CN107677915A - Use mutual inductor polarity measurement apparatus and its measuring method in Portable metering scene - Google Patents
Use mutual inductor polarity measurement apparatus and its measuring method in Portable metering scene Download PDFInfo
- Publication number
- CN107677915A CN107677915A CN201710684406.XA CN201710684406A CN107677915A CN 107677915 A CN107677915 A CN 107677915A CN 201710684406 A CN201710684406 A CN 201710684406A CN 107677915 A CN107677915 A CN 107677915A
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- transformer
- power supply
- connection
- binding post
- switch
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/62—Testing of transformers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/72—Testing of electric windings
Abstract
The present invention relates to a kind of Portable metering scene to use mutual inductor polarity measurement apparatus and its measuring method, belong to power industry field of measuring techniques, the positive pole connection starting switch SA of power supply, starting switch SA switchs the electrode input end of K1 connection ammeters by testing, the negative pole of the cathode output end connection power supply of ammeter, the both ends of ammeter connect the positive binding post S1 of transformer secondary side by wire respectively and transformer secondary side bears binding post S2, starting switch SA switchs K0 connection neutral gears by testing, starting switch SA is by testing the positive binding post P1 of switch K2 connection transformer primary sides, transformer primary side bears the negative pole that binding post P2 connects power supply.The present invention is simple in construction, and reasonable in design, cost is low, easy to carry, saves manpower, is capable of the polarity measurement of single completion transformer, can avoid the loose contact problem of equipment, ensure that the stability and accuracy of measurement result.
Description
Technical field
The present invention relates to a kind of Portable metering scene to use mutual inductor polarity measurement apparatus and its measuring method, belongs to electric power
Industry field of measuring techniques.
Background technology
Mutual inductor polarity measurement generally mainly has three kinds of methods, first, direct current method；Second, alternating current method；Third, instrument method.Its
In, there is the problem of extraction power supply difficulty etc. in alternating current method, and security risk be present therefore do not use typically；Instrument method is only suitable only for
Used during transformer laboratory, be not suitable for event job site, therefore, we are mainly entered using direct current method at the construction field (site) at present
The measurement of row mutual inductor polarity.
When direct current method carries out the measurement of mutual inductor polarity, mainly include battery method and dry cell method, due to Current Mutual Inductance
The once survey impedance of device is smaller, and the battery tension used can not be too high, is usually no more than 6 volts, but battery method is using
When, not only exist and carry the problem of inconvenient, accumulator explosion can be also caused due to improper use, especially in summer, have
Higher danger, when being measured using dry cell, loose contact easily is easily caused because wiring is lack of standardization, influence test effect
Fruit, and need more people to participate in coordinating, mismate will result in test errors or data are unstable.
The content of the invention
Deficiency of the prior art, the problem to be solved in the present invention are more than：A kind of simple in construction, design conjunction is provided
Reason, cost is low, easy to carry, saves manpower, is not only able to the single polarity measurement for completing transformer, additionally it is possible to avoid equipment line
The loose contact problem on road, ensure that the stability of measurement result and the Portable metering scene of accuracy are measured with mutual inductor polarity
Device and its measuring method.
The technical solution adopted for the present invention to solve the technical problems is：
Described Portable metering scene mutual inductor polarity measurement apparatus, including lower house, lower house top both sides are set
Guided way is put, slide cover is installed in guided way, corresponding slide cover sets baffle plate on the lower house of guided way end, slided
Ammeter and transformer secondary side positive and negative binding post are set on cover plate, set power supply, starting switch SA, test to open in lower house
Close button and the positive and negative binding post of transformer primary side；
The positive pole connection starting switch SA, starting switch SA of described power supply is by testing switch K1 connections ammeter just
Pole input, the negative pole of the cathode output end connection power supply of ammeter, the both ends of ammeter connect transformer by wire respectively
It is empty by testing switch K0 connections that the positive binding post S1 of secondary side and transformer secondary side bear binding post S2, starting switch SA
Shelves, starting switch SA switch the K2 positive binding post P1 of connection transformer primary side by testing, and transformer primary side bears terminals
Sub- P2 connects the negative pole of power supply.
All components are integrated with mutual inductor polarity measurement apparatus in Portable metering scene, are convenient for carrying,
And the stabilization of connection is well, can ensureing equipment, each several part contact is good when in use, ensure that the stability and standard of measurement result
True property, whole process only need a people to complete, and save manpower, reduce the workload of staff, simple in construction, design
Rationally, cost is low, has stronger practicality.
Described ammeter both ends shunt voltage table, test switch K1 are defeated by the positive pole of change-over switch S1 connection voltmeters
Enter end, voltmeter cathode output end connection power supply negative pole, test switch K1 by change-over switch S2 connections ammeter just
Pole input, the negative pole of the cathode output end connection power supply of ammeter, voltmeter are arranged on slide cover.It can carry out simultaneously
The polarity measurement of current transformer and voltage transformer, improve the scope of application of equipment.
Described power supply is connected using two section dry cells, two section dry cells by copper cash.Cost is low, is convenient to use and carry.
Described power supply uses discharge power supply, and discharge power supply connects rechargeable battery, rechargeable battery by DC/DC boost modules
Charging power modules are connected, positive pole connection the starting switch SA, starting switch SA of discharge power supply are surveyed by adjustable resistor R connections
Try shift knob.
The described Portable metering scene measuring method of mutual inductor polarity measurement apparatus, comprises the following steps：
(1) test switch K1 is closed, ammeter is tested or whether voltmeter is normal, if being normally carried out lower step work；
(2) primary side of transformer is connected into the positive binding post P1 of transformer primary side respectively and transformer primary side is born and connect
Line terminals P2, the secondary side of transformer connects the positive binding post S1 of transformer secondary side respectively and transformer secondary side bears terminals
Sub- S2；
(3) it is on switching SA, by pressing test switch K2, transformer is carried out by dry cell or discharge power supply
Electric discharge, primary current produces secondary current by transformer, after secondary current flows through voltmeter or ammeter, by voltmeter or
The polarity of the beat of pointer direction determining transformer of ammeter, so as to judge whether secondary connection is correct, wherein, pass through the electricity that discharges
When source is discharged transformer, size of current is adjusted by adjustable resistor R.
Beneficial effect is possessed by the present invention：
Portable metering scene of the present invention is simple in construction with mutual inductor polarity measurement apparatus and its measuring method, if
Meter is reasonable, and cost is low, easy to carry, saves manpower, and the polarity measurement work of transformer can be completed by a people, reduce work
Make the workload of personnel, and connective stability is good, and equipment measurement result caused by the reasons such as loose contact can be avoided unstable
The problems such as qualitative and inaccuracy.
Brief description of the drawings
Fig. 1 is the circuit diagram of embodiments of the invention 1；
Fig. 2 is the circuit diagram of embodiments of the invention 2；
Fig. 3 is the circuit diagram of embodiments of the invention 3；
Fig. 4 is the circuit diagram of embodiments of the invention 4；
Fig. 5 is the structural representation of embodiments of the invention 1；
Fig. 6 is the structural representation of embodiments of the invention 2；
Fig. 7 is the inside top figure of the lower house of the present invention；
Wherein, 1, lower house；2nd, baffle plate；3rd, guided way；4th, power supply；5th, the positive and negative binding post of transformer primary side；6th, it is sliding
Dynamic cover plate；7th, the positive and negative binding post of transformer secondary side；8th, ammeter；9th, shift knob is tested；10th, voltmeter.
Embodiment
Embodiments of the invention are described further below in conjunction with the accompanying drawings：
Embodiment 1：
As shown in Fig. 1, Fig. 5 and Fig. 7, mutual inductor polarity measurement apparatus is used at Portable metering scene of the present invention, is wrapped
Lower house 1 is included, the top both sides of lower house 1 set guided way 3, and slide cover 6 is installed in guided way 3, and corresponding slide cover 6 is being led
Baffle plate 2 is set on to the lower house 1 of the end of rail 3, ammeter 8 and the positive and negative terminals of transformer secondary side are set on slide cover 6
Son 7, lower house 1 is interior to set two section dry cells, starting switch SA, test shift knob 9 and the positive and negative terminals of transformer primary side
Son 5；
The positive pole connection starting switch SA, starting switch SA of described dry cell is by testing switch K1 connections ammeter 8
Electrode input end, ammeter 8 cathode output end connection dry cell negative pole, the both ends of ammeter 8 are connected by wire respectively
Meet the positive binding post S1 of transformer secondary side and transformer secondary side bears binding post S2, starting switch SA and switchs K0 by testing
Neutral gear is connected, starting switch SA switchs the K2 positive binding post P1 of connection transformer primary side by testing, and transformer primary side is born
Binding post P2 connects the negative pole of dry cell.
Embodiment 2：
As shown in Fig. 2, Fig. 6 and Fig. 7, on the basis of embodiment 1, the both ends shunt voltage table 10 of ammeter 8, test switch
K1 by the electrode input end of change-over switch S1 connections voltmeter 10, the cathode output end connection dry cell of voltmeter 10 it is negative
Pole, test switch electrode input ends of the K1 by change-over switch S2 connections ammeter 8, the cathode output end connection of ammeter 8 are dry
The negative pole of battery, voltmeter 10 are arranged on slide cover 6.
