CN204706940U - A kind of passive Self-power protective device of powering with USB interface - Google Patents
A kind of passive Self-power protective device of powering with USB interface Download PDFInfo
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- CN204706940U CN204706940U CN201520313689.3U CN201520313689U CN204706940U CN 204706940 U CN204706940 U CN 204706940U CN 201520313689 U CN201520313689 U CN 201520313689U CN 204706940 U CN204706940 U CN 204706940U
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- usb interface
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Abstract
The utility model discloses a kind of passive Self-power protective device of powering with USB interface, it is characterized in that, the outlet module, communication module, human-computer interface module, power module, of ac acquisition module and the switching value acquisition module that comprise central processing module, be connected respectively with described central processing module; Current supply circuit is provided with in described USB interface loop; Described current supply circuit is in series with diode.The beneficial effect that the utility model reaches: the 1. requirement of this device to work on the spot power supply has selecting property of plurality of optional, solves traditional Self-power protective device to the unicity of work on the spot power requirement, restrictive technical problem; 2. at the scene in cabinet when power-off, this device can utilize preposition USB interface to access outside portable power source and power to device, facilitates field adjustable, definite value of adjusting, checks dependent event record.Thus effectively reduce the cost that traditional ring main unit uses protective device, simplify workload.
Description
Technical field
The utility model relates to a kind of passive Self-power protective device of powering with USB interface, belongs to electric system protection device technical field.
Background technology
Under the social background of economic technology fast development, the new technology of various electric power system is also in continuous development, and electric power network technique is also more and more intelligent, the inexorable trend that intelligent grid will be electric power network technique development.The technology such as communication, computer, automation also will obtain application extensively and profoundly in electrical network, and organically blend with conventional electric power technology and be applied in modern smart electric grid system.
Passive Self-power protective device is mainly applied to tranformer protection, the route protection of modern smart electric grid system, is exclusively used in the switch cubicle protection of below 35KV.Be a gamut digital protection device that can perform defencive function, function such as band Long-distance Control, measurement of electric parameter, automation etc., meets the current and following needs to power transformation and power distribution station automation, control and protection.There is the phase overcurrent protection of multifrequency nature curve, zero-sequencedirectional protection and the direct trip avoidance function of external connector, can protect distribution transformer, circuit, bus etc.
The passive Self-power protective device occurred in the market is all monistic to the requirement of working power; substantially be all normally run from the inner CT power taking of ring main unit to meet device; in this case just there is a drawback; in cabinet when power-off; passive Self-power protective device also just cannot complete CT power taking, and device also just cannot work on.So the work to take power of passive Self-power protective device just has certain limitation, carries out field adjustable, checks the work such as dependent event record, can not complete if want when switch cubicle power-off to passive Self-power protective device.
Also occurring some passive Self-power protective devices in the market except being also furnished with outside access direct voltage source by CT power taking supplies device to work when switch cubicle power-off, but this just needs each table apparatus to be equipped with a direct voltage source, and at the scene when power-off, be difficult to the power supply of AC220V to supply direct voltage source work, although the situation lower device that this scheme can meet switch cubicle power-off to a certain extent normally works, but the restriction of the power supply by on-the-spot AC220V, not only increase cost, increase workload, the governing factor of AC220V power supply is also restricted.
Utility model content
For solving the deficiencies in the prior art, the purpose of this utility model be to provide a kind of can implement device to the passive Self-power protective device of powering with USB interface of the selecting property of plurality of optional that working power requires.
In order to realize above-mentioned target, the utility model adopts following technical scheme:
A kind of passive Self-power protective device of powering with USB interface, it is characterized in that, the outlet module, communication module, human-computer interface module, power module, of ac acquisition module and the switching value acquisition module that comprise central processing module, be connected respectively with described central processing module; Described power module is also connected with DC input voitage loop, USB interface loop and described of ac acquisition module; Current supply circuit is provided with in described USB interface loop; Described current supply circuit is in series with diode.
Aforesaid a kind of passive Self-power protective device of powering with USB interface, is characterized in that, described of ac acquisition module is by the power taking from power module of CT way to take power.
Aforesaid a kind of passive Self-power protective device of powering with USB interface, it is characterized in that, when described DC input voitage loop is provided with trip protection loop and operates for maintenance test, Injection Current carries out the splicing ear of function test.
Aforesaid a kind of passive Self-power protective device of powering with USB interface, is characterized in that, described outlet module comprises four group relay remote control output modules, one group of trip active output module and one group of alarm signal output module.
The beneficial effect that the utility model reaches: the 1. requirement of this device to work on the spot power supply has selecting property of plurality of optional, solves traditional Self-power protective device to the unicity of work on the spot power requirement, restrictive technical problem; 2. at the scene in cabinet when power-off, this device can utilize preposition USB interface to access outside portable power source and power to device, facilitates field adjustable, definite value of adjusting, checks dependent event record.Thus effectively reduce the cost that traditional ring main unit uses protective device, simplify workload; 3. filled up the technological gap in passive this field of Self-power protective device also do not occurred in the market, this technology of my company has initiative, frontier nature, practicality.
Accompanying drawing explanation
Fig. 1 is the structural representation of this device;
Fig. 2 is the panel schematic diagram of this device.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection range of the present utility model with this.
A kind of passive Self-power protective device of powering with USB interface that the utility model relates to; as shown in Figure 1, the outlet module, communication module, human-computer interface module, power module, of ac acquisition module and the switching value acquisition module that comprise central processing module, be connected respectively with central processing module.Wherein, power module is connected with DC input voitage loop, USB interface loop and of ac acquisition module.
The low-power microprocessor process that central processing module adopts high integration, bus not go out chip from the analog signal of current transformer and switching value digital signal, by the output of digital logical operation control device.Microprocessor processes current measurement value through the impact of removing transient state variable and calculates the necessary value of execution defencive function simultaneously, determines the electric measurement parameter effective value from device parameter instantaneous value.
Master chip adopts DSP56F807E, has single cycle 16 × 16 parallel-by-bit MAC, three internal address bus, an outer address bus, four internal data buses and an external data bus, and 4-pin multichannel inputs, and ADC and PWM module can synchronous workings.On a single die, combine the disposal ability of DSP and the function of single-chip microcomputer, ancillary equipment also creates a very cost-effective solution flexibly.
In USB interface loop, be provided with current supply circuit, USB interface can be connected with outside portable power source powers, and outside only needs one can reach the portable power source exporting DC5V and namely normally run for device by USB interface access power supply.The USB interface of such as computer can meet the requirement of powering to device.Series connection anti-locking apparatus of diode is also located when using USB to power to device reverse charging in USB interface loop.Such structure solves power-off in cabinet and the scene technical problem that do not have the situation lower device of AC220V power supply also can normally work; facilitate field adjustable, definite value of adjusting, check dependent event record; thus effectively reduce the cost that traditional ring main unit uses protective device, simplify workload.
Of ac acquisition module is by the power taking from power module of CT way to take power.
The collection of switching value acquisition module mainly 24V switching value, comprises the Gas Signal of transformer, overtemperature alarm signal, point position of circuit breaker, co-bit signal.
Communication module device is furnished with RS-485 communication interface, can carry out Long-distance Control.Standard communication protocol is MODBUS, but other agreements also can realize.And the communications protocol opened is provided to user, conveniently realize SCADA function.
When DC input voitage loop is provided with trip protection loop and operates for maintenance test, Injection Current carries out the splicing ear of function test.What the present embodiment adopted is the DC input voitage loop with 36V-72V, in cabinet when power-off, access direct voltage can be selected to supply device work.
Outlet module comprises four group relay remote control output modules, one group of trip active output module and one group of alarm signal output module.
Human-computer interface module adopts hommization panel designs; configure full chinese liquid crystal display device; operate each menu page by level, can monitor the various data of device collection and various event according to menu prompt, record, directly can carry out the operation such as parameter modification, protective debugging to device.
Device panel is configured with USB interface, can be connected with outside portable power source and powers.Inking device " RUN ", " alarm ", " tripping operation ", " jumping position ", " co-bit ", " fault " lamp, operating personnel can understand power work state, the running status of device, the running status etc. of communication intuitively; This device also configures seven touch keys " involution ", " cancellation ", " determination ", " ∧ ", " ∨ ", " < ", " > ".Operating personnel operate device by button.Meanwhile, be equipped with event recorder and be used for the action message that storage protection function performs, whole number of times and the various Operation system setting of operation are also recorded, and power down not obliterated data; Address, menu-driven interface provide the instantaneous measure of each phase current, zero-sequence current, and these values are all accessed by PORT COM.
In plant running protection, this device is provided with fast tripping protection, time-limit quick break protection, specified time overcurrent protection, inverse time current protection, zero sequence excess current protection, inverse time lag zero-sequencedirectional protection, overheat protector, outside trip protection etc.
This device achieves the selecting property of plurality of optional that device requires working power.When being energized in cabinet, work can be carried out by CT power taking; Power-off in cabinet, when there is an AC220V power supply at scene, can utilize 36V-72V DC input voitage to power to device; Power-off in cabinet and scene do not have an AC220V power supply, can directly utilize preposition USB interface to access outside portable power source to power to device, outside needs a portable power source that can reach output DC5V namely normally to run for device by USB interface access power supply in this case.The USB interface of such as computer can meet the requirement of powering to device, facilitates field adjustable, definite value of adjusting, checks dependent event record.This supply power mode is convenient and swift, and effectively can reduce the cost that traditional ring main unit uses protective device, simplifies workload.And device can automatically switch to these three kinds of ways to take power, the DC input voitage-CT power taking-USB interface that is chosen as of priority is powered.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and distortion, these improve and distortion also should be considered as protection range of the present utility model.
Claims (4)
1. a passive Self-power protective device of powering with USB interface, it is characterized in that, the outlet module, communication module, human-computer interface module, power module, of ac acquisition module and the switching value acquisition module that comprise central processing module, be connected respectively with described central processing module; Described power module is also connected with DC input voitage loop, USB interface loop and described of ac acquisition module; Current supply circuit is provided with in described USB interface loop; Described current supply circuit is in series with diode.
2. a kind of passive Self-power protective device of powering with USB interface according to claim 1, is characterized in that, described of ac acquisition module is by the power taking from power module of CT way to take power.
3. a kind of passive Self-power protective device of powering with USB interface according to claim 1; it is characterized in that, when described DC input voitage loop is provided with trip protection loop and operates for maintenance test, Injection Current carries out the splicing ear of function test.
4. a kind of passive Self-power protective device of powering with USB interface according to claim 1, is characterized in that, described outlet module comprises four group relay remote control output modules, one group of trip active output module and one group of alarm signal output module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313689.3U CN204706940U (en) | 2015-05-15 | 2015-05-15 | A kind of passive Self-power protective device of powering with USB interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313689.3U CN204706940U (en) | 2015-05-15 | 2015-05-15 | A kind of passive Self-power protective device of powering with USB interface |
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| Publication Number | Publication Date |
|---|---|
| CN204706940U true CN204706940U (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520313689.3U Expired - Fee Related CN204706940U (en) | 2015-05-15 | 2015-05-15 | A kind of passive Self-power protective device of powering with USB interface |
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| Country | Link |
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| CN (1) | CN204706940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787358A (en) * | 2019-01-18 | 2019-05-21 | 南京深科博业电气股份有限公司 | Self-powered intelligent comprehensive protection location based on Micro USB |
-
2015
- 2015-05-15 CN CN201520313689.3U patent/CN204706940U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787358A (en) * | 2019-01-18 | 2019-05-21 | 南京深科博业电气股份有限公司 | Self-powered intelligent comprehensive protection location based on Micro USB |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210028, N105, building A42, 199 East shogunate Road, Gulou District, Jiangsu, Nanjing Patentee after: Nanjing Zhongkai Optoelectronics Technology Co., Ltd. Address before: 210028, N105, building A42, 199 East shogunate Road, Gulou District, Jiangsu, Nanjing Patentee before: NANJING ZHONGKAI PHOTOELECTRIC TECHNOLOGY CO., LTD. |
|
| CB03 | Change of inventor or designer information |
Inventor after: Li Xingbin Inventor after: Xu Degao Inventor after: Tan Longjian Inventor after: Wang Yao Inventor after: Qiao Xingjin Inventor after: Zhu Xuping Inventor after: Wang Yanyan Inventor before: Li Xingbin Inventor before: Xu Degao Inventor before: Tan Longjian Inventor before: Wang Yao Inventor before: Qiao Xingjin |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170815 Address after: Shogun East Gulou District of Nanjing city of Jiangsu Province, No. 199 210028 Co-patentee after: Nanjing Institute of Industry Technology Patentee after: Nanjing Zhongkai Optoelectronics Technology Co., Ltd. Address before: 210028, N105, building A42, 199 East shogunate Road, Gulou District, Jiangsu, Nanjing Patentee before: Nanjing Zhongkai Optoelectronics Technology Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 Termination date: 20200515 |
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| CF01 | Termination of patent right due to non-payment of annual fee |