CN103487614B - A kind of safe Current Transformer Secondary test device combination - Google Patents
A kind of safe Current Transformer Secondary test device combination Download PDFInfo
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- CN103487614B CN103487614B CN201310492688.5A CN201310492688A CN103487614B CN 103487614 B CN103487614 B CN 103487614B CN 201310492688 A CN201310492688 A CN 201310492688A CN 103487614 B CN103487614 B CN 103487614B
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- current transformer
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- transformer secondary
- joint
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- 238000012360 testing method Methods 0.000 title claims abstract description 85
- 238000004806 packaging method and process Methods 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 abstract description 16
- 239000004020 conductor Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
Abstract
The invention discloses a kind of Current Transformer Secondary test device, including: being used for the multiple wire clamps being clipped on each terminal of current transformer respectively, each wire clamp one end with a wire respectively is welded and carries out plastic packaging, and the other end of multiple conducting wires is connected with each other.The invention also discloses the combination of a kind of Current Transformer Secondary test device, the joint of the test wire of multiple Current Transformer Secondary test device is connected with each other.The Current Transformer Secondary test device of the present invention has the advantages that when test, as long as reserving three terminals of winding to be tested, is clipped in one by one on other terminals of current transformer by clip；When changing the winding to be tested, it is only necessary to the clip on three terminals of the winding being intended to test unloads, on three terminals of the winding being clipped in test last time respectively, easy and simple to handle, time saving and energy saving.
Description
Technical field
The present invention relates to Current Transformer Secondary test device and combinations thereof.
Background technology
At the capital construction of transformer station with need to change the working site of current transformer, secondary is examined
Repair teams and groups to need current transformer is tested.As it is shown in fig. 7, set on current transformer 100
There are multiple terminal 101, wherein three corresponding windings of terminal, because of Current Transformer Secondary side not
Can open a way, when testing one of them winding (three terminals idle in corresponding diagram),
Need the terminal 101 of other windings (in addition to be tested) of current transformer envelope line
102 (annealed copper wire) short circuit.The defect of prior art is, uses envelope line 102 to be wound around terminal 101 and makes
All winding short circuits, time-consuming laborious again, and after testing one of them winding, in addition it is also necessary to
Rewind again after envelope line 102 is removed.
Summary of the invention
In view of the foregoing defects the prior art has, the technical problem to be solved in the present invention is, carries
For a kind of Current Transformer Secondary test device easy and simple to handle.
For solving above-mentioned technical problem, the invention provides a kind of Current Transformer Secondary test dress
Put, including: it is used for the multiple wire clamps being clipped on each terminal of current transformer respectively, each
Plastic packaging is welded and carried out in described wire clamp one end with a wire respectively, many described wires another
One end is connected with each other.
As preferably, also including a test wire, one end of described test wire is provided with joint, institute
State one end that the other end of test wire is connected with many described wires to be connected.
As preferably, many described wire connection plastic packagings.
As preferably, the quantity of described wire clamp is the multiple of three.
Present invention also offers Current Transformer Secondary test device combination, including multiple as above
Described Current Transformer Secondary test device, multiple described Current Transformer Secondary test device
The joint of test wire be connected with each other.
As one of preferably, each described joint include respectively the plug that electrically connects with test wire and
The jack grafting of jack, the plug of one of them joint and another joint.
As one of preferably, also including a connecting rod, the two ends of described connecting rod connect respectively
One described joint；Each described joint includes plug and the jack electrically connected with test wire respectively；
Described connecting rod includes conducting rod and the insulation sleeve being wrapped in outside described conducting rod, described connecting rod
The plug for described joint that is respectively arranged at two ends with insert the perforate that electrically connects with described conducting rod.
Current Transformer Secondary test device of the present invention and combinations thereof has the advantages that
When terminal on current transformer is less, use a Current Transformer Secondary test device i.e.
Can, when test, as long as reserving three terminals of winding to be tested, clip is pressed from both sides one by one
On other terminals of current transformer；When changing the winding to be tested, it is only necessary to will
Clip on three terminals of the winding to be tested unloads, and is clipped in the winding of test last time respectively
On three terminals, easy and simple to handle, time saving and energy saving.Terminal on current transformer is more
Time, select the combination of multiple Current Transformer Secondary test device to carry out short-circuit operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Current Transformer Secondary test device of the present invention；
Fig. 2 is the structural representation of the wire clamp of the Current Transformer Secondary test device shown in Fig. 1；
Fig. 3 is the structural representation of the test wire of the Current Transformer Secondary test device shown in Fig. 1
Figure；
Fig. 4 is by connecting rod connecing the test wire of two Current Transformer Secondary test devices
The structural representation that head is attached；
Fig. 5 is by connecting rod connecing the test wire of three Current Transformer Secondary test devices
The structural representation that head is attached, wherein the two ends of a connecting rod connect a joint respectively,
Another joint and the joint grafting being connected in connecting rod；
Fig. 6 is the sectional view of the connecting rod in Fig. 4 and Fig. 5；
Fig. 7 is to use envelope line by the knot of a part of terminal short circuit of current transformer in prior art
Structure schematic diagram.
Detailed description of the invention
With specific embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings, but does not makees
For limitation of the invention.
The situation that arranges of the terminal 101 that refer to the current transformer 100 shown in Fig. 7 is managed
Solve structure and the usage of the Current Transformer Secondary test device 10 of the present invention.
As shown in Figure 1-Figure 3, the Current Transformer Secondary test device of the present embodiment, including:
A piece test wire 3, one end of test wire 3 is provided with joint 4；It is respectively intended to be clipped in current transformer
Six wire clamps 1 on each terminal 101 of 100；Six conductors 2, each wire clamp 1 and one
Plastic packaging is welded and carried out in one end of wire 2, the other end of six conductors 2 be connected with each other and with examination
Test plastic packaging after the other end welding of line 3.The a-quadrant shown in dotted line frame in FIG, the six roots of sensation
The termination of wire 2 is connected with each other and is connected with the termination of test wire 3, can use mechanical connection,
As kinked together, but this connected mode is less reliable, preferably, or
The termination of six conductors 2 and the termination of test wire 3 are welded together, its mechanical strength connected
And the Reliability comparotive of electrical connection is good.For the sake of security, although Fig. 1 is not shown, can be
Region shown in Fig. 1 carries out plastic packaging after being attached.
In the present embodiment, the number of the wire clamp 1 in each Current Transformer Secondary test device 10
Amount is six, as long as the multiple of actually three.Why it is set to the multiple of three, is
Because power system includes three-phase electricity, therefore the number of terminals on current transformer is the multiple of three,
The quantity of required wire clamp 1 is exactly naturally also the multiple of three.If being certainly not configured to three
Multiple also can use, and simply has unnecessary idle wire clamp 1 in use.
The quantity of wire clamp 1 can be according to the number of the terminal 101 on current transformer 100 to be tested
Amount is determined, and terminal 101 number on current transformer 100 as shown in Figure 7 is 24,
If using a Current Transformer Secondary test device to measure, then the quantity of its wire clamp 1
Should be 21.It addition, the shape of wire clamp 1 can be various ways, without such as the present embodiment
Equally, as long as the clamping with terminal can be realized and electrically connects.
In the Current Transformer Secondary shown in Fig. 1-Fig. 3 tests device 10, wire clamp 1 is 6,
Why it is set to 6 and is not provided as 21 and allows for wire clamp 1 quantity too much, wire
2 interconnective one end will be bigger, and its reliability connecting difficulty and connection can be by shadow
Ring.Well imagining, the solderable conductor of 21 wires is connected together, and will form a metal the biggest
Block, from the standpoint of being therefore reliability that is easy to make and that use, the quantity of wire clamp 1 can be
Shown in Fig. 1 for 6, or be 9 or 12, although may be configured as three appoint in theory
Meaning multiple, but from the standpoint of making, unsuitable too much, those skilled in the art can be according to reality
Border needs to select.
As in figure 2 it is shown, the Current Transformer Secondary of this enforcement tests the wire clamp 1 in device 10
Tail end is respectively equipped with the first chuck 11 and the second chuck 12, is insulating materials and makes, and the
The tail end of two chucks 12 offers the hole passed through for wire 2, and wire 2 makes after welding with wire clamp 1
With the second chuck 12 plastic packaging.Certainly, wire clamp 1 is good conductor.
As it is shown on figure 3, the joint 4 in the Current Transformer Secondary test device 10 of this enforcement,
Including plug 41 and the jack 42 electrically connected with test wire 3 respectively, plug 41 and jack 42 exist
Joint 4 is internal to be electrically connected with test wire 3.The size of the plug 41 of joint 4 and jack 42 chi
Very little match, owing to being standard component, be not repeated herein.If there being two joints 4, can be by wherein
The plug 41 of one joint 4 inserts in the jack 42 of another joint 4, and realizes both
Electrical connection.
It is noted that preferably, the electric current of the present embodiment as shown in Figure 1
Transformer second test device 10 includes a test wire 3, it practice, in the quantity of wire clamp 1
(the wire clamp 1 on a Current Transformer Secondary test device 10 in the case of meeting test needs
Minimum number is that the quantity of terminal 101 subtracts three, and certain more wire clamps 1 are also possible),
Test wire 3 can be removed, the short circuit between the terminal being connected with wire clamp 1 can be realized too.
Or multiple Current Transformer Secondary test devices 10 as shown in Figure 1 are combined and makes
With, its wire 2 interconnective one end electrical connection (a-quadrant in Fig. 1) also can realize surveying
The purpose of examination, only increases and connects the step that the interconnective one end of wire 2 is electrically connected.
From the above, for consideration easy to make, survey in the Current Transformer Secondary shown in Fig. 1
In electricity testing device 10, wire clamp 1 only six, then test as shown in Figure 7 be provided with 24
During the current transformer 100 of terminal 101, it is necessary to use four electric currents as shown in Figure 1 mutual
Sensor second test device 10 carry out with the use of, the joint 4 of its test wire 3 is connected with each other.
Certainly, have three wire clamps 1 and be in idle condition, they can be clipped in other and terminal 101
Carry out on the wire 2 of wire clamp 1 that clamps.Of course, it is possible to select three electricity as shown in Figure 1
Current transformer second test device 10, additionally selects a Current Mutual Inductance including three wire clamps 1
Device second test device.Mutual using multiple Current Transformer Secondary test device 10 to form electric current
During the combination of sensor second test device, its joint needs to be connected with each other, to realize all of them
Wire clamp (and terminal in connection) all short circuits.Refer to the joint 4 shown in Fig. 3
The inserting mode of two joints 4 of Structure Understanding, any two joint 4 can be each other by grafting
Mode connects, i.e. the plug 41 of one of them joint 4 is inserted with the jack 42 of another joint 4
Connect, multiple joints 4 can be linked together.
But, the mode of the direct grafting of joint 4, when joint 4 is more, it is understood that there may be connect
The problem of inconvenience.As shown in Figure 4, connected by connecting rod 6 between two joints 4, connect
The two ends of bar 6 connect a joint 4 respectively, and plug 41 inserts in connecting rod 6.Connecting rod 6
Structure as shown in Figure 6, connecting rod 6 includes conducting rod 61 and is wrapped in outside conducting rod 61
Insulation sleeve 62, connecting rod 6 be respectively arranged at two ends with the plug 41 for joint 4 insert with conduction
The perforate 63 of bar 61 electrical connection.
Fig. 5 shows the situation that three joints 4 are connected, two of which joint 4 by connecting rod 6
Insert connecting rod 6 respectively to be attached, in the plug of the 3rd joint 4 and two other joint
A jack plug, just achieve the connection between three joints 4.
In addition to using connecting rod, those skilled in the art can also adopt real in other ways
Connection between existing multiple joints 4, such as, can transform the connecting rod 6 in Fig. 6,
Prolong its length direction and can offer the jack that some plugs 41 for joint 4 insert, arrange in jack
Metallic conduction part electrically connect with conducting rod 61, the most also can realize conveniently realizing multiple joint
Connection between 4.The most such as, can be attached by the patchboard of a disc-shape, connect
The jack of one week is set on drum, at the internal mutually short circuit of patchboard between jack.
The use of device 10 is tested below in conjunction with the Current Transformer Secondary shown in Fig. 7 explanatory diagram 1
Method, uses four Current Transformer Secondary test devices 10, being wound with in Fig. 7 is sealed line 102
Terminal 101 use wire clamp 1 to clamp respectively, by four Current Transformer Secondary test devices 10
Four joints 4 use connecting rod 6 to be attached, two of which joint 4 can be used one
Connecting rod 6 forms situation as shown in Figure 4, and the most each joint 4 is distinguished grafting one again
Joint 4, just realizes the short circuit of the joint 4 of four Current Transformer Secondary test devices 10.With
The mode using envelope line 102 to connect is compared, simple, convenient.
When changing the winding to be tested, it is only necessary on three terminals of the winding being intended to test
Clip unloads, and is clipped in three terminals of winding of test last time respectively (i.e. not by coiling in Fig. 7
Terminal) upper, easy and simple to handle, time saving and energy saving.
Certainly, the above is the preferred embodiment of the present invention, it is noted that for this skill
For the those of ordinary skill in art field, under the premise without departing from the principles of the invention, it is also possible to
Making some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (5)
1. the combination of Current Transformer Secondary test device, it is characterised in that include multiple electric current
Transformer second test device；
The most each Current Transformer Secondary test device, including:
A () is used for the multiple wire clamps being clipped on each terminal of current transformer respectively,
Plastic packaging is welded and carried out in each described wire clamp one end with a wire respectively, described in many
The other end of wire is connected with each other；
B () also includes a test wire, one end of described test wire is provided with joint, described test
One end that the other end of line is connected with many described wires is connected；
The joint of the test wire of plurality of described Current Transformer Secondary test device interconnects mutually
Connect.
2. the combination of Current Transformer Secondary test device as claimed in claim 1, its feature
Being, each described joint includes plug and the jack electrically connected with test wire, Qi Zhongyi respectively
The plug of individual joint and the jack grafting of another joint.
3. the combination of Current Transformer Secondary test device as claimed in claim 1, its feature
Being, the combination of described Current Transformer Secondary test device also includes a connecting rod, described
The two ends of connecting rod connect a described joint respectively；
Each described joint includes plug and the jack electrically connected with test wire respectively；
Described connecting rod includes conducting rod and the insulation sleeve being wrapped in outside described conducting rod, described company
The plug for described joint that is respectively arranged at two ends with of extension bar inserts and opening that described conducting rod electrically connects
Hole.
4. the combination of Current Transformer Secondary test device as claimed in claim 1, its feature
It is, many described wire connection plastic packagings.
5. the combination of Current Transformer Secondary test device as claimed in claim 1, its feature
It is,
The quantity of described wire clamp is the multiple of three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310492688.5A CN103487614B (en) | 2013-10-18 | 2013-10-18 | A kind of safe Current Transformer Secondary test device combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310492688.5A CN103487614B (en) | 2013-10-18 | 2013-10-18 | A kind of safe Current Transformer Secondary test device combination |
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| Publication Number | Publication Date |
|---|---|
| CN103487614A CN103487614A (en) | 2014-01-01 |
| CN103487614B true CN103487614B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310492688.5A Active CN103487614B (en) | 2013-10-18 | 2013-10-18 | A kind of safe Current Transformer Secondary test device combination |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104062623A (en) * | 2014-07-03 | 2014-09-24 | 国家电网公司 | Low-voltage-side short circuit device for high-voltage electric transformer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2394338Y (en) * | 1999-09-08 | 2000-08-30 | 大铭电业股份有限公司 | Personal ground leads |
| CN201307691Y (en) * | 2008-09-26 | 2009-09-09 | 北京市电力公司 | Switching device and current transformer testing line |
| CN201450133U (en) * | 2009-06-05 | 2010-05-05 | 上海梅山钢铁股份有限公司 | Low-voltage grounding protection device |
| CN201466258U (en) * | 2009-09-08 | 2010-05-12 | 石家庄霞光电力安全设备有限公司 | Special grounding wire for high/low-voltage cable branch box |
| CN202057683U (en) * | 2011-05-13 | 2011-11-30 | 河南省电力公司驻马店供电公司 | Secondary short-link line used for insulation test |
| CN103337760A (en) * | 2013-07-03 | 2013-10-02 | 国家电网公司 | Secondary short circuiting line for CT and PT |
| CN203519666U (en) * | 2013-10-18 | 2014-04-02 | 国家电网公司 | Current-transformer secondary testing device and combination thereof |
-
2013
- 2013-10-18 CN CN201310492688.5A patent/CN103487614B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2394338Y (en) * | 1999-09-08 | 2000-08-30 | 大铭电业股份有限公司 | Personal ground leads |
| CN201307691Y (en) * | 2008-09-26 | 2009-09-09 | 北京市电力公司 | Switching device and current transformer testing line |
| CN201450133U (en) * | 2009-06-05 | 2010-05-05 | 上海梅山钢铁股份有限公司 | Low-voltage grounding protection device |
| CN201466258U (en) * | 2009-09-08 | 2010-05-12 | 石家庄霞光电力安全设备有限公司 | Special grounding wire for high/low-voltage cable branch box |
| CN202057683U (en) * | 2011-05-13 | 2011-11-30 | 河南省电力公司驻马店供电公司 | Secondary short-link line used for insulation test |
| CN103337760A (en) * | 2013-07-03 | 2013-10-02 | 国家电网公司 | Secondary short circuiting line for CT and PT |
| CN203519666U (en) * | 2013-10-18 | 2014-04-02 | 国家电网公司 | Current-transformer secondary testing device and combination thereof |
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| Publication number | Publication date |
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| CN103487614A (en) | 2014-01-01 |
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Effective date of registration: 20160707 Address after: 066000 Haiyang Road, Qinhuangdao Harbour District, Hebei, No. 50 Applicant after: Qinhuangdao Power Supply Company of State Grid Jibei Electric Power Company Limited Applicant after: State Grid Corporation of China Address before: 100761 West Chang'an Avenue, Beijing, No. 86, No. Applicant before: State Grid Corporation of China Applicant before: Qinhuangdao Power Supply Company of State Grid Jibei Electric Power Company Limited |
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