CN105929352A - Combined-type current transformer testing device - Google Patents
Combined-type current transformer testing device Download PDFInfo
- Publication number
- CN105929352A CN105929352A CN201610315961.0A CN201610315961A CN105929352A CN 105929352 A CN105929352 A CN 105929352A CN 201610315961 A CN201610315961 A CN 201610315961A CN 105929352 A CN105929352 A CN 105929352A
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- CN
- China
- Prior art keywords
- ammeter
- current transformer
- booster
- electrical connected
- jacks
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- 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.)
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a combined-type current transformer testing device, and the device comprises a housing, a current meter, a power supply, three switch keys, two current meter pen jacks, three power positive jacks, and a power negative jack. One end of each switch key is electrically connected with a power output positive electrode, and the other ends of the three switch keys are respectively in electrical connection with three power positive jacks. The three power positive jacks are respectively provided with one positive testing line in an inserted manner. The power negative jack is electrically connected with a power output negative electrode. A negative testing line is inserted in the power negative jack. The current meter pen jacks are respectively in electrical connection with the current meter, and are respectively provided with one current meter pen in an inserted manner. The device combines the through-flow and polarity testing devices of a current transformer into one, and has functions of detecting the correctness of a secondary loop of the current transformer and judging the polarity of the current transformer.
Description
Technical field
The present invention relates to current transformer experimental technique field, be specially a kind of Combined type current transformer assay device.
Background technology
Currently used polarity test device is made up of aneroid battery, wire and ammeter.Some joint aneroid battery are together in series, positive and negative electrode draws two wires respectively, the A end of current transformer is fixed in one end of wire, the other end of wire is alternately contacted with the B end of current transformer, separates by testing crew first, thus the electric current of the secondary side generation transition at current transformer, ammeter is serially connected in the secondary side of current transformer by testing crew second, by observing the yawing moment of ammeter pointer, it is judged that the polarity of current transformer.
Owing to needing two testing crews respectively in first and second side of current transformer when polarity test, if it is distant, need to pass on TD by transmitter receiver or mobile phone, aneroid battery can not be connected for a long time by testing crew first with current transformer primary side, otherwise can cause a large amount of losses that cannot distinguish ammeter yawing moment and electricity.Testing threephase current transformer, need test connection to be repeated, takes out stitches, work efficiency is relatively low.
Summary of the invention
Present invention aims to above-mentioned the deficiencies in the prior art, it is provided that a kind of Combined type current transformer assay device.
nullThe technical scheme is that and be achieved in that: a kind of Combined type current transformer assay device，Including shell、Ammeter、Power supply、Booster、Current lifting device and string heart CT，It is provided with supply hub on described shell、Primary current binding post、Ground connection binding post、Three switch keys、Two ammeter test pencil jacks、Three positive source jacks and power cathode jack，Described supply hub、Booster、Current lifting device and string heart CT are electrical connected successively，Described string heart CT outfan is electrical connected with primary current binding post，Described ground connection binding post is electrical connected with supply hub ground wire，Booster regulation handle it is provided with on described booster，Described booster regulation handle is in order to regulate booster output voltage，Said two ammeter test pencil jack is all electrical connected with ammeter，An ammeter test pencil all it is inserted with on said two ammeter test pencil jack，One end of described three switch keys is all electrical connected with power supply output cathode，Described three switch key other ends are electrical connected with three positive source jacks respectively，A positive pole test wire all it is inserted with on described three positive source jacks，A testing wire clamp electrically it is connected with on described positive pole test wire，Described power cathode jack is electrical connected with power supply output negative pole，A negative pole test wire it is inserted with on described power cathode jack，Three test clamps electrically it are connected with on described negative pole test wire.
Preferably, described power supply uses constant-current source power supply, and its output electric current can regulate.
Preferably, described switch key uses self-recoverage switch.
Preferably, the back side of described shell is additionally provided with handle and two storage tanks, and said two storage tank is in order to deposit ammeter test pencil, positive pole test wire and negative pole test wire.
Compared with prior art, the invention has the beneficial effects as follows: the through-flow of current transformer and polarity test device are united two into one by the present invention there is the correctness of detection secondary loop of mutual inductor simultaneously and judge the function of current transformer polarity.
Accompanying drawing explanation
The present invention is described in further detail for embodiment in below in conjunction with the accompanying drawings, but is not intended that any limitation of the invention.
Fig. 1 is present configuration schematic diagram；
Fig. 2 is structure schematic diagram of the present invention；
Fig. 3 is booster, current lifting device and the fundamental diagram of string heart CT.
In figure: 1, shell, 1-1, handle, 1-2, storage tank, 2, ammeter, 3, power supply, 4, booster, 4-1, booster regulation handle, 5, current lifting device, 6, string heart CT, 7, supply hub, 8, primary current binding post, 9, ground connection binding post, 10, switch key, 11, ammeter test pencil jack, 12, positive source jack, 13, power cathode jack, 14, ammeter test pencil, 15, positive pole test wire, 16, testing wire clamp, 17, negative pole test wire.
Detailed description of the invention
nullRefer to Fig. 1-3，The present invention provides a kind of technical scheme: a kind of Combined type current transformer assay device，Including shell 1、Ammeter 2、Power supply 3、Booster 4、Current lifting device 5 and string heart CT6，It is provided with supply hub 7 on described shell 1、Primary current binding post 8、Ground connection binding post 9、Three switch keys 10、Two ammeter test pencil jacks 11、Three positive source jacks 12 and power cathode jack 13，Described supply hub 7、Booster 4、Current lifting device 5 and string heart CT6 are electrical connected successively，Described string heart CT6 outfan is electrical connected with primary current binding post 8，Described ground connection binding post 9 is electrical connected with supply hub 7 ground wire，Booster regulation handle 4-1 it is provided with on described booster 4，Described booster regulation handle 4-1 is in order to regulate booster 4 output voltage，Said two ammeter test pencil jack 11 is all electrical connected with ammeter 2，An ammeter test pencil 14 all it is inserted with on said two ammeter test pencil jack 11，One end of described three switch keys 10 is all electrical connected with power supply 3 output cathode，Described three switch key 10 other ends are electrical connected with three positive source jacks 12 respectively，A positive pole test wire 15 all it is inserted with on described three positive source jacks 12，A testing wire clamp 16 electrically it is connected with on described positive pole test wire 15，Described power cathode jack 13 is electrical connected with power supply 3 output negative pole，A negative pole test wire 17 it is inserted with on described power cathode jack 13，Three test clamps 16 electrically it are connected with on described negative pole test wire 13.
Described power supply 3 uses constant-current source power supply, and its output electric current can regulate.Described switch key 10 uses self-recoverage to switch.The back side of described shell 1 is additionally provided with handle 1-1 and two storage tank 1-2, and said two storage tank 1-2 is in order to deposit ammeter test pencil 14, positive pole test wire 15 and negative pole test wire 17.
Need to further illustrate: booster 4, current lifting device 5 and string heart CT are used for carrying out through-flow test, and Fig. 3 is its fundamental diagram.
Operation instruction: during use, three positive pole test wires 15 are clipped in one end of three current transformer primary sides of three-phase electricity respectively, three clips 16 of negative pole test wire 17 are clipped in the other end of three current transformer primary sides respectively, ammeter test pencil 14 is electrical connected with the secondary side of current transformer, during Push switch button 10, exportable current impulse, different current transformers is flow through by pressing the current impulse of three switch key 10 controllable power 3 outputs, at this moment whether can be swung by observation ammeter 2 and judge the through-flow of current transformer and polarity with swaying direction.
Embodiment provided above is the better embodiment of the present invention, only it is used for the convenient explanation present invention, not the present invention is made any pro forma restriction, any art has usually intellectual, if in the range of without departing from the carried technical characteristic of the present invention, utilize disclosed technology contents to be made the Equivalent embodiments that local is changed or modified, and without departing from the technical characteristic content of the present invention, all still fall within the range of the technology of the present invention feature.
Claims (4)
- null1. a Combined type current transformer assay device，Including shell、Ammeter、Power supply、Booster、Current lifting device and string heart CT，It is characterized in that，It is provided with supply hub on described shell、Primary current binding post、Ground connection binding post、Three switch keys、Two ammeter test pencil jacks、Three positive source jacks and power cathode jack，Described supply hub、Booster、Current lifting device and string heart CT are electrical connected successively，Described string heart CT outfan is electrical connected with primary current binding post，Described ground connection binding post is electrical connected with supply hub ground wire，Booster regulation handle it is provided with on described booster，Described booster regulation handle is in order to regulate booster output voltage，Said two ammeter test pencil jack is all electrical connected with ammeter，An ammeter test pencil all it is inserted with on said two ammeter test pencil jack，One end of described three switch keys is all electrical connected with power supply output cathode，Described three switch key other ends are electrical connected with three positive source jacks respectively，A positive pole test wire all it is inserted with on described three positive source jacks，A testing wire clamp electrically it is connected with on described positive pole test wire，Described power cathode jack is electrical connected with power supply output negative pole，A negative pole test wire it is inserted with on described power cathode jack，Three test clamps electrically it are connected with on described negative pole test wire.
- A kind of Combined type current transformer assay device the most according to claim 1, it is characterised in that described power supply uses constant-current source power supply, and its output electric current can regulate.
- A kind of Combined type current transformer assay device the most according to claim 1, it is characterised in that described switch key uses self-recoverage switch.
- A kind of Combined type current transformer assay device the most according to claim 1, it is characterised in that the back side of described shell is additionally provided with handle and two storage tanks, and said two storage tank is in order to deposit ammeter test pencil, positive pole test wire and negative pole test wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610315961.0A CN105929352A (en) | 2016-05-13 | 2016-05-13 | Combined-type current transformer testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610315961.0A CN105929352A (en) | 2016-05-13 | 2016-05-13 | Combined-type current transformer testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105929352A true CN105929352A (en) | 2016-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610315961.0A Pending CN105929352A (en) | 2016-05-13 | 2016-05-13 | Combined-type current transformer testing device |
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| Country | Link |
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| CN (1) | CN105929352A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807343A (en) * | 2017-12-08 | 2018-03-16 | 国家电网公司 | Small-sized DC voltage generation circuit for the verification of electronic mutual inductor polarity |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201804071U (en) * | 2010-08-20 | 2011-04-20 | 嵩县电业局 | Polarity tester for current transformer |
| 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 |
| CN202119860U (en) * | 2011-06-28 | 2012-01-18 | 石家庄供电公司 | Current transformer polarity testing box |
| CN102426321A (en) * | 2008-12-31 | 2012-04-25 | 新疆维吾尔自治区送变电工程公司 | Test method for simulating electrification of current transformer primary device during power transmission debugging |
| WO2013063856A1 (en) * | 2011-11-03 | 2013-05-10 | 四川电力科学研究院 | Method for testing error influence amount on high voltage three-phase current transformer by high voltage leakage current |
-
2016
- 2016-05-13 CN CN201610315961.0A patent/CN105929352A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426321A (en) * | 2008-12-31 | 2012-04-25 | 新疆维吾尔自治区送变电工程公司 | Test method for simulating electrification of current transformer primary device during power transmission debugging |
| CN201804071U (en) * | 2010-08-20 | 2011-04-20 | 嵩县电业局 | Polarity tester for current transformer |
| 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 |
| CN202119860U (en) * | 2011-06-28 | 2012-01-18 | 石家庄供电公司 | Current transformer polarity testing box |
| WO2013063856A1 (en) * | 2011-11-03 | 2013-05-10 | 四川电力科学研究院 | Method for testing error influence amount on high voltage three-phase current transformer by high voltage leakage current |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807343A (en) * | 2017-12-08 | 2018-03-16 | 国家电网公司 | Small-sized DC voltage generation circuit for the verification of electronic mutual inductor polarity |
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Application publication date: 20160907 |