float type liquid level sensor is detected as transformer oil level.The oil level number that fuel level sensor 3 will acquire
It is exported outward according to the electric current for being converted into 4-20MA, 4mA shows that liquid level is that 0,20mA shows that liquid level is maximum value, electric current during which
With the linear variation relation of liquid level.
The top of oil ga(u)ge pipe 2 is equipped with hickey 21, and fuel level sensor 3 is plugged in oil ga(u)ge pipe 2 by hickey 21,
And it is connected and fixed by converting interface 31 with hickey 21.
On-Line Monitor Device 4 includes MCU chip 41, electric current distribution transmitter 42 and display screen 43.Electric current distributes transmitter
42 receive the current signal of fuel level sensor 3, and convert at least two-way current signal output for the current signal.MCU chip
41 obtain wherein current signal all the way, are translated into oil level data and are shown on display screen 43, and by itself and setting
Alerting requirements are compared, same on display screen 43 when the data meet Alerting requirements (such as excessively high, too low, decline too fast)
When display alarm state.In practical applications, single on-Line Monitor Device 4 can be with the fuel level sensor of several transformers point
It does not connect, the oil level of multiple transformers is monitored simultaneously with realizing.
Transformer Substation Online Monitoring System 5 can also obtain the current signal that electric current distribution transmitter 42 exports, so that transformer
Other electricity that can be monitored on-line with substation of oil level data, non electrical quantity data integrated, carry out unified prison
It surveys, promptly responds and take measures convenient for regulation and operation maintenance personnel, reduce the probability that failure occurs.In order to increase alarm letter
Number transmission range, each road alarm signal is exported using relay 6.
It according to the actual demand of hardware, selects XS128 as MCU main control chip, current signal is implemented to acquire, and export
Related alarm status makes full use of its pin and associated hardware resource, while considering subsequent Function Extension, final design core
Heart processing circuit plate.The circuit board includes MCU, 16 road A/D conversion, the setting of 4 tunnels button, 1 128 × 64 liquid crystal interface, number
Pipe, Voltage stabilizing module etc. realize all data processing works of oil level on-Line Monitor Device.Be added to below main circuit board 5 by
Key, the function of being realized are respectively as follows: (1) KA1: resetting；(2) KEY1: page switching；(3) KEY2: cursor switching；(4) KEY3:
Add；(5) KEY4: subtract.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate that this is practical new
Type, and be not used as the restriction to the utility model, as long as in the spirit of the utility model, to the above
Variation, the modification of embodiment will all be fallen in the Claims scope of the utility model.
Claims (5)
1. a kind of 35kV transformer oil level monitors component on-line, including transformer and the oil ga(u)ge pipe being arranged on the transformer,
It is characterized by also including fuel level sensors and on-Line Monitor Device；
The top of the oil ga(u)ge pipe is equipped with hickey, and the fuel level sensor is plugged on the oil ga(u)ge by the hickey
In pipe, and it is connected and fixed by converting interface and the hickey；
The on-Line Monitor Device includes MCU chip and display screen, and the fuel level sensor is believed to MCU chip output electric current
Number, the MCU chip controls the data and alarm status that the display screen shows the fuel level sensor.
2. 35kV transformer oil level according to claim 1 monitors component on-line, which is characterized in that the fuel level sensor
For float type liquid level sensor.
3. a kind of 35kV transformer oil level according to claim 1 monitors component on-line, which is characterized in that the online prison
Surveying device further includes electric current distribution transmitter connection, and the electric current distribution transmitter receives the signal of the fuel level sensor, and
Output at least two-way current signal, wherein current signal is exported to the MCU chip all the way.
4. a kind of 35kV transformer oil level according to claim 3 monitors component on-line, which is characterized in that further include power transformation
It stands on-line monitoring system, the electric current distributes transmitter to the Transformer Substation Online Monitoring System output current signal.
5. a kind of 35kV transformer oil level according to claim 4 monitors component on-line, which is characterized in that in the power transformation
It stands and is equipped with relay between on-line monitoring system and electric current distribution transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821427892.3U CN208688618U (en) | 2018-08-31 | 2018-08-31 | A kind of 35kV transformer oil level on-line monitoring component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821427892.3U CN208688618U (en) | 2018-08-31 | 2018-08-31 | A kind of 35kV transformer oil level on-line monitoring component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208688618U true CN208688618U (en) | 2019-04-02 |
Family
ID=65887740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821427892.3U Active CN208688618U (en) | 2018-08-31 | 2018-08-31 | A kind of 35kV transformer oil level on-line monitoring component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208688618U (en) |
-
2018
- 2018-08-31 CN CN201821427892.3U patent/CN208688618U/en active Active
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