CN202206108U - High voltage over-current protective device - Google Patents
High voltage over-current protective device Download PDFInfo
- Publication number
- CN202206108U CN202206108U CN201120308402XU CN201120308402U CN202206108U CN 202206108 U CN202206108 U CN 202206108U CN 201120308402X U CN201120308402X U CN 201120308402XU CN 201120308402 U CN201120308402 U CN 201120308402U CN 202206108 U CN202206108 U CN 202206108U
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- Prior art keywords
- circuit
- high voltage
- current
- protective device
- vacuum switch
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- Expired - Fee Related
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Abstract
Provided is a high voltage over-current protective device, comprising a power supply circuit, a high voltage current sampling circuit, an MCU control circuit, a high voltage vacuum switch, an LED display circuit, and a keyboard circuit, wherein the power supply circuit provides energy for the high voltage over-current protective device; the high voltage line current sampling circuit load collects the working current upon the high voltage line while the MCU circuit analyzes the acquired current and decides whether to switch off the high voltage vacuum switch or not; the LED circuit displays the working current upon the high voltage line; the keyboard circuit sets the maximum working current permitted by the line, with the power supply thereof being a 220V AC power supply; and an AC contactor is arranged between the MCU circuit and the high voltage vacuum switch for driving. The high voltage over-current protective device has the following advantages: the size of the high voltage line protective current can be freely set, thereby being capable of more effectively protecting high voltage breaker devices; reducing the frequency of high voltage line maintenance; and tracking the working current of the detection line during the whole course. Compared with likewise products, the high voltage over-current protective device features advancement in technology, high efficiency, less energy consumption, environmental protection, and energy saving. Particularly, the high voltage over-current protective device is substantially improved in protection performance in the case of over-current. .
Description
Technical field
The utility model relates to a kind of high voltage control electrical equipment, is applied in the high-tension line power supply circuits.
Background technology
In high-voltage electric power system, existing high pressure overcurrent protective device complex structure, and the overcurrent protection performance neither be very desirable.Cause the high-tension line frequent maintenance.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned deficiency a kind of high-pressure and overflowing protective device is provided.
The purpose of the utility model realizes through following technical scheme:
A kind of high-pressure and overflowing protective device comprises power circuit, high-tension current sample circuit, MCU control circuit, high-pressure vacuum switch, LED display circuit and keyboard circuit.Wherein power circuit provides energy for this device; Operating current, the amperometry of MCU circuit to gathering on the high-tension line gathered in the load of high-tension line current sampling circuit; And whether determine the cutoff high vacuum switch; Led circuit shows the operating current on the high-tension line, and keyboard circuit is set the maximum operating currenbt that circuit allows.
Above-mentioned high-pressure and overflowing protective device, its power source features are the 220V AC power.
Above-mentioned high-pressure and overflowing protective device also connects A.C. contactor and drives between MCU element circuit and high-pressure vacuum switch.
Above-mentioned high-pressure and overflowing protective device, said MCU control system is the embedded MCU control system.
Adopt technique scheme, the utility model has following advantage: the high-voltage line protection size of current can freely be set, and more effectively protects the primary cut-out device, reduces the maintenance times of high-tension line, the operating current of all-the-way tracking detection line.Compared with similar products, it has great advance technically, efficient low-consume, and environmental protection and energy saving especially improve a lot aspect the protective value when overcurrent.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model.
Fig. 2 is the circuit theory diagrams of the utility model.
Embodiment
A kind of high-pressure and overflowing protective device as depicted in figs. 1 and 2, it comprises power circuit, high-tension current sample circuit, MCU control circuit, high-pressure vacuum switch, LED display circuit and keyboard circuit.Wherein power circuit provides energy for this device; Operating current, the amperometry of MCU circuit to gathering on the high-tension line gathered in the load of high-tension line current sampling circuit; And whether determine the cutoff high vacuum switch; Led circuit shows the operating current on the high-tension line, and keyboard circuit is set the maximum operating currenbt that circuit allows, and its power source features is the 220V AC power.
The utility model also connects A.C. contactor and drives between MCU element circuit and high-pressure vacuum switch, said MCU control system is the embedded MCU control system.
Claims (4)
1. high-pressure and overflowing protective device; It is characterized in that: comprise power circuit, high-tension current sample circuit, MCU control circuit, high-pressure vacuum switch, LED display circuit and keyboard circuit; Wherein power circuit provides energy for this device; Operating current, the amperometry of MCU circuit to gathering on the high-tension line gathered in the load of high-tension line current sampling circuit; And whether determine the cutoff high vacuum switch, and led circuit shows the operating current on the high-tension line, keyboard circuit is set the maximum operating currenbt that circuit allows.
2. high-pressure and overflowing protective device according to claim 1 is characterized in that: power supply is the 220V AC power.
3. ask 1 described high-pressure and overflowing protective device according to right, it is characterized in that: between MCU element circuit and high-pressure vacuum switch, also connect A.C. contactor and drive.
4. according to claim 1 or 2 or 3 described high-pressure and overflowing protective devices, it is characterized in that: said MCU control system is the embedded MCU control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120308402XU CN202206108U (en) | 2011-08-23 | 2011-08-23 | High voltage over-current protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120308402XU CN202206108U (en) | 2011-08-23 | 2011-08-23 | High voltage over-current protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202206108U true CN202206108U (en) | 2012-04-25 |
Family
ID=45970205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120308402XU Expired - Fee Related CN202206108U (en) | 2011-08-23 | 2011-08-23 | High voltage over-current protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202206108U (en) |
-
2011
- 2011-08-23 CN CN201120308402XU patent/CN202206108U/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: 20120425 Termination date: 20130823 |