CN207339660U - 3-phase dry type AC transformation power supply - Google Patents
3-phase dry type AC transformation power supply Download PDFInfo
- Publication number
- CN207339660U CN207339660U CN201721110811.2U CN201721110811U CN207339660U CN 207339660 U CN207339660 U CN 207339660U CN 201721110811 U CN201721110811 U CN 201721110811U CN 207339660 U CN207339660 U CN 207339660U
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- Prior art keywords
- dry
- type transformer
- protection location
- input
- type
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- Expired - Fee Related
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Abstract
This practicality is related to a kind of 3-phase dry type AC transformation power supply; including dry-type transformer; the front end of dry-type transformer sets input protection location; inputting protection location includes a normally closed remote signalling switch; input voltage, the input current of the front end of input protection location are monitored by electric quantity monitoring unit; and the output voltage of dry-type transformer rear end and circuit residual current, electric quantity monitoring unit also export first control signal to inputting protection location.Pass through the setting of electric quantity monitoring unit; when the fluctuation of input voltage, output voltage exceeds permission operating voltage range and is kept for certain time; or when input current exceedes permission operating current and is kept for certain time; or when there is short circuit or electric leakage with electric line; normally closed remote signalling in input protection location switches off, and dry-type transformer automatically shuts down input power.
Description
Technical field
It the utility model is related to a kind of 3-phase dry type AC transformation power supply.
Background technology
3-phase dry type AC transformation power supply is suitable for interrupted running overload, or emergent accident running overload.It is however, electric
In Force system, 3-phase dry type AC transformation power supply lacks protective device, makes its long-term running overload, and load loss is high, resistance
Reactance voltage is big, and dry-type transformer is in non-economy operating status, therefore should increase measure makes it from long-continued running overload
In spin off.
The content of the invention
The purpose of the utility model is to overcome the defects of the prior art, there is provided one kind has electricity, temperature monitoring and guarantor
Protect the 3-phase dry type AC transformation power supply of off-line function.
To achieve the above object, the utility model uses such a 3-phase dry type AC transformation power supply, the three-phase
Dry type AC transformation power supply includes dry-type transformer, and the front end of the dry-type transformer sets input protection location, described
Input protection location includes a normally closed remote signalling switch, by the defeated of the electric quantity monitoring unit monitoring front end for inputting protection location
Enter voltage, input current, and the output voltage of the dry-type transformer rear end and circuit residual current, electricity prison
Survey unit and also export first control signal to the input protection location.Compared with the prior art, the utility model is beneficial
Effect is embodied in：By the setting of electric quantity monitoring unit, when the fluctuation of input voltage, output voltage is beyond permission operating voltage model
When enclosing and being kept for certain time, the normally closed remote signalling inputted in protection location switches off, dry-type transformer shut-off input power；When
When input current exceedes permission operating current and kept for certain time, the normally closed remote signalling inputted in protection location switches off, and does
Formula transformer automatically shuts down input power.When there is short circuit or electric leakage with electric line, the normally closed remote signalling in protection location is inputted
Switch off, dry-type transformer automatically shuts down input power.
Particularly, the 3-phase dry type AC transformation power supply further includes temperature detecting unit, the temperature detection list
The temperature change of the member monitoring dry-type transformer, the temperature detecting unit are residing according to the dry-type transformer
Temperature range, exports second control signal, the 3rd control signal to the corresponding input protection location, automatic air-cooled respectively
Heat-sink unit, the automatic air-cooled heat-sink unit act on the dry-type transformer.Increase when loading, dry-type transformer
When operating temperature is increased to first interval, automatic air-cooled heat-sink unit is opened；When the operating temperature of dry-type transformer exceedes its pole
When limiting operating temperature, the normally closed remote signalling inputted in protection location switches off, and dry-type transformer automatically shuts down input power.
Particularly, shielded layer is added between the armature winding and secondary windings of the dry-type transformer.Pass through shielded layer
Setting, can substantially reduce dry-type transformer leakage field interference output.
Brief description of the drawings
Fig. 1 is the functional-block diagram of the utility model 3-phase dry type AC transformation power supply.
Embodiment
As shown in Figure 1, a kind of 3-phase dry type AC transformation power supply, 3-phase dry type AC transformation power supply includes dry type transformation
Device, the front end of dry-type transformer set input protection location, and input protection location includes a normally closed remote signalling switch, by electric quantity monitoring
Unit monitoring input protection location front end input voltage, input current, and the output voltage of dry-type transformer rear end with
Circuit residual current, electric quantity monitoring unit also export first control signal to inputting protection location.
3-phase dry type AC transformation power supply further includes temperature detecting unit, and temperature detecting unit monitors the temperature of dry-type transformer
Degree change, residing temperature range of the temperature detecting unit according to dry-type transformer, exports second control signal, the 3rd control respectively
Signal to corresponding input protection location, automatic air-cooled heat-sink unit, automatic air-cooled heat-sink unit acts on dry-type transformer.
Shielded layer is added between the armature winding and secondary windings of dry-type transformer.
Claims (3)
1. a kind of 3-phase dry type AC transformation power supply, the 3-phase dry type AC transformation power supply includes dry-type transformer, it is special
Sign is：The front end of the dry-type transformer sets input protection location, and it is normally closed distant that the input protection location includes one
Letter switch, input voltage, the input current of the front end of the input protection location are monitored by electric quantity monitoring unit, and described
Dry-type transformer rear end output voltage and circuit residual current, the electric quantity monitoring unit also exports first control signal
To the input protection location.
2. 3-phase dry type AC transformation power supply according to claim 1, it is characterised in that：The 3-phase dry type exchange becomes
Voltage source further includes temperature detecting unit, the temperature change of the temperature detecting unit monitoring dry-type transformer, institute
Residing temperature range of the temperature detecting unit stated according to the dry-type transformer, exports second control signal, the 3rd respectively
Control signal to the corresponding input protection location, automatic air-cooled heat-sink unit, the automatic air-cooled heat-sink unit is made
For the dry-type transformer.
3. 3-phase dry type AC transformation power supply according to claim 1 or 2, it is characterised in that：The dry-type transformer
Armature winding and secondary windings between add shielded layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721110811.2U CN207339660U (en) | 2017-08-26 | 2017-08-26 | 3-phase dry type AC transformation power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721110811.2U CN207339660U (en) | 2017-08-26 | 2017-08-26 | 3-phase dry type AC transformation power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207339660U true CN207339660U (en) | 2018-05-08 |
Family
ID=62371921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721110811.2U Expired - Fee Related CN207339660U (en) | 2017-08-26 | 2017-08-26 | 3-phase dry type AC transformation power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207339660U (en) |
-
2017
- 2017-08-26 CN CN201721110811.2U patent/CN207339660U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 325600 No. 201 Wei16 Road, Yueqing Economic Development Zone, Yueqing City, Zhejiang Province Patentee after: HONLE GROUP Co.,Ltd. Address before: 325604 Xiangyang Industrial Zone, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: HONLE ELECTRIC Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |