CN202931185U - Low voltage power on debugging device applied to high voltage frequency converter - Google Patents
Low voltage power on debugging device applied to high voltage frequency converter Download PDFInfo
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- CN202931185U CN202931185U CN 201220555738 CN201220555738U CN202931185U CN 202931185 U CN202931185 U CN 202931185U CN 201220555738 CN201220555738 CN 201220555738 CN 201220555738 U CN201220555738 U CN 201220555738U CN 202931185 U CN202931185 U CN 202931185U
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Abstract
The utility model discloses a low voltage power on debugging device applied to a high voltage frequency converter. The low voltage power on debugging device applied to the high voltage frequency converter comprises a box body and a low voltage power on debugging circuit which is arranged in the box body. The low voltage power on debugging circuit comprises three first current-limiting resistors, three second current-limiting resistors and a contactor. Each first current-limiting resistor is respectively connected in series with a second current-limiting resistor. The ends, which are not connected with the second current-limiting resistors, of three first current-limiting resistors form first resistor connecting ends. The ends, which are not connected with the first current-limiting resistors, of three second current-limiting resistors form second resistor connecting ends. Three main contacts of the contactor are respectively connected in parallel with three second current-limiting resistors. According to the utility model, the debugging operation of the high voltage frequency converter is safe and economical.
Description
Technical field
The utility model relates to the high voltage converter technical field, refers in particular to a kind of low pressure for high voltage converter debugging apparatus that powers on.
Background technology
High voltage converter is the electric drive product of high value, in general its load is the high-voltage motor in the important process link in factory, do not allow when this situation has determined the operation of high voltage converter bringing onto load and go wrong, bring about great losses to avoid affecting whole process procedure, so high voltage converter must be reliable to guarantee product by complete function debugging before the bringing onto load operation.
Common high voltage converter debud mode has two kinds, wherein a kind ofly is: disconnect being connected between high voltage converter and motor, directly go up high-tension electricity high voltage converter is carried out every debugging.Though it is simple to operate that this mode has advantages of, shortcoming is that factory's high-tension electricity need frequently suit to coordinate the carrying out of debugging engineering, and is difficult to accomplish frequently suit the high-tension electricity this point at the factory scene, makes this kind debud mode be difficult to obtain actual the field.
Another kind of debud mode is the built-in low pressure debug circuit that powers in high voltage converter, passes into the 380V alternating current and drives high voltage converter no-load running by this low pressure debug circuit that powers on, thereby realize the debugging of high voltage converter.Power in the high voltage converter of debug circuit being built-in with low pressure, the former limit of its phase shifting transformer is connected with electrical network by the high voltage isolator of electric master switch, manual manipulation, secondary 690V three phase windings are connected with power cell, secondary 380V three phase windings and the low pressure debug circuit that powers on is connected, the power on input of debug circuit of this low pressure is connected with the 380V power supply by electric switch, and being parallel with the contactor of controlled work at the power on part current-limiting resistance of debug circuit of this low pressure, with the short circuit of control section current-limiting resistance whether the switch by this contactor.When debugging, at first disconnect electric master switch and the high voltage isolator of high voltage converter, and close switch, the alternating current of 380V accesses secondary 380V three phase windings of phase shifting transformer, makes the secondary 690V three required debugging electric energy in phase winding power output unit of another phase shifting transformer by the electromagnetic induction of phase shifting transformer; When power cell reached the adjustable state, it is closed and with part current-limiting resistance short circuit that contactor receives the instruction of high voltage converter, and make the alternating current of input satisfy commissioning requirements, can continue the debugging work of high voltage converter.though this kind debud mode can solve the existing problem of above-mentioned the first debud mode, but exist following shortcoming: 1, fail safe is not high, during the frequency converter debugging, need make electric master switch and high voltage isolator remain on off-state and electric switch remains on closure state, and frequency converter when operation, need make electric master switch and high voltage isolator remain on closure state and electric switch remains on off-state, like this, it is closed if electric switch breaks down or is interfered, the situation that electric master switch and electric switch close a floodgate simultaneously can occur, thereby the security incident of causing and the heavy losses of property, 2, economy is not good, the low pressure debug circuit that powers on is built among the high voltage converter cabinet, the low pressure debug circuit that powers on all will be set in the electrical system of every high voltage converter, take the inner space of high voltage converter, increased the manufacturing cost of high voltage converter, and, because powering on, low pressure disposes high-power current-limiting resistance in debug circuit, can produce a large amount of heat during its work, bring harmful effect for other devices of frequency converter.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of low pressure for high voltage converter debugging apparatus that powers on, so that the Task of Debugging of high voltage converter has fail safe and the more excellent effect of economy.
for solving the problems of the technologies described above, the utility model adopts technical scheme as described below: a kind of low pressure for high voltage converter debugging apparatus that powers on, it includes a casing and and is arranged at low pressure among the described casing debug circuit that powers on, the described low pressure debug circuit that powers on includes 3 first current-limiting resistances, 3 second current-limiting resistances and a contactor, wherein, each first current-limiting resistance is connected with one second current-limiting resistance separately, the end that 3 first current-limiting resistances are not connected with described the second current-limiting resistance consists of the first resistance link, the end that 3 second current-limiting resistances are not connected with described the first current-limiting resistance consists of the second resistance link, three main contactss of described contactor are in parallel with 3 second current-limiting resistances separately.
Above-mentioned low pressure for the high voltage converter debugging apparatus that powers on, described box house is provided with radiator fan corresponding to described low pressure power on debug circuit place.
Above-mentioned low pressure for the high voltage converter debugging apparatus that powers on, described the first resistance link is arranged on the panel of described casing.
Above-mentioned low pressure for the high voltage converter debugging apparatus that powers on, described the second resistance link is arranged on the panel of described casing.
Above-mentioned low pressure for the high voltage converter debugging apparatus that powers on, the control connection end of described contactor is arranged on the panel of described casing.
Above-mentioned low pressure for the high voltage converter debugging apparatus that powers on, the power connector end of described radiator fan is arranged on the panel of described casing.
Above-mentioned low pressure for the high voltage converter debugging apparatus that powers on, described casing is cuboid, and four jiaos of places respectively are provided with a castor in the bottom.
Above-mentioned low pressure for the high voltage converter debugging apparatus that powers on, the place, bottom of described casing is provided with castor, and top or place, side are provided with handle.
Useful technique effect of the present utility model is: the low pressure debugging apparatus that powers on is independent of high voltage converter, it can be applicable on arbitrary universal high voltage converter, the low pressure that the solves high voltage converter debugging problem that powers on, because the high voltage converter that needs Task of Debugging itself no longer arranges debug circuit, no matter be the situation that does not all exist the former and deputy limit winding of phase shifting transformer to switch on power simultaneously in debug process or in normal course of operation, guaranteed the fail safe of high voltage converter Task of Debugging; In addition, because the low pressure debugging apparatus that powers on is independent of high voltage converter, need not to configure debug circuit in high voltage converter, like this, can reduce the production cost of high voltage converter, need not consider that low pressure powers on debug circuit at frequency converter inner shared space and its heat dissipation problem, has good economy.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the power on structural representation of debug circuit of low pressure of the present utility model.
Embodiment
For making those skilled in the art more be expressly understood technical problem to be solved in the utility model, technical scheme and useful technique effect, below in conjunction with drawings and Examples, the utility model is further elaborated.
the low pressure disclosed in the utility model debugging apparatus that powers on is one to be independent of the equipment of high voltage converter, be mainly used in the use of the debugging of high voltage converter, to promote fail safe and the economy of high voltage converter Task of Debugging, consult Fig. 1 and Fig. 2, this low pressure debugging apparatus that powers on includes a casing 10 and and is arranged at low pressure among this casing 10 debug circuit 20 that powers on, this low pressure debug circuit 20 that powers on includes 3 first current-limiting resistance R1, 3 second current-limiting resistance R2 and a contactor 200, wherein, each first current-limiting resistance R1 connects with one second current-limiting resistance R2 separately, the end that is not connected with the second current-limiting resistance R2 of 3 first current-limiting resistance R1 consists of the first resistance link 201, and the end that is not connected with the first current-limiting resistance R1 of 3 second current-limiting resistance R2 consists of the second resistance link 202, three main contactss of this contactor 200 are in parallel with 3 second current-limiting resistance R2 separately, whether control by this short circuit of the second current-limiting resistance R2.
As shown in Figure 2, preferably, be provided with a radiator fan 30 in this casing 10 inside corresponding to this low pressure power on debug circuit 20 places, the heat that is produced when accelerating to distribute the first current-limiting resistance R1 and the second current-limiting resistance R2 work guarantees the power on normal operation of debugging apparatus of low pressure.
In conjunction with illustrated in figures 1 and 2, power on debug circuit 20 and radiator fan 30 of this low pressure all is arranged among this casing 10, and the control connection end 203 of the first resistance link 201, the second resistance link 202, contactor 200 and the power connector end 300 of radiator fan 30 all are arranged on the panel 100 of this casing 10, debugging apparatus and other equipment such as high voltage converter is connected so that this low pressure powers on.
when using the utility model that high voltage converter is debugged, at first disconnect electric master switch and the high voltage isolator of high voltage converter, and with this low pressure debugging apparatus connecting system that powers on, its connection is specific as follows described, the first resistance link 201 is connected with the 380V AC power by an electric switch, the second resistance link 202 is connected with secondary 380V three phase windings of the phase shifting transformer of high voltage converter, the control connection end 203 of contactor 200 is connected with the control board of high voltage converter, and by the shutoff of this control board control contactor 200, the power connector end 300 of radiator fan 30 is connected with power supply, and work to play the purpose of heat radiation by power drives radiator fan 30.Then, the close switch, this moment, the power on current-limiting resistance of debug circuit 20 of low pressure comprised the first current-limiting resistance R1 and the second current-limiting resistance R2, the alternating current of 380V AC power is inputted secondary 380V three phase windings of phase shifting transformer, makes the secondary 690V three required debugging electric energy in phase winding power output unit of another phase shifting transformer by the electromagnetic induction of phase shifting transformer; When power cell inside reaches adjustable state, contactor 200 is closed and with the second current-limiting resistance R2 short circuit according to the instruction of high voltage converter control board, this moment, the power on current-limiting resistance of debug circuit 20 of low pressure only had the first current-limiting resistance R1, the alternating current of input high voltage converter can satisfy commissioning requirements, can proceed the debugging work of high voltage converter.
Debug complete after, take off the low pressure debugging apparatus that powers on, close high voltage isolator and electric master switch, high voltage converter normally moves.
Consult Fig. 1, this casing 10 is designed to cuboid, and respectively is provided with a castor 101 at place, four jiaos of its bottoms, for move the low pressure debugging apparatus that powers in operating personnel, is convenient to the carrying out of Task of Debugging.Certainly, for the handled easily personnel carry the low pressure debugging apparatus that powers on, casing 10 can be designed to the form of luggage case, namely be provided with castor in an end of casing 10, and bottom or place, side are provided with handle.
In sum, the low pressure disclosed in the utility model debugging apparatus that powers on is independent of high voltage converter, it can be applicable on arbitrary universal high voltage converter, the low pressure that the solves high voltage converter debugging problem that powers on, because the high voltage converter that needs Task of Debugging itself no longer arranges debug circuit, no matter be the situation that does not all exist the former and deputy limit winding of phase shifting transformer to switch on power simultaneously in debug process or in normal course of operation, guaranteed the fail safe of high voltage converter Task of Debugging.In addition, because the low pressure debugging apparatus that powers on is independent of high voltage converter, need not to configure debug circuit in high voltage converter, some supporting low pressure of high voltage converter debugging apparatus that powers on can satisfy the debugging needs, like this, can reduce the production cost of high voltage converter, need not consider that low pressure powers on debug circuit at frequency converter inner shared space and its heat dissipation problem, has good economy.
The above is only preferred embodiment of the present utility model, but not the utility model is done any pro forma restriction.Those skilled in the art can impose the various changes that are equal to and improvement on the basis of above-described embodiment, all equivalent variations of doing in the claim scope or modification are within all should falling into protection range of the present utility model.
Claims (8)
1. a low pressure that is used for high voltage converter debugging apparatus that powers on, it is characterized in that: the described low pressure debugging apparatus that powers on includes a casing (10) and and is arranged at low pressure among described casing (10) debug circuit (20) that powers on, the described low pressure debug circuit (20) that powers on includes 3 first current-limiting resistances (R1), 3 second current-limiting resistances (R2) and a contactor (200), wherein, each first current-limiting resistance (R1) is connected with one second current-limiting resistance (R2) separately, the end that 3 first current-limiting resistances (R1) are not connected with described the second current-limiting resistance (R2) consists of the first resistance link (201), the end that 3 second current-limiting resistances (R2) are not connected with described the first current-limiting resistance (R1) consists of the second resistance link (202), three main contactss of described contactor (200) are in parallel with 3 second current-limiting resistances (R2) separately.
2. the low pressure for the high voltage converter as claimed in claim 1 debugging apparatus that powers on is characterized in that: described casing (10) is inner locates to be provided with radiator fan (30) corresponding to the described low pressure debug circuit (20) that powers on.
3. the low pressure for the high voltage converter as claimed in claim 1 debugging apparatus that powers on, it is characterized in that: described the first resistance link (201) is arranged on the panel (100) of described casing (10).
4. the low pressure for the high voltage converter as claimed in claim 1 debugging apparatus that powers on, it is characterized in that: described the second resistance link (202) is arranged on the panel (100) of described casing (10).
5. the low pressure for the high voltage converter as claimed in claim 1 debugging apparatus that powers on, it is characterized in that: the control connection end (203) of described contactor (200) is arranged on the panel (100) of described casing (10).
6. the low pressure for the high voltage converter as claimed in claim 2 debugging apparatus that powers on, it is characterized in that: the power connector end (300) of described radiator fan (30) is arranged on the panel (100) of described casing (10).
7. the low pressure for the high voltage converter as claimed in claim 1 debugging apparatus that powers on, it is characterized in that: described casing (10) is cuboid, and respectively is provided with a castor (101) at place, four jiaos of its bottoms.
8. the low pressure for the high voltage converter as claimed in claim 1 debugging apparatus that powers on, it is characterized in that: the place, bottom of described casing (10) is provided with castor, and top or place, side are provided with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220555738 CN202931185U (en) | 2012-10-26 | 2012-10-26 | Low voltage power on debugging device applied to high voltage frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220555738 CN202931185U (en) | 2012-10-26 | 2012-10-26 | Low voltage power on debugging device applied to high voltage frequency converter |
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| Publication Number | Publication Date |
|---|---|
| CN202931185U true CN202931185U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220555738 Expired - Fee Related CN202931185U (en) | 2012-10-26 | 2012-10-26 | Low voltage power on debugging device applied to high voltage frequency converter |
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| Country | Link |
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| CN (1) | CN202931185U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777105A (en) * | 2014-02-26 | 2014-05-07 | 天津二十冶建设有限公司 | Variable frequency drive debugging method |
-
2012
- 2012-10-26 CN CN 201220555738 patent/CN202931185U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777105A (en) * | 2014-02-26 | 2014-05-07 | 天津二十冶建设有限公司 | Variable frequency drive debugging method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20201026 |
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| CF01 | Termination of patent right due to non-payment of annual fee |