CN212008884U - On-line monitoring device for capacity-increasing identification of transformer - Google Patents
On-line monitoring device for capacity-increasing identification of transformer Download PDFInfo
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- CN212008884U CN212008884U CN202020466039.3U CN202020466039U CN212008884U CN 212008884 U CN212008884 U CN 212008884U CN 202020466039 U CN202020466039 U CN 202020466039U CN 212008884 U CN212008884 U CN 212008884U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
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Abstract
The utility model relates to an on-line monitoring device for transformer increase capacity discernment, its characterized in that: including high pressure isolation sensor, measurement chip, singlechip, carrier wave module, local data cache module, watchdog module and power conversion module, connect measurement chip and watchdog module on the input of singlechip, connect carrier wave module and local data cache module on the output of singlechip, high pressure isolation sensor be connected with measurement chip's input point, power conversion module provide the power for measurement chip, singlechip and watchdog module respectively. The utility model has the advantages of being scientific and reasonable in design, be an on-line monitoring device that is used for transformer increase-volume discernment that laborsaving, the monitoring result of province's people is reliable, reduce maintenance cost, protection electric wire netting safety, easily realize.
Description
Technical Field
The utility model relates to an on-line monitoring device, especially an on-line monitoring device for transformer increase capacity discernment.
Background
The capacity increase of the transformer refers to that in the process of production and operation of a power consumer, because the demand of production capacity is expanded, the originally applied power consumption capacity cannot meet the demand of production and operation, and the capacity must be applied for capacity increase on the original basis. According to the 'power supply business rules', the power consumer must apply for written application to the power supply department and issue related application information of the power consumer, and the application can be performed after the power consumer approves. However, some users do not see the regulations of the power supply department and the power utilization safety for economic benefit, the capacity of the transformer is increased privately, and the safety of the power grid is seriously threatened.
At present, the illegal behavior of the private capacity increase of the transformer can be checked only by manual regular inspection, the method is labor-wasting, low in accuracy and has certain hysteresis, generally, after the private capacity increase is seriously lost after a period of time, the private capacity increase is triggered by an accident or found by regular inspection, and the method belongs to a passive post-processing mode.
Aiming at the situation, a device needs to be developed, so that power personnel can accurately monitor the use condition of the transformer in real time and remotely, discover the private capacity-increasing behavior of the transformer in time and ensure the safety of a power grid.
Disclosure of Invention
An object of the utility model is to provide a design scientific and reasonable, laborsaving, the monitoring result of province people is reliable, reduce the maintenance cost, protect electric wire netting safety, the easy online monitoring device who is used for transformer increase-volume discernment that realizes.
The utility model provides a its technical problem realize through following technical scheme:
the utility model provides an on-line monitoring device for transformer increase capacity discernment which characterized in that: including high pressure isolation sensor, measurement chip, singlechip, carrier wave module, local data cache module, watchdog module and power conversion module, connect measurement chip and watchdog module on the input of singlechip, connect carrier wave module and local data cache module on the output of singlechip, high pressure isolation sensor be connected with measurement chip's input point, power conversion module provide the power for measurement chip, singlechip and watchdog module respectively.
And the high-voltage isolation sensor is used for collecting voltage and current parameters of a monitoring point, converting the voltage and current parameters into low-voltage weak current signals and transmitting the low-voltage weak current signals to a metering chip, and the model number of the high-voltage isolation sensor is JDZW-10.
And, the measurement chip, mainly used carry out the effective value to the low pressure weak current signal of high pressure isolation sensor collection and handle, transmit the singlechip simultaneously, its model is RN 8209D.
And the single chip microcomputer acquires the electricity utilization parameter information of the monitoring point in real time through the acquired electrical parameters and sends private capacity increasing alarm information to the carrier module, wherein the model of the private capacity increasing alarm information is ATMEGA 128A-AU.
And the carrier module transmits the alarm information to a superior concentrator through a standard 645 protocol, and after the concentrator collects a plurality of device information, the device information is uniformly uploaded to a sampling system through an optical fiber, wherein the model of the sampling system is SSC 1643.
And the local data cache module IS mainly used for pre-storing locally acquired result information, and the model IS IS62WV51216BLL-55 TLI.
And the watchdog module is mainly used for monitoring whether the running process of the singlechip is normal or not, and the model number of the watchdog module is MAX813 LESA.
Moreover, the power conversion module provides power for the whole device, and the model is as follows: HLK-PM 03.
The utility model discloses an advantage and beneficial effect do:
1. according to the online monitoring device for transformer capacity increase identification, suspicious power utilization behaviors are found at any time through real-time monitoring of power utilization parameters of the upper-level high-voltage nodes of the transformer, a corresponding inspection processing flow is triggered, and illegal behaviors are blocked and attacked before serious loss is caused by private capacity increase.
2. The utility model has the advantages of being scientific and reasonable in design, be an on-line monitoring device that is used for transformer increase-volume discernment that laborsaving, the monitoring result of province's people is reliable, reduce maintenance cost, protection electric wire netting safety, easily realize.
Drawings
Fig. 1 is a block schematic diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific examples, which are provided for illustrative purposes only, and are not intended to be limiting, and the scope of the present invention should not be limited thereby.
