CN103824680A - On-line intelligent oil recharging device and method for electric oil-charged transformer - Google Patents
On-line intelligent oil recharging device and method for electric oil-charged transformer Download PDFInfo
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- CN103824680A CN103824680A CN201410072923.8A CN201410072923A CN103824680A CN 103824680 A CN103824680 A CN 103824680A CN 201410072923 A CN201410072923 A CN 201410072923A CN 103824680 A CN103824680 A CN 103824680A
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- mutual inductor
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- gasoline pump
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Abstract
The invention relates to an on-line intelligent oil supply device and an on-line intelligent oil recharging method for an electric oil-immersed transformer. The device comprises an oil storage tank with an oil outlet valve, a variable-frequency petrol pump, a three-way connecting pipe and an oil recharging connecting pipe, wherein the oil outlet valve of the oil storage tank is connected with the inlet of the variable-frequency petrol pump; the outlet of the variable-frequency petrol pump is connected with the oil inlet end of the three-way connecting pipe; the three-way connecting pipe is provided with a pressure sensor with a pressure limiting control function; the oil outlet end of the three-way connecting pipe is provided with a refueling solenoid valve; the refueling solenoid valve is connected with a fuel outlet valve of the electric oil-charged transformer through the oil recharging connecting pipe; the electric oil-charged transformer is provided with an electric contact oil level gauge used for detecting oil level; the oil draining end of the three-way connecting pipe is provided with an oil draining valve; the variable-frequency petrol pump, the pressure sensor, the refueling solenoid valve and the electric contact oil level gauge are all electrically connected with a control module. The on-line intelligent oil recharging device can work on the ground, power cut and climbing are not required, the on-line intelligent oil recharging device is time-saving, labor-saving, safe and reliable, and the device and the method have incomparable advantages compared with the traditional oil recharging mode.
Description
Technical field
The present invention relates to a kind of electric power oil-filled mutual inductor on-line intelligence recharging oil device and method.
Background technology
Operating electric power oil-filled mutual inductor, in the time that its oil level is reduced to a certain degree, its coil and terminals may break down not due to insulation, particularly more easily break down the in the situation that of intrusion at poor sealing, moisture, therefore in the time that electric power oil-filled mutual inductor oil level is not enough, should carry out in time repairing.Traditional repairing mode of electric power oil-filled mutual inductor is as follows: need will have a power failure and turn after inspecting state until the electric power oil-filled mutual inductor of repairing, several staff are dressing safety belt, personal protective equipment, bring after various Work tools, climb up the electric power oil-filled mutual inductor top fueling operation of uncapping, impact owing to refueling oil stream, refuel after finishing and need venting, whole process needs many people ascend operation, must power failure just can carry out work, whole process wastes time and energy, and has the hazards of many people truck work.
Summary of the invention
In order to overcome the deficiencies in the prior art part, the object of the present invention is to provide a kind of electric power oil-filled mutual inductor on-line intelligence recharging oil device and method that can realize online repairing.
To achieve these goals, technical scheme one of the present invention is: a kind of electric power oil-filled mutual inductor on-line intelligence recharging oil device, include the oil tank with delivery valve, frequency conversion gasoline pump, three connecting pipes and repairing connecting leg, the delivery valve of described oil tank connects the import of frequency conversion gasoline pump, the oil inlet end of described frequency conversion gasoline pump outlet connecting tee connecting leg, on described three connecting pipes, the pressure sensor with pressure limiting control is installed, the oil outlet end of described three connecting pipes is provided with and adds solenoid, the described solenoid that adds is connected with the fuel outlet valve of electric power oil-filled mutual inductor by repairing connecting leg, electric contact oil level indicator for detection of oil level is installed on described electric power oil-filled mutual inductor, on the oil extraction end of described three connecting pipes, draining valve is installed, described frequency conversion gasoline pump, pressure sensor, add solenoid and electric contact oil level indicator is all electrically connected and control module, described control module receives the signal of pressure sensor and electric contact oil level indicator and controls frequency conversion gasoline pump and the action that adds solenoid.
Further, described control module comprises high oil level automatic control circuit, pressure limiting automatic control circuit and pressure reduction automatic frequency-conversion control circuit.
Further, described control module is PLC or single-chip microcomputer.
To achieve these goals, technical scheme two of the present invention is: a kind of electric power oil-filled mutual inductor on-line intelligence oil supplement method, adopt electric power oil-filled mutual inductor on-line intelligence recharging oil device as above, while starting repairing, on the fuel outlet valve of first turns on power oil-filled mutual inductor bottom and three connecting pipes, add solenoid, unscrew the air relief cock at frequency conversion gasoline pump top, three connecting pipes and frequency conversion gasoline pump are carried out to exhaust oiling, when draining, air relief cock air starts when fuel-displaced, screw air relief cock, exhaust oiling finishes; Open again delivery valve and the frequency conversion gasoline pump of oil tank, to the repairing of releiving of electric power oil-filled mutual inductor, pressure sensor by electric power oil-filled mutual inductor internal pressure value sensing to control module, by the frequency of control module control frequency conversion gasoline pump to guarantee to releive all the time repairing, in the time that specified oil level is arrived in repairing, the action of electric contact oil level indicator, is automatically closed frequency conversion gasoline pump and is added solenoid by control module; Finally close the fuel outlet valve of electric power oil-filled mutual inductor and the delivery valve of oil tank, the draining valve of opening on three connecting pipes drains after the oil in pipeline, repairing end-of-job.
Compared with prior art, the present invention has following beneficial effect: without having a power failure, ascending a height and climb up the oiling of oil-filled mutual inductor top without personnel, just can work on the ground, time saving and energy saving, and avoided traditional gasoline pump add oil pressure uncontrollable and produce that oil stream impacts, splashes, turbulent flow and cause the unsafe condition of the inner generation of electric power oil-filled mutual inductor in service discharge fault, can in charging operation, carry out safe, efficient, economic repairing work thereby realized electric power oil-filled mutual inductor, there is the advantage that can not intend ratio compared with traditional repairing mode.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the high oil level automatic control loop figure of the embodiment of the present invention.
Fig. 3 is that the high oil level of the embodiment of the present invention is controlled main wiring diagram automatically.
Fig. 4 is the pressure limiting automatic control loop figure of the embodiment of the present invention.
Fig. 5 is that main wiring diagram is controlled in the pressure limiting of the embodiment of the present invention automatically.
Fig. 6 is the pressure reduction automatic frequency-conversion control drawing of the embodiment of the present invention.
Fig. 7 is the pressure reduction automatic frequency-conversion control main wiring diagram of the embodiment of the present invention.
In figure: 1-electric contact oil level indicator, 2-electric power oil-filled mutual inductor, 3-transformer oil, 4-fuel outlet valve, 5-pressure sensor, 6-adds solenoid, 7-frequency conversion gasoline pump, 8-oil level pointer, 9-delivery valve, 10-oil tank, 11-draining valve, 12-air relief cock, 13-tri-connecting pipes, 14-repairing connecting leg; The relay of DJ1-electro connecting pressure gauge, the relay of DJ2-pressure sensor, K1, K2-switch, C1-adds solenoid, P-frequency conversion gasoline pump, FU-fuse, N-ground connection, ∽ 220V-alternating current 220V, ∽ 380V-alternating current 380V.
Embodiment
As shown in Fig. 1 ~ 7, a kind of electric power oil-filled mutual inductor on-line intelligence recharging oil device, include the oil tank 10 with delivery valve 9, frequency conversion gasoline pump 7, three connecting pipes 13 and repairing connecting leg 14, the delivery valve 9 of described oil tank 10 connects 7 imports of frequency conversion gasoline pump, described frequency conversion gasoline pump 7 exports the oil inlet end of connecting tee connecting leg 13, on described three connecting pipes 13, the pressure sensor 5 with pressure limiting control is installed, the oil outlet end of described three connecting pipes 13 is provided with and adds solenoid 6, the described solenoid 6 that adds is connected with the fuel outlet valve 4 of electric power oil-filled mutual inductor 2 by repairing connecting leg 14, electric contact oil level indicator 1 for detection of oil level is installed on described electric power oil-filled mutual inductor 2, on the oil extraction end of described three connecting pipes 13, draining valve 11 is installed, described frequency conversion gasoline pump 7, pressure sensor 5, adding solenoid 6 and electric contact oil level indicator 1 is all electrically connected and control module, described control module receives the signal of pressure sensor 5 and electric contact oil level indicator 1 and controls frequency conversion gasoline pump 7 and the action that adds solenoid 6.
