CN202094500U - Air cooling control cabinet of main transformer of 220 kV - Google Patents

Air cooling control cabinet of main transformer of 220 kV Download PDF

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Publication number
CN202094500U
CN202094500U CN2011202049940U CN201120204994U CN202094500U CN 202094500 U CN202094500 U CN 202094500U CN 2011202049940 U CN2011202049940 U CN 2011202049940U CN 201120204994 U CN201120204994 U CN 201120204994U CN 202094500 U CN202094500 U CN 202094500U
Authority
CN
China
Prior art keywords
transformer
temperature
cabinet
air cooling
control cabinet
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.)
Expired - Lifetime
Application number
CN2011202049940U
Other languages
Chinese (zh)
Inventor
张俊
曹建
岳刚
曾骏林
刘栋果
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Original Assignee
Mianyang Power Bureau Sichuan Electric Power Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mianyang Power Bureau Sichuan Electric Power Co ltd filed Critical Mianyang Power Bureau Sichuan Electric Power Co ltd
Priority to CN2011202049940U priority Critical patent/CN202094500U/en
Application granted granted Critical
Publication of CN202094500U publication Critical patent/CN202094500U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses an air cooling control cabinet of a main transformer of 220 kV, relating to the technical field of a transformer air cooling system of a large transformer station of an electric power system. The air cooling control cabinet of a main transformer of 220 kV comprises a cabinet body connected with the transformer air cooling system, a bar-shaped isolation flat rack in the cabinet body, and a drawing fan; a square opening is arranged at a side of a cabinet body; a rain shielding plate and an isolation net are arranged at the outside of the opening; a drawing fan 3 is fixed on the opening; a temperature relay is arranged on a separator plate of the bar-shaped isolation flat rack, and is connected with a power line of the drawing fan; and one end of a hand-operated power switch is connected with the drawing fan, and the other end is connected with a secondary terminal of the control cabinet. Temperature of the temperature relay is set at 45 DEG C; the temperature relay is started; normal open contacts A and B are closed; and the drawing fan is automatically started, when temperature rises to the set value. The cooling effect of the air cooling control cabinet of a main transformer of 220 kV is obvious; and temperature of a seal control cabinet is effectively controlled.

Description

The active air-cooled control cubicle of a kind of 220kV transformer
Technical field
The utility model relates to electric power system large-scale substation Transformer Forced-Air Cooling System technical field, the active air-cooled control cubicle of especially a kind of 220kV transformer.
Background technology
The air-cooled control cubicle of 220kV Bulk Supply Substation is that the master control part of air cooling system generally is configured in outdoor placement with high-power transformer, and 220kV Bulk Supply Substation main transformer device is the air-cooled type of cooling of forced oil-circulation.This transformer rated capacity is big, and it is heavy to bear load, and caloric value is corresponding bigger.Therefore, provide wind-cooling heat dissipating particularly important to transformer.Temperature rise is very obvious in the summer cabinet, and control cubicle back panel wiring terminal, various sky are opened in addition, relay, secondary device etc. are numerous, make that caloric value continues to increase, and further cause the rising of temperature in the control cabinet.Because air-cooled control cubicle is airtight design, the cabinet door can not arbitrarily be opened, and panel designs for aluminium alloy, endothermic effect is outstanding, objectively caused the circulation of control cubicle cabinet inner air not smooth, temperature can't descend, and continues too high temperature the secondary device in the cabinet, various instrument and equipment are caused irreversible infringement.For example the too high faults such as secondary circuit broken string that cause of temperature both can cause the stoppage in transit of cooling fan, caused the transformer oil temperature rise again and can't lower the temperature, and directly threatened the transformer safe and stable operation.Find that after infrared thermoviewer is surveyed it is too high always to control in-cabinet temperature summer, when ambient temperature 30 was spent, in-cabinet temperature maintained 70 degree.When ambient temperature is 35 when spending, the control cubicle internal temperature is up to 80 degree.For example, temperature changing curve diagram shows in the air-cooled control cubicle of somewhere main transformer in one day summer 24 hours, and temperature 40 degree in morning 6 cabinets are 70 degree to 12 noon, reaches 80 at 14 in afternoon and spends.At the problems referred to above, the inventor has carried out transformation and temperature control to the sealing cabinet on the basis that does not influence transformer and wind system operation main body, solved above-mentioned defective preferably.
The utility model content
The purpose of this utility model is that the air-cooled control cubicle to the 220kV Bulk Supply Substation carries out improvement and design and temperature control, and is temperature required in the hope of making the active air-cooled control cubicle of transformer reach operation.
This novel purpose is achieved in that the active air-cooled control cubicle of a kind of 220kV transformer, comprise the cabinet 1 that is connected with Transformer Forced-Air Cooling System, the bar shaped interval grillage 2 in the cabinet 1, air exhauster 3, it is characterized in that, in cabinet 1 one sides one opening is arranged, in open outer side weather shield 1.2 and separation net 1.3 are housed, described air exhauster 3 is fixed on the opening; Described bar shaped grillage 2 at interval is provided with temperature relay 4, and temperature relay 4 is parallel on the power line of air exhauster 3, and manual power switch 5 one ends are connected with air exhauster 3, the other end be connected with control cubicle secondary terminal.
The active air-cooled control cubicle of described 220kV transformer is characterized in that, the opening of cabinet 1 one sides is squares.
The active air-cooled control cubicle of described 220kV transformer is characterized in that, described temperature relay 4 is fixed on the dividing plate 2.1 of bar shaped interval grillage 2.
The set point of the temperature relay 4 of the active air-cooled control cubicle of described 220kV transformer is set at 45 degree, and when temperature reached set point, temperature relay 4 started, normally opened contact A, B closure, and air exhauster 3 starts automatically.
Advantage of the present utility model shows; on the basis that does not influence high-power transformer and air cooling system thereof operation main body; the air cooling system control cubicle is designed an air exhauster opening to be installed blower fan and weather shield is installed and separation net; prevent that rainwater from going into control cubicle inside and causing partial short-circuit, prevented dust storm, foreign matter granule or toy enters control cubicle from device.The temperature relay that installs additional makes control cubicle both save electric energy, has also avoided the long-time on-load running of wind-cooling heat dissipating device, has reduced failure rate, has increased useful life.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Referring to Fig. 1, Fig. 2 as seen, the utility model is a kind of main control cabinet of 220kV transformer main transfer wind cooling system, be connected with Transformer Forced-Air Cooling System, air cooling system is being born the air-cooled cooling task to the 220kV high-power transformer, and what take is the air-cooled type of cooling of forced oil-circulation.What main control cabinet cabinet 1 adopted is aluminium alloy, and the bar shaped in the cabinet 1 is arranging at interval that some binding posts, various sky are opened on the grillage 2, relay, secondary device etc.The utility model is in cabinet 1 one sides one opening to be arranged, the 20cm place cuts the square aperture that the length of side is 15cm at cabinet lateral extent top, in open outer side weather shield 1.2 and separation net 1.3 are housed, have prevented dust storm, foreign matter granule or toy enters control cubicle from device; Prevented that rainwater from going into control cubicle inside and causing partial short-circuit.Described air exhauster 3 is fixed on the opening; Its rated power is one of the small-power blower fan of 5W, the specified alternating voltage 220V of this fan, maximum quantity of wind 102.75CFM, be 1CFM=28.3185 L/MIN, be that maximum quantity of wind is 102.75X28.3185=2010L/MIN, be the design of oil-containing ball bearing, rotating speed is 4000 rev/mins.
The described bar shaped space bar 2.1 of grillage 2 at interval is provided with temperature relay 4, and temperature relay 4 is parallel on the power line of air exhauster 3, and manual power switch 5 one ends are connected with air exhauster 3, the other end be connected with control cubicle secondary terminal.What temperature relay 4 was selected for use is the KT-LY4J type, and the temperature relay set point is set at temperature 45 degree, and when in-cabinet temperature is increased to 45 when spending, temperature relay starts, normally opened contact A, B closure, and air exhauster 3 starts automatically.Manual power switch 5 is an air exhauster control mains switch, input that can the manual adjustments air cooling system and withdrawing from.Through debugging the back is installed and finds that the temperature in the utility model control cubicle has obtained decline rapidly, cooling-down effect is obvious.

Claims (3)

1. active air-cooled control cubicle of 220kV transformer, comprise the cabinet (1) that is connected with Transformer Forced-Air Cooling System, the bar shaped gap bulkhead bracket (2) in the cabinet (1), air exhauster (3), it is characterized in that, in cabinet (1) one side one opening is arranged, in open outer side weather shield (1.2) and separation net (1.3) are housed, described air exhauster (3) is fixed on the opening; Described bar shaped grillage (2) at interval is provided with temperature relay (4), and temperature relay (4) is parallel on the power line of air exhauster (3), and manual power switch (5) one ends are connected with air exhauster (3), the other end be connected with control cubicle secondary terminal.
2. the active air-cooled control cubicle of a kind of 220kV transformer according to claim 1 is characterized in that, the opening of cabinet (1) one side is a square.
3. the active air-cooled control cubicle of a kind of 220kV transformer according to claim 1 is characterized in that, described temperature relay (4) is installed on the dividing plate (2.1) of bar shaped interval grillage (2).
CN2011202049940U 2011-06-17 2011-06-17 Air cooling control cabinet of main transformer of 220 kV Expired - Lifetime CN202094500U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202049940U CN202094500U (en) 2011-06-17 2011-06-17 Air cooling control cabinet of main transformer of 220 kV

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202049940U CN202094500U (en) 2011-06-17 2011-06-17 Air cooling control cabinet of main transformer of 220 kV

Publications (1)

Publication Number Publication Date
CN202094500U true CN202094500U (en) 2011-12-28

Family

ID=45369543

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202049940U Expired - Lifetime CN202094500U (en) 2011-06-17 2011-06-17 Air cooling control cabinet of main transformer of 220 kV

Country Status (1)

Country Link
CN (1) CN202094500U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103984372A (en) * 2014-04-25 2014-08-13 夏云美 Intelligent temperature control electric control cabinet
CN104638550A (en) * 2014-12-12 2015-05-20 国家电网公司 Transformer room ventilating device of mobile power supply vehicle
CN105700582A (en) * 2014-11-28 2016-06-22 国网河南省电力公司南阳供电公司 Temperature control system in switch cabinet

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103984372A (en) * 2014-04-25 2014-08-13 夏云美 Intelligent temperature control electric control cabinet
CN105700582A (en) * 2014-11-28 2016-06-22 国网河南省电力公司南阳供电公司 Temperature control system in switch cabinet
CN104638550A (en) * 2014-12-12 2015-05-20 国家电网公司 Transformer room ventilating device of mobile power supply vehicle
CN104638550B (en) * 2014-12-12 2017-07-14 国家电网公司 The ventilation of transformer room device of mobile power vehicle

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: STATE ELECTRIC NET CROP.

Effective date: 20140103

C41 Transfer of patent application or patent right or utility model
C56 Change in the name or address of the patentee

Owner name: MIANYANG POWER SUPPLY COMPANY, STATE GRID SICHUAN

Free format text: FORMER NAME: MIANYANG ELECTRIC POWER BUREAU OF SICHUAN ELECTRIC POWER CORP.

CP01 Change in the name or title of a patent holder

Address after: 621000 Mianyang city of Sichuan Province sword South Road West No. 16

Patentee after: Mianyang Power Supply Company, State Grid Sichuan Electric Power Company

Address before: 621000 Mianyang city of Sichuan Province sword South Road West No. 16

Patentee before: Mianyang Electric Power Bureau, Sichuan Electric Power Corporation

TR01 Transfer of patent right

Effective date of registration: 20140103

Address after: 621000 Mianyang city of Sichuan Province sword South Road West No. 16

Patentee after: Mianyang Power Supply Company, State Grid Sichuan Electric Power Company

Patentee after: State Grid Corporation of China

Address before: 621000 Mianyang city of Sichuan Province sword South Road West No. 16

Patentee before: Mianyang Power Supply Company, State Grid Sichuan Electric Power Company

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20111228