CN103425150A - Transformer fan controller - Google Patents
Transformer fan controller Download PDFInfo
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- CN103425150A CN103425150A CN2013103279163A CN201310327916A CN103425150A CN 103425150 A CN103425150 A CN 103425150A CN 2013103279163 A CN2013103279163 A CN 2013103279163A CN 201310327916 A CN201310327916 A CN 201310327916A CN 103425150 A CN103425150 A CN 103425150A
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- transformer
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Abstract
The invention discloses a transformer fan controller. The transformer fan controller comprises a temperature controller and a second relay. The temperature controller comprises a detector, a controller, a switch K1 and a switch K2. A probe of the detector is contacted with an oil tank of a transformer, an output end of the detector is connected to the controller, and a control end of the switch K1 and a control end of the switch K2 are also connected to the controller. The transformer fan controller has the advantages that the temperature of the transformer oil tank is detected, whether a fan is started is controlled according to the temperature, the fan is started to perform cooling only when the temperature of the transformer oil tank is higher than a certain limit, the fan does not need to be always on, and power is saved; a time switch is adopted to control the fan, and accordingly fan starting is controlled in a staged mode.
Description
Technical field
The present invention relates to the electrical control field, particularly relate to a kind of transformer blower fan controller.
Background technology
General transformer has by blower fan and is dispelled the heat, and as Fig. 1, blower fan M is generally by electrothermal relay EH, the first relay K M and air switch QF incoming transport power supply, and blower fan M starts always, wastes very much electric energy.
Summary of the invention
The object of the invention is to overcome the shortcoming and defect of above-mentioned prior art, the transformer blower fan controller is provided, solve the existing blower fan that transformer is dispelled the heat because constantly start, thus the defect of significant wastage electric energy.
Purpose of the present invention is achieved through the following technical solutions: the transformer blower fan controller, comprise temperature controller, time switch KT and the second relay, described temperature controller comprises detector, controller, K switch 1 and K switch 2, the probe of described detector touches the fuel tank of transformer, its output is connected to controller, the control end of described K switch 1 and K switch 2 also is connected to controller, the coil P1 of the second relay, K switch 1, K switch 2 and power supply AC form a loop, the normal open switch K4 of the second relay is connected in parallel on K switch 2, the normal open switch K3 of the second relay, the thermal element P3 of electrothermal relay EH, the coil P2 of the first relay K M and power supply AC form a loop, the inlet side of described time switch KT connects the live wire of power supply AC, the T end connects the zero line of power supply AC, go out the thermal element P3 of end through electrothermal relay EH, the coil P2 of the first relay K M connects the zero line of power supply AC.In this patent, when the fuel tank temperature that detector detects transformer exceeds boundary, transmit a signal to controller, controller gauge tap K2 is closed (in lowest limit between high threshold the time, controller meeting gauge tap K1 closure), the coil P1 of such the second relay, K switch 1, the loop start that K switch 2 and power supply AC form, after the coil of KM1 connects electricity, make its normal open switch K3 and normal open switch K4 closure, the thermal element P3 of electrothermal relay EH, the coil P2 of the first relay K M connects with the mains, electrothermal relay EH and the first relay K M are activated, make blower fan access power supply, thereby start, to oil tank of transformer, lower the temperature, when following to high threshold after the oil tank of transformer temperature reduces, K switch 2 disconnects, but the normal open switch K4 in parallel with K2 is closed, so blower fan continues unlatching, when the oil tank of transformer temperature is reduced to lowest limit, K switch 1 disconnects, thereby makes blower fan shut down.
Further, also be in series with a push switch SB3 on the coil P1 of described the second relay, K switch 1, K switch 2 and a loop of power supply AC formation, for manually controlling the unlatching of this fan control box.
Further, also comprise a time switch KT, the inlet side of described time switch KT connects the live wire of power supply AC, the T end connects the zero line of power supply AC, go out the thermal element P3 of end through electrothermal relay EH, the coil P2 of the first relay K M connects the zero line of power supply AC, adopt time switch KT, time is while arriving default start-up time, time switch KT goes out to hold output supply voltage, electrothermal relay EH and the first relay K M are activated, the blower fan entry into service, arrive preset stopping during the time when the time, time switch KT goes out to hold Non voltage output, electrothermal relay EH and the first relay K M disconnect, blower fan shuts down, to the next one, period repetition start and stop action is set, 8 periods can be set altogether in controller.
Further, be provided with a push switch SB2 between the live wire of the inlet side of described time switch KT and power supply AC, manually control time switch and whether enable.
Further, be parallel with a push switch SB1 on the normal open switch K3 of the second above-mentioned relay, for manually direct starter motor, make motor often open, use when temperature control, time control are broken down.
Further, the normal open switch K5 of the first above-mentioned relay K M be connected to power supply AC two ends after display lamp HG connects, connect electricity at the first relay K M coil like this, when the first relay K M starts, normal open switch K5 can be closed, and display lamp HG can light, thus the prompting staff.
Further, the normally closed switch K6 of the first above-mentioned relay K M be connected to power supply AC two ends after display lamp HR connects, when the first relay K M coil losing electricity, when it is closed, normally closed switch K6 can be closed, thus the prompting staff.
The invention has the beneficial effects as follows:
(1) whether the present invention surveys the temperature of oil tank of transformer, according to the height of this temperature, thereby control blower fan, open, and only, when the oil tank of transformer temperature exceeds certain limit, just opens blower fan and is lowered the temperature, and without always opening blower fan, has saved power supply;
(2) the present invention also adopts time switch to be controlled blower fan, thereby controls the startup of blower fan stagely.
The accompanying drawing explanation
The wiring diagram that Fig. 1 is motor;
The circuit diagram that Fig. 2 is embodiment 1;
The structured flowchart that Fig. 3 is temperature controller in embodiment 1;
The circuit diagram that Fig. 4 is embodiment 2;
The circuit diagram that Fig. 5 is embodiment 3.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but structure of the present invention is not limited only to following examples:
[embodiment 1]
As Fig. 2, shown in Fig. 3, the transformer blower fan controller, comprise temperature controller, time switch KT and the second relay, described temperature controller comprises detector, controller, K switch 1 and K switch 2, the probe of described detector touches the fuel tank of transformer, its output is connected to controller, the control end of described K switch 1 and K switch 2 also is connected to controller, the coil P1 of the second relay, K switch 1, K switch 2 and power supply AC form a loop, the normal open switch K4 of the second relay is connected in parallel on K switch 2, the normal open switch K3 of the second relay, the thermal element P3 of electrothermal relay EH, the coil P2 of the first relay K M and power supply AC form a loop, the inlet side of described time switch KT connects the live wire of power supply AC, the T end connects the zero line of power supply AC, go out the thermal element P3 of end through electrothermal relay EH, the coil P2 of the first relay K M connects the zero line of power supply AC.In this patent, when the fuel tank temperature that detector detects transformer exceeds boundary, transmit a signal to controller, controller gauge tap K2 is closed (in lowest limit between high threshold the time, controller meeting gauge tap K1 closure), the coil P1 of such the second relay, K switch 1, the loop start that K switch 2 and power supply AC form, after the coil P1 of KM1 connects electricity, make its normal open switch K3 and normal open switch K4 closure, the thermal element P3 of electrothermal relay EH, the coil P2 of the first relay K M connects with the mains, electrothermal relay EH and the first relay K M are activated, make blower fan access power supply, thereby start, to oil tank of transformer, lower the temperature, when following to high threshold after the oil tank of transformer temperature reduces, K switch 2 disconnects, but the normal open switch K4 in parallel with K2 is closed, so blower fan continues unlatching, when the oil tank of transformer temperature is reduced to lowest limit, K switch 1 disconnects, thereby makes blower fan shut down.
In the present embodiment, detector is temperature inductor, and probe is the detection probe of temperature inductor, single-chip microcomputer of controller, and the signal of reception temperature inductor, and according to this Signal-controlled switch K1 and K switch 2.
[embodiment 2]
As shown in Figure 4, the structure of the present embodiment and embodiment 1 are basically identical, difference is also to comprise a time switch KT, the inlet side of described time switch KT connects the live wire of power supply AC, the T end connects the zero line of power supply AC, go out the thermal element P3 of end through electrothermal relay EH, the coil P2 of the first relay K M connects the zero line of power supply AC, adopt time switch KT, time is while arriving default start-up time, time switch KT goes out to hold output supply voltage, electrothermal relay EH and the first relay K M are activated, the blower fan entry into service, arrive preset stopping during the time when the time, time switch KT goes out to hold Non voltage output, electrothermal relay EH and the first relay K M disconnect, blower fan shuts down, to the next one, period repetition start and stop action is set, 8 periods can be set altogether in controller.
Also be in series with a push switch SB3 on the coil P1 of the second relay, K switch 1, K switch 2 and a loop of power supply AC formation in the present embodiment, for manually controlling the unlatching of this fan control box.
Be provided with a push switch SB2 in the present embodiment between the live wire of the inlet side of time switch KT and power supply AC, manually control time switch and whether enable.
Be parallel with a push switch SB1 in the present embodiment on the normal open switch K3 of the second relay, for manually direct starter motor, make motor often open, use when temperature control, time control are broken down.
[embodiment 3]
As shown in Figure 5, the structure of the present embodiment and embodiment 2 are basically identical, the normal open switch K5 that difference is the first relay K M be connected to power supply AC two ends after display lamp HG connects, connect electricity at the first relay K M coil like this, when the first relay K M starts, normal open switch K5 can be closed, and display lamp HG can light, thus the prompting staff.
In the present embodiment the normally closed switch K6 of the first relay K M be connected to power supply AC two ends after display lamp HR connects, when the first relay K M coil losing electricity, when it is closed, normally closed switch K6 can be closed, thus the prompting staff.
Claims (7)
1. transformer blower fan controller, it is characterized in that, comprise temperature controller and the second relay, described temperature controller comprises detector, controller, K switch 1 and K switch 2, the probe of described detector touches the fuel tank of transformer, its output is connected to controller, the control end of described K switch 1 and K switch 2 also is connected to controller, the coil P1 of the second relay, K switch 1, K switch 2 and power supply AC form a loop, the normal open switch K4 of the second relay is connected in parallel on K switch 2, the normal open switch K3 of the second relay, the thermal element P3 of electrothermal relay EH, the coil P2 of the first relay K M and power supply AC form a loop.
2. transformer blower fan controller according to claim 1, is characterized in that, on the coil P1 of described the second relay, K switch 1, K switch 2 and a loop of power supply AC formation, also is in series with a push switch SB3.
3. transformer blower fan controller according to claim 1, it is characterized in that, also comprise a time switch KT, the inlet side of described time switch KT connects the live wire of power supply AC, the T end connects the zero line of power supply AC, goes out end and connects the zero line of power supply AC through the thermal element P3 of electrothermal relay EH, the coil P2 of the first relay K M.
4. transformer blower fan controller according to claim 3, is characterized in that, is provided with a push switch SB2 between the live wire of the inlet side of described time switch KT and power supply AC.
5. transformer blower fan controller according to claim 1, is characterized in that, is parallel with a push switch SB1 on the normal open switch K3 of described the second relay.
6. transformer blower fan controller according to claim 1, is characterized in that, the normal open switch K5 of described the first relay K M be connected to power supply AC two ends after display lamp HG connects.
7. transformer blower fan controller according to claim 1, is characterized in that, the normally closed switch K6 of described the first relay K M be connected to power supply AC two ends after display lamp HR connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103279163A CN103425150A (en) | 2013-07-31 | 2013-07-31 | Transformer fan controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103279163A CN103425150A (en) | 2013-07-31 | 2013-07-31 | Transformer fan controller |
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| Publication Number | Publication Date |
|---|---|
| CN103425150A true CN103425150A (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103279163A Pending CN103425150A (en) | 2013-07-31 | 2013-07-31 | Transformer fan controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104200956A (en) * | 2014-09-04 | 2014-12-10 | 特变电工西安电气科技有限公司 | Regulating and controlling system and method for fan of three-phase transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86203510U (en) * | 1986-05-15 | 1988-06-15 | 韩柏青 | Air cooled ventilator for transformer |
| CN201876742U (en) * | 2010-12-08 | 2011-06-22 | 山东联合化工股份有限公司 | Temperature reduction self-control device of transformer |
| CN201974710U (en) * | 2010-12-01 | 2011-09-14 | 河南省电力公司南阳供电公司 | Automatic air cooling control device for main transformer |
| CN102402233A (en) * | 2010-09-09 | 2012-04-04 | 辽宁省电力有限公司大连供电公司 | Self-control device of transformer cooling system |
| CN203433382U (en) * | 2013-07-31 | 2014-02-12 | 国家电网公司 | Multifunctional control box for transformer fan |
-
2013
- 2013-07-31 CN CN2013103279163A patent/CN103425150A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86203510U (en) * | 1986-05-15 | 1988-06-15 | 韩柏青 | Air cooled ventilator for transformer |
| CN102402233A (en) * | 2010-09-09 | 2012-04-04 | 辽宁省电力有限公司大连供电公司 | Self-control device of transformer cooling system |
| CN201974710U (en) * | 2010-12-01 | 2011-09-14 | 河南省电力公司南阳供电公司 | Automatic air cooling control device for main transformer |
| CN201876742U (en) * | 2010-12-08 | 2011-06-22 | 山东联合化工股份有限公司 | Temperature reduction self-control device of transformer |
| CN203433382U (en) * | 2013-07-31 | 2014-02-12 | 国家电网公司 | Multifunctional control box for transformer fan |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104200956A (en) * | 2014-09-04 | 2014-12-10 | 特变电工西安电气科技有限公司 | Regulating and controlling system and method for fan of three-phase transformer |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: ZIGONG POWER SUPPLY COMPANY, STATE GRID SICHUAN EL Effective date: 20140106 Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: CHENGDU ELECTRIC POWER BUREAU DOUBLE CURRENT POWER SUPPLY BUREAU Effective date: 20140106 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 610000 CHENGDU, SICHUAN PROVINCE TO: 100031 XICHENG, BEIJING |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20140106 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: Guo Wang Sichuan Province Power Co., Ltd Zi Gong electric company Address before: 610000, Sichuan, Chengdu province Shuangliu County Dongsheng Town, No. 35 Canton Avenue Applicant before: Shuangliu Power Supply Bureau, Chengdu Electric Power Bureau |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131204 |