CN211477227U - Online diagnostic device for running state of power distribution ring main unit - Google Patents
Online diagnostic device for running state of power distribution ring main unit Download PDFInfo
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- CN211477227U CN211477227U CN202020500301.1U CN202020500301U CN211477227U CN 211477227 U CN211477227 U CN 211477227U CN 202020500301 U CN202020500301 U CN 202020500301U CN 211477227 U CN211477227 U CN 211477227U
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- 238000001514 detection method Methods 0.000 claims abstract description 64
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 49
- 230000001052 transient effect Effects 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 238000003745 diagnosis Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 20
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 238000005070 sampling Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
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Abstract
The utility model discloses a distribution looped netowrk cabinet running state on-line diagnosis device belongs to looped netowrk cabinet technical field, including installing ozone detection module and transient state to earth voltage detection module on the looped netowrk cabinet shell; the ozone detection module comprises a gas production end and an internal detection module, an electrical appliance module and a discharge area generated by the electrical appliance module during working are arranged in the ring main unit, and the gas production end extends into the ring main unit shell and is arranged at the position of the discharge area; the detection module inside the transient voltage-to-ground voltage detection module is installed at a position, close to the shell gap, of the ring main unit. The ozone detection module detects the ozone concentration change to indirectly detect the discharge state of the electric appliance in the ring main unit, the transient voltage-to-ground detection module detects the electromagnetic wave released by the electric appliance in the ring main unit, the partial discharge condition of the electric appliance is indirectly judged, and the running state detection is more accurate and comprehensive.
Description
Technical Field
The utility model relates to a looped netowrk cabinet technical field, in particular to distribution looped netowrk cabinet running state online diagnosis device.
Background
The ring main unit is an electrical device with a group of high-voltage switch devices arranged in a metal or nonmetal insulating cabinet body or made into an assembled interval ring main power supply unit, and the core part of the ring main unit adopts a load switch and a fuse, so that the ring main unit has the advantages of simple structure, small volume, low price, capability of improving power supply parameters and performance, power supply safety and the like. The transformer substation is widely applied to distribution stations and box-type substations of load centers of urban residential districts, high-rise buildings, large public buildings, factory enterprises and the like.
With the continuous development of power systems and the gradual establishment of power markets, the weak links of power distribution networks are more and more prominent, and the power distribution networks are not suitable for social needs. As a key device of a power distribution network, the safe and stable operation of a ring main unit needs to be guaranteed, so that the operation state of the ring main unit needs to be monitored, the high-voltage discharge condition of the ring main unit can be indirectly monitored by detecting the concentration of ozone in the ring main unit according to the principle that ozone is generated by high-voltage discharge, the operation state is diagnosed, but electromagnetic waves can be generated due to some discharge abnormalities, the working state is not comprehensive and correct only by ozone detection, and certain errors still exist.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at just lies in providing distribution looped netowrk cabinet running state online diagnosis device in order to solve above-mentioned looped netowrk cabinet running state and detect comprehensive accurate problem inadequately, has automatic monitoring, and is more convenient, and ozone and transient state detect the more comprehensive advantage of diagnosis to ground voltage.
The utility model realizes the above purpose by the following technical proposal, and the online diagnosis device for the running state of the distribution ring main unit comprises an ozone detection module and a transient voltage-to-earth voltage detection module which are arranged on the shell of the ring main unit;
the ozone detection module comprises a gas production end and an internal detection module, an electrical appliance module and a discharge area generated by the electrical appliance module during working are arranged in the ring main unit, and the gas production end extends into the ring main unit shell and is arranged at the position of the discharge area;
the detection module inside the transient voltage-to-ground voltage detection module is installed at a position, close to the shell gap, of the ring main unit.
Preferably, the gas production end is communicated with the detection module inside the ozone detection module through a gas transmission pipeline, the gas production end is composed of a plurality of gas inlet nozzles fixed at gas inlets of the gas transmission pipeline, and the lengths of the gas inlet nozzles are gradually decreased.
Preferably, the detection module of ozone detection module includes the singlechip and with singlechip electric connection's wireless transmission module, AD converter, memory, display and alarm, AD converter and ozone sensor electric connection.
Preferably, the inside sampling pump, the pump drive module and the timing module that still include of detection module of ozone detection module, the sampling pump is used for providing suction for the suction nozzle.
Preferably, the transient voltage to ground detection module comprises a single chip microcomputer, and a coupling capacitance sensor, a display, a memory, an alarm and a wireless transmission module which are electrically connected with the single chip microcomputer.
Preferably, a filter, an amplifier and an AD converter are further disposed between the coupling capacitance sensor and the single chip for filtering and amplifying electromagnetic wave signals.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the ozone detection module detects the ozone concentration change to indirectly detect the discharge state of the electric appliance in the ring main unit, the transient voltage-to-ground detection module detects the electromagnetic wave released by the electric appliance in the ring main unit, the partial discharge condition of the electric appliance is indirectly judged, and the running state detection is more accurate and comprehensive.
2. Be the suction nozzle structure that a plurality of lengths reduce in proper order through setting up the end of will adopting the gas, gather the ozone concentration in different discharge area through the suction nozzle that differs in length, improve the detection precision of ozone detection module.
3. Through detecting module and transient state to the ground voltage inside all setting up memory, display and alarm at ozone, whether the running state is unusual in the real-time demonstration looped netowrk cabinet, if it is unusual to report to the police through the alarm, the mode of this kind of automated inspection warning is more convenient.
Drawings
Fig. 1 is a schematic view of the overall structure of the device of the present invention.
Figure 2 is the utility model discloses an ozone detects module inner module connection structure sketch map.
Fig. 3 is the utility model discloses a transient state detects module connection structure schematic diagram to ground voltage.
In the figure: 1. looped netowrk cabinet, 2, ozone detection module, 21, gas production end, 22, gas transmission pipeline, 3, transient state ground voltage detection module.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, the online diagnosis device for the operation state of the distribution ring main unit includes an ozone detection module 2 and a transient voltage-to-ground voltage detection module 3, which are installed on the outer shell of the ring main unit 1, wherein the ozone detection module 2 diagnoses whether the high voltage discharge in the ring main unit is abnormal by detecting the change condition of the ozone concentration inside the ring main unit 1, the transient voltage-to-ground voltage detection module 3 diagnoses whether the abnormal discharge condition occurs by using the electromagnetic wave generated by the partial discharge, and the purpose of diagnosing the operation state inside the ring main unit 1 is achieved by detecting the ozone and the electromagnetic wave.
Transient state is to ground voltage detection module 3 inside detection module installs in the position that looped netowrk cabinet 1 is close to the shell gap, because during partial discharge, electrical apparatus can radiate electromagnetic wave signal in the looped netowrk cabinet 1, and these signals are mostly shielded by looped netowrk cabinet 1's metal casing, and only the minority can be spread through the gap, and transient state is to ground voltage detection module 3 and installs in the position that is close to the gap, can gather electromagnetic wave signal better.
Adopt between end 21 and the inside detection module of ozone detection module 2 through gas transmission pipeline 22 intercommunication, and adopt end 21 to constitute by fixing many suction nozzles at gas transmission pipeline 22 air inlet, the length of suction nozzle steadilys decrease in proper order, air intake can be guaranteed to many suction nozzles, and suction nozzle length steadilys decrease in proper order, the air of more distant department can be gathered to long suction nozzle, the air of more near department can be gathered to short suction nozzle, the suction nozzle through this kind of mode range can improve the gas production scope of end 21 of adopting, improve the accuracy that ozone concentration detected.
Transient state is to ground voltage detection module 3 includes the singlechip and with singlechip electric connection's coupling capacitance sensor, a display, a memory, alarm and wireless transmission module, still be equipped with the wave filter between coupling capacitance sensor and the singlechip, amplifier and AD converter, be used for filtering and amplifying the electromagnetic wave signal, transient state is to ground voltage detection module 3's theory of operation is similar with ozone detection module 2, the difference lies in that detecting element is different, because the electromagnetic wave signal that produces during high-voltage discharge in looped netowrk cabinet 1 is gathered by coupling capacitance sensor, coupling capacitance sensor sends electrical signal, after being filtered and amplified by wave filter and amplifier, the rethread converter converts digital signal into by the display and shows, memory in it, alarm and wireless transmission module function are the same with the inside function of ozone detection module 2.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. Distribution looped netowrk cabinet running state on-line diagnosis device, its characterized in that: the device comprises an ozone detection module (2) and a transient voltage-to-ground detection module (3) which are arranged on the shell of a ring main unit (1);
the ozone detection module (2) comprises a gas production end (21) and an internal detection module, an electrical appliance module and a discharge area generated by the electrical appliance module during working are arranged in the ring main unit (1), and the gas production end (21) extends into the shell of the ring main unit (1) and is arranged at the position of the discharge area;
the detection module inside the transient voltage-to-ground voltage detection module (3) is installed at a position, close to a shell gap, of the ring main unit (1).
2. The online diagnosis device for the running state of the power distribution ring main unit according to claim 1, characterized in that: the gas production end (21) is communicated with the detection module inside the ozone detection module (2) through a gas transmission pipeline (22), the gas production end (21) is composed of a plurality of gas inlet nozzles fixed at gas inlets of the gas transmission pipeline (22), and the lengths of the gas inlet nozzles are gradually decreased.
3. The online diagnosis device for the operation state of the ring main unit according to claim 2, wherein: the detection module of ozone detection module (2) includes singlechip and with singlechip electric connection's wireless transmission module, AD converter, memory, display and alarm, AD converter and ozone sensor electric connection.
4. The online diagnosis device for the operation state of the ring main unit according to claim 3, wherein: the ozone detection module (2) is characterized in that the detection module comprises a sampling pump, a pump driving module and a timing module, and the sampling pump is used for providing suction for the air inlet nozzle.
5. The online diagnosis device for the running state of the power distribution ring main unit according to claim 1, characterized in that: the transient voltage to ground detection module (3) comprises a single chip microcomputer, a coupling capacitance sensor, a display, a storage, an alarm and a wireless transmission module, wherein the coupling capacitance sensor is electrically connected with the single chip microcomputer.
6. The online diagnosis device for the operation state of the ring main unit according to claim 5, wherein: and a filter, an amplifier and an AD converter are also arranged between the coupling capacitance sensor and the singlechip and are used for filtering and amplifying electromagnetic wave signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020500301.1U CN211477227U (en) | 2020-04-08 | 2020-04-08 | Online diagnostic device for running state of power distribution ring main unit |
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| CN202020500301.1U CN211477227U (en) | 2020-04-08 | 2020-04-08 | Online diagnostic device for running state of power distribution ring main unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111307220A (en) * | 2020-04-08 | 2020-06-19 | 徽辰智电科技股份有限公司 | Online diagnostic device for running state of power distribution ring main unit |
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- 2020-04-08 CN CN202020500301.1U patent/CN211477227U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111307220A (en) * | 2020-04-08 | 2020-06-19 | 徽辰智电科技股份有限公司 | Online diagnostic device for running state of power distribution ring main unit |
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