CN201926738U - Device for monitoring insulating properties of high-voltage switch electric appliances - Google Patents
Device for monitoring insulating properties of high-voltage switch electric appliances Download PDFInfo
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- CN201926738U CN201926738U CN2010205688918U CN201020568891U CN201926738U CN 201926738 U CN201926738 U CN 201926738U CN 2010205688918 U CN2010205688918 U CN 2010205688918U CN 201020568891 U CN201020568891 U CN 201020568891U CN 201926738 U CN201926738 U CN 201926738U
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- 238000012544 monitoring process Methods 0.000 title abstract 2
- 238000005070 sampling Methods 0.000 claims abstract description 95
- 238000009413 insulation Methods 0.000 claims abstract description 25
- 238000012806 monitoring device Methods 0.000 claims abstract description 14
- 238000012545 processing Methods 0.000 claims description 28
- 239000012212 insulator Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000032683 aging Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Abstract
The utility model relates to a device for monitoring insulating properties of high-voltage switch electric appliances, and comprises a sampling resistor which is arranged between insulation shells of high-voltage switch electric appliances and the earth, and a sample process device which is connected with the sampling resistor. The sample process device includes a power supply device used for supplying power for the sample process device and a transmitter used for transmitting signals. The monitoring device has the advantages of being able to monitor the insulating properties of high-voltage switch electric appliances timely, and saving maintenance cost.
Description
Technical field
The utility model belongs to high-voltage switch electric appliance structure-design technique field, is specifically related to a kind of high-voltage switch electric appliance insulating property monitoring device.
Background technology
The vacuum high-pressure isolating switch is to be used for closing opening and disconnecting normal circuit. faulty circuit or be used for insulating power supply, realize the high-voltage electrical equipment of safety ground, the insulation against ground performance of high-voltage switch electric appliance housing is the important technology index of high-voltage switch electric appliance, but increase along with service time, the insulating property of high-voltage switch electric appliance housing can reduce, be reduced to a certain degree, just must change this high-voltage switch electric appliance.The insulating property of timely monitor high-voltage switch electric appliance how are judged the ageing state of high-voltage switch electric appliance shell, accurately effectively judge the scope of maintenance, are that the technical barrier that solves is badly in need of in industry field.
The utility model content
First purpose of the present utility model provides a kind of high-voltage switch electric appliance insulating property monitoring device that can timely monitor high-voltage switch electric appliance housing insulating property.
The scheme that realizes first purpose of the utility model is: a kind of high-voltage switch electric appliance insulating property monitoring device comprises the sampling resistor and the sampling processing device that links to each other with this sampling resistor be located between high-voltage switch electric appliance insulation shell and the earth; Described sampling processing device is included as the supply unit of sampling processing device power supply and is used for transmitter.
In the such scheme; Described sampling processing device also comprises the bandpass filter that links to each other with this sampling resistor, the amplifier that links to each other with the output terminal of this bandpass filter, and the output terminal of described amplifier links to each other with transmitter; Described sampling resistor links to each other by the zones of different of a plurality of conductors with the high-voltage switch electric appliance insulation crust.
In the such scheme: described sampling processing device also comprises the intelligent peripheral application apparatus that links to each other with the output terminal of transmitter; The resistance value of described sampling resistor is preferably smaller or equal to 5 ohm smaller or equal to 10 ohm; Load current value is more than or equal to 300 amperes, is preferably more than to equal 380 amperes.
In the such scheme: described intelligent peripheral application apparatus is the instrument sampling application apparatus that is provided with alarm.
In the such scheme: the insulation shell of described high-voltage switch electric appliance is provided with anti-lightning strike insulator of pressure sensitive and the lightning conducter that is connected anti-lightning strike insulator and the earth, and an end of described sampling resistor is electrically connected with lightning conducter, and the other end is electrically connected with the earth.
The positive technique effect that the utlity model has:
(1) in the utility model, comprises the sampling resistor and the sampling processing device that links to each other with this sampling resistor be located between high-voltage switch electric appliance insulation shell and the earth; Described sampling processing device is included as the supply unit of sampling processing device power supply and is used for transmitter; Cause electric current when the high-voltage switch electric appliance insulator is struck by lightning, change in voltage after sampling processing device sampling, and exports the intelligent peripheral application apparatus to after through transmitter sampled signal being processed into standard signal by sampling resistor; When sample rate current also is the leakage current of insulation shell when surpassing preset value, can think that the insulating property of housing can not meet design requirement; Adopt the utility model can accurately learn the ageing state of high-voltage switch electric appliance insulation shell in good time, save the cost of overhaul.
(2) in the utility model, described sampling processing device comprises the bandpass filter that links to each other with this sampling resistor, the amplifier that links to each other with the output terminal of this bandpass filter, and the output terminal of described amplifier links to each other with transmitter; When sampling resistor flowed to the sampling processing device to sampled signal, signal earlier carried out filtering through bandpass filter wherein, selects required signal, amplifies for the transmitter transmission signals selected through amplifier installation; Thereby learn the accuracy of using signal through the signal of bandpass filter for the intelligence instrument sampling; Through amplifier, can carry out distortionless amplification to desired signal, can increase the explicitly of intelligence instrument sampling application system institute sampled signal; Can accurately, effectively analyze the insulation shell ageing state of isolating switch like this, improve overhaul efficiency.
(3) the utility model also comprises the intelligent peripheral application apparatus that links to each other with the output terminal of transmitter, promptly is provided with the instrument sampling application apparatus of alarm; After the signal of sampling amplifies through amplifier, convert insulation against ground resistance to normal voltage (0-5V) or normalized current (4-20MA) signal through transmitter again, the intellegent sampling application apparatus is gathered and is used this signal, when the signal that receives was outside the standard signal scope, the instrument sampling application apparatus that is provided with alarm will give the alarm; Can reduce artificial leakage situation like this, can overhaul timely, reduce, ensure social property and life safety because of the loss that fortuitous event brought.
(4) in the utility model, the resistance value of described sampling resistor is preferably smaller or equal to 5 ohm smaller or equal to 10 ohm; Thereby the current loss in the time of can reducing sampling, the validity and the accuracy of raising sampled signal.
(5) in the utility model, the insulation shell of described high-voltage switch electric appliance is provided with anti-lightning strike insulator of pressure sensitive and the lightning conducter that is connected anti-lightning strike insulator and the earth, and an end of described sampling resistor is electrically connected with lightning conducter, and the other end is electrically connected with the earth; Thereby can play effective lightning protection function, can sample to lightning conducter by the sampling resistor that links to each other with lightning conducter, because the general all more critical areas of pile warp high-voltage switch electric appliance of lightning conducter, can guarantee like this to sample accurately and validity, further, improve the accuracy and the reliability of sampling for subsequent analysis provides the efficiently sampling resource.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is the circuit structure block diagram of the high-voltage switch electric appliance insulating property monitoring device among the embodiment.
Embodiment
Below in conjunction with drawings and Examples the utility model is elaborated:
Fig. 1 is the circuit structure block diagram of the high-voltage switch electric appliance insulating property monitoring device among the embodiment, has shown a kind of embodiment of the present utility model.
The high-voltage switch electric appliance insulating property monitoring device of present embodiment is a kind of insulating property monitoring device that is used for high-pressure vacuum breaker, comprises the sampling resistor and the sampling processing device that links to each other with this sampling resistor be located between high-voltage switch electric appliance insulation shell and the earth; Described sampling processing device is included as the supply unit and the transmitter that is used for signal conveys of sampling processing device power supply.Described sampling processing device also comprises the bandpass filter that links to each other with this sampling resistor, the amplifier that links to each other with the output terminal of this bandpass filter, and the output terminal of described amplifier links to each other with transmitter.
In concrete practice, can be as required, transmitter can transmit signal to different external intelligent peripheral application apparatus, the preferred instrument sampling application apparatus that is provided with alarm that adopts.
The resistance value of described sampling resistor is smaller or equal to 10 ohm, further preferably smaller or equal to 5 ohm; Its load current value is more than or equal to 300 amperes, preferably more than or equal to 380 amperes.In the present embodiment, the resistance value of described sampling resistor is 4 ohm, and load current value is 400 amperes.
In order to improve the reliability of sampling, described sampling resistor preferably adopts by the zones of different of a plurality of conductors with the high-voltage switch electric appliance insulation crust and links to each other; In the present embodiment, the insulation shell of described high-voltage switch electric appliance is provided with anti-lightning strike insulator of pressure sensitive and the lightning conducter that is connected anti-lightning strike insulator and the earth, and an end of described sampling resistor is electrically connected with lightning conducter, and the other end is electrically connected with the earth.
The method of work of present embodiment is: by between the insulation shell of high-voltage switch electric appliance and the earth sampling resistor and the sampling processing device that links to each other with this resistance being set, described sampling processing device becomes the curtage conversion of signals of sampling resistor the curtage signal of standard and exports it to external equipment, thus the insulating property quality that external equipment is relatively judged the high-voltage switch electric appliance housing according to the curtage signal and the preset value of standard.
After the signal of sampling amplifies through amplifier, convert insulation against ground resistance to normal voltage (0-5V) or normalized current (4-20MA) signal through transmitter again, the intellegent sampling application apparatus is gathered and is used this signal, when the signal that receives was outside the standard signal scope, the instrument sampling application apparatus that is provided with alarm will give the alarm
The positive technique effect that present embodiment has:
(1) in the present embodiment, comprises the sampling resistor and the sampling processing device that links to each other with this sampling resistor be located between high-voltage switch electric appliance insulation shell and the earth; Described sampling processing device is included as the supply unit of sampling processing device power supply and is used for transmitter; Cause electric current when the high-voltage switch electric appliance insulator is struck by lightning, change in voltage after sampling processing device sampling, and exports the intelligent peripheral application apparatus to after through transmitter sampled signal being processed into standard signal by sampling resistor; When sample rate current also is the leakage current of insulation shell when surpassing preset value, can think that the insulating property of housing can not meet design requirement; Adopt present embodiment can accurately learn the ageing state of high-voltage switch electric appliance insulation shell in good time, save the cost of overhaul.
(2) in the present embodiment, described sampling processing device comprises the bandpass filter that links to each other with this sampling resistor, the amplifier that links to each other with the output terminal of this bandpass filter, and the output terminal of described amplifier links to each other with transmitter; When sampling resistor flowed to the sampling processing device to sampled signal, signal earlier carried out filtering through bandpass filter wherein, selects required signal, amplifies for the transmitter transmission signals selected through amplifier installation; Thereby learn the accuracy of using signal through the signal of bandpass filter for the intelligence instrument sampling; Through amplifier, can carry out distortionless amplification to desired signal, can increase the explicitly of intelligence instrument sampling application system institute sampled signal; Can accurately, effectively analyze the insulation shell ageing state of isolating switch like this, improve overhaul efficiency.
(3) present embodiment also comprises the intelligent peripheral application apparatus that links to each other with the output terminal of transmitter, promptly is provided with the instrument sampling application apparatus of alarm; After the signal of sampling amplifies through amplifier, convert insulation against ground resistance to normal voltage (0-5V) or normalized current (4-20MA) signal through transmitter again, the intellegent sampling application apparatus is gathered and is used this signal, when the signal that receives was outside the standard signal scope, the instrument sampling application apparatus that is provided with alarm will give the alarm; Can reduce artificial leakage situation like this, can overhaul timely, reduce, ensure social property and life safety because of the loss that fortuitous event brought.
(4) in the present embodiment, the resistance value of described sampling resistor is preferably smaller or equal to 5 ohm smaller or equal to 10 ohm; Thereby the current loss in the time of can reducing sampling, the validity and the accuracy of raising sampled signal.
(5) in the present embodiment, the insulation shell of described high-voltage switch electric appliance is provided with anti-lightning strike insulator of pressure sensitive and the lightning conducter that is connected anti-lightning strike insulator and the earth, and an end of described sampling resistor is electrically connected with lightning conducter, and the other end is electrically connected with the earth; Thereby can play effective lightning protection function, can sample to lightning conducter by the sampling resistor that links to each other with lightning conducter, because the general all more critical areas of pile warp high-voltage switch electric appliance of lightning conducter, can guarantee like this to sample accurately and validity, further, improve the accuracy and the reliability of sampling for subsequent analysis provides the efficiently sampling resource.
Obviously, the foregoing description only is for the utility model example clearly is described, and is not to be qualification to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection domain of the present utility model.
Claims (5)
1. high-voltage switch electric appliance insulating property monitoring device is characterized in that: comprise the sampling resistor and the sampling processing device that links to each other with this sampling resistor be located between high-voltage switch electric appliance insulation shell and the earth; Described sampling processing device is included as the supply unit and the transmitter that is used for signal conveys of sampling processing device power supply.
2. high-voltage switch electric appliance insulating property monitoring device according to claim 1, it is characterized in that: described sampling processing device also comprises the bandpass filter that links to each other with this sampling resistor, the amplifier that links to each other with the output terminal of this bandpass filter, and the output terminal of described amplifier links to each other with transmitter; Described sampling resistor links to each other by the zones of different of a plurality of conductors with the high-voltage switch electric appliance insulation crust.
3. high-voltage switch electric appliance insulating property monitoring device according to claim 2 is characterized in that: described sampling processing device also comprises the intelligent peripheral application apparatus that links to each other with the output terminal of transmitter; The resistance value of described sampling resistor is smaller or equal to 10 ohm, and load current value is more than or equal to 300 amperes.
4. high-voltage switch electric appliance insulating property monitoring device according to claim 3 is characterized in that: described intelligent peripheral application apparatus is the instrument sampling application apparatus that is provided with alarm; The resistance value of described sampling resistor is smaller or equal to 5 ohm, and load current value is more than or equal to 380 amperes.
5. high-voltage switch electric appliance insulating property monitoring device according to claim 1, it is characterized in that: the insulation shell of described high-voltage switch electric appliance is provided with anti-lightning strike insulator of pressure sensitive and the lightning conducter that is connected anti-lightning strike insulator and the earth, one end of described sampling resistor is electrically connected with lightning conducter, and the other end is electrically connected with the earth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205688918U CN201926738U (en) | 2010-10-19 | 2010-10-19 | Device for monitoring insulating properties of high-voltage switch electric appliances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205688918U CN201926738U (en) | 2010-10-19 | 2010-10-19 | Device for monitoring insulating properties of high-voltage switch electric appliances |
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| Publication Number | Publication Date |
|---|---|
| CN201926738U true CN201926738U (en) | 2011-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205688918U Expired - Fee Related CN201926738U (en) | 2010-10-19 | 2010-10-19 | Device for monitoring insulating properties of high-voltage switch electric appliances |
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| CN (1) | CN201926738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986168A (en) * | 2010-10-19 | 2011-03-16 | 郑文秀 | Insulating property monitoring device and method of high-voltage switching apparatus |
-
2010
- 2010-10-19 CN CN2010205688918U patent/CN201926738U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986168A (en) * | 2010-10-19 | 2011-03-16 | 郑文秀 | Insulating property monitoring device and method of high-voltage switching apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HONGXIU ELECTRIC CO., LTD. Free format text: FORMER OWNER: ZHENG WENXIU Effective date: 20121116 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121116 Address after: 325604, Zhenxing Road, Xinguang Industrial Zone, Yueqing, Zhejiang, Liushi 8, China Patentee after: Hongxiu Electric Co., Ltd. Address before: 325604, Zhenxing Road, Xinguang Industrial Zone, Yueqing, Zhejiang, Liushi 8, China Patentee before: Zheng Wenxiu |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20151019 |
|
| EXPY | Termination of patent right or utility model |