CN204154793U - For the novel voltage pick-up unit of motor train unit - Google Patents
For the novel voltage pick-up unit of motor train unit Download PDFInfo
- Publication number
- CN204154793U CN204154793U CN201420705124.5U CN201420705124U CN204154793U CN 204154793 U CN204154793 U CN 204154793U CN 201420705124 U CN201420705124 U CN 201420705124U CN 204154793 U CN204154793 U CN 204154793U
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- unit
- motor train
- voltage
- transformers
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Abstract
The utility model relates to a kind of voltage check device, is specially the novel voltage pick-up unit for motor train unit.Solve voltage check device complex structure motor train unit gathering auxiliary power module output voltage, the problem that price is high.Be made up of three single transformers; The armature winding of three single transformers is star connection, and secondary winding is star connection; Each earth terminal of three single transformers is interconnected the earth terminal as device; The non-loaded transformation ratio of described single transformer: V1/V2=100/1, frequency: 45 ~ 55Hz, elementary and shielding between dielectric strength: 3kV, secondary and shielding between dielectric strength: 1.5kV.Voltage check device described in the utility model is made up of three single transformers, and the preferred technical parameter of single transformer, achieve the production domesticization of product, cost achieves and significantly reduces.
Description
Technical field
The utility model relates to a kind of voltage check device, is specially the novel voltage pick-up unit for motor train unit.
Background technology
On CRH5 EMUs, the three-phase 400VAC of auxiliary power module output need being gathered by voltage check device or voltage sensing device, by reading the waveform of the voltage signal (reducing to 4V) of this collection, the control and protection of subsidiary loop can be realized.
At present, motor train unit is Hall element, Phototube Coupling voltage sensor, electric isolution voltage sensor etc. for what gather auxiliary power module output voltage.These devices or sensor are that foreign well-known enterprise is produced, and its complex structure, price is high.
Summary of the invention
The utility model solves voltage check device complex structure motor train unit gathering auxiliary power module output voltage, the problem that price is high, provides a kind of novel voltage pick-up unit for motor train unit.
The utility model adopts following technical scheme to realize: for the novel voltage pick-up unit of motor train unit, be made up of three single transformers; The armature winding of three single transformers is star connection, and secondary winding is star connection; Each earth terminal of three single transformers is interconnected the earth terminal as device; The non-loaded transformation ratio of described single transformer: V1/V2=100/1, frequency: 45 ~ 55Hz, elementary and shielding between dielectric strength (50Hz-60s): 3kV, secondary and shielding between dielectric strength (50Hz-60s): 1.5kV.During use, the armature winding of each single transformer is connected with the output terminal of the auxiliary power module in motor train unit, and the output terminal of three single transformers is exactly the voltage signal that voltage check device gathers.
Voltage check device described in the utility model is made up of three single transformers, and the preferred technical parameter of single transformer, achieve the production domesticization of product, cost achieves and significantly reduces.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
For the novel voltage pick-up unit of motor train unit, be made up of three single transformers; The armature winding of three single transformers is star connection, and secondary winding is star connection; Each earth terminal of three single transformers is interconnected the earth terminal as device; The non-loaded transformation ratio of described single transformer: V1/V2=100/1, frequency: 45 ~ 55Hz, elementary and shielding between dielectric strength (50Hz-60s): 3kV, secondary and shielding between dielectric strength (50Hz-60s): 1.5kV.
The determination of the transformer technology parameter of voltage detecting plate:
Non-loaded transformation ratio: V1/V2=100/1
Rated voltage: 3VA
With the elementary specified effective value be connected: 900VAC
The specified effective value of link voltage: 400VAC
Frequency: 45 ~ 55Hz
Accuracy class: 1
Elementary and shielding between dielectric strength (50Hz-60s): 3kV
Secondary and shielding between dielectric strength (50Hz-60s): 1.5kV.
Claims (1)
1. for a novel voltage pick-up unit for motor train unit, it is characterized in that, be made up of three single transformers; The armature winding of three single transformers is star connection, and secondary winding is star connection; Each earth terminal of three single transformers is interconnected the earth terminal as device; The non-loaded transformation ratio of described single transformer: V1/V2=100/1, frequency: 45 ~ 55Hz, elementary and shielding between dielectric strength: 3kV, secondary and shielding between dielectric strength: 1.5kV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420705124.5U CN204154793U (en) | 2014-11-22 | 2014-11-22 | For the novel voltage pick-up unit of motor train unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420705124.5U CN204154793U (en) | 2014-11-22 | 2014-11-22 | For the novel voltage pick-up unit of motor train unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204154793U true CN204154793U (en) | 2015-02-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420705124.5U Expired - Fee Related CN204154793U (en) | 2014-11-22 | 2014-11-22 | For the novel voltage pick-up unit of motor train unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204154793U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330610A (en) * | 2014-11-22 | 2015-02-04 | 永济新时速电机电器有限责任公司 | Novel voltage detecting device for motor train unit |
-
2014
- 2014-11-22 CN CN201420705124.5U patent/CN204154793U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330610A (en) * | 2014-11-22 | 2015-02-04 | 永济新时速电机电器有限责任公司 | Novel voltage detecting device for motor train unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 044500 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Patentee after: CRRC YONGJI ELECTRIC CO., LTD. Address before: 044500 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Patentee before: Yongji Xinshisu Motor Electrical Appliance Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20191122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |