CN204315338U - A kind of main transformer on-load switch on-line intelligence recharging oil device - Google Patents
A kind of main transformer on-load switch on-line intelligence recharging oil device Download PDFInfo
- Publication number
- CN204315338U CN204315338U CN201520004233.9U CN201520004233U CN204315338U CN 204315338 U CN204315338 U CN 204315338U CN 201520004233 U CN201520004233 U CN 201520004233U CN 204315338 U CN204315338 U CN 204315338U
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- China
- Prior art keywords
- main transformer
- load switch
- oil
- frequency conversion
- connecting pipes
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 230000001681 protective effect Effects 0.000 claims abstract description 16
- 230000037452 priming Effects 0.000 claims abstract description 9
- 238000000605 extraction Methods 0.000 claims abstract description 4
- 230000008676 import Effects 0.000 claims abstract description 4
- 230000009467 reduction Effects 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000000446 fuel Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Abstract
The utility model relates to a kind of main transformer on-load switch on-line intelligence recharging oil device, main transformer on-load switch priming valve is connected to by oiling connecting leg and adds solenoid, the other end adding solenoid is connected to the oil outlet end of three connecting pipes, the oil inlet end of three connecting pipes is connected to frequency conversion oiling delivery side of pump, and the import of frequency conversion gasoline pump is connected with the delivery valve of oil tank; The oil extraction end of three connecting pipes is connected with draining valve, three connecting pipes is provided with protective arrangement for limiting output voltage and control module; Main transformer on-load switch conservator is provided with electric contact oil level indicator; Frequency conversion gasoline pump, protective arrangement for limiting output voltage, add solenoid and electric contact oil level indicator is all electrically connected at control module; Frequency conversion gasoline pump top is provided with air relief cock, in order to release gas and dead oil before repairing work is carried out.The utility model just can work on the ground, without the need to having a power failure, without the need to ascending a height, time saving and energy saving and safe and reliable, has the advantage can not intending ratio compared with traditional repairing mode.
Description
Technical field
The utility model relates to a kind of recharging oil device, particularly a kind of main transformer on-load switch on-line intelligence recharging oil device and using method.
Background technology
Operating main transformer on-load switch, when its oil level is reduced to a certain degree, can make moist, the fault such as electric discharge, particularly at poor sealing, more easily breaks down when moisture invades, therefore should carry out repairing in time when main transformer on-load switch oil level is not enough.Main transformer on-load switch tradition repairing mode; because oil compensation pressure is uncontrollable; mend in refueling process the phenomenons such as oil stream impact, turbulent flow can occur; light then the malfunction of loaded switch Buchholz relay protective device may be caused, heavy then cause loaded switch fault, cause the catastrophe failure affecting main transformer safe operation; therefore traditional main transformer on-load switch repairing mode must have a power failure; after turning inspecting state, just can carry out, whole process wastes time and energy.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of main transformer on-load switch on-line intelligence recharging oil device, and the utility model just can work on the ground, without the need to having a power failure, without the need to ascending a height, time saving and energy saving and safe and reliable.
The utility model adopts following scheme to realize: a kind of main transformer on-load switch on-line intelligence recharging oil device, comprises a main transformer on-load switch pressure regulation cylinder, and described main transformer on-load switch pressure regulation cylinder is connected with a main transformer on-load switch conservator by a Buchholz relay; Described main transformer on-load switch pressure regulation cylinder includes a main transformer on-load switch priming valve, described main transformer on-load switch priming valve is connected to by an oiling connecting leg one end that adds solenoid, the described other end adding solenoid is connected to the oil outlet end of one or three connecting pipes, the oil inlet end of described three connecting pipes is connected to a frequency conversion oiling delivery side of pump, and the import of described frequency conversion gasoline pump is connected with the delivery valve of an oil tank; The oil extraction end of three described connecting pipes is connected with a draining valve, three described connecting pipes is provided with a protective arrangement for limiting output voltage and a control module; Described main transformer on-load switch conservator is provided with an electric contact oil level indicator; Described frequency conversion gasoline pump, protective arrangement for limiting output voltage, add solenoid and electric contact oil level indicator is all electrically connected at described control module; Described frequency conversion gasoline pump top is provided with an air relief cock, in order to release gas and dead oil before repairing work is carried out.
Further, described protective arrangement for limiting output voltage is the pressure sensor of a band limited-voltage control.
Further; described control module comprises a CPU and coupled one high oil level automatic control circuit, a pressure limiting automatic control circuit and a pressure reduction automatic frequency-conversion control circuit, in order to receive the signal of described protective arrangement for limiting output voltage and described electric contact oil level indicator and to control described frequency conversion gasoline pump and the described action adding solenoid.
Further, described CPU is PLC or single-chip microcomputer.
Preferably, described main transformer on-load switch conservator also includes a dehydrating breather, described main transformer on-load switch pressure regulation cylinder also comprises a main transformer on-load switch fuel outlet valve and a main transformer on-load switch regulator, inside described main transformer on-load switch pressure regulation cylinder, transformer oil is housed.
Preferably, when carrying out repairing, described pressure sensor can by the oil pressure data real-time sensing of described main transformer on-load switch pressure regulation cylinder inside in the control module of designed type selecting, by the pressure reduction control program of this control module according to design, control the frequency of described frequency conversion gasoline pump, automatic adjustment frequency conversion gasoline pump is all the time to carry out releiving repairing a little more than the pressure of main transformer on-load switch pressure regulation cylinder internal oil pressure, when repairing is to nominal oil level, automatically controlled close frequency conversion gasoline pump and add solenoid, repairing end-of-job by electric contact oil level indicator.
Especially, the utility model can also automatically be closed gasoline pump and add solenoid in repairing process when occurring that pressure anomaly raises, after staff searches reason and handles well, work on again, as loaded switch oil level is too high, release unnecessary oil to normal oil level by loaded switch fuel outlet valve.
The utility model only needs staff to carry out oiling work at main transformer on-load switch priming valve place connection one oiling connecting leg to the solenoid place that adds on this device three connecting pipe, without the need to having a power failure, and overcome conventional gasoline pump add oil pressure uncontrollable and produce oil stream impact, splash, turbulent flow, the unsafe condition that the inside of main transformer on-load switch in operation produces discharge fault can be caused, thus achieve main transformer on-load switch and can carry out safe, efficient, economic repairing work in charging operation.
Accompanying drawing explanation
Fig. 1 is device connection diagram of the present invention.
Fig. 2 is that device of the present invention carries out repairing work to operating diagram during nominal oil level.
Fig. 3 is Automatic Control Theory block diagram of the present invention.
Fig. 4 is high oil level point control loop diagram of the present invention.
Fig. 5 is high oil level point control main wiring diagram of the present invention.
Fig. 6 is pressure of the present invention restriction control drawing.
Fig. 7 is that pressure of the present invention restriction controls main wiring diagram.
Fig. 8 is pressure reduction control drawing of the present invention.
Fig. 9 is pressure reduction variable frequency control main wiring diagram of the present invention.
primary clustering symbol description]
in figure:1 is frequency conversion gasoline pump; 2 is gasoline pump air relief cock; 3 is three connecting pipes, and 4 is draining valve, and 5 is protective arrangement for limiting output voltage; 6 for adding solenoid; 7 is main transformer on-load switch pressure regulation cylinder, and 8 is electric contact oil level indicator, and 9 is main transformer on-load switch conservator; 10 is main transformer on-load switch priming valve; 11 is main transformer on-load switch regulator, and 12 is transformer oil, and 13 is main transformer on-load switch fuel outlet valve; 14 is Buchholz relay; 15 is oil tank, and 16 is oil tank delivery valve, and 17 is oil tank hand-hole; 18 for refueling connecting leg, and 19 is dehydrating breather.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
As shown in Figure 1, Figure 2 with shown in Fig. 3, present embodiments provide a kind of main transformer on-load switch on-line intelligence recharging oil device, comprise a main transformer on-load switch pressure regulation cylinder 7, described main transformer on-load switch pressure regulation cylinder 7 is connected with a main transformer on-load switch conservator 9 by a Buchholz relay 14; Described main transformer on-load switch pressure regulation cylinder 7 includes a main transformer on-load switch priming valve 10, described main transformer on-load switch priming valve 10 is connected to by an oiling connecting leg 18 one end that adds solenoid 6, the described other end adding solenoid 6 is connected to the oil outlet end of one or three connecting pipes 3, the oil inlet end of described three connecting pipes 3 is connected to the outlet of a frequency conversion gasoline pump 1, and the import of described frequency conversion gasoline pump 1 is connected with the delivery valve 16 of an oil tank 15; The oil extraction end of three described connecting pipes 3 is connected with a draining valve 4, three described connecting pipes 3 is provided with protective arrangement for limiting output voltage 5 and a control module; Described main transformer on-load switch conservator 9 is provided with an electric contact oil level indicator 8; Described frequency conversion gasoline pump 1, protective arrangement for limiting output voltage 5, add solenoid 6 and electric contact oil level indicator 8 is all electrically connected at described control module; Described frequency conversion gasoline pump 1 top is provided with an air relief cock 2, in order to release gas and dead oil before repairing work is carried out.
In the present embodiment, described protective arrangement for limiting output voltage 5 is the pressure sensor of a band limited-voltage control.
In the present embodiment; described control module comprises a CPU and coupled one high oil level automatic control circuit (as shown in Figure 4, Figure 5), a pressure limiting automatic control circuit (as shown in Figure 6, Figure 7) and a pressure reduction automatic frequency-conversion control circuit (as shown in Figure 8, Figure 9), in order to receive the signal of described protective arrangement for limiting output voltage and described electric contact oil level indicator and to control described frequency conversion gasoline pump and the described action adding solenoid.
Further, in the present embodiment, described CPU is PLC or single-chip microcomputer.
Preferably, in the present embodiment, described main transformer on-load switch conservator 9 also includes a dehydrating breather 19, described main transformer on-load switch pressure regulation cylinder 7 also comprises main transformer on-load switch fuel outlet valve 13 and a main transformer on-load switch regulator 11, inside described main transformer on-load switch pressure regulation cylinder 7, transformer oil is housed.
Preferably, in the present embodiment, when carrying out repairing, described pressure sensor can by the oil pressure data real-time sensing of described main transformer on-load switch pressure regulation cylinder 7 inside in the control module of designed type selecting, by the pressure reduction control program of this control module according to design, control the frequency of described frequency conversion gasoline pump 1, automatic adjustment frequency conversion gasoline pump 1 is all the time to carry out releiving repairing a little more than the pressure of main transformer on-load switch pressure regulation cylinder 7 internal oil pressure, when repairing is to nominal oil level, automatically controlled close frequency conversion gasoline pump 1 and add solenoid 6 by electric contact oil level indicator 8, repairing end-of-job.
Especially, the utility model can also automatically be closed frequency conversion gasoline pump 1 and add solenoid 6 in repairing process when occurring that pressure anomaly raises, after staff searches reason and handles well, work on again, as loaded switch oil level is too high, release unnecessary oil to normal oil level by loaded switch fuel outlet valve.
In sum, the utility model just can carry out the deficiency of work after overcoming and needing turning inspecting state by having a power failure until the main transformer on-load switch of repairing in the middle of prior art, traditional repairing mode of main transformer on-load switch, due in refueling process, pressure and flow uncontrollable, oil stream turbulent flow can be caused to impact, as the catastrophe failure that live line oil make-up will cause main transformer on-load switch to discharge, therefore traditional repairing mode must have a power failure and just can carry out, and oiling needs oil compensation pressure large after terminating, the air that system easily fills band bleeds off, whole process needs many people ascend operation, must have a power failure and just can carry out repairing work, time and effort consuming.This device just can work on the ground, and without the need to having a power failure, without the need to ascending a height, compared with traditional repairing mode, there is the advantage can not intending ratio.
It is worth mentioning that, to these are only in the utility model embodiment a preferably embodiment.But the utility model is not limited to above-mentioned embodiment, all any equalizations done by the utility model scheme change and modify, and when the function produced does not exceed the scope of this programme, all belong to protection range of the present utility model.
Claims (5)
1. a main transformer on-load switch on-line intelligence recharging oil device, comprises a main transformer on-load switch pressure regulation cylinder, and described main transformer on-load switch pressure regulation cylinder is connected with a main transformer on-load switch conservator by a Buchholz relay; It is characterized in that: described main transformer on-load switch pressure regulation cylinder includes a main transformer on-load switch priming valve, described main transformer on-load switch priming valve is connected to by an oiling connecting leg one end that adds solenoid, the described other end adding solenoid is connected to the oil outlet end of one or three connecting pipes, the oil inlet end of described three connecting pipes is connected to a frequency conversion oiling delivery side of pump, and the import of described frequency conversion gasoline pump is connected with the delivery valve of an oil tank; The oil extraction end of three described connecting pipes is connected with a draining valve, three described connecting pipes is provided with a protective arrangement for limiting output voltage and a control module; Described main transformer on-load switch conservator is provided with an electric contact oil level indicator; Described frequency conversion gasoline pump, protective arrangement for limiting output voltage, add solenoid and electric contact oil level indicator is all electrically connected at described control module; Described frequency conversion gasoline pump top is provided with an air relief cock, in order to release gas and dead oil before repairing work is carried out.
2. a kind of main transformer on-load switch on-line intelligence recharging oil device according to claim 1, is characterized in that: described protective arrangement for limiting output voltage is the pressure sensor of a band limited-voltage control.
3. a kind of main transformer on-load switch on-line intelligence recharging oil device according to claim 1; it is characterized in that: described control module comprises a CPU and coupled one high oil level automatic control circuit, a pressure limiting automatic control circuit and a pressure reduction automatic frequency-conversion control circuit, in order to receive the signal of described protective arrangement for limiting output voltage and described electric contact oil level indicator and to control described frequency conversion gasoline pump and the described action adding solenoid.
4. a kind of main transformer on-load switch on-line intelligence recharging oil device according to claim 3, is characterized in that: described CPU is PLC.
5. a kind of main transformer on-load switch on-line intelligence recharging oil device according to claim 3, is characterized in that: described CPU is single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520004233.9U CN204315338U (en) | 2015-01-06 | 2015-01-06 | A kind of main transformer on-load switch on-line intelligence recharging oil device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520004233.9U CN204315338U (en) | 2015-01-06 | 2015-01-06 | A kind of main transformer on-load switch on-line intelligence recharging oil device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204315338U true CN204315338U (en) | 2015-05-06 |
Family
ID=53137641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520004233.9U Expired - Fee Related CN204315338U (en) | 2015-01-06 | 2015-01-06 | A kind of main transformer on-load switch on-line intelligence recharging oil device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204315338U (en) |
-
2015
- 2015-01-06 CN CN201520004233.9U patent/CN204315338U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20220106 |