CN103149956A - Digital temperature control type air cooler control device for transformer - Google Patents
Digital temperature control type air cooler control device for transformer Download PDFInfo
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- CN103149956A CN103149956A CN2013100874646A CN201310087464A CN103149956A CN 103149956 A CN103149956 A CN 103149956A CN 2013100874646 A CN2013100874646 A CN 2013100874646A CN 201310087464 A CN201310087464 A CN 201310087464A CN 103149956 A CN103149956 A CN 103149956A
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Abstract
The invention relates to a digital temperature control type air cooler control device for a transformer. The control device comprises an air-cooled automatic control box and a temperature controller. A display device is arranged on a panel of the air-cooled automatic control box. An X-band microwave transmitter-2 (XMT-2) type digital temperature regulator is adopted as a master controller in the air-cooled automatic control box. The temperature controller acquires the temperature of upper-layer oil of a main transformer in real time through a temperature measurement resistor and a temperature measurement module, and transmits a starting control command or stopping control command to the master controller in the air-cooled automatic control box according to a switching value to start or stop a fan motor. Various running states of the cooler can be accurately controlled, various running and failure states of the oil temperature of the main transformer can be accurately monitored, the control device can communicate with a microcomputer to realize signal transmission, and a breakthrough in the conventional control mode is made.
Description
Technical field
The present invention relates to a kind of cooling controller, relate in particular to a kind of digital temperature control transformer forced air cooler control device.
Background technology
Since confession agriculture unification, the new a large amount of rural power grids transformer station that receives, exist a large amount of old forced oil-circulation air cooled transformers, these transformer stations are distributed in each remote small towns mostly, transformer load be subjected to seasonal and coastal tidal effect larger, the transformer body temperature changed larger in one day, so had relatively high expectations for the forced air cooler of transformer, in actual motion work, find that there is following problem in existing transformer cooling control device:
Problem one: former main transformer cooler control system adopts winter summer operation mode, mostly carry out the manual switching operation by the person on duty of transformer station according to temperature of oil in transformer and environment temperature, need artificially to carry out the switchover operation mode according to Changes in weather, both inconvenience also indefinite concrete switching times, the personnel subjective factor of being subjected to affects larger, is unfavorable for the economical operation of transformer.Due to long-time manual switching refrigeratory fan, cause the regular start and stop of fan, not only affected the serviceable life of fan, and wasted a large amount of electric energy, also increase O﹠M personnel's working strength, if need long-time intermittent start and stop, also may cause the maloperation power switch.
Problem two: and part adopts the transformer of complete automaton, from operation a period of time, drive the coil of A.C. contactor due to the switching of adopting traditional temperature controller mechanical contact, this pattern complex circuit, the device fault rate is high, the temperature controller contact of the routine that adopts is few, capacity is little, error is large, the A.C. contactor of controlling the refrigeratory operating circuit starts frequent, easily burning in the contact, causes contact bad or sticking dead, becomes a very important factor of motor phase failure or insulation breakdown.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art, a kind of digital temperature control transformer forced air cooler control device is provided, solved and needed artificial switching, complex circuit, the problem that the device fault rate is high in prior art.
Technical scheme of the present invention is as follows:
Comprise air-cooled automatic control box and temperature controller; The display device of the signal of reflection main transformer cooler running status and each change-over switch and pilot lamp is set on air-cooled automatic control box panel; In air-cooled automatic control box, XMT---2 type digital temperature regulation instruments are master controller in employing; Temperature controller is by temperature detecting resistance and temperature measurement module, the temperature of Real-time Collection main-transformer upper strata oil; Send by switching value and start or stop the master controller of control command in the air-cooled automatic control box, the main controller controls A.C. contactor is realized starting or stoping of fan electromotor.
Described temperature detecting resistance is platinum resistance, and resistance signal converts 4～20 mA current signals to by transmission circuit and send into master controller in air-cooled automatic control box after A/D conversion.
Conducting and the shutoff of described main controller controls solid-state relay (SSR) realize the contact control of refrigeratory pilot relay, complete defencive function.
Described temperature controller is BWY_803ATH type temperature controller.
Advantageous effect of the present invention is as follows:
The running status that 1, can reflect intuitively main transformer cooler in wind cooling control box by display device, and the signal of each change-over switch and pilot lamp.If at automated manner, just process by temperature data, reach start-up temperature, carry out startup refrigeratory flow process, after temperature descends, reach when stopping temperature, transmission is ceased and desisted order, and stops refrigeratory.Realized Based Intelligent Control, increased refrigeratory operation life, reduced maintenance cost, energy-conserving action is obvious.If at manual mode, can service work needs actual in the scene, carry out manual operation.
2, XMT---2 type digital temperature regulation instruments (single-chip microcomputer) are master controller to the interior employing of air-cooled automatic control box, can be achieved as follows function, measuring ability: the oil temperature information that automatically detects transformer; Control function: manual/auto control refrigeratory work, device drops into or withdraws from refrigeratory automatically according to the temperature of oil in transformer height;
The remote monitoring function: by communicating by letter of this device and centralized control center, a distant place, can realize remote signalling, the remote signalling amount has temperature of oil in transformer and Transformer Winding temperature; Presentation Function: show the running statuses such as oil temperature by signal lamp and display screen; Set-up function: can set the parameters such as oil temperature that transformer dropped into or withdrawed from refrigeratory at display screen.
3, temperature controller is BWY_803ATH type temperature controller, can reflect in real time the every terms of informations such as main-transformer temperature, refrigeratory state, and every terms of information can be sent to the computer supervisory control system of Central Control Room.
Description of drawings
Fig. 1 is structural representation block diagram of the present invention.
Fig. 2 is principle of work schematic diagram of the present invention.
In figure, KM, A.C. contactor, WJ, temperature contact, KK, switch, RD, fuse.
Embodiment
The present invention in conjunction with specific embodiments, is described in detail as follows with reference to accompanying drawing.
Embodiment
As shown in Figure 1, comprise air-cooled automatic control box and temperature controller; The display device of the signal of reflection main transformer cooler running status and each change-over switch and pilot lamp is set on air-cooled automatic control box panel; In air-cooled automatic control box, XMT---2 type digital temperature regulation instruments are master controller in employing; Temperature controller is BWY_803ATH type temperature controller, and BWY_803ATH type temperature controller is by temperature detecting resistance and temperature measurement module, the temperature of Real-time Collection main-transformer upper strata oil; Send by switching value and start or stop the master controller of control command in the air-cooled automatic control box, the main controller controls A.C. contactor is realized starting or stoping of fan electromotor.
Described temperature detecting resistance is platinum resistance, and resistance signal converts 4～20 mA current signals to by transmission circuit and send into master controller in air-cooled automatic control box after A/D conversion.
Conducting and the shutoff of main controller controls solid-state relay (SSR) realize the contact control of refrigeratory pilot relay, complete defencive function.
In electric control loop of the present invention, power acquisition three-phase four-wire system wiring, consist of current supply circuit by air switch, contactor.The present invention can arrange the operations such as the debugging of refrigeratory start and stop temperature, involution in the scene of completing by button, realizes man-machine interface.
The present invention adopts the RS-232 serial ports, and apolegamy RS-232-RS-485 adapter is realized telecommunications functions according to transmitted signal, and the operating conditions such as the gentle cooling device state of transformer oil are uploaded to Supervisory Control System for Substation.
As shown in Figure 2, principle of work of the present invention is, when switch KK selects automatic catch, when the temperature variation of transformer reached the lowest temperature of temperature control box setting, generally at 45 ℃, temperature contact 1WJ1 connected, rise when temperature is lasting, when arriving the temperature of setting, generally at 55-60 ℃, temperature contact 1WJ2 connects, A.C. contactor KM2 excitation, contact is connected, A.C. contactor KM1 excitation, contact is connected, and starts fan electromotor; When temperature descended, when arriving the lower limit of setting, temperature contact 1WJ1 disconnected, A.C. contactor KM2 loss of excitation, and contact disconnects, A.C. contactor KM1 loss of excitation, contact disconnects, and disconnects fan electromotor.When switch KK selected manual gear, the switching fan electromotor, be not subjected to temperature limiting at any time.
This device is tested in front positive transformer station.1 66 kV matched transformer at this station have 6 0.75 kW fan electromotors.Fan electromotor is divided into 3 groups by symmetric position, 2 every group.Control the fan electromotor operation by oil temperature.The action oil temperature drops into fan when being set to 65 ℃, and oil temperature is lower than 45 ℃ of fan full cut-ofves.Realized the accurate monitoring to the fan electromotor operating condition, device ruuning situation is good, has reached the expection purpose.
This device shows through test run, it can control the various running statuses of refrigeratory exactly, the various operations of precise monitoring main transformer oil temperature, malfunction, and can and microcomputer communication realize that signal uploads, break through traditional control model, solved some problems that traditional control system exists.
Claims (4)
1. digital temperature control transformer forced air cooler control device, comprise air-cooled automatic control box and temperature controller; It is characterized in that arranging on air-cooled automatic control box panel the display device of the signal that reflects main transformer cooler running status and each change-over switch and pilot lamp; In air-cooled automatic control box, XMT---2 type digital temperature regulation instruments are master controller in employing; Temperature controller is by temperature detecting resistance and temperature measurement module, the temperature of Real-time Collection main-transformer upper strata oil; Send by switching value and start or stop the master controller of control command in the air-cooled automatic control box, the main controller controls A.C. contactor is realized starting or stoping of fan electromotor.
2. digital temperature control transformer forced air cooler control device according to claim 1, it is characterized in that described temperature detecting resistance is platinum resistance, resistance signal converts 4～20 mA current signals to by transmission circuit and send into master controller in air-cooled automatic control box after A/D conversion.
3. digital temperature control transformer forced air cooler control device according to claim 1; it is characterized in that conducting and the shutoff of described main controller controls solid-state relay (SSR); realize the contact control of refrigeratory pilot relay, complete defencive function.
4. digital temperature control transformer forced air cooler control device according to claim 1, is characterized in that described temperature controller is BWY_803ATH type temperature controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100874646A CN103149956A (en) | 2013-03-19 | 2013-03-19 | Digital temperature control type air cooler control device for transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100874646A CN103149956A (en) | 2013-03-19 | 2013-03-19 | Digital temperature control type air cooler control device for transformer |
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| CN103149956A true CN103149956A (en) | 2013-06-12 |
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| CN2013100874646A Pending CN103149956A (en) | 2013-03-19 | 2013-03-19 | Digital temperature control type air cooler control device for transformer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995512A (en) * | 2014-05-20 | 2014-08-20 | 沈阳鸿基电气有限公司 | Transformer temperature controller detecting system |
| CN104765358A (en) * | 2015-03-18 | 2015-07-08 | 国网河南省电力公司洛阳供电公司 | Potential fault prejudgment method of main changing air cooling control system |
| CN105655095A (en) * | 2016-03-22 | 2016-06-08 | 国网山西省电力公司临汾供电公司 | Air-cooled control device |
| CN106598117A (en) * | 2016-11-30 | 2017-04-26 | 国网山东省电力公司青州市供电公司 | Air cooling system of oil-immersed transformer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201576529U (en) * | 2009-12-16 | 2010-09-08 | 山东鼎鑫电气科技有限公司 | Variable-frequency air-cooling control cabinet of transformer |
| CN201902353U (en) * | 2010-11-25 | 2011-07-20 | 特变电工股份有限公司 | Controller for cooling fan |
| CN202167323U (en) * | 2011-07-26 | 2012-03-14 | 辽宁省电力有限公司丹东供电公司 | Remote and automatic switching device of transformer fan |
| CN102566618A (en) * | 2011-12-30 | 2012-07-11 | 常州海通电气自动化技术装备有限公司 | Anti-freezing device control system |
| CN202404420U (en) * | 2011-11-15 | 2012-08-29 | 保定变压器配件有限公司 | Power transformer intelligent frequency conversion air cooling control device |
| CN202771238U (en) * | 2012-08-30 | 2013-03-06 | 山东电力集团公司济南供电公司 | Transformer air-cooled control and protection device |
| CN203133635U (en) * | 2013-03-19 | 2013-08-14 | 国家电网公司 | Digital temperature control transformer air cooler control device |
-
2013
- 2013-03-19 CN CN2013100874646A patent/CN103149956A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201576529U (en) * | 2009-12-16 | 2010-09-08 | 山东鼎鑫电气科技有限公司 | Variable-frequency air-cooling control cabinet of transformer |
| CN201902353U (en) * | 2010-11-25 | 2011-07-20 | 特变电工股份有限公司 | Controller for cooling fan |
| CN202167323U (en) * | 2011-07-26 | 2012-03-14 | 辽宁省电力有限公司丹东供电公司 | Remote and automatic switching device of transformer fan |
| CN202404420U (en) * | 2011-11-15 | 2012-08-29 | 保定变压器配件有限公司 | Power transformer intelligent frequency conversion air cooling control device |
| CN102566618A (en) * | 2011-12-30 | 2012-07-11 | 常州海通电气自动化技术装备有限公司 | Anti-freezing device control system |
| CN202771238U (en) * | 2012-08-30 | 2013-03-06 | 山东电力集团公司济南供电公司 | Transformer air-cooled control and protection device |
| CN203133635U (en) * | 2013-03-19 | 2013-08-14 | 国家电网公司 | Digital temperature control transformer air cooler control device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995512A (en) * | 2014-05-20 | 2014-08-20 | 沈阳鸿基电气有限公司 | Transformer temperature controller detecting system |
| CN103995512B (en) * | 2014-05-20 | 2016-09-28 | 沈阳鸿基电气有限公司 | A kind of transformer temperature controller detecting system |
| CN104765358A (en) * | 2015-03-18 | 2015-07-08 | 国网河南省电力公司洛阳供电公司 | Potential fault prejudgment method of main changing air cooling control system |
| CN105655095A (en) * | 2016-03-22 | 2016-06-08 | 国网山西省电力公司临汾供电公司 | Air-cooled control device |
| CN106598117A (en) * | 2016-11-30 | 2017-04-26 | 国网山东省电力公司青州市供电公司 | Air cooling system of oil-immersed transformer |
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Application publication date: 20130612 |