CN205210247U - Three -dimensional alignment sensor is put in high tension cable office - Google Patents
Three -dimensional alignment sensor is put in high tension cable office Download PDFInfo
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- CN205210247U CN205210247U CN201521058893.1U CN201521058893U CN205210247U CN 205210247 U CN205210247 U CN 205210247U CN 201521058893 U CN201521058893 U CN 201521058893U CN 205210247 U CN205210247 U CN 205210247U
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Abstract
The utility model relates to a three -dimensional alignment sensor is put in high tension cable office belongs to high -voltage electrical equipment trouble location technical field. Technical scheme is: contain silicon rubber clad material (1), electric pulse receiving coil (2), metallic shield focus cover (3), pulse ultrasonic receiver (4), receiver signal output interface (5), the opening of metallic shield focus cover (3) front end is tubaeform structure, installation electric pulse receiving coil (2) in the opening, leave the gap between electric pulse receiving coil and the metallic shield focus cover inner wall, in metallic shield focus cover (3) rear side, embedded installation pulse ultrasonic receiver, pulse ultrasonic receiver receives the directional dead ahead of terminal surface. The utility model discloses guaranteeing detectivity, increasing and detect directive property, can receive electromagnetic wave signal and ultrasonic signal ware simultaneously, amplitude that not only can the passing signal determines the order of severity that discharges of equipment, and fault point position is confirmed to accessible electroacoustic location upon delta -T's method moreover.
Description
Technical field
The utility model relates to a kind of high-tension cable office and puts three-dimensional localization sensor, for Partial Discharge Detection, live detection, the localization of fault of high-tension cable and annex, adopt electromagnetic wave and ultrasonic combined detection, realize the detection of local discharge signal to high-tension cable and annex and the three-dimensional fix of trouble spot, belong to high voltage electric equipment Fault-Locating Test field.
Background technology
Due to the insulation harm in mass defect or operational process, shelf depreciation can be there is at these positions, accelerate insulation degradation, form fault in high-tension cable.Cable operationally cannot detect by conventional partial discharge test modes such as IEC60270, and the key of process problems how to find out discharge position quickly and accurately, therefore the mode adopting contactless live detection, location more.Common partial discharge location sensor many employings supersonic sounding pattern, lower to the sensitivity of discharge signal, faint discharge signal cannot be detected; And minority adopts electricity, the sensor of sound integral type can detect discharge signal, but directive property is poor, can only determine an approximate range, and directive property is poor, and positioning precision is low, causes maintenance difficulty to strengthen.
Utility model content
The utility model object is to provide a kind of high-tension cable office and puts three-dimensional localization sensor, detection sensitivity can be ensured, increase again and detect directive property, electromagnetic wave signal and ultrasonic signal device can be received simultaneously, accurately to find out discharge position by the method for the acoustic-electric time difference on three dimensions, solve the problems referred to above that background technology exists.
The technical solution of the utility model is:
Three-dimensional localization sensor is put in a kind of high-tension cable office, comprise Silicone Rubber for Inhibition, electric pulse receiving coil, metallic shield focus mask, impulse ultrasound receiver, receiver signal output interface, the opening flare structure of metallic shield focus mask front end, installs electric pulse receiving coil in opening; Gap is left between electric pulse receiving coil and metallic shield focus mask inwall, this gap can shield the undesired signal of side, make the signal in electric pulse receiving coil directive reception dead ahead, also can avoid because electric pulse receiving coil and metallic shield focus mask hypotelorism affect Signal reception, ensure that sensor has higher sensitivity to electric impulse signal; In on rear side of metallic shield focus mask, installation by adhering impulse ultrasound receiver; Ensure during installation that impulse ultrasound receiver receives end face directed straight ahead, electric pulse receiving coil, metallic shield focus mask and impulse ultrasound receiver are outside by Silicone Rubber for Inhibition integral coating.
Metallic shield focus mask opening adopts flared structure, can collect signal and strengthen detection sensitivity, Signal reception can also be made to have very strong directivity, be conducive to accurately finding position of failure point.Positioning precision, up to 20mm, accurately can locate the particular location of high-tension cable and annex defect.The utility model has very high sensitivity and positioning precision, is particularly suitable for the Partial Discharge Detection of high-tension cable and annex, live detection, location.
Electric pulse receiving coil, metallic shield focus mask and impulse ultrasound receiver are outside to be avoided directly contacting with detected equipment high pressure position by Silicone Rubber for Inhibition integral coating, ensures overall dielectric strength.
The utility model can receive the electromagnetic wave and ultrasonic signal that the inner shelf depreciation of high-tension apparatus produces simultaneously, and by the method localization of faults position of electroacoustic location; Electromagnetic range of receiving: 100k-1.5GHz.Ultrasonic range of receiving: 10k-150k.
The utility model good effect: ensure detection sensitivity, increase and detect directive property, electromagnetic wave signal and ultrasonic signal device can be received simultaneously, the discharge severity of judgment device not only can be carried out by the amplitude of signal, and by the method localization of faults position of electroacoustic positioning using TDOA, detection sensitivity is high, and positioning precision is high.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model axle side schematic diagram;
In figure: Silicone Rubber for Inhibition 1, electric pulse receiving coil 2, metallic shield focus mask 3, impulse ultrasound receiver 4, receiver signal output interface 5.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is described further.
Three-dimensional localization sensor is put in a kind of high-tension cable office, comprise Silicone Rubber for Inhibition 1, electric pulse receiving coil 2, metallic shield focus mask 3, impulse ultrasound receiver 4 and receiver signal output interface 5, the opening flare structure of metallic shield focus mask 3 front end, installs electric pulse receiving coil 2 in opening; Gap is left between electric pulse receiving coil 2 and metallic shield focus mask 3 inwall, this gap can shield the undesired signal of side, make the signal in electric pulse receiving coil 2 directive reception dead ahead, also can avoid, because electric pulse receiving coil 2 and metallic shield focus mask 3 hypotelorism affect Signal reception, ensureing that sensor has higher sensitivity to electric impulse signal; In on rear side of metallic shield focus mask 3, installation by adhering impulse ultrasound receiver 4; Ensure during installation that impulse ultrasound receiver 4 receives end face directed straight ahead, electric pulse receiving coil 2, metallic shield focus mask 3 and impulse ultrasound receiver 4 outside are by Silicone Rubber for Inhibition 1 integral coating.
Sensor monnolithic case is tubaeform, and the opening of metallic shield focus mask 3 front end is cone barrel, interior installation electric pulse receiving coil 2, and the number of turn is 3-5 circle, and electric pulse receiving coil 2 is formed by the copper wire winding of wire diameter 0.3-0.5, and the number of turn is 3-5 circle.The distance of 1mm is left between electric pulse receiving coil 2 and metallic shield focus mask 3 inwall, this distance can shield the undesired signal of side, make the signal in electric pulse receiving coil 2 directive reception dead ahead, can also avoid, because electric pulse receiving coil 2 and metallic shield focus mask 3 hypotelorism affect Signal reception, ensureing that sensor has higher sensitivity to electric impulse signal.
Open diameter 10mm circular hole on rear side of metallic shield focus mask 3, at circular hole built-in type, impulse ultrasound receiver 4 is installed; Ensure during installation that impulse ultrasound receiver 4 receives end face directed straight ahead.Sensor front end opening is tapered, can collect ultrasonic signal, strengthens detection sensitivity and the detection directive property of sensor.
The Partial discharge signal that electric pulse receiving coil 2 and impulse ultrasound receiver 4 receive puts checkout equipment through sensor signal output interface 5 from the sensor rear end extraction office of being connected to.
The Partial discharge signal that electric pulse receiving coil 2 and impulse ultrasound receiver 4 receive puts checkout equipment through sensor signal output interface 5 from the sensor rear end extraction office of being connected to.Sensor external, by Silicone Rubber for Inhibition 1 integral coating, avoids sensor conductor part directly to contact with test product high pressure position, and ensure that overall dielectric strength.
Claims (3)
1. three-dimensional localization sensor is put in a high-tension cable office, it is characterized in that: comprise Silicone Rubber for Inhibition (1), electric pulse receiving coil (2), metallic shield focus mask (3), impulse ultrasound receiver (4), receiver signal output interface (5), the opening flare structure of metallic shield focus mask (3) front end, installs electric pulse receiving coil (2) in opening; Gap is left between electric pulse receiving coil (2) and metallic shield focus mask (3) inwall, in metallic shield focus mask (3) rear side, installation by adhering impulse ultrasound receiver (4); It is directed straight ahead that impulse ultrasound receiver (4) receives end face, and electric pulse receiving coil (2), metallic shield focus mask (3) and impulse ultrasound receiver (4) are outside by Silicone Rubber for Inhibition (1) integral coating.
2. three-dimensional localization sensor is put in a kind of high-tension cable office according to claim 1, it is characterized in that: sensor monnolithic case is tubaeform, interior installation electric pulse receiving coil (2), the number of turn is 3-5 circle, electric pulse receiving coil (2) is formed by the copper wire winding of wire diameter 0.3-0.5, and the number of turn is 3-5 circle.
3. three-dimensional localization sensor is put in a kind of high-tension cable office according to claim 1 and 2, it is characterized in that: metallic shield focus mask (3) rear side opens diameter 10mm circular hole, installs impulse ultrasound receiver (4) at circular hole built-in type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521058893.1U CN205210247U (en) | 2015-12-18 | 2015-12-18 | Three -dimensional alignment sensor is put in high tension cable office |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521058893.1U CN205210247U (en) | 2015-12-18 | 2015-12-18 | Three -dimensional alignment sensor is put in high tension cable office |
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| Publication Number | Publication Date |
|---|---|
| CN205210247U true CN205210247U (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521058893.1U Active CN205210247U (en) | 2015-12-18 | 2015-12-18 | Three -dimensional alignment sensor is put in high tension cable office |
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| CN (1) | CN205210247U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111077416A (en) * | 2019-12-10 | 2020-04-28 | 云南电网有限责任公司曲靖供电局 | Low-cost ultra-wideband discharge signal detection device and detection method thereof |
| CN116381292A (en) * | 2023-06-05 | 2023-07-04 | 广东电网有限责任公司珠海供电局 | Single-core cable characteristic impedance measuring clamp, measuring system and measuring method |
-
2015
- 2015-12-18 CN CN201521058893.1U patent/CN205210247U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111077416A (en) * | 2019-12-10 | 2020-04-28 | 云南电网有限责任公司曲靖供电局 | Low-cost ultra-wideband discharge signal detection device and detection method thereof |
| CN116381292A (en) * | 2023-06-05 | 2023-07-04 | 广东电网有限责任公司珠海供电局 | Single-core cable characteristic impedance measuring clamp, measuring system and measuring method |
| CN116381292B (en) * | 2023-06-05 | 2023-08-01 | 广东电网有限责任公司珠海供电局 | Single-core cable characteristic impedance measuring clamp, measuring system and measuring method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |