TWM638575U - Cooling control system for transformers - Google Patents

Abstract

This work is a cooling control system for a transformer, including a transformer, a monitoring module, a plurality of cooling modules, a cooling power supply module, an operation module and a control module. The monitoring module is set in the transformer to measure the temperature of the transformer. Winding temperature and oil temperature, each cooling module is set at different positions outside the transformer. When the operation module is operated and selected to be in the smart operation state, the control module controls the power supply of the cooling power supply module according to the preset start-up threshold temperature. Stop the power supply to the cooling modules, and when any cooling module reaches the preset alternate operation time of the control module, the cooling module that was originally running will be delayed and stopped, while the other cooling module will be started immediately to ensure that each cooling module can Alternate operation.

Description

Transformer Cooling Control System

This work relates to transformers, especially a cooling control system for transformers.

The main function of the transformer in the power system is to convert the voltage of the power. For example, the step-up transformer boosts the voltage of the power to reduce the current of the power, effectively reducing the loss of the line during the transmission process, and improving the economy of power transmission. , to achieve the purpose of long-distance transmission of power, and another example: step-down transformers can step down the high-voltage power transmitted to convert the power into the voltage required by the user (for example, the voltage of household power is 110 volts or 220 volts) , to supply various electrical equipment.

However, due to factors such as overload, high winding hot spot temperature, and high oil temperature in the transformer, transformers often accelerate aging and reduce service life. Therefore, how to effectively use the cooling system (or cooling system) to regulate the working temperature of the transformer is a very important issue.

Aiming at the aforementioned problems, many related companies have conducted research or applied for patents, for example: Chinese Invention Patent Publication No. CN111722657A (Invention Name: A Transformer Temperature Control Method and Transformer), which is based on the overtemperature state of the top layer oil temperature of the transformer. Choose how many fan units need to be turned on to cool down; as the oil temperature on the top layer of the transformer decreases, moderately reduce the number of input fan units, and use the predicted heat dissipation power to select the fan units, making the selection method of the fan units more flexible.

In addition, commercially available transformers are equipped with a plurality of fans at different positions of the transformer, and the actual work control method of each fan is to switch the switch to three operating states of automatic, manual and stop by human operation to cool the fan. On-off control, when the switch is switched to manual, the fan is turned on and off by the no-fuse switch (NFB). When the switching switch is switched to the stop button, the fan will stop without action. When the switch is switched to automatic, the start and stop of the fan will be controlled by the preset temperature of the transformer's oil thermometer or coil thermometer.

The above-mentioned prior patent case 1 or the commercially available transformer solves the problem of temperature control of the transformer, but for the detection of the use status of the fan or fan unit, it is mainly to be inspected and maintained during the regular on-site inspection of the transformer, and no The fan of the transformer is monitored in real time and continuously, so it is difficult to find the latent failure of the fan.

Based on the above reasons, some people have proposed countermeasures for the detection of the fan's use status, for example: Chinese Invention Patent No. CN113123990B (A method for monitoring abnormal air volume of an oil-immersed transformer fan based on oil index identification, hereinafter referred to as the second patent case), Its abstract mentions a method for monitoring the abnormal air volume of fans in the cooling system of oil-immersed transformers based on oil index identification. 1. Carry out the calculation of the top layer oil temperature of the transformer, and compare the transformer oil index under the two modes, so as to obtain the characteristic quantity reflecting the air volume state of the fan. The monitoring method can be used to monitor the abnormal air volume when the fan is running by monitoring the change trend of the transformer oil index in real time according to the on-site oil temperature data of the transformer.

However, the second patent application determines the oil index change threshold range of the oil-immersed transformer under the two cooling methods through the change trend of the oil index. It can be seen from the monitored change trend that the oil index can indirectly reflect the change of the air volume of the fan, so it can be used to monitor the abnormal air volume when the fan is running. But it failed to solve the following problems: 1. If the temperature setting of one of the fans is started to be low, it may often need to run continuously, while the other fan with a higher temperature setting point may often be in a stopped state, causing frequent running fans to wear out quickly and have a shorter service life. 2. If the fan has not been started for a long time, the bearing may be stuck and unable to run when it is started, which will cause a dangerous situation of insufficient cooling capacity of the transformer, and eventually lead to abnormal power supply.

