CN204166117U - A kind of regulator for electric measuring instrument calibrating installation - Google Patents
A kind of regulator for electric measuring instrument calibrating installation Download PDFInfo
- Publication number
- CN204166117U CN204166117U CN201420472785.8U CN201420472785U CN204166117U CN 204166117 U CN204166117 U CN 204166117U CN 201420472785 U CN201420472785 U CN 201420472785U CN 204166117 U CN204166117 U CN 204166117U
- Authority
- CN
- China
- Prior art keywords
- potentiometer
- measuring instrument
- calibrating installation
- electric measuring
- instrument calibrating
- 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 70
- 230000001105 regulatory effect Effects 0.000 claims abstract description 32
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Abstract
The utility model provides a kind of regulator for electric measuring instrument calibrating installation, comprise and can carry out continuous lift adjustment to the voltage signal obtained from electric measuring instrument calibrating installation, and export the voltage regulator circuit of continuous lift adjustment voltage signal, receive continuous lift adjustment voltage signal and obtain current signal corresponding thereto, and continuous lift adjustment is carried out to current signal obtain continuous lift adjustment current signal, afterwards this continuous lift adjustment current signal is fed back to the current regulating circuit of electric measuring instrument calibrating installation as test current signal.Therefore, when after electric measuring instrument calibrating installation this regulator external, just can obtain the current signal of continuous lift adjustment as test current signal, and after the current signal of this continuous lift adjustment flows through the built-in resistor of electric measuring instrument calibrating installation, the voltage signal of continuous lift adjustment will be produced as test voltage signal, thus enable electric measuring instrument calibrating installation be elevated test continuously to test instrumentation.
Description
Technical field
The utility model relates to a kind of regulator.Relate in particular to a kind of regulator for electric measuring instrument calibrating installation.
Background technology
In substation operation process, usually all can use three-phase electric measuring instrument, as three-phase voltage meter, three-phase current table and three-phase power meter etc. are measured each equipment of transformer station, device or circuit, to ensure the normal operation of transformer station.In order to ensure the accuracy measured, need often to adopt electric measuring instrument calibrating installation to detect electric measuring instrument, whether accurate to judge the measurement of electric measuring instrument, avoid as far as possible because the inaccurate erroneous judgement caused measured by electric measuring instrument.
Find in the defect of process electric measuring instrument at present, part electric measuring instrument there will be the phenomenon of pointer card pin, the sticking of needle after using a period of time, test instrumentation occurs that the reason of this fault has a lot, such as moving part has wool fibre, pull spring comes off or the pointer that fractures is too low blocks dial plate, fixed coil or moving coil etc., so when verifying test instrumentation, lifting test continuously particularly important (after only having the test a period of time of lifting continuously, could confirm whether pointer occurs the phenomenons such as card pin, the sticking of needle) is carried out to test instrumentation pointer.
Present stage, transformer station mainly uses TCM-15B electric measuring instrument calibrating installation to detect electric measuring instrument, but there is the inadequate problem of step-by-step adjustment fineness in TCM-15B electric measuring instrument calibrating installation, also the continuous lift adjustment to test voltage, current signal cannot namely be realized, so also just test cannot be elevated continuously to test instrumentation pointer, the pointer that cannot detect test instrumentation is caused whether to there is the faults such as card pin, the sticking of needle.Therefore, when there are abnormal conditions in substation operation, electric measuring instrument likely also shows the data under transformer station's normal operating condition because of problems such as card pin, the sticking of needle, make work of transformer substation personnel cannot know the situation that transformer station breaks down in time, reduce the efficiency of failture evacuation, there is very large potential safety hazard; In the normal situation of substation operation, electric measuring instrument likely because the problem such as card pin, the sticking of needle but show transformer station there are abnormal conditions under data, work of transformer substation personnel are had to carry out malfunction elimination, cause the waste of manpower and materials.
Utility model content
For this reason, technical problem to be solved in the utility model is that electric measuring instrument calibrating installation of the prior art cannot be elevated test continuously to test instrumentation pointer, thus can not detect whether the pointer of test instrumentation exists the faults such as card pin, the sticking of needle, likely erroneous judgement is carried out to substation operation state, there is potential safety hazard, thus provide a kind of electric measuring instrument calibrating installation that can make to carry out the regulator for electric measuring instrument calibrating installation of lifting test continuously to test instrumentation.
For solving the problems of the technologies described above, the technical solution of the utility model is as follows:
The utility model provides a kind of regulator for electric measuring instrument calibrating installation, comprises voltage regulator circuit and current regulating circuit;
Described voltage regulator circuit, the voltage signal output end of its voltage input end and described electric measuring instrument calibrating installation couples, the voltage input end of its voltage output end and described current regulating circuit couples, described voltage regulator circuit carries out continuous lift adjustment to the voltage signal obtained from described electric measuring instrument calibrating installation, and the voltage signal of described continuous lift adjustment is transferred to described current regulating circuit;
Described current regulating circuit, first current signal end of its first current terminal and described electric measuring instrument calibrating installation couples, second current signal end of its second current terminal and described electric measuring instrument calibrating installation couples, described current regulating circuit obtains the voltage signal of continuous lift adjustment from described voltage regulator circuit, and then obtain the current signal corresponding with the voltage signal of described continuous lift adjustment, and the current signal that continuous lift adjustment obtains continuous lift adjustment is carried out to described current signal, afterwards the current signal of described continuous lift adjustment is fed back to described electric measuring instrument calibrating installation as test current signal by described first current signal end or described second current signal end.
The regulator of electric measuring instrument calibrating installation described in the utility model, described voltage regulator circuit comprises potentiometer R1 and potentiometer R2;
First stiff end of described potentiometer R1 and second stiff end of described potentiometer R2 form the voltage input end of described voltage regulator circuit, couple with the voltage signal output end of described electric measuring instrument calibrating installation, second stiff end of described potentiometer R1 and first stiff end of described potentiometer R2 couple, the sliding end of described potentiometer R1 and first stiff end of described potentiometer R1 couple, the sliding end of described potentiometer R2 and first stiff end of described potentiometer R2 couple, the sliding end of described potentiometer R1 and the sliding end of described potentiometer R2 form the voltage output end of described voltage regulator circuit.
Regulator for electric measuring instrument calibrating installation described in the utility model, described current regulating circuit comprises potentiometer R3 and potentiometer R4;
First stiff end of described potentiometer R3 and the sliding end of described potentiometer R4 form the voltage input end of described current regulating circuit, and the sliding end of first stiff end of described potentiometer R3 and described potentiometer R1 couples, the sliding end of described potentiometer R4 and the sliding end of described potentiometer R2 couple, the sliding end of described potentiometer R3 couples with first stiff end of described potentiometer R4 and the first current signal end of described electric measuring instrument calibrating installation respectively, the sliding end of described potentiometer R3 is the first current terminal of described current regulating circuit, the sliding end of described potentiometer R4 and the second current signal end of described electric measuring instrument calibrating installation couple, the sliding end of described potentiometer R4 is the second current terminal of described current regulating circuit.
Regulator for electric measuring instrument calibrating installation described in the utility model, described potentiometer R1 is coarse adjustment potentiometer, and described potentiometer R2 is fine tuning potentiometer.
Regulator for electric measuring instrument calibrating installation described in the utility model, described potentiometer R3 is coarse adjustment potentiometer, and described potentiometer R4 is fine tuning potentiometer.
Technique scheme of the present utility model has the following advantages compared to existing technology:
The utility model provides a kind of regulator for electric measuring instrument calibrating installation, comprise and can carry out continuous lift adjustment to the voltage signal obtained from electric measuring instrument calibrating installation, and export the voltage regulator circuit of the voltage signal of continuous lift adjustment, receive the voltage signal also acquisition current signal corresponding thereto of continuous lift adjustment, and the current signal that continuous lift adjustment obtains continuous lift adjustment is carried out to this current signal, afterwards the current signal of this continuous lift adjustment is fed back to the current regulating circuit of electric measuring instrument calibrating installation as test current signal.Therefore, when after electric measuring instrument calibrating installation this regulator external, just can obtain the current signal of continuous lift adjustment as test current signal, and after the current signal of this continuous lift adjustment flows through the built-in resistor of electric measuring instrument calibrating installation, the voltage signal of continuous lift adjustment will be produced as test voltage signal, thus enable electric measuring instrument calibrating installation be elevated test continuously to test instrumentation, so that whether the pointer of Timeliness coverage test instrumentation exists the faults such as card pin, the sticking of needle, be conducive to the safe operation of transformer station.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is the structured flowchart of the regulator for electric measuring instrument calibrating installation described in the utility model;
Fig. 2 is the circuit theory diagrams of the regulator for electric measuring instrument calibrating installation described in the utility model.
Embodiment
Embodiment 1
Present embodiments provide a kind of regulator for electric measuring instrument calibrating installation, as shown in Figure 1, comprise voltage regulator circuit and current regulating circuit.
Described voltage regulator circuit, the voltage signal output end of its voltage input end and described electric measuring instrument calibrating installation couples, the voltage input end of its voltage output end and described current regulating circuit couples, described voltage regulator circuit carries out continuous lift adjustment to the voltage signal obtained from described electric measuring instrument calibrating installation, and the voltage signal of described continuous lift adjustment is transferred to described current regulating circuit.
Described current regulating circuit, first current signal end of its first current terminal and described electric measuring instrument calibrating installation couples, second current signal end of its second current terminal and described electric measuring instrument calibrating installation couples, described current regulating circuit obtains the voltage signal of continuous lift adjustment from described voltage regulator circuit, and then obtain the current signal corresponding with the voltage signal of described continuous lift adjustment, and the current signal that continuous lift adjustment obtains continuous lift adjustment is carried out to described current signal, afterwards the current signal of described continuous lift adjustment is fed back to described electric measuring instrument calibrating installation as test current signal by described first current signal end or described second current signal end.
In embody rule, the regulator of described electric measuring instrument calibrating installation is connected by data line the corresponding interface with described electric measuring instrument calibrating installation, after described electric measuring instrument calibrating installation receiver voltage signal, by described voltage regulator circuit, voltage signal is carried out to the adjustment of lifting continuously, the voltage signal of multiple continuous lift adjustment will be got, after current regulating circuit receives the voltage signal of described continuous lift adjustment, the current signal matched with it can be got, afterwards continuous lift adjustment is carried out to current signal, just can get the current signal of continuous lift adjustment and be fed back to electric measuring instrument calibrating installation as test current signal, and this test current signal flows through the built-in resistance of electric measuring instrument calibrating installation, the voltage signal of continuous lift adjustment will be produced as test voltage signal, and the test instrumentation be connected with electric measuring instrument calibrating installation will get the test current signal of continuous lift adjustment and voltage signal in order to be elevated test continuously.
In sum, present embodiments provide a kind of electric measuring instrument calibrating installation that can make and the regulator for electric measuring instrument calibrating installation of lifting test is continuously carried out to test instrumentation, the pointer of Timeliness coverage test instrumentation whether can there is the faults such as card pin, the sticking of needle, be conducive to the safe operation of transformer station.
Embodiment 2
On the basis of embodiment 1, as shown in Figure 2, described voltage regulator circuit comprises potentiometer R1 and potentiometer R2.
First stiff end of described potentiometer R1 and second stiff end of described potentiometer R2 form the voltage input end of described voltage regulator circuit, couple with the voltage signal output end of described electric measuring instrument calibrating installation, second stiff end of described potentiometer R1 and first stiff end of described potentiometer R2 couple, the sliding end of described potentiometer R1 and first stiff end of described potentiometer R1 couple, the sliding end of described potentiometer R2 and first stiff end of described potentiometer R2 couple, the sliding end of described potentiometer R1 and the sliding end of described potentiometer R2 form the voltage output end of described voltage regulator circuit.
As the optional mode of one, described current regulating circuit comprises potentiometer R3 and potentiometer R4.
First stiff end of described potentiometer R3 and the sliding end of described potentiometer R4 form the voltage input end of described current regulating circuit, and the sliding end of first stiff end of described potentiometer R3 and described potentiometer R1 couples, the sliding end of described potentiometer R4 and the sliding end of described potentiometer R2 couple, the sliding end of described potentiometer R3 couples with first stiff end of described potentiometer R4 and the first current signal end of described electric measuring instrument calibrating installation respectively, the sliding end of described potentiometer R3 is the first current terminal of described current regulating circuit, the sliding end of described potentiometer R4 and the second current signal end of described electric measuring instrument calibrating installation couple, the sliding end of described potentiometer R4 is the second current terminal of described current regulating circuit.
As the optional mode of one, described potentiometer R1 is coarse adjustment potentiometer, and described potentiometer R2 is fine tuning potentiometer.
As the optional mode of one, described potentiometer R3 is coarse adjustment potentiometer, and described potentiometer R4 is fine tuning potentiometer.
In embody rule, voltage regulator circuit gets voltage signal from electric measuring instrument calibrating installation, the sliding end of regulator potentiometer R1 and the sliding end of potentiometer R2 carry out coarse adjustment and fine tuning to described voltage signal respectively afterwards, realize the continuous lift adjustment to described voltage signal, and the voltage signal of continuous lift adjustment is transferred to described current regulating circuit, the effective resistance two ends of potentiometer R3 and potentiometer R4 are made to add the voltage signal of continuous lift adjustment, accordingly, potentiometer R1, R2, R3, just the current signal matched with the voltage signal of described continuous lift adjustment is produced in the loop that R4 surrounds, if there is the demand regulated further, the sliding end of regulator potentiometer R3 and the sliding end of potentiometer R4 can carry out coarse adjustment and fine tuning to described current signal respectively, realize the continuous lift adjustment to described current signal, and the current signal of continuous lift adjustment is fed back to electric measuring instrument calibrating installation as test current signal by the first current signal end of electric measuring instrument calibrating installation or the second current signal end.
In embody rule, described potentiometer R1 and R3 model are coarse adjustment 15K ± 5%, and the model of described potentiometer R2 and R4 is fine tuning 2K ± 5%.
For the regulator of electric measuring instrument calibrating installation described in the present embodiment, manually the sliding end of regulator potentiometer changes the position of moving contact on potentiometer, and then the resistance value changed between moving contact and any one stiff end, achieve the continuous lift adjustment to test voltage signal and current signal, test can be elevated continuously to test instrumentation, whether can there is the faults such as card pin, the sticking of needle by Timeliness coverage test instrumentation pointer, precision easy and simple to handle is high.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain that the utility model creates.
Claims (5)
1. for a regulator for electric measuring instrument calibrating installation, it is characterized in that, comprise voltage regulator circuit and current regulating circuit;
Described voltage regulator circuit, the voltage signal output end of its voltage input end and described electric measuring instrument calibrating installation couples, the voltage input end of its voltage output end and described current regulating circuit couples, described voltage regulator circuit carries out continuous lift adjustment to the voltage signal obtained from described electric measuring instrument calibrating installation, and the voltage signal of described continuous lift adjustment is transferred to described current regulating circuit;
Described current regulating circuit, first current signal end of its first current terminal and described electric measuring instrument calibrating installation couples, second current signal end of its second current terminal and described electric measuring instrument calibrating installation couples, described current regulating circuit obtains the voltage signal of continuous lift adjustment from described voltage regulator circuit, and then obtain the current signal corresponding with the voltage signal of described continuous lift adjustment, and the current signal that continuous lift adjustment obtains continuous lift adjustment is carried out to described current signal, afterwards the current signal of described continuous lift adjustment is fed back to described electric measuring instrument calibrating installation as test current signal by described first current signal end or described second current signal end.
2. the regulator for electric measuring instrument calibrating installation according to claim 1, is characterized in that, described voltage regulator circuit comprises potentiometer R1 and potentiometer R2;
First stiff end of described potentiometer R1 and second stiff end of described potentiometer R2 form the voltage input end of described voltage regulator circuit, couple with the voltage signal output end of described electric measuring instrument calibrating installation, second stiff end of described potentiometer R1 and first stiff end of described potentiometer R2 couple, the sliding end of described potentiometer R1 and first stiff end of described potentiometer R1 couple, the sliding end of described potentiometer R2 and first stiff end of described potentiometer R2 couple, the sliding end of described potentiometer R1 and the sliding end of described potentiometer R2 form the voltage output end of described voltage regulator circuit.
3. the regulator for electric measuring instrument calibrating installation according to claim 2, is characterized in that, described current regulating circuit comprises potentiometer R3 and potentiometer R4;
First stiff end of described potentiometer R3 and the sliding end of described potentiometer R4 form the voltage input end of described current regulating circuit, and the sliding end of first stiff end of described potentiometer R3 and described potentiometer R1 couples, the sliding end of described potentiometer R4 and the sliding end of described potentiometer R2 couple, the sliding end of described potentiometer R3 couples with first stiff end of described potentiometer R4 and the first current signal end of described electric measuring instrument calibrating installation respectively, the sliding end of described potentiometer R3 is the first current terminal of described current regulating circuit, the sliding end of described potentiometer R4 and the second current signal end of described electric measuring instrument calibrating installation couple, the sliding end of described potentiometer R4 is the second current terminal of described current regulating circuit.
4. the regulator for electric measuring instrument calibrating installation according to claim 2, is characterized in that, described potentiometer R1 is coarse adjustment potentiometer, and described potentiometer R2 is fine tuning potentiometer.
5. the regulator for electric measuring instrument calibrating installation according to claim 3, is characterized in that, described potentiometer R3 is coarse adjustment potentiometer, and described potentiometer R4 is fine tuning potentiometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420472785.8U CN204166117U (en) | 2014-08-20 | 2014-08-20 | A kind of regulator for electric measuring instrument calibrating installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420472785.8U CN204166117U (en) | 2014-08-20 | 2014-08-20 | A kind of regulator for electric measuring instrument calibrating installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204166117U true CN204166117U (en) | 2015-02-18 |
Family
ID=52539794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420472785.8U Active CN204166117U (en) | 2014-08-20 | 2014-08-20 | A kind of regulator for electric measuring instrument calibrating installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204166117U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105487032A (en) * | 2016-01-04 | 2016-04-13 | 国网山东省电力公司青岛供电公司 | Verification device |
-
2014
- 2014-08-20 CN CN201420472785.8U patent/CN204166117U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105487032A (en) * | 2016-01-04 | 2016-04-13 | 国网山东省电力公司青岛供电公司 | Verification device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102721891B (en) | Test device for non-liner resistor type resonance eliminator | |
| CN202189094U (en) | Device for automatically measuring off-turning degree of resonance earthing power grid | |
| CN101718853A (en) | Detecting device and detecting method of single-phase double-loop metering electric energy meter | |
| CN103941079A (en) | On-line monitoring and fault diagnosis system for power distribution network PT | |
| CN102590627B (en) | Test instrument for high-voltage power transmission line | |
| CN204166117U (en) | A kind of regulator for electric measuring instrument calibrating installation | |
| CN103941216B (en) | Voltage transformer scene Automatic Check-out And Readiness Equipment | |
| CN103558578A (en) | Thermistor detection system for electronic electric energy meter and method of system | |
| CN113030622A (en) | Self-calibration-based automatic testing device for comprehensive characteristics of mutual inductor | |
| CN201697974U (en) | Cable and wireless integral nuclear phase instrument | |
| CN203870240U (en) | Voltage transformer on-site detector | |
| CN202600050U (en) | Tester for high tension transmission line | |
| CN104635043A (en) | Electronic sensing type high-voltage metering device and remote testing system | |
| CN107957568A (en) | Secondary Circuit of Potential Transformer multipoint earthing Quick positioning instrument and lookup method | |
| CN203849352U (en) | Apparatus for diagnosing fault of damping loop of capacitor voltage transformer | |
| CN203858354U (en) | On-site automatic detector for voltage transformer | |
| CN201421497Y (en) | Anti-interference device of field calibrating device of current transformer | |
| CN203444016U (en) | Resistance measuring device for circuit breaker comprising varistor | |
| CN108181599B (en) | Uninterrupted replacement and checking method for core-through current transformer of transformer substation direct-current system | |
| CN101556317A (en) | Anti-interference device for on-site calibration device of current transformer | |
| CN202676830U (en) | Non-linear resistive type resonance eliminating resistor testing device | |
| CN206132972U (en) | Electronic transformer and traditional mutual -inductor measurement characteristic contrastive analysis system | |
| CN103941215B (en) | A kind of voltage transformer (VT) site inspection instrument | |
| CN202720260U (en) | Intelligent electric power detection meter | |
| CN210323229U (en) | Slide wire variable resistance contact position prejudging device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |