CN204789736U - Cable insulation intelligent monitoring device - Google Patents
Cable insulation intelligent monitoring device Download PDFInfo
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- CN204789736U CN204789736U CN201520447115.5U CN201520447115U CN204789736U CN 204789736 U CN204789736 U CN 204789736U CN 201520447115 U CN201520447115 U CN 201520447115U CN 204789736 U CN204789736 U CN 204789736U
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- monitoring device
- intelligent monitoring
- warning
- electric current
- cable insulation
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Abstract
The utility model discloses a cable insulation intelligent monitoring device, including the master controller, be used for gathering the current sensor, warning electric current threshold values load button, acousto -optic warning lamp of cable sheathing ground connection circulation and gather the status display screen with the master controller goes on being connected respectively. The utility model discloses a high accuracy current sensor detects high voltage power cable's the electric current of revealing, possesses higher measurement accuracy and stronger anti -interference ability, and accessible load button or host computer set up warning electric current threshold values, and when monitoring the electric current when being greater than the warning electric current threshold values that sets up, the acousto -optic warning lamp starts realizes the warning, and the warning staff in time overhauls, reduces the fault rate, reduction equipment idle time.
Description
Technical field
The utility model relates to power grid security monitoring and evaluation field, specifically a kind of cable insulation intelligent monitoring device.
Background technology
The magnetic line of force that the cable core of single core cable is produced by alternating current and protective metal shell cutting make its two ends occur induced voltage (if protective metal shell suspend can danger close).Under normal circumstances, single core cable protective metal shell is one end protective ground, and the other end directly receives ground, the circulation very little (about 1A) that cable metal sheath produces.But after protective metal shell multipoint earthing, the amplitude that circulation increases changes with the change of line impedance, and can reach the 50%-90% of principal current time serious, namely tens of ampere even hundreds of amperes, loss is very large.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of cable insulation intelligent monitoring device, adopt the on-line monitoring that just can reach the multipoint earthing to cable cover(ing) to the monitoring of circulating current in sheath, pre-diagnosing, alarming effectively, prevent the generation of fault disaster, reduce loss, can maintenance cost be reduced simultaneously, lower failure rate, reduce equipment idle time.
The technical solution of the utility model is:
Cable insulation intelligent monitoring device, includes primary controller, carry out with primary controller being respectively connected for gathering the current sensor of cable cover(ing) grounding circulation, alarm current threshold values load button, audible-visual alarm lamp and acquisition state display screen.
Described cable insulation intelligent monitoring device also includes the RS485 communication interface be connected with primary controller.
Described acquisition state display screen includes A phase real-time current display screen, B phase real-time current display screen and C phase real-time current display screen.
Described cable insulation intelligent monitoring device also includes the run indicator and communication pilot lamp that are connected with primary controller.
Advantage of the present utility model:
The utility model adopts high precision electric current transducer to detect the Leakage Current of high voltage power cable, possess higher measuring accuracy and stronger interference free performance, by load button or host computer, alarm current threshold values is set, when monitoring electric current and being greater than set alarm current threshold values, audible-visual alarm lamp starts realization and reports to the police, remind staff to overhaul in time, lower failure rate, reduce equipment idle time.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model.
Embodiment
See Fig. 1, cable insulation intelligent monitoring device, include primary controller 1, carry out with primary controller 1 being respectively connected for gathering the current sensor 2 of cable cover(ing) grounding circulation, alarm current threshold values load button 3, audible-visual alarm lamp 4, acquisition state display screen 5, RS485 communication interface 6, run indicator 7 and communication pilot lamp 8; Wherein, acquisition state display screen includes A phase real-time current display screen, B phase real-time current display screen and C phase real-time current display screen.
Use principle of the present utility model:
First by alarm current threshold values load button 3, alarm current threshold values is reached primary controller 1, then A, B, C three-phase real-time current of current sensor 2 Real-time Collection cable cover(ing) ground connection, be transferred to primary controller 1 again, when Real-time Collection electric current exceedes alarm current threshold values, primary controller 1 controls audible-visual alarm lamp 4 and realizes reporting to the police, and reminds staff to rush to repair in time; Acquisition state display screen 5 is for showing A, B, C three-phase real-time current, and RS485 communication interface 6 is for carrying out communication with host computer, and run indicator 7 is for indication device running status, and communication pilot lamp 8 is for representing the state of RS485 communication interface 6 communication.
Claims (4)
1. cable insulation intelligent monitoring device, is characterized in that: include primary controller, carry out with primary controller being respectively connected for gathering the current sensor of cable cover(ing) grounding circulation, alarm current threshold values load button, audible-visual alarm lamp and acquisition state display screen.
2. cable insulation intelligent monitoring device according to claim 1, is characterized in that: described cable insulation intelligent monitoring device also includes the RS485 communication interface be connected with primary controller.
3. cable insulation intelligent monitoring device according to claim 1, is characterized in that: described acquisition state display screen includes A phase real-time current display screen, B phase real-time current display screen and C phase real-time current display screen.
4. cable insulation intelligent monitoring device according to claim 2, is characterized in that: described cable insulation intelligent monitoring device also includes the run indicator and communication pilot lamp that are connected with primary controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520447115.5U CN204789736U (en) | 2015-06-26 | 2015-06-26 | Cable insulation intelligent monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520447115.5U CN204789736U (en) | 2015-06-26 | 2015-06-26 | Cable insulation intelligent monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204789736U true CN204789736U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520447115.5U Active CN204789736U (en) | 2015-06-26 | 2015-06-26 | Cable insulation intelligent monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204789736U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318786A (en) * | 2017-01-18 | 2018-07-24 | 中国电力科学研究院 | A kind of discrimination method and device of power distribution network cable run insulation ag(e)ing risk |
-
2015
- 2015-06-26 CN CN201520447115.5U patent/CN204789736U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318786A (en) * | 2017-01-18 | 2018-07-24 | 中国电力科学研究院 | A kind of discrimination method and device of power distribution network cable run insulation ag(e)ing risk |
| CN108318786B (en) * | 2017-01-18 | 2022-02-25 | 中国电力科学研究院 | Method and device for identifying insulation aging risk of power distribution network cable line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |