CN208156160U - A kind of high-voltage switch gear integrated test system of two-terminal-grounding - Google Patents
A kind of high-voltage switch gear integrated test system of two-terminal-grounding Download PDFInfo
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- CN208156160U CN208156160U CN201820799467.0U CN201820799467U CN208156160U CN 208156160 U CN208156160 U CN 208156160U CN 201820799467 U CN201820799467 U CN 201820799467U CN 208156160 U CN208156160 U CN 208156160U
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- 238000012360 testing method Methods 0.000 title claims abstract description 22
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The utility model discloses a kind of high-voltage switch gear integrated test systems of two-terminal-grounding, including comprehensive high-voltage switch tester, current sensor and special constant-current source, the comprehensive high-voltage switch tester has current sensor interface, high-voltage switch gear fracture interface and constant-current source control interface, the constant-current source control interface connects special constant-current source, the current sensor connects current sensor interface, two fractures of high-voltage switch gear connect high-voltage switch gear fracture interface, two fractures of high-voltage switch gear are grounded respectively, the anode in the special constant-current source, current sensor, high-voltage switch gear and contact resistance are sequentially connected；The both ends of ground resistance connect the anode and cathode in special constant-current source respectively, and the resistance value of ground resistance is much larger than contact resistance.The utility model can avoid the unstable of test data under high electromagnetic interference state, greatly improve test accuracy and tester's safety.
Description
Technical field
The utility model relates to technical field of electric equipment, the high-voltage switch gear integration test system of especially a kind of two-terminal-grounding
System.
Background technique
High-voltage switch gear, also referred to as high-voltage circuitbreaker, are a kind of protective devices of high-voltage electric power system, it can not only cut off
No-load current and load current in high-tension circuit, and also have the function of protective relaying device when system jam.
High voltage switch tester is the equipment for being exclusively used in testing high-voltage switch gear, can detecte the spirit of high-voltage switch gear
The indices such as sensitivity, resistance to pressure can measure the high-voltage switch gear of multiple voltage.The height of 110KV or more hyperbaric environment is pressed off
The measurement of pass, traditional test method have to be off the ground connection of one end, are in high-voltage switch gear under strong electrical field sense state, forceful electric power
Interference be possible to influence test data stabilization, cause test result not accurate enough and for personnel and equipment safety quite not
Benefit.Therefore, necessary that a kind of new-type measurement method is provided.
Utility model content
The utility model provides a kind of high-voltage switch gear integrated test system of two-terminal-grounding, avoids testing number under high pressure conditions
According to it is unstable, promote test data accuracy and tester's safety.
A kind of high-voltage switch gear integrated test system of two-terminal-grounding, including comprehensive high-voltage switch tester, current sensor
With special constant-current source, the comprehensive high-voltage switch tester has current sensor interface, high-voltage switch gear fracture interface and constant current
Source control interface, the constant-current source control interface connect special constant-current source, and the current sensor connects current sensor interface, high pressure
Two fractures of switch connect high-voltage switch gear fracture interface, and two fractures of high-voltage switch gear are grounded respectively, the special constant-current source
Anode, current sensor, high-voltage switch gear and contact resistance be sequentially connected；The both ends of ground resistance connect special constant-current source respectively
Anode and cathode, and the resistance value of ground resistance is much larger than contact resistance.
Preferably, the divide-shut brake sensor whether to close a floodgate for detecting high-voltage switch gear is fixed on the high-voltage switch gear, point
Combined floodgate sensor is connected with comprehensive high-voltage switch tester.
Preferably, the high-voltage switch gear has exposed moving contact, and the moving contact is moved with the divide-shut brake of high-voltage switch gear
It is dynamic.
Preferably, the moving contact is stretched out or is shunk with the divide-shut brake straight line of high-voltage switch gear, and the divide-shut brake sensor is
Rectilinear transducer.
Preferably, pedestal is fixed on the high-voltage switch gear, connects gimbals on the pedestal, the gimbals with
Rectilinear transducer is connected.
In the utility model, the double-fracture of high-voltage switch gear is grounded, if high-voltage switch gear is gate-dividing state, connects constant current
Source, because of high-voltage switch gear access failure, all electric currents all pass through ground resistance, and current sensor is detected as zero, and high-voltage switch gear is comprehensive
It closes tester and determines that high-voltage switch gear state is gate-dividing state；When high-voltage switch gear closes a floodgate, because ground resistance is much larger than contact resistance, stream
The electric current of ground resistance is significantly larger than to the electric current of contact resistance, so electric current almost all is by contact resistance, at this moment electric current
Sensor detects current signal, and comprehensive high-voltage switch tester thinks that high-voltage switch gear has closed a floodgate.This test macro, can be with
Guarantee that comprehensive high-voltage switch tester is not influenced the detection of high-voltage switch gear by hyperbaric environment, so that test data is more stable
And it is accurate and safer to tester.
Detailed description of the invention
Fig. 1 is a kind of panel construction schematic diagram of the comprehensive high-voltage switch tester of embodiment of the utility model；
Fig. 2 is a kind of structural representation of the high-voltage switch gear integrated test system of the two-terminal-grounding of embodiment of the utility model
Figure；
Fig. 3 is a kind of schematic illustration of embodiment of the utility model；
Fig. 4 is a kind of structural schematic diagram of the rectilinear transducer of embodiment of the utility model.
