CN211014526U - High tension switchgear partial discharge ozone on-line monitoring device - Google Patents
High tension switchgear partial discharge ozone on-line monitoring device Download PDFInfo
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- CN211014526U CN211014526U CN201921792536.6U CN201921792536U CN211014526U CN 211014526 U CN211014526 U CN 211014526U CN 201921792536 U CN201921792536 U CN 201921792536U CN 211014526 U CN211014526 U CN 211014526U
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Abstract
The utility model provides a high tension switchgear partial discharge ozone on-line monitoring device, including power supply, casing, ozone response equipment, communicating pipe, air pump, controller, control host computer and the mobile device of being convenient for the staff on-the-spot reading data; the communicating pipe is arranged on one side of the shell and communicated with the interior of the high-voltage switch cabinet, and the air pump is arranged at the lower end of the shell; the controller is arranged at the upper end of the shell; the power supply penetrates through the shell and is respectively and electrically connected with the ozone induction equipment, the controller and the air pump; the ozone induction equipment is electrically connected with the controller, and the air pump is also electrically connected with the controller; the controller is in wireless communication connection with the monitoring upper computer and the mobile device respectively, transmits the alarm information to the monitoring upper computer and transmits the partial discharge information to the mobile device. The utility model provides a high tension switchgear partial discharge ozone on-line monitoring device monitors accurately and can report an emergency and ask for help or increased vigilance partial discharge phenomenon.
Description
Technical Field
The utility model relates to a technical field of high tension switchgear partial discharge monitoring, more specifically relates to a high tension switchgear partial discharge ozone on-line monitoring device.
Background
The high-voltage switch cabinet is very important electrical equipment in an electric power system, has double functions of controlling a circuit and ensuring system safety, and plays a vital role in a power distribution link of the electric power system. Along with the continuous improvement of the requirement of modern power systems on the quality of electric energy, correspondingly higher requirements are also put forward on the reliability of the high-voltage switch cabinet, according to survey statistics, the faults of the high-voltage switch cabinet mainly include refusal action faults, misoperation faults, on-off and on-off faults, insulation faults, current-carrying faults, external force and other faults, the safe and reliable operation of the switch cabinet is influenced by insulation defects or deterioration in the high-voltage switch equipment and poor contact of conductive connection parts, and a discharge phenomenon can be generated in the latent period of the faults, so that the normal operation of the power system is seriously influenced.
Air is usually adopted in the high-voltage switch cabinet as an insulating medium, and when partial discharge occurs in the high-voltage switch cabinet, oxygen containing two oxygen atoms in the air is converted into ozone containing three oxygen atoms, so that power grid workers can indirectly monitor the partial discharge condition in the high-voltage switch cabinet by monitoring the ozone gas content or concentration change in the high-voltage switch cabinet.
The existing method for monitoring the internal partial discharge of the high-voltage switch cabinet by adopting a partial discharge detector is off-line detection, and detection work can be carried out only by field operation of workers, so that the high-voltage switch cabinet with the partial discharge cannot be found in time, and the detection work efficiency is low; in the chinese patent application No. CN20360277U, filed on 6.12.2013, the on-line monitoring function of partial discharge can be indirectly realized, but the reliability of the monitoring result of the method is closely related to the ozone concentration, and when the ozone concentration in the high-voltage switch cabinet is too high, the accuracy of the result of long-time continuous monitoring cannot be guaranteed, and in addition, the method cannot realize the function of warning the partial discharge phenomenon.
In summary, the on-line monitoring device for the partial discharge ozone of the high-voltage switch cabinet is disclosed, which can accurately monitor the partial discharge phenomenon and can continuously monitor and alarm.
SUMMERY OF THE UTILITY MODEL
For overcoming the current mode that adopts the inside partial discharge of partial discharge detector off-line monitoring high tension switchgear, have the drawback of inefficiency, and when ozone concentration was too high in the high tension switchgear, the result accuracy of the unable long-time continuous monitoring of mode assurance that adopts ultraviolet absorption spectroscopy on-line monitoring also can not realize the function of reporting an emergency and asking for help or increased vigilance to partial discharge phenomenon, the utility model provides a high tension switchgear partial discharge ozone on-line monitoring device accurate and that can the continuity monitoring and report an emergency and ask for help or increased vigilance to partial discharge phenomenon monitoring.
The utility model discloses aim at solving above-mentioned technical problem to a certain extent at least.
In order to achieve the above technical effects, the technical scheme of the utility model as follows:
the high-voltage switch cabinet partial discharge ozone online monitoring device is characterized by comprising a power supply, a shell for containing gas to be monitored, ozone induction equipment, an air pump, a controller, a monitoring upper computer and mobile equipment, wherein the ozone induction equipment, the air pump, the controller, the monitoring upper computer and the mobile equipment are arranged in the shell; the air pump and the controller are both arranged on the shell; the power supply penetrates through the shell and is electrically connected with the ozone induction equipment, the air pump and the controller respectively; the ozone induction equipment and the air pump are electrically connected with the controller; the controller is also in wireless communication connection with the monitoring upper computer and the mobile device respectively.
The device is respectively and electrically connected with the ozone induction equipment, the controller and the air pump through the power supply to continuously supply power to the ozone induction equipment, the controller and the air pump, and the controller is respectively in wireless communication connection with the monitoring upper computer and the mobile equipment, so that the continuous online monitoring of the partial discharge ozone concentration of the high-voltage switch cabinet is realized.
Preferably, the power supply comprises mains supply, a rectifier and a storage battery for directly supplying power to the device; the utility model discloses a device, including rectifier, battery, the one end of rectifier is connected to the commercial power electricity, and the other end electricity of rectifier connects the battery, the rectifier carries out transmission to the battery end after the alternating current-direct current conversion with the commercial power, utilizes the nimble charge-discharge function of battery, provides the assurance for the continuation on-line monitoring of device.
Preferably, the ozone induction device comprises an ozone sensor and an a/D converter for converting an ozone information analog signal sensed by the ozone sensor into a digital signal, the ozone sensor is electrically connected with the a/D converter, the a/D converter is electrically connected with one end of the controller, and transmits the converted ozone information digital signal to the controller for processing, and the ozone induction device is the most initial contact between the device and ozone gas and is the basis for realizing the subsequent ozone information analysis processing and transmission functions of the device.
Preferably, be equipped with processing module, GPRS gateway module, zigBee module and be used for transmitting the alarm module of partial discharge warning message on the controller, processing module electricity respectively connects GPRS gateway module, zigBee module and alarm module, and processing module transmits to GPRS gateway module, zigBee module and alarm module after with the information analysis processing of controller receipt.
Preferably, the air pump includes the pump body and sets up the pump body sensor that is used for responding to the pump body on the pump body to bleed information, the pump body sensor is connected to one end electricity of the pump body, pump body sensor electricity is connected the processing module of controller, bleed information transmission to processing module analysis processing with the pump body, after the device is put into operation ozone monitoring and is begun, the pump body is taken out the air in the device, make and produce the negative pressure in the device, gas in the high tension switchgear gets into in the device through communicating pipe, pump body sensor is with pump body bleed information transmission to processing module analysis processing, when processing module analysis reached device inner chamber gas volume value that the gas content that the pump body bled has reached, show that the inside original gas of device has also been taken out completely, the staff closes the pump body.
Preferably, the GPRS gateway module on the controller wirelessly transmits ozone concentration information analyzed and processed by the processing module to the monitoring upper computer through a 4G network, the alarm module wirelessly transmits partial discharge alarm information to the monitoring upper computer through the 4G network, the ZigBee module transmits the partial discharge information of the high-voltage switch cabinet equipment to the mobile equipment through ZigBee wireless communication, and background monitoring personnel timely make a further working plan through monitoring information displayed on the upper computer to ensure that the partial discharge phenomenon is timely processed; the ZigBee module transmits the partial discharge information of the high-voltage switch cabinet equipment to the mobile equipment through ZigBee wireless communication, and when on-site workers need to determine the partial discharge information of specific certain high-voltage switch cabinet equipment, the reading of the specific partial discharge information is completed through wireless connection of the ZigBee module and the mobile equipment.
Preferably, one side of casing is equipped with the communicating pipe that provides the passageway for the inside gaseous inflow of high tension switchgear, communicating pipe and the inside of high tension switchgear, casing connect gradually and link up, and the one end of communicating pipe is equipped with the flange, the nested sealing washer that is equipped with in flange upper end, communicating pipe and flange be the integrated into one piece structure, the leakproofness that communicating pipe and high tension switchgear are connected has been guaranteed in the existence of sealing washer, also further improves the utility model discloses the accuracy of monitoring result.
Preferably, the device is further provided with an exhaust pipe for providing an exhaust channel when the air pump exhausts air, the air pump is arranged in a pipe cavity of the exhaust pipe, and the air pumped by the air pump is exhausted from one end of the air pump, enters the exhaust pipe at the same time, and is exhausted from the exhaust pipe to enter the external environment.
Preferably, a filter screen layer for preventing dust and homogenizing gas concentration is fixedly arranged in the shell, and the lower end of the filter screen layer is connected with one side of the communicating pipe; the inner side surface of the shell is also provided with a moisture-proof plate, and the moisture-proof plate is stuck and fixed on the inner side surface of the shell through an adhesive; the existence of the filter screen layer can prevent dust in the high-voltage switch cabinet from entering the inner cavity of the device on one hand, and on the other hand, the filter screen layer plays a role in limiting the concentration of gas to be monitored which enters the device through the communicating pipe due to the pressure difference between the inside of the high-voltage switch cabinet and the inside of the device, so that the concentration of the gas uniformly enters the device, and the phenomenon that the monitoring result of the device is inaccurate due to overhigh concentration of ozone is avoided.
Preferably, one side of casing is equipped with the mounting panel, two mounting holes have been seted up on the mounting panel, and the staff utilizes the bolt to pass through the mounting hole with the device installation in high tension switchgear's outside, the installation is simple and do not influence high tension switchgear's normal operating, further guarantees the realization of on-line monitoring function.
Compared with the prior art, the utility model discloses technical scheme's beneficial effect is:
the utility model discloses a power supply connects ozone response equipment, controller and air pump respectively electricity, for ozone response equipment, controller and air pump continuation power supply, and the controller again respectively with control host computer, mobile device wireless communication connection, has realized the continuation on-line monitoring of high tension switchgear partial discharge ozone concentration.
Drawings
Fig. 1 is the structure schematic diagram of the high-voltage switch cabinet partial discharge ozone on-line monitoring device provided by the utility model. Fig. 2 is the circuit schematic block diagram of the high-voltage switch cabinet partial discharge ozone on-line monitoring device provided by the utility model.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;
it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
Example 1
Fig. 1 and 2 show a schematic structural diagram of a high-voltage switch cabinet partial discharge ozone online monitoring device and fig. 2 shows a schematic circuit diagram of the high-voltage switch cabinet partial discharge ozone online monitoring device. Referring to fig. 1 and 2, the high-voltage switch cabinet partial discharge ozone online monitoring device comprises a power supply 1, a housing 2, an ozone induction device 3 arranged inside the housing 2, an air pump 4, a controller 5 for processing and forwarding ozone monitoring and warning information, a monitoring upper computer 6 and a mobile device 8; the air pump 4 and the controller 5 are both arranged on the shell 2; the power supply 1 penetrates through the shell 2 and is respectively and electrically connected with the ozone induction equipment 3, the air pump 4 and the controller 5; the ozone induction equipment 3 and the air pump 4 are electrically connected with the controller 5; the controller 5 is also in wireless communication connection with the monitoring upper computer 6 and the mobile device 8 respectively.
The high-voltage switch cabinet partial discharge device is respectively and electrically connected with the ozone induction equipment 3, the controller 5 and the air pump 4 through the power supply 1 to continuously supply power to the ozone induction equipment 3, the controller 5 and the air pump 4, and the controller 5 is respectively in wireless communication connection with the monitoring upper computer 6 and the mobile equipment 8, so that continuous online monitoring of the partial discharge ozone concentration of the high-voltage switch cabinet is realized.
Referring to fig. 2, the power supply 1 includes commercial power, a rectifier and a storage battery for directly supplying power to the device; the utility model discloses a device, including rectifier, battery, the one end of rectifier is connected to the commercial power electricity, and the other end electricity of rectifier connects the battery, the rectifier carries out transmission to the battery end after the alternating current-direct current conversion with the commercial power, utilizes the nimble charge-discharge function of battery, provides the assurance for the continuation on-line monitoring of device. The ozone induction equipment 3 comprises an ozone sensor and an A/D converter which is used for converting an ozone information analog signal sensed by the ozone sensor into a digital signal, the ozone sensor is electrically connected with the A/D converter, the A/D converter is electrically connected with one end of the controller and transmits the converted ozone information digital signal to the controller for processing, and the ozone induction equipment is the most initial contact between the device and ozone gas and is the basis for realizing the subsequent ozone information analysis processing and transmission functions of the device. Be equipped with processing module, GPRS gateway module, zigBee module and be used for transmitting the alarm module of partial discharge warning message on the controller 5, processing module electricity respectively connects GPRS gateway module, zigBee module and alarm module, and processing module transmits to GPRS gateway module, zigBee module and alarm module after with information analysis processes that controller 5 received. The air pump 4 is arranged at the lower end of the shell 2 and comprises a pump body and a pump body sensor arranged on the pump body and used for sensing pump body air exhaust information, wherein one end of the pump body is electrically connected with the pump body sensor, the pump body sensor is electrically connected with a processing module of the controller 5 and used for transmitting the pump body air exhaust information to the processing module for analysis and processing, after the device is put into operation and ozone monitoring is started, the pump body pumps air out of the device to generate negative pressure in the device, gas in the high-voltage switch cabinet enters the device through the communicating pipe, the pump body sensor transmits the pump body air exhaust information to the processing module for analysis and processing, and when the processing module analyzes that the content of the gas exhausted by the pump body reaches the gas volume value in the inner cavity of the device, the fact.
The GPRS gateway module on the controller 5 wirelessly transmits ozone concentration information analyzed and processed by the processing module to the monitoring upper computer 6 through a 4G network, the alarm module also wirelessly transmits partial discharge alarm information to the monitoring upper computer 6 through the 4G network, the ZigBee module transmits the partial discharge information of the high-voltage switch cabinet equipment to the mobile equipment 8 through ZigBee wireless communication, and background monitoring personnel timely make a further working plan through monitoring information displayed on the upper computer 6 to ensure that the partial discharge phenomenon is timely processed; the ZigBee module transmits the partial discharge information of the high-voltage switch cabinet equipment to the mobile equipment through ZigBee wireless communication, and when on-site workers need to determine the partial discharge information of specific certain high-voltage switch cabinet equipment, the reading of the specific partial discharge information is completed through wireless connection of the ZigBee module and the mobile equipment.
Referring to fig. 1, one side of casing 2 is equipped with communicating pipe 9, and communicating pipe 9 connects gradually with high tension switchgear's inside, casing 2's inside and link up, and the one end of communicating pipe 9 is equipped with flange 91, and the nested sealing washer 911 that is equipped with in flange 91 upper end, and communicating pipe 9 and flange 91 are integrated into one piece structure, and the existence of sealing washer has guaranteed the leakproofness of being connected with high tension switchgear communicating pipe, also further improves the utility model discloses monitoring result's accuracy.
The device is also provided with an exhaust pipe 7 which provides an exhaust channel when the air pump 4 exhausts air, the exhaust pipe 7 is arranged at the lower end of the shell 2, the air pump 4 is arranged in the cavity of the exhaust pipe 7, and the air pumped by the air pump 4 is discharged from one end of the exhaust pipe, enters the exhaust pipe at the same time, and is discharged from the exhaust pipe to enter the external environment. A filter screen layer 21 for preventing dust and homogenizing gas concentration is fixedly arranged in the shell 2, and the lower end of the filter screen layer 21 is connected with one side of the communication pipe 9; the inner side surface of the shell 2 is also provided with a moisture-proof plate 22, and the moisture-proof plate 22 is fixed on the inner side surface of the shell 2 through adhesive; the existence of the filter screen layer 21 can prevent dust in the high-voltage switch cabinet from entering the inner cavity of the device on one hand, and on the other hand, the filter screen layer plays a role in limiting the concentration of gas to be monitored which enters the device through the communicating pipe due to the pressure difference between the inside of the high-voltage switch cabinet and the inside of the device, so that the concentration of the gas uniformly enters the device, and the phenomenon that the monitoring result of the device is inaccurate due to overhigh concentration of ozone is avoided. One side of casing 2 is equipped with mounting panel 23, has seted up two mounting holes 231 on the mounting panel 23, and the staff utilizes the bolt to pass through mounting hole 231 with the device installation in high tension switchgear's outside, and the installation is simple and does not influence high tension switchgear's normal operating, further guarantees the realization of on-line monitoring function.
The same or similar reference numerals correspond to the same or similar parts;
the positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent;
it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The high-voltage switch cabinet partial discharge ozone online monitoring device is characterized by comprising a power supply (1), a shell (2) for containing gas to be monitored, ozone induction equipment (3) arranged inside the shell (2), an air pump (4), a controller (5) for processing and transmitting ozone monitoring and alarm information, a monitoring upper computer (6) and mobile equipment (8); the air pump (4) and the controller (5) are both arranged on the shell (2); the power supply (1) penetrates through the shell (2) and is respectively and electrically connected with the ozone induction equipment (3), the air pump (4) and the controller (5); the ozone induction equipment (3) and the air pump (4) are electrically connected with the controller (5); the controller (5) is also in wireless communication connection with the monitoring upper computer (6) and the mobile device (8) respectively.
2. The high-voltage switch cabinet partial discharge ozone online monitoring device according to claim 1, wherein the power supply (1) comprises a mains supply, a rectifier and a storage battery for directly supplying power to the device; the commercial power is electrically connected with one end of the rectifier, the other end of the rectifier is electrically connected with the storage battery, and the rectifier converts alternating current and direct current of the commercial power and transmits the converted alternating current to the storage battery end.
3. The high voltage switch cabinet partial discharge ozone online monitoring device according to claim 1, wherein the ozone sensing device (3) comprises an ozone sensor and an a/D converter for converting an ozone information analog signal sensed by the ozone sensor into a digital signal, the ozone sensor is electrically connected with the a/D converter, the a/D converter is electrically connected with one end of the controller, and the converted ozone information digital signal is transmitted to the controller for processing.
4. The high-voltage switch cabinet partial discharge ozone online monitoring device according to claim 1, wherein a processing module, a GPRS gateway module, a ZigBee module and an alarm module for transmitting partial discharge alarm information are arranged on the controller (5), the processing module is electrically connected with the GPRS gateway module, the ZigBee module and the alarm module respectively, and the processing module analyzes and processes information received by the controller (5) and transmits the information to the GPRS gateway module, the ZigBee module and the alarm module.
5. The high-voltage switch cabinet partial discharge ozone online monitoring device according to claim 4, wherein the air pump (4) comprises a pump body and a pump body sensor arranged on the pump body and used for sensing pump body air extraction information, one end of the pump body is electrically connected with the pump body sensor, the pump body sensor is electrically connected with a processing module of the controller (5), and the pump body air extraction information is transmitted to the processing module for analysis and processing.
6. The high-voltage switch cabinet partial discharge ozone online monitoring device according to claim 5, wherein a GPRS gateway module on the controller (5) wirelessly transmits ozone concentration information analyzed and processed by a processing module to a monitoring upper computer (6) through a 4G network, the alarm module wirelessly transmits partial discharge alarm information to the monitoring upper computer (6) through the 4G network, and the ZigBee module transmits partial discharge information of high-voltage switch cabinet equipment to the mobile equipment (8) through ZigBee wireless communication.
7. The high-voltage switch cabinet partial discharge ozone online monitoring device according to claim 1, wherein a communicating pipe (9) for providing a passage for inflow of gas inside the high-voltage switch cabinet is arranged on one side of the housing (2), the communicating pipe (9) is sequentially connected and communicated with the inside of the high-voltage switch cabinet and the inside of the housing (2), a flange (91) is arranged at one end of the communicating pipe (9), a sealing ring (911) is nested at the upper end of the flange (91), and the communicating pipe (9) and the flange (91) are of an integrally formed structure.
8. The high-voltage switch cabinet partial discharge ozone online monitoring device according to claim 1, wherein an exhaust pipe (7) providing an exhaust passage for the air pump (4) during air extraction is further arranged on the device, and the air pump (4) is arranged in a pipe cavity of the exhaust pipe (7).
9. The high-voltage switch cabinet partial discharge ozone online monitoring device according to any one of claims 1 to 8, characterized in that a filter screen layer (21) for preventing dust and homogenizing gas concentration is fixedly arranged inside the housing (2), and the lower end of the filter screen layer (21) is connected with one side of the communicating pipe (9); the inner side surface of the shell (2) is further provided with a moisture-proof plate (22), and the moisture-proof plate (22) is fixed on the inner side surface of the shell (2) through adhesive pasting.
10. The high-voltage switch cabinet partial discharge ozone online monitoring device according to claim 9, wherein a mounting plate (23) is arranged on one side of the housing (2), two mounting holes (231) are formed in the mounting plate (23), and an operator installs the device outside the high-voltage switch cabinet through the mounting holes (231) by using bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921792536.6U CN211014526U (en) | 2019-10-23 | 2019-10-23 | High tension switchgear partial discharge ozone on-line monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921792536.6U CN211014526U (en) | 2019-10-23 | 2019-10-23 | High tension switchgear partial discharge ozone on-line monitoring device |
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| Publication Number | Publication Date |
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| CN211014526U true CN211014526U (en) | 2020-07-14 |
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| CN201921792536.6U Active CN211014526U (en) | 2019-10-23 | 2019-10-23 | High tension switchgear partial discharge ozone on-line monitoring device |
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| CN (1) | CN211014526U (en) |
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