CN205103330U - Portable fault oscillograph of electrified installation - Google Patents
Portable fault oscillograph of electrified installation Download PDFInfo
- Publication number
- CN205103330U CN205103330U CN201520811594.4U CN201520811594U CN205103330U CN 205103330 U CN205103330 U CN 205103330U CN 201520811594 U CN201520811594 U CN 201520811594U CN 205103330 U CN205103330 U CN 205103330U
- Authority
- CN
- China
- Prior art keywords
- plug
- signal
- unit
- current
- adsp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009434 installation Methods 0.000 title claims abstract description 15
- 238000002955 isolation Methods 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims abstract description 4
- 230000009466 transformation Effects 0.000 claims abstract 2
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000008054 signal transmission Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 230000005039 memory span Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Recording Measured Values (AREA)
Abstract
The utility model relates to a portable fault oscillograph of electrified installation, its system architecture includes independent source of power, the sensor plug -in components, the switching value, GPS to the time, ADSP plug -in components, CPU plug -in components and temperature humidity transducer module, independent source of power provides specified mains voltage for each plug -in components, the sensor plug -in components are the inside signal that can receive of wave recording instrument with voltage and current transformation, realize the electrified loop current signal of gathering, the switching value signal of electric power system input is received to the switching value, carries out input -output isolation, formation safety switch signal to the switching value signal, GPS to the time adopt hardware pulse and IGIR -B sign indicating number to the time mode realization wave recording instrument and GPS clock synchronization, ADSP plug -in components receiving mold plans voltage signal and analog current signal, and receive switch measures the safety switch signal that provides, the record wave number certificate that the ADSP plug -in components sent is received to the CPU plug -in components, accomplishes the storage, communication, analysis of record wave number certificate etc..
Description
Technical field
This patent relates to the fault oscillograph of electric system, the portable fault oscillograph of particularly a kind of charged installation.
Background technology
Current transformer station 10kV route protection record ripple does not all access independent fault oscillograph; and there are a lot of line protective devices and do not possess record wave energy; or transferring of record ripple needs to be transferred by serial ports connection notebook computer; but the UNICOM of serial ports exists certain probability, can not ensure that waveform transfers certain success.Adopt portable fault oscillograph all to need have a power failure installation and the dismounting that has a power failure at present, require that more and more higher present situation is inconsistent with current power supply reliability.
The meaning studying the feasibility of the charged installation of portable fault oscillograph is just, if can realize, portable fault oscillograph is charged, safe, installation and removal easily and efficiently, then can transfer waveform timely and conveniently whenever necessary, analyze physical fault situation, search reason and Problems existing, to solve the problem of distribution more quickly and accurately, promote analysis level and the actual motion reliability of distribution.
Utility model content
The purpose of this utility model is the technology proposing to change existing portable failure wave-recording apparatus, and the basis keeping original portable oscillograph increases can charged installation function.
For realizing the object of the utility model, following technology is adopted to be achieved, a portable fault oscillograph for charged installation, module, ADSP plug-in unit, CPU card and temperature/humidity sensor module when its system comprises independent current source, sensor package, switching value module, GPS couple;
Described independent current source, for providing rated supply voltage to each plug-in unit, makes each plug-in unit normally work;
Described sensor package, for by high voltage or big current and oscillograph equipment blocking, avoids oscillograph fault effects to primary equipment, voltage or current signal is transformed to the inner AD of oscillograph and converts the 5V signal that can receive, charged acquisition circuit current signal;
Described switching value module, for receiving the switching value module by signal of electric system input, switch amount module by signal carries out input and output isolation, forms safety switch Signal transmissions to ADSP plug-in unit;
Module during described GPS couple, module by signal during for receiving the GPS couple of electric system input, when adopting hardware pulse and IRIG-B two kinds couples, mode realizes synchronous all the time with GPS, and information when to provide pair to ADSP plug-in unit;
Described ADSP plug-in unit, the analog voltage signal sent for receiving sensor plug-in unit and analog current signal, the safety switch signal that the switching value module receiving electric system input provides, and receive electric system input GPS couple time module provide pair time signal, data acquisition, start-up criterion, module during GPS couple, to CPU card transmission recorder data, and receive the point information that CPU card provides;
Temperature/humidity sensor module is connected with CPU card by ADSP plug-in unit, and this sensor assembly comprises temperature sensor and humidity sensor;
Described CPU card, for receiving the recorder data that ADSP plug-in unit sends, completing the storage of recorder data, communication, analysis, sending point information to ADSP plug-in unit.
The beneficial effects of the utility model are: add various sensor package at data acquisition end, portable fault oscillograph is charged, safety, convenience and installation and removal efficiently to utilize various sensor package to realize, and temperature/humidity sensor module can testing environment temperature and humidity, guarantee oscillograph safe and stable operation, transferring waveform timely and conveniently whenever necessary, analyze physical fault situation, search reason and Problems existing, to solve the problem of distribution more quickly and accurately, promote analysis level and the actual motion reliability of distribution.
On the basis of technique scheme, the utility model can also do following improvement.
Further, described sensor package is the TV/TA sensor package of two 8 passages, the Hall current of 8 passages and pincerlike meter current sensor plug-in unit, the direct current transducer plug-in unit of 8 passages;
The data of collection for the sensor package of the ac voltage signal and ac current signal that gather fixing range, and are transferred to ADSP plug-in unit by described TV/TA sensor package;
Described Hall current and pincerlike meter current sensor plug-in unit, for gathering the ac and dc current signal of fixing range, Hall current sensor plug-in unit is for gathering ac and dc current signal, and pincerlike meter is for gathering ac current signal;
Described direct current transducer plug-in unit, for gathering the DC current/voltage signal of different range.
The beneficial effect of above-mentioned further scheme is adopted to be adopt TV/TA sensor package can gather high-precision AC voltage/current signals, adopt pincerlike meter current sensor can in the charged situation in loop light acquisition circuit ac current signal, adopt Hall element can the interchange of accurate acquisition height electric current or direct current signal, adopt direct current transducer plug-in unit can gather different range DC voltage/current signal, finally realize multirange, the automatic selection technique of multiplex roles, meet on-the-spot different demands.
Further, described switching value module is the empty node of switching value module DC24V of 16 passages and the switching value module DC110V/220V active node of 16 passages;
The empty node of described switching value module DC24V, for gathering low tension switch amount module by signal, by disconnector amount module input/output signal, forming safety switch signal, afterwards safety switch signal being sent to ADSP plug-in unit.
Described switching value module DC110V/220V active node, for gathering high-voltage switch gear amount module by signal, by disconnector amount module input/output signal, forming safety switch signal, afterwards safety switch signal being sent to ADSP plug-in unit.
Adopt the beneficial effect of above-mentioned further scheme to be the input/output signal isolation realizing high pressure and low tension switch amount module, avoid oscillograph to break down having influence on primary equipment normally running, and form safety switch Signal transmissions to ADSP plug-in unit.
Further, when during described GPS couple, module is hardware pulse (minute, second) pair and IRIG-B couple time mode.Hardware pulse generally selects a point pulse mode, gives record ripple unit to constantly by point pulse, the time arranging manually to record ripple unit to be once accurate to minute; When adopting IRIG-B (DC) to encode to record ripple unit pair, only need manually to arrange to record ripple unit the time being once accurate to year, record ripple unit just can be synchronous with gps clock.
When adopting the beneficial effect of above-mentioned further scheme to be+point+pulse per second (PPS) pair time can the minute, second of proof time, millisecond, microsecond position; IRIG-B code adopt regular coding pair time information, pair time convenient, precision is high, and mode during standard pair, does not exist compatibling problem.
Further, described ADSP plug-in unit is monolithic DSP+FPGA.Monolithic high speed 32 Floating-point DSP+FPGA (75000 logic gate) realize the hardware synchronization data acquisition control of 32 tunnel analog quantity 32 way switch amount modules.The collection of settling signal, start-up simulation, startup judgement and data transmission.DSP reads sampled data and markers from FPGA, is stored in dynamic storage SDRAM, and is transferred to CPU card after data being packed.
Adopt the beneficial effect of above-mentioned further scheme to be adopt monolithic high speed 32 Floating-point DSP+FPGA to realize 32 tunnel analog quantity 32 way switch amount module high-precise synchronization Sampling techniques, its integrated level is high, strong interference immunity, system run all right; Adopt FPGA to sample to signal, accurately sampling can be realized fast; DSP is adopted to carry out computing and the control of record ripple, more fast accurately.
Further, the described condition starting record ripple comprises the startup of voltage/current Sudden Changing Rate, the out-of-limit amount of voltage/current starts, voltage/current sequence amount starts and the displacement of switching value module starts.
Adopt the beneficial effect of above-mentioned further scheme to be that the condition starting record ripple condition and start travelling wave ranging is set, be of value to the process that application solutions record involves travelling wave ranging, the reliability of very high system cloud gray model.
Accompanying drawing explanation
Fig. 1 is the utility model one-piece construction block diagram;
In accompanying drawing, the list of parts representated by each label is as follows:
1, independent current source, 2, sensor package, 3, switching value module, 4, GPS couple time module, 5, ADSP plug-in unit, 6, CPU card, 7, temperature/humidity sensor module.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, the portable fault oscillograph of a kind of charged installation that the utility model provides, module 4, ADSP plug-in unit 5, CPU card 6 and temperature/humidity sensor module 7 when its system architecture comprises independent current source 1, sensor package 2, switching value module 3, GPS couple;
Described independent current source 1, for providing rated supply voltage to each plug-in unit, makes each plug-in unit normally work.
Described sensor package 2, for by high voltage or big current and oscillograph equipment blocking, avoids oscillograph fault effects to primary equipment, voltage or current signal is transformed to the inner AD of oscillograph and converts the 5V signal that can receive, charged acquisition circuit current signal.
Described switching value module 3, for receiving the switching value module by signal of electric system input, switch amount module by signal carries out input and output isolation, forms safety switch Signal transmissions to ADSP plug-in unit 5.
Module 4 during described GPS couple, module by signal during for receiving the GPS couple of electric system input, when adopting hardware pulse and IRIG-B two kinds couples, mode realizes synchronous all the time with GPS, and information when to provide pair to ADSP plug-in unit 5.
Described ADSP plug-in unit 5, the analog voltage signal sent for receiving sensor plug-in unit and analog current signal, the safety switch signal that the switching value module receiving electric system input provides, and receive electric system input GPS couple time module provide pair time signal, data acquisition, start-up criterion, module during GPS couple, transmit recorder data to CPU card 6, and receive the point information that CPU card 6 provides;
Temperature/humidity sensor module is connected with CPU card by ADSP plug-in unit 5, and this sensor assembly comprises temperature sensor and humidity sensor;
Described CPU card 6, for receiving the recorder data that ADSP plug-in unit 5 sends, running VxWorks system, completing the storage of recorder data, communication, analysis, send point information to ADSP plug-in unit 5.
Described sensor package 3 is the TV/TA sensor package of two 8 passages, the Hall current of 8 passages and pincerlike meter current sensor plug-in unit, the direct current transducer plug-in unit of 8 passages;
The data of collection for the sensor package of the ac voltage signal and ac current signal that gather fixing range, and are transferred to ADSP plug-in unit 5 by described TV/TA sensor package;
Described Hall current and pincerlike meter current sensor plug-in unit, for gathering the ac and dc current signal of fixing range, Hall current sensor plug-in unit is for gathering ac and dc current signal, and pincerlike meter is for gathering ac current signal;
Described direct current transducer plug-in unit, for gathering the DC current/voltage signal of different range.
Described switching value module is the empty node of switching value module DC24V of 16 passages and the switching value module DC110V/220V active node of 16 passages;
The empty node of described switching value module DC24V, for gathering low tension switch amount module by signal, by disconnector amount module input/output signal, forming safety switch signal, afterwards safety switch signal being sent to ADSP plug-in unit.
Described switching value module DC110V/220V active node, for gathering high-voltage switch gear amount module by signal, by disconnector amount module input/output signal, forming safety switch signal, afterwards safety switch signal being sent to ADSP plug-in unit.
When during described GPS couple, module is hardware pulse (minute, second) pair and IRIG-B couple time mode.Hardware pulse generally selects a point pulse mode, gives record ripple unit to constantly by point pulse, the time arranging manually to record ripple unit to be once accurate to minute; When adopting IRIG-B (DC) to encode to record ripple unit pair, only need manually to arrange to record ripple unit the time being once accurate to year, record ripple unit just can be synchronous with gps clock.
Described ADSP plug-in unit is monolithic DSP+FPGA.Monolithic high speed 32 Floating-point DSP+FPGA (75000 logic gate) realize the hardware synchronization data acquisition control of 32 tunnel analog quantity 32 way switch amount modules.The collection of settling signal, start-up simulation, startup judgement and data transmission.DSP reads sampled data and markers from FPGA, is stored in dynamic storage SDRAM, and is transferred to CPU card after data being packed.
The described condition starting record ripple comprises the startup of voltage/current Sudden Changing Rate, the out-of-limit amount of voltage/current starts, voltage/current sequence amount starts and the displacement of switching value module starts.
Leading indicator
A) sensor package and switching value module
1) alternating voltage (TV) plug-in unit
● number of channels: 8 tunnels; Rated voltage: 57.7V; Rated frequency: 50Hz; Range: 180Vrms;
2) alternating current (TA) plug-in unit
● number of channels: 8 tunnels; Rated current: 5A; Rated frequency: 50Hz; Range: 180Arms; 3) Hall/pincerlike meter plug-in unit
● ac and dc current (Hall) number of channels: 4 tunnels; Range: 125Arms;
● alternating current (pincerlike meter) number of channels: 4 tunnels; Range: 100Arms; Rated frequency: 50Hz;
4) DC inserter
● DC voltage passage: 2 tunnels; Measurement range: 0V-+750V
● DC voltage passage: 2 tunnels; Measurement range: 0V-+300V
● DC voltage passage: 2 tunnels; Measurement range: 0V-+10V
● DC voltage passage: 1 tunnel; Measurement range: 0V-+200mV
● DC current path: 1 tunnel; Measurement range: 0mA-+20mA
5) switching value module
● the empty node of DC24V; Number of channels: 16 tunnels
● DC110V/220V active node; Number of channels: 16 tunnels
B) performance index
● signals collecting and start-up simulation adopt single DSP framework, realize 32 tunnel analog quantitys by 1 DSP, the access of 32 way switch amount modules; Adopt novel circuit configuration and 75000 scale programmable logic devices, integrated level is high simultaneously, and antijamming capability is strong, system run all right.
● 32 high-speed floating point digital signal processors (DSP), 16 A/D, sampling rate 10kHz is adjustable, harmonic wave resolution≤99 time, switch events resolution 0.1ms;
● adopt high-performance real-time embedded operating system VxWorks, system stability, reliable, real-time is good;
● support long-time continuous record, device can with the continuous record of the sampled value of 1KHz, record data are with 7 days for periodic refresh, and data hold time only limits by port number and memory span, abandons the effective value slow scanning record of a traditional cycle point;
● random length dynamic recording and fault localization, the distance accuracy of metallic short circuit is better than 2%;
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. the portable fault oscillograph of a charged installation, it is characterized in that: comprise independent current source (1), sensor package (2), switching value module (3), module (4), ADSP plug-in unit (5), CPU card (6) and temperature/humidity sensor module (7) during GPS couple;
Described independent current source (1), for providing rated supply voltage to each plug-in unit, makes each plug-in unit normally work;
Described sensor package (2), for by high voltage or big current and oscillograph equipment blocking, avoids oscillograph fault effects to primary equipment, is the signal that oscillograph inside can receive by voltage or current transformation, charged acquisition circuit current signal;
Described switching value module (3), for receiving the on-off model of electric system input, switch amount signal carries out input and output isolation, forms safety switch Signal transmissions to ADSP plug-in unit (5);
Module (4) during described GPS couple, signal during for receiving the GPS couple of electric system input, when adopting hardware pulse and IRIG-B two kinds couples, mode realizes synchronous all the time with GPS, and information when to provide pair to ADSP plug-in unit (5);
Described ADSP plug-in unit (5), the analog voltage signal sent for receiving sensor plug-in unit (2) and analog current signal, the safety switch signal that the switching value (3) receiving electric system input provides, and receive electric system input GPS couple time (4) provide pair time signal, data acquisition, start-up criterion, during GPS couple, to CPU card (6) transmission recorder data, and receive the point information that CPU card (6) provides;
Temperature/humidity sensor module (7) is connected with CPU card (6) by ADSP plug-in unit (5), and this sensor assembly comprises temperature sensor and humidity sensor;
Described CPU card (6), for receiving the recorder data that ADSP plug-in unit (5) sends, completes the storage of recorder data, communication, analysis, sends point information to ADSP plug-in unit (5).
2. the portable fault oscillograph of a kind of charged installation according to claim 1, it is characterized in that: described sensor package (2) is the TV/TA sensor package of two 8 passages, the Hall current of 8 passages and pincerlike meter current sensor plug-in unit, the direct current transducer plug-in unit of 8 passages;
The data of collection for the sensor package of the ac voltage signal and ac current signal that gather fixing range, and are transferred to ADSP plug-in unit (5) by described TV/TA sensor package;
Described Hall current and pincerlike meter current sensor plug-in unit, for gathering the ac and dc current signal of fixing range, Hall current sensor plug-in unit is for gathering ac and dc current signal, and pincerlike meter is for gathering ac current signal;
Described direct current transducer plug-in unit, for gathering the DC current/voltage signal of different range.
3. the portable fault oscillograph of a kind of charged installation according to claim 1, is characterized in that: described switching value module (3) is the empty node of switching value DC24V of 16 passages and the switching value DC110V/220V active node of 16 passages;
The empty node of described switching value DC24V, for gathering low tension switch amount signal, by disconnector amount input/output signal, forming safety switch signal, afterwards safety switch signal being sent to ADSP plug-in unit (5);
Described switching value DC110V/220V active node, for gathering high-voltage switch gear amount signal, by disconnector amount input/output signal, forming safety switch signal, afterwards safety switch signal being sent to ADSP plug-in unit (5).
4. the portable fault oscillograph of a kind of charged installation according to claim 1, is characterized in that: described ADSP plug-in unit (5) is monolithic DSP+FPGA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520811594.4U CN205103330U (en) | 2015-10-19 | 2015-10-19 | Portable fault oscillograph of electrified installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520811594.4U CN205103330U (en) | 2015-10-19 | 2015-10-19 | Portable fault oscillograph of electrified installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205103330U true CN205103330U (en) | 2016-03-23 |
Family
ID=55519106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520811594.4U Active CN205103330U (en) | 2015-10-19 | 2015-10-19 | Portable fault oscillograph of electrified installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205103330U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403780A (en) * | 2015-10-19 | 2016-03-16 | 国家电网公司 | Portable fault oscilloscope mounted in live-line mode |
| CN108983044A (en) * | 2018-08-06 | 2018-12-11 | 北京恒源利通电力技术有限公司 | The synchronous Wave record method of overhead transmission line three-phase current based on RF wireless telecommunications |
-
2015
- 2015-10-19 CN CN201520811594.4U patent/CN205103330U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403780A (en) * | 2015-10-19 | 2016-03-16 | 国家电网公司 | Portable fault oscilloscope mounted in live-line mode |
| CN108983044A (en) * | 2018-08-06 | 2018-12-11 | 北京恒源利通电力技术有限公司 | The synchronous Wave record method of overhead transmission line three-phase current based on RF wireless telecommunications |
| CN108983044B (en) * | 2018-08-06 | 2021-02-19 | 北京恒源利通电力技术有限公司 | Overhead line three-phase current synchronous wave recording method based on RF wireless communication |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201203660Y (en) | Distance measurer for electric power system voltage traveling wave | |
| CN202421768U (en) | Multifunctional time synchronization calibrator for electric power systems | |
| CN107741549A (en) | The intelligent substation synchronism tester synchronously occurred based on analog quantity and digital quantity | |
| CN105403780A (en) | Portable fault oscilloscope mounted in live-line mode | |
| CN205103330U (en) | Portable fault oscillograph of electrified installation | |
| CN203465541U (en) | Beidou/GPS double-time service source-based failure time recording device | |
| CN202384838U (en) | Secondary system real-time simulation testing platform for total station of intelligent transformer substation | |
| CN104297593B (en) | Punctuality error detection method for intelligent substation merging unit | |
| CN105403751A (en) | Power grid state monitoring device based on Beidou | |
| KR101174254B1 (en) | Meter Data Management System for Smart Grid | |
| CN204287461U (en) | The specified time delay detector of Intelligent substation merging unit | |
| CN104007410A (en) | Digital electric energy meter verifying device | |
| WO2012083720A1 (en) | Real-time online monitoring devices for electromagnetic environment | |
| CN209542825U (en) | A kind of on-line monitoring system of CVT measurement error state | |
| CN201434887Y (en) | On-line monitoring unit for secondary loop voltage drop | |
| CN212845639U (en) | Intelligent substation merging cells error testing arrangement that keeps watch | |
| CN103063907B (en) | A kind of electronic type voltage transformer signal collection system | |
| CN201812155U (en) | Satellite synchronous slave clock device | |
| CN205176249U (en) | Electronic transformer metering performance detection device | |
| CN115184698A (en) | Synchronous measurement system for power system | |
| CN204065694U (en) | A kind of portable satellite synchronous clock pick-up unit | |
| CN202230321U (en) | Timing and time keeping accuracy test system | |
| CN204086419U (en) | A kind of merge cells tester multichannel analog amount Acquisition Circuit | |
| CN207081777U (en) | Low pressure is wireless phase checking device | |
| CN202383198U (en) | Multi-channel alternating current electric quantity metering device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |