CN204945279U - A kind of mixing console for Electrical Power Line Parameter test - Google Patents
A kind of mixing console for Electrical Power Line Parameter test Download PDFInfo
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- CN204945279U CN204945279U CN201520727388.5U CN201520727388U CN204945279U CN 204945279 U CN204945279 U CN 204945279U CN 201520727388 U CN201520727388 U CN 201520727388U CN 204945279 U CN204945279 U CN 204945279U
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Abstract
The utility model relates to electrical engineering field, relates to a kind of mixing console for Electrical Power Line Parameter test in particular.Mixing console of the present utility model can integrated management and control alien frequencies power supply, measure main frame and a-b box, it comprises microprocessor, serial communication interface circuit and a-b box driving circuit, microprocessor is by serial communication interface circuit respectively with alien frequencies power supply with measures main frame and be electrically connected and produce control signal and control alien frequencies power supply and measure the operational motion of main frame, and microprocessor is electrically connected by a-b box driving circuit and a-b box and produces the switching of measure the item circuit in drive singal control a-b box.It can integrated management multiple stage power test equipment, and the equipment reducing Electrical Power Line Parameter test controls and patching operations complicacy, reduces working strength and increases work efficiency.Meanwhile, tester by operating the mixing console of low pressure, away from power circuit and the testing apparatus of band high pressure, thus can prevent personal injury accident.
Description
Technical field
The utility model relates to electrical engineering field, relates to a kind of mixing console for Electrical Power Line Parameter test in particular.
Background technology
Electrical Power Line Parameter test job generally comprises multiple test event, and such as positive sequence impedance, zero sequence impedance, positive sequence electric capacity, zero sequence electric capacity, two-circuit zero-sequence mutual inductance are anti-, zero sequence coupling in two-circuit is held.Existing test macro comprises alien frequencies power supply and measures multiple equipment such as main frame, as shown in Figure 1, operator scheme substantially all belongs to artificial panel operation, namely need tester by the keyboard on equipment operating panel and pushbutton switch etc. successively operation alien frequencies power supply and measure main frame, operate very loaded down with trivial details and there is equipment and personal risk.
Specifically, during on-the-spot test, connect the wiring of what a test event at every turn, need measuring the basic parameter and the measure the item that host panel are arranged circuit, then on alien frequencies power panel, arrange the output mode of alien frequencies power supply, manual confirmation alien frequencies power supply, measurement main frame, wiring state arrange coupling unification.During test, need artificial hand adjustment alien frequencies power supply to boost gradually, and Real Time Observation measure the display state of main frame, when reaching the state that can test, operational measure host panel is measured again, also needs repeatedly to adjust to obtain accurate measurements in process, finally completes dependence test.Need again manual operation alien frequencies power voltage step down to make zero after being completed, then remove the p-wire on all devices, then adjust the connecting line between each testing apparatus and power circuit according to next pilot project demand.Owing to usually needing more than ten p-wire, manually repeatedly thread-changing not only at substantial time, and the loaded down with trivial details easy generation misoperation of process.
If wiring or misoperation, then can cause that whole tester work is abnormal is even burnt.Not only delay test job, also easy damage equipment and causing personal injury accidents.Simultaneously, operator is when operating equipment, need the equipment that close contact is running, the equipment binding post of even a lot of producer and guidance panel are in same plane and distance is very near, as measured the high tension terminal A3 of main frame in Fig. 1, B3, C3 from manual operation keyboard very close to, and the three-phase voltage output of alien frequencies power supply generally has a few hectovolt, the induced voltage on power circuit generally has tens volts to upper kilovolt, and the safety of these high voltages to tester brings greater risk.
This problem needs change badly.
Utility model content
The utility model is in order to overcome the deficiencies in the prior art, object aims to provide a kind of mixing console for Electrical Power Line Parameter test, it can integrated management multiple stage power test equipment, the equipment reducing Electrical Power Line Parameter test controls and patching operations complicacy, reduces working strength and increases work efficiency.Meanwhile, tester by operating the mixing console of low pressure, away from power circuit and the testing apparatus of band high pressure, thus can prevent personal injury accident.
In order to solve above-mentioned technical matters, the basic technical scheme that the utility model proposes is:
A kind of mixing console for Electrical Power Line Parameter test, described mixing console can integrated management and control alien frequencies power supply, measure main frame and a-b box, wherein, described mixing console comprises microprocessor, serial communication interface circuit and a-b box driving circuit, microprocessor by serial communication interface circuit respectively with alien frequencies power supply with measures main frame and be electrically connected and produce control signal and control alien frequencies power supply and measure the operational motion of main frame, microprocessor is electrically connected by a-b box driving circuit and a-b box and produces the switching that drive singal controls measure the item circuit in a-b box.
Further, described a-b box driving circuit comprises two resistance and the first photoisolator, and the one end on the former limit of the first photoisolator is connected with the first resistance, and the other end on former limit is connected with microprocessor; One end of the secondary of the first photoisolator is connected with the second resistance and a-b box respectively, the other end ground connection of secondary.
Further, described mixing console configures seven road a-b box driving circuits.
Further, described mixing console also comprises a-b box state detection circuit, display, key-press module and storer, and microprocessor is connected with display, key-press module, storer respectively; Described microprocessor is by a-b box state detection circuit and a-b box electrical connection, and a-b box state detection circuit detects the operating state of a-b box and forms status signal input microprocessor.
Further, described a-b box state detection circuit comprises the 3rd resistance, the 4th resistance and the second photoisolator, and the one end on the former limit of the second photoisolator is connected with the 3rd resistance, and the other end on former limit is connected with a-b box; One end of the secondary of the second photoisolator is connected with the 4th resistance and microprocessor respectively, the other end ground connection of secondary.
Further, described microprocessor adopts model to be the digital signal processor of DSP2812.
The beneficial effects of the utility model are: the mixing console of the utility model design, compared with the method for testing not having mixing console with tradition, it can make test man carry out Long-distance Control by the keyboard on mixing console to alien frequencies power supply, multiple equipment such as main frame and a-b box of measuring, and avoids test man and frequently walks about between multiple testing apparatus and operate.When a test project, only need in mixing console program, select corresponding test event and start, the mode of connection will be switched to respective item by order a-b box by mixing console, alien frequencies power supply automatic boosting, to the magnitude of voltage being applicable to test, is then measured main frame and is automatically performed voltage and current measurement.After being completed, the automatic step-down zero of alien frequencies power supply also safe standby.Whole test process realizes remote automation operation, avoids loaded down with trivial details manual operation process, makes traditional test need the time of half an hour to narrow down to a few minutes, thus reduce working strength and improve work efficiency.Meanwhile, because operating personnel only need to operate on mixing console, away from the power circuit of band high pressure and testing apparatus, the generation of personal injury accident can effectively can be avoided.
Accompanying drawing explanation
Fig. 1 is Electrical Power Line Parameter testing apparatus and positive sequence impedance wiring schematic diagram thereof.
Fig. 2 and Fig. 3 is the structural representation of the present embodiment mixing console.
Fig. 4 is the structural representation of the present embodiment a-b box driving circuit.
Fig. 5 is the structural representation of the present embodiment seven road a-b box driving circuit.
Fig. 6 is the structural representation of the present embodiment a-b box state detection circuit.
Fig. 7 is the structural representation of the present embodiment serial communication interface circuit.
Fig. 8 is the mixing console of the present embodiment and the structural representation of power test equipment connection.
Fig. 9 is the test flow chart of the present embodiment test positive sequence impedance project.
Embodiment
Be described further below with reference to accompanying drawing 1 to 9 pair of the utility model, but protection domain of the present utility model should do not limited with this.For convenience of description and understand the technical solution of the utility model, below illustrate that the orientation that the noun of locality used all is shown with accompanying drawing is as the criterion.
As shown in Figures 2 and 3, the mixing console of the present embodiment comprises microprocessor, serial communication interface circuit, a-b box driving circuit, a-b box state detection circuit, display, key-press module and storer, microprocessor is by serial communication interface circuit respectively with alien frequencies power supply with measures main frame and be electrically connected and produce control signal and control alien frequencies power supply and measure the operational motion of main frame, and microprocessor is electrically connected by a-b box driving circuit and a-b box and produces the switching of measure the item circuit in drive singal control a-b box.Microprocessor is connected with display, key-press module, storer respectively; Described microprocessor is by a-b box state detection circuit and a-b box electrical connection, and a-b box state detection circuit detects the operating state of a-b box and forms status signal input microprocessor.Wherein, microprocessor adopts model to be the digital signal processor of DSP2812.
As shown in Figure 4, a-b box driving circuit comprises two resistance and the first photoisolator OPT1, and the one end on the former limit of the first photoisolator OPT1 is connected with the first resistance R1, and the other end on former limit is connected with microprocessor; One end of the secondary of the first photoisolator OPT1 is connected with the second resistance R2 and a-b box respectively, the other end ground connection of secondary.Wherein, mixing console is configured with seven road a-b box driving circuits, as shown in Figure 5.The a-b box drive circuit module that Tu5Wei seven road a-b box driving circuit is formed by connecting.
As shown in Figure 6, a-b box state detection circuit comprises the 3rd resistance R3, the 4th resistance R4 and the second photoisolator OPT2, and the one end on the former limit of the second photoisolator OPT2 is connected with the 3rd resistance R3, and the other end on former limit is connected with a-b box; One end of the secondary of the second photoisolator OPT2 is connected with the 4th resistance R4 and microprocessor respectively, the other end ground connection of secondary.
As shown in Figure 3, the general input/output port GPIO of the present embodiment DSP microprocessor has seven pins of GPIOF6 ~ GPIOF13, correspondingly, each pin in each GPIOF6 ~ GPIOF13 is connected with a road a-b box driving circuit, and as the driving signal input of a-b box driving circuit.Therefore, the present embodiment drives 7 kinds of a-b boxs to be in the commutation circuit of different test event by the a-b box driving circuit on 7 tunnels.Therefore, it can support that at least 7 kinds are tested the mode of connection, can meet the needs of multiple test event in the test of current Electrical Power Line Parameter.Be worth reminding, " a-b box " is herein a kind of in testing, also automatically connects not collinear testing apparatus by the driving of intelligent control device according to the different of test event (as positive sequence impedance, zero sequence impedance etc.).
As shown in Figure 4, a-b box driving circuit be used for from mixing console externally a-b box send control command, complete the different modes of connection with the difference according to test event.The present embodiment with the pin GPIOF6 output drive signal of DSP microprocessor for example further illustrates the principle of work of a-b box driving circuit.Be worth reminding, this example carries complete machine under the project prerequisite of test positive sequence impedance.Mixing console sends steering order from pin GPIOF6, low level representative performs the positive sequence impedance test mode of connection, after the first photoisolator OPT1 realizes high_voltage isolation, drive JX1 terminal output low level, thus the action controlling a-b box tests wiring to complete positive sequence impedance.
Whether as shown in Figure 6, a-b box state detection circuit returns the operating state of a-b box from a-b box for detecting, normal with the action detecting a-b box.The operating state of a-b box is from the input of ZT terminal, and after the second photoisolator OPT2, enter DSP microprocessor from pin GPIOF13, DSP microprocessor to this signal analysis and judgement, thus knows the state of a-b box.
As shown in Figure 3, the present embodiment DSP microprocessor also has SCITXDA, SCIRXDA, SCITXDB and SCIRXDB tetra-serial communication pins.
The serial communication interface circuit of mixing console as shown in Figure 7, wherein, U1 is serial communication level transferring chip, and its signal be responsible between 4 serial communication pin SCITXDA, SCIRXDA, SCITXDB and SCIRXDB of DSP2812 and the communication port of external test facility (alien frequencies power supply, measurement main frame) connects and level conversion.Wherein pin SCITXDA is output into TXD1 signal from the 11 pin inputs of U1 from 14 pin, for sending steering order from mixing console to alien frequencies power supply, and RXD1 signal is output into SCIRXDA signal from 12 pin, for returning response message from alien frequencies power supply to mixing console from the 13 pin inputs of U1.SCITXDB is output into TXD2 signal from the 10 pin inputs of U1 from 7 pin, for sending steering order from mixing console to measurement main frame, RXD2 signal is output into SCIRXDB signal from 9 pin, for returning response message from measurement main frame to mixing console from the 8 pin inputs of U1.
As shown in Figure 8, the mixing console of the utility model design needs and existing power test equipment, such as comprises alien frequencies power supply and measures main frame, and various testing apparatuss newly developed, such as a-b box, with the use of.Mixing console plays the effect of integrated management, coordination and control at test process.
During concrete enforcement, tester first will according to carefully connecting the wire shown in Fig. 7 and Fig. 8 and checking correct, and then tester can away from the power circuit of band high pressure and testing apparatus, the keyboard of operated from a distance mixing console.As shown in Figure 9, when a test project, first tester selects corresponding test event and starts in mixing console program, such as selects positive sequence impedance test event.Now mixing console will be given an order by pin GPIOF6 and be made a-b box that the mode of connection is switched to positive sequence impedance test event, by TXD1 and RXD1 interface command alien frequencies power supply automatic boosting to the magnitude of voltage being applicable to positive sequence impedance test event, then measure main frame by TXD2 and RXD2 interface command and automatically perform voltage and current measurement.After being completed, mixing console is given an order to alien frequencies power supply again, makes the automatic step-down zero of alien frequencies power supply.Mixing console safe standby.
In sum, tester only needs to operate mixing console at test process, and no longer needs passes alien frequencies power supply and measure the equipment such as main frame, realizes remote automation operation, reduces working strength and improve work efficiency.Meanwhile, due in operating personnel's test process away from the band power circuit of high pressure and testing apparatus, effectively can avoid the generation of personal injury accident.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also change above-mentioned embodiment and revise.Therefore, the utility model is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although employ some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (6)
1. the mixing console for Electrical Power Line Parameter test, described mixing console can integrated management and control alien frequencies power supply, measure main frame and a-b box, it is characterized in that: comprise microprocessor, serial communication interface circuit and a-b box driving circuit, microprocessor by serial communication interface circuit respectively with alien frequencies power supply with measures main frame and be electrically connected and produce control signal and control alien frequencies power supply and measure the operational motion of main frame, microprocessor is electrically connected by a-b box driving circuit and a-b box and produces the switching that drive singal controls measure the item circuit in a-b box.
2. according to claim 1 a kind of for Electrical Power Line Parameter test mixing console, it is characterized in that: described a-b box driving circuit comprises two resistance and the first photoisolator, the one end on the former limit of the first photoisolator is connected with the first resistance, and the other end on former limit is connected with microprocessor; One end of the secondary of the first photoisolator is connected with the second resistance and a-b box respectively, the other end ground connection of secondary.
3. according to claim 2 a kind of for Electrical Power Line Parameter test mixing console, it is characterized in that: described mixing console configures seven road a-b box driving circuits.
4. according to claim 1 a kind of for Electrical Power Line Parameter test mixing console, it is characterized in that: described mixing console also comprises a-b box state detection circuit, display, key-press module and storer, microprocessor is connected with display, key-press module, storer respectively; Described microprocessor is by a-b box state detection circuit and a-b box electrical connection, and a-b box state detection circuit detects the operating state of a-b box and forms status signal input microprocessor.
5. according to claim 4 a kind of for Electrical Power Line Parameter test mixing console, it is characterized in that: described a-b box state detection circuit comprises the 3rd resistance, the 4th resistance and the second photoisolator, the one end on the former limit of the second photoisolator is connected with the 3rd resistance, and the other end on former limit is connected with a-b box; One end of the secondary of the second photoisolator is connected with the 4th resistance and microprocessor respectively, the other end ground connection of secondary.
6. a kind of mixing console for Electrical Power Line Parameter test according to claim 1, is characterized in that: described microprocessor adopts model to be the digital signal processor of DSP2812.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520727388.5U CN204945279U (en) | 2015-09-18 | 2015-09-18 | A kind of mixing console for Electrical Power Line Parameter test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520727388.5U CN204945279U (en) | 2015-09-18 | 2015-09-18 | A kind of mixing console for Electrical Power Line Parameter test |
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| CN204945279U true CN204945279U (en) | 2016-01-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546836A (en) * | 2015-09-18 | 2017-03-29 | 山东天庆电力设备有限公司 | A kind of mixing console for Electrical Power Line Parameter test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546836A (en) * | 2015-09-18 | 2017-03-29 | 山东天庆电力设备有限公司 | A kind of mixing console for Electrical Power Line Parameter test |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170525 Address after: 264000, No. 5, building 503, block C, range rover, 588 East Main Street, Laishan District, Yantai, Shandong Patentee after: Shandong Connaught Electric Technology Co., Ltd. Address before: Exhibit high tech Zone of Ji'nan City, Shandong province 250000 in Shangri-La, 1-2313 Patentee before: SHANDONG TENKING ELECTRIC EQUIPMENT CO., LTD. |
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| TR01 | Transfer of patent right |