Embodiment 3：
As shown in figure 3, on the basis of embodiment 1, dry cell uses discharge power supply, and discharge power supply is boosted by DC/DC
Module connects rechargeable battery, rechargeable battery connection charging power modules, and the positive pole of discharge power supply connects starting switch SA, and startup is opened
Close SA and pass through adjustable resistor R connecting tests shift knob 9.
Embodiment 4：
As shown in figure 4, on the basis of embodiment 2, dry cell uses discharge power supply, and discharge power supply is boosted by DC/DC
Module connects rechargeable battery, rechargeable battery connection charging power modules, and the positive pole of discharge power supply connects starting switch SA, and startup is opened
Close SA and pass through adjustable resistor R connecting tests shift knob 9.
The described Portable metering scene measuring method of mutual inductor polarity measurement apparatus, comprises the following steps：
(1) test switch K1 is closed, ammeter is tested or whether voltmeter is normal, if being normally carried out lower step work；
(2) primary side of transformer is connected into the positive binding post P1 of transformer primary side respectively and transformer primary side is born and connect
Line terminals P2, the secondary side of transformer connects the positive binding post S1 of transformer secondary side respectively and transformer secondary side bears terminals
Sub- S2；
(3) it is on switching SA, by pressing test switch K2, transformer is carried out by dry cell or discharge power supply
Electric discharge, primary current produces secondary current by transformer, after secondary current flows through voltmeter or ammeter, by voltmeter or
The polarity of the beat of pointer direction determining transformer of ammeter, so as to judge whether secondary connection is correct, wherein, pass through the electricity that discharges
When source is discharged transformer, size of current is adjusted by adjustable resistor R.
The present invention is simple in construction, and reasonable in design, cost is low, easy to carry, saves manpower, single can complete transformer
Polarity measurement, the workload of staff is reduced, and connective stability is good, and equipment can be avoided to be made because of reasons such as loose contacts
Into measurement result unstability and inaccuracy the problems such as, there is stronger practicality.
The present invention is not limited in above-mentioned embodiment, essential scope of the those of ordinary skill in the art in the present invention
The variations, modifications, additions or substitutions inside made, it should also belong to protection scope of the present invention.
Claims (6)
1. mutual inductor polarity measurement apparatus is used at a kind of Portable metering scene, it is characterised in that：Including lower house (1), lower house
(1) top both sides set guided way (3), slide cover (6) are installed in guided way (3), corresponding slide cover (6) is in guided way
(3) baffle plate (2) is set on the lower house (1) of end, sets ammeter (8) and transformer secondary side positive and negative on slide cover (6)
Binding post (7), lower house (1) is interior to set power supply (4), starting switch SA, test shift knob (9) and transformer primary side just
Negative binding post (5)；
Positive pole connection the starting switch SA, starting switch SA of described power supply (4) are by testing switch K1 connection ammeters (8)
Electrode input end, the negative pole of the cathode output end connection power supply (4) of ammeter (8), the both ends of ammeter (8) pass through wire respectively
Connect the positive binding post S1 of transformer secondary side and transformer secondary side is born binding post S2, starting switch SA and switched by testing
K0 connection neutral gears, starting switch SA switch the K2 positive binding post P1 of connection transformer primary side, transformer primary side by testing
Negative binding post P2 connects the negative pole of power supply (4).
2. mutual inductor polarity measurement apparatus is used at Portable metering scene according to claim 1, it is characterised in that：Described
Ammeter (8) both ends shunt voltage table (10), test switch K1 are inputted by the positive pole of change-over switch S1 connection voltmeters (10)
End, the negative pole of the cathode output end connection power supply (4) of voltmeter (10), test switch K1 pass through change-over switch S2 connection ammeters
(8) electrode input end, the negative pole of the cathode output end connection power supply (4) of ammeter (8), voltmeter (10) are arranged on slide lid
On plate (6).
3. mutual inductor polarity measurement apparatus is used at Portable metering scene according to claim 1 or 2, it is characterised in that：Institute
The power supply (4) stated is connected using two section dry cells, two section dry cells by copper cash.
4. mutual inductor polarity measurement apparatus is used at Portable metering scene according to claim 1 or 2, it is characterised in that：Institute
The power supply (4) stated uses discharge power supply, and discharge power supply connects rechargeable battery by DC/DC boost modules, and rechargeable battery connection is filled
Power supply module, positive pole connection the starting switch SA, starting switch SA of discharge power supply are switched by adjustable resistor R connecting tests
Button (9).
A kind of 5. Portable metering scene as described in above-mentioned any claim measurement side of mutual inductor polarity measurement apparatus
Method, it is characterised in that：Comprise the following steps：
(1) test switch K1 is closed, ammeter is tested or whether voltmeter is normal, if being normally carried out lower step work；
(2) primary side of transformer is connected into the positive binding post P1 of transformer primary side respectively and transformer primary side bears terminals
Sub- P2, the secondary side of transformer connects the positive binding post S1 of transformer secondary side respectively and transformer secondary side bears binding post
S2；
(3) it is on switching SA, by pressing test switch K2, transformer is put by dry cell or discharge power supply
Electricity, primary current produce secondary current by transformer, after secondary current flows through voltmeter or ammeter, pass through voltmeter or electricity
The polarity of the beat of pointer direction determining transformer of flow table, so as to judge whether secondary connection is correct.
6. the Portable metering scene according to claim 5 measuring method of mutual inductor polarity measurement apparatus, its feature
It is：When being discharged by discharge power supply transformer, size of current is adjusted by adjustable resistor R.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710684406.XA CN107677915A (en) | 2017-08-11 | 2017-08-11 | Use mutual inductor polarity measurement apparatus and its measuring method in Portable metering scene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710684406.XA CN107677915A (en) | 2017-08-11 | 2017-08-11 | Use mutual inductor polarity measurement apparatus and its measuring method in Portable metering scene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107677915A true CN107677915A (en) | 2018-02-09 |
Family
ID=61135778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710684406.XA Pending CN107677915A (en) | 2017-08-11 | 2017-08-11 | Use mutual inductor polarity measurement apparatus and its measuring method in Portable metering scene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107677915A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109683056A (en) * | 2019-03-06 | 2019-04-26 | 国网山东省电力公司沂源县供电公司 | A kind of portable multi-function polarity measurement device and its application method |
| CN110286295A (en) * | 2019-05-13 | 2019-09-27 | 国家电网有限公司 | A kind of direct current feed control panel branch CT polarity test device and method |
| CN111505353A (en) * | 2020-06-18 | 2020-08-07 | 中国人民解放军91286部队航空仪器计量站 | Electrical detection instrument and method |
| CN111536864A (en) * | 2020-05-07 | 2020-08-14 | 郑州上电电机科技发展有限公司 | Central polarity correction circuit and portable correction instrument |
| CN112698239A (en) * | 2020-11-10 | 2021-04-23 | 国网山东省电力公司淄博供电公司 | Portable mutual inductor polarity tester |
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| CN201804072U (en) * | 2010-10-12 | 2011-04-20 | 山东电力集团公司菏泽供电公司 | Polarity test instrument for current transformer |
| CN202649451U (en) * | 2012-05-24 | 2013-01-02 | 河北省送变电公司 | Portable current transformer polarity calibration instrument |
| CN203535163U (en) * | 2013-07-29 | 2014-04-09 | 广东电网公司东莞供电局 | Current transformer polarity tester |
| CN104166071A (en) * | 2014-08-07 | 2014-11-26 | 国家电网公司 | Portable electric transformer polarity determining device |
| CN204832411U (en) * | 2015-07-31 | 2015-12-02 | 国网山东省电力公司淄博供电公司 | Portable mutual inductor polarity tester |
| CN204882788U (en) * | 2015-07-31 | 2015-12-16 | 国网山东省电力公司淄博供电公司 | Portable current transformer polarity test appearance |
| CN105842579A (en) * | 2016-05-31 | 2016-08-10 | 国网青海省电力公司西宁供电公司 | Portable current transformer polarity tester |
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- 2017-08-11 CN CN201710684406.XA patent/CN107677915A/en active Pending
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| CN201804072U (en) * | 2010-10-12 | 2011-04-20 | 山东电力集团公司菏泽供电公司 | Polarity test instrument for current transformer |
| CN202649451U (en) * | 2012-05-24 | 2013-01-02 | 河北省送变电公司 | Portable current transformer polarity calibration instrument |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109683056A (en) * | 2019-03-06 | 2019-04-26 | 国网山东省电力公司沂源县供电公司 | A kind of portable multi-function polarity measurement device and its application method |
| CN110286295A (en) * | 2019-05-13 | 2019-09-27 | 国家电网有限公司 | A kind of direct current feed control panel branch CT polarity test device and method |
| CN110286295B (en) * | 2019-05-13 | 2021-07-06 | 国家电网有限公司 | Direct current feed screen branch CT polarity testing device and method |
| CN111536864A (en) * | 2020-05-07 | 2020-08-14 | 郑州上电电机科技发展有限公司 | Central polarity correction circuit and portable correction instrument |
| CN111536864B (en) * | 2020-05-07 | 2021-08-24 | 郑州上电电机科技发展有限公司 | Central polarity correction circuit and portable correction instrument |
| CN111505353A (en) * | 2020-06-18 | 2020-08-07 | 中国人民解放军91286部队航空仪器计量站 | Electrical detection instrument and method |
| CN112698239A (en) * | 2020-11-10 | 2021-04-23 | 国网山东省电力公司淄博供电公司 | Portable mutual inductor polarity tester |
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Application publication date: 20180209 |
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