CN202586742U - Power supply system for frequency voltage stability control device - Google Patents
Power supply system for frequency voltage stability control device Download PDFInfo
- Publication number
- CN202586742U CN202586742U CN 201220143797 CN201220143797U CN202586742U CN 202586742 U CN202586742 U CN 202586742U CN 201220143797 CN201220143797 CN 201220143797 CN 201220143797 U CN201220143797 U CN 201220143797U CN 202586742 U CN202586742 U CN 202586742U
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- China
- Prior art keywords
- control device
- supply system
- power supply
- voltage
- stability control
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- Expired - Fee Related
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Abstract
The utility model discloses a power supply system for a frequency voltage stability control device. The power supply system comprises two wiring terminals which are connected externally with the positive electrode and the negative electrode of a direct current power supply, a filter circuit and a DC/DC converting circuit, wherein connecting wires are led out from the two wiring terminals respectively and are connected with the input terminals of the filter circuit; the output terminals of the filter circuit are connected with the input terminals of the DC/DC converting circuit; and the DC/DC converting circuit possesses a plurality of voltage output terminals and the voltage output terminals are connected with components in the frequency voltage stability control device respectively. The power supply system has a reasonable and reliable circuit structure, can provide stable working voltages for components inside the frequency voltage stability control device, and thus normal operation of the components are guaranteed, and reliable guarantee is provided for the operation of the frequency voltage stability control device.
Description
Technical field
The utility model relates to voltage to frequency stabilization control device field, specifically is a kind of power-supply system of UFV-208A type voltage to frequency stabilization control device.
Background technology
UFV-208A type voltage to frequency stabilization control device is a kind of as the voltage to frequency stabilization control device, has functions such as low frequency judgement, low pressure judgement, overfrequency judgement, overvoltage judgement.UFV-208A type voltage to frequency stabilization control device basic model is mainly used in low-frequency low-voltage load shedding, also can be used for low frequency off-the-line and low pressure off-the-line, can measure two busbar voltages simultaneously.
At present, the operating voltage of each components and parts that existing UFV-208A type voltage to frequency stabilization control device is inner is all inequality, and the power supply of stable operating voltage therefore must outfit can be provided.
The utility model content
The purpose of the utility model provides a kind of power-supply system of voltage to frequency stabilization control device, and each components and parts inner for the voltage to frequency stabilization control device provide stable operating voltage.
The technical scheme of the utility model is following:
A kind of power-supply system of voltage to frequency stabilization control device; Include two terminals, filter circuit and the DC/DC change-over circuit of external direct current power supply both positive and negative polarity respectively; It is characterized in that: draw wiring respectively and insert the input of filter circuit from described two terminals; The output of said filter circuit links to each other with the input of DC/DC change-over circuit, and described DC/DC change-over circuit has a plurality of voltage output ends and inserts each components and parts in the voltage to frequency stabilization control device respectively.
The power-supply system of described voltage to frequency stabilization control device is characterized in that: described DC/DC change-over circuit has+5V ,+12V ,-12V ,+the 24V voltage output end.
The beneficial effect of the utility model:
The utility model circuit structure rationally, reliable, can stable operating voltage be provided for each inner components and parts of voltage to frequency stabilization control device, guaranteed the operate as normal of each components and parts, for the work of voltage to frequency stabilization control device provides reliable guarantee.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Referring to Fig. 1; A kind of power-supply system of voltage to frequency stabilization control device; Include two terminals A, B, filter circuit and the DC/DC change-over circuit of external direct current power supply both positive and negative polarity respectively; Draw wiring respectively and insert the input of filter circuit from two terminals A, B; The output of filter circuit links to each other with the input of DC/DC change-over circuit, and the DC/DC change-over circuit has+5V ,+12V ,-12V ,+voltage output end of 24V and insert each components and parts in the voltage to frequency stabilization control device respectively.
Claims (2)
1. the power-supply system of a voltage to frequency stabilization control device; Include two terminals, filter circuit and the DC/DC change-over circuit of external direct current power supply both positive and negative polarity respectively; It is characterized in that: draw wiring respectively and insert the input of filter circuit from described two terminals; The output of said filter circuit links to each other with the input of DC/DC change-over circuit, and described DC/DC change-over circuit has a plurality of voltage output ends and inserts each components and parts in the voltage to frequency stabilization control device respectively.
2. the power-supply system of voltage to frequency stabilization control device according to claim 1 is characterized in that: described DC/DC change-over circuit has+5V ,+12V ,-12V ,+the 24V voltage output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220143797 CN202586742U (en) | 2012-04-06 | 2012-04-06 | Power supply system for frequency voltage stability control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220143797 CN202586742U (en) | 2012-04-06 | 2012-04-06 | Power supply system for frequency voltage stability control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202586742U true CN202586742U (en) | 2012-12-05 |
Family
ID=47256104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220143797 Expired - Fee Related CN202586742U (en) | 2012-04-06 | 2012-04-06 | Power supply system for frequency voltage stability control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202586742U (en) |
-
2012
- 2012-04-06 CN CN 201220143797 patent/CN202586742U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20130406 |