CN203037796U - on-line fault detection apparatus - Google Patents
on-line fault detection apparatus Download PDFInfo
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- CN203037796U CN203037796U CN2013200132321U CN201320013232U CN203037796U CN 203037796 U CN203037796 U CN 203037796U CN 2013200132321 U CN2013200132321 U CN 2013200132321U CN 201320013232 U CN201320013232 U CN 201320013232U CN 203037796 U CN203037796 U CN 203037796U
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- circuit
- power carrier
- failure detector
- output
- online failure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The utility model provides an electric power carrier wave on-line fault detection apparatus, and the apparatus comprises a central processor, a sampling circuit, a zero line detection circuit, an alarm output circuit, a power source circuit, a button circuit, a display circuit, a communication circuit and an automatic constant temperature device, wherein the automatic constant temperature device comprises a low temperature detection module and a temperature control module, the communication circuit employs an electric power carrier wave communication module comprising A phase, B phase or C phase transmission, the central processor comprises an AD sampling circuit, a comparison module and an output module, the sampling circuit comprises a current transformer, a voltage transducer and a TRMS measuring chip, the current transformer and the voltage transducer are respectively connected with the TRMS measuring chip, and the TRMS measuring chip is connected with the AD sampling circuit. The apparatus directly employs the electric power carrier wave communication method, so a special-purpose line needs not to be laid; and the apparatus can be used in any place having a power line, so resource waste and manpower waste for repaving a power line are prevented.
Description
Technical field
The utility model is specifically related to the online failure detector of a kind of electrical network.
Background technology
The online failure detector of present electrical network is based on traditional 485 interfaces more and network carries out communication, needs rewiring to realize communication when being installed in the networking of electrical network on-line detector from far-off regions and backstage, and the secondary wiring causes quantities big, the manpower requirement height.
The utility model content
In order to solve the deficiency of above-mentioned technology, the purpose of this utility model provides the online failure detector of a kind of power carrier, and it has solved the deficiency that the communication of electrical network on-line detector realization in the past needs secondary to connect up.
The technical scheme that its technical matters that solves the utility model adopts is:
The online failure detector of a kind of power carrier, it comprises central processing unit, be connected with central processing unit, be used for gathering electric current, the sample circuit of voltage data, zero line testing circuit for detection of the zero line state, the warning output circuit that is used for output alarm signal, be used for providing the power circuit of power supply, the display circuit that is used for the key circuit of input fiducial value and is used for showing, the online failure detector of described power carrier also is provided with for the communicating circuit of communication and for the automatic thermostatic device of regulating temperature, described automatic thermostatic device comprises for detection of the low temperature detection module of temperature and for the temperature control modules of controlling temperature, described communicating circuit adopts the power carrier communication module, described power carrier communication module comprises that A transmits mutually, B transmits mutually or C transmits mutually, described central processing unit comprises with sample circuit and being connected, be used for gathering the AD sample circuit of sample circuit and zero line testing circuit output signal, be used for comparison module that the signal of AD sample circuit collection and fiducial value that key circuit is imported are compared and be connected with the warning output circuit, the output module that the output alarm as a result that is used for drawing according to comparison module instructs, described sample circuit comprises for the current transformer of gathering electric current, the TRMS measurement chip that is used for gathering the voltage sensor of voltage and is used for obtaining real effective, described current transformer is measured chip with TRMS respectively with voltage sensor and is connected, and described TRMS measures chip and is connected with the AD sample circuit.
The online failure detector of described power carrier is provided with the high-speed memory for the storage data, and described high-speed memory is connected with central processing unit.
The online failure detector of described power carrier be provided with for the time of realizing real time record to the time module, the described time to the time module adopt the design of perpetual calendar real-time clock.
Described warning output circuit comprises the over voltage alarm circuit for the output over-voltage protection signal; the undervoltage warning circuit that is used for output under-voltage protection signal; the overcurrent warning circuit that is used for the output overcurrent guard signal; the undercurrent warning circuit that is used for output undercurrent protection signal; the three-phase imbalance warning circuit that is used for output three-phase imbalance signal; be used for the neutral line break warning circuit of output neutral line break signal and the break alarm circuit that is used for the arbitrary phase cut-off signal of output; described neutral line break warning circuit comprises the neutral line break relay, and described break alarm circuit comprises wire-break relay.
4 road DI non electrical quantity input circuits that the online failure detector of described power carrier is provided with 2 road DI circuit-breaker status input circuits that detect for circuit-breaker status and is used for external other signal input, described DI circuit-breaker status input circuit and DI non electrical quantity input circuit are connected with central processing unit by isolating change-over circuit respectively.
The online failure detector of described power carrier is provided with the anti-rolling power detection circuit for the anti-rolling electro-detection of the online failure detector of power carrier, and described anti-rolling power detection circuit is connected with central processing unit.
The online failure detector of described power carrier is provided with the reset control circuit for the online failure detector reset control of power carrier.
Described display circuit comprises LED code display.
The online failure detector of described power carrier is provided with as preliminary data information transmission communication, is used for the reliability of on-the-spot detection and decision maker, stability and the RS485 communication interface that detects.
The beneficial effects of the utility model are that the utility model directly adopts the power carrier communication mode, can not need to lay private line, as long as there is the place of power circuit just can use, has avoided laying again the wasting of resources and the manpower waste of power circuit.
Description of drawings
Accompanying drawing 1 is logical organization synoptic diagram of the present utility model.
Accompanying drawing 2 is logical schematic of central processing unit of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified:
Referring to Fig. 1 and Fig. 2, the utility model comprises central processing unit 12, be connected with central processing unit 12, be used for gathering electric current, the sample circuit of voltage data, zero line testing circuit 4 for detection of the zero line state, the warning output circuit 15 that is used for output alarm signal, be used for providing the power circuit 7 of power supply, the display circuit that is used for the key circuit 8 of input fiducial value and is used for showing, the online failure detector of described power carrier also is provided with for the communicating circuit of communication and for the automatic thermostatic device of regulating temperature, described automatic thermostatic device comprises for detection of the low temperature detection module 5 of temperature and for the temperature control modules 6 of controlling temperature, described communicating circuit adopts power carrier communication module 14, described central processing unit 12 comprises with sample circuit and being connected, be used for gathering the AD sample circuit 121 of sample circuit and zero line testing circuit 4 output signals, be used for comparison module 122 that the signal that AD sample circuit 121 is gathered and the fiducial value that key circuit 8 is imported compare and be connected with warning output circuit 123, the output module 123 that the output alarm as a result that is used for drawing according to comparison module 122 instructs, described sample circuit comprises for the current transformer 1 of gathering electric current, the TRMS measurement chip 3 that is used for gathering the voltage sensor 2 of voltage and is used for obtaining real effective, described current transformer 1 is measured chip 3 with TRMS respectively with voltage sensor 2 and is connected, and described TRMS measures chip 3 and is connected with AD sample circuit 121.
Described warning output circuit 15 comprises the over voltage alarm circuit for the output over-voltage protection signal; the undervoltage warning circuit that is used for output under-voltage protection signal; the overcurrent warning circuit that is used for the output overcurrent guard signal; the undercurrent warning circuit that is used for output undercurrent protection signal; the three-phase imbalance warning circuit that is used for output three-phase imbalance signal; be used for the neutral line break warning circuit of output neutral line break signal and the break alarm circuit that is used for the arbitrary phase cut-off signal of output; described neutral line break warning circuit comprises the neutral line break relay, and described break alarm circuit comprises wire-break relay.
4 road DI non electrical quantity input circuits 10 that the online failure detector of described power carrier is provided with 2 road DI circuit-breaker status input circuits 9 that detect for circuit-breaker status and is used for external other signal input, described DI circuit-breaker status input circuit 9 and DI non electrical quantity input circuit 10 are connected with central processing unit 12 by isolating change-over circuit 11 respectively.Realize the monitoring of isolating switch on off operating mode by DI circuit-breaker status input circuit 9, and can the on off operating mode of current isolating switch be transferred to the backstage by power carrier communication module 14, DI non electrical quantity input circuit 10 then can be used for the collection of non electrical quantity information, and the information that collects is transferred to the backstage by power carrier communication module 14, realize the effect of remote monitoring.
Electric current and voltage data that the utility model is gathered three-phase electricity respectively by current transformer 1 and the voltage sensor 2 of sample circuit, and the data that collect are sent to TRMS measure chip 3 and carry out true rms measurement, can obtain three-phase current, voltage, active power, reactive power, applied power, power factor, frequency, information such as electric energy, and the information that the obtains AD sample circuit 121 by central processing unit 12 is input to comparison module, described AD sample circuit 121 adopts 24 high-precision A converters, measurement data precision height, good stability.By key circuit 8 input fiducial values to comparison module 122 as setting value, information and the setting value of 121 inputs of AD sample circuit are compared, in three-phase voltage, any phase voltage or three-phase voltage surpass setting value constantly, output module 123 output overvoltage alerting signals, make the over voltage alarm circuit working, the background synchronization warning of glimmering, prompting managerial personnel; In three-phase voltage, when any phase voltage or three-phase voltage were lower than setting value, output module 123 output undervoltage warning signals made undervoltage warning circuit work, and managerial personnel are pointed out in background synchronization warnings of glimmering; In three-phase current, when any phase current or three-phase current were higher than setting value, output module 123 output overcurrent alerting signals made the work of overcurrent warning circuit, the background synchronization warning of glimmering, prompting managerial personnel; In three-phase current, when any phase current or three-phase current are lower than setting value, output module 123 output undercurrent alerting signals make the work of undercurrent warning circuit, the background synchronization warning of glimmering, the prompting managerial personnel, when the three-phase current unbalance degree surpassed setting value, output module 123 output three-phase imbalance signals made the work of three-phase imbalance warning circuit, the background synchronization warning of glimmering, the prompting managerial personnel; In the three-phase and four-line network, when detecting the disconnection of N line, and behind the time-delay 5S, output module 123 output neutral line break signals make the neutral line break actuating of relay; When A B C three-phase fire one, any disconnects mutually, and behind the time-delay 5S, the arbitrary phase cut-off signal of output module 123 outputs makes the actuating of relay of PT breaking protection.
The utility model is realized data transmission by power carrier communication module 14 simultaneously, directly utilize electric power networks to carry out remote transmission to the backstage, by this power carrier communication module 14, can be with the voltage of each residential quarter, the whole city, the electric current operating position is monitored, monitoring range is wide, and can utilize existing electrical network, and without rewiring, on intown backstage, can see the electricity consumption real-time condition of each unit building of the inside, city intuitively, make things convenient for the grid company maintenance, the particular location that grid company can be found out problem points fast by the backstage goes to investigate one by one and need not spend great amount of manpower.
Power carrier communication module 14 comprises the signal coupling unit, simulation amplifying unit and AD conversion unit, by power carrier communication module 14 when the enterprising line data of line of electric force sends, by central processing unit 12 data that store in the high-speed memory 19 are read, by AD conversion unit data-switching is become simulating signal then, and by the simulation amplifying unit modulate, amplify, and enter power transmission lines by the signal coupling unit, the realization data are directly transmitted by power transmission lines, by power line carrier, PLC module 14, can not need to lay private line, as long as there is the place of power circuit just can use, the wasting of resources and the manpower waste of power circuit have been avoided laying again.
Described power carrier communication module comprises that A transmits mutually, and B transmits mutually or C transmits mutually, can carry out data transmission mutually by A phase, B phase or C respectively, and each does not disturb between the transmission mutually mutually, guarantees the stability of transmission data.
The online failure detector of described power carrier is provided with the high-speed memory 19 for the storage data, and described high-speed memory 19 is connected with central processing unit 12.
The online failure detector of described power carrier be provided with for the time of realizing real time record to the time module 16, the described time to the time module 16 adopt the design of perpetual calendar real-time clocks.Adopt the design of perpetual calendar real-time clock, can record the failure message of nearest 100 generations, reach logouts such as operation, power failure.Annual whole day real time record is accurate to 10ms writing time.High-speed memory 19 can be used for store recording simultaneously, effectively guarantees to call the record of checking in the past, has avoided losing of data.
By being provided for regulating the automatic thermostatic device of temperature, described automatic thermostatic device comprises for detection of the low temperature detection module 5 of temperature and for the temperature control modules 6 of controlling temperature, detect current temperature by low temperature detection module 6, when temperature is lower than preset value, temperature control modules 6 is started working, the serviceability temperature that guarantees this device remains on normal condition, can guarantee ultralow temperature work for a long time.
The online failure detector of described power carrier is provided with the anti-rolling power detection circuit 18 for the anti-rolling electro-detection of the online failure detector of power carrier, and described anti-rolling power detection circuit 18 is connected with central processing unit 12.By anti-rolling power detection circuit 18 is set, avoid this device when power fluctuation is big, to break down.
The online failure detector of described power carrier is provided with the reset control circuit 17 for the device reset control.The state that is used for the current device of monitoring can also be used for the alarm condition of this device is resetted, and needing to have avoided manpower to go to recover the deficiency of the alarm condition of this device in the past.
Described display circuit comprises LED code display 13.Except adopting neutral line break relay and PT breaking protection relay output alarm, all the other failure messages all adopt the carrier data code to upload.Failure message has, the underfrequency signal, and power factor is crossed low signal, the underpower signal, the too high signal of power, the form by code shows, can save the storage area, convenient record more information.
The online failure detector of described power carrier is provided with as preliminary data information transmission communication, the reliability that is used for on-the-spot detection and decision maker, stability and the RS485 communication interface 20 that detects, this device adopts power carrier communication module 14, and the while is optional dress RS485 communication interface 20 also, realizes the communication based on the RS485 agreement, it is fast to possess transfer rate, stability is high, highly versatile, characteristics such as multiple transport protocols compatibility.
Embodiment should not be considered as restriction of the present utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection domain of the present utility model.
Claims (9)
1. online failure detector of power carrier, it comprises central processing unit (12), be connected with central processing unit (12), be used for gathering electric current, the sample circuit of voltage data, zero line testing circuit (4) for detection of the zero line state, the warning output circuit (15) that is used for output alarm signal, be used for providing the power circuit (7) of power supply, the display circuit that is used for the key circuit (8) of input fiducial value and is used for showing, it is characterized in that: the online failure detector of described power carrier also is provided with for the communicating circuit of communication and for the automatic thermostatic device of regulating temperature, described automatic thermostatic device comprises for detection of the low temperature detection module (5) of temperature and for the temperature control modules (6) of controlling temperature, described communicating circuit adopts power carrier communication module (13), described power carrier communication module (14) comprises that A transmits mutually, B transmits mutually or C transmits mutually, described central processing unit (12) comprises with sample circuit and being connected, be used for gathering the AD sample circuit (121) of sample circuit and zero line testing circuit (4) output signal, be used for comparison module (122) that the signal that AD sample circuit (121) is gathered and the fiducial value that key circuit (8) is imported compare and be connected with warning output circuit (15), the output module (123) that the output alarm as a result that is used for drawing according to comparison module (122) instructs, described sample circuit comprises for the current transformer (1) of gathering electric current, the TRMS measurement chip (3) that is used for gathering the voltage sensor (2) of voltage and is used for obtaining real effective, described current transformer (1) is measured chip (3) with TRMS respectively with voltage sensor (2) and is connected, and described TRMS measures chip (3) and is connected with AD sample circuit (121).
2. the online failure detector of power carrier according to claim 1, it is characterized in that, the online failure detector of described power carrier is provided with the high-speed memory (19) for the storage data, and described high-speed memory (19) is connected with central processing unit (12).
3. the online failure detector of power carrier according to claim 1, it is characterized in that, the online failure detector of described power carrier be provided with for the time of realizing real time record to the time module (16), the described time to the time module (16) adopt the design of perpetual calendar real-time clock.
4. the online failure detector of power carrier according to claim 1; it is characterized in that; described warning output circuit (15) comprises the over voltage alarm circuit for the output over-voltage protection signal; the undervoltage warning circuit that is used for output under-voltage protection signal; the overcurrent warning circuit that is used for the output overcurrent guard signal; the undercurrent warning circuit that is used for output undercurrent protection signal; the three-phase imbalance warning circuit that is used for output three-phase imbalance signal; be used for the neutral line break warning circuit of output neutral line break signal and the break alarm circuit that is used for the arbitrary phase cut-off signal of output; described neutral line break warning circuit comprises the neutral line break relay, and described break alarm circuit comprises wire-break relay.
5. the online failure detector of power carrier according to claim 1, it is characterized in that, 4 road DI non electrical quantity input circuits (10) that the online failure detector of described power carrier is provided with 2 road DI circuit-breaker status input circuits (9) that detect for circuit-breaker status and is used for external other signal input, described DI circuit-breaker status input circuit (9) and DI non electrical quantity input circuit (10) are connected with central processing unit (12) by isolating change-over circuit (11) respectively.
6. the online failure detector of power carrier according to claim 1, it is characterized in that, the online failure detector of described power carrier is provided with the anti-rolling power detection circuit (18) for the anti-rolling electro-detection of the online failure detector of power carrier, and described anti-rolling power detection circuit (18) is connected with central processing unit (12).
7. the online failure detector of power carrier according to claim 1 is characterized in that, the online failure detector of described power carrier is provided with the reset control circuit (17) for the online failure detector reset control of power carrier.
8. the online failure detector of power carrier according to claim 1 is characterized in that, described display circuit comprises LED code display (13).
9. the online failure detector of power carrier according to claim 1, it is characterized in that, the online failure detector of described power carrier is provided with as preliminary data information transmission communication, the reliability that is used for on-the-spot detection and decision maker, stability and the RS485 communication interface (20) that detects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200132321U CN203037796U (en) | 2013-01-11 | 2013-01-11 | on-line fault detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200132321U CN203037796U (en) | 2013-01-11 | 2013-01-11 | on-line fault detection apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN203037796U true CN203037796U (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200132321U Expired - Lifetime CN203037796U (en) | 2013-01-11 | 2013-01-11 | on-line fault detection apparatus |
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| CN (1) | CN203037796U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091602A (en) * | 2013-01-11 | 2013-05-08 | 浙江华健电子科技有限公司 | Power line carrier wave online fault detection device |
| CN105425110A (en) * | 2015-12-14 | 2016-03-23 | 许昌许继昌南通信设备有限公司 | Quick override trip fault positioning method based on power line carrier technology |
-
2013
- 2013-01-11 CN CN2013200132321U patent/CN203037796U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091602A (en) * | 2013-01-11 | 2013-05-08 | 浙江华健电子科技有限公司 | Power line carrier wave online fault detection device |
| CN105425110A (en) * | 2015-12-14 | 2016-03-23 | 许昌许继昌南通信设备有限公司 | Quick override trip fault positioning method based on power line carrier technology |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160628 Address after: 337000 Jiangxi city of Pingxiang province Chishan Industrial Park Patentee after: JIANGXI HJATIS POWER INDUSTRY Co.,Ltd. Address before: 325604, Jetta road 84, Liushi Town, Wenzhou, Zhejiang, Yueqing Patentee before: ZHEJIANG HUAJIAN ELECTRONIC TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |