CN203278737U - Intelligent on-load voltage regulation dry-type transformer - Google Patents
Intelligent on-load voltage regulation dry-type transformer Download PDFInfo
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- CN203278737U CN203278737U CN 201320341051 CN201320341051U CN203278737U CN 203278737 U CN203278737 U CN 203278737U CN 201320341051 CN201320341051 CN 201320341051 CN 201320341051 U CN201320341051 U CN 201320341051U CN 203278737 U CN203278737 U CN 203278737U
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- type transformer
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- acquisition module
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Abstract
The utility model relates to an intelligent on-load voltage regulation dry-type transformer comprising a dry-type transformer, a vacuum load tap switch and a controller which is capable of controlling the vacuum load tap switch. The controller comprises a current acquisition module, a voltage acquisition module, a temperature acquisition module, a power frequency acquisition module and a power acquisition module, and the controller also comprises a display module and an alarm module. The controller is connected with a monitoring computer through an RS485 interface, and the monitoring computer is provided with a wireless communication module. The intelligent on-load voltage regulation dry-type transformer, based on intelligent improvement of the on-load voltage regulation dry-type transformer, can carry out the remote monitoring and control, and the convenient management is realized; and the fan cooling system is also improved so that the unattended operation of the fan is realized.
Description
(1) technical field
The utility model relates to a kind of load tap-changing dry-type transformer.
(2) background technology
Development along with power industry, the usage ratio that the on-load tap-changing transformer of power transformer accounts for distribution transformer is increasing year by year, but the present China power transformer particularly Power Transformers Operating Under Overload overwhelming majority (95%) is not the transformer of loaded automatic voltage-regulating, so that when supply load fluctuates, spread of voltage, make power consumption equipment work unreliable, unstable product quality, severe patient causes overvoltage scaling loss power consumption equipment, and vacuum loaded automatic voltage-regulating dry-type transformer is the key that addresses the above problem.But it does not generally have vacuum loaded automatic voltage-regulating dry-type transformer of the prior art remote control function, particularly blower fan etc. and needs the people on duty.
(3) summary of the invention
In order to overcome the above-mentioned deficiency of prior art, the utility model provides a kind of intelligent load tap-changing dry-type transformer.
The technical scheme in the invention for solving the technical problem is:
A kind of intelligent load tap-changing dry-type transformer, comprise dry-type transformer, vacuum on-load operation switch and can control the controller of vacuum on-load operation switch work, described controller comprises current acquisition module, voltage acquisition module, temperature collect module, mains frequency acquisition module and power collection module, described controller also includes display module and alarm module, described controller connects a supervisory control comuter by the RS485 interface, and described supervisory control comuter is provided with wireless communication module.
As preferably, temperature collect module comprises the thermistor in the winding that is embedded in dry-type transformer, and described thermistor connects the temperature comparing unit that is arranged in controller, and the output of described controller connects a blower fan.
As preferably, controller comprises the first controller and the second controller that is connected in parallel.
As preferably, thermistor is Pt100 temperature-sensitive platinum resistance.
controller carries out real-time data acquisition and control to transformer, by the current acquisition module, voltage acquisition module, temperature collect module, mains frequency acquisition module and power collection module gather the electric current of transformer, voltage, temperature, the various data such as mains frequency and power, and thereby the work of control vacuum on-load operation switch changes effective access number of turn of transformer, when voltage during higher or lower than a certain set point, automatically send specification signal, control on load tap changer by a tap-change operation to another tap, in the situation that do not cut off load current, the effective turn of conversion transformer, the transformation ratio of conversion transformer, make output voltage stabilization in the accuracy rating of regulation.In addition, various parameters are shown, the discovery fault is sent alarm signal.controller connects a supervisory control comuter by RS485, can facilitate personnel to monitor and operate control in other Control Rooms, supervisory control comuter also can be connected to distribution SCADA system by communication network, allow the power management personnel can accurately and timely grasp the ruuning situation of transformer, for power supply department is understood the distribution operation in real time, carry out line loss analyzing, load prediction, improve rate of qualified voltage, optimize power supply plan, the business such as distribution planning and user's supervision provide scientific basis significant to the operation and management level that improves Reliability of Power Supplying Net Work and system.
Be embedded with Pt100 temperature-sensitive platinum resistance at the coiling hotspot place and measure temperature signal, when transformer load increases, operating temperature rises, winding temperature reaches a certain numerical value (this value is adjustable, and can adjust to 10 series is 90 ℃), and it is cooling that system starts blower fan automatically, (this value is also adjustable when winding temperature is reduced to a certain numerical value, it is 80 ℃ that 10 series can be adjusted), system stops blower fan automatically, has realized automatically controlling Fan Cooling System by the operating temperature of transformer.It can reduce the transformer temperature rise, can extend its useful life again.
The beneficial effects of the utility model are: the utility model is by carrying out Intelligent improvement to load tap-changing dry-type transformer, can remote monitoring and control, and convenient management also improves Fan Cooling System, but realizes the blower fan unattended operation.
(4) description of drawings
Fig. 1 is part conspectus of the present utility model.
Fig. 2 is the utility model structural representation.
(5) embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, 2, a kind of intelligent load tap-changing dry-type transformer, comprise dry-type transformer 1, vacuum on-load operation switch 2 and can control the controller 3 of vacuum on-load operation switch work, controller comprises current acquisition module, voltage acquisition module, temperature collect module, mains frequency acquisition module and power collection module, controller also includes display module and alarm module, described controller connects a supervisory control comuter 4 by the RS485 interface, and described supervisory control comuter is provided with wireless communication module.Temperature collect module comprises the Pt100 temperature-sensitive platinum resistance in the winding that is embedded in dry-type transformer, and Pt100 temperature-sensitive platinum resistance connects the temperature comparing unit that is arranged in controller, and the output of controller connects a blower fan.Controller comprises the first controller and the second controller that is connected in parallel.
3 pairs of transformers of controller carry out real-time data acquisition and control, by the current acquisition module, voltage acquisition module, temperature collect module, mains frequency acquisition module and power collection module gather the electric current of transformer, voltage, temperature, the various data such as mains frequency and power, and thereby 2 work of control vacuum on-load operation switch change effective access number of turn of transformers, when voltage during higher or lower than a certain set point, automatically send specification signal, control on load tap changer by a tap-change operation to another tap, in the situation that do not cut off load current, the effective turn of conversion transformer, the transformation ratio of conversion transformer, make output voltage stabilization in the accuracy rating of regulation.In addition, various parameters are shown, the discovery fault is sent alarm signal.controller connects a supervisory control comuter by RS485, can facilitate personnel to monitor and operate control in other Control Rooms, supervisory control comuter also can be connected to distribution SCADA system by communication network, allow the power management personnel can accurately and timely grasp the ruuning situation of transformer, for power supply department is understood the distribution operation in real time, carry out line loss analyzing, load prediction, improve rate of qualified voltage, optimize power supply plan, the business such as distribution planning and user's supervision provide scientific basis significant to the operation and management level that improves Reliability of Power Supplying Net Work and system.
Be embedded with Pt100 temperature-sensitive platinum resistance at the coiling hotspot place and measure temperature signal, when transformer load increases, operating temperature rises, winding temperature reaches a certain numerical value (this value is adjustable, and can adjust to 10 series is 90 ℃), and it is cooling that system starts blower fan automatically, (this value is also adjustable when winding temperature is reduced to a certain numerical value, it is 80 ℃ that 10 series can be adjusted), system stops blower fan automatically, has realized automatically controlling Fan Cooling System by the operating temperature of transformer.It can reduce the transformer temperature rise, can extend its useful life again.
Claims (4)
1. intelligent load tap-changing dry-type transformer, comprise dry-type transformer, vacuum on-load operation switch and can control the controller of vacuum on-load operation switch work, it is characterized in that: described controller comprises current acquisition module, voltage acquisition module, temperature collect module, mains frequency acquisition module and power collection module, described controller also includes display module and alarm module, described controller connects a supervisory control comuter by the RS485 interface, and described supervisory control comuter is provided with wireless communication module.
2. a kind of intelligent load tap-changing dry-type transformer according to claim 1, it is characterized in that: described temperature collect module comprises the thermistor in the winding that is embedded in dry-type transformer, described thermistor connects the temperature comparing unit that is arranged in controller, and the output of described controller connects a blower fan.
3. a kind of intelligent load tap-changing dry-type transformer according to claim 2, it is characterized in that: described controller comprises the first controller and the second controller that is connected in parallel.
4. a kind of intelligent load tap-changing dry-type transformer according to claim 3, it is characterized in that: described thermistor is Pt100 temperature-sensitive platinum resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320341051 CN203278737U (en) | 2013-05-31 | 2013-05-31 | Intelligent on-load voltage regulation dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320341051 CN203278737U (en) | 2013-05-31 | 2013-05-31 | Intelligent on-load voltage regulation dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203278737U true CN203278737U (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320341051 Expired - Fee Related CN203278737U (en) | 2013-05-31 | 2013-05-31 | Intelligent on-load voltage regulation dry-type transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494063A (en) * | 2018-03-09 | 2019-03-19 | 国网浙江省电力公司金华供电公司 | The control device and control method of on-load tap changers of transformers |
-
2013
- 2013-05-31 CN CN 201320341051 patent/CN203278737U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494063A (en) * | 2018-03-09 | 2019-03-19 | 国网浙江省电力公司金华供电公司 | The control device and control method of on-load tap changers of transformers |
| CN109494063B (en) * | 2018-03-09 | 2021-02-09 | 国网浙江省电力公司金华供电公司 | Control device and control method for on-load tap-changer of transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20190531 |