CN202948054U - Haff structure type high voltage wireless data acquisition device - Google Patents
Haff structure type high voltage wireless data acquisition device Download PDFInfo
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- CN202948054U CN202948054U CN 201220706140 CN201220706140U CN202948054U CN 202948054 U CN202948054 U CN 202948054U CN 201220706140 CN201220706140 CN 201220706140 CN 201220706140 U CN201220706140 U CN 201220706140U CN 202948054 U CN202948054 U CN 202948054U
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Abstract
A Haff structure type high voltage wireless data acquisition device is provided. The device comprises a Haff structure type low voltage current transformer, a power I/V voltage-stabilizing power supply unit, a measuring unit and a wireless transmission unit. The current transformer is used for converting middle and high voltage electrical network line current into two paths and outputting, one path is induction output voltage subjected to AC amplitude limit of D1 and D2 and rectified by D4,D5,D6 and D7 to form a high voltage level power supply for enabling the device to work integrally after passing through a DC/DC converter; the other path is adopted as an input sampling signal of the current measuring unit; the power I/V voltage-stabilizing power supply unit is used for converting open circuit output voltage of the Haff structure type low voltage current transformer to a power supply for enabling the device to work integrally; the measuring unit is used for subjecting sampling current output by the Haff structure type low voltage current transformer to A/D conversion and generating current, power and other parameter data; and the wireless transmission unit is used for realizing wireless data exchange with external equipment.
Description
Technical field
The present invention relates to a kind of automatic measurement, data collector that is applied to high pressure, medium voltage network circuit and substation transformer, relate to specifically a kind of half structure type high voltage wireless data acquisition device.
Background technology
Power department is all to use mesohigh current transformer, mesohigh voltage transformer (VT) or combined type mesohigh mutual inductor on high pressure, medium voltage network circuit at present, after electrical network parameter is converted to low-voltage, the access instrument is carried out measurement and the data acquisition of electrical network parameter, realizes high pressure, middle pressure, the monitoring of low-voltage network line operational factor, the monitoring of substation transformer operational factor.Because traditional measurement pattern is all to measure after high pressure (more than 10KV) is converted to low pressure (100V or 57.7V), easily suffer artificial change, destruction, stealing is easy to; The traditional measurement pattern will realize that distribution becomes, line loss is calculated and must a cover measurement mechanism respectively be installed first and second; The mesohigh current transformer of traditional measurement pattern using, mesohigh voltage transformer (VT) or combined type mesohigh mutual inductor volume are not easy to greatly install, Heavy Weight is wasted the materials such as a large amount of copper, iron.
Summary of the invention
The objective of the invention is for present mesohigh electrical network, the technical deficiency of distribution transforming parameter measurement, a kind of new type auto measurement collecting transmitter is provided, realizes Power network parameter measureing collection and communication on mesohigh power network line, substation transformer to be used for being directly installed on.The enforcement of this device is adopted half slide structure, is sent without outer power supply source, wireless data and realize Power network parameter measureing collection and data transmission.
Half structure type high voltage wireless data acquisition device of the present invention, the primary side that is arranged on high pressure, middle pressure, low-voltage network line and substation transformer realizes that Power network parameter measureing, substation transformer operation conditions monitor and have a wireless data transmission function, can be applicable to that high pressure, middle pressure, the monitoring of low-voltage network line operational factor, the monitoring of substation transformer operational factor, distribution become, line (transformer, power network line, lower with) damages and calculates and the Real-Time Monitoring of stealing.
Technical scheme of the present invention is: power I/V power supply unit of voltage regulation, measuring unit, wireless transmission unit.Half slide structure formula low-voltage current mutual inductor is two-way output with mesohigh power network line current conversion: the one tunnel is open circuit output, and it is as the input of power I/V power supply unit of voltage regulation; One tunnel input sample signal as current measuring unit; Power I/V power supply unit of voltage regulation is converted to the Open Output Voltage of half slide structure formula low-voltage current mutual inductor the power supply that supplies the work of device complete machine; The sample rate current that measuring unit is exported half slide structure formula low-voltage current mutual inductor carries out A/D and changes and generate the supplemental characteristics such as electric current, power; Wireless transmission unit realizes the wireless data exchange with external unit.A kind of half structure type high voltage wireless data acquisition device that is applied to high pressure, medium voltage network circuit and substation transformer, it comprises half slide structure formula low-voltage current mutual inductor, power I/V power supply unit of voltage regulation, current measuring unit, wireless transmission unit, half slide structure formula low-voltage current mutual inductor inductive coil is exported mesohigh power network line current conversion two-way, one the tunnel for inducing voltage, through D1, D2 exchanges amplitude limit; D4, D5, D6, D7 rectification; LM2841 DC/DC transducer forms high pressure equipotential power supply for the work of device complete machine.Another road is as the input sample signal of described current measuring unit, and the sampled point stream that described current measuring unit is exported half slide structure formula low-voltage current mutual inductor carries out A/D and changes and generate electric current, power parameter data; Described wireless transmission unit realizes the wireless data exchange with external unit, described half slide structure inductive coil is non-closed split-type structure, the magnetic field energy that primary current produces concentrates in the saddle type magnetic core, secondary coil and magnetic core consist of energy storage inductor and with Fig. 1 in power circuit consist of the self-adaptation stabilized voltage supply.Be that power source loads institute energy requirement obtains from energy storage inductor.Common low-voltage current mutual inductor (closure or open-close type) energy density is far below half slide structure formula inductive coil of the present invention, and the present invention can provide working power on a large scale, 3% ~ 600% reliable and stable work of line current cumulative.
Above-mentioned half structure type high voltage wireless data acquisition device, it is further characterized in that and need not outer power supply source, half slide structure formula low-voltage current mutual inductor centering high-tension line load current is responded to, produce Open Output Voltage, by power I/V power supply unit of voltage regulation, Open Output Voltage is converted to the device working power.
Above-mentioned half structure type high voltage wireless data acquisition device, further be characterised in that power I/V power supply unit of voltage regulation for using low-voltage from recovering numerically controlled Switching Power Supply, prevent that too small or slow liter of mesohigh line load electric current of mesohigh line load electric current from causing the device deadlock in situation;
Above-mentioned half structure type high voltage wireless data acquisition device is characterised in that further power I/V power supply unit of voltage regulation adopts hardware frequency generator and software frequency generator to carry out the synthetic output of logic high-frequency controling signal as the switching frequency of low-voltage switches power supply.Soft, hard two frequency generators are followed control.
Above-mentioned half structure type high voltage wireless data acquisition device, it is further characterized in that described wireless transmission unit adopts the double-direction radio transmitting-receiving, formed by wireless receiving circuit and wireless transmission circuit, complete multiple spot to the two-way micro power consumption wireless data transmission of any according to anti-data collision wireless network data transmission standard mechanism and low-voltage equipment.Device uses the full embedding of epoxy sealing technique, can adapt to normally operation in outdoor high low temperature, high humidity environment fully, guarantees that the wireless portion that seals can't be destroyed.
half structure type high voltage wireless data acquisition device of the present invention, be installed on the half slide structure formula low-voltage current mutual inductor on the mesohigh circuit, different from the closed homogeneous of routine mutual inductor unshakable in one's determination, it is non-closed split-type low-voltage current mutual inductor, it directly is close in non-closed split-type low-voltage current mutual inductor the primary side of mesohigh power network line or substation transformer, realized high pressure, middle pressure, low-voltage network line operational factor and the monitoring of substation transformer operational factor, compare with traditional mesohigh electrical network measurement pattern, its advantage is: device need not outer power supply source and adopts the wireless data transmission of carrying out, with secondary device without any physical connection, therefore can solve cheaply the insulation safety problem, device adopts half slide structure, need not to cut off high-tension cable or busbar, can directly its non-closed splitted structure be close in mesohigh power network line or substation transformer primary side, installs very convenient, device is arranged on the high-pressure side but what use is low-voltage current mutual inductor, and little with traditional high-voltage mutual inductor phase specific volume, consumptive material is few, can save the materials such as a large amount of copper, iron, built-in wireless transmission channel can be used as measurement point and directly accesses intelligent grid and Internet of Things, for intelligent grid provides mesohigh electrical network measurement data, and is the various real-time information of Internet of Things transmission.
Description of drawings
Fig. 1 is the circuit theory schematic diagram of half structure type high voltage wireless data acquisition device of the present invention.
Fig. 2 is the theory diagram of half structure type high voltage wireless data acquisition device of the present invention.
Fig. 3 is the embodiment schematic diagram of half structure type high voltage wireless data acquisition device of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail as follows.
a typical intelligent electricity anti-theft system is by half structure type high voltage wireless data acquisition device, multifunctional electric energy meter, field service terminal, front end processor, the WEB server, WEB interface client forms, close up up and down the half structure type high voltage wireless data acquisition device that is contained on high-voltage power line, communicate by letter with employing micro power consumption wireless between field service terminal, adopt RS485 to communicate by letter between multifunctional electric energy meter and field service terminal, field service terminal and front end processor are realized exchanges data by GPRS or optical fiber, each user calls survey together by access to the Internet WEB server, check the electric current of high-voltage fence circuit, the power correlation curve of the data such as power and primary side and secondary side.
Embodiment: referring to Fig. 2, embodiments of the invention are comprised of half slide structure formula low-voltage current mutual inductor, power I/V stabilized voltage supply, measuring unit, wireless transmission unit, wherein respond to power taking in the load current of half slide structure formula low-voltage current mutual inductor, the direct therefrom high-voltage fence in two unit of power I/V power supply unit of voltage regulation, application hardware frequency generator and software frequency generator carry out the synthetic gauge tap frequency of logic, low-voltage produces from recovering PWM position contron the power supply that supplies whole device work; Current sample uses the sampling circuit output signal of half slide structure formula low-voltage current mutual inductor, exports to A/D and change after rail-to-rail operational amplifier conditioning; CPU calculates the A/D data that convert, and generates the data such as electric current, power; Wireless transmission unit builds anti-data collision wireless data transmission network, completes multiple spot to the two-way micro power consumption wireless data transmission of any with low-voltage equipment, sends the data such as electric current, power to the low pressure data receiving equipment.
Half structure type high voltage wireless data acquisition device of the present invention, directly non-closed split-type low-voltage current mutual inductor is close in the primary side of mesohigh power network line or substation transformer, realized high pressure, middle pressure, low-voltage network line operational factor and the monitoring of substation transformer operational factor, compare with traditional mesohigh electrical network measurement pattern, its advantage is: device need not outer power supply source and adopts the wireless data transmission of carrying out, without any physical connection, therefore can solve cheaply the insulation safety problem with secondary device; Device adopts half slide structure, need not to cut off high-tension cable or busbar, can directly its non-closed splitted structure be close in mesohigh power network line or substation transformer primary side, installs very convenient; Device is arranged on the high-pressure side but what use is low-voltage current mutual inductor, and little with traditional high-voltage mutual inductor phase specific volume, consumptive material is few, can save the materials such as a large amount of copper, iron; Built-in wireless transmission channel can be used as measurement point and directly accesses intelligent grid and Internet of Things, for intelligent grid provides mesohigh electrical network measurement data, and is the various real-time information of Internet of Things transmission.Fig. 3 is the embodiment schematic diagram of half structure type high voltage wireless data acquisition device of the present invention.
Although the present invention with preferred embodiment openly as above; but embodiment and accompanying drawing are not to limit the present invention, anyly are familiar with this skill person, without departing from the spirit and scope of the invention; from when making various changes or retouch, belong to equally the present invention's protection domain.What therefore protection scope of the present invention should be defined with the application's claim protection domain is as the criterion.
Claims (4)
1. half structure type high voltage wireless data acquisition device that is applied to high pressure, medium voltage network circuit and substation transformer, it comprises half slide structure formula low-voltage current mutual inductor, power I/V power supply unit of voltage regulation, current measuring unit, wireless transmission unit, it is characterized in that: the inductive coil of described half slide structure formula low-voltage current mutual inductor is two-way output with mesohigh power network line current conversion: the one tunnel for inducing voltage, exchanges amplitude limit through D1, D2; D4, D5, D6, D7 rectification; The DC/DC transducer forms the high-voltage power supply for the work of device complete machine; Another road is as the input sample signal of described current measuring unit; Described power I/V power supply unit of voltage regulation is converted to the Open Output Voltage of half slide structure formula low-voltage current mutual inductor the power supply that supplies the work of device complete machine; The sample rate current that described current measuring unit is exported half slide structure formula low-voltage current mutual inductor carries out A/D and changes and generate electric current, power parameter data; Described wireless transmission unit realizes the wireless data exchange with external unit; The inductive coil of described half slide structure formula low-voltage current mutual inductor is non-closed split-type structure, and the magnetic field energy that primary current produces concentrates in the saddle type magnetic core, and secondary coil and magnetic core consist of energy storage inductor and consist of the self-adaptation stabilized voltage supply with power circuit.
2. half structure type high voltage wireless data acquisition device according to claim 1, is characterized in that: the full embedding of device use epoxy sealing technique; Described half slide structure formula low-voltage current mutual inductor centering high-tension line load current is responded to, and produces Open Output Voltage, by power I/V power supply unit of voltage regulation, Open Output Voltage is converted to the device working power.
3. half structure type high voltage wireless data acquisition device according to claim 1, it is characterized in that: described power I/V power supply unit of voltage regulation is that low-voltage is from recovering numerically controlled Switching Power Supply, adopt hardware frequency generator and software frequency generator to carry out the synthetic output of logic high-frequency controling signal as the switching frequency of low-voltage switches power supply, soft, hard two frequency generators are followed control.
4. half structure type high voltage wireless data acquisition device according to claim 1, it is characterized in that: described wireless transmission unit adopts the double-direction radio transmitting-receiving, formed by wireless receiving circuit and wireless transmission circuit, complete multiple spot to the two-way micro power consumption wireless data transmission of any according to anti-data collision wireless network data transmission standard mechanism and low-voltage equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220706140 CN202948054U (en) | 2012-12-20 | 2012-12-20 | Haff structure type high voltage wireless data acquisition device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220706140 CN202948054U (en) | 2012-12-20 | 2012-12-20 | Haff structure type high voltage wireless data acquisition device |
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| CN202948054U true CN202948054U (en) | 2013-05-22 |
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| CN 201220706140 Expired - Lifetime CN202948054U (en) | 2012-12-20 | 2012-12-20 | Haff structure type high voltage wireless data acquisition device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652133A (en) * | 2016-03-26 | 2016-06-08 | 国家电网公司 | CT wireless tester based on cell phone platform and synchronous testing method |
| CN110208597A (en) * | 2019-05-23 | 2019-09-06 | 宁波大学 | A kind of self-power wireless current monitoring system based on simplex winding current transformer |
-
2012
- 2012-12-20 CN CN 201220706140 patent/CN202948054U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652133A (en) * | 2016-03-26 | 2016-06-08 | 国家电网公司 | CT wireless tester based on cell phone platform and synchronous testing method |
| CN110208597A (en) * | 2019-05-23 | 2019-09-06 | 宁波大学 | A kind of self-power wireless current monitoring system based on simplex winding current transformer |
| CN110208597B (en) * | 2019-05-23 | 2021-04-23 | 宁波大学 | Self-powered wireless current monitoring system based on single-winding current transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU NANRUI TONGCHI AUTOMATION SYSTEM CO., LTD. Free format text: FORMER NAME: JIANGSU TONGCHI AUTOMATIZATION SYSTEM CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 210031 Nanjing high tech Zone, Liuzhou, North Road, No. 22, No. Patentee after: JIANGSU NARI TONGCHI AUTOMATION SYSTEM Co.,Ltd. Address before: 210031, No. 22 Liuzhou North Road, Xiao Liu Industrial Zone, Nanjing hi tech Zone, Jiangsu Patentee before: JIANGSU TONGCHI POWER AUTOMATION Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170209 Address after: 210031 Nanjing high tech Zone, Liuzhou, North Road, No. 22, No. Patentee after: NARI SANNENG POWER METER (NANJING) CO.,LTD. Address before: 210031 Nanjing high tech Zone, Liuzhou, North Road, No. 22, No. Patentee before: JIANGSU NARI TONGCHI AUTOMATION SYSTEM Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |