CN205643676U - Mutual -inductor secondary terminal short circuit system - Google Patents
Mutual -inductor secondary terminal short circuit system Download PDFInfo
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- CN205643676U CN205643676U CN201620056027.7U CN201620056027U CN205643676U CN 205643676 U CN205643676 U CN 205643676U CN 201620056027 U CN201620056027 U CN 201620056027U CN 205643676 U CN205643676 U CN 205643676U
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Abstract
The utility model discloses a mutual -inductor secondary terminal short circuit system contains: high pressure input, a plurality of groups short circuit circuit, every group the short circuit circuit contain: output terminal, select switch, its one end links to each other with output terminal, and high pressure input's earthing terminal and measuring junction is connected respectively at both ends in addition for output terminal switches between earthing terminal and measuring junction. The utility model discloses can work a telephone switchboard fast to switchover through modular and link to each other with mutual inductor body secondary terminal to realize the short circuit of various model mutual -inductor secondary side, ground connection or winding X end directly grounded function through the quick wire jumper on the switching box.
Description
Technical field
This utility model relates to transformer test, particularly to a kind of transformer secondary terminals short circuit system.
Background technology
The transformer number of applications of solid insulation gets more and more at present; and electrical test, relay protection real work in it is frequently necessary to transformer secondary circuit short-circuit, ground connection (being applicable to rheology) or winding X end are directly grounded (being applicable to buckling); and transformer secondary terminals is less due to lug, Conventional attachment methods is inconvenient for.
The equipment of tradition transformer secondary terminals connects tied silk solderless wrapped connection or the mode of alligator clamp of often using, but both there is bigger potential safety hazard and use inconvenience.Tied silk solderless wrapped connection is easily touched the most mutually, causes test data mistake, does not notes being easy for causing forgeing simultaneously, causes significant damage.The mode of alligator clamp then cannot be pressed from both sides surely owing to transformer secondary terminals is too small, if it occur that chuck ejects during test is carried out, it is easy to cause personnel to injure, if in high-potting, grounding connection ejects simultaneously, second open circuit, the serious consequence of equipment damage can be caused.Meanwhile, in a complete set first and second for transformer is tested, transformer secondary terminals will reconfiguration line, troublesome poeration frequently, easily cause careless omission.
Utility model content
The purpose of this utility model is to provide a kind of transformer secondary terminals short circuit system, it is connected with transformer body secondary terminals by the switching of modular fast-wiring, and realizes various type mutual inductor secondary circuit short-circuit, ground connection or winding X end by the quick wire jumper on interconnecting device and be directly grounded function.
In order to realize object above, this utility model is achieved through the following technical solutions:
A kind of transformer secondary terminals short circuit system, is characterized in, comprises:
High voltage input terminal；
Some groups of short-circuit, often organize described short-circuit and comprise: lead-out terminal；
Selecting switch, its one end is connected with lead-out terminal, and additionally two ends connect the earth terminal of high voltage input terminal respectively and measure end, switches between earth terminal and measurement end for lead-out terminal.
Described input terminal comprises short circuit between the first terminal and the second terminal, and described the first terminal and the second terminal and connects.
Described short-circuit also comprises: self-inspection loop, and it is connected with described lead-out terminal circuit.
Described self-inspection loop comprises: the self-test switch connected with lead-out terminal and display lamp.
This transformer secondary terminals short circuit system also comprises voltmeter, between its earth terminal being connected to high voltage input terminal and shielding end.
This transformer secondary terminals short circuit system also comprises transformer earth terminal, and it is used for ground connection.
This utility model compared with prior art, has the advantage that
1, the transformer of all kinds of model, modularized design, wiring Portable safety it are adapted to.
2, realizing wire jumper function by short-circuit device in inside, primary connection can complete all tests, it is not necessary to reconfiguration line, easy to operate.
3, inside arranges self-inspection loop, it is ensured that transformer secondary terminals at the trial is not opened a way, and ensures equipment safety.
4, it is provided with voltmeter in device, reading operation can be completed, be also possible to prevent testing crew warm swap circuit by mistake simultaneously.
Accompanying drawing explanation
Fig. 1 is the structure chart of this utility model a kind of transformer secondary terminals short circuit system.
Detailed description of the invention
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, this utility model is further elaborated.
As it is shown in figure 1, a kind of transformer secondary terminals short circuit system, comprise: high voltage input terminal；4 groups of short-circuit, often organize described short-circuit and comprise: lead-out terminal；Selecting switch, its one end is connected with lead-out terminal, and additionally two ends connect the earth terminal (E end) of high voltage input terminal respectively and measure end (L end), at earth terminal and measures switching between end for lead-out terminal.In the present embodiment, due to for 4 groups of short-circuit, so, lead-out terminal is 4 and is respectively IS1, IS2, IS3, IS4, and corresponding selection switch is SQ1, SQ2, SQ3, SQ4.
Above-mentioned input terminal comprises short circuit between the first terminal and the second terminal, and described the first terminal and the second terminal and connects.
Above-mentioned short-circuit also comprises: self-inspection loop, and it is connected with described lead-out terminal circuit.
Above-mentioned self-inspection loop comprises: the self-test switch (SB1, SB2, SB3, SB4) connected with lead-out terminal and display lamp.For confirming transformer secondary coil all reliable short circuits in inside, it is ensured that secondary terminals open circuit will not be occurred during test to cause equipment to damage.
This short circuit system also comprises voltmeter, and it is connected between the earth terminal of high voltage input terminal and shielding end (G end), and shielding end is wrapped in the surrounding measuring home loop L, for eliminating the leakage current in circuit.
This short circuit system also comprises transformer earth terminal, and it is used for ground connection.
A kind of transformer secondary terminals short circuit method, the method comprises the steps of:
S1, is connected to transformer secondary terminals on outfan and transformer earth terminal；
S2, the selection switch in the different group of switching so that lead-out terminal is connected with the earth terminal of high voltage input terminal and/or lead-out terminal is connected with the measurement end of high voltage input terminal.
In a particular embodiment, according to transformer secondary terminals feature, select three groups of lead-out terminals, the 4th group of not wiring.Can test after lead-out terminal, high input voltage terminal, transformer ground terminal are all reliably connected.
As when transformer high voltage side carries out insulating pressure test, then select switch (SQ1, SQ2, SQ3, SQ4) to be all allocated to ground side by all, the requirement of the whole ground connection of secondary terminals in test can be realized.
As carried out the insulation pressure test between low pressure winding in transformer low-pressure side, then being allocated to measure end by selection switch corresponding for the winding needing test, remaining is allocated to earth terminal, can test.Measurement between multiple windings all can be completed by internal jumper easily, it is not necessary to frequent reconfiguration line again.Go back Observable voltmeter auxiliary during measurement to test.
In a particular embodiment, also comprise before above-mentioned steps S1:
S0, the self-test switch that Guan Bi is in series with described outfan, check that display lamp is the most luminous, the most then illustrate that the shorted on both ends of outfan is reliable, if it is not, then illustrate that the shorted on both ends of outfan is unreliable.
In sum, this utility model one transformer secondary terminals short circuit system and short circuit method, it is connected with transformer body secondary terminals by the switching of modular fast-wiring, and realizes the functions such as various type mutual inductor secondary circuit short-circuit, ground connection or winding X end are directly grounded by the quick wire jumper on interconnecting device.
Although content of the present utility model has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that the description above is not considered as restriction of the present utility model.After those skilled in the art have read foregoing, multiple amendment of the present utility model and replacement all be will be apparent from.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (4)
1. a transformer secondary terminals short circuit system, it is characterised in that comprise:
High voltage input terminal；
Some groups of short-circuit, often organize described short-circuit and comprise: lead-out terminal；
Selecting switch, its one end is connected with lead-out terminal, and additionally two ends connect the earth terminal of high voltage input terminal respectively and measure end, switches between earth terminal and measurement end for lead-out terminal；
Described input terminal comprises short circuit between the first terminal and the second terminal, and described the first terminal and the second terminal and connects；
This short circuit system also comprises transformer earth terminal, and it is used for ground connection.
2. transformer secondary terminals short circuit system as claimed in claim 1, it is characterised in that described short-circuit also comprises: self-inspection loop, and it is connected with described lead-out terminal circuit.
3. transformer secondary terminals short circuit system as claimed in claim 2, it is characterised in that described self-inspection loop comprises: the self-test switch connected with lead-out terminal and display lamp.
4. the transformer secondary terminals short circuit system as described in any one of claim 1-3, it is characterised in that also comprise voltmeter, between its earth terminal being connected to high voltage input terminal and shielding end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620056027.7U CN205643676U (en) | 2016-01-20 | 2016-01-20 | Mutual -inductor secondary terminal short circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620056027.7U CN205643676U (en) | 2016-01-20 | 2016-01-20 | Mutual -inductor secondary terminal short circuit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205643676U true CN205643676U (en) | 2016-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620056027.7U Active CN205643676U (en) | 2016-01-20 | 2016-01-20 | Mutual -inductor secondary terminal short circuit system |
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| CN (1) | CN205643676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109814060A (en) * | 2019-01-03 | 2019-05-28 | 广西电网有限责任公司贵港供电局 | The verification system and its method of more high-tension current inductors |
-
2016
- 2016-01-20 CN CN201620056027.7U patent/CN205643676U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109814060A (en) * | 2019-01-03 | 2019-05-28 | 广西电网有限责任公司贵港供电局 | The verification system and its method of more high-tension current inductors |
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| GR01 | Patent grant |