In the present embodiment, described control module comprises high oil level automatic control circuit, pressure limiting automatic control circuit and pressure reduction automatic frequency-conversion control circuit; Described control module can be PLC, can be also the intelligent control chips such as single-chip microcomputer, and it presses program designed, programming according to pressure sensor signal and oil level control signal, controls the variable-frequency motor of frequency conversion gasoline pump 7 and the action of electromagnetically operated valve.High oil level automatic control circuit as shown in Fig. 2 ~ 3, in the time that oil level limit point is arrived in the interior repairing of electric power oil-filled mutual inductor 2, K1 switch closure, the relay DJ1 action of electro connecting pressure gauge, frequency conversion gasoline pump P quits work, and adds solenoid C and closes.The spacing automatic control circuit of pressure as shown in 4 ~ 5, in the time that pressure sensor 5 detects that oil compensation pressure arrives pressure limit point, K2 switch cuts out, the relay DJ2 action of pressure sensor, frequency conversion gasoline pump P quits work, and adds solenoid C and closes.Pressure reduction automatic frequency-conversion control circuit as shown in Fig. 6 ~ 7, in the time that the pressure difference sensing probe of pressure sensor 5 detects that oil pressure is poor and departs from the dynamic contact of instrument transformer internal differential pressure value, K2 switch cuts out, the relay DJ2 action of pressure sensor, instrument transformer differential pressure controller regulates the motor speed of frequency conversion gasoline pump P by frequency converter, keep with the repairing of releiving a little more than the pressure of electric power oil-filled mutual inductor 2 internal oil pressure.
As shown in Fig. 1 ~ 7, a kind of electric power oil-filled mutual inductor on-line intelligence oil supplement method, adopt electric power oil-filled mutual inductor on-line intelligence recharging oil device as above, while starting repairing, on the fuel outlet valve 4 of first turns on power oil-filled mutual inductor 2 bottoms and three connecting pipes 13, add solenoid 6, allow the oil of electric power oil-filled mutual inductor 2 naturally flow down and fill three connecting pipes 13 and frequency conversion gasoline pump 7, unscrew the air relief cock 12 at frequency conversion gasoline pump 7 tops, three connecting pipes 13 and frequency conversion gasoline pump 7 are carried out to exhaust oiling, when draining, air relief cock 12 air start when fuel-displaced, screw air relief cock 12, exhaust oiling finishes, open again delivery valve 9 and the frequency conversion gasoline pump 7 of oil tank 10, to electric power oil-filled mutual inductor 2 repairing of releiving, pressure sensor 5 by electric power oil-filled mutual inductor 2 internal oil pressure data real-time sensings to control module, by control module according to the frequency of pressure reduction parameter control frequency conversion gasoline pump 7 of setting, automatically adjust frequency conversion gasoline pump 7 all the time with the repairing of releiving a little more than the pressure of electric power oil-filled mutual inductor 2 internal oil pressure, there is not oil stream and impact in the overall process that guarantees to refuel, turbulent flow, the situation such as splash and cause the inner contingent electric discharge catastrophe failure of transformer, in the time that repairing is pointed to specified oil level scale to the oil level pointer 8 of electric contact oil level indicator 1, electric contact oil level indicator 1 moves, automatically close frequency conversion gasoline pump 7 and add solenoid 6 by control module, the last fuel outlet valve 4 of manual-lock electric power oil-filled mutual inductor 2 and the delivery valve 9 of oil tank 10, the draining valve 11 of opening on three connecting pipes 13 drains after the oil in pipeline, repairing end-of-job.
In the present invention; this electric power oil-filled mutual inductor on-line intelligence recharging oil device is due to the namely protective arrangement for limiting output voltage of pressure sensor 5(having adopted with pressure limiting control); therefore can also in repairing process, in the situation that occurring that pressure anomaly raises, automatically close frequency conversion gasoline pump 7 and add solenoid 6; after staff searches reason and handles well; work on again, guaranteed that superpressure danger does not occur repairing process.
It is same as the prior art that the present embodiment is not stated part, and the foregoing is only preferred embodiment of the present invention, and all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (4)
1. an electric power oil-filled mutual inductor on-line intelligence recharging oil device, it is characterized in that: include the oil tank with delivery valve, frequency conversion gasoline pump, three connecting pipes and repairing connecting leg, the delivery valve of described oil tank connects the import of frequency conversion gasoline pump, the oil inlet end of described frequency conversion gasoline pump outlet connecting tee connecting leg, on described three connecting pipes, the pressure sensor with pressure limiting control is installed, the oil outlet end of described three connecting pipes is provided with and adds solenoid, the described solenoid that adds is connected with the fuel outlet valve of electric power oil-filled mutual inductor by repairing connecting leg, electric contact oil level indicator for detection of oil level is installed on described electric power oil-filled mutual inductor, on the oil extraction end of described three connecting pipes, draining valve is installed, described frequency conversion gasoline pump, pressure sensor, add solenoid and electric contact oil level indicator is all electrically connected and control module, described control module receives the signal of pressure sensor and electric contact oil level indicator and controls frequency conversion gasoline pump and the action that adds solenoid.
2. electric power oil-filled mutual inductor on-line intelligence recharging oil device according to claim 1, is characterized in that: described control module comprises high oil level automatic control circuit, pressure limiting automatic control circuit and pressure reduction automatic frequency-conversion control circuit.
3. electric power oil-filled mutual inductor on-line intelligence recharging oil device according to claim 1 and 2, is characterized in that: described control module is PLC or single-chip microcomputer.
4. an electric power oil-filled mutual inductor on-line intelligence oil supplement method, it is characterized in that: adopt the electric power oil-filled mutual inductor on-line intelligence recharging oil device as described in any one in claims 1 to 3, while starting repairing, on the fuel outlet valve of first turns on power oil-filled mutual inductor bottom and three connecting pipes, add solenoid, unscrew the air relief cock at frequency conversion gasoline pump top, three connecting pipes and frequency conversion gasoline pump are carried out to exhaust oiling, start when fuel-displaced when air relief cock air drains, screw air relief cock, exhaust oiling finishes; Open again delivery valve and the frequency conversion gasoline pump of oil tank, to the repairing of releiving of electric power oil-filled mutual inductor, pressure sensor by electric power oil-filled mutual inductor internal pressure value sensing to control module, by the frequency of control module control frequency conversion gasoline pump to guarantee to releive all the time repairing, in the time that specified oil level is arrived in repairing, the action of electric contact oil level indicator, is automatically closed frequency conversion gasoline pump and is added solenoid by control module; Finally close the fuel outlet valve of electric power oil-filled mutual inductor and the delivery valve of oil tank, the draining valve of opening on three connecting pipes drains after the oil in pipeline, repairing end-of-job.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410072923.8A CN103824680A (en) | 2014-03-03 | 2014-03-03 | On-line intelligent oil recharging device and method for electric oil-charged transformer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410072923.8A CN103824680A (en) | 2014-03-03 | 2014-03-03 | On-line intelligent oil recharging device and method for electric oil-charged transformer |
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| CN103824680A true CN103824680A (en) | 2014-05-28 |
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| CN201410072923.8A Pending CN103824680A (en) | 2014-03-03 | 2014-03-03 | On-line intelligent oil recharging device and method for electric oil-charged transformer |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835628A (en) * | 2015-04-27 | 2015-08-12 | 国家电网公司 | Electrical high voltage oil-filled mutual inductor leakage blocking device using sealing cover and application method thereof |
| CN105547572A (en) * | 2016-01-18 | 2016-05-04 | 成都佳信电气工程技术公司 | On-line pressure monitoring and automatic quantitative oil-taking/supplementing device for power oil shortage equipment |
| CN108693223A (en) * | 2017-04-06 | 2018-10-23 | 北京至感传感器技术研究院有限公司 | The on-line monitoring method and system of active sulfur in liquid oil |
| CN110459384A (en) * | 2019-09-11 | 2019-11-15 | 国网福建省电力有限公司检修分公司 | Capacitance type potential transformer electromagnetic unit takes oil and recharging oil device and working method |
| CN110534308A (en) * | 2019-10-10 | 2019-12-03 | 保定天威保变电气股份有限公司 | A kind of converter power transformer switch takes oil and on-line intelligence automatic oil recharging device and method |
| CN111261385A (en) * | 2020-04-21 | 2020-06-09 | 温州市塔星电子科技有限公司 | Protective oil conservator for transformer |
| CN112228775A (en) * | 2020-10-23 | 2021-01-15 | 成都佳信电气工程技术有限公司 | Electrified quantitative oil supplementing device for power oil-less equipment and use method thereof |
| CN113790399A (en) * | 2021-09-15 | 2021-12-14 | 广东电网有限责任公司 | Automatic oil pressure regulating device for transformer |
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| EP1085635A2 (en) * | 1999-09-17 | 2001-03-21 | General Electric Company | Fluid-filled electrical equipment intelligent analysis system and method |
| US20040158428A1 (en) * | 2003-02-06 | 2004-08-12 | Byrd Douglas S. | Intelligent auxiliary cooling system |
| CN103440962A (en) * | 2013-08-01 | 2013-12-11 | 国家电网公司 | Intelligent on-line oil filling vehicle for transformer and oil filling method |
| CN203423031U (en) * | 2013-08-01 | 2014-02-05 | 国家电网公司 | On-line intelligent oil supplementation vehicle for transformer |
| CN203423032U (en) * | 2013-08-01 | 2014-02-05 | 国家电网公司 | On-line intelligent oil supplementation device for transformer |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1085635A2 (en) * | 1999-09-17 | 2001-03-21 | General Electric Company | Fluid-filled electrical equipment intelligent analysis system and method |
| US20040158428A1 (en) * | 2003-02-06 | 2004-08-12 | Byrd Douglas S. | Intelligent auxiliary cooling system |
| CN103440962A (en) * | 2013-08-01 | 2013-12-11 | 国家电网公司 | Intelligent on-line oil filling vehicle for transformer and oil filling method |
| CN203423031U (en) * | 2013-08-01 | 2014-02-05 | 国家电网公司 | On-line intelligent oil supplementation vehicle for transformer |
| CN203423032U (en) * | 2013-08-01 | 2014-02-05 | 国家电网公司 | On-line intelligent oil supplementation device for transformer |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835628A (en) * | 2015-04-27 | 2015-08-12 | 国家电网公司 | Electrical high voltage oil-filled mutual inductor leakage blocking device using sealing cover and application method thereof |
| CN105547572A (en) * | 2016-01-18 | 2016-05-04 | 成都佳信电气工程技术公司 | On-line pressure monitoring and automatic quantitative oil-taking/supplementing device for power oil shortage equipment |
| CN105547572B (en) * | 2016-01-18 | 2018-06-12 | 成都佳信电气工程技术公司 | The few oily equipment on-line pressure monitoring of electric power and automatic ration take/recharging oil device |
| CN108693223A (en) * | 2017-04-06 | 2018-10-23 | 北京至感传感器技术研究院有限公司 | The on-line monitoring method and system of active sulfur in liquid oil |
| CN110459384A (en) * | 2019-09-11 | 2019-11-15 | 国网福建省电力有限公司检修分公司 | Capacitance type potential transformer electromagnetic unit takes oil and recharging oil device and working method |
| CN110534308A (en) * | 2019-10-10 | 2019-12-03 | 保定天威保变电气股份有限公司 | A kind of converter power transformer switch takes oil and on-line intelligence automatic oil recharging device and method |
| CN111261385A (en) * | 2020-04-21 | 2020-06-09 | 温州市塔星电子科技有限公司 | Protective oil conservator for transformer |
| CN112228775A (en) * | 2020-10-23 | 2021-01-15 | 成都佳信电气工程技术有限公司 | Electrified quantitative oil supplementing device for power oil-less equipment and use method thereof |
| CN113790399A (en) * | 2021-09-15 | 2021-12-14 | 广东电网有限责任公司 | Automatic oil pressure regulating device for transformer |
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Application publication date: 20140528 |