To sum up, how to make all the fans of the transformer run properly, avoid some fans being constantly running, or some fans being completely stopped for a long time, and avoid the problem of fan bearings being stuck and unable to run, is an urgent problem to be solved at present. The problem.

In view of the problems of the previous technology, the purpose of this creation is to improve the long-term running life of the fans and the problems of long-term stuckness without starting, and further set any temperature to start and stop each group of fans, display the start or stop status of each group of fans, and display the status of each group of fans. Group fan cumulative operating time, set the alternate operation sequence control of each group fan, fan stop operation delay time setting, and alarm output setting of each group fan, etc.

According to the purpose of this creation, a cooling control system for a transformer is provided, including a transformer, a monitoring module, a plurality of cooling modules, a cooling power supply module, an operation module and a control module, wherein the monitoring module is set in the transformer and used To measure the winding temperature and oil temperature of the transformer, each cooling module is installed at different positions outside the transformer, and the cooling power supply module is connected to the cooling module, and the operation module is connected between the control module and the cooling power supply module. The operation module is operated to choose one of the intelligent operation state, automatic operation state, stop state or manual state. The control module is equipped with the start-up threshold temperature of the cooling module in the intelligent operation state, and the alternating temperature of each cooling module. Running time, when the operation module is operated and selected to be in the smart operation state, the control module controls the power supply of the cooling power supply module or stops the power supply to the cooling module according to the preset startup threshold temperature, so as to achieve the goal of starting and shutting down the cooling module Purpose, in addition, when the cumulative operating time of the operating cooling module reaches the alternate operating time, the currently operating cooling module will continue to operate for a period of time and then stop operating, while the other cooling module will start immediately to ensure the cooling module. Fully alternate running operation.

Wherein, each cooling module can be a plurality of fans arranged on the surface of the transformer, or a plurality of cooling units and a plurality of fans arranged on the surface of the transformer. Furthermore, each cooling module is arranged at the position of the transformer, corresponding to the high voltage winding, the low voltage winding, the upper oil temperature zone or the lower oil temperature zone of the transformer.

Among them, the operation module can be a switch, and the switch is respectively provided with a switch terminal, a smart operation terminal, a stop terminal, a manual terminal and an automatic terminal. The operation module is in the intelligent operation state when the switch terminal is connected to the intelligent operation terminal. The group is in the stop state when the switching end is connected to the stop end. The operation module is in the manual state when the switching end is connected to the manual end, and the operation module is in the automatic state when the switching end is connected to the automatic end. In intelligent operation state, automatic operation state, stop state or manual state.

Among them, the operation module also includes an oil temperature control switch, an intelligent control switch and a power switch. The oil temperature control switch is connected between the first power supply end and the automatic end of the control power supply, and the intelligent control switch is set at the first power supply end. Between the terminal and the intelligent operation terminal, the power switching switch is connected between the switching terminal and the second power supply terminal of the control power supply, and the first power supply terminal and the second power supply terminal are respectively the positive terminal and the negative terminal of the control power supply. It can be a magnetic contactor.

Wherein, the manual end is connected to the first power supply end. When the operation module is in the manual state, each fan can be manually operated to keep running or stop. The stop terminal is not connected to the first power supply terminal, so when the operation module is in a stop state, each fan will stop running immediately.

Among them, the cooling power supply module is connected between the power switch and each fan of each cooling module, the cooling power supply module is connected with a no-fuse switch between each fan and the power switch, and the operation module is in the manual state , each fan will continue to operate until the load of the non-fuse switch is exceeded, so that the non-fuse switch is in an open circuit state, and each fan will stop operating. Alternatively, a thermodynamic translation is provided between each no-fuse switch and each fan, which is further used as overload and phase-loss protection between each power switch, each no-fuse switch and each fan.

Among them, the monitoring module includes high-voltage winding thermometer, low-voltage winding thermometer, upper oil temperature thermometer and lower oil temperature thermometer, high-voltage winding thermometer, low-voltage winding thermometer, upper oil temperature thermometer and lower oil temperature thermometer respectively. The winding detection temperature value, the low voltage winding detection temperature value, the upper oil temperature detection temperature value and the lower oil temperature detection temperature value are sent to the control module, and the control module sets the high voltage winding fan start temperature, the low voltage winding fan start temperature, the upper oil temperature The starting temperature of the warm fan, the starting temperature of the lower oil temperature fan, and the control module detects that the temperature value of the high-voltage winding is greater than or equal to the starting temperature of the high-voltage winding fan, and the detection temperature value of the low-voltage winding is greater than or equal to the starting temperature of the low-voltage winding fan, and the detection temperature of the upper oil temperature If the value is greater than or equal to the starting temperature of the upper oil temperature fan, or the detection temperature value of the lower oil temperature is greater than or equal to one of the starting temperature of the lower oil temperature fan, the control module starts corresponding to the high-voltage winding, low-voltage winding, upper oil temperature zone or lower oil temperature zone. The cooling module at the location of the temperature zone.

Among them, the monitoring module is also equipped with a cooling monitor. The cooling monitor monitors the working status of each cooling module. Cumulative running time of cooling modules. The control module is connected to the monitoring module to receive and record the working status of each cooling module 3, and the control module sends a reset signal to re-record the working status after any cooling module is updated or repaired.

In the positions of the transformer corresponding to the high-voltage winding, low-voltage winding, upper oil temperature zone or lower oil temperature zone, two sets of cooling modules are respectively installed, one of which is used as the main cooling module, and the other is used as a backup cooling module. When the accumulative operation time of the group in any main cooling module reaches the alternate operation time preset by the control module, the control module will start the backup cooling module to operate.

Among them, the control module is further connected to the network module, and the control module transmits the detected temperature values of the high-voltage winding, low-voltage winding, upper oil temperature and lower oil temperature to the cloud platform through the network module , or set the starting temperature of the high-voltage winding fan, the starting temperature of the low-voltage winding fan, the starting temperature of the upper oil temperature fan or the starting temperature of the lower oil temperature fan through the cloud platform.

Among them, it further includes a display module, the control module is connected to the display module, and the display module is provided with a man-machine interface. The man-machine interface displays the start or stop status of each cooling module, the start-up temperature of the high-voltage winding fan, and the start-up temperature of the low-voltage winding fan. , the starting temperature of the upper oil temperature fan, the starting temperature of the lower oil temperature fan, the alternate operation time and the cumulative operation time, and provide settings for setting the starting temperature of the high voltage winding fan, the starting temperature of the low voltage winding fan, the starting temperature of the upper oil temperature fan or the start of the lower oil temperature fan Temperature and alternate operation time, wherein the alternate operation time includes setting the time of alternate operation and the time delay before stopping the cumulative operation time.

Among them, it further includes an alarm module, which is connected to the control module. The alarm module includes a plurality of alarm lights or warning lights set for the operation interface or human-machine interface. When the control module determines that the detected temperature value of the high-voltage winding is greater than Or equal to the starting temperature of the high-voltage winding fan, the detection temperature value of the low-voltage winding is greater than or equal to the starting temperature of the low-voltage winding fan, the detection temperature value of the upper oil temperature is greater than or equal to the starting temperature of the upper oil temperature fan, and the detection temperature value of the lower oil temperature is greater than or equal to the lower oil temperature When the fan activates one of the temperatures, the control module will send out an alarm signal to activate the corresponding alarm light or warning light.

To sum up, this creation can set any high-voltage winding fan start-up temperature, low-voltage winding fan start-up temperature, upper oil temperature fan start-up temperature, and lower oil temperature fan start-up temperature in the intelligent operation state to start or stop each group of fans. The display module can also be used to display the start or stop status of each group of fans, display the cumulative operation time of each group of fans, set the alternate operation time of each group of fans, set the delay time of fan stop operation, and set the alarm output of each group of fans, etc. , and each group of fans can operate interactively to avoid the problem of being stuck due to long-term non-operation.

Embodiments of the invention will be further explained below with the help of related drawings. Wherever possible, the same reference numerals have been used throughout the drawings and description to refer to the same or similar components. In the drawings, the shape and thickness may be exaggerated for the sake of simplification and convenient labeling. It should be understood that elements not particularly shown in the drawings or described in the specification are forms known to those skilled in the art. Those skilled in the art can make various changes and modifications based on the content of this creation.

Please refer to Figure 1, this work is a transformer cooling control system, including a transformer 1, a monitoring module 2, a plurality of cooling modules 3, a cooling power supply module 4, an operation module 5 and a control module 6, of which The control module 6 is connected to the monitoring module 2 , each cooling module 3 and the operation module 5 . The cooling power supply module 4 is connected between the control power supply and the cooling module 3 .

In this creation, as shown in FIG. 2 , the monitoring module 2 includes a high-voltage winding thermometer 20 , a low-voltage winding thermometer 22 , an upper oil temperature thermometer 24 , and a lower oil temperature thermometer 26 . The high voltage winding thermometer 20 measures the temperature of the high voltage winding of the transformer 1 to generate a detected temperature value of the high voltage winding. The low voltage winding thermometer 22 measures the temperature of the low voltage winding of the transformer 1 to generate a detected temperature value of the high voltage winding. The upper oil temperature thermometer 24 measures the upper oil temperature of the transformer 1 to generate an upper oil temperature detection temperature value. The lower oil temperature thermometer 26 measures the temperature of the lower oil temperature of the transformer 1 to generate a detected temperature value of the lower oil temperature.

In addition, the control module 6 sets the start-up temperature of the high-voltage winding fan, the start-up temperature of the low-voltage winding fan, the start-up temperature of the upper oil temperature fan, and the start-up temperature of the lower oil temperature fan as the start-up threshold temperature, and the control module 6 detects the temperature value of the high-voltage winding Greater than or equal to the starting temperature of the high-voltage winding fan The detection temperature value of the low-voltage winding is greater than or equal to the starting temperature of the low-voltage winding fan For one of the starting temperature of the fan, the control module 6 starts the cooling module 3 corresponding to the position of the high voltage winding, the low voltage winding, the upper oil temperature zone or the lower oil temperature zone.

In this creation, please refer to Figure 3, each cooling module 3 is set on the surface of the transformer 1 corresponding to the high voltage winding, low voltage winding, upper oil temperature zone or lower oil temperature zone of the transformer 1, and each cooling module 3 is a plurality of fans 30 , or a plurality of cooling units and a plurality of fans 30 .

Furthermore, as shown in FIG. 4, the operation module 5 is connected between the control module 6 and the cooling power supply module 4. The operation module 5 includes a switch 50, a temperature control switch 52, an intelligent control switch 54 and The power switching switch 56 and the switching switch 50 are respectively provided with a switch terminal 500, a smart operation terminal 502, a stop terminal 504, a manual terminal 506 and an automatic terminal 508, and the control module 6 is provided with the start of the cooling module 3 under the intelligent operation state The threshold temperature and the alternate operation time of each cooling module 3 . The oil temperature control switch 52 is connected between the first power supply terminal 60 and the automatic terminal 508 of the control power supply, the intelligent control switch 54 is set between the first power supply terminal 60 and the intelligent operation terminal 502, and the power switching switch 56 is connected to the switching terminal 500 and the second power supply terminal 62 of the control power supply, and the first power supply terminal 60 and the second power supply terminal 62 are respectively the positive terminal and the negative terminal of the control power supply. The cooling power supply module 4 is connected between the power switching switch 56 and each fan 30 of each cooling module 3 , and the power switching switch 56 can be an electromagnetic contactor.

When the operation module 5 is connected to the intelligent operation terminal 502 at the switch terminal 500 and is in the intelligent operation state, the control module 6 controls the cooling power supply module 4 to supply power to the cooling module 3 or stops the power supply to the cooling module 3 according to the starting threshold temperature for starting and shutting down Cooling module 3. And when any cooling module 3 reaches the alternate operation time, the original cooling module 3 will be delayed and stopped, while the other cooling module 3 will be started immediately to ensure the complete alternate operation of the cooling module 3

When the operation module 5 is connected to the stop terminal 504 at the switching terminal 500, it is in the stop state, and the stop terminal 504 is a dead contact. Therefore, when the operation module 5 is in the stop state, each fan 30 will stop running immediately. When the operation module 5 is connected to the manual terminal 506 at the switching terminal 500, it is in the manual state, and the manual terminal 506 is connected to the first power supply terminal 60. When the operation module 5 is in the manual state, each fan 30 can be manually operated respectively. keep it running or stop it. And when the operation module 5 is connected to the automatic terminal 508 at the switching terminal 500, it is in the automatic state, and the oil temperature control translator 52 starts or closes the operation of each fan 30 according to the oil temperature threshold value set therefor.

See also shown in Fig. 3, the cooling power supply module 4 connects the no-fuse switch 40 between each fan 30 and the power switch 56, and when the operation module 5 is in the manual state or the automatic state, each fan 30 will continue Operate until the load of the no-fuse switch 40 is exceeded, so that the no-fuse switch 40 presents an open circuit state, and each fan 30 stops operating. Alternatively, a thermal relay 42 is provided between each no-fuse switch 40 and each fan 30 , further serving as the overload and under-phase protection between each power switch 56 , each no-fuse switch 40 and each fan 30 .

According to the above, the operation module 5 can switch to the intelligent operation state by adding a smart operation terminal 502 with the switch 50, and then use the preset start-up threshold temperature and the alternate operation time of each cooling module 3 to control each fan 30 for intelligent operation, while the switch 50 still maintains the automatic operation state, stop state or manual state, and carries out the original control mode of the transformer 1, in other words, the traditional transformer 1 can be added to this creation by replacing the switch 50 Transformer 1 cooling control system.

In order to be able to record the operating time of each cooling module 3, or to accumulate again when each cooling module 3 is replaced or repaired, in this creation, please refer to shown in Figure 2, the monitoring module 2 is provided with a cooling monitor 28, cooling The monitor 28 monitors the working status of each cooling module 3 . The working status includes each startup and shutdown time of each cooling module 3 , the working time from each startup to shutdown, and the cumulative operation time of each cooling module 3 . The control module 6 is connected to the monitoring module 2 to receive and record the working status of each cooling module 3 , and the control module 6 sends a reset signal to re-record the working status after any cooling module 3 is updated or repaired.

In addition, in order for the transformer 1 to have a backup heat dissipation mechanism, two sets of cooling modules 3 are respectively installed at the positions of the transformer corresponding to the high-voltage winding, low-voltage winding, upper oil temperature zone or lower oil temperature zone, and one of them is used as the main cooling module. group, and the other is used as a backup cooling module. In order to avoid the jamming problem of each backup cooling module that has not been operated for a long time, the accumulative operating time of the control module 6 in any main cooling module reaches the control module 6 At the preset alternate operation time, the control module 6 will activate the backup cooling module for operation.

In this creation, please refer to Figure 1 and Figure 5, the control module 6 is further connected to the network module 7, and the control module passes through the network module 7 to detect the temperature value of the high-voltage winding, the detection temperature value of the low-voltage winding, and the upper The oil temperature detection temperature value and the lower oil temperature detection temperature value are transmitted to the cloud platform 8, and the cumulative operating time and the operation status of each cooling module 3 can be transmitted to the cloud platform 8, or the high pressure can be set via the cloud platform 8 The starting temperature of the winding fan, the starting temperature of the low-voltage winding fan, the starting temperature of the upper oil temperature fan, the starting temperature of the lower oil temperature fan and the alternate operation time.

Further, the user can use the application program of the smart electronic device 90 (for example: smart phone or tablet computer) to connect to the cloud platform 8, and use the operation interface 92 presented by the application program to set the high-voltage winding fan start-up temperature, low-voltage The starting temperature of the winding fan, the starting temperature of the upper oil temperature fan or the starting temperature of the lower oil temperature fan is used to complete the setting of the starting temperature of the high voltage winding fan, the starting temperature of the low voltage winding fan, the starting temperature of the upper oil temperature fan or the lower oil temperature fan on the cloud platform 8 The purpose of the starting temperature, and the cloud platform 8 will return the set high-voltage winding fan starting temperature, low-voltage winding fan starting temperature, upper oil temperature fan starting temperature or lower oil temperature fan starting temperature to the control module 6, or from the application Operation interface 92 to view the starting temperature of the high voltage winding fan, the starting temperature of the low voltage winding fan, the starting temperature of the upper oil temperature fan or the starting temperature of the lower oil temperature fan, the detection temperature value of the high voltage winding, the detection temperature value of the low voltage winding, the detection temperature value of the upper oil temperature, The detected temperature value of the lower oil temperature, the accumulative operating time of each cooling module 3 and the operating state of starting or closing.

