CN208833811U - A kind of short connecting current terminal device - Google Patents
A kind of short connecting current terminal device Download PDFInfo
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- CN208833811U CN208833811U CN201821558491.1U CN201821558491U CN208833811U CN 208833811 U CN208833811 U CN 208833811U CN 201821558491 U CN201821558491 U CN 201821558491U CN 208833811 U CN208833811 U CN 208833811U
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- short
- busbar
- insulating base
- circuit
- current terminal
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Abstract
The utility model discloses a kind of short connecting current terminal devices, comprising: short-circuit plug, busbar, insulating base and insulated handle.The short connecting current terminal device that this programme provides, staff, which holds insulated handle, makes the short circuit hole of the short-circuit plug being installed on the busbar of insulating base insertion and terminal block, insulated handle has certain length, so that the distance between staff and terminal block are safe distance, in compared with the existing technology almost zero distance operation mode, improve secondary side winding open circuit when fault detection and non-failure conditions under be shorted secondary side winding safety；And on busbar the position of short-circuit plug be shorted the position in hole it is corresponding, can reduce staff by short-circuit plug be inserted into be shorted hole difficulty, improve secondary side winding open circuit when fault detection and non-failure conditions under short circuit secondary side winding convenience.
Description
Technical field
The utility model relates to technical field of electric power, in particular to a kind of short connecting current terminal device.
Background technique
Current transformer is the instrument for variable-current according to a certain percentage, substantially a drop convertor transformer, energy
The high current of primary side is transformed into the low current of secondary side, according to the indicated value of ammeter and seizing the opportunity for transformer ratio when measurement,
It calculates primary side and is tested high current, survey big effect to realize with small, not only securely and reliably, but also it is accurate.
Current transformer at work, in addition to require wiring polarity correctly other than, it is secondary it further provides that its secondary side cannot open a way
Side must be grounded.
If secondary side wiring error will cause serious injury to operator, instrument and equipment safety.Current Mutual Inductance
For device when operating normally, the magnetic flux that secondary side current generates plays demagnetizing effect, exciting current to the magnetic flux that primary side current generates
Very little, total magnetic flux in iron core also very little, general tens volts of the induced electromotive force of secondary side winding.If secondary side is not formed
Circuit, the demagnetizing effect hour of secondary side current, primary side current become exciting current completely, and magnetic flux in iron core is caused to increase severely,
Iron core is in height saturation state, and there are many number of turns of secondary side winding in addition, will generate at the both ends that secondary side winding is opened a way
Very high voltage, peak value will seriously threaten staff and equipment up to thousands of volts even volts up to ten thousand, so high voltage
Safety, and will also result in core loss and greatly increase and seriously generate heat, or even burn out insulation.When handling second open circuit, to the greatest extent
It may be on nearest test cross-talk, by the short circuit of Current Transformer Secondary side, re-inspection processing open circuit point.It should be used when short circuit short
Road piece or Special short line.
In the prior art, secondary side winding open circuit and short circuit secondary side winding under non-failure conditions are using test lead
Be shorted, staff and terminal block it is almost nil distance operate, relative risk, and due to the connector lug of shorting stub compared with
It is small, it will affect the accuracy of operation with insulating glove, staff's hand operation, risk is very big.
Therefore, how to improve secondary side winding open circuit when fault detection and non-failure conditions under be shorted secondary side winding peace
Quan Xing becomes those skilled in the art's technical problem urgently to be resolved.
Utility model content
In view of this, the present invention provides a kind of short connecting current terminal devices, when improving secondary side winding open circuit
The safety of secondary side winding is shorted under fault detection and non-failure conditions.
To achieve the above object, the utility model provides the following technical solutions:
A kind of short connecting current terminal device, comprising:
Short-circuit plug, the number at least two of the short-circuit plug, the first end of the short-circuit plug and the electric current
Terminal cooperation, the position of the short-circuit plug are corresponding with the position in hole is shorted；
Busbar, the busbar are connect with the second end of the short-circuit plug；
Insulating base, the busbar are installed on the insulating base；
The insulated handle being connect with the insulating base, length extending direction and the short-circuit plug of the insulated handle
Length extending direction is identical.
Preferably, in above-mentioned short connecting current terminal device, the insulated handle is scalable insulated handle.
Preferably, in above-mentioned short connecting current terminal device, the insulated handle is threadedly coupled with the insulating base.
Preferably, in above-mentioned short connecting current terminal device, the insulated handle at least has there are three telescopic joint.
Preferably, in above-mentioned short connecting current terminal device, the short-circuit plug is threadedly coupled with the busbar.
Preferably, in above-mentioned short connecting current terminal device, the insulating base is plastic insulation seat, the busbar and institute
Insulating base injection molding connection is stated, the end face of the busbar is concordant with the end face of the insulating base.
Preferably, in above-mentioned short connecting current terminal device, the insulating base is rubber-covered seat, the end of the busbar
Face is concordant with the end face of the insulating base.
It can be seen from the above technical proposal that short connecting current terminal device provided by the utility model, comprising: be shorted and insert
Head, busbar, insulating base and insulated handle.The short connecting current terminal device that this programme provides, staff hold insulated handle
Make the short circuit hole of the short-circuit plug being installed on the busbar of insulating base insertion and terminal block, insulated handle has certain length
Degree so that the distance between staff and terminal block be safe distance, compared with the existing technology in almost zero distance operate
Mode, improve secondary side winding open circuit when fault detection and non-failure conditions under be shorted secondary side winding safety；And
The position of short-circuit plug is corresponding with the position in hole is shorted on busbar, can reduce staff for short-circuit plug and is inserted into short circuit hole
Difficulty, improve secondary side winding open circuit when fault detection and non-failure conditions under be shorted secondary side winding convenience.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of short connecting current terminal device provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of short connecting current terminal device (concealing handle) provided by the embodiment of the utility model.
1, short-circuit plug, 2, busbar, 3, insulating base, 4, insulated handle.
Specific embodiment
The utility model discloses a kind of short connecting current terminal device, when improving secondary side winding open circuit fault detection and
The safety of secondary side winding is shorted under non-failure conditions.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1 and Fig. 2 are please referred to, Fig. 1 is the structural representation of short connecting current terminal device provided by the embodiment of the utility model
Figure；Fig. 2 is the structural schematic diagram of short connecting current terminal device (concealing handle) provided by the embodiment of the utility model.
The utility model discloses a kind of short connecting current terminal devices, comprising: short-circuit plug 1, busbar 2,3 and of insulating base
Insulated handle 4.
The number at least two of short-circuit plug 1, the first end and current terminal of short-circuit plug 1 cooperate, short-circuit plug 1
Second end is connect with busbar 2, and short-circuit plug 1 is inserted into the short circuit hole of terminal block, position and the short circuit hole of short-circuit plug 1
Position is corresponding.
Busbar 2 is for realizing the electric conductivity between two neighboring short-circuit plug 1.
Insulating base 3 realizes the whole fixation formed to busbar 2 and short-circuit plug 1 for installing busbar 2.
Insulating base 3 is connect with insulated handle 4, and insulated handle 4 has widened distance of the staff apart from terminal block.
The short connecting current terminal device that this programme provides, staff, which holds insulated handle 4, to be made to be installed on leading for insulating base 3
The insertion of short-circuit plug 1 and the short circuit hole of terminal block, insulated handle 4 on electricity row 2 have certain length so that staff with
The distance between terminal block be safe distance, compared with the existing technology in almost zero distance operation mode, improve secondary side
Winding open a way when fault detection and non-failure conditions under be shorted secondary side winding safety；And short-circuit plug 1 on busbar 2
Position be shorted the position in hole it is corresponding, can reduce staff by short-circuit plug 1 insertion short circuit hole difficulty, improve two
Secondary side winding open a way when fault detection and non-failure conditions under be shorted secondary side winding convenience.
The length extending direction of insulated handle 4 and the length extending direction of short-circuit plug 1 are identical, and staff is apart from terminal
The distance of row is the sum of the length of 3 length of length+insulating base of insulated handle 4.
In a specific embodiment of this programme, insulating base 3 is cuboid insulating base 3, and busbar 2 is cuboid
Busbar 2, it is preferred that the length of busbar 2 and the end face equal length of the insulating base 3 where busbar 2, the thickness of busbar 2
Degree is less than the thickness of insulating base 3.Herein it should be noted that the thickness direction of insulating base 3 is that insulating base 3 is long along short-circuit plug 1
The direction of degree.
The length of busbar 2 is longer, and the quantity for the short-circuit plug 1 that can be installed is also more, can be to a certain extent
Improve working efficiency.
In a specific embodiment of this programme, insulated handle 4 is scalable insulated handle, this kind of design method enhancing
The versatility of short connecting current terminal device is suitable for various working environments.
In order to facilitate the assembling of insulated handle 4 and insulating base 3, insulated handle 4 is threadedly coupled with insulating base 3.
Insulated handle 4 is detachably connected with insulating base 3, and short connecting current terminal device can be facilitated to store and transport.
In a specific embodiment of this programme, insulated handle 4 at least has there are three telescopic joint, the length of single telescopic joint
Degree is 0.3-0.5m.
In a specific embodiment of this programme, short-circuit plug 1 is threadedly coupled with busbar 2.The mode of threaded connection
The installation difficulty of short-circuit plug 1 Yu busbar 2 is reduced, and can according to need the short circuit installed on adjustment busbar 2 and insert
The distance between first 1 quantity and adjacent short-circuit plug 1 further improve the versatility of short connecting current terminal device.
In a specific embodiment of this programme, insulating base 3 is plastic insulation seat, and busbar 2 and the injection molding of insulating base 3 connect
It connects, the end face of busbar 2 is concordant with the end face of insulating base 3.
In another specific embodiment of this programme, insulating base 3 is rubber-covered seat, the end face of busbar 2 and insulation
The end face of seat 3 is concordant.
In the third specific embodiment of this programme, insulating base 3 be epoxy resins insulation seat 3, the end face of busbar 2 with
The end face of insulating base 3 is concordant.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (7)
1. a kind of short connecting current terminal device characterized by comprising
Short-circuit plug (1), the number at least two of the short-circuit plug (1), the first end of the short-circuit plug (1) with it is described
Current terminal cooperation, the position of the short-circuit plug (1) are corresponding with the position in hole is shorted；
Busbar (2), the busbar (2) connect with the second end of the short-circuit plug (1)；
Insulating base (3), the busbar (2) are installed on the insulating base (3)；
The insulated handle (4) being connect with the insulating base (3), the length extending direction and the short circuit of the insulated handle (4)
The length extending direction of plug (1) is identical.
2. short connecting current terminal device according to claim 1, which is characterized in that the insulated handle (4) is scalable
Insulated handle.
3. short connecting current terminal device according to claim 1, which is characterized in that the insulated handle (4) and it is described absolutely
Edge seat (3) is threadedly coupled.
4. short connecting current terminal device according to claim 1, which is characterized in that the insulated handle (4) at least has
Three telescopic joints.
5. short connecting current terminal device according to claim 1, which is characterized in that the short-circuit plug (1) is led with described
Electricity row (2) is threadedly coupled.
6. short connecting current terminal device according to claim 1, which is characterized in that the insulating base (3) is plastic insulation
Seat, the busbar (2) and the insulating base (3) injection molding connect, end face and the insulating base (3) of the busbar (2)
End face is concordant.
7. short connecting current terminal device according to claim 1, which is characterized in that the insulating base (3) is rubber-covered
Seat, the end face of the busbar (2) are concordant with the end face of the insulating base (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821558491.1U CN208833811U (en) | 2018-09-21 | 2018-09-21 | A kind of short connecting current terminal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821558491.1U CN208833811U (en) | 2018-09-21 | 2018-09-21 | A kind of short connecting current terminal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208833811U true CN208833811U (en) | 2019-05-07 |
Family
ID=66317710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821558491.1U Active CN208833811U (en) | 2018-09-21 | 2018-09-21 | A kind of short connecting current terminal device |
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| Country | Link |
|---|---|
| CN (1) | CN208833811U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051516A (en) * | 2020-08-03 | 2020-12-08 | 广东电网有限责任公司 | Current transformer secondary circuit short circuit instrument |
| CN112531394A (en) * | 2020-11-27 | 2021-03-19 | 贵州电网有限责任公司 | Current loop short circuit instrument convenient to adjustment |
| CN112630474A (en) * | 2020-12-10 | 2021-04-09 | 广东电网有限责任公司中山供电局 | Integral type area insulating handle's current transformer secondary circuit short circuit instrument |
| CN112698074A (en) * | 2020-12-10 | 2021-04-23 | 广东电网有限责任公司中山供电局 | Adjustable current transformer secondary circuit short-circuit tool with insulating handle |
-
2018
- 2018-09-21 CN CN201821558491.1U patent/CN208833811U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051516A (en) * | 2020-08-03 | 2020-12-08 | 广东电网有限责任公司 | Current transformer secondary circuit short circuit instrument |
| CN112531394A (en) * | 2020-11-27 | 2021-03-19 | 贵州电网有限责任公司 | Current loop short circuit instrument convenient to adjustment |
| CN112630474A (en) * | 2020-12-10 | 2021-04-09 | 广东电网有限责任公司中山供电局 | Integral type area insulating handle's current transformer secondary circuit short circuit instrument |
| CN112698074A (en) * | 2020-12-10 | 2021-04-23 | 广东电网有限责任公司中山供电局 | Adjustable current transformer secondary circuit short-circuit tool with insulating handle |
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