CN209087501U - A kind of air cooling equipment of transformer - Google Patents
A kind of air cooling equipment of transformer Download PDFInfo
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- CN209087501U CN209087501U CN201821595978.7U CN201821595978U CN209087501U CN 209087501 U CN209087501 U CN 209087501U CN 201821595978 U CN201821595978 U CN 201821595978U CN 209087501 U CN209087501 U CN 209087501U
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- 238000001816 cooling Methods 0.000 title claims abstract description 48
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000036413 temperature sense Effects 0.000 description 1
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Abstract
The utility model 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 utility model 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 utility model 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.
Utility model content
The purpose of the utility model 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 in the utility model is:
A kind of air cooling equipment of transformer, the automatic control system including the cooling fan and control motor that are driven by motor
System；The automatic control system includes temperature sensor Z for measuring transformer temperature, the list that connect with temperature sensor Z
The piece machine U1 and solid-state relay R that triggering state is controlled by single-chip microcontroller U1；Motor is connected by solid-state relay R and three phase mains
It connects.
Technical solutions of the utility model further improvement lies in that: single-chip microcontroller U1 be STC12C5608AD, temperature sensor Z
For 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,
The pin 2 of temperature sensor Z is also connected to power supply by resistance R2；Single-chip microcontroller U1 passes through triode Q1's and solid-state relay R
Signal input part connection, the pin 27 of single-chip microcontroller U1 are connect with the base stage of triode Q1, the emitter ground connection of triode, three poles
The collector of pipe Q1 is connect with the signal input terminal 8 of solid-state relay R；Triode Q1 is NPN type.
Technical solutions of the utility model further improvement lies in that: the base stage of the pin 27 of single-chip microcontroller U1 and triode Q1
Between be arranged resistance R1, between the collector of triode Q1 and the signal input terminal 8 of solid-state relay R be arranged resistance R3.
Technical solutions of the utility model further improvement lies in that: automatic control system further include for displays temperature sense
The display unit of the temperature of device Z measurement, the display unit is the light-emitting diode display H connecting with single-chip microcontroller U1.
Technical solutions of the utility model further improvement lies in that: pin a, b, c, d, e, f, g of light-emitting diode display H difference
Connect with the pin 4,5,8,9,10,11 of single-chip microcontroller U1, the pin com1 and pin com2 of light-emitting diode display H respectively with single-chip microcontroller
Pin 1 and pin 2 connect.
By adopting the above-described technical solution, the technical effect that the utility model obtains has:
Using the on-off between solid-state relay control cooling fan and three phase mains in the utility model, and further
The triggering state of solid-state relay is controlled using the cooperation of single-chip microcontroller and temperature sensor, which improves for transformer
The measurement accuracy of temperature and the adjustment that cooling fan can be carried out according to the real time temperature of transformer, can not only guarantee for transformation
The cooling effect of device 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 utility model are suitable for transformer
Working environment.
Detailed description of the invention
Fig. 1 is utility model diagram.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is described in further details the utility model:
The utility model discloses a kind of air cooling equipment of transformer, which is the transformer Cooling for substation
, here is specific embodiment:
The air cooling equipment of one of the utility model transformer, including the cooling fan being driven by motor and control motor
Automatic control system.The air cooling equipment carries out wind cooling temperature lowering to transformer using cooling fan, can guarantee safety, and
Convenient for control.
Automatic control system in the utility model includes the temperature sensor Z and temperature for measuring transformer temperature
The single-chip microcontroller U1 of the sensor Z connection and solid-state relay R that triggering state is controlled by single-chip microcontroller U1.Temperature sensor Z setting
It is capable of the temperature of real-time measurement transformer on the shell of transformer, temperature sensor Z is connect with single-chip microcontroller U1 by cable, energy
The transmitting for enough carrying out information, after single-chip microcontroller U1 judges by analysis according to the information that temperature sensor Z is transmitted, output control letter
Number.Single-chip microcontroller U1 controls the triggering state of solid-state relay R by output signal.Motor passes through solid-state relay R and three-phase electricity
Source connection, 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 utility model is by following setting: as shown in Figure 1, selecting 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
Ground connection, 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 is connected to power supply.The pin 2 of temperature sensor Z is signal output end, can send the signal of measurement to single-chip microcontroller U1
Pin 18.The output end of single-chip microcontroller U1 is connect with solid-state relay R, thus the shape of output signal control solid-state relay R
State.Specific connection is that single-chip microcontroller U1 is connect by triode Q1 with the signal input part of solid-state relay R, single-chip microcontroller U1's
Pin 27 is connect with the base stage of triode Q1, the emitter ground connection of triode, the collector and solid-state relay R of triode Q1
Signal input terminal 8 connect.Triode Q1 in the circuit is NPN type.Single-chip microcontroller U1, temperature sensor in control circuit
Z 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.
The working principle of the utility model is as follows: when by certain reason (such as: load increases or variation of ambient temperature etc.)
When transformer temperature being made to be more than preset temperature (such as 80 DEG C), the temperature sensor Z being tightly attached on main transformer shell will be sensed
Temperature signal be transmitted in single-chip microcontroller U1, so that its 27 foot of pin output high level through resistance R1 is made triode through its internal arithmetic
Q1 conducting is to trigger solid-state relay R conducting, 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 touching
Power generation is flowed and is disconnected, and cooling fan power loss stops working.Light-emitting diode display H can be real-time by 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 utility model, and further
The triggering state of solid-state relay is controlled using the cooperation of single-chip microcontroller and temperature sensor, which improves for transformer
The measurement accuracy of temperature and the adjustment that cooling fan can be carried out according to the real time temperature of transformer, can not only guarantee for transformation
The cooling effect of device can also prevent cooling fan be constantly in starting state and caused by energy waste and cooling fan
Service life reduction.The utility model can reduce the unnecessary waste of electric energy.The setting of solid-state relay keeps the device especially suitable
In cooling for the transformer to substation.
The utility model passes through solid-state relay and cooperates with corresponding control circuit, realizes the reality for cooling fan
When auto-adjustment control, 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 |
|---|---|---|---|
| CN201821595978.7U CN209087501U (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 |
|---|---|---|---|
| CN201821595978.7U CN209087501U (en) | 2018-09-29 | 2018-09-29 | A kind of air cooling equipment of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209087501U true CN209087501U (en) | 2019-07-09 |
Family
ID=67117824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821595978.7U Active CN209087501U (en) | 2018-09-29 | 2018-09-29 | A kind of air cooling equipment of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209087501U (en) |
-
2018
- 2018-09-29 CN CN201821595978.7U patent/CN209087501U/en active Active
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