Furthermore, please refer to FIGS. 1 and 5, the cooling control system of the transformer further includes a display module 64, the control module 6 is connected to the display module 64, and the display module 64 is provided with a man-machine interface 640, which is equivalent to The operation interface 92 can display the starting or stopping status of each group of fans 30, the starting temperature of the high-voltage winding fan, the starting temperature of the low-voltage winding fan, the starting temperature of the upper oil temperature fan, the starting temperature of the lower oil temperature fan, and the alternate operation time and cumulative operation time. Set the high-voltage winding fan start-up temperature, low-voltage winding The starting temperature of the fan, the starting temperature of the upper oil temperature fan or the starting temperature of the lower oil temperature fan, and the alternate operation time, wherein the alternate operation time includes setting the time of alternate operation and the delay time before stopping.

Moreover, the cooling control system of the transformer also includes an alarm module 66, the control module 6 is connected to the alarm module 66, and the alarm module 66 includes a plurality of alarm lights or warning lights set for the operation interface 92 or the man-machine interface 640, In Figure 5, ◎ indicates that the warning light is off, and ● indicates that the warning light is on. When the control module 6 judges that the detected temperature value of the high-voltage winding is greater than or equal to the starting temperature of the high-voltage winding fan, and the detection temperature value of the low-voltage winding is greater than or equal to the starting temperature of the low-voltage winding fan temperature, the upper oil temperature detection temperature value is greater than or equal to the upper oil temperature fan start temperature, and the lower oil temperature detection temperature value is greater than or equal to one of the lower oil temperature fan start temperature, the control module 6 will send out an alarm signal to start the corresponding Warning lights or warning lights.

To sum up, the present invention can start or stop each group of fans 30 according to the start threshold temperature in the intelligent operation state, and control the temperature of the transformer 1 in a timely manner. It is also possible to use the display module 64 or the smart electronic device 90 to connect to the cloud platform 8 to view the start or stop status of each group of fans 30, display the cumulative operation time of each group of fans 30, and set the alternate operation time of each group of fans 30, etc. Furthermore, each group of fans 30 can operate alternately, so as to avoid the problem of being stuck due to long-term non-operation.

The above is just an example to illustrate the preferred implementation of this creation, not to limit the scope of implementation. All simple replacements and equivalent changes made according to the patent scope of this creation and the content of the patent specification are all patents of this creation. Application category.

1: Transformer

2: Monitoring module

20: High voltage winding thermometer

22: Low voltage winding thermometer

24: Upper oil temperature thermometer

26: lower oil temperature thermometer

28:Cooling monitor

3: cooling module

30: fan

4: cooling power supply module

40: No fuse switch

42: Thermal translation

5: Operation module

50: toggle switch

500: switch terminal

502: Smart operation terminal

504: stop end

506: manual end

508: Automatic terminal

52:Temperature control electrotranslation

54:Smart control switch

56: Power switch

6: Control module

60: the first power supply end

62: The second power supply terminal

64: Display module

640: Man-machine interface

66:Alarm module

7: Network module

8: Cloud platform

90:Smart electronic device

92: Operation interface

Fig. 1 is a schematic diagram of the structure of the cooling control system of the transformer in this invention. Figure 2 is a schematic diagram of the architecture of the monitoring module created in this paper. FIG. 3 is a schematic circuit diagram of the cooling power supply module and the cooling module of the present invention. Fig. 4 is a schematic circuit diagram of the operation module of this creation. FIG. 5 is a schematic diagram of the man-machine interface of the display module of the invention.

1: Transformer

2: Monitoring module

3: cooling module

4: cooling power supply module

5: Operation module

6: Control module

64: Display module

66:Alarm module

7: Network module

8: Cloud platform

90:Smart electronic device

Claims (14)

A cooling control system for a transformer, comprising: a transformer; A monitoring module, which is installed in the transformer and measures the winding temperature and oil temperature of the transformer; A plurality of cooling modules, each of which is located at a different position outside the transformer; A cooling power supply module connected to the cooling module; An operation module, the operation module is connected to the cooling power supply module, and the operation module is operated to select a smart operation state; and A control module, the control module is connected to the operation module, the control module is provided with a start-up threshold temperature of each of the cooling modules and an alternate operation time of each of the cooling modules in the smart operation state, the When the operation module is operated and is in the intelligent operation state, the control module controls the cooling power supply module to supply power to the cooling module or stops power supply to the cooling module according to the preset startup threshold temperature, so as to start and stop the cooling module , and when any one of the cooling modules reaches the alternate operation time, it will stop after a period of delay, and the other cooling module will start immediately. The cooling control system for a transformer as described in Claim 1, wherein each of the cooling modules is a plurality of fans disposed on the surface of the transformer, or a plurality of cooling units and the plurality of fans are disposed on the surface of the transformer. The cooling control system of a transformer as described in claim 2, wherein each cooling module is arranged on the surface of the transformer at a position corresponding to a high-voltage winding, a low-voltage winding, an upper oil temperature zone or a lower oil temperature zone of the transformer . The cooling control system of a transformer as described in claim 3, wherein the operation module includes a switch, and the switch is respectively provided with a switch terminal, a smart operation terminal, a stop terminal, a manual terminal and an automatic terminal. The operation module is in the intelligent operation state when the switch terminal is connected to the intelligent operation terminal, and the operation module is in a stop state when the switch terminal is connected to the stop terminal. The manual end is in a manual state, and the operation module is in an automatic state when the switching end is connected to the automatic end. The cooling control system of the transformer as described in claim item 4, wherein the operation module further includes: An oil temperature control electric translation, the oil temperature control electric translation is connected between a first power supply end of a control power supply and the automatic end, when the operation module is in the automatic state, the oil temperature control electric translation follows its The set oil temperature threshold starts or closes the operation of each fan; An intelligent control switch, the intelligent control switch is set between a first power supply terminal and the intelligent operation terminal, when the operation module is in the intelligent operation state, the control module is controlled to turn on or off according to the preset starting threshold temperature Turn off the intelligent control switch, so that the cooling power supply module supplies power or stops supplying power to the cooling module, or reaches the alternate operation time of any cooling module, and the control module controls the intelligent control switch to delay closing the operation. a cooling module, and the control module controls to immediately turn on another cooling module; and a power switching switch, the power switching switch is connected between the switching terminal and a second power supply terminal of the control power supply; Wherein, the manual end is connected to the first power supply end. When the operation module is in the manual state, each fan is manually operated to make it continue to run or stop, and the stop end is an empty contact. The operation module is in the In stop state, each fan will stop working immediately. The cooling control system for a transformer as described in Claim 5, wherein the cooling power supply module is connected between the power switch and each fan of each cooling module, and the cooling power supply module is between each fan and the The power switch is connected to a no-fuse switch, and the operation module is in the manual state, and the fans will continue to operate until the load of the no-fuse switch is exceeded, so that the no-fuse switch is in an open state , each fan stops working. The cooling control system for a transformer as described in Claim 6, wherein a thermodynamic relay is provided between each no-fuse switch and each fan. The cooling control system of the transformer as described in claim item 7, wherein the monitoring module includes: a high-voltage winding thermometer for measuring the temperature of the high-voltage winding of the transformer to generate a detected temperature value of the high-voltage winding; a low-voltage winding thermometer for measuring the temperature of the low-voltage winding of the transformer to generate a detected temperature value of the high-voltage winding; An upper oil temperature thermometer for measuring the temperature of the upper oil temperature of the transformer to generate an upper oil temperature detection temperature value; A lower oil temperature thermometer measures the temperature of the lower oil temperature of the transformer to generate a detection temperature value of the lower oil temperature; Wherein, the high-voltage winding thermometer, the low-voltage winding thermometer, the upper oil temperature thermometer and the lower oil temperature thermometer respectively sense the detected temperature value of the high-voltage winding, the detected temperature value of the low-voltage winding, and the detected temperature of the upper oil temperature. value and the detected temperature value of the lower oil temperature are sent to the control module, and the control module sets a high-voltage winding fan start temperature, a low-voltage winding fan start temperature, an upper oil temperature fan start temperature, a lower oil temperature fan The control module detects that the high-voltage winding temperature value is greater than or equal to the high-voltage winding fan start-up temperature, the low-voltage winding detection temperature value is greater than or equal to the low-voltage winding fan start-up temperature, and the upper oil temperature detection temperature value is greater than or equal to is equal to the starting temperature of the upper oil temperature fan, or the detected temperature value of the lower oil temperature is greater than or equal to one of the starting temperature of the lower oil temperature fan, then the control module starts corresponding to the high voltage winding, the low voltage winding, the upper oil The cooling module in the temperature zone or the position of the lower oil temperature zone. The cooling control system of the transformer as described in claim 8, wherein the monitoring module is further provided with a cooling monitor, and the cooling monitor monitors a working state of each cooling module, and the working state includes each cooling module The time of each startup and shutdown, the working time from each startup to shutdown, and the cumulative operation time of each cooling module, the control module is connected to the monitoring module, and receives and records the working status of each cooling module , and the control module sends a reset signal to re-record the working status after any cooling module is updated or repaired. The cooling control system for a transformer as described in Claim 9, wherein two sets of the cooling modules are set respectively at the position of the transformer corresponding to the high-voltage winding, the low-voltage winding, the upper oil temperature zone or the lower oil temperature zone, One of them is used as the main cooling module, and the other is used as the backup cooling module. When the accumulative operation time of any one of the main cooling modules reaches the alternate operation time preset by the control module, the control module The backup cooling module will be activated for operation. The cooling control system of the transformer as described in claim item 9, wherein the control module is further connected to a network module, and the control module detects the temperature value of the high-voltage winding and the low-voltage winding through the network module , the detected temperature value of the upper oil temperature and the detected temperature value of the lower oil temperature are sent to a cloud platform, or the starting temperature of the high-voltage winding fan, the starting temperature of the low-voltage winding fan, the starting temperature of the upper oil temperature fan, or The lower oil temp fan starts at temp. The transformer cooling control system as described in claim 11, which further includes a smart electronic device, the smart electronic device is connected to the cloud platform through an application program set up on it, and an operation presented by the application program The interface sets the starting temperature of the high-voltage winding fan, the starting temperature of the low-voltage winding fan, the starting temperature of the upper oil temperature fan or the starting temperature of the lower oil temperature fan, and the cloud platform returns the completed setting of the starting temperature of the high-voltage winding fan, the low-voltage The starting temperature of the winding fan, the starting temperature of the upper oil temperature fan or the starting temperature of the lower oil temperature fan to the control module, or view the starting temperature of the high voltage winding fan, the starting temperature of the low voltage winding fan, the The starting temperature of the upper oil temperature fan or the starting temperature of the lower oil temperature fan, the detected temperature value of the high-voltage winding, the detected temperature value of the low-voltage winding, the detected temperature value of the upper oil temperature, the detected temperature value of the lower oil temperature, and each cooling module The cumulative operating time and the operating status of activation or shutdown. The cooling control system of the transformer as described in claim 12, which further includes a display module, the control module is connected to the display module, the display module is provided with a man-machine interface, and the man-machine interface displays the The starting or stopping status of the group, the starting temperature of the high-voltage winding fan, the starting temperature of the low-voltage winding fan, the starting temperature of the upper oil temperature fan, the starting temperature of the lower oil temperature fan, the alternate operation time and the cumulative operation time, and provide settings The starting temperature of the high-voltage winding fan, the starting temperature of the low-voltage winding fan, the starting temperature of the upper oil temperature fan or the starting temperature of the lower oil temperature fan and the alternate operation time, wherein the alternate operation time includes setting the time of alternate operation and the delay time stop after. The cooling control system for a transformer as described in claim 13, further comprising an alarm module, the alarm module is connected to the control module, and the alarm module includes a plurality of alarm lights or is the operation interface or the man-machine interface When the control module judges that the detected temperature value of the high-voltage winding is greater than or equal to the starting temperature of the high-voltage winding fan, the detected temperature value of the low-voltage winding is greater than or equal to the starting temperature of the low-voltage winding fan, and the upper oil temperature detection When the temperature value is greater than or equal to the start-up temperature of the upper oil temperature fan, and the detected temperature value of the lower oil temperature is greater than or equal to one of the start-up temperatures of the lower oil temperature fan, the control module will send out an alarm signal to activate the corresponding alarm light Or that warning light.

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