CN217085197U - Circuit for rapidly detecting circuit breaker interval loop resistance and circuit breaker dynamic characteristic - Google Patents
Circuit for rapidly detecting circuit breaker interval loop resistance and circuit breaker dynamic characteristic Download PDFInfo
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- CN217085197U CN217085197U CN202220386183.5U CN202220386183U CN217085197U CN 217085197 U CN217085197 U CN 217085197U CN 202220386183 U CN202220386183 U CN 202220386183U CN 217085197 U CN217085197 U CN 217085197U
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- disconnecting link
- circuit breaker
- grounding
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Abstract
The utility model discloses a circuit of short-term test circuit breaker interval loop resistance and circuit breaker dynamic characteristic, include: the testing device comprises a 1# bus, a 2# bus, a bus side isolation disconnecting link, a breaker disconnecting link, a load side isolation disconnecting link, a grounding disconnecting link, a load side quick grounding disconnecting link, a soft insulated copper wire, a grounding disconnecting link tap detachable grounding copper bar, a grounding disconnecting link lead-out tap copper bar, a breaker loop resistance testing line, a breaker dynamic characteristic testing line, a breaker loop resistance tester and a breaker dynamic characteristic tester. The utility model discloses can realize that two experimental test wires articulate simultaneously, can carry out circuit breaker return circuit resistance and circuit breaker dynamic characteristic test respectively through the corresponding switch that switches over the increase.
Description
Technical Field
The utility model belongs to the technical field of electrical equipment detects, concretely relates to GIS high tension switchgear short-term test circuit breaker interval loop resistance and circuit breaker dynamic characteristic's circuit.
Background
The GIS high-voltage switch cabinet is applied to a high-voltage transmission loop, and according to the regulation of electric power equipment maintenance test regulations of a power grid company, the GIS high-voltage switch cabinet needs to periodically perform a GIS high-voltage switch cabinet loop resistance electrical test and a circuit breaker dynamic characteristic (on-off synchronization) electrical test, judges the working characteristic of the GIS high-voltage switch cabinet according to test data, and achieves equipment stateful maintenance. Two experiments of the conventional GIS high-voltage switch cabinet loop resistance electrical test and the circuit breaker dynamic characteristic electrical test respectively consume a lot of time, the two test lines of the electrical test are respectively and independently hung, the two experiments are respectively performed, and the work consumes a lot of time.
The GIS high-voltage switch cabinet is packaged in a split-phase mode by adopting SF6 air chambers, and each phase of bus to a load terminal is generally divided into a plurality of SF6 air chambers at intervals. A GIS high-voltage switch cabinet reserves a test tap for performing circuit breaker interval loop resistance electrical test and circuit breaker dynamic characteristic electrical test, and the tap is led out through a grounding disconnecting link to be grounded through a tap copper plate in a normal use process. The conventional circuit resistance electrical test and circuit breaker dynamic characteristic electrical test are respectively carried out by utilizing the leading-out taps, and test wires are respectively hung to carry out the circuit resistance electrical test and the circuit breaker dynamic characteristic electrical test, so that the whole test consumes a large amount of time.
Disclosure of Invention
Based on the not enough of above-mentioned prior art, the utility model provides a GIS high tension switchgear short-term test circuit breaker interval loop resistance and circuit breaker dynamic characteristic's circuit.
The utility model discloses a realize through following technical scheme: circuit of short-term test circuit breaker interval loop resistance and circuit breaker dynamic characteristic includes: the circuit breaker comprises a 1# bus, a 2# bus, a bus side isolation disconnecting link, a breaker disconnecting link, a load side isolation disconnecting link, a grounding disconnecting link, a load side quick grounding disconnecting link, a soft insulating copper wire, a grounding disconnecting link tap detachable grounding copper bar, a grounding disconnecting link leading-out tap copper bar, a circuit breaker loop resistance test line, a circuit breaker dynamic characteristic test line, a circuit breaker loop resistance tester and a circuit breaker dynamic characteristic tester; wherein the content of the first and second substances,
the bus side isolation disconnecting link comprises a first bus side isolation disconnecting link and a second bus side isolation disconnecting link, and the grounding disconnecting link comprises a first grounding disconnecting link and a second grounding disconnecting link; one end of the first bus side isolation disconnecting link is connected with the 1# bus, and the other end of the first bus side isolation disconnecting link is connected with the first grounding disconnecting link and the breaker disconnecting link; one end of the second bus side isolation disconnecting link is connected with the 2# bus, and the other end of the second bus side isolation disconnecting link is also connected with the first grounding disconnecting link and the breaker disconnecting link; the other end of the breaker disconnecting link is connected with the second grounding disconnecting link and the load side isolating disconnecting link, and the other end of the load side isolating disconnecting link is connected with the load side quick grounding disconnecting link and the transformer;
the other ends of the first grounding disconnecting link and the second grounding disconnecting link are respectively connected with a grounding disconnecting link leading-out tap copper bar and a detachable grounding copper bar for grounding disconnecting link taps; the two grounding disconnecting link leading-out tap copper bars are respectively connected with a soft insulated copper wire, a circuit breaker loop resistance test wire and a circuit breaker dynamic characteristic test wire; the soft insulated copper wire is grounded, and air switches are arranged on the soft insulated copper wire and the circuit breaker dynamic characteristic test wire; the two circuit breaker loop resistance test lines are connected with the circuit breaker loop resistance tester, and the two circuit breaker dynamic characteristic test lines are connected with the circuit breaker dynamic characteristic tester.
Preferably, the flexible insulated copper wire is connected with the tapping copper bar led out from the grounding disconnecting link through the electric power test crocodile clamp.
Preferably, the soft insulated copper wire is 6mm 2 Soft insulated copper wire with the insulation strength of 1 kV.
In the circuit of the utility model, the test wires of two tests can be simultaneously connected, and the circuit breaker loop resistance and the dynamic characteristic test of the circuit breaker can be respectively carried out by switching the increased corresponding switches; the utility model relates to a simply, labour saving and time saving.
Drawings
Fig. 1 is a circuit diagram of the utility model for rapidly detecting the resistance of the circuit breaker interval loop;
fig. 2 is the utility model discloses the circuit diagram of short-term test circuit breaker dynamic characteristic.
Detailed Description
Embodiments of the present invention will now be described with reference to the accompanying drawings. It will be appreciated by those skilled in the art that the following examples are illustrative of the invention only and should not be taken as limiting the scope of the invention. The specific techniques, connections, conditions, or the like, which are not specified in the examples, are performed according to the techniques, connections, conditions, or the like described in the literature in the art or according to the product specification. The materials, instruments or equipment are not indicated by manufacturers, and all the materials, instruments or equipment are conventional products which can be obtained by purchasing.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "disposed" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention is understood according to the specific situation.
As shown in fig. 1 and 2, the utility model provides a circuit of short-term test circuit breaker interval loop resistance and circuit breaker dynamic characteristic, include: the circuit breaker comprises a 1# bus, a 2# bus, a bus side isolation disconnecting link, a breaker disconnecting link, a load side isolation disconnecting link, a grounding disconnecting link, a load side quick grounding disconnecting link, a soft insulating copper wire, a grounding disconnecting link tap detachable grounding copper bar, a grounding disconnecting link leading-out tap copper bar, a circuit breaker loop resistance test line, a circuit breaker dynamic characteristic test line, a circuit breaker loop resistance tester and a circuit breaker dynamic characteristic tester; wherein, the first and the second end of the pipe are connected with each other,
the bus side isolation disconnecting link comprises a first bus side isolation disconnecting link Q1 and a second bus side isolation disconnecting link Q2, and the grounding disconnecting link comprises a first grounding disconnecting link Q3 and a second grounding disconnecting link Q5; one end of a first bus side isolation disconnecting link Q1 is connected with a 1# bus, and the other end of the first bus side isolation disconnecting link Q1 is connected with a first grounding disconnecting link Q3 and a breaker disconnecting link Q4; one end of a second bus side isolation disconnecting link Q2 is connected with the 2# bus, and the other end of the second bus side isolation disconnecting link Q2 is also connected with a first grounding disconnecting link Q3 and a breaker disconnecting link Q4; the other end of the breaker disconnecting link Q4 is connected with a second grounding disconnecting link Q5 and a load side isolation disconnecting link Q6, and the other end of the load side isolation disconnecting link Q6 is connected with a load side quick grounding disconnecting link Q7 and a transformer;
the other ends of the first grounding disconnecting link Q3 and the second grounding disconnecting link Q5 are respectively connected with a grounding disconnecting link leading-out tap copper bar 3 and a detachable grounding copper bar 2 of a grounding disconnecting link tap; the two grounding disconnecting link leading-out tap copper bars 3 are respectively connected with a soft insulated copper wire 1, a circuit breaker loop resistance test wire 4 and a circuit breaker dynamic characteristic test wire 5; the soft insulated copper wire 1 is 6mm 2 A soft insulated copper wire with the insulation strength of 1 kV; the soft insulating copper wire 1 is grounded, and air switches are arranged on the soft insulating copper wire 1 and the circuit breaker dynamic characteristic test wire 5; the method specifically comprises the following steps: a first air switch Q8 and a third air switch Q10 are respectively arranged on the soft insulated copper wire 1 and the breaker dynamic characteristic test wire 5 which are close to the first grounding disconnecting link Q3, and a second air switch Q9 and a fourth air switch Q11 are respectively arranged on the soft insulated copper wire 1 and the breaker dynamic characteristic test wire 5 which are close to the second grounding disconnecting link Q5; the two circuit breaker loop resistance test lines are connected with a circuit breaker loop resistance tester 6, and the two circuit breaker dynamic characteristic test lines 5 are connected with a circuit breaker dynamic characteristic tester 7. The utility model discloses an air switch is 100A air switch.
Further optimize the scheme, the copper bar 3 of taking a percentage is drawn forth through electric power test crocodile clamp 8 and earthing knife-switch to flexible insulation copper line 1 and is connected.
The following further explains the use of the present invention:
1) before the test starts, the GIS high-voltage switch cabinet bus side isolation disconnecting link (namely, a first bus side isolation disconnecting link Q1 and a second bus side isolation disconnecting link Q2) is switched off, the GIS high-voltage switch cabinet breaker disconnecting link Q4 is switched on, the GIS high-voltage switch cabinet load side isolation disconnecting link Q6 is switched off, and the GIS high-voltage switch cabinet grounding disconnecting link (namely, a first grounding disconnecting link Q3 and a second grounding disconnecting link Q5) is switched on;
2) the first air switch Q8 and the second air switch Q9 are switched on, and the flexible insulated copper wire 1 is fixed on the grounding switch leading-out tap copper bar 3 through an electric power test crocodile clamp 8; the middle of each of the two circuit breaker dynamic characteristic test lines 5 is correspondingly connected with a third air switch Q10 and a fourth air switch Q11 in series;
3) sequentially checking a circuit breaker loop resistance test line 4 and a circuit breaker dynamic characteristic test line 5;
4) a grounding copper plate 2 can be dismounted by tapping a grounding disconnecting link (a first grounding disconnecting link Q3 and a second grounding disconnecting link Q5) of the GIS high-voltage switch cabinet;
5) the first air switch Q8, the second air switch Q9, the third air switch Q10 and the fourth air switch Q11 are switched off, the grounding knife switch of the GIS high-voltage switch cabinet (the first grounding knife switch Q3 and the second grounding knife switch Q5) is switched on, the breaker knife switch Q4 of the GIS high-voltage switch cabinet is switched on, and the interval loop resistance test of the breaker of the GIS high-voltage switch cabinet is carried out; after the test is finished, the circuit breaker loop resistance tester is closed, the circuit breaker loop resistance test line 4 is not required to be removed, the existing state of each switch of the GIS high-voltage switch cabinet is kept, and the GIS high-voltage switch cabinet is not required to be restored to the maintenance state, as shown in figure 1;
6) the first air switch Q8 is switched off, the second air switch Q9, the third air switch Q10 and the fourth air switch Q11 are switched on, and a GIS high-voltage switch cabinet breaker dynamic characteristic test is carried out, as shown in FIG. 2;
7) after the test is finished, after the first air switch Q8 and the second air switch Q9 are switched on, all test lines are removed in a unified mode, and the GIS high-voltage switch cabinet is restored to the maintenance state.
The above, only be the preferred embodiment of the present invention, not used for limiting the present invention, all the technical matters of the present invention should be included in the protection scope of the technical solution of the present invention for any slight modification, equivalent replacement and improvement made to the above embodiment.
Claims (3)
1. Circuit of short-term test circuit breaker interval loop resistance and circuit breaker dynamic characteristic, its characterized in that includes: the circuit breaker comprises a 1# bus, a 2# bus, a bus side isolation disconnecting link, a breaker disconnecting link, a load side isolation disconnecting link, a grounding disconnecting link, a load side quick grounding disconnecting link, a soft insulating copper wire, a grounding disconnecting link tap detachable grounding copper bar, a grounding disconnecting link leading-out tap copper bar, a circuit breaker loop resistance test line, a circuit breaker dynamic characteristic test line, a circuit breaker loop resistance tester and a circuit breaker dynamic characteristic tester; wherein the content of the first and second substances,
the bus side isolation disconnecting link comprises a first bus side isolation disconnecting link (Q1) and a second bus side isolation disconnecting link (Q2), and the grounding disconnecting link comprises a first grounding disconnecting link (Q3) and a second grounding disconnecting link (Q5); one end of a first bus side isolation disconnecting link (Q1) is connected with the 1# bus, and the other end of the first bus side isolation disconnecting link is connected with a first grounding disconnecting link (Q3) and a breaker disconnecting link (Q4); one end of a second bus side isolation disconnecting link (Q2) is connected with the 2# bus, and the other end of the second bus side isolation disconnecting link is also connected with a first grounding disconnecting link (Q3) and a breaker disconnecting link (Q4); the other end of the breaker disconnecting link (Q4) is connected to a second grounding disconnecting link (Q5) and a load side isolation disconnecting link (Q6), and the other end of the load side isolation disconnecting link (Q6) is connected to a load side fast grounding disconnecting link (Q7) and a transformer;
the other ends of the first grounding disconnecting link (Q3) and the second grounding disconnecting link (Q5) are respectively connected with a grounding disconnecting link leading-out tap copper bar (3) and a grounding copper bar (2) with detachable grounding disconnecting link taps; the two grounding disconnecting link leading-out tap copper bars (3) are respectively connected with a soft insulating copper wire (1), a circuit breaker loop resistance test wire (4) and a circuit breaker dynamic characteristic test wire (5); the flexible insulation copper wire (1) is grounded, and air switches are arranged on the flexible insulation copper wire (1) and the circuit breaker dynamic characteristic test wire (5); two circuit breaker loop resistance test wires are connected with circuit breaker loop resistance tester (6), and two circuit breaker dynamic characteristic test wires (5) are connected with circuit breaker dynamic characteristic tester (7).
2. The circuit for rapidly detecting the interval loop resistance and the dynamic characteristic of the circuit breaker as claimed in claim 1, wherein: the flexible insulation copper wire (1) is connected with the grounding switch leading-out tap copper bar (3) through a power test crocodile clamp (8).
3. The circuit for rapidly detecting the interval loop resistance and the dynamic characteristic of the circuit breaker as claimed in claim 1, wherein: the soft insulated copper wire (1) is 6mm 2 Soft insulated copper wire with the insulation strength of 1 kV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220386183.5U CN217085197U (en) | 2022-02-24 | 2022-02-24 | Circuit for rapidly detecting circuit breaker interval loop resistance and circuit breaker dynamic characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220386183.5U CN217085197U (en) | 2022-02-24 | 2022-02-24 | Circuit for rapidly detecting circuit breaker interval loop resistance and circuit breaker dynamic characteristic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217085197U true CN217085197U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220386183.5U Active CN217085197U (en) | 2022-02-24 | 2022-02-24 | Circuit for rapidly detecting circuit breaker interval loop resistance and circuit breaker dynamic characteristic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217085197U (en) |
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2022
- 2022-02-24 CN CN202220386183.5U patent/CN217085197U/en active Active
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