CN205176193U - Portable current transformer polarity test device - Google Patents
Portable current transformer polarity test device Download PDFInfo
- Publication number
- CN205176193U CN205176193U CN201521020015.0U CN201521020015U CN205176193U CN 205176193 U CN205176193 U CN 205176193U CN 201521020015 U CN201521020015 U CN 201521020015U CN 205176193 U CN205176193 U CN 205176193U
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- current transformer
- conductor
- expansion link
- wire
- test device
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- 238000012360 testing method Methods 0.000 title claims abstract description 17
- 239000004020 conductor Substances 0.000 claims abstract description 30
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
Abstract
The utility model discloses a portable current transformer polarity test device, the check out test set of having solved traditional current transformer is simple and crude, carries inconveniently and is unfavorable for the problem of height current transformer's such as CT detection on the post. The utility model discloses a power, first wire (2) be connected with positive, second wire (3) be connected with the power negative pole, its characterized in that: include still that the tip all is provided with first telescopic link (5) and second telescopic link (6) of conductor (4), conductor (4) and the first wire (2) of first telescopic link (5) are connected, and conductor (4) and the second wire (3) of second telescopic link (6) are connected. The utility model discloses convenient to carry, the polarity of height equipment such as CT and transformer bushing CT is measured on the post of being convenient for, and equipment is simple reliable.
Description
Technical field
The utility model relates to a kind of proving installation, and what be specifically related to is a kind of portable type current transformer polarity test device.
Background technology
In connection relay protection (as differential, power direction relay), meritorious and reactive volt-ampere meter, electric energy meter timing, the polarity of current transformer must be noted.Only have the polarity of current transformer to connect correct, just can guarantee instrument and protective device energy correct operation.If the polarity wrong of current transformer, then can cause anti-finger that is meritorious, reactive volt-ampere meter, that is, cause reversion that is meritorious and reactive energy-meter.Especially in differential protection, due to the secondary loop of mutual inductor reverse polarity connection of side, and cause bring load after protection misoperation accident be recurrent.
And the conventional method of building of existing direct supply is connected in series formation by electric battery temporarily, carry inconvenience, and be unfavorable for the detection of CT isometry position current transformer on post.
Utility model content
Principle of the present utility model is: access instantaneous direct current respectively at a kind of primary side two ends of portable type current transformer polarity test device, direct supply is provided by electric battery, can by instantaneous direct current access current transformer by shift knob, power up moment, measure, by its yawing moment determination current transformer polarity with pointer multimeter millivolt shelves in Current Transformer Secondary side.
The purpose of this utility model is that the checkout equipment overcoming traditional current transformer is simple and crude, carries inconvenience and is unfavorable for the problem of the detection of CT isometry position current transformer on post; A kind of portable type current transformer polarity test device solved the problem is provided.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of portable type current transformer polarity test device, comprises indicator type current meter, power supply, the first wire be connected with positive source, the second wire be connected with power cathode; Also comprise the first expansion link and the second expansion link that end is provided with conductor, the conductor of the first expansion link is connected with the first wire, and the conductor of the second expansion link is connected with the second wire.
The utility model is telescopic, easy to carry by being set to by control lever, and the setting of telescopic control lever, is effectively convenient to the polarity measurement of CT and transformer bushing CT isometry position equipment on post, more convenient to operate during detection.
Telescopic control lever in the utility model and cell voltage grade, battery capacity can customize according to the demand of user, apply more extensive.
Further, described power supply is arranged on handle inside, and this handle is fixed on the one end away from conductor on the first expansion link or the second expansion link.The utility model adopts the mode of integrated battery group in handle to build power supply, makes to carry convenient.
Conveniently operating, described handle being provided with the gauge tap for controlling power supply folding.
In order to test current transformer polarity better, conically, this first expansion link and the conductor on the second expansion link are all be fixedly connected with it by conical large end to described conductor.By the setting of this structure, effectively can ensure that the small end of conical conductor can the primary side termination of more effective current transformer connect, reach the effect of stable conducting direct current electricity.
Conveniently wire and conductor are connected and fixed better, and described conductor is provided with jack.
The utility model compared with prior art, has the following advantages and beneficial effect:
1, the utility model is telescopic, easy to carry by being set to by control lever, and the setting of telescopic control lever, is effectively convenient to the polarity measurement of CT and transformer bushing CT isometry position equipment on post, more convenient to operate during detection;
2, the utility model adopts the mode of integrated battery group in handle to build power supply, makes to carry convenient;
3, the gauge tap of the utility model by being provided with on handle for controlling power supply folding, its detection is more convenient to operate;
4, structure of the present utility model is simple, easy and simple to handle, Be very effective, is applicable to very much applying.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model when detecting current transformer.
Wherein, the parts name that in figure, Reference numeral is corresponding is called:
1-indicator type current meter, 2-first wire, 3-second wire, 4-conductor, 5-first expansion link, 6-second expansion link, 7-handle, 8-gauge tap.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1
A kind of portable type current transformer polarity test device, as shown in Figure 1, comprise indicator type current meter 1, power supply, the first wire 2 be connected with positive source, the second wire 3 be connected with power cathode, also comprises the first expansion link 5 and the second expansion link 6 that end is provided with conductor 4, the conductor 4 of the first expansion link 5 is connected with the first wire 2, and the conductor 4 of the second expansion link 6 is connected with the second wire 3.
Concrete testing process is as follows:
As shown in Figure 1, the conductor 4 of the first expansion link 5 and the conductor 4 of the second expansion link 6 are separately fixed at the primary side two ends of current transformer, instantaneous direct current is accessed respectively by power supply, direct current is made to access in current transformer, power up moment, measure with the millivolt shelves of indicator type current meter 1 in Current Transformer Secondary side, by its yawing moment determination current transformer polarity.
Embodiment 2
The present embodiment adds handle 7 on the basis of embodiment 1, and optimize the structure of handle 7, specifically arranges as follows:
It is inner that described power supply is arranged on handle 7, and this handle 7 is fixed on the one end away from conductor 4 on the first expansion link 5 or the second expansion link 6.Described handle 7 is provided with the gauge tap 8 for controlling power supply folding.
Above-mentioned setting makes test operation easier.
Embodiment 3
The difference of the present embodiment and embodiment 1 or 2 is, the present embodiment optimizes the structure of conductor 4, specifically arranges as follows:
Conically, this first expansion link 5 and the conductor 4 on the second expansion link 6 are all be fixedly connected with it by conical large end to described conductor 4.Described conductor 4 is provided with jack.
Above-described embodiment is only preferred embodiment of the present utility model; restriction not to the utility model protection domain; in every case design concept of the present utility model being adopted, and the change carried out non-creativeness work on this basis and make, all should belong within protection domain of the present utility model.
Claims (5)
1. a portable type current transformer polarity test device, comprises indicator type current meter (1), power supply, the first wire (2) be connected with positive source, the second wire (3) be connected with power cathode; It is characterized in that: also comprise the first expansion link (5) and the second expansion link (6) that end is provided with conductor (4), the conductor (4) of the first expansion link (5) is connected with the first wire (2), and the conductor (4) of the second expansion link (6) is connected with the second wire (3).
2. a kind of portable type current transformer polarity test device according to claim 1, it is characterized in that, it is inner that described power supply is arranged on handle (7), and this handle (7) is fixed on the one end away from conductor (4) on the first expansion link (5) or the second expansion link (6).
3. a kind of portable type current transformer polarity test device according to claim 2, is characterized in that, described handle (7) is provided with the gauge tap (8) for controlling power supply folding.
4. a kind of portable type current transformer polarity test device according to claim 1, it is characterized in that, conically, this first expansion link (5) and the conductor (4) on the second expansion link (6) are all be fixedly connected with it by conical large end to described conductor (4).
5. a kind of portable type current transformer polarity test device according to claim 4, is characterized in that, (4) are provided with jack to described conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521020015.0U CN205176193U (en) | 2015-12-10 | 2015-12-10 | Portable current transformer polarity test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521020015.0U CN205176193U (en) | 2015-12-10 | 2015-12-10 | Portable current transformer polarity test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205176193U true CN205176193U (en) | 2016-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521020015.0U Active CN205176193U (en) | 2015-12-10 | 2015-12-10 | Portable current transformer polarity test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205176193U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111123171A (en) * | 2019-12-20 | 2020-05-08 | 贵州电网有限责任公司 | Telescopic mutual inductance current polarity testing device |
-
2015
- 2015-12-10 CN CN201521020015.0U patent/CN205176193U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111123171A (en) * | 2019-12-20 | 2020-05-08 | 贵州电网有限责任公司 | Telescopic mutual inductance current polarity testing device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |