CN207381682U - Relay protection Special short line - Google Patents
Relay protection Special short line Download PDFInfo
- Publication number
- CN207381682U CN207381682U CN201721502457.8U CN201721502457U CN207381682U CN 207381682 U CN207381682 U CN 207381682U CN 201721502457 U CN201721502457 U CN 201721502457U CN 207381682 U CN207381682 U CN 207381682U
- Authority
- CN
- China
- Prior art keywords
- relay protection
- afterbody
- special short
- plug
- conducting wire
- 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.)
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Abstract
The utility model is related to a kind of relay protection Special short lines; it is respectively the conducting wire of head and afterbody including four both ends; the head of four conducting wires is mutual indepedent and is connected to the head plug that can connect current terminal; the afterbody of four conducting wires is connected together and is connected with the afterbody plug that can connect current terminal, and miniature ammeter is in series in each wire.The utility model can easily and safely be applied in reaying protection test and maintenance, and reliability is high, and can directly carry out current measurement, time saving and energy saving.
Description
Technical field
The utility model belongs to field of power, and in particular to a kind of to carry out reaying protection test and inspection to power equipment
The shorting stub used when repairing.
Background technology
Relay protection of power system will often carry out secondary device and secondary circuit inspection under primary equipment live state
Work is repaiied, often short circuit observing and controlling screen, protection screen current transformer outer terminal is wanted at this time, then opens connection sheet, observing and controlling is filled
It puts, protective device is unlocked from current loop, progress measure and control device, the test of protective device, maintenance, replacement.Often make in the past
Shorting stub is temporarily functioned as with the test lead of reaying protection test instrument, various test lead length, thickness, color are inconsistent,
Not only poor reliability but also using trouble.After short circuit current, also need to solve after having electric current with clamp on amperemeter measurement shorting stub
Current transformer connection terminal is opened, it is not only dangerous but also time-consuming and laborious.
The content of the invention
The purpose of this utility model is to provide a kind of safe and convenient to use, and the relay protection that can measure electric current is special short
Wiring.
In order to achieve the above objectives, the technical solution adopted in the utility model is：
A kind of relay protection Special short line is respectively the conducting wire of head and afterbody including four both ends, is led described in four
The head of line is mutual indepedent and is connected to the head plug that can connect current terminal, and the afterbody of four conducting wires is connected
It is connected together and is connected with the afterbody plug that can connect current terminal, miniature ammeter is in series on the every conducting wire.
Preferably, the conducting wire is multiply soft copper conducting wire.
Preferably, the wire cross-section area is 4mm2。
Preferably, by inserting between the head plug and the conducting wire, between the afterbody plug and the conducting wire
The formula connector of pulling out is connected.
Preferably, the miniature ammeter is the ammeter that range is 10mA to 10A.
Preferably, the miniature ammeter is connected by wire connection terminal with the conducting wire.
Since above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：The utility model
Can easily and safely it be applied in reaying protection test and maintenance, reliability is high, and can directly carry out current measurement, saves
Shi Shengli.
Description of the drawings
Attached drawing 1 is the schematic diagram of the relay protection Special short line of the utility model.
In the figures above：1st, conducting wire；2nd, miniature ammeter；3rd, head plug；4th, afterbody plug.
Specific embodiment
Shown embodiment is further described the utility model below in conjunction with the accompanying drawings.
Embodiment one：As shown in Figure 1, a kind of relay protection Special short line, including four both ends be respectively head and
The conducting wire of afterbody, this four conducting wires are using multiply soft copper conducting wire, sectional area 4mm2.The head of four conducting wires is mutual indepedent
And the head plug that can be reliably connected current terminal is connected to, the afterbody of four conducting wires is connected together and is connected with
The afterbody plug of current terminal can be connected, can pass through plug between head plug and conducting wire, between afterbody plug and conducting wire
Formula connector is connected.Range is in series in each wire as the miniature ammeters of 10mA to 10A, miniature ammeter passes through terminals
Son is connected with conducting wire.When with relay protection Special short line one group of current transformer outer terminal of short circuit, three-phase current
It can show at once and N phases then show out-of-balance current, not need have electric current with clamp on amperemeter measurement shorting stub.
Above-described embodiment is only the technical concepts and features for illustrating the utility model, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement according to this, can not the scope of protection of the utility model be limited with this.
All equivalent change or modifications made according to the utility model Spirit Essence, should all cover the scope of protection of the utility model it
It is interior.
Claims (6)
1. a kind of relay protection Special short line, it is characterised in that：It includes the conducting wire that four both ends are respectively head and afterbody,
The head of four conducting wires is mutual indepedent and is connected to the head plug that can connect current terminal, four conducting wires
Afterbody be connected together and be connected with the afterbody plug that can connect current terminal, be in series on the every conducting wire miniature
Ammeter.
2. relay protection Special short line according to claim 1, it is characterised in that：The conducting wire is led for multiply soft copper
Line.
3. relay protection Special short line according to claim 1, it is characterised in that：The wire cross-section area is 4mm2。
4. relay protection Special short line according to claim 1, it is characterised in that：The head plug and the conducting wire
Between, be connected by plug-in connector between the afterbody plug and the conducting wire.
5. relay protection Special short line according to claim 1, it is characterised in that：The miniature ammeter is that range is
The ammeter of 10mA to 10A.
6. relay protection Special short line according to claim 1, it is characterised in that：The miniature ammeter passes through wiring
Terminal is connected with the conducting wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721502457.8U CN207381682U (en) | 2017-11-13 | 2017-11-13 | Relay protection Special short line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721502457.8U CN207381682U (en) | 2017-11-13 | 2017-11-13 | Relay protection Special short line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207381682U true CN207381682U (en) | 2018-05-18 |
Family
ID=62332910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721502457.8U Active CN207381682U (en) | 2017-11-13 | 2017-11-13 | Relay protection Special short line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207381682U (en) |
-
2017
- 2017-11-13 CN CN201721502457.8U patent/CN207381682U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |