CN207503068U - A kind of energy-saving main transformer cooler switch board - Google Patents
A kind of energy-saving main transformer cooler switch board Download PDFInfo
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- CN207503068U CN207503068U CN201721318371.XU CN201721318371U CN207503068U CN 207503068 U CN207503068 U CN 207503068U CN 201721318371 U CN201721318371 U CN 201721318371U CN 207503068 U CN207503068 U CN 207503068U
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- cabinet
- main transformer
- cooler
- energy
- switch board
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Abstract
The utility model discloses a kind of energy-saving main transformer cooler switch boards, by carrying out converting operation control to main transformer cooler, realize when main transformer oil is relatively low, reduce the speed of service of main transformer cooling blower with energy-saving；The switch board has automatic operation mode, manual work pattern and security operating mode, increases the control mode of main transformer cooler so that equipment operation is more intelligent；Under automatic operation mode, PLC controller passes through the two-way power frequency supply being set separately and the startup switching time of the cooler method of operation, power frequency supply and cooler are carried out periodically starting switching, solves the manual operation process of traditional cooling control cabinet so that the operation of main transformer cooler more adapts to the requirement of current unattended station.
Description
Technical field
The utility model belongs to transformer Cooling control field, is to be related to a kind of energy-saving main transformer cooler specifically
Switch board.
Background technology
For 330KV substations, traditional main transformer is cooled down using the air-cooled type of cooling of forced oil-circulation, in main transformer oil
Still power frequency operation is used when temperature is relatively low, energy consumption is higher.Also, current switch board control mode is relatively simple, and it is indefinite to need
Phase manual operation.So a kind of novel energy saving main transformer cooling control cabinet of research is necessary.
Utility model content
Purpose of utility model：The utility model provides a kind of suitable for the energy-saving of 330KV and above main transformer
Main transformer cooler switch board, the switch board realize the electric power energy-saving of transformer cooling system.
Technical solution：Including cabinet, two-way power frequency electric is accessed inside cabinet for a kind of energy-saving main transformer cooler switch board
Source, which is characterized in that be provided in the cabinet PLC controller, Switching Power Supply, two lead-in circuit breakers, several frequency converters and
Several contactors, two-way power frequency supply connects two lead-in circuit breakers respectively, and merges into power frequency busbar by lead-in circuit breaker；
The frequency converter connects one to one with the contactor, and forms several electrical source of power by power frequency bussed supply；It is each dynamic
Power power supply corresponds to every group of cooler of control；The PLC controller connects the Switching Power Supply and is powered by Switching Power Supply, PLC controls
Device processed to two-way power frequency supply switchover operation, the out-put supply frequency of the switchover operation of cooler and frequency converter carries out
Control.
Advantageous effect：A kind of energy-saving main transformer cooler switch board described in the utility model, suitable for 330KV and more than
Voltage class is controlled using the cooling of the air-cooled oil-immersed type transformer of forced oil-circulation.Wherein, by frequency converter according to being acquired
The variation of main transformer oil analog quantity and the supply frequency for adjusting output in real time, when main transformer oil is relatively low, run cooling blower
Power frequency operation pattern under relatively low frequency rather than in traditional technology reduces the energy consumption of cooler；PLC controller can
Periodically automatically switch to run with the operational mode of the double loop power supply to switch board and cooler group, solve tradition cooling control
The manual operation process of cabinet makes the operation of main transformer cooler more adapt to the requirement of current unattended station.
Wherein, be additionally provided in the cabinet it is several be spaced apart with several electrothermal relays, it is described to be spaced apart and the frequency converter one
One is correspondingly connected with, and is spaced apart and is connected between frequency converter and power frequency busbar；The electrothermal relay connects one to one with contactor, heat
Relay is connected between contactor and cooler.By being spaced apart, contactor and electrothermal relay individually supply each group of cooler
Electricity, being spaced apart of the electrical source of power circuit of every group of cooler, contactor and electrothermal relay are different from, and are realized to every group of cooler list
Solely while power supply, electrothermal relay can also realize the overload protection to cooler as protection element, ensure safety.
The cabinet is front and rear opening door, is additionally provided with the inside door across cabinet both sides on the inside of front door, is provided on inside door
Touch screen, several control buttons and indicator light.Operating parameter, more convenient operation set PLC controller, and touch by touch screen
It touches screen and is displayed for alarm logging, facilitate inquiry fault time and defect content, realize auto-control, status information
Change, show with it is user-friendly for operation.Indicator light and control button the method for operation, the operation conditions of cooler can be shown and
Manual switching.
Radiator fan, cabinet internal heater and ventilation hole are additionally provided in the cabinet, the radiator fan is arranged on cabinet
At the top of body；The cabinet internal heater and ventilation hole are arranged on bottom of cabinet bulk.When interior of equipment cabinet when the temperature is excessively high, pass through start heat dissipation
Fan, which is realized, reduces in-cabinet temperature；When interior of equipment cabinet temperature is too low, startup cabinet internal heater increases in-cabinet temperature.So as to the control
Cabinet meets high temperature, the equipment of extremely frigid zones normally starts and work.
Description of the drawings
Fig. 1 is the structure diagram of the energy-saving main transformer cooler switch board of the utility model；
Fig. 2 is the positive internal structure schematic diagram of energy-saving main transformer cooler switch board；
Fig. 3 is the back side internal structure schematic diagram of energy-saving main transformer cooler switch board.
Specific embodiment
In the following, with reference to the drawings and specific embodiments, the utility model is furtherd elucidate.
As shown in Figs. 1-3, a kind of energy-saving main transformer cooler switch board, including cabinet 1, cabinet 1 is front and rear opening door, preceding
Door inside is additionally provided with the inside door across cabinet both sides, and touch screen 12, several control buttons 14 and indicator light are provided on inside door
13.Inside door is opened, cabinet 1 is internally provided with two radiator fans 2, and radiator fan 2 is arranged at the top of cabinet 1, front in cabinet 1
Be equipped with several frequency converters 3 above the side of front door, 3 lower section of frequency converter be provided with it is several be spaced apart 4, be provided with if being spaced apart 4 lower sections
Stem grafting tentaculum 5, by the setting of 1 bottom of cabinet there are two lead-in circuit breaker 6,1 bottom of cabinet is additionally provided in cabinet and heats 5 lower section of contactor
Device 7, ventilation hole and entrance hole.1 back side of cabinet is provided with cabinet intraoral illumination lamp 8 by back door side, facilitates an inspection.Middle part is provided with
PLC controller 9 and Switching Power Supply 10, lower part are provided with several electrothermal relays 11.
Two-way power frequency supply, the using and the reserved, respectively inside the entrance hole of 1 bottom of cabinet access cabinet 1.Then connect respectively
Two lead-in circuit breakers 6 are connect, and power frequency busbar is merged by lead-in circuit breaker 6.Be spaced apart 4, frequency converter 3, contactor 5 and heat after
The one-to-one correspondence of electric appliance 11 is sequentially connected, and form several electrical source of power by power frequency bussed supply, and each electrical source of power is individually for
Every group of cooler power supply, forms mutually independent electrical source of power circuit, realizes the independent control to each group of cooler.PLC is controlled
Device 9 processed uses the programmable controller of SIMENS, and 9 connecting valve power supply 10 of PLC controller simultaneously provides direct current by Switching Power Supply 10
Power supply；Control to frequency converter 3, contactor 6 and lead-in circuit breaker 6 is realized by PLC controller.
Temperature of oil in transformer 4-20mA analog signals and 45 DEG C, 55 DEG C and 75 DEG C temperature nodes signals are passed by main transformer oil
Sensor introduces cabinet 1 through body terminal case, and rate of load condensate node signal introduces cabinet 1 by main transformer CT sensors through body terminal case.
Operating parameter is set by touch screen 12, the semaphore sent according to winding temperature transmitter carry out rotation speed of fan automatic adjustment with
And the control for putting into and exiting.By increasing acquisition of the PLC controller 9 to main transformer oil analog quantity, smooth adjusting master is realized
Become the speed of service of cooling blower so that switch board is in original main transformer oil temperature 45 C, 55 DEG C and 75 DEG C of three kinds of signal nodes
On the basis of increase cooler operation control variable.Coordinate the change of the realization main transformer cooling blower of frequency converter 3 by PLC controller 9
Frequency speed governing operation reduces the energy consumption level that traditional main transformer cooling blower still uses power frequency operation when main transformer oil is relatively low.
The out-put supply frequency of frequency converter 3 is according to the main transformer oil analog quantity real-time change acquired.
The switch board has three kinds of automatic operation mode, manual work pattern and security operating mode control modes, equipment fortune
Row more diversification and intelligence.The startup switching of two-way power frequency supply and the cooler method of operation is set on touch screen 12
Time cycle controls lead-in circuit breaker 6 and contactor 5 respectively by PLC controller 9, to realize to working power and cooler
The automatic switchover of group operational mode, realizes automatic operating, more adapts to the requirement of current unattended station.Meanwhile indicator light
13 and the method for operation, the operation conditions of cooler can be shown for control button 14 and manual switching.In automatic running side
Under formula, cooler can adjust running speed in real time, and PLC controller 9 can be real-time according to the out-put supply frequency of frequency converter 3
The operation conditions of cooler is monitored, when a certain group of cooler is out of service, PLC controller 9 can be automatically by failure cooler
It goes to cut off, automatically engages spare cooler；When PLC controller 9 breaks down, system can voluntarily detect fault-signal, from
Dynamic incision security operating mode, all cooler group whole power frequency startups ensure the safe operation of main transformer.And it is additionally provided with frequency conversion
Failure bypass operating loop；When 3 failure of frequency converter, contactor 5 can be switched to automatic or manual and bypasses the method for operation, will be run
In fault message be stored in touch screen 12 by communication port and failure contact teletransmission, while by finish message, can by " report
Alert record " option finds out specific fault time, defect content.Realize auto-control, status information, display and operation
Hommization.
1 internal environment humiture sampling sensor of cabinet is popped one's head in using three PT100, inside cabinet 1, according to ring
Border data control radiator fan 2 and cabinet internal heater 7 by PLC controller, ensure that the temperature in control cabinet, it is ensured that device
Normal operation.When 1 internal temperature of cabinet is excessively high, reduction in-cabinet temperature is realized by starting radiator fan 2；Inside cabinet 1
Temperature is too low, starts cabinet internal heater 7 and increases in-cabinet temperature.So as to the switch board, to meet high temperature, the equipment of extremely frigid zones normal
Start and work.The two side of cabinet 1 is equipped with air inlet dust-break sponge, and with rain and snow invasion, sun-proof and other are extraneous solid
Body invasion etc. is suitable for the outdoor characteristic used.
The energy-saving main transformer cooling of the intelligent energy-saving for being suitable for 330kV and above main transformer of the utility model
Device switch board topology layout is more compact, easy for installation, and debugging is simple, can automatically adjust environment temperature in cabinet, generally applicable
It is controlled in the main transformer cooler of High aititude, the 330kV of low ambient temperature and above, for using forced oil-circulation wind
The cooler Intelligent energy-savingization transformation of the large-scale main transformer of cold more than 330kV, uses energy-saving effect and becomes apparent.
Claims (5)
1. a kind of energy-saving main transformer cooler switch board including cabinet (1), accesses two-way power frequency supply inside cabinet (1), special
Sign is, PLC controller (9), Switching Power Supply (10), two lead-in circuit breakers (6), Ruo Ganbian are provided in the cabinet (1)
Frequency device (3) and several contactors (5), two-way power frequency supply connect two lead-in circuit breakers (6), and by lead-in circuit breaker respectively
(6) power frequency busbar is merged into；The frequency converter (3) connects one to one with the contactor (5), and by power frequency bussed supply shape
Into several electrical source of power；Each electrical source of power corresponds to every group of cooler of control；The PLC controller (9) connects the switch
Power supply (10) is simultaneously powered by Switching Power Supply (10), and PLC controller (9) is to switchover operation, the cooler to two-way power frequency supply
Switchover operation and the out-put supply frequency of frequency converter (3) controlled.
2. energy-saving main transformer cooler switch board according to claim 1, which is characterized in that also set in the cabinet (1)
Be equipped with it is several be spaced apart (4) and several electrothermal relays (11), be spaced apart (4) connect one to one with the frequency converter (3), are spaced apart
(4) it is connected between frequency converter (3) and power frequency busbar；The electrothermal relay (11) connects one to one with contactor (5), heat after
Electric appliance (11) is connected to contactor (5) between cooler.
3. energy-saving main transformer cooler switch board according to claim 1, which is characterized in that the cabinet (1) is front and rear
Opening door, front door inside are additionally provided with the inside door across cabinet (1) both sides, touch screen (12), several controls are provided on inside door
Button (14) and indicator light (13).
4. energy-saving main transformer cooler switch board according to claim 1, which is characterized in that also set in the cabinet (1)
Radiator fan (2), cabinet internal heater (7) and ventilation hole are equipped with, the radiator fan (2) is arranged at the top of cabinet (1)；It is described
Cabinet internal heater (7) and ventilation hole are arranged on cabinet (1) bottom.
5. energy-saving main transformer cooler switch board according to claim 1, which is characterized in that also set in the cabinet (1)
Air inlet dust-break sponge is equipped with, the air inlet dust-break sponge is arranged at cabinet (1) two side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721318371.XU CN207503068U (en) | 2017-10-12 | 2017-10-12 | A kind of energy-saving main transformer cooler switch board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721318371.XU CN207503068U (en) | 2017-10-12 | 2017-10-12 | A kind of energy-saving main transformer cooler switch board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207503068U true CN207503068U (en) | 2018-06-15 |
Family
ID=62500307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721318371.XU Active CN207503068U (en) | 2017-10-12 | 2017-10-12 | A kind of energy-saving main transformer cooler switch board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207503068U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109767894A (en) * | 2019-03-15 | 2019-05-17 | 国网黑龙江省电力有限公司哈尔滨供电公司 | Transformer intelligent air-cooling frequency conversion integrated system |
| CN110970814A (en) * | 2019-12-17 | 2020-04-07 | 南京绿源电气自动化有限公司 | Electric control cabinet for automatic lifting pump station |
| CN112103040A (en) * | 2020-09-18 | 2020-12-18 | 青岛罗德环境科技有限公司 | Cooling monitoring system and method for transformer |
| CN117833757A (en) * | 2024-03-06 | 2024-04-05 | 陕西金源自动化科技有限公司 | Control device and method for power transformer cooler |
-
2017
- 2017-10-12 CN CN201721318371.XU patent/CN207503068U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109767894A (en) * | 2019-03-15 | 2019-05-17 | 国网黑龙江省电力有限公司哈尔滨供电公司 | Transformer intelligent air-cooling frequency conversion integrated system |
| CN110970814A (en) * | 2019-12-17 | 2020-04-07 | 南京绿源电气自动化有限公司 | Electric control cabinet for automatic lifting pump station |
| CN112103040A (en) * | 2020-09-18 | 2020-12-18 | 青岛罗德环境科技有限公司 | Cooling monitoring system and method for transformer |
| CN117833757A (en) * | 2024-03-06 | 2024-04-05 | 陕西金源自动化科技有限公司 | Control device and method for power transformer cooler |
| CN117833757B (en) * | 2024-03-06 | 2024-04-30 | 陕西金源自动化科技有限公司 | Control device and method for power transformer cooler |
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