CN206431219U - Impact load is to the long-range monitoring main frame of electric energy metering error - Google Patents
Impact load is to the long-range monitoring main frame of electric energy metering error Download PDFInfo
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- CN206431219U CN206431219U CN201720123299.9U CN201720123299U CN206431219U CN 206431219 U CN206431219 U CN 206431219U CN 201720123299 U CN201720123299 U CN 201720123299U CN 206431219 U CN206431219 U CN 206431219U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 17
- 238000005070 sampling Methods 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000005259 measurement Methods 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000002955 isolation Methods 0.000 claims description 12
- 238000004088 simulation Methods 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model proposes impact load to the long-range monitoring main frame of electric energy metering error, including housing, and the observation circuit being arranged in housing, observation circuit includes sample circuit, and the preferred circuit being connected with sample circuit.Sample circuit includes the sampling resistor for being used to receive electric signal, and sampling resistor is connected with simulating the input of discharge circuit, and on the one hand the output end for simulating discharge circuit is connected with the relay being arranged on multiple Measurement channels；Sampled result is calculated by simulating discharge circuit, when result of calculation is more than default range, the switching for realizing range is controlled to relay, guarantee accurately to obtain the parameter value that power supply to be detected exports electric signal, relative to the real-time that prior art can obtain electric energy meter and loop state detection device in real time, the detectability of measuring apparatus is improved.
Description
Technical field
The utility model belongs to field of electrical equipment, and more particularly to impact load is to the long-range monitoring master of electric energy metering error
Machine.
Background technology
High-speed railway with its energy-saving and environmental protection, it is efficient, safe, comfortable, quick, punctual the features such as world's railway
New trend.Recently as developing rapidly for China's high ferro technology, while people's trip is convenient, the construction at high ferro station is also electricity
The problem of power metering introduces new.
Electric railway electric locomotive is high-power single-phase rectification load, is come for the power system power supply of three-phase symmetrical
Say, the features such as electrization railway draught load has non-linear, asymmetric and impact, the harmonic wave electricity of three-phase imbalance will be produced
Stream and fundamental negative sequence current injected system, cause the harmonic current, harmonic voltage, imbalance of three-phase voltage of points of common connection bus
The multinomial power quality indexs such as degree are exceeded, had a strong impact on the safety of power system security, economy, stable operation and power consumer
Electricity consumption, causes generator tripping, and protective relaying maloperation is made, and generator amature is burnt out, motor of power capacitor and user etc.
The damage of electrical equipment.However, lacking real-time, Yi Jigao for some traditional electric energy meters and loop state detection device
The load at iron station has discontinuity, constrains the detectability of conventional measurement devices, makes gage work personnel can not scene completion
Test job, it is impossible to manage the metering accuracy of user.
Utility model content
In order to solve shortcoming and defect present in prior art, the utility model, which is provided, to be used to improve detectability
Impact load is to the long-range monitoring main frame of electric energy metering error.
In order to reach above-mentioned technical purpose, the utility model provides impact load to the long-range monitoring master of electric energy metering error
Machine, the remote detection main frame includes housing, and the observation circuit being arranged in housing, and the observation circuit includes sampling electricity
Road, and the preferred circuit being connected with sample circuit；
The sample circuit includes the sampling resistor for being used to receive electric signal, the input of sampling resistor and simulation discharge circuit
On the one hand end connection, the output end for simulating discharge circuit is connected with the relay being arranged on multiple Measurement channels, simulates amplifier
On the other hand the output end of circuit is also connected with the input of preferred circuit；
The preferred circuit includes the modulus isolation circuit for being used to receive the electric signal from simulation discharge circuit output, in mould
The output end of number isolation circuit is connected with data acquisition circuit, data processing circuit is connected with after data acquisition circuit, in number
Serial communication circuit is connected with according to the output end of process circuit.
Optionally, the electric signal includes voltage signal, current signal and pulse signal.
Optionally, when the electric signal is voltage signal, being provided with the preferred circuit is used to receive simulation amplifier
First analog to digital conversion circuit of circuit output voltage signal, the first benchmark electricity is connected with the input of the first analog to digital conversion circuit
Press generation circuit.
Optionally, when the electric signal is current signal, being provided with the preferred circuit is used to receive simulation amplifier
Second analog to digital conversion circuit of circuit output current signal, the second benchmark electricity is connected with the input of the second analog to digital conversion circuit
Press generation circuit.
Optionally, the signal drive circuit being connected with the modulus isolation circuit, the input of signal drive circuit are additionally provided with
End is connected with switching switch.
Optionally, the modulus isolation circuit is directly connected to data processing circuit.
Optionally, the current transformer for being used for receiving current signal is provided with sample circuit, the current transformer is
External straight-through current transformer with electronic compensation function.
The beneficial effect brought of technical scheme that the utility model is provided is：
Sampled result is calculated by simulating discharge circuit, when result of calculation is more than default range, to relay
It is controlled the switching for realizing range, it is ensured that can accurately obtain the parameter value that power supply to be detected exports electric signal, relative to
Prior art can obtain the real-time of electric energy meter and loop state detection device in real time, improve the detection of measuring apparatus
Ability.
Brief description of the drawings
In order to illustrate more clearly of the technical solution of the utility model, used required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present utility model, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the concrete structure diagram of the sample circuit that the utility model is provided and preferred circuit.
Embodiment
To make structure of the present utility model and advantage clearer, structure of the present utility model is made below in conjunction with accompanying drawing
It is further described through.
Embodiment one
Concrete structure of the long-range monitoring main frame proposed in the utility model embodiment based on long-range monitoring main frame be：
Remote detection main frame includes housing, and the observation circuit being arranged in housing, and the observation circuit includes sampling
Circuit, and the preferred circuit being connected with sample circuit.
Sample circuit and the concrete structure of preferred circuit are as shown in Figure 1.
The sample circuit includes the sampling resistor for being used to receive electric signal, the input of sampling resistor and simulation discharge circuit
On the one hand end connection, the output end for simulating discharge circuit is connected with the relay being arranged on multiple Measurement channels, simulates amplifier
On the other hand the output end of circuit is also connected with the input of preferred circuit；
The preferred circuit includes the modulus isolation circuit for being used to receive the electric signal from simulation discharge circuit output, in mould
The output end of number isolation circuit is connected with data acquisition circuit, data processing circuit is connected with after data acquisition circuit, in number
Serial communication circuit is connected with according to the output end of process circuit.
Wherein, the electric signal that sample circuit is used to receive specifically includes voltage signal, current signal and pulse signal.
When the electric signal is voltage signal, being provided with the preferred circuit is used to receive simulation discharge circuit output
First analog to digital conversion circuit of voltage signal, is connected with the first reference voltage in the input of the first analog to digital conversion circuit and produces electricity
Road.
When the electric signal is current signal, being provided with the preferred circuit is used to receive simulation discharge circuit output
Second analog to digital conversion circuit of current signal, is connected with the second reference voltage in the input of the second analog to digital conversion circuit and produces electricity
Road.
Optionally, the signal drive circuit being connected with the modulus isolation circuit is additionally provided with preferred circuit, signal drives
The input of dynamic circuit is connected with switching switch.Signal drive circuit is used to receive the switching signal that switching switch is sent, so that
The range switching based on manual intervention can be carried out after remotely monitoring main frame range can not be switched over.
Based on the signal drive circuit proposed above, the modulus isolation circuit being connected with signal drive circuit and data processing
Circuit is directly connected to.I.e. modulus isolation circuit rear end is directly connected without data acquisition circuit with data processing circuit, and this is
Because the time value that the signal that switching switch is produced need not be produced with crystal oscillator is matched, data processing circuit is transmitted directly to
Handled.
Optionally, the current transformer for being used for receiving current signal is provided with sample circuit, the current transformer is
External straight-through current transformer with electronic compensation function.
The utility model proposes impact load to the long-range monitoring main frame of electric energy metering error, including housing, and set
Observation circuit in housing, observation circuit includes sample circuit, and the preferred circuit being connected with sample circuit.Sample circuit
Including the sampling resistor for receiving electric signal, sampling resistor is connected with simulating the input of discharge circuit, simulates discharge circuit
Output end on the one hand be connected with the relay being arranged on multiple Measurement channels.Sampled result is entered by simulating discharge circuit
Row is calculated, and when result of calculation is more than default range, the switching for realizing range is controlled to relay, it is ensured that can be accurate
The parameter value that power supply to be detected exports electric signal is obtained, electric energy meter and loop shape can be obtained in real time relative to prior art
The real-time of state detection device, improves the detectability of measuring apparatus.
Each sequence number in above-described embodiment is for illustration only, and the elder generation during the assembling or use of each part is not represented
Afterwards sequentially.
Embodiment of the present utility model is the foregoing is only, it is all in the utility model not to limit the utility model
Spirit and principle within, any modification, equivalent substitution and improvements made etc. should be included in protection model of the present utility model
Within enclosing.
Claims (7)
1. impact load is to the long-range monitoring main frame of electric energy metering error, it is characterised in that the remote detection main frame includes housing,
And the observation circuit in housing is arranged on, the observation circuit includes sample circuit, and the standard being connected with sample circuit
Circuit；
The sample circuit includes the sampling resistor for being used to receive electric signal, and the input of sampling resistor and simulation discharge circuit connects
Connect, on the one hand the output end for simulating discharge circuit is connected with the relay being arranged on multiple Measurement channels, simulates discharge circuit
Output end on the other hand be also connected with the input of preferred circuit；
The preferred circuit include be used for receive from simulation discharge circuit output electric signal modulus isolation circuit, modulus every
Output end from circuit is connected with data acquisition circuit, and data processing circuit is connected with after data acquisition circuit, at data
The output end of reason circuit is connected with serial communication circuit.
2. impact load according to claim 1 is to the long-range monitoring main frame of electric energy metering error, it is characterised in that the electricity
Signal includes voltage signal, current signal and pulse signal.
3. impact load according to claim 2 is to the long-range monitoring main frame of electric energy metering error, it is characterised in that when described
When electric signal is voltage signal, being provided with the preferred circuit is used to receive the first of simulation discharge circuit output voltage signal
Analog to digital conversion circuit, the first reference voltage generating circuit is connected with the input of the first analog to digital conversion circuit.
4. impact load according to claim 2 is to the long-range monitoring main frame of electric energy metering error, it is characterised in that when described
When electric signal is current signal, being provided with the preferred circuit is used to receive the second of simulation discharge circuit output current signal
Analog to digital conversion circuit, the second reference voltage generating circuit is connected with the input of the second analog to digital conversion circuit.
5. impact load according to claim 1 is to the long-range monitoring main frame of electric energy metering error, it is characterised in that be additionally provided with
The signal drive circuit being connected with the modulus isolation circuit, the input of signal drive circuit is connected with switching switch.
6. impact load according to claim 1 is to the long-range monitoring main frame of electric energy metering error, it is characterised in that the mould
Number isolation circuit is directly connected to data processing circuit.
7. impact load according to claim 2 is to the long-range monitoring main frame of electric energy metering error, it is characterised in that in sampling
The current transformer for being used for receiving current signal is provided with circuit, the current transformer is with the external of electronic compensation function
Formula straight-through current transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720123299.9U CN206431219U (en) | 2017-02-10 | 2017-02-10 | Impact load is to the long-range monitoring main frame of electric energy metering error |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720123299.9U CN206431219U (en) | 2017-02-10 | 2017-02-10 | Impact load is to the long-range monitoring main frame of electric energy metering error |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206431219U true CN206431219U (en) | 2017-08-22 |
Family
ID=59591179
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720123299.9U Active CN206431219U (en) | 2017-02-10 | 2017-02-10 | Impact load is to the long-range monitoring main frame of electric energy metering error |
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| Country | Link |
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| CN (1) | CN206431219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064669A (en) * | 2017-02-10 | 2017-08-18 | 国网浙江台州市黄岩区供电公司 | Impact load is to the long-range monitoring main frame of electric energy metering error |
-
2017
- 2017-02-10 CN CN201720123299.9U patent/CN206431219U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064669A (en) * | 2017-02-10 | 2017-08-18 | 国网浙江台州市黄岩区供电公司 | Impact load is to the long-range monitoring main frame of electric energy metering error |
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