CN202502200U - Balancing method-based cable partial discharge measurement device - Google Patents
Balancing method-based cable partial discharge measurement device Download PDFInfo
- Publication number
- CN202502200U CN202502200U CN2012201121758U CN201220112175U CN202502200U CN 202502200 U CN202502200 U CN 202502200U CN 2012201121758 U CN2012201121758 U CN 2012201121758U CN 201220112175 U CN201220112175 U CN 201220112175U CN 202502200 U CN202502200 U CN 202502200U
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- metal foil
- foil electrode
- outer jacket
- partial discharge
- measurement
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Abstract
The utility model relates to a balancing method-based cable partial discharge measurement device, comprising a metal foil electrode, an insulation pad, an outer sheath, and a partial discharger measurement instrument. The outer sheath is sleeved on a cable; the metal foil electrode is connected with the outer sheath; the insulation pad is arranged in the middle of the outer sheath; and the metal foil electrode is connected with the partial discharger measurement instrument. Compared with the prior art, the technology employed in the utility model enables the device to have advantages of enhanced anti-interference capability, small error and high sensitivity and the like.
Description
Technical field
The utility model relates to a kind of measurement mechanism of power domain, especially relates to a kind of based on equitable cable local discharge measurement mechanism.
Background technology
The discharge that the power equipment insulation takes place in the subrange under enough strong electric field action.This discharge does not form conductive channel only to cause insulation local short (road and bridge) between conductor and connect and exceeds.Shelf depreciation all can have some influences to insulating medium each time, and slight shelf depreciation is less to the influence of power equipment insulation, and the decline of dielectric strength is slower; And strong shelf depreciation then can make dielectric strength descend very soon.This is a key factor that makes the high voltage electric power equip ment insulation damages.Therefore, during the insulation of design high voltage electric power equip ment, consider under the effect of long-term work voltage, not allow to take place in the insulation system stronger shelf depreciation.
Mainly contain ultrahigh frequency detection method, ultrasonic Detection Method and pulse current method at present.Wherein, when ultrahigh frequency detection method, ultrasonic Detection Method are used in actual field, receive easily to disturb, quantitative error is bigger; The insufficient sensitivity of pulse current method is high.
The utility model content
The purpose of the utility model be exactly provide in order to overcome the defective that above-mentioned prior art exists that a kind of antijamming capability is strong, error is little, highly sensitive based on equitable cable local discharge measurement mechanism.
The purpose of the utility model can realize through following technical scheme:
A kind of based on equitable cable local discharge measurement mechanism; It is characterized in that; Comprise metal foil electrode, insulating mat, outer jacket and measurement of partial discharge appearance, described outer jacket is enclosed within on the cable, and described metal foil electrode connects outer jacket; Described insulating mat is located at the middle part of outer jacket, and described metal foil electrode connects the measurement of partial discharge appearance.
Totally two of described metal foil electrodes connect the outer jacket of insulating mat both sides respectively.
Also comprise no shelf depreciation power frequency testing transformer, this no shelf depreciation power frequency testing transformer is located between measurement of partial discharge appearance and the metal foil electrode.
Compared with prior art, the utlity model has the advantage that antijamming capability is strong, error is little, highly sensitive.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1-first metal foil electrode, 2-insulating mat, 3-outer jacket, 4-measurement of partial discharge appearance, 5-second metal foil electrode.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
As shown in Figure 1; A kind of based on equitable cable local discharge measurement mechanism; Comprise metal foil electrode, insulating mat 2, outer jacket 3, measurement of partial discharge appearance 4 and do not have shelf depreciation power frequency testing transformer Zd; Metal foil electrode connects outer jacket 3, and insulating mat 2 is located at the middle part of outer jacket 3, and metal foil electrode connects measurement of partial discharge appearance 4 through no shelf depreciation power frequency testing transformer Zd.Totally two of metal foil electrodes are respectively first metal foil electrode 1 and second metal foil electrode 5, and both connect the outer jacket 3 of insulating mat 2 left and right sides respectively.
Claims (3)
1. one kind based on equitable cable local discharge measurement mechanism; It is characterized in that; Comprise metal foil electrode, insulating mat, outer jacket and measurement of partial discharge appearance, described outer jacket is enclosed within on the cable, and described metal foil electrode connects outer jacket; Described insulating mat is located at the middle part of outer jacket, and described metal foil electrode connects the measurement of partial discharge appearance.
2. according to claim 1 a kind ofly it is characterized in that based on equitable cable local discharge measurement mechanism, totally two of described metal foil electrodes connect the outer jacket of insulating mat both sides respectively.
3. according to claim 1 a kind of based on equitable cable local discharge measurement mechanism; It is characterized in that; Also comprise no shelf depreciation power frequency testing transformer, this no shelf depreciation power frequency testing transformer is located between measurement of partial discharge appearance and the metal foil electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201121758U CN202502200U (en) | 2012-03-22 | 2012-03-22 | Balancing method-based cable partial discharge measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201121758U CN202502200U (en) | 2012-03-22 | 2012-03-22 | Balancing method-based cable partial discharge measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202502200U true CN202502200U (en) | 2012-10-24 |
Family
ID=47038810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201121758U Expired - Lifetime CN202502200U (en) | 2012-03-22 | 2012-03-22 | Balancing method-based cable partial discharge measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202502200U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595937A (en) * | 2020-11-20 | 2021-04-02 | 沈阳达能电安全高新产业技术研究院有限公司 | Cable partial discharge measuring device based on balance method |
-
2012
- 2012-03-22 CN CN2012201121758U patent/CN202502200U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595937A (en) * | 2020-11-20 | 2021-04-02 | 沈阳达能电安全高新产业技术研究院有限公司 | Cable partial discharge measuring device based on balance method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121024 |