CN209624760U - A kind of current transformer angular difference test fixture - Google Patents
A kind of current transformer angular difference test fixture Download PDFInfo
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- CN209624760U CN209624760U CN201821668974.7U CN201821668974U CN209624760U CN 209624760 U CN209624760 U CN 209624760U CN 201821668974 U CN201821668974 U CN 201821668974U CN 209624760 U CN209624760 U CN 209624760U
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- current transformer
- hole
- angular difference
- test fixture
- difference test
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Abstract
The utility model discloses a kind of current transformer angular difference test fixtures of current transformer the field of test technology, pin line time-consuming longer technical problem when aiming to solve the problem that current transformer test, the tooling includes the station made of isolation material, the station is equipped with connecting terminal, and four connecting terminals are rectangular to be arranged on the station.The utility model can once complete the connection line operation of four pins of current transformer, realize the rapid survey of current transformer angular difference, can substantially reduce workload.
Description
Technical field
The utility model relates to current transformer the field of test technology, and in particular to a kind of current transformer angular difference test work
Dress.
Background technique
Current transformer principle is according to electromagnetic induction principle.Current transformer is the iron core and winding group by being closed
At.Its first winding the number of turns is seldom, goes here and there in the route for the electric current for needing to measure, therefore it often has whole electric currents of route
Flow through, secondary winding turn ratio is more, be serially connected in measuring instrumentss and protective loop, current transformer at work, its 2 times
Circuit is closure, therefore the impedance very little of measuring instrumentss and protective loop series coil, the work shape of current transformer always
The close short circuit of state.
When in use, the primary of current transformer flanks primary equipment, secondary to flank measuring instrumentss or relay protection etc. two
Primary equipment high current is converted into low current supply measuring instrumentss or protective device etc. two by secondary device, current transformer in proportion
Secondary device uses.
Error of measurement method is generallyd use to the calibrating of current transformer in the prior art, the error of measurement method is by traditional current lifting device, mark
The check system of the compositions such as quasi- mutual inductor, mutual-inductor tester, specific test process are first with current lifting device (some Current Voltages
Generator) scene output high current is simulated, which flows through the primary side of standard mutual inductor Yu tested mutual inductor, then standard
The secondary side of mutual inductor and tested mutual inductor is respectively connected to the standard input terminal and tested input terminal of mutual-inductor tester, by mutual inductance
Device tester calculates the angular difference of tested mutual inductor and than difference.This method simple, intuitive is easy to trace to the source, but the identification method needs
It will be successively by two connecting terminals of four pins of current transformer and the primary current of current lifting device, the secondary current of tester
Two connecting terminals be separately connected, it is cumbersome, it is time-consuming longer.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of current transformer angular difference test fixtures, to solve electricity
Pin line time-consuming longer technical problem when current transformer is tested.
The technology employed by the present utility model is
Design a kind of current transformer angular difference test fixture, it is characterised in that: including the station made of isolation material,
The station is equipped with connecting terminal, and four connecting terminals are rectangular to be arranged on the station.
Preferably, the station includes rectangular-shaped upper mounting plate and bottom plate, and the upper mounting plate is equipped with four
A first through hole, the bottom plate are equipped with the second through-hole, and the first through hole and the second through-hole are coaxial, and the terminals
Son is fixedly installed in the first through hole and the second through-hole.
Preferably, the connecting terminal is electric jack.
Preferably, the connecting terminal is electric wiring terminal.
Preferably, the upper surface of the electric wiring terminal is not higher than the upper surface of the first through hole, the electric wiring terminal
Lower end surface is not higher than the lower surface of second through-hole.
Preferably, four edges of the upper mounting plate lower surface are respectively provided with a stabilizer blade.
Preferably, the upper mounting plate and bottom plate are rectangle.
Compared with prior art, the advantageous effects of the utility model are:
The utility model can once complete the connection line operation of four pins of current transformer, realize current transformer angular difference
Rapid survey, workload can be substantially reduced.
Detailed description of the invention
Fig. 1 is one of the structural schematic diagram of the utility model；
Fig. 2 is the second structural representation of the utility model；
Fig. 3 is the sectional view of the utility model；
Fig. 4 is the use state of the utility model with reference to figure；
1 is station, and 2 be electric jack, and 3 be stabilizer blade, and 4 be electric wiring terminal, and 5 be upper mounting plate, and 6 be bottom plate, and 7 be
One through-hole, 8 be the second through-hole, and 9 be current lifting device, and 10 be tester.
Specific embodiment
Illustrate specific embodiment of the present utility model with reference to the accompanying drawings and examples, but following embodiment only uses
It is described in detail the utility model, does not limit the scope of the utility model in any way.Involved in following embodiment
The devices such as unit module components, structure, mechanism are then unless otherwise instructed conventional commercial product.
Embodiment 1: as shown in Figure 1, a kind of current transformer angular difference test fixture, including station 1 and electric jack 2, behaviour
Make platform 1 to be made of isolation material, four edges of 1 lower surface of station are respectively provided with a stabilizer blade 3, and four electric jacks 2 are in square
Shaped formation is on station 1.
Embodiment 2: as shown in Figure 2 and Figure 3, a kind of current transformer angular difference test fixture, including be made of isolation material
Station 1 and electric wiring terminal 4, the upper mounting plate 5 and bottom plate 6 of the station 1 including oblong-shaped, on upper mounting plate 5
Equipped with first through hole 7, four first through hole 7 are rectangular to be arranged on upper mounting plate 5, and bottom plate 6 is equipped with the second through-hole
8, first through hole 7 and the second through-hole 8 are coaxial, and electric wiring terminal 4 is fixedly installed in first through hole 7 and the second through-hole 8, electrical connection
The upper surface of column 4 is not higher than the upper surface of first through hole 7, and the lower end surface of electric wiring terminal 4 is not higher than the lower surface of the second through-hole 8.
Four edges of 5 lower surface of upper mounting plate are respectively provided with a stabilizer blade 3.
The operate with method of above-mentioned test fixture is as follows:
It before carrying out the test of current transformer angular difference, needs to carry out operations described below: by two electric jacks 2 in 1 left side of station
Or the electricity consumption stream voltage generator that has by Kelvin's test cable and current lifting device 9(of the bottom of electric wiring terminal 4) two wiring
Terminal constitutes primary circuit, and electricity is tested by Kelvin in the bottom of two electric jacks 2 on 1 right side of station or electric wiring terminal 4
Two connecting terminals of cable and tester 10 constitute secondary circuit.
When carrying out the test of current transformer angular difference, hold the two sides of current transformer, by the P1 pin of current transformer and
Two electric jacks 2 or electric wiring terminal 4 in 1 left side of P2 pin alignment function platform, by the S1 pin and S2 pin pair of current transformer
Two electric jacks 2 or electric wiring terminal 4 on quasi- 1 right side of station, then press down on current transformer, can be on tester 10
See that angular difference tests structure, then extracts the current transformer, carry out the test of next current transformer.
Tester 10 is the miniature instrument transformer calibrating installation (HESE that Shenyang Zhong Chuan measuring technology Co., Ltd sells
Type).
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, this field
Other modifications or equivalent replacement that those of ordinary skill makes the technical solution of the utility model, it is practical without departing from this
The spirit and scope of new technique scheme should all cover in the scope of the claims of the utility model.
Claims (6)
1. a kind of current transformer angular difference test fixture, it is characterised in that: including the station made of isolation material, the behaviour
Make platform equipped with connecting terminal, four connecting terminals are rectangular to be arranged on the station；The station includes
Rectangular-shaped upper mounting plate and bottom plate is set on the upper mounting plate there are four first through hole, and the bottom plate is equipped with
Second through-hole, the first through hole and the second through-hole are coaxial, and the connecting terminal is fixedly installed in the first through hole and
In two through-holes.
2. current transformer angular difference test fixture according to claim 1, it is characterised in that: the connecting terminal is electric mortiser
Hole.
3. current transformer angular difference test fixture according to claim 1, it is characterised in that: the connecting terminal connects for electricity
Terminal.
4. current transformer angular difference test fixture according to claim 3, it is characterised in that: the upper end of the electric wiring terminal
Face is not higher than the upper surface of the first through hole, and the lower end surface of the electric wiring terminal is not higher than the lower surface of second through-hole.
5. current transformer angular difference test fixture according to claim 1, it is characterised in that: the upper mounting plate lower surface
Four edges be respectively provided with a stabilizer blade.
6. current transformer angular difference test fixture according to claim 1, it is characterised in that: the upper mounting plate and lower solid
Fixed board is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821668974.7U CN209624760U (en) | 2018-10-15 | 2018-10-15 | A kind of current transformer angular difference test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821668974.7U CN209624760U (en) | 2018-10-15 | 2018-10-15 | A kind of current transformer angular difference test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209624760U true CN209624760U (en) | 2019-11-12 |
Family
ID=68442239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821668974.7U Active CN209624760U (en) | 2018-10-15 | 2018-10-15 | A kind of current transformer angular difference test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209624760U (en) |
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2018
- 2018-10-15 CN CN201821668974.7U patent/CN209624760U/en active Active
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