CN103487617A - Three-phase primary voltage-current through device - Google Patents
Three-phase primary voltage-current through device Download PDFInfo
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- CN103487617A CN103487617A CN201310475625.9A CN201310475625A CN103487617A CN 103487617 A CN103487617 A CN 103487617A CN 201310475625 A CN201310475625 A CN 201310475625A CN 103487617 A CN103487617 A CN 103487617A
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Abstract
The invention relates to a three-phase primary voltage-current through device, and relates to a detection device. The existing test device can not synchronously output three-phase high voltage and three-phase heavy current or accurately verify an operation function and is already unable to meet the current demand. The three-phase primary voltage-current through device comprises a power supply control box, a three-phase integral booster transformer and a split type high-isolation current booster, wherein the power supply control box is provided with a three-phase four-wire power supply input wiring terminal, a grounding terminal, an inlet wire main power supply switch, a voltage input switch, a voltage output voltage regulator, a current input switch, a current output voltage regulator, a voltage output wiring terminal, a current output wiring terminal and a voltage-current monitoring meter. The three-phase primary voltage-current through device disclosed by the invention is unnecessary to disconnect the secondary connected wire, prevents the mistaken restoration and is high in accuracy.
Description
Technical field
The present invention relates to a kind of pick-up unit.
Background technology
The power construction rapid growth, the extensive of transformer station popularized, and treats the reliability of the equipment of putting into operation and have higher requirement before putting into operation, and current test unit can't synchronously be exported three-phase high-voltage and the large electric current of three-phase, and can not accurately verify operation function, can't meet current demand.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is that the prior art scheme is improved and improved, provide three-phase once to lead to pressure and reach once through-flow device, to reach synchronous output three-phase high-voltage and the large electric current of three-phase, and can accurately verify the purpose of operation function.For this reason, the present invention takes following technical scheme.
Three-phase once logical the pressure reaches once through-flow device, it is characterized in that: comprise power controling box, three-phase integrated step-up transformer, split type high isolation current lifting device, described power controling box is provided with the three-phase four-wire power input terminal, earth terminal, the inlet wire total power switch, the voltage input switch, the Voltage-output pressure regulator, the electric current input switch, the electric current output voltage regulator, the Voltage-output terminals, electric current outlet terminal and electric current and voltage monitoring form meter, the three-phase four-wire power input terminal is connected with inlet wire total power switch one end by wire, the inlet wire total power switch other end is connected with an end of voltage input switch and electric current input switch respectively by wire, the other end of voltage input switch is connected with Voltage-output pressure regulator input end by wire, the other end of electric current input switch is connected with the input end of electric current output voltage regulator by wire, the output terminal of Voltage-output pressure regulator is connected with the Voltage-output terminals by wire, the output terminal of electric current output voltage regulator is connected with the electric current outlet terminal by wire, the input end of described three-phase integrated step-up transformer is connected with the Voltage-output terminals, and the input end of described split type high isolation current lifting device is connected with the electric current outlet terminal, the output terminal of three-phase integrated step-up transformer is for being connected with test line, the output terminal of high isolation current lifting device is for being connected with test line.The technical program energy Reality simulation once pressurizes and once adds stream, without disconnecting secondary connection, prevents the mistake recovery, more real mode verifies that whether the wiring of primary equipment, secondary device is correct, whether the current transformer ratio configuration is correct, and the phase sequence connected, polarity etc.; Can also be analyzed with the test data on backstage, complete a whole set of front correlation function and the data test of operation, once successfully lay a solid foundation for putting into operation.
As the further of technique scheme improved and supplement, the present invention also comprises following additional technical feature.
Described electric current and voltage monitoring form meter comprises voltage table, the first reometer that monitors three-phase voltage increasing of measuring three-phase voltage output, the second reometer of measuring the three-phase High-current output.
Described high isolation current lifting device comprises three separate current lifting devices, the first current lifting device is provided with primary coil and secondary coil, number of primary turns is more than the secondary coil number of turn, and the output terminal of secondary coil connects current transformer by the second reometer, to measure the large current value of three-phase.Each current lifting device is comprised of two coils, and its number of turn is more, and the thinner input end of wire diameter is connected to the electric current outlet terminal of control box; The number of turn is less, and the thicker output terminal of wire diameter is connected to test line.
The input end of described three-phase integrated step-up transformer connects the voltage table of three-phase voltage output, the output terminal of three-phase integrated step-up transformer connects the first reometer.
The output terminal of described three-phase integrated step-up transformer is connected with Voltage-output switch one end by wire, the output terminal of described high isolation current lifting device is connected with electric current output switch one end by wire, and the other end of Voltage-output switch is provided with the first current transformer and the voltage transformer (VT) be connected with the first reometer and voltage table; The described electric current output switch other end is provided with the second current transformer.
Beneficial effect: the technical program energy Reality simulation once pressurizes and once adds stream, without disconnecting secondary connection, prevent the mistake recovery, more real mode verifies that whether the wiring of primary equipment, secondary device is correct, whether the current transformer ratio configuration is correct, and the phase sequence connected, polarity etc., efficiency is high, and accuracy is good; Can also be analyzed with the test data on backstage, complete a whole set of front correlation function and the data test of operation, once successfully lay a solid foundation for putting into operation.
The accompanying drawing explanation
Fig. 1 is principle of the invention figure.
Fig. 2 is the structural representation of power controling box of the present invention.
Fig. 3 is that the present invention uses wiring diagram.
In figure: the 1-power controling box; 101-inlet wire total power switch; 102-voltage input switch; 103-Voltage-output pressure regulator; 104-electric current input switch; 105-electric current output voltage regulator; The 106-voltage table; 107-the first reometer; 108-the second reometer; The 2-step-up transformer; The high isolation of 3-current lifting device; 4-the second current transformer; 5-electric current output switch; 6-Voltage-output switch; The 7-voltage transformer (VT).
Embodiment
Below in conjunction with Figure of description, technical scheme of the present invention is described in further detail.
As shown in Figure 1, 2, 3, the present invention includes power controling box 1, three-phase integrated step-up transformer 2, split type high isolation current lifting device 3.Described power controling box 1 is provided with the three-phase four-wire power input terminal, earth terminal, inlet wire total power switch 101, voltage input switch 102, Voltage-output pressure regulator 103, electric current input switch 104, electric current output voltage regulator 105, the Voltage-output terminals, electric current outlet terminal and electric current and voltage monitoring form meter, the three-phase four-wire power input terminal is connected with inlet wire total power switch 101 1 ends by wire, inlet wire total power switch 101 other ends are connected with an end of voltage input switch 102 and electric current input switch 104 respectively by wire, the other end of voltage input switch 102 is connected with Voltage-output pressure regulator 103 input ends by wire, the other end of electric current input switch 104 is connected with the input end of electric current output voltage regulator 105 by wire, the output terminal of Voltage-output pressure regulator 103 is connected with the Voltage-output terminals by wire, the output terminal of electric current output voltage regulator 105 is connected with the electric current outlet terminal by wire, the input end of described three-phase integrated step-up transformer 2 is connected with the Voltage-output terminals, and the input end of described split type high isolation current lifting device 3 is connected with the electric current outlet terminal, the output terminal of three-phase integrated step-up transformer 2 is for being connected with test line, the output terminal of high isolation current lifting device 3 is for being connected with test line.Wherein electric current and voltage monitoring form meter comprises voltage table 106, the first reometer 107 that monitors three-phase voltage increasing of measuring three-phase voltage output, the second reometer 108 of measuring the three-phase High-current output.Described high isolation current lifting device 3 comprises three separate current lifting devices, the first current lifting device is provided with primary coil and secondary coil, number of primary turns is more than the secondary coil number of turn, and the output terminal of secondary coil connects the second current transformer 4 by the second reometer 108, to measure the large current value of three-phase.The output terminal of described three-phase integrated step-up transformer 2 is connected with Voltage-output switch 6 one ends by wire, the output terminal of described high isolation current lifting device 3 is connected with electric current output switch 5 one ends by wire, and the other end of Voltage-output switch 6 is provided with the first current transformer and the voltage transformer (VT) 7 be connected with the first reometer 107 and voltage table 106; Described electric current output switch 5 other ends are provided with the second current transformer 4.
Three-phase shown in above Fig. 1-3 once logical press and once through-flow device be specific embodiments of the invention; substantive distinguishing features of the present invention and progress have been embodied; can be according to actual use needs; under enlightenment of the present invention; it is carried out to the equivalent modifications of the aspects such as shape, structure, all at the row of the protection domain of this programme.
Claims (4)
1. three-phase logical the pressure and through-flow device once once, is characterized in that: comprise power controling box (1), three-phase integrated step-up transformer (2), split type high isolation current lifting device (3), described power controling box (1) is provided with the three-phase four-wire power input terminal, earth terminal, inlet wire total power switch (101), voltage input switch (102), Voltage-output pressure regulator (103), electric current input switch (104), electric current output voltage regulator (105), the Voltage-output terminals, electric current outlet terminal and electric current and voltage monitoring form meter, the three-phase four-wire power input terminal is connected with inlet wire total power switch (101) one ends by wire, inlet wire total power switch (101) other end is connected with an end of electric current input switch (104) with voltage input switch (102) respectively by wire, the other end of voltage input switch (102) is connected with Voltage-output pressure regulator (103) input end by wire, the other end of electric current input switch (104) is connected with the input end of electric current output voltage regulator (105) by wire, the output terminal of Voltage-output pressure regulator (103) is connected with the Voltage-output terminals by wire, the output terminal of electric current output voltage regulator (105) is connected with the electric current outlet terminal by wire, the input end of described three-phase integrated step-up transformer (2) is connected with the Voltage-output terminals, and the input end of described split type high isolation current lifting device (3) is connected with the electric current outlet terminal, the output terminal of three-phase integrated step-up transformer (2) is for being connected with test line, the output terminal of high isolation current lifting device (3) is for being connected with test line.
2. three-phase according to claim 1 logical the pressure and through-flow device once once, it is characterized in that: described electric current and voltage monitoring form meter comprises voltage table (106), the first reometer (107) that monitors three-phase voltage increasing of measuring three-phase voltage output, the second reometer (108) of measuring the three-phase High-current output.
3. three-phase according to claim 2 logical the pressure and through-flow device once once, it is characterized in that: described high isolation current lifting device (3) comprises three separate current lifting devices, the first current lifting device is provided with primary coil and secondary coil, number of primary turns is more than the secondary coil number of turn, and the output terminal of secondary coil connects the second current transformer (4) by the second reometer (108), to measure the large current value of three-phase.
4. three-phase according to claim 3 logical the pressure and through-flow device once once, it is characterized in that: the output terminal of described three-phase integrated step-up transformer (2) is connected with Voltage-output switch (6) one ends by wire, the output terminal of described high isolation current lifting device (3) is connected with electric current output switch (5) one ends by wire, and the other end of Voltage-output switch (6) is provided with the first current transformer and the voltage transformer (VT) (7) be connected with the first reometer (107) and voltage table (106); Described electric current output switch (5) other end is provided with the second current transformer (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310475625.9A CN103487617B (en) | 2013-10-12 | 2013-10-12 | Three-phase once logical pressure and the most through-flow device |
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| CN201310475625.9A CN103487617B (en) | 2013-10-12 | 2013-10-12 | Three-phase once logical pressure and the most through-flow device |
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| CN103487617B CN103487617B (en) | 2016-08-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106405239A (en) * | 2015-07-31 | 2017-02-15 | 国家电网公司 | Phasor measurement method without load |
| CN107037389A (en) * | 2017-03-31 | 2017-08-11 | 西安热工研究院有限公司 | A kind of PT leads to pressure method |
| CN109991515A (en) * | 2019-04-09 | 2019-07-09 | 国网四川省电力公司电力科学研究院 | The method and system of a high current are obtained under a kind of low actual load |
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2013
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| CN201508373U (en) * | 2009-08-27 | 2010-06-16 | 中化二建集团电仪安装工程有限公司 | Three-phase current generator |
| CN202351334U (en) * | 2011-10-17 | 2012-07-25 | 广东华力电气有限公司 | Multifunctional comprehensive testing table |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405239A (en) * | 2015-07-31 | 2017-02-15 | 国家电网公司 | Phasor measurement method without load |
| CN107037389A (en) * | 2017-03-31 | 2017-08-11 | 西安热工研究院有限公司 | A kind of PT leads to pressure method |
| CN109991515A (en) * | 2019-04-09 | 2019-07-09 | 国网四川省电力公司电力科学研究院 | The method and system of a high current are obtained under a kind of low actual load |
| CN109991515B (en) * | 2019-04-09 | 2021-11-30 | 国网四川省电力公司电力科学研究院 | Method and system for acquiring primary large current under low actual load |
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| CN103487617B (en) | 2016-08-17 |
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