CN112986767A - On-line monitoring system is put in distribution room cubical switchboard equipment office - Google Patents
On-line monitoring system is put in distribution room cubical switchboard equipment office Download PDFInfo
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- CN112986767A CN112986767A CN202110260968.8A CN202110260968A CN112986767A CN 112986767 A CN112986767 A CN 112986767A CN 202110260968 A CN202110260968 A CN 202110260968A CN 112986767 A CN112986767 A CN 112986767A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 82
- 238000009413 insulation Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention relates to a local discharge online monitoring system for switch cabinet equipment in a power distribution room, which comprises a wire inlet spacing end, a main wire spacing end, a bus PT, a wire outlet end, a first monitoring host, a second monitoring host, a first sensor and a second sensor, wherein the wire outlet end is provided with a plurality of wires, the second sensor is arranged on the wire inlet spacing end and the bus PT and is used for monitoring voltage, the first sensor is arranged on the main wire spacing end and the wire outlet end and is used for monitoring current, the first monitoring host is electrically connected with the wire inlet spacing end and the second sensor on the bus PT, the first monitoring host is electrically connected with the first sensor on the main wire spacing end, and the second monitoring host is respectively electrically connected with the first sensor. The partial discharge online monitoring system for the switch cabinet equipment in the power distribution room can realize the monitoring of 12 monitoring points through two monitoring hosts, realize real-time monitoring and alarming and timely find and deal with the partial discharge phenomenon.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a local discharge online monitoring system for switch cabinet equipment in a distribution room.
Background
The partial discharge online monitoring system is a partial discharge online monitoring system, and the partial discharge is discharge which is generated only in a partial area in an insulator and does not penetrate between conductors to which voltage is applied, can be generated near the conductors, and can also be generated in other places. The insulation life is affected when partial discharges occur in the insulation. Each time of discharge, impact of high-energy electrons or accelerated electrons, especially long-term partial discharge, can cause various physical effects and chemical reactions, such as breaking insulating chemical bonds to crack when charged particles impact the outer wall of a bubble, destroying insulating molecular structures, causing insulation deterioration and accelerating the insulation damage process. Therefore, there is a need to develop an on-line monitoring system for partial discharge of a switchgear in a distribution room, which can monitor the switchgear in real time and reduce the partial discharge phenomenon.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the local discharge online monitoring system for the switch cabinet equipment in the power distribution room, which can realize real-time monitoring of a plurality of monitoring points and timely discover the local discharge phenomenon.
The specific technical scheme is as follows: the utility model provides a distribution room cubical switchboard equipment office is put on-line monitoring system, includes inlet wire interval end, thread interval end, generating line PT, leading-out terminal, first monitoring host computer, second monitoring host computer, first sensor and second sensor, the leading-out terminal has a plurality ofly, the second sensor sets up on inlet wire interval end and generating line PT for monitoring voltage, first sensor sets up at thread interval end and leading-out terminal, is used for monitoring current, second sensor electric connection on first monitoring host computer and inlet wire interval end and the generating line PT, first sensor electric connection of first monitoring host computer and thread interval end, second monitoring host computer respectively with first sensor electric connection.
Preferably, the first sensor is a high-frequency current sensor, and the second sensor is an instantaneous voltage sensor.
Preferably, there are 2 incoming line spacing ends, 2 main line spacing ends and 7 outgoing line ends.
As a preferred scheme, the first monitoring host and the second monitoring host are both 6-channel monitoring hosts.
Preferably, the monitoring host is provided with a buzzer.
Preferably, the monitoring host is provided with a warning lamp.
The invention has the technical effects that: the partial discharge online monitoring system for the switch cabinet equipment in the power distribution room can realize the monitoring of 12 monitoring points through two monitoring hosts, realize real-time monitoring and alarming and timely find and deal with the partial discharge phenomenon.
Drawings
Fig. 1 is a schematic diagram of an on-line monitoring system for partial discharge of a switchgear in a distribution room according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an arrangement of a first sensor and a second sensor according to an embodiment of the present invention.
Detailed Description
The essential features and advantages of the invention will be further explained below with reference to examples, but the invention is not limited to the examples listed.
As shown in fig. 1 to 2, the on-line monitoring system is put in electricity distribution room cubical switchboard equipment office of this embodiment, including inlet wire interval end 1, thread interval end 2, generating line PT3, outlet terminal 4, first monitoring host computer 5, second monitoring host computer 6, first sensor 7 and second sensor 8, the outlet terminal has a plurality ofly, second sensor 8 sets up on inlet wire interval end 1 and generating line PT3 for monitoring voltage, first sensor 7 sets up at thread interval end 2 and outlet terminal 4 for monitoring current, first monitoring host computer 5 and inlet wire interval end 1 and the second sensor 8 electric connection on generating line PT3, first monitoring host computer 5 and the first sensor 7 electric connection of thread interval end 2. The second monitoring host 6 is electrically connected to the first sensors 7 respectively. Among the above-mentioned technical scheme, the cubical switchboard is the 6kV cubical switchboard, through setting up two monitoring hosts, can monitor voltage and electric current on the different terminals respectively, and the monitoring host computer of this embodiment is the partial discharge monitor, adopts single physical quantity 6 passageway monitoring host computer to monitor, and all cubical switchboard inlet wires partial discharge on-line monitoring to use single physical quantity mode inlet wire monitoring. In this embodiment, there are 2 inlet wire interval ends, and there are 2 thread interval ends, there are 7 outlet terminals, and the monitoring host computer sets up in IP67 waterproof protective case. Through above-mentioned technical scheme, can realize carrying out real-time supervision and warning to the partial discharge of switch board, avoid electric elements impaired.
In this embodiment, the first sensor 7 is a high-frequency current sensor, and the second sensor 8 is an instantaneous voltage sensor. The local discharge real-time online monitoring host and the sensors of the switch cabinet are designed with low power consumption, and the local discharge real-time online monitoring host has the function of supplying power to all the sensors in jurisdiction, so that the sensors do not need to be supplied with power. The local discharge real-time online monitoring host computer of the switch cabinet is provided with an Ethernet RJ45 interface and is matched with 1 set of 1000M optical converter, so that the reliability is high and the anti-interference capability is strong. In this embodiment, the monitoring host is provided with a buzzer, the monitoring host is provided with a warning lamp, when the host detects partial discharge, a spot yellow light signal flashes for warning, a spot alarm sounds, and an alarm message is transmitted to the central control room through a network, so that a worker can be reminded as soon as possible and can deal with the situation quickly.
The local discharge online monitoring system for the switch cabinet equipment in the power distribution room can realize the monitoring of 12 monitoring points through two monitoring hosts, realize real-time monitoring and alarming and timely find and treat the local discharge phenomenon.
It should be noted that the above-mentioned preferred embodiments are merely illustrative of the technical concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a distribution room cubical switchboard equipment office is put on-line monitoring system, its characterized in that, includes inlet wire interval end, thread interval end, generating line PT, leading-out terminal, first monitoring host computer, second monitoring host computer, first sensor and second sensor, the leading-out terminal has a plurality ofly, the second sensor sets up on inlet wire interval end and generating line PT for monitoring voltage, first sensor sets up at thread interval end and leading-out terminal, is used for monitoring current, second sensor electric connection on first monitoring host computer and inlet wire interval end and the generating line PT, first sensor electric connection of first monitoring host computer and thread interval end, the second monitoring host computer respectively with first sensor electric connection.
2. The system according to claim 1, wherein the first sensor is a high frequency current sensor and the second sensor is an instantaneous ground voltage sensor.
3. The system of claim 2, wherein there are 2 incoming line terminals, 2 main line terminals and 7 outgoing lines.
4. The system according to claim 3, wherein the first monitoring host and the second monitoring host are both 6-channel monitoring hosts.
5. The system for monitoring the partial discharge of the switchgear of the power distribution room in the on-line monitoring of the partial discharge of the switchgear of claim 4, wherein the monitoring host is provided with a buzzer.
6. The system for monitoring the partial discharge of the switchgear cabinet in the power distribution room in the on-line monitoring of the partial discharge of the switchgear cabinet in the power distribution room in accordance with claim 5, wherein the monitoring host is provided with a warning lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110260968.8A CN112986767A (en) | 2021-03-10 | 2021-03-10 | On-line monitoring system is put in distribution room cubical switchboard equipment office |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110260968.8A CN112986767A (en) | 2021-03-10 | 2021-03-10 | On-line monitoring system is put in distribution room cubical switchboard equipment office |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112986767A true CN112986767A (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110260968.8A Pending CN112986767A (en) | 2021-03-10 | 2021-03-10 | On-line monitoring system is put in distribution room cubical switchboard equipment office |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203178416U (en) * | 2013-01-30 | 2013-09-04 | 梁红军 | Switch cabinet partial discharge on-line monitoring system based on pulse current and ground wave |
| CN109828189A (en) * | 2019-02-19 | 2019-05-31 | 福建聚实新能源科技有限公司 | Partial discharge on-Line Monitor Device, system and method based on ubiquitous electric power Internet of Things |
| CN210120427U (en) * | 2019-06-24 | 2020-02-28 | 上海宏力达信息技术股份有限公司 | Line running state analysis monitoring device based on Internet of things |
| CN212180944U (en) * | 2019-12-20 | 2020-12-18 | 上海南月电气自动化有限公司 | Switch cabinet partial discharge on-line monitoring system |
| CN112305982A (en) * | 2020-12-14 | 2021-02-02 | 国网湖北省电力有限公司黄冈供电公司 | Switch cabinet based on-line monitoring technology |
-
2021
- 2021-03-10 CN CN202110260968.8A patent/CN112986767A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203178416U (en) * | 2013-01-30 | 2013-09-04 | 梁红军 | Switch cabinet partial discharge on-line monitoring system based on pulse current and ground wave |
| CN109828189A (en) * | 2019-02-19 | 2019-05-31 | 福建聚实新能源科技有限公司 | Partial discharge on-Line Monitor Device, system and method based on ubiquitous electric power Internet of Things |
| CN210120427U (en) * | 2019-06-24 | 2020-02-28 | 上海宏力达信息技术股份有限公司 | Line running state analysis monitoring device based on Internet of things |
| CN212180944U (en) * | 2019-12-20 | 2020-12-18 | 上海南月电气自动化有限公司 | Switch cabinet partial discharge on-line monitoring system |
| CN112305982A (en) * | 2020-12-14 | 2021-02-02 | 国网湖北省电力有限公司黄冈供电公司 | Switch cabinet based on-line monitoring technology |
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Application publication date: 20210618 |