CN203606421U - Improved current transformer - Google Patents
Improved current transformer Download PDFInfo
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- CN203606421U CN203606421U CN201320775691.3U CN201320775691U CN203606421U CN 203606421 U CN203606421 U CN 203606421U CN 201320775691 U CN201320775691 U CN 201320775691U CN 203606421 U CN203606421 U CN 203606421U
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- current transformer
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- integral terminal
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Abstract
The utility model provides an improved current transformer comprising a casing (1), a current transformer (2), a current protection plate (3), and a pluggable integral terminal (4). The current transformer (2), the current protection plate (3), and the pluggable integral terminal (4) are disposed in the casing (1). The current protection plate (3) is connected with the current transformer (2), and the current transformer (2) is connected with the pluggable integral terminal (4). The improved current transformer is advantageous in that the measurement of the current signals can be facilitated, the on-site wiring is not required, and the operation of the on-site electrical devices cannot be affected; the structure is novel and compact, the reliability is high, the maintenance is simple, and the economical efficiency and the practicability are integrated into one body.
Description
Technical field:
The utility model relates to a kind of improved current transformer, belongs to the individual event current monitoring field of AC Electric Power electric current, ac current signal can be changed into voltage signal and offer the collection of current acquisition unit.
Background technology:
Monitoring to AC Electric Power curent change, is the routine monitoring content of electric system at present, can understand the situation of load and the situation of power equipment itself by the variation of electric current.
Current transformer is the device for monitoring ac current signal, and conventionally, the cabinet of current transformer often hangs over below measured equipment, is used for the conversion of settling signal.
There is following problem in existing current transformer: (1) electric current wiring complexity, as realize multinomial current detecting need to be by cable duct length apart from bracing wire, easily shine into end shield accident; (2) not support equipment warm swap of current transformer output line, thereby the needs that impact detects charged electric power apparatus by Portable sampling module.
Therefore the current transformer that the applicable charged electric power apparatus of research detects is very necessary.
A kind of improved current transformer is at the capacitance type equipment of our development, in arrester wireless para tape electro-detection project, be applied, in this project, adopt two improved current transformers to be arranged on below a capacitance type equipment on circuit nearby, one of them improved current transformer is arranged on this capacitance type equipment of planar survey leakage current under a capacitance type equipment, another improved current transformer is arranged on this capacitance type equipment of planar survey leakage current under another capacitance type equipment, by two with the supporting Portable acquiring module of improved current transformer, gather the leakage current of two capacitance type equipments, and upload, the relative dielectric loss of main station system computing equipment, can understand the insulation situation of capacitive apparatus, in this project, the improved current transformer connection of one described in the utility model is simple, easy to use, do not affect the operation of primary equipment, obtain good effect.
Utility model content:
The utility model provides a kind of improved current transformer, and its object is: this improved current transformer can be arranged on below measured equipment nearby, simple with the wiring of primary side main line; Provide convenience for Portable sampling module detects charged electric power apparatus, the signaling interface of safety, be applicable to the ac signal acquisition of monitoring equipment to equipment under test.
The technical scheme that the utility model provides is: a kind of improved current transformer, is characterized in that:
Described current transformer comprises cabinet (1), current transformer (2), current protection plate (3) and can board plug type integral terminal (4); Current transformer (2), current protection plate (3) and can be installed in cabinet (1) inside by board plug type integral terminal (4); Current protection plate (3) is connected with current transformer (2); Current transformer (2) with can be connected by board plug type integral terminal (4).
Preferably, the described joint that can board plug type integral terminal (4) adopts female mouth structure.
What preferably, the signals collecting end of Portable sampling module adopted public mouth structure joint can board plug type integral terminal.
Preferably, described Portable acquiring module can board plug type integral terminal and described wall-hanging outdoor crate (1) in fixing can board plug type integral terminal (4) be a set of terminal, the two joint by male and female connect-disconnect structure connects or disconnects.
Preferably, described cabinet (1) is wall-hanging outdoor crate, and the structure of cabinet (1) is rectangular parallelepiped; Its leading flank be one can around cabinet (1) side Unscrew door, the trailing flank of cabinet (1) is provided with two hooks.
Preferably, in described current protection plate (3), comprise overcurrent and over-voltage protection element.
With immediate technical scheme ratio, the beneficial effects of the utility model are:
The utility model is applied in the capacitance type equipment, arrester wireless para tape electro-detection project of our development, and the operation that its wiring is simple, easy to use, do not affect primary equipment, obtains good effect.
Can realize primary current signal and be converted to secondary voltage signal, for the supporting Portable sampling module of cabinet therewith, can conveniently realize the measurement of current signal, without field wiring, Portable acquiring module can be carried out the collection of primary side alternating current in charged electric power apparatus situation.
Collection terminal and primary side alternating current are isolated completely, are independent of each other, have novel structure compactness, reliability high, safeguard the features such as simple, therefore belong to a kind of new device that integrates economy and practicality, be applicable to the needs of charged electric power apparatus monitoring, can be widely used in the occasion of the portable live monitoring of power equipment.
Accompanying drawing explanation:
Fig. 1 is a kind of improved current transformer structure block diagram.
Wherein: 1-cabinet; 2-current transformer; 3-current protection plate; 4-plug type integral terminal.
Embodiment:
In order to understand better the utility model, further illustrate content of the present utility model below in conjunction with specific embodiment.
Specific embodiment of the utility model as shown in Figure 1; current transformer (2), current protection plate (3) (3), plug type integral terminal (4) are arranged in cabinet (1), and ac current signal first enters current transformer (2) by current protection plate (3).
Current protection plate (3) comprises overcurrent and over-voltage protection element, and when overvoltage and overcurrent condition appear in alternating current, current protection plate (3) can current limliting and pressure limiting, makes subsequent conditioning circuit be no more than protection limit value; Because the alternating current in power department requirement work can not open circuit; current protection plate provides by-pass switch on (3); in the time that follow-up equipment need to overhaul; by-pass switch is closed; can carry out the maintenance of follow-up equipment; when normal operation in normal, by-pass switch is opened, and ac current signal passes from the iron core of current transformer (2) after by current protection plate (3).
Current transformer (2) output signal is externally exported by plug type integral terminal (4), and plug type integral terminal (4) adopts the joint of female mouth structure; The cabinet installing (1) is pre-installed in to the scene that needs work, need to measures the ac current signal access of Yi road, whole pre-process of assembling completes.
In the time that user need to measure the electric current of this circuit, open cabinet (1), the Portable acquiring module of the plug type integral terminal that adopts male mouth structure joint is connected with adopting the plug type integral terminal (4) of female mouth structure joint in cabinet (1), after Portable acquiring module powers on by communication and main website communication, upload current data, after the work of Portable acquiring module completes, power-off is also pulled up plug type integral terminal, Portable acquiring module is taken out in cabinet (1), thereby completes whole surveying work.
These are only embodiment of the present utility model, be not limited to the utility model, all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in the claim scope of the present utility model that application awaits the reply.
Claims (6)
1. an improved current transformer, is characterized in that:
Described current transformer comprises cabinet (1), current transformer (2), current protection plate (3) and can board plug type integral terminal (4); Current transformer (2), current protection plate (3) and can be installed in cabinet (1) inside by board plug type integral terminal (4); Current protection plate (3) is connected with current transformer (2); Current transformer (2) with can be connected by board plug type integral terminal (4).
2. the improved current transformer of one as claimed in claim 1, is characterized in that:
The described joint that can board plug type integral terminal (4) adopts female mouth structure.
3. the improved current transformer of one as claimed in claim 1, is characterized in that:
What the signals collecting end of Portable sampling module adopted public mouth structure joint can board plug type integral terminal.
4. a kind of improved current transformer as claimed in claim 2 or claim 3, is characterized in that:
Described Portable acquiring module can board plug type integral terminal and described wall-hanging outdoor crate (1) in fixing can board plug type integral terminal (4) be a set of terminal, the two joint by male and female connect-disconnect structure connects or disconnects.
5. the improved current transformer of one as claimed in claim 1, is characterized in that:
Described cabinet (1) is wall-hanging outdoor crate, and the structure of cabinet (1) is rectangular parallelepiped; Its leading flank be one can around cabinet (1) side Unscrew door, the trailing flank of cabinet (1) is provided with two hooks.
6. the improved current transformer of one as claimed in claim 1, is characterized in that:
In described current protection plate (3), comprise overcurrent and over-voltage protection element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320775691.3U CN203606421U (en) | 2013-11-29 | 2013-11-29 | Improved current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320775691.3U CN203606421U (en) | 2013-11-29 | 2013-11-29 | Improved current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203606421U true CN203606421U (en) | 2014-05-21 |
Family
ID=50719086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320775691.3U Active CN203606421U (en) | 2013-11-29 | 2013-11-29 | Improved current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203606421U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502881A (en) * | 2014-12-18 | 2015-04-08 | 贵州电力试验研究院 | Device for eliminating and monitoring PT (Potential Transformer) secondary circuit voltage drop |
| CN105203881A (en) * | 2015-09-18 | 2015-12-30 | 国家电网公司 | Terminal box for high-voltage equipment insulation and electrification testing and testing method |
-
2013
- 2013-11-29 CN CN201320775691.3U patent/CN203606421U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502881A (en) * | 2014-12-18 | 2015-04-08 | 贵州电力试验研究院 | Device for eliminating and monitoring PT (Potential Transformer) secondary circuit voltage drop |
| CN105203881A (en) * | 2015-09-18 | 2015-12-30 | 国家电网公司 | Terminal box for high-voltage equipment insulation and electrification testing and testing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |