CN203733567U - Transformer air cooling control cabinet - Google Patents
Transformer air cooling control cabinet Download PDFInfo
- Publication number
- CN203733567U CN203733567U CN201420024395.4U CN201420024395U CN203733567U CN 203733567 U CN203733567 U CN 203733567U CN 201420024395 U CN201420024395 U CN 201420024395U CN 203733567 U CN203733567 U CN 203733567U
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- Prior art keywords
- power supply
- power
- cooling air
- cooling
- transformer
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- Expired - Fee Related
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- Protection Of Transformers (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model provides a transformer air cooling control cabinet which comprises a cabinet shell and an electrical device. The electrical device comprises a plurality of cooling fan sets, a frequently-used power source and a standby power source, and the frequently-used power source and the standby power source are connected with the cooling fan sets through an automatic double-power-source switching device which is connected with a heating device and a lighting device. A PLC master controller is connected with a manual operation device, an automatic switching device, a power source monitoring device, an overcurrent measuring device, a fan monitoring device, an oil pump monitoring device, an oil flow monitoring device and an oil temperature monitoring device through an input circuit and is connected with a signal indicating device, a communication interface and an alarming device through an output circuit. A control power source provides power for the PLC master controller, a signal indicating device and the alarming device. A manual operation switching button is connected with the cooling fan sets, the power supply reliability is high, and the transformer air cooling control cabinet is suitable for an outdoor severe environment, manual control can be adopted when automatic control fails, and the heating and cooling system is controlled in mechanical and electronic modes.
Description
Technical field
The utility model relates to transformer control appliance, specifically a kind of transformer air-cooled control cubicle.
Background technology
Electric power system by generating electricity, power transformation, transmission of electricity, distribution, the several links of electricity consumption form, wherein transformer is a very important element, its safe operation plays a very important role electric power system.Transformer is in running, and the iron loss in copper loss and iron core in winding all changes heat energy into, and the temperature of transformer various piece is raise, and is mainly determined by ageing of insulation degree the useful life of transformer, and ageing of insulation is mainly caused by variations in temperature.Result of study shows: surmounting in design temperature situation, 6 DEG C of the every risings of temperature, will reduce half the useful life of transformer, this be Transformer Insulation Aging six metrics.Temperature is to affect a transformer important indicator in useful life as can be seen here.
In the oil-immersed type transformer of 110kv, 220kv, 500kv, 1000kv, main adopt that Natural Oil Circulation Power is air-cooled, forced oil-circulation is air-cooled and three kinds of types of cooling of forced oil circulation water-cooling, wherein the overwhelming majority adopts the air-cooled and air-cooled type of cooling of forced oil-circulation of Natural Oil Circulation Power.
Utility model content
The utility model proposes a kind of transformer air-cooled control cubicle, to solve the problem of transformer high temperature ageing.
The technical solution of the utility model is achieved in that
A kind of transformer air-cooled control cubicle, comprises cabinet shell and the electric equipment that is positioned at described cabinet shell, and described electric equipment comprises:
Some groups of cooling air units, conventional power supply and stand-by power supplies, described conventional power supply is connected with described some groups of cooling air units by dual-power automatic switching device with stand-by power supply;
Described dual-power automatic switching device is also connected with heater and lighting device;
PLC main controller, is connected with manual running gear, automatic switching device, power source monitoring device, overcurrent measurement mechanism, blower fan monitoring arrangement, oil pump monitoring arrangement, oil stream monitoring arrangement and oil temperature monitoring arrangement by input circuit; Be connected with signal indicating device, communication interface and warning device by output circuit;
Controlling power supply, is described PLC main controller, signal indicating device and warning device power supply;
Manual switching button, is connected with described some groups of cooling air units.
Further, described dual-power automatic switching device is provided with: conventional power access end, stand-by power supply incoming end, conventional power supply instruction interface, stand-by power supply instruction interface, power supply output instruction interface and power output end;
Described conventional power supply instruction interface, stand-by power supply instruction interface and power supply output instruction interface are connected to respectively indicator light;
Described power output end is connected to power circuit, and described power circuit is connected with described some groups of cooling air units by circuit breaker.
Further, the cooling blower of described cooling air unit is connected with described circuit breaker with contactor by thermal relay.
Further, described cooling air unit has 8 groups.
Further, every group of cooling air unit comprises 4 cooling blowers.
Further, described cabinet shell is provided with observation window.
The beneficial effects of the utility model are:
1) adopt duplicate supply to throw mutually, one main one guarantees for mode the high reliability of powering.
2) controller adopts PLC, and its operating temperature range can reach-40 DEG C～+ 85 DEG C, is applicable to outdoor harsh high temperature, cold environmental conditions completely.
