CN203101622U - Testing system for 220 V output voltage multi-output voltage mutual inductor - Google Patents
Testing system for 220 V output voltage multi-output voltage mutual inductor Download PDFInfo
- Publication number
- CN203101622U CN203101622U CN 201320043031 CN201320043031U CN203101622U CN 203101622 U CN203101622 U CN 203101622U CN 201320043031 CN201320043031 CN 201320043031 CN 201320043031 U CN201320043031 U CN 201320043031U CN 203101622 U CN203101622 U CN 203101622U
- Authority
- CN
- China
- Prior art keywords
- mutual
- inductor
- mutual inductor
- output voltage
- output voltages
- 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.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 238000004804 winding Methods 0.000 claims abstract description 22
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000002459 sustained effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
Images
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to a testing system for a 220 V output voltage multi-output voltage mutual inductor. The testing system for a 220 V output voltage multi-output voltage mutual inductor consists of an automatic voltage adjusting transformer, an automatic control and switching circuit, a first load box, a second load box, and a mutual inductor calibrating instrument, wherein an output end of an automatic control circuit in the automatic control and switching circuit is connected with a control end of the automatic voltage adjusting transformer, an output end of the automatic voltage adjusting transformer is connected with the primary stage of a tested multi-output voltage mutual inductor, various secondary windings of the tested multi-output voltage mutual inductor are connected with an automatic switching circuit in the automatic control and switching circuit, and the first load box and the second load box are respectively in bidirectional connection with the tested multi-output voltage mutual inductor. The testing system for a 220 V output voltage multi-output voltage mutual inductor is advantageous in that the 220 V output voltage multi-output voltage mutual inductor can be automatically tested, and the testing system can automatically switch among the multiple output ends. The testing system for a 220 V output voltage multi-output voltage mutual inductor is characterized by simple utilization method and accurate and reliable testing data.
Description
Technical field
The utility model relates to a kind of multi-output voltages mutual inductor measuring test system of 220V output voltage.
Background technology
The secondary voltage of present mutual inductor measuring test system all is
V, 100V, maximum 150V, and only can carry out single-path testing, and needing manually to connect different second test loops for the voltage transformer (VT) of many outputs, the volume that not many outputs are automaticallyed switch and secondary output voltage can reach 220V is rationed the power supply and is pressed the mutual inductor measuring test system.
The supply voltage of single-phase intelligent ammeter is 220V, and its proving installation is generally multi-epitope, 24 epi-positions or 48 epi-positions, and the secondary voltage that adopts 24 tunnel or 48 tunnel outputs is that the voltage transformer (VT) of 220V carries out each epi-position power supply, input voltage is similarly 220V.The metering accuracy of the voltage transformer (VT) of this multichannel output is related to the precision problem that intelligent electric energy meter detects, and needs to guarantee its precision by regularly detecting.By use, involvement aspect is wider in the measurement centre of respectively netting province electric company and prefectures and cities electric company that the intelligent electric meter pick-up unit is arranged for this type of voltage transformer (VT).
The secondary output voltage of general voltage transformer (VT) be 100V or
V, thus the secondary voltage that can test of mutual inductor measuring test system also be 100V or
V is 150V to the maximum, can not be that the voltage transformer (VT) of 220V carries out error testing to the output voltage in the intelligent electric meter pick-up unit, also just can't guarantee the accuracy of intelligent electric meter pick-up unit.
The utility model content
Technical problem to be solved in the utility model provides a kind of multi-output voltages mutual inductor measuring test system of 220V output voltage.
The technical scheme that its technical matters that solves the utility model adopts:
The utility model is by automatic powerstat, control and commutation circuit, first load box, second load box and mutual-inductor tester are formed automatically; The control end of one tunnel output termination automatic powerstat of the automatic control circuit in described automatic control and the commutation circuit, the tested multi-output voltages mutual inductor of output termination of automatic powerstat elementary, secondary each winding of described tested multi-output voltages mutual inductor connects the automatic switch-over circuit in described automatic control and the commutation circuit, described first load box and second load box respectively with tested two-way connection of multi-output voltages mutual inductor, described tested multi-output voltages mutual inductor is connected with mutual-inductor tester is two-way, and described automatic control and commutation circuit are connected with mutual-inductor tester is two-way.
Native system makes its error information that can test many output mutual inductor of rated voltage 220V by improving common mutual-inductor tester, has improved the load box of common voltage transformer (VT), makes it can be as the test load case of 220V rated voltage mutual inductor.Utilize the switching between control automatically and commutation circuit control automatic powerstat and tested each Secondary Winding of multi-output voltages mutual inductor, realized to rated voltage being the autorun of respectively exporting the winding error precision of the multi-output voltages mutual inductor of 220V.The utility model only needs the standard of comparison table just passable with the error of respectively exporting between the winding of winding and tested multi-output voltages mutual inductor.
The beneficial effects of the utility model are as follows:
(1) can test automatically the multi-output voltages mutual inductor of 220V output voltage, can between a plurality of output terminals, automatically switch.
(2) using method is simple, and test data accurately and reliably.
Description of drawings
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is the circuit theory diagrams of control automatically and commutation circuit.
Fig. 3 is the commutation circuit schematic diagram of normally opened contact of the relay J 1-Jn of automatic switch-over circuit.
Fig. 4 is the internal circuit schematic diagram of HEF-H type mutual-inductor tester.
Fig. 5 is the internal circuit schematic diagram (except the autotransformer B1) of Fy50 load box.
Fig. 6 is logic function figure of the present utility model.
Embodiment
By the described embodiment of Fig. 1-Fig. 6 as can be known, it by automatic powerstat 1, automatically control and commutation circuit 2, first load box 3, second load box 4 and mutual-inductor tester 5 form; The control end of one tunnel output termination automatic powerstat 1 of the automatic control circuit in described automatic control and the commutation circuit, the tested multi-output voltages mutual inductor 6 of output termination of automatic powerstat 1 elementary, secondary each winding of described tested multi-output voltages mutual inductor 6 connects the automatic switch-over circuit in described automatic control and the commutation circuit 2, described first load box 3 and second load box 4 respectively with tested 6 two-way connections of multi-output voltages mutual inductor, described tested multi-output voltages mutual inductor 6 and 5 two-way connections of mutual-inductor tester, described automatic control and commutation circuit 2 and 5 two-way connections of mutual-inductor tester.
Described automatic control and commutation circuit 2 are made up of automatic control circuit and automatic switch-over circuit, and automatic control circuit is made up of single-chip microcomputer U1 and peripheral cell crystal y0, capacitor C 1-C2, step motor drive chip U2;
The input end of described step motor drive chip U2 is connected on PB0-PB5 mouth of single-chip microcomputer U1; The SDA mouth of described single-chip microcomputer U1 and SDL mouth connect the respective input of mutual-inductor tester 5 respectively;
Described automatic switch-over circuit is made up of transistor VT1-VTn, relay J 1-Jn, sustained diode 1-Dn, resistance R 1-Rn; The base stage of transistor VT1-VTn is passed through PA0-PAn mouth that resistance R 1-Rn meets single-chip microcomputer U1 respectively, and relay J 1-Jn is connected on respectively between the collector and ground of transistor VT1-VTn.
The end of normally opened contact J1-1-Jn-1 of described relay J 1-Jn all connects 1 pin of mutual-inductor tester 5, its other end connects the end of the Secondary Winding L1-Ln of tested multi-output voltages mutual inductor 6 successively respectively, and the other end of the Secondary Winding L1 of tested multi-output voltages mutual inductor 6-Ln all connects 4 pin of mutual-inductor tester 5;
The connection terminal M of described first load box 3 and N are connected on the two ends of the Secondary Winding L0 of tested multi-output voltages mutual inductor 6, and 4 pin of the termination mutual-inductor tester 5 of described Secondary Winding L0, its other end connect 2 pin and 3 pin of mutual-inductor tester 5 respectively;
The connection terminal M of described second load box 4 is connected with the public connecting end of the Secondary Winding of tested multi-output voltages mutual inductor 6, and the connection terminal N of second load box 4 is connected with the public connecting end of described normally opened contact J1-1-Jn-1;
1 pin of described mutual- inductor tester 5 and 2 pin are error input end △ U; 3 pin of mutual- inductor tester 5 and 4 pin are normal voltage input end Up.
The model of described single-chip microcomputer U1 is Atmega16, and the model of step motor drive chip U2 is L298N.
The model of described mutual-inductor tester 5 is HEF-H, and the no-load voltage ratio of secondary step-down transformer Tp wherein changes 2.2 times of former no-load voltage ratio into, transfer resistance R wherein
UResistance change 2.2 times of former resistance into.
The model of described first load box 3 and second load box 4 is Fy50, and at the transformer of the coupling certainly B1 of the 220/110V of input termination of first load box 3 and second load box 4.
Described automatic powerstat 1 is the automatic powerstat of step motor control.
T among Fig. 4
BBe an auxiliary potential transformer, K1, K2 are single-pole double-throw switch (SPDT), and T is a transformer, and its secondary winding is connected to and exchanges zero indicator D.G is the adjustable electric guide box, and C is the adjustable electric tank; R
UBe transfer resistance, K, D are the error of measurement end.
In Fig. 5, r10-rn0 is a resistance, and r1-rn is a resistance, and L10-Ln0 is an inductance, and K10-Kn0 is a single-pole double-throw switch (SPDT).
In Fig. 6, the stepper motor of native system in automatic powerstat 1 sends control signal, driving power boosts, monitor the situation of boosting by mutual-inductor tester 5, according to the voltage transformer (VT) vertification regulation, in 80%, 100% of rated voltage, 120% 3 point reads the error information that mutual-inductor tester 5 is measured, the line item of going forward side by side.After finishing the error testing of a winding, 1 step-down of control automatic powerstat, and send control command to automatic switch-over circuit, test channel is switched to the next Secondary Winding of tested multi-output voltages mutual inductor, the repetitive error test process is until the test of finishing tested all Secondary Winding of multi-output voltages mutual inductor.
Claims (7)
1. the multi-output voltages mutual inductor measuring test system of a 220V output voltage is characterized in that by automatic powerstat (1), control and commutation circuit (2), first load box (3), second load box (4) and mutual-inductor tester (5) are formed automatically; The control end of one tunnel output termination automatic powerstat (1) of the automatic control circuit in described automatic control and the commutation circuit, the tested multi-output voltages mutual inductor of the output termination of automatic powerstat (1) (6) elementary, secondary each winding of described tested multi-output voltages mutual inductor (6) connects the automatic switch-over circuit in described automatic control and the commutation circuit (2), described first load box (3) and second load box (4) respectively with two-way connection of tested multi-output voltages mutual inductor (6), described tested multi-output voltages mutual inductor (6) and two-way connection of mutual-inductor tester (5), described automatic control and commutation circuit (2) and two-way connection of mutual-inductor tester (5).
2. the multi-output voltages mutual inductor measuring test system of a kind of 220V output voltage according to claim 1, it is characterized in that described automatic control and commutation circuit (2) be made up of automatic control circuit and automatic switch-over circuit, automatic control circuit is made up of single-chip microcomputer U1 and peripheral cell crystal y0, capacitor C 1-C2, step motor drive chip U2;
The input end of described step motor drive chip U2 is connected on PB0-PB5 mouth of single-chip microcomputer U1; The SDA mouth of described single-chip microcomputer U1 and SDL mouth connect the respective input of mutual-inductor tester (5) respectively;
Described automatic switch-over circuit is made up of transistor VT1-VTn, relay J 1-Jn, sustained diode 1-Dn, resistance R 1-Rn; The base stage of transistor VT1-VTn is passed through PA0-PAn mouth that resistance R 1-Rn meets single-chip microcomputer U1 respectively, and relay J 1-Jn is connected on respectively between the collector and ground of transistor VT1-VTn.
3. the multi-output voltages mutual inductor measuring test system of a kind of 220V output voltage according to claim 2, it is characterized in that the end of normally opened contact J1-1-Jn-1 of described relay J 1-Jn all connects 1 pin of mutual-inductor tester (5), its other end connects the end of the Secondary Winding L1-Ln of tested multi-output voltages mutual inductor (6) successively respectively, and the other end of the Secondary Winding L1-Ln of tested multi-output voltages mutual inductor (6) all connects 4 pin of mutual-inductor tester (5);
The connection terminal M of described first load box (3) and N are connected on the two ends of the Secondary Winding L0 of tested multi-output voltages mutual inductor (6), 4 pin of the termination mutual-inductor tester (5) of described Secondary Winding L0, its other end connect 2 pin and 3 pin of mutual-inductor tester (5) respectively;
The connection terminal M of described second load box (4) is connected with the public connecting end of the Secondary Winding of tested multi-output voltages mutual inductor (6), and the connection terminal N of second load box (4) is connected with the public connecting end of described normally opened contact J1-1-Jn-1;
1 pin of described mutual-inductor tester (5) and 2 pin are error input end △ U; 3 pin of mutual-inductor tester (5) and 4 pin are normal voltage input end Up.
4. the multi-output voltages mutual inductor measuring test system of a kind of 220V output voltage according to claim 3, the model that it is characterized in that described single-chip microcomputer U1 is Atmega16, the model of step motor drive chip U2 is L298N.
5. the multi-output voltages mutual inductor measuring test system of a kind of 220V output voltage according to claim 4, the model that it is characterized in that described mutual-inductor tester (5) is HEF-H, and the no-load voltage ratio of secondary step-down transformer Tp wherein changes 2.2 times of former no-load voltage ratio into, transfer resistance R wherein
UResistance change 2.2 times of former resistance into.
6. the multi-output voltages mutual inductor measuring test system of a kind of 220V output voltage according to claim 5, the model that it is characterized in that described first load box (3) and second load box (4) is Fy50, and at the transformer of the coupling certainly B1 of the 220/110V of input termination of first load box (3) and second load box (4).
7. the multi-output voltages mutual inductor measuring test system of a kind of 220V output voltage according to claim 6 is characterized in that described automatic powerstat (1) is the automatic powerstat of step motor control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320043031 CN203101622U (en) | 2013-01-25 | 2013-01-25 | Testing system for 220 V output voltage multi-output voltage mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320043031 CN203101622U (en) | 2013-01-25 | 2013-01-25 | Testing system for 220 V output voltage multi-output voltage mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203101622U true CN203101622U (en) | 2013-07-31 |
Family
ID=48853011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320043031 Expired - Fee Related CN203101622U (en) | 2013-01-25 | 2013-01-25 | Testing system for 220 V output voltage multi-output voltage mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203101622U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760395A (en) * | 2014-01-02 | 2014-04-30 | 国家电网公司 | Multiple-output electronic voltage transformer for GIS |
| CN103941215A (en) * | 2014-05-15 | 2014-07-23 | 李峰 | Filed detector for voltage transformer |
| CN103941216A (en) * | 2014-05-19 | 2014-07-23 | 李峰 | Automatic voltage transformer on-site inspection tester |
| CN104062621A (en) * | 2014-06-12 | 2014-09-24 | 山东省计量科学研究院 | Isolation voltage mutual inductor error checking method and checking system |
| CN104090254A (en) * | 2014-07-04 | 2014-10-08 | 天津市百利电气有限公司 | Current transformer process error detection device and control method |
| CN104820161A (en) * | 2015-05-21 | 2015-08-05 | 国家电网公司 | Multi-tap current transformer secondary wiring detection device |
| CN105929353A (en) * | 2016-06-02 | 2016-09-07 | 河北省电力建设调整试验所 | Wireless transmission-based voltage regulator control method for extra-high voltage current transformer accuracy field tests |
| CN107643502A (en) * | 2017-09-26 | 2018-01-30 | 广西电网有限责任公司电力科学研究院 | A kind of high-voltage electrical apparatus detecting instrument check device |
| CN107728092A (en) * | 2017-10-02 | 2018-02-23 | 国网山西省电力公司电力科学研究院 | The automatic precision pre-check device and method of calibration of Transformer Winding no-load voltage ratio tester |
| CN112557741A (en) * | 2020-12-25 | 2021-03-26 | 广东电网有限责任公司 | Secondary voltage detection device and detection method for voltage transformer |
-
2013
- 2013-01-25 CN CN 201320043031 patent/CN203101622U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760395A (en) * | 2014-01-02 | 2014-04-30 | 国家电网公司 | Multiple-output electronic voltage transformer for GIS |
| CN103941215A (en) * | 2014-05-15 | 2014-07-23 | 李峰 | Filed detector for voltage transformer |
| CN103941215B (en) * | 2014-05-15 | 2016-04-13 | 国家电网公司 | A kind of voltage transformer (VT) site inspection instrument |
| CN103941216A (en) * | 2014-05-19 | 2014-07-23 | 李峰 | Automatic voltage transformer on-site inspection tester |
| CN104062621A (en) * | 2014-06-12 | 2014-09-24 | 山东省计量科学研究院 | Isolation voltage mutual inductor error checking method and checking system |
| CN104090254A (en) * | 2014-07-04 | 2014-10-08 | 天津市百利电气有限公司 | Current transformer process error detection device and control method |
| CN104820161A (en) * | 2015-05-21 | 2015-08-05 | 国家电网公司 | Multi-tap current transformer secondary wiring detection device |
| CN104820161B (en) * | 2015-05-21 | 2017-11-07 | 国家电网公司 | A kind of multi-tap secondary wiring of current mutual inductor detection means |
| CN105929353A (en) * | 2016-06-02 | 2016-09-07 | 河北省电力建设调整试验所 | Wireless transmission-based voltage regulator control method for extra-high voltage current transformer accuracy field tests |
| CN107643502A (en) * | 2017-09-26 | 2018-01-30 | 广西电网有限责任公司电力科学研究院 | A kind of high-voltage electrical apparatus detecting instrument check device |
| CN107728092A (en) * | 2017-10-02 | 2018-02-23 | 国网山西省电力公司电力科学研究院 | The automatic precision pre-check device and method of calibration of Transformer Winding no-load voltage ratio tester |
| CN112557741A (en) * | 2020-12-25 | 2021-03-26 | 广东电网有限责任公司 | Secondary voltage detection device and detection method for voltage transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203101622U (en) | Testing system for 220 V output voltage multi-output voltage mutual inductor | |
| CN206773133U (en) | Electric switch equipment combined test stand | |
| CN204536484U (en) | Integration insulation, pressure resistant testing device | |
| CN103698621A (en) | Vehicle-mounted transformer comprehensive test system | |
| CN101782638B (en) | Calibration device and method capable of measuring multiple current transformers once | |
| CN207283867U (en) | A kind of ultrathin type primary side feedback LED drive control circuits | |
| CN203479934U (en) | Vehicle-mounted integrated testing system for transformer | |
| CN104991482B (en) | Double no-load voltage ratio metering intelligent controlling devices and its control mode | |
| CN2932394Y (en) | Metering device with a wide current measuring range | |
| CN111239652A (en) | Polarity testing device for current transformer | |
| CN108845286B (en) | Simultaneous calibration device for two current loops of single-phase electric energy meter | |
| CN104020372A (en) | Acquisition terminal equipment communication interface load capacity tester with communication module | |
| CN105259382A (en) | Multi-transformation ratio current transformer unified multiplying power metering method and device | |
| CN116106659B (en) | Distribution transformer energy efficiency high-precision test system and application | |
| CN107356810A (en) | Digital electricity meter based on MSP430FEX family chips | |
| CN107576906A (en) | A kind of portable relay checking platform and its application method | |
| CN204241579U (en) | Portable type current transformer on-site calibrator | |
| CN206756908U (en) | A kind of Campatible electric energy meter meter adapting-seat | |
| CN203705524U (en) | Universal multifunctional integrated comprehensive test bench | |
| CN203849330U (en) | DC (direct current) resistance measuring instrument for AC (alternating current) loop | |
| CN204649852U (en) | A kind of improved automatic Multifunctional transformation ratio test device | |
| CN203551765U (en) | Zero load on-site electric energy meter testing device | |
| CN202548192U (en) | Power input impulse current testing circuit | |
| CN202177693U (en) | Industrial frequency withstand voltage and insulation resistance testing apparatus for current transformer | |
| CN204595529U (en) | Two no-load voltage ratio metering intelligent controlling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20170125 |