CN203101540U - Portable load characteristic analyzer - Google Patents
Portable load characteristic analyzer Download PDFInfo
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- CN203101540U CN203101540U CN 201220668123 CN201220668123U CN203101540U CN 203101540 U CN203101540 U CN 203101540U CN 201220668123 CN201220668123 CN 201220668123 CN 201220668123 U CN201220668123 U CN 201220668123U CN 203101540 U CN203101540 U CN 203101540U
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Abstract
The utility model provides a portable load characteristic analyzer. The load characteristic analyzer comprises a load analyzer, a data processing module in circuit connection with the load analyzer, and a split-core current transformer and a voltage clamp which are in circuit connection with the load analyzer. The load characteristic analyzer further comprises a portable instrument box. The load analyzer comprises an intelligent load acquisition terminal, and a power supply and energy storage unit and a data acquisition and storage unit which are in circuit connection with the intelligent load acquisition terminal. With the portable load characteristic analyzer provided by the utility model, power grid operation personnel can conveniently obtain the load characteristics of a 380V circuit to be detected, and if there is a trip-out record, the trip-out reasons can be accurately analyzed, thereby taking corresponding measures in time to prevent the trip-out phenomenon from occurring again. The portable load characteristic analyzer is beneficial for improving the electric management level of power supply enterprises, and improving the satisfaction of clients.
Description
Technical field
The utility model relates to a kind of portable Load Characteristic Analysis instrument.
Background technology
In putting into practice work, the power failure that the frequent tripping operation of user 380V side switch causes often takes place.Because the user side part throttle characteristics varies, and low-pressure side generally do not install measuring instrument, so the operation of power networks personnel often can't correct analysis judge the culprit that cause the low-voltage customer tripping operation.The frequent generation of this type of incident has greatly increased operation of power networks work of maintenance personnel pressure, can not in time analyze to search failure cause and can cause that also user's satisfaction descends, thereby influence the image of power supply enterprise.
Therefore, if can have a cover can make things convenient for the part throttle characteristics that is installed in the 380V load side to write down and analytical instrument temporarily for operation department of power supply enterprise, then can carry out first-hand record to user personality, and the part throttle characteristics of playback analysis user afterwards, thereby the accurate corresponding relation of seeking tripping operation and part throttle characteristics is judged failure cause, in the hope of finding effective solution.
The civilian 380V low pressure of domestic overwhelming majority using electricity system is not also installed monitoring equipment at present.
Even if the occasion that has has been installed monitoring equipment, also just adopt digital displaying meter generally speaking, realize the collection of circuit electricity consumption situation, but often do not possess senior application functions such as failure wave-recording, the quality of power supply.Moreover such system generally realizes having different background systems by different manufacturers, and data query is also inconvenient.
In 10kV and above high-voltage electric system, the protection measurement and control unit generally all has been installed, or even fault oscillograph can carry out very accurate supervision to each loop electric parameters.
Also there is high-end low pressure detection and control terminal to possess perfect quality of power supply function for monitoring, as the ION7500 series of products of Schneider, but cost height often, and being designed to online installing type, large tracts of land is promoted to install to waste time and energy.
There is a kind of digital part throttle characteristics recording camera can realize that part throttle characteristics accurately gathers, shows and analyze in addition, but has only online equipment at present, do not possess the ability of long record part throttle characteristics.And the on-the-spot trip phenomenon that takes place often can not specifically determine when take place, and therefore requires the load analyser need have high capacity record wave energy.This in addition equipment also generally has strict demand to running environment, can not be installed in as in the position narrow spaces such as case change.
By last surface analysis, from the production practices angle, electric company wishes to use a kind of portable, convenient installation, low cost, has the instrument that electric parameters changes accurate record, and such product is seldom arranged on the market.
The utility model content
The utility model provides a kind of portable Load Characteristic Analysis instrument, the operation of power networks personnel will utilize the utility model to obtain the part throttle characteristics in 380V loop to be measured easily, if tripping operation record being arranged then can the Accurate Analysis trip reason, thereby in time take countermeasure to take place once more to avoid trip phenomenon.Therefore the utility model is for improving power supply enterprise's management of power use level, and improving customer satisfaction has positive effect.
In order to achieve the above object, the utility model provides a kind of portable Load Characteristic Analysis instrument, and this analyser comprises split core type current transformer and the voltage clamp that data processing module, circuit that load analyser, circuit connect this load analyser connect this load analyser.
Described analyser also comprises the portable apparatus case.
Described load analyser comprises intelligence load acquisition terminal is connected this intelligence load acquisition terminal with circuit power supply and energy-storage units and data acquisition and storage unit.
The utility model is the trip phenomenon that unknown cause frequently takes place at 380V side electricity consumption user, the hand-held analyzer device of one cover low-voltage customer Load Characteristic Analysis of design, the utility model can be convenient for carrying, support charged installation, device volume is small and exquisite, can be installed in the narrow test space in positions such as case change, ring main unit.The utility model can carry out detail record to the operation characteristic of 380V single loop load circuit, but and the load curve of the playback searching trip reason that compares.Utilizing the utility model to solve does not have the work present situation of record and analysis means when the low-voltage customer side breaks down, can analyze effectively to solve the problem that exists in the consumer networks, better for the client provides service, improves customer satisfaction, promotes electric company's image.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of load analyser of the present utility model.
Embodiment
Following according to Fig. 1 and Fig. 2, specify preferred embodiment of the present utility model.
As shown in Figure 1, the utility model provides a kind of portable Load Characteristic Analysis instrument, and this analyser comprises split core type current transformer 104 and the voltage clamp 103 that data processing module 102, circuit that load analyser 101, circuit connect this load analyser connect this load analyser;
This analyser also comprises portable apparatus case 105, holds load analyser 101, split core type current transformer 104 and voltage clamp 103 in this portable apparatus case 105;
As shown in Figure 2, described load analyser 101 comprises intelligence load acquisition terminal 1011 is connected this intelligence load acquisition terminal 1011 with circuit power supply and energy-storage units 1012 and data acquisition and storage unit 1013;
In the present embodiment, intelligence load acquisition terminal 1011 adopts auspicious the continuing in Shen, Shanghai to protect the DEP-970D intelligent power distribution controller of Electric Applicance Co., Ltd;
Power supply and energy-storage units 1012 are that direct current is intelligence load acquisition terminal 1011 and data acquisition and storage unit 1013 power supplies with the alternating current 220V power conversion;
Data acquisition and storage unit 1013 adopt embedded main board, and embedded main board possesses characteristics such as size is little, high integration, low-power consumption; At present embedded main board is more common generally two big classes: based on the embedded main board of X86 (generally using INTEL, Weisheng, AMD or other to produce tame X86 chip as Taiwan RDC, Taiwan ICOP or the like); ARM embedded main board (by the licensed-type production of ARM company, each chip produces house respectively own special function) based on RISC; In the present embodiment, data acquisition and storage unit 1013 adopt the embedded integrated circuit board of the strong WAFER-945GSE2 of prestige, and configuration 8G CF card is as data storage medium;
Split core type current transformer 104 adopts Beaune prestige BNWJKC-50 type clamp current transformer, joins 5 meters extended lines; This forcipated mutual-inductor range ability 0 ~ 600A, turn ratio 1:2000, precision ± 1.0%FS, jaw bore 50mm * 50mm, physical dimension 216mm * 101mm * 28mm satisfies under the ring main unit load condition live testing;
Adopt crocodile clip to be connected low pressure 380V busbar with voltage clamp 103, need not the voltage quadratic transformation, on-the-spot easy for installation, voltage clamp insulate;
The utility model is when work, voltage clamp 103 and split core type current transformer 104 are clipped on the bus that is connected to load, the voltage and current of intelligence load acquisition terminal 1011 control voltage clamps 103 and 104 pairs of buses of split core type current transformer carries out high-speed sampling, and sampled result compression is stored in data acquisition and storage unit 1013, and with data transmission to data processing module 102, power supply and energy-storage units 1012 are intelligence load acquisition terminal 1011 and data acquisition and storage unit 1013 power supplies, data processing module 102 utilizes Automation of Electric Systems SCADA software that the data of gathering are carried out analyzing and processing, carries out fault diagnosis;
Described intelligence load acquisition terminal 1011 provides resolution to show up to the real-time effective value waveform of 10ms, with resolution be weekly the fault instantaneous value record ripple of 24 in ripple, electric current, the accurate effective value curve of voltage were for analysis before and after the accident of utilizing intelligence load acquisition terminal 1011 to provide took place, this curve temporal resolution is up to 10ms 1 point, can be complete the state of current/voltage before and after the reproduction fault, be convenient to analyzing failure cause, fix a breakdown, ensure that electricity consumption is reliable and stable; For further analysis accident, intelligence load acquisition terminal 1011 can provide the current/voltage instantaneous value waveform of fault moment simultaneously, it is the failure wave-recording function, this record wave energy is with the resolution of 24 in ripple weekly, the waveform of the current/voltage of 5 cycles after the preceding 5 cycle faults of record trouble, and realize showing on the spot for analysis; Intelligence load acquisition terminal 1011 adopts compression storing data and transmission, and only the load monitoring terminal just can write down nearest 16 fault recorder datas; Insert electrical network in a large number at nonlinear-loads such as present power electronic equipments, grid supply quality is had a strong impact on, higher hamonic wave may cause the situation of tripping operation at electricity consumption side 380V, intelligence load acquisition terminal 1011 has the harmonic wave function for monitoring, intelligence load acquisition terminal 1011 built-in DSP(digital signal processors) process chip, intensive sampling and FFT(Fast Fourier Transform (FFT) by 256 in ripple weekly) computing, real-time analysis each harmonic amount and resultant distortion rate, and intuitively show the harmonic wave index in the histogram mode, but real-time online analysis and record 3-31 subharmonic make things convenient for O﹠M personnel diagnostic load characteristic.
The load historical data that data processing module 102 collects by data visualization, by i-v curve, load curve, harmonic wave histogram etc. intuitively show, playback and inquiry, be convenient to O﹠M personnel observation and carry out fault diagnosis.
Although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple modification of the present utility model with to substitute all will be conspicuous.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (3)
1. portable Load Characteristic Analysis instrument, it is characterized in that this analyser comprises load analyser (101), circuit connects the data processing module (102) of this load analyser, split core type current transformer (104) and the voltage clamp (103) that circuit connects this load analyser.
2. portable Load Characteristic Analysis instrument as claimed in claim 1 is characterized in that described analyser also comprises portable apparatus case (105).
3. portable Load Characteristic Analysis instrument as claimed in claim 1, it is characterized in that described load analyser (101) comprises intelligence load acquisition terminal (1011) is connected this intelligence load acquisition terminal (1011) with circuit power supply and energy-storage units (1012) and data acquisition and storage unit (1013).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220668123 CN203101540U (en) | 2012-12-07 | 2012-12-07 | Portable load characteristic analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220668123 CN203101540U (en) | 2012-12-07 | 2012-12-07 | Portable load characteristic analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203101540U true CN203101540U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220668123 Expired - Lifetime CN203101540U (en) | 2012-12-07 | 2012-12-07 | Portable load characteristic analyzer |
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| Country | Link |
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| CN (1) | CN203101540U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154082A (en) * | 2016-06-20 | 2016-11-23 | 北京智芯微电子科技有限公司 | A kind of intelligent measure harvester of part throttle characteristics on-line analysis |
| CN114123493A (en) * | 2021-11-09 | 2022-03-01 | 广西电网有限责任公司柳州供电局 | Frequent trip judging instrument for 400V low-voltage switch |
-
2012
- 2012-12-07 CN CN 201220668123 patent/CN203101540U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154082A (en) * | 2016-06-20 | 2016-11-23 | 北京智芯微电子科技有限公司 | A kind of intelligent measure harvester of part throttle characteristics on-line analysis |
| CN114123493A (en) * | 2021-11-09 | 2022-03-01 | 广西电网有限责任公司柳州供电局 | Frequent trip judging instrument for 400V low-voltage switch |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20130731 |