3) in the situation that automatically controlling inefficacy, can proceed to manual control.
4) can carry out communication and contact with Power Plant DCS (distributed control systems, scattered control system), unattended operation transformer station main system, so that various signal uplink and downgoing communication.
5) both can control by the switching value of temperature and load, also can precisely control by the analog quantity of temperature and load.
6) the inner heating and cooling system of control cubicle adopts machinery and the double mode control of electronics.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is electric equipment theory diagram of the present utility model;
Fig. 2 is dual-power automatic switching device of the present utility model and cooling air unit connection diagram.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, transformer air-cooled control cubicle in the present embodiment, comprise cabinet shell and the electric equipment that is positioned at cabinet shell, electric equipment comprises: some groups of cooling air units, conventional power supply and stand-by power supplies, and conventional power supply is connected with some groups of cooling air units by dual-power automatic switching device with stand-by power supply; Dual-power automatic switching device is also connected with heater and lighting device; PLC main controller, is connected with manual running gear, automatic switching device, power source monitoring device, overcurrent measurement mechanism, blower fan monitoring arrangement, oil pump monitoring arrangement, oil stream monitoring arrangement and oil temperature monitoring arrangement by input circuit; Be connected with signal indicating device, communication interface and warning device by output circuit; Controlling power supply, is PLC main controller, signal indicating device and warning device power supply; Manual switching button, is connected with some groups of cooling air units.
As shown in Figure 2, wherein, dual-power automatic switching device is provided with: conventional power access end, stand-by power supply incoming end, conventional power supply instruction interface, stand-by power supply instruction interface, power supply output instruction interface and power output end; Conventional power supply instruction interface, stand-by power supply instruction interface and power supply output instruction interface are connected to respectively indicator light H1, H2 and H3; Power output end is connected to power circuit L1, L2 and L3, and power circuit L1, L2 are connected with some groups of cooling air units by circuit breaker Q F1 with L3, only illustrate one group in figure.Cooling blower M1, M2, M3 and the M4 of cooling air unit is connected with circuit breaker Q F1 by thermal relay FR1, FR2, FR3 and FR4 and contactor KM1, KM2, KM3 and KM4 respectively.
In the present embodiment, cooling air unit has 8 groups, and every group of cooling air unit comprises 4 cooling blowers.Cabinet shell is provided with observation window.
The present embodiment is provided with lighting switch at cabinet door, in the time that cabinet door is opened, automatically starts lighting loop, and lighting device is opened, and closes Over-The-Counter behind the door, and lighting device cuts out automatically.
The present embodiment can be operated in manual control model.Under manual mode, all cooling blower is all in running order, and now, the operating state of cooling blower is not affected by the factor such as load current or oil temperature.When this kind of mode of operation overhauled for maintainer or operations staff or the time of taking emergency measures arrange.
Automatic control mode.Under automatic control mode, cooling blower starts automatically according to oil temperature, load condition, and can each group of cooling air unit and oil pump is divided into primary, for subsequent use.
The work of cooling air unit is subject to oil temperature monitoring arrangement or the control of overcurrent measurement mechanism, automatically enters default operating state, opens corresponding cooling air unit, to reach energy-conservation object.
In the time that oil temperature or load current reach preset value, the primary and backup cooling air unit of PLC main controller control starts and keeps certain hour, to prevent cooling air unit frequent starting for subsequent use.
In the time that certain group operation cooling air unit breaks down, PLC main controller detects its fault, and sends alarm signal, opens corresponding cooling air unit for subsequent use simultaneously.
PLC main controller is central control unit, the components and parts states such as Real-time Collection main transformer upper strata oil temperature, main transformer operating load, oil stream monitoring arrangement, then determine the quantity that drops into or excise cooling air unit according to these parameters.
The present embodiment externally connected with display screen, can set operational mode, cooling air unit full cut-off delay tripping time, power supply automatic alternate time and the cooling air unit operational mode rotation time of cooling air unit, cooling air unit can also be set flexibly for " work ", " assisting ", " for subsequent use ", " stopping " four kinds of operational modes, to reach the object in optimal control and extension device useful life.
When operation PLC main controller fault time, start whole cooling air units, and send alarm signal.
Distant place control model.Under control model, the ruuning situation of every group of cooling air unit can be monitored in control room, a distant place in the distance, and can start, stop any one group of cooling air unit.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (6)
1. a transformer air-cooled control cubicle, comprises cabinet shell and the electric equipment that is positioned at described cabinet shell, it is characterized in that, described electric equipment comprises:
Some groups of cooling air units, conventional power supply and stand-by power supplies, described conventional power supply is connected with described some groups of cooling air units by dual-power automatic switching device with stand-by power supply;
Described dual-power automatic switching device is also connected with heater and lighting device;
PLC main controller, is connected with manual running gear, automatic switching device, power source monitoring device, overcurrent measurement mechanism, blower fan monitoring arrangement, oil pump monitoring arrangement, oil stream monitoring arrangement and oil temperature monitoring arrangement by input circuit; Be connected with signal indicating device, communication interface and warning device by output circuit;
Controlling power supply, is described PLC main controller, signal indicating device and warning device power supply;
Manual switching button, is connected with described some groups of cooling air units.
2. a kind of transformer air-cooled control cubicle as claimed in claim 1, it is characterized in that, described dual-power automatic switching device is provided with: conventional power access end, stand-by power supply incoming end, conventional power supply instruction interface, stand-by power supply instruction interface, power supply output instruction interface and power output end;
Described conventional power supply instruction interface, stand-by power supply instruction interface and power supply output instruction interface are connected to respectively indicator light;
Described power output end is connected to power circuit, and described power circuit is connected with described some groups of cooling air units by circuit breaker.
3. a kind of transformer air-cooled control cubicle as claimed in claim 2, is characterized in that, the cooling blower of described cooling air unit is connected with described circuit breaker with contactor by thermal relay.
4. a kind of transformer air-cooled control cubicle as claimed in claim 3, is characterized in that, described cooling air unit has 8 groups.
5. a kind of transformer air-cooled control cubicle as claimed in claim 4, is characterized in that, every group of cooling air unit comprises 4 cooling blowers.
6. a kind of transformer air-cooled control cubicle as claimed in claim 5, is characterized in that, described cabinet shell is provided with observation window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420024395.4U CN203733567U (en) | 2014-01-15 | 2014-01-15 | Transformer air cooling control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420024395.4U CN203733567U (en) | 2014-01-15 | 2014-01-15 | Transformer air cooling control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203733567U true CN203733567U (en) | 2014-07-23 |
Family
ID=51203618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420024395.4U Expired - Fee Related CN203733567U (en) | 2014-01-15 | 2014-01-15 | Transformer air cooling control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203733567U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337401A (en) * | 2015-11-24 | 2016-02-17 | 王容 | Intelligent double-power switching system |
| CN106024306A (en) * | 2016-07-04 | 2016-10-12 | 国网北京市电力公司 | Transformer cooling system |
| CN109326416A (en) * | 2018-11-08 | 2019-02-12 | 保定市瑞泰电气有限公司 | A kind of transformer air-cooled control cabinet |
| CN112040714A (en) * | 2020-07-15 | 2020-12-04 | 陕西麟北煤业开发有限责任公司 | Power supply and monitoring point of cooling fan of frequency converter power unit cabinet |
| CN113495524A (en) * | 2021-06-21 | 2021-10-12 | 中国长江电力股份有限公司 | Integrated control system for transformer cooler |
| CN114334370A (en) * | 2021-11-24 | 2022-04-12 | 大唐渭南热电有限公司 | Oil level control system of oil-immersed transformer |
-
2014
- 2014-01-15 CN CN201420024395.4U patent/CN203733567U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337401A (en) * | 2015-11-24 | 2016-02-17 | 王容 | Intelligent double-power switching system |
| CN106024306A (en) * | 2016-07-04 | 2016-10-12 | 国网北京市电力公司 | Transformer cooling system |
| CN109326416A (en) * | 2018-11-08 | 2019-02-12 | 保定市瑞泰电气有限公司 | A kind of transformer air-cooled control cabinet |
| CN112040714A (en) * | 2020-07-15 | 2020-12-04 | 陕西麟北煤业开发有限责任公司 | Power supply and monitoring point of cooling fan of frequency converter power unit cabinet |
| CN113495524A (en) * | 2021-06-21 | 2021-10-12 | 中国长江电力股份有限公司 | Integrated control system for transformer cooler |
| CN114334370A (en) * | 2021-11-24 | 2022-04-12 | 大唐渭南热电有限公司 | Oil level control system of oil-immersed transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Air-cooled control cabinet for transformer Effective date of registration: 20160802 Granted publication date: 20140723 Pledgee: Qingdao Huitong Chinese financing Company limited by guarantee Pledgor: QINGDAO SHICHI ELECTRIC CO., LTD. Registration number: 2016990000668 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170623 Granted publication date: 20140723 Pledgee: Qingdao Huitong Chinese financing Company limited by guarantee Pledgor: QINGDAO SHICHI ELECTRIC CO., LTD. Registration number: 2016990000668 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20210115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |