CN201795838U - Online monitoring device for water intake of cable duct - Google Patents
Online monitoring device for water intake of cable duct Download PDFInfo
- Publication number
- CN201795838U CN201795838U CN2010205151522U CN201020515152U CN201795838U CN 201795838 U CN201795838 U CN 201795838U CN 2010205151522 U CN2010205151522 U CN 2010205151522U CN 201020515152 U CN201020515152 U CN 201020515152U CN 201795838 U CN201795838 U CN 201795838U
- Authority
- CN
- China
- Prior art keywords
- lever
- cable duct
- monitoring device
- water
- respectively connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model relates to a monitoring device for a cable duct in a transformer substation, in particular to an online monitoring device for water intake of a cable duct. The monitoring device is characterized in that: the device comprises a shell (2), wherein a water floater (1) is arranged in a shell (2); one end of a lever (3) extends into the shell (2) and is matched with the water floater (1) so that the water floater (1) props up one end of the lever (3) during floating to tilt the lever (3); a limit switch (SQ) is arranged at the other end of the lever (3) so that the lever (3) triggers the limit switch (SQ) during tilting; the both ends which are respectively connected in series with a light-emitting diode (LED) and a relay coil (XJ) of the limit switch (SQ) are respectively connected with power supply; and the both ends which are respectively connected in series with a pair of contacts (XJ-1) and a buzzer (LB) of a relay are respectively connected with the power supply. Tested by experiment, the monitoring device can promptly and reliably give an alarm.
Description
Technical field
The utility model relates to the cable duct monitoring equipment of transformer station, especially cable duct water inlet on-Line Monitor Device.
Background technology
All there are many cable ducts in transformer station, has wherein arranged cable of high pressure, direct current secondary cable, protection return cable, signal circuit cable etc.Undertaking the power supply output of transformer station; The network arrangement of relay protection, aut.eq., signal circuit; Be the indispensable infrastructure of transformer station.The service requirement of cable duct cleans no ponding for its planted agent.When water inlet in the cable duct surpasses cable, will cause certain potential safety hazard to equipment operation, bigger with substituting harm season, for example cable freezes, bursting by freezing, freeze phenomenons such as disconnected, alternating current-direct current ground connection, short circuit, broken string, protection malfunction, tripping.Because usual cable duct seal, fire wall is just arranged one every one section, so be difficult to be found to which part ponding of end cable duct.
The utility model content
The purpose of this utility model provides a kind of cable duct water inlet on-Line Monitor Device, and it can provide caution after the cable duct water inlet, remind the operations staff in time to handle, thereby has guaranteed the safe and reliable operation of cable.
A kind of cable duct water inlet on-Line Monitor Device, its special feature is, comprise a housing, it is floating to be provided with a water in this housing, other has an end of a lever to stretch in this housing and matches with water is floating that thereby an end of jack-up lever makes the lever inclination when water floats, thereby the other end of this lever is equipped with the one stroke switch and triggers the trip switch when lever tilts, the trip switch is connected with a light emitting diode and relay coil respectively, two ends after the series connection are connected with power supply respectively, the a pair of contact of this relay is connected with hummer, and the two ends after the series connection are connected with power supply respectively.
Have the groove or the through hole that supply water and flow on its middle shell.
Wherein travel switch also joins with a manual switch series.
Through probationary certificate, the utility model device is reported to the police in time reliable, thereby has effectively reduced owing to the cable bursting by freezing that the cable duct water inlet causes, freeze disconnectedly, and cable insulation descends, AC and DC short circuit ground connection, potential safety hazards such as protection malfunction, tripping.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is circuit theory diagrams of the present utility model;
Accompanying drawing 3 is circuit theory diagrams of the present utility model.
Embodiment
Principle of work of the present utility model is as follows:
After cable duct water inlet, the water in the housing 2 floating 1 float, and trigger travel switch SQ by lever 3, relay coil XJ energising when LED is lighted, and a pair of normally open contact XJ-1 closure of relay, hummer LB gets and begins to report to the police after electric.
If manual K switch is opened then warning function is closed.
The other current-limiting resistance R that also is provided with of hummer LB.
Usually housing 2, water is floating 1, travel switch SQ etc. partly is positioned in the cable duct, and LED and hummer LB etc. partly is positioned in the operating room, connects by electric wire then to get final product.
Claims (3)
1. cable duct water inlet on-Line Monitor Device, it is characterized in that: comprise a housing (2), in this housing (2), be provided with a water floating (1), other have an end of a lever (3) to stretch in this housing (2) and with water floating (1) thus match water floating (1) when floating an end of jack-up lever (3) lever (3) is tilted, the other end of this lever (3) is equipped with one stroke switch (SQ) thereby triggers the trip switch (SQ) when lever (3) tilts, the trip switch (SQ) is connected with a light emitting diode (LED) and relay coil (XJ) respectively, two ends after the series connection are connected with power supply respectively, the a pair of contact (XJ-1) of this relay is connected with hummer (LB), and the two ends after the series connection are connected with power supply respectively.
2. cable duct water inlet on-Line Monitor Device as claimed in claim 1 is characterized in that: have the groove or the through hole that supply water and flow on its middle shell (2).
3. cable duct water inlet on-Line Monitor Device as claimed in claim 1 or 2, it is characterized in that: wherein travel switch (SQ) is also connected with a manual switch (K).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205151522U CN201795838U (en) | 2010-09-02 | 2010-09-02 | Online monitoring device for water intake of cable duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205151522U CN201795838U (en) | 2010-09-02 | 2010-09-02 | Online monitoring device for water intake of cable duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201795838U true CN201795838U (en) | 2011-04-13 |
Family
ID=43850744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205151522U Expired - Fee Related CN201795838U (en) | 2010-09-02 | 2010-09-02 | Online monitoring device for water intake of cable duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201795838U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887388A (en) * | 2012-11-02 | 2013-01-23 | 云南创新新材料股份有限公司 | Detection alarm mechanism for coated material drops on paper |
| CN105043507A (en) * | 2015-05-30 | 2015-11-11 | 国网山东济南市历城区供电公司 | Cable trench water ingress alarm device |
-
2010
- 2010-09-02 CN CN2010205151522U patent/CN201795838U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887388A (en) * | 2012-11-02 | 2013-01-23 | 云南创新新材料股份有限公司 | Detection alarm mechanism for coated material drops on paper |
| CN105043507A (en) * | 2015-05-30 | 2015-11-11 | 国网山东济南市历城区供电公司 | Cable trench water ingress alarm device |
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Legal Events
| 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 |
Granted publication date: 20110413 Termination date: 20140902 |
|
| EXPY | Termination of patent right or utility model |