The utility model provides an on-line monitoring device for transformer increase capacity discernment which innovation point is: including high pressure isolation sensor, measurement chip, singlechip, carrier wave module, local data cache module, watchdog module and power conversion module, connect measurement chip and watchdog module on the input of singlechip, connect carrier wave module and local data cache module on the output of singlechip, high pressure isolation sensor be connected with measurement chip's input point, power conversion module provide the power for measurement chip, singlechip and watchdog module respectively.
The high-voltage isolation sensor is mainly used for collecting voltage and current parameters of a monitoring point under the working condition of high voltage 10KV, converting the voltage and current parameters into low-voltage weak current signals with appropriate levels, and transmitting the low-voltage weak current signals to a subsequent metering chip, wherein the model of the high-voltage isolation sensor is JDZW-10.
The metering chip is mainly used for carrying out effective value processing on low-voltage weak current signals collected by the high-voltage isolation sensor and transmitting the low-voltage weak current signals to a subsequent single chip microcomputer, and the type number of the metering chip is RN 8209D.
The single chip microcomputer acquires the electricity utilization parameter information of the monitoring point in real time through the acquired electrical parameters, and sends private capacity increasing alarm information to the carrier module once the parameter exceeds the standard and operates, wherein the model of the private capacity increasing alarm information is ATMEGA 128A-AU.
The carrier module transmits alarm information to a superior concentrator through a standard 645 protocol, the concentrator collects information of a plurality of devices and then uploads the collected information to a utilization and acquisition system through optical fibers in a unified mode, and a supervisor is prompted to check relevant violation behaviors on site, wherein the model of the violation behaviors is SSC 1643.
The local data cache module IS mainly used for pre-storing local corresponding acquisition result information and reducing the data occupancy rate of a communication channel, and the model IS IS62WV51216BLL-55 TLI.
The watchdog module is mainly used for monitoring whether the running process of the single chip microcomputer is normal or not, automatically resetting the single chip microcomputer once the running process of the single chip microcomputer is abnormal, and ensuring that the single chip microcomputer restores to an initial normal running state, wherein the model number of the single chip microcomputer is MAX813 LESA.
The power conversion module provides power for the whole device, and the model is as follows: HLK-PM 03.
The device collects real-time power utilization parameters of a subordinate transformer through high-frequency continuous monitoring of electrical parameters of a 10KV node on the upper stage of the transformer, judges the difference value between the real-time power utilization parameters and reporting parameters, timely transmits alarm information back to a power utilization collection system once abnormity is found, and a power inspector judges that the transformer under the node is a high-suspicion-degree private capacity increasing point according to an alarm result, checks and processes the transformer on site, is fast and accurate in overall positioning, and improves the power utilization safety level of an overall network.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (8)
1. The utility model provides an on-line monitoring device for transformer increase capacity discernment which characterized in that: including high pressure isolation sensor, measurement chip, singlechip, carrier wave module, local data cache module, watchdog module and power conversion module, connect measurement chip and watchdog module on the input of singlechip, connect carrier wave module and local data cache module on the output of singlechip, high pressure isolation sensor be connected with measurement chip's input point, power conversion module provide the power for measurement chip, singlechip and watchdog module respectively.
2. The on-line monitoring device for transformer capacity increase identification according to claim 1, wherein: the high-voltage isolation sensor is used for collecting voltage and current parameters of a monitoring point, converting the voltage and current parameters into low-voltage weak current signals and transmitting the low-voltage weak current signals to a metering chip, and the model number of the high-voltage isolation sensor is JDZW-10.
3. The on-line monitoring device for transformer capacity increase identification according to claim 1, wherein: the metering chip is mainly used for carrying out effective value processing on low-voltage weak current signals collected by the high-voltage isolation sensor and transmitting the low-voltage weak current signals to the single chip microcomputer, and the type number of the metering chip is RN 8209D.
4. The on-line monitoring device for transformer capacity increase identification according to claim 1, wherein: the single chip microcomputer acquires the electricity utilization parameter information of the monitoring point in real time through the acquired electrical parameters and sends private capacity increasing alarm information to the carrier module, wherein the type of the private capacity increasing alarm information is ATMEGA 128A-AU.
5. The on-line monitoring device for transformer capacity increase identification according to claim 1, wherein: the carrier module transmits alarm information to a superior concentrator through a standard 645 protocol, and the concentrator collects information of a plurality of devices and then uploads the information to a sampling system through optical fibers in a unified mode, wherein the model of the sampling system is SSC 1643.
6. The on-line monitoring device for transformer capacity increase identification according to claim 1, wherein: the local data cache module IS mainly used for pre-storing locally acquired result information, and the model IS IS62WV51216BLL-55 TLI.
7. The on-line monitoring device for transformer capacity increase identification according to claim 1, wherein: the watchdog module is mainly used for monitoring whether the running process of the singlechip is normal or not, and the model number of the watchdog module is MAX813 LESA.
8. The on-line monitoring device for transformer capacity increase identification according to claim 1, wherein: the power conversion module provides power for the whole device, and the model is as follows: HLK-PM 03.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020466039.3U CN212008884U (en) | 2020-04-02 | 2020-04-02 | On-line monitoring device for capacity-increasing identification of transformer |
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| CN202020466039.3U CN212008884U (en) | 2020-04-02 | 2020-04-02 | On-line monitoring device for capacity-increasing identification of transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114267124A (en) * | 2021-12-22 | 2022-04-01 | 深圳供电局有限公司 | Charging information processing method and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114267124A (en) * | 2021-12-22 | 2022-04-01 | 深圳供电局有限公司 | Charging information processing method and system |
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