CN202794404U - Factory-leaving routine power checking test platform of medium-pressure high-power converter - Google Patents
Factory-leaving routine power checking test platform of medium-pressure high-power converter Download PDFInfo
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- CN202794404U CN202794404U CN 201220488942 CN201220488942U CN202794404U CN 202794404 U CN202794404 U CN 202794404U CN 201220488942 CN201220488942 CN 201220488942 CN 201220488942 U CN201220488942 U CN 201220488942U CN 202794404 U CN202794404 U CN 202794404U
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Abstract
The utility model discloses a factory-leaving routine power checking test platform of a medium-pressure high-power converter. The factory-leaving routine power checking test platform comprises a power supply which is sequentially connected with a rectification power supply input cabinet through a pressure regulator and a rectifier transformer, the rectification power supply input cabinet is connected with two circuits of output, a first circuit of output comprises a first tested converter and a first resistance load connected with the first tested converter, and a second circuit of output comprises a rectification power supply cabinet, a second tested converter and a second resistance load which are sequentially connected. The factory-leaving routine power checking test platform of the medium-pressure high-power converter can basically meet factory-leaving routine power checking test requirements of two-level and three-level medium-pressure high-power converters of 3AC3300V and 3AC4160 at two voltage classes, and simultaneously factory-leaving routine power checking test requirements of an inverter can be met.
Description
Technical field
The utility model relates to current transformer, particularly a kind of middle pressure high-power converter customary power certification test platform that dispatches from the factory.
Background technology
Power converter is a kind of power equipment based on power semiconductor, the break-make by the control power semiconductor device change voltage, electric current, frequency and (or) the controlling electric energy equipment of one or several parameter in the power supply number of phases.The AC power that industrial-frequency alternating current (50Hz or 60Hz) is transformed into various frequencies is exported, to realize the control to motor speed-changing operation, wherein control system is finished the Variable flow control to main circuit, rectification circuit is transformed into direct current with alternating current, direct-flow intermediate circuit carries out Ping Bo and filtering to the output of rectification circuit, and inverter circuit becomes direct current another mistake into alternating current.
Along with the widespread use of high-power power converter spare, middle pressure high-power converter is more and more wider in the application in the fields such as high voltage power transmission, industrial transmission, industrial unsteady flow, and its kind is also more and more.The middle pressure high-power converter of 10 MW class is very common in the industry at present.Current transformer dispatches from the factory, and customary power examination is divided into the current power examination and voltage power is examined two contents.Whether current power examination mainly is the large electric current (generally being rated current) to the logical certain hour of main circuit of current transformer, stable and whether the temperature rise situation is stable in the electric current output that passes in the large current work situation in order to verify current transformer (particularly high-power converter).The voltage power examination mainly is the high voltage (generally being rated voltage) to the logical certain hour of main circuit of current transformer, in order to verifying that current transformer (particularly high-power converter) is passing to the withstand voltage ability of each power component of current transformer in the high voltage operation situation, and the electrical insulation properties between each parts of interiors of products etc.
In order to ensure stablizing of quality and performance behind the product export, manufacturer generally all needs current transformer is carried out electric current and the voltage power examination test of certain hour; And examine the mode of building of test macro to be not quite similar for the customary power of current transformer on the market.Trace sth. to its source, greatly reason is because current transformer power examination test power consumption large (that have even large with the rated power of current transformer etc.), if adopt the resistance sense load as high-power examination load (have or even full power examination), the waste of its thermal value and electric energy is well imagined; Motor is to towing back to feedback load checking system back-to-back if adopt, and it builds the costliness suitable with maintenance cost.
At present general back-to-back to dragging the customary power certification test system (as shown in Figure 1) of motor load Main Problems to be in the industry: test macro is built the cost costliness, maintenance and maintenance is complicated, cost is high and versatility is poor.
Summary of the invention
Technical problem to be solved in the utility model is, and is not enough for prior art, and a kind of middle pressure high-power converter customary power certification test platform that dispatches from the factory is provided, and puies forward the high pressure high-power converter customary power test system versatility of dispatching from the factory, energy-saving and emission-reduction.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of middle pressure high-power converter customary power certification test platform that dispatches from the factory, comprise power supply, described power supply is connected with rectifier power source input cabinet by pressure regulator, rectifier transformer successively, described rectifier power source input cabinet is connected with two-way output, and first via output comprises the first tested current transformer and the first resistance sense load that is connected with the first tested current transformer; The the second tunnel output comprises rectifier power source cabinet, the switching in parallel of rectifier power source output string cabinet, the second tested current transformer and the second resistance sense load that connects successively.
As preferred version, be connected to the pressure regulator incoming line cabinet between described power supply and the pressure regulator, be connected to the first rectifier transformer incoming line cabinet between described pressure regulator and the rectifier transformer, described pressure regulator is in parallel with the second rectifier transformer incoming line cabinet, described the second rectifier transformer incoming line cabinet input end and access power supply and the pressure regulator incoming line cabinet between, described the second rectifier transformer incoming line cabinet output terminal also accesses between the first rectifier transformer incoming line cabinet and the rectifier transformer.
As preferred version, be connected to inductance between described rectifier power source input cabinet and the first tested current transformer; Described rectifier power source cabinet is connected to rectifier power source output string switching in parallel cabinet with the second tested current transformer.
As preferred version, described the first resistance sense load is the little electric current AC load of high impedance; Described the second resistance sense load is the large electric current AC load of little impedance.
Compared with prior art, the beneficial effect that the utility model has is: the utility model is according to operating characteristic and the check requirements of current transformer, guaranteeing test mass, promote testing efficiency, saving under the prerequisite of equipment investment cost, improved pilot system versatility, energy-saving and emission-reduction, reduced potential safety hazard; The middle pressure high-power converter of the present utility model customary power certification test platform that dispatches from the factory basically can satisfy in all two level and three level and to press the customary power examination of dispatching from the factory of high-power converter testing requirement, equally also can satisfy the customary power examination of dispatching from the factory of inverter testing requirement.
Description of drawings
Fig. 1 is that existing back-to-back motor is to dragging load test checking system topological structure synoptic diagram; (a) back-to-back motor to dragging load test checking system topological structure synoptic diagram one; (b) back-to-back motor to dragging load test checking system topological structure synoptic diagram two;
Fig. 2 is the utility model one example structure synoptic diagram;
Fig. 3 is the utility model one embodiment rectifier power source cabinet circuit theory diagrams;
Fig. 4 is the utility model one embodiment rectifier power source output string cabinet circuit theory diagrams that switch in parallel;
Fig. 5 is the utility model one embodiment first via output topological structure sketch;
Fig. 6 is the utility model one embodiment the second tunnel output topological structure sketch;
Fig. 7 is the utility model one embodiment high pressure three-phase alternating-current supply circuit system schematic diagram;
Fig. 8 is that the utility model one embodiment net is pressed the incoming line schematic diagram.
Embodiment
As shown in Figure 2, the utility model one embodiment comprises power supply, described power supply is connected with rectifier power source input cabinet by pressure regulator, rectifier transformer successively, described rectifier power source input cabinet is connected with two-way output, and first via output comprises the first tested current transformer and the first resistance sense load that is connected with the first tested current transformer; The the second tunnel output comprises rectifier power source cabinet, the switching in parallel of rectifier power source output string cabinet, the second tested current transformer and the second resistance sense load that connects successively.
Be connected to the pressure regulator incoming line cabinet between described power supply and the pressure regulator, be connected to the first rectifier transformer incoming line cabinet between described pressure regulator and the rectifier transformer, described pressure regulator is in parallel with the second rectifier transformer incoming line cabinet, described the second rectifier transformer incoming line cabinet input end and access power supply and the pressure regulator incoming line cabinet between, described the second rectifier transformer incoming line cabinet output terminal also accesses between the first rectifier transformer incoming line cabinet and the rectifier transformer.
Pressure regulator incoming line cabinet, the first rectifier transformer incoming line cabinet, the second rectifier transformer incoming line cabinet are commercially available High-Voltage Electrical Appliances cabinet.
The second rectifier transformer incoming line cabinet is rectifier transformer 10KV incoming line cabinet.
Be connected to successively inductance, power supply output connection cabinet between described rectifier power source input cabinet and the first tested current transformer, all be connected to the load wiring cabinet between the first tested current transformer and the first resistance sense load, the second tested current transformer and the second resistance sense load; The in parallel switching between cabinet, the second tested current transformer of rectifier power source output string is connected to power supply output connection cabinet.
Described the first resistance sense load is the little electric current AC load of high impedance; Described the second resistance sense load is the large electric current AC load of little impedance.
Rectifier power source cabinet circuit theory diagrams of the present utility model are fixed with two rectification modules that structure is identical as shown in Figure 3 in the rectifier power source cabinet; Described rectification module comprises a protection module and a three-phase commutation bridge, and the output terminal of described rectifier transformer is connected with three-phase commutation bridge by contactor; Described protection module comprises the voltage dependent resistor (VDR) of fuse and three Y-connections, between described fuse access contactor and the three-phase commutation bridge, the voltage dependent resistor (VDR) of described three Y-connections and access fuse and three-phase commutation bridge between.
Fig. 4 is the rectifier power source output string cabinet circuit theory diagrams that switch in parallel.Output string switching in parallel cabinet has also carried out inductance (L91) current-sharing design and the safe-discharge design (3KM11,3KM12) under the output operating mode in parallel.
As shown in Figure 5, the utility model first via output electric network source (3AC10KV) output is directly inputted to rectifier transformer (TM2) via the second rectifier transformer incoming line cabinet (G4), in succession process by providing the fixedly industrial-frequency alternating current of three-phase 3A3300V, two gears of 3AC4160V by power supply output connection cabinet (DJX3) to tested current transformer (DUT) by rectifier power source input cabinet (AR1), inlet wire inductance cabinet (L), resistance sense load (RL2) is the little electric current AC load of the high impedance of tested current transformer (DUT) again.
As shown in Figure 6, after the utility model the second tunnel output electric network source (3AC10KV) enters pressure regulator (TM1) and carries out pressure regulation and process via pressure regulator 10KV incoming line cabinet (G5), again by the first rectifier transformer incoming line cabinet (G6), rectifier transformer (TM2), rectifier power source input cabinet (AR1), rectifier power source cabinet (AR2), the rectifier power source output string cabinet (AR3) that switches in parallel, in succession process by providing 12 pulse waves, the 2 level adjustable DC power supplys of DC40～5600V or 6 pulse waves, the 3 level adjustable DCs electricity of DC80～11200V by power supply output connection cabinet (DJX1) to tested current transformer (DUT), resistance sense load (RL1) is the large electric current AC load of little impedance of tested current transformer (DUT).
As shown in Figure 7, the utility model high pressure three-phase alternating current origin system (transformer TM2 adopt an oil cooled transformer.The transformer input end is directly introduced electrical network 3AC10KV power supply (by pressure regulator 10KV incoming line cabinet G5 and rectifier transformer incoming line cabinet G6 the input and output of pressure regulator TM1 being cut off simultaneously) by rectifier transformer 10KV incoming line cabinet (G4), transformer TM2 becomes the fixedly alternating current of two grades of the specified 3AC3300V of being output as, 3AC4160V, then is input to the output that rectifier transformer output gear switch cabinet (AR1) is realized 3AC3300V, two gear alternating voltages of 3AC4160V.
As shown in Figure 8, the utility model net presses incoming line to comprise 10KV High-voltage Incoming Cabinet G1, rectifier transformer 10KV incoming line cabinet G4, pressure regulator incoming line cabinet G5 and rectifier transformer incoming line cabinet G6.
Claims (4)
1. press the high-power converter customary power certification test platform that dispatches from the factory in one kind, comprise power supply, it is characterized in that, described power supply is connected with rectifier power source input cabinet by pressure regulator, rectifier transformer successively, described rectifier power source input cabinet is connected with two-way output, and first via output comprises the first tested current transformer and the first resistance sense load that is connected with the first tested current transformer; The the second tunnel output comprises rectifier power source cabinet, the second tested current transformer and the second resistance sense load that connects successively.
2. the middle pressure high-power converter according to claim 1 customary power certification test platform that dispatches from the factory, it is characterized in that, be connected to the pressure regulator incoming line cabinet between described power supply and the pressure regulator, be connected to the first rectifier transformer incoming line cabinet between described pressure regulator and the rectifier transformer, described pressure regulator is in parallel with the second rectifier transformer incoming line cabinet, described the second rectifier transformer incoming line cabinet input end and access power supply and the pressure regulator incoming line cabinet between, described the second rectifier transformer incoming line cabinet output terminal also accesses between the first rectifier transformer incoming line cabinet and the rectifier transformer.
3. the middle pressure high-power converter according to claim 1 customary power certification test platform that dispatches from the factory is characterized in that, is connected to inductance between described rectifier power source input cabinet and the first tested current transformer; Described rectifier power source cabinet is connected to rectifier power source output string switching in parallel cabinet with the second tested current transformer.
4. the middle pressure high-power converter according to claim 1 customary power certification test platform that dispatches from the factory is characterized in that described the first resistance sense load is the little electric current AC load of high impedance; Described the second resistance sense load is the large electric current AC load of little impedance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220488942 CN202794404U (en) | 2012-09-24 | 2012-09-24 | Factory-leaving routine power checking test platform of medium-pressure high-power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220488942 CN202794404U (en) | 2012-09-24 | 2012-09-24 | Factory-leaving routine power checking test platform of medium-pressure high-power converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202794404U true CN202794404U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220488942 Expired - Fee Related CN202794404U (en) | 2012-09-24 | 2012-09-24 | Factory-leaving routine power checking test platform of medium-pressure high-power converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202794404U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108132397A (en) * | 2017-12-11 | 2018-06-08 | 中车大连机车研究所有限公司 | A kind of test system of current transformer |
-
2012
- 2012-09-24 CN CN 201220488942 patent/CN202794404U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108132397A (en) * | 2017-12-11 | 2018-06-08 | 中车大连机车研究所有限公司 | A kind of test system of current 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: 20130313 Termination date: 20200924 |