CN109142806A - HVDC TEST test clamp - Google Patents
HVDC TEST test clamp Download PDFInfo
- Publication number
- CN109142806A CN109142806A CN201811067498.8A CN201811067498A CN109142806A CN 109142806 A CN109142806 A CN 109142806A CN 201811067498 A CN201811067498 A CN 201811067498A CN 109142806 A CN109142806 A CN 109142806A
- Authority
- CN
- China
- Prior art keywords
- bar shaped
- binding clip
- turning handle
- test
- piece
- 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.)
- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 57
- 230000000694 effects Effects 0.000 claims description 7
- 210000000080 chela (arthropods) Anatomy 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 4
- 206010014357 Electric shock Diseases 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
Abstract
A kind of HVDC TEST test clamp, the test clamp include binding clip and insulated handle；Binding clip connects the nippers shape that insulated handle forms X-shaped by main shaft, and the opening and clamping of binding clip are controlled by control insulated handle.Binding clip piece is replaceable component, can prepare the different binding clip piece of multiple radians to adapt to different clamping terminals, by more bringing realization flexible Application, use and its conveniently, flexibly.
Description
Technical field
The present invention relates to a kind of HVDC TEST test clamps.
Background technique
Capacitance type potential transformer (CVT) secondary winding D.C. resistance is tested at present, is used and is become for testing 500kV
Depressor/reactor winding D.C. resistance large-sized DC wire clamp, when which tests for 500kV transformer/reactor
Facilitate test to go on smoothly, but when carrying out the test of capacitance type potential transformer secondary winding, since wiring space is narrow,
Distance is small between binding post, and when using existing direct current wire clamp, meeting is too big because of wire clamp end volume, thickness is excessively high, to hold
The two poles of the earth short circuit easily occurs, and because wire clamp mouth is relatively narrow, the de- mouth situation of electrification is easy to happen in pressure process, gives work on the spot band
Carry out Danger Electric shock risk, influences personnel's personal safety.
Summary of the invention
Goal of the invention:
The present invention relates to a kind of HVDC TEST test clamps, the problems of previous the purpose is to solve.
Technical solution:
A kind of HVDC TEST test clamp, it is characterised in that: the test clamp includes binding clip (1) and insulated handle (2)；Pincers
Head (1) forms the nippers shape of X-shaped by main shaft (3) connection insulated handle (2), and pincers are controlled by control insulated handle (2)
The opening and clamping of head (1).
Binding clip (1) is the structure that the two binding clip pieces (1-1) that can mutually open and close are constituted, and insulated handle (2) is by two
The structure that the handle that can mutually open and close is constituted.
Torsional spring is cased on main shaft (3), torsional spring remains the power for clamping binding clip (1).
The root of two binding clip pieces (1-1) is (i.e. as shown in Figure 1 close to the position of main shaft (3)！) between be connected with tension bullet
Spring (4), back-moving spring (4) remain two binding clip pieces (1-1) are inwardly tensed power (i.e. in the state of not using, two
What a binding clip piece (1-1) made to be kept closed due to the effect of back-moving spring (4)！).
Binding clip piece (1-1) is can be with the structure for the arc being adapted by clamping connection line terminals (5) outer wall, two binding clip piece (1-
1) arc-shaped notch is opposite (as shown in Figure 2！), so that two binding clip pieces (1-1) can be in the two sides of bolt (5) by bolt (5)
It clamps.
For piercing through the pointed tooth structure of oxide layer at test point when being provided with use in the arc-shaped notch of binding clip piece (1-1)
(1-2).
Binding clip piece (1-1) is the structure that can be replaced, and binding clip piece (1-1) includes head (1-1-1) and piece root (1-1-2),
The front end of head (1-1-1) be can with the structure for the arc being adapted by clamping connection line terminals (5) outer wall, after head (1-1-1)
For that can cover the set in piece root (1-1-2) outside, two head (1-1-1) are nested in corresponding by respective set at end
On root (1-1-2), the lateral wall of the set of a head (1-1-1) is provided with bar shaped gap (1-1-3), bar shaped gap wherein
The lower end of (1-1-3) is extended to as entrance at the lower ending opening of set, and the upper end of bar shaped gap (1-1-3) is provided with circular through hole
(1-1-4), circular through hole (1-1-4) are connected to bar shaped gap (1-1-3)；
The front end outer side wall of one of piece root (1-1-2) is provided with the lateral protruding shaft (1- vertical with the side wall of piece root (1-1-2)
1-4), bar shaped turning handle (1-1-5) is provided on lateral protruding shaft (1-1-4)；The length direction of bar shaped turning handle (1-1-5) and transverse direction are convex
Axis (1-1-4) it is axially vertical, lateral protruding shaft (1-1-4) makes bar shaped turning handle (1-1- across the center of bar shaped turning handle (1-1-5)
5) it is arranged on lateral protruding shaft (1-1-4) and can be rotated with lateral protruding shaft (1-1-4) for axis；
The width of the width (H) of bar shaped turning handle (1-1-5) and bar shaped gap (1-1-3) is adapted, i.e. bar shaped turning handle (1-1-5)
Width, which meets, to be moved up and down in bar shaped gap (1-1-3)；
In use, rotating the length direction of bar shaped turning handle (1-1-5) in the same direction with the length direction of bar shaped gap (1-1-3)
(A condition as shown in FIG. 6！), then, by the front end of the piece root (1-1-2) to the head (1- for having bar shaped gap (1-1-3)
The open rearward end of set 1-1) simultaneously puts in piece root (1-1-2) in the set, so that bar shaped turning handle (1-1-5) is along bar shaped gap
The length direction of (1-1-3) is mobile, until bar shaped turning handle (1-1-5) is put in circular through hole (1-1-4), then by bar shaped turning handle
(1-1-5) rotation is vertical with the length of bar shaped gap (1-1-3) (position as shown in Figure 4) to length direction, completes to fix.
(in the process, another piece root (1-1-2) is directly put in the set of another head (1-1-1)！)
The length of bar shaped turning handle (1-1-5) meets can just the rotation in circular through hole (1-1-4).
When bar shaped turning handle (1-1-5) rotates, the both ends of bar shaped turning handle (1-1-5) are contacted with circular through hole (1-1-4) inner wall
It is mobile.(or the length of bar shaped turning handle (1-1-5) be slightly less than circular through hole (1-1-4) diameter)
It is provided with torsional spring on lateral protruding shaft (1-1-4), under normal conditions, bar shaped turning handle (1-1-5) keeps length under the effect of torsion spring
The direction state vertical with the length direction of bar shaped gap (1-1-3) (i.e. B state in Fig. 4).
Advantageous effect:
The present invention relates to a kind of HVDC TEST test clamp, the binding clips of 120 ° of camber lines of 1, structure member: binding clip --- band；Absolutely
Edge handle --- band antiskid thread, dielectric strength are high；Clamp force spring --- so that test clamp is in normally off；Fixed spiral shell
Bolt --- for being fixedly connected with Hi-pot test line；
Specific effect: it according to CVT, CT, PT secondary winding terminal diameter difference, designs and produces a kind of suitable for different-diameter
The test clamp of connecting terminal.The wire holder simple, good conductivity and is resistant to a certain size voltage electricity for safe operation
Stream contact with equipment under test good, contact securely and has and can pierce through (worn out) test when must resist dragging ability, test
The performances such as oxide layer at point.The wire clamp is small in size, light-weight, easy to operate, and clamping opening is thin and wide, since space is too small when avoiding testing
And wire clamp is caused to be shorted, and then cause instrument short-circuit；Collet interior does pointed tooth, can pierce through oxide layer；Folder face is designed using cambered surface,
It is more suitable for pressing from both sides cylindrical type connecting terminal；Using jack/bolt connecting mode, a variety of p-wires and test item can be matched；Its hand
Handle insulation, effectively prevent operating personnel's residual charge to get an electric shock.
In addition, binding clip piece is replaceable component, the different binding clip piece of multiple radians can be prepared to adapt to different folders
Tight terminal, by more bringing realization flexible Application, use and its conveniently, flexibly.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention;
Fig. 2 is state diagram when two binding clip pieces are engaged connecting terminal；
Fig. 3 is another form of overall structure diagram；
Local state figure when Fig. 4 is piece root and head locking；
Fig. 5 is the rear end side schematic view of head；
Fig. 6 is the state diagram before piece root and head locking；
Fig. 7 is local state figure when two piece roots integrally lock with head；
Fig. 8 is engaged state diagram when connecting terminal for binding clip piece in the prior art.
Specific embodiment
A kind of HVDC TEST test clamp, the test clamp include binding clip (1) and insulated handle (2)；Binding clip (1) is logical
The nippers shape that main shaft (3) connection insulated handle (2) forms X-shaped is crossed, binding clip (1) is controlled by control insulated handle (2)
It opens and clamps.
Binding clip (1) is the structure that the two binding clip pieces (1-1) that can mutually open and close are constituted, and insulated handle (2) is by two
The structure that the handle that can mutually open and close is constituted.
Torsional spring is cased on main shaft (3), torsional spring remains the power for clamping binding clip (1).
The root of two binding clip pieces (1-1) is (i.e. as shown in Figure 1 close to the position of main shaft (3)！) between be connected with tension bullet
Spring (4), back-moving spring (4) remain two binding clip pieces (1-1) are inwardly tensed power (i.e. in the state of not using, two
What a binding clip piece (1-1) made to be kept closed due to the effect of back-moving spring (4)！).
Binding clip piece (1-1) is can be with the structure for the arc being adapted by clamping connection line terminals (5) outer wall, two binding clip piece (1-
1) arc-shaped notch is opposite (as shown in Figure 2！), so that two binding clip pieces (1-1) can be in the two sides of bolt (5) by bolt (5)
It clamps.
For piercing through the pointed tooth structure of oxide layer at test point when being provided with use in the arc-shaped notch of binding clip piece (1-1)
(1-2).
Binding clip piece (1-1) is the structure that can be replaced, and binding clip piece (1-1) includes head (1-1-1) and piece root (1-1-2),
The front end of head (1-1-1) be can with the structure for the arc being adapted by clamping connection line terminals (5) outer wall, after head (1-1-1)
For that can cover the set in piece root (1-1-2) outside, two head (1-1-1) are nested in corresponding by respective set at end
On root (1-1-2), the lateral wall of the set of a head (1-1-1) is provided with bar shaped gap (1-1-3), bar shaped gap wherein
The lower end of (1-1-3) is extended to as entrance at the lower ending opening of set, and the upper end of bar shaped gap (1-1-3) is provided with circular through hole
(1-1-4), circular through hole (1-1-4) are connected to bar shaped gap (1-1-3)；
The front end outer side wall of one of piece root (1-1-2) is provided with the lateral protruding shaft (1- vertical with the side wall of piece root (1-1-2)
1-4), bar shaped turning handle (1-1-5) is provided on lateral protruding shaft (1-1-4)；The length direction of bar shaped turning handle (1-1-5) and transverse direction are convex
Axis (1-1-4) it is axially vertical, lateral protruding shaft (1-1-4) makes bar shaped turning handle (1-1- across the center of bar shaped turning handle (1-1-5)
5) it is arranged on lateral protruding shaft (1-1-4) and can be rotated with lateral protruding shaft (1-1-4) for axis；
The width of the width (H) of bar shaped turning handle (1-1-5) and bar shaped gap (1-1-3) is adapted, i.e. bar shaped turning handle (1-1-5)
Width, which meets, to be moved up and down in bar shaped gap (1-1-3)；
In use, rotating the length direction of bar shaped turning handle (1-1-5) in the same direction with the length direction of bar shaped gap (1-1-3)
(A condition as shown in FIG. 6！), then, by the front end of the piece root (1-1-2) to the head (1- for having bar shaped gap (1-1-3)
The open rearward end of set 1-1) simultaneously puts in piece root (1-1-2) in the set, so that bar shaped turning handle (1-1-5) is along bar shaped gap
The length direction of (1-1-3) is mobile, until bar shaped turning handle (1-1-5) is put in circular through hole (1-1-4), then by bar shaped turning handle
(1-1-5) rotation is vertical with the length of bar shaped gap (1-1-3) (position as shown in Figure 4) to length direction, completes to fix.
(in the process, another piece root (1-1-2) is directly put in the set of another head (1-1-1)！)
The length of bar shaped turning handle (1-1-5) meets can just the rotation in circular through hole (1-1-4).
When bar shaped turning handle (1-1-5) rotates, the both ends of bar shaped turning handle (1-1-5) are contacted with circular through hole (1-1-4) inner wall
It is mobile.(or the length of bar shaped turning handle (1-1-5) be slightly less than circular through hole (1-1-4) diameter)；Bar shaped turning handle (1-1-5)
Both ends are the arc being adapted with circular through hole (1-1-4) inner wall shape.
It is provided with torsional spring on lateral protruding shaft (1-1-4), under normal conditions, bar shaped turning handle (1-1-5) is kept under the effect of torsion spring
The length direction state vertical with the length direction of bar shaped gap (1-1-3) (i.e. B state in Fig. 4).
When locking, the height of bar shaped turning handle (1-1-5) protrudes from one distance K of outer wall of head (1-1-1), the in this way side of being
Just to the operation of bar shaped turning handle (1-1-5)
Above-mentioned HVDC TEST test clamp is in use, compress two insulated handles (2), so that two binding clip pieces (1-1)
It opens, binding clip piece (1-1) is clamped into connecting terminal (5), as shown in Fig. 2, binding clip piece inner tine can pierce through oxide layer；It adopts in folder face
It is designed with cambered surface, is more suitable for pressing from both sides cylindrical type connecting terminal；When needing to clamp the terminal of different models, binding clip piece can be replaced
(1-1), specific method are first to select different model, i.e., the head (1-1-1) of different radians, after selecting, by piece root (1-1-
2) length direction of the bar shaped turning handle (1-1-5) on is rotated to the length direction with bar shaped gap (1-1-3) in the same direction (such as Fig. 6 institute
The A condition shown！), then, by the open rearward end of the set of front end alignment head (1-1-1) of the piece root (1-1-2), the head (1-
It is 1-1) head (1-1-1) with bar shaped gap (1-1-3), then puts in piece root (1-1-2) in the set, so that bar shaped turns
Handle (1-1-5) is moved up along the length direction of bar shaped gap (1-1-3), i.e. upwardly direction is mobile in Fig. 6, until bar shaped
Turning handle (1-1-5) is put in completely in circular through hole (1-1-4), i.e. the front end of bar shaped turning handle (1-1-5) contacts circular through hole (1-1-
4) along inner wall on, then bar shaped turning handle (1-1-5) is rotated, until the length direction of bar shaped turning handle (1-1-5) and bar shaped slit
The length of mouth (1-1-3) is vertical (position as shown in Figure 4), completes to fix, in addition, there are also a kind of modes, as bar shaped turning handle (1-
Length direction 1-5) rotate to it is in the same direction with the length direction of bar shaped gap (1-1-3) when, torsional spring on lateral protruding shaft (1-1-4)
By energy storage under the action of rotation, the torsion trend of a revolution is generated, compressed spring is similar to, as bar shaped turning handle (1-
After 1-5) putting in completely in circular through hole (1-1-4), unclamp bar shaped turning handle (1-1-5), under the action of the reset force of torsional spring, item
Shape turning handle (1-1-5) is twisted back the length direction state vertical with the length of bar shaped gap (1-1-3), (B as shown in Figure 4
Position), any mode no matter is used, bar shaped turning handle (1-1-5) makes head (1-1-1) and piece root (1-1-2) to complete to fix,
Replacement is completed, and in the process, another piece root (1-1-2), which is directly taken advantage of a situation, to be put in the set of another head (1-1-1).
And when dismantling, then bar shaped turning handle (1-1-5) is gone back to bar shaped gap (1-1-3) in the same direction again, is then log out piece root (1-1-2)
?.
Claims (10)
1. a kind of HVDC TEST test clamp, it is characterised in that: the test clamp includes binding clip (1) and insulated handle (2)；
Binding clip (1) forms the nippers shape of X-shaped by main shaft (3) connection insulated handle (2), is controlled by control insulated handle (2)
The opening and clamping of binding clip (1).
2. HVDC TEST test clamp according to claim 1, it is characterised in that: binding clip (1) is mutually to open
The structure that the two binding clip pieces (1-1) closed are constituted, insulated handle (2) is the structure that the handle that can be mutually opened and closed by two is constituted.
3. HVDC TEST test clamp according to claim 1 or 2, it is characterised in that: main shaft is cased with torsion on (3)
Spring, torsional spring remain the power for clamping binding clip (1).
4. HVDC TEST test clamp according to claim 2, it is characterised in that: the root of two binding clip pieces (1-1)
It is connected between portion back-moving spring (4), back-moving spring (4) remains the power for inwardly tensing two binding clip pieces (1-1).
5. HVDC TEST test clamp according to claim 2, it is characterised in that: binding clip piece (1-1) is can be with quilt
The structure of the adaptable arc of clamping connection line terminals (5) outer wall, the arc-shaped notch of two binding clip pieces (1-1) is opposite, so that two pincers
Head piece (1-1) can clamp bolt (5) in the two sides of bolt (5).
6. HVDC TEST test clamp according to claim 5, it is characterised in that: in the arc of binding clip piece (1-1)
For piercing through the pointed tooth structure (1-2) of oxide layer at the test point pressed from both sides when being provided with use in recess.
7. HVDC TEST test clamp according to claim 6, it is characterised in that: binding clip piece (1-1) is can be more
The structure changed, binding clip piece (1-1) include head (1-1-1) and piece root (1-1-2), the front end of head (1-1-1) be can with pressed from both sides
The structure of the adaptable arc of connecting terminal (5) outer wall, the rear end of head (1-1-1) is that can cover in piece root (1-1-2) outside
Set, two head (1-1-1) are nested on corresponding root (1-1-2) by respective set, wherein a head
The lateral wall of the set of (1-1-1) is provided with bar shaped gap (1-1-3), and the lower end of bar shaped gap (1-1-3) extends to the lower end of set
Opening is provided with circular through hole (1-1-4) as entrance, the upper end of bar shaped gap (1-1-3), circular through hole (1-1-4) and item
Shape gap (1-1-3) connection；
The front end outer side wall of one of piece root (1-1-2) is provided with the lateral protruding shaft (1- vertical with the side wall of piece root (1-1-2)
1-4), bar shaped turning handle (1-1-5) is provided on lateral protruding shaft (1-1-4)；The length direction of bar shaped turning handle (1-1-5) and transverse direction are convex
Axis (1-1-4) it is axially vertical, lateral protruding shaft (1-1-4) makes bar shaped turning handle (1-1- across the center of bar shaped turning handle (1-1-5)
5) it is arranged on lateral protruding shaft (1-1-4) and can be rotated with lateral protruding shaft (1-1-4) for axis；
The width (H) of bar shaped turning handle (1-1-5) and the width (L) of bar shaped gap (1-1-3) are adapted, i.e. bar shaped turning handle (1-1-
5) width, which meets, to be moved up and down in bar shaped gap (1-1-3)；
In use, the length direction of bar shaped turning handle (1-1-5) is rotated in the same direction with the length direction of bar shaped gap (1-1-3),
Then, by the front end of the piece root (1-1-2) to bar shaped gap (1-1-3) head (1-1-1) set open rearward end simultaneously
Piece root (1-1-2) is put in the set, is slitted so that bar shaped turning handle (1-1-5) enters bar shaped from the entrance of bar shaped gap (1-1-3)
Mouth (1-1-3) is simultaneously mobile along the length direction of bar shaped gap (1-1-3), until bar shaped turning handle (1-1-5) puts in circle completely
It is then that bar shaped turning handle (1-1-5) rotation is vertical with the length of bar shaped gap (1-1-3) to length direction in through-hole (1-1-4),
It completes to fix.
8. HVDC TEST test clamp according to claim 7, it is characterised in that: the length of bar shaped turning handle (1-1-5)
Degree meets can just the rotation in circular through hole (1-1-4).
9. HVDC TEST test clamp according to claim 8, it is characterised in that: bar shaped turning handle (1-1-5) rotation
When, the both ends of bar shaped turning handle (1-1-5) contact movement with circular through hole (1-1-4) inner wall.
10. HVDC TEST test clamp according to any one of claims of claim 7-10, it is characterised in that: laterally convex
It is provided with torsional spring on axis (1-1-4), under normal conditions, bar shaped turning handle (1-1-5) keeps length direction and bar shaped under the effect of torsion spring
The vertical state of the length direction of gap (1-1-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811067498.8A CN109142806B (en) | 2018-09-13 | 2018-09-13 | High-voltage direct-current test wire clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811067498.8A CN109142806B (en) | 2018-09-13 | 2018-09-13 | High-voltage direct-current test wire clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109142806A true CN109142806A (en) | 2019-01-04 |
| CN109142806B CN109142806B (en) | 2024-01-09 |
Family
ID=64825094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811067498.8A Active CN109142806B (en) | 2018-09-13 | 2018-09-13 | High-voltage direct-current test wire clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109142806B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112305276A (en) * | 2020-10-29 | 2021-02-02 | 国家电网有限公司 | Multifunctional high-voltage test wire for transformer test |
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|---|---|---|---|---|
| EP0164722A1 (en) * | 1984-06-11 | 1985-12-18 | Thomas Johnson Dr. Black | Automatic test system |
| JPH08264603A (en) * | 1995-01-24 | 1996-10-11 | Advantest Corp | Semiconductor tester |
| JPH10253702A (en) * | 1997-03-10 | 1998-09-25 | Toshiba Corp | High-frequency ic measuring jig |
| JP2007017322A (en) * | 2005-07-08 | 2007-01-25 | Shinx Ltd | Clamp apparatus of ic test-piece |
| US20080265919A1 (en) * | 2007-04-02 | 2008-10-30 | Izadian Jamal S | Scalable wideband probes, fixtures, and sockets for high speed ic testing and interconnects |
| CN203561650U (en) * | 2013-10-22 | 2014-04-23 | 国家电网公司 | Testing clamp preventing contact of measurement terminals |
| CN107589281A (en) * | 2017-10-31 | 2018-01-16 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of new multi-purpose change of current becomes test clamp |
| CN209387688U (en) * | 2018-09-13 | 2019-09-13 | 国家电网有限公司 | HVDC TEST test clamp |
-
2018
- 2018-09-13 CN CN201811067498.8A patent/CN109142806B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0164722A1 (en) * | 1984-06-11 | 1985-12-18 | Thomas Johnson Dr. Black | Automatic test system |
| JPH08264603A (en) * | 1995-01-24 | 1996-10-11 | Advantest Corp | Semiconductor tester |
| JPH10253702A (en) * | 1997-03-10 | 1998-09-25 | Toshiba Corp | High-frequency ic measuring jig |
| JP2007017322A (en) * | 2005-07-08 | 2007-01-25 | Shinx Ltd | Clamp apparatus of ic test-piece |
| US20080265919A1 (en) * | 2007-04-02 | 2008-10-30 | Izadian Jamal S | Scalable wideband probes, fixtures, and sockets for high speed ic testing and interconnects |
| CN203561650U (en) * | 2013-10-22 | 2014-04-23 | 国家电网公司 | Testing clamp preventing contact of measurement terminals |
| CN107589281A (en) * | 2017-10-31 | 2018-01-16 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of new multi-purpose change of current becomes test clamp |
| CN209387688U (en) * | 2018-09-13 | 2019-09-13 | 国家电网有限公司 | HVDC TEST test clamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112305276A (en) * | 2020-10-29 | 2021-02-02 | 国家电网有限公司 | Multifunctional high-voltage test wire for transformer test |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109142806B (en) | 2024-01-09 |
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