CN109256262A - A kind of air cooling equipment of transformer - Google Patents
A kind of air cooling equipment of transformer Download PDFInfo
- Publication number
- CN109256262A CN109256262A CN201811144442.8A CN201811144442A CN109256262A CN 109256262 A CN109256262 A CN 109256262A CN 201811144442 A CN201811144442 A CN 201811144442A CN 109256262 A CN109256262 A CN 109256262A
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- CN
- China
- Prior art keywords
- pin
- chip microcontroller
- transformer
- solid
- temperature sensor
- 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.)
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Classifications
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- 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
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
Abstract
The invention discloses a kind of air cooling equipments of transformer, belong to transformer Cooling equipment technical field.Automatic control system including the cooling fan and control motor that are driven by motor；The automatic control system includes the temperature sensor Z for measuring transformer temperature, the single-chip microcontroller U1 that connect with temperature sensor Z and the solid-state relay R by single-chip microcontroller U1 control triggering state；Motor is connect by solid-state relay R with three phase mains.The present invention uses the on-off between solid-state relay control cooling fan and three phase mains, and the triggering state of solid-state relay is controlled using the cooperation of single-chip microcontroller and temperature sensor, the setting improves the measurement accuracy for transformer temperature and can carry out the adjustment of cooling fan according to the real time temperature of transformer, can not only guarantee that the cooling effect of transformer can also be prevented cooling fan be constantly in starting state and caused by energy waste and cooling fan service life reduction.
Description
Technical field
The present invention relates to a kind of air cooling equipments of transformer, belong to transformer Cooling equipment technical field.
Background technique
Currently, reducing the running temperature of main transformer in substation, it will usually install a set of the forced air cooling to main transformer.
The operation of air cooling system uses artificial start and stop mode.This artificial start and stop mode has the disadvantage in that (1) increases operations staff
Labor intensity.(2) when main transformer rises main degree temperature due to load increase or variation of ambient temperature etc. from timely
Starting air cooling system, which carries out cooling, makes the higher service life for reducing main transformer of main degree temperature rise, also will cause when serious and burns main transformer
Major accident.On the other hand air cooling system cannot be made out of service in time to cause the big of electric energy when the decline of main degree temperature
Amount waste.
Summary of the invention
The object of the present invention is to provide one kind can be according to the air cooling equipment of the transformer of temperature automatic control.
To achieve the goals above, the technical solution adopted by the present invention is that:
A kind of air cooling equipment of transformer, the automatic control system including the cooling fan and control motor that are driven by motor；Institute
Stating automatic control system includes temperature sensor Z, the single-chip microcontroller U1 that connect with temperature sensor Z for measuring transformer temperature
And the solid-state relay R by single-chip microcontroller U1 control triggering state；Motor is connect by solid-state relay R with three phase mains.
Technical solution of the present invention further improvement lies in that: single-chip microcontroller U1 is STC12C5608AD, and temperature sensor Z is
DS18B20；The pin 1 of temperature sensor Z is grounded, and pin 3 connects to power supply, and pin 2 is connect with the pin 18 of single-chip microcontroller U1, temperature
The pin 2 of degree sensor Z is also connected to power supply by resistance R2；Single-chip microcontroller U1 passes through the letter of triode Q1 and solid-state relay R
The connection of number input terminal, the pin 27 of single-chip microcontroller U1 are connect with the base stage of triode Q1, and the emitter of triode is grounded, triode
The collector of Q1 is connect with the signal input terminal 8 of solid-state relay R；Triode Q1 is NPN type.
Technical solution of the present invention further improvement lies in that: between the pin 27 of single-chip microcontroller U1 and the base stage of triode Q1
Resistance R1 is set, resistance R3 is set between the collector of triode Q1 and the signal input terminal 8 of solid-state relay R.
Technical solution of the present invention further improvement lies in that: automatic control system further includes for displays temperature sensor Z
The display unit of the temperature of measurement, the display unit are the light-emitting diode display H connecting with single-chip microcontroller U1.
Technical solution of the present invention further improvement lies in that: pin a, b, c, d, e, f, g of light-emitting diode display H respectively with list
The pin 4,5,8,9,10,11 of piece machine U1 connects, the pin com1 and pin com2 of light-emitting diode display H respectively with the pipe of single-chip microcontroller
Foot 1 and pin 2 connect.
By adopting the above-described technical solution, the technical effect that the present invention obtains has:
Using the on-off between solid-state relay control cooling fan and three phase mains in the present invention, and further use monolithic
The cooperation of machine and temperature sensor controls the triggering state of solid-state relay, which improves the survey for transformer temperature
Accuracy of measurement and the adjustment that cooling fan can be carried out according to the real time temperature of transformer, can not only guarantee the cooling for transformer
Effect can also prevent cooling fan be constantly in starting state and caused by energy waste and cooling fan service life reduction.
Solid-state relay high sensitivity, strong interference immunity, the operation is stable used in the present invention, are suitable for the work of transformer
Make environment.
Detailed description of the invention
Fig. 1 is schematic diagram of the present invention.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is described in further details the present invention:
The invention discloses a kind of air cooling equipment of transformer, which is the transformer Cooling for substation, and here is
Specific embodiment:
The air cooling equipment of one of present invention transformer, the automatic control including the cooling fan and control motor that are driven by motor
System processed.The air cooling equipment carries out wind cooling temperature lowering to transformer using cooling fan, can guarantee safety, and convenient for control
System.
Automatic control system in the present invention includes the temperature sensor Z and temperature sensing for measuring transformer temperature
The single-chip microcontroller U1 of the device Z connection and solid-state relay R that triggering state is controlled by single-chip microcontroller U1.Temperature sensor Z setting is becoming
It is capable of the temperature of real-time measurement transformer on the shell of depressor, temperature sensor Z is connect with single-chip microcontroller U1 by cable, Neng Goujin
The transmitting of row information, after single-chip microcontroller U1 judges by analysis according to the information that temperature sensor Z is transmitted, output control signal.It is single
Piece machine U1 controls the triggering state of solid-state relay R by output signal.Motor is connected by solid-state relay R and three phase mains
It connects, solid-state relay R controls the on-off between three phase mains and motor, and then controls the rotation of cooling fan.
The control circuit of automatic control system in the present invention is by following setting: as shown in Figure 1, selected in control circuit
Single-chip microcontroller U1 is STC12C5608AD, and the temperature sensor Z of selection is DS18B20.Wherein, the pin 1 of temperature sensor Z connects
Ground, pin 3 connect to power supply, and pin 2 is connect with the pin 18 of single-chip microcontroller U1, and the pin 2 of temperature sensor Z also passes through resistance R2
It connects to power supply.The pin 2 of temperature sensor Z is signal output end, and the signal of measurement can be sent to the pipe of single-chip microcontroller U1
Foot 18.The output end of single-chip microcontroller U1 is connect with solid-state relay R, thus the state of output signal control solid-state relay R.
Specific connection is that single-chip microcontroller U1 is connect by triode Q1 with the signal input part of solid-state relay R, the pin of single-chip microcontroller U1
27 connect with the base stage of triode Q1, the emitter ground connection of triode, the collector of triode Q1 and the letter of solid-state relay R
Number input terminal 8 connects.Triode Q1 in the circuit is NPN type.Single-chip microcontroller U1, temperature sensor Z in control circuit and
Solid-state relay R uses 5V power supply power supply.
In specific setting, resistance R1 is set between the pin 27 of single-chip microcontroller U1 and the base stage of triode Q1, three
Resistance R3 is set between the collector of pole pipe Q1 and the signal input terminal 8 of solid-state relay R.Resistance R1 and resistance R3 and electricity
Resistance R2 plays the role of current limliting decompression, to protect the safety of electronic component.
As shown in Figure 1, further, automatic control system further includes the temperature for displays temperature sensor Z measurement
Display unit, the display unit are the light-emitting diode display H connecting with single-chip microcontroller U1.Temperature sensor Z is by the temperature information of measurement
Single-chip microcontroller U1 is sent to, by being shown on display unit after single-chip microcontroller U1 analytical calculation.The company of light-emitting diode display H and single-chip microcontroller U1
The relationship of connecing is that pin a, b, c, d, e, f, g of light-emitting diode display H is connect with the pin of single-chip microcontroller U1 4,5,8,9,10,11 respectively,
The pin com1 and pin com2 of light-emitting diode display H is connect with the pin of single-chip microcontroller 1 and pin 2 respectively.
Working principle of the present invention is as follows: make to become when by certain reason (such as: load increases or variation of ambient temperature etc.)
When depressor temperature is more than preset temperature (such as 80 DEG C), temperature that the temperature sensor Z being tightly attached on main transformer shell will be sensed
Degree signal is transmitted in single-chip microcontroller U1, so that its 27 foot of pin output high level is led triode Q1 through resistance R1 through its internal arithmetic
It is logical to be connected to trigger solid-state relay R, cooling fan work once electrified.When main transformer temperature drops to safe temperature (such as 50 DEG C)
When, so that its pin 27 is exported low level through single-chip microcontroller U1 internal arithmetic, triode Q1 cut-off, solid-state relay R is because losing triggering
Electric current and disconnect, cooling fan power loss stops working.Light-emitting diode display H can show in real time transformer temperature in above process
It shows so as to real-time detection.
Using the on-off between solid-state relay control cooling fan and three phase mains in the present invention, and further use
The cooperation of single-chip microcontroller and temperature sensor controls the triggering state of solid-state relay, which improves for transformer temperature
Measurement accuracy and can according to the real time temperature of transformer carry out cooling fan adjustment, can not only guarantee for transformer
Cooling effect can also prevent cooling fan be constantly in starting state and caused by energy waste and cooling fan service life
It reduces.The present invention can reduce the unnecessary waste of electric energy.The setting of solid-state relay is particularly suitable for the device to power transformation
The transformer stood cools.
The present invention by solid-state relay and cooperate with corresponding control circuit, realize for cooling fan in real time from
Dynamic to adjust control, the plant automation degree is high, and easy to use, control is accurate.
Claims (5)
1. a kind of air cooling equipment of transformer, it is characterised in that: including the cooling fan that is driven by motor and control motor from
Autocontrol system；The automatic control system includes the temperature sensor Z and temperature sensor Z for measuring transformer temperature
The single-chip microcontroller U1 of the connection and solid-state relay R that triggering state is controlled by single-chip microcontroller U1；Motor passes through solid-state relay R and three
The connection of phase power supply.
2. a kind of air cooling equipment of transformer according to claim 1, it is characterised in that: single-chip microcontroller U1 is
STC12C5608AD, temperature sensor Z are DS18B20；The pin 1 of temperature sensor Z is grounded, and pin 3 connects to power supply, pin
2 connect with the pin 18 of single-chip microcontroller U1, and the pin 2 of temperature sensor Z is also connected to power supply by resistance R2；Single-chip microcontroller U1 passes through
Triode Q1 is connect with the signal input part of solid-state relay R, and the pin 27 of single-chip microcontroller U1 is connect with the base stage of triode Q1,
The emitter of triode is grounded, and the collector of triode Q1 is connect with the signal input terminal 8 of solid-state relay R；Triode Q1
For NPN type.
3. a kind of air cooling equipment of transformer according to claim 2, it is characterised in that: the pin 27 of single-chip microcontroller U1 with
Resistance R1 is set between the base stage of triode Q1, between the collector of triode Q1 and the signal input terminal 8 of solid-state relay R
Resistance R3 is set.
4. according to a kind of described in any item air cooling equipments of transformer of Claims 2 or 3, it is characterised in that: automatically control system
System further includes the display unit for the temperature of displays temperature sensor Z measurement, and the display unit is to connect with single-chip microcontroller U1
Light-emitting diode display H.
5. a kind of air cooling equipment of transformer according to claim 4, it is characterised in that: pin a, b of light-emitting diode display H,
C, d, e, f, g are connect with the pin of single-chip microcontroller U1 4,5,8,9,10,11 respectively, the pin com1 and pin com2 of light-emitting diode display H
It is connect respectively with the pin of single-chip microcontroller 1 and pin 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811144442.8A CN109256262A (en) | 2018-09-29 | 2018-09-29 | A kind of air cooling equipment of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811144442.8A CN109256262A (en) | 2018-09-29 | 2018-09-29 | A kind of air cooling equipment of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109256262A true CN109256262A (en) | 2019-01-22 |
Family
ID=65047013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811144442.8A Pending CN109256262A (en) | 2018-09-29 | 2018-09-29 | A kind of air cooling equipment of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109256262A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518813A (en) * | 2019-08-30 | 2019-11-29 | 国网山东省电力公司济南市章丘区供电公司 | A kind of power conversion apparatus radiator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202120712U (en) * | 2011-06-17 | 2012-01-18 | 四川省电力公司绵阳电业局 | Main transformer forced oil circulation air cooling intelligent control device |
| CN203394809U (en) * | 2013-02-05 | 2014-01-15 | 玉溪大红山矿业有限公司 | Control device for cooling fan of transformer |
| US20150016060A1 (en) * | 2011-12-19 | 2015-01-15 | Abb Technology Ag | Apparatus And Method For Cooling A Transformer Having A Non-Linear Core |
| CN205384528U (en) * | 2016-03-14 | 2016-07-13 | 寇兴磊 | Regulator cubicle with temperature control system |
-
2018
- 2018-09-29 CN CN201811144442.8A patent/CN109256262A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202120712U (en) * | 2011-06-17 | 2012-01-18 | 四川省电力公司绵阳电业局 | Main transformer forced oil circulation air cooling intelligent control device |
| US20150016060A1 (en) * | 2011-12-19 | 2015-01-15 | Abb Technology Ag | Apparatus And Method For Cooling A Transformer Having A Non-Linear Core |
| CN203394809U (en) * | 2013-02-05 | 2014-01-15 | 玉溪大红山矿业有限公司 | Control device for cooling fan of transformer |
| CN205384528U (en) * | 2016-03-14 | 2016-07-13 | 寇兴磊 | Regulator cubicle with temperature control system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518813A (en) * | 2019-08-30 | 2019-11-29 | 国网山东省电力公司济南市章丘区供电公司 | A kind of power conversion apparatus radiator |
| CN110518813B (en) * | 2019-08-30 | 2021-04-13 | 国网山东省电力公司济南市章丘区供电公司 | Heat dissipation device for power conversion equipment |
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Application publication date: 20190122 |