Specific embodiment
The utility model is described in further detail below by specific embodiment combination attached drawing.
Before the high-voltage switch gear integrated test system to the utility model is illustrated, it is necessary to comprehensive to high-voltage switch gear to survey
Instrument is tried to carry out as described below：As shown in Figure 1, for a kind of common comprehensive high-voltage switch tester, which is
RKC308E, in the panel, two high-voltage switch gear fracture interfaces 11 are used to connect two fractures of high-voltage switch gear 2, and constant-current source control connects
Mouth 12 is used as control special constant-current source, to change the current value of special constant-current source output.External interface 13 can connect external equipment,
Shutting-brake control interface 14, common interface 15 and separating brake control interface 16 are used to control the divide-shut brake of high-voltage switch gear 2.Meanwhile panel
On also have display screen 17 and button 18, to provide man-machine interaction mode.Current sensor interface 19 is for connecting current sense
Device 3, to obtain current data.
The utility model embodiment provides a kind of high-voltage switch gear integrated test system of two-terminal-grounding, as shown in Fig. 2, including
Comprehensive high-voltage switch tester 1, current sensor 3 and high-voltage switch gear 2, as shown in Figure 1, the comprehensive high-voltage switch tester
1 has current sensor interface 19, high-voltage switch gear fracture interface 11 and constant-current source control interface 12, and high-voltage switch gear 2 is three-phase type
Structure has three groups of fractures, every group there are two fracture, switching between two fractures.The current sensor 3 connects current sense
Device interface 19, to obtain current value detected by current sensor 3, it is disconnected that two fractures of high-voltage switch gear 2 connect high-voltage switch gear
Mouth interface 11, two fractures of high-voltage switch gear 2 are also grounded respectively.
As shown in figure 3, the anode of the constant-current source, current sensor 3, high-voltage switch gear K and contact resistance R1 are sequentially connected.
The both ends of ground resistance R2 connect the anode and cathode of positive constant-current source respectively, then ground resistance R2 and contact resistance R1 is in and is connected in parallel
State.Wherein, the resistance value of ground resistance R2 is much larger than the resistance value of contact resistance R1, and specially R2 is greater than 100 times of R1.
In test, if high-voltage switch gear 2 is gate-dividing state, constant-current source is connected, because of 2 access failure of high-voltage switch gear, is owned
Electric current all pass through ground resistance R2, current sensor 3 is detected as zero, and comprehensive high-voltage switch tester 1 determines high-voltage switch gear 2
State is gate-dividing state.When the combined floodgate of high-voltage switch gear 2 flows to contact resistance R1's because ground resistance R2 is much larger than contact resistance R1
Electric current is significantly larger than the electric current of ground resistance R2, so electric current almost all is by contact resistance R1, at this moment current sensor 3 is examined
Current signal is measured, comprehensive high-voltage switch tester 1 thinks that high-voltage switch gear has closed a floodgate.This test macro, it is ensured that high
The comprehensive tester that compresses switch is not influenced the detection of high-voltage switch gear by hyperbaric environment, will not be influenced because of High Voltage magnetic environment
The judgement of lock whether is closed to high-voltage switch gear, so that test data is more stable and accurate.
In one embodiment, as shown in figure 4, being fixed on the high-voltage switch gear 2 for detecting whether high-voltage switch gear 2 closes
The divide-shut brake sensor of lock, the divide-shut brake sensor are connected with comprehensive high-voltage switch tester, further to judge that height presses off
Close 2 whether switching.
Specifically, there is the high-voltage switch gear 2 exposed moving contact to open since high-voltage switch gear 2 is mechanical switching
Feed motion has the change of the position of the switch, and the moving contact is moved with the divide-shut brake of high-voltage switch gear 2, and divide-shut brake sensor is logical
The movement for detecting this moving contact is crossed, to determine whether switching.
Further, moving contact straight line stretching or contraction with the divide-shut brake of high-voltage switch gear 2, does linear reciprocation fortune
Dynamic, the divide-shut brake sensor is rectilinear transducer, to detect the linear motion distance of high-voltage switch gear 2, and according to linear motion
Distance is to determine whether switching.
Further, it is fixed with pedestal on the high-voltage switch gear 2, gimbals is connected on the pedestal, it is described universal
Bracket is connected by connector with rectilinear transducer.Due to using gimbals, connector can rotate in any direction, thus
The labyrinth inside high-voltage switch gear 2 is adapted to, to facilitate installation.Pedestal may be configured as magnetic bases, so as to be adsorbed onto height
It compresses switch on 2, it is easy to disassemble.
The above content is combine specific embodiment further detailed description of the utility model, and it cannot be said that
The specific implementation of the utility model is only limited to these instructions.For the utility model person of an ordinary skill in the technical field
For, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made.
Claims (5)
1. a kind of high-voltage switch gear integrated test system of two-terminal-grounding, it is characterised in that：
Including comprehensive high-voltage switch tester, current sensor and special constant-current source, the comprehensive high-voltage switch tester has
Current sensor interface, high-voltage switch gear fracture interface and constant-current source control interface, the constant-current source control interface connect special constant-current
Source, the current sensor connect current sensor interface, and two fractures of high-voltage switch gear connect high-voltage switch gear fracture interface, high pressure
Two fractures of switch are grounded respectively, and anode, current sensor, high-voltage switch gear and the contact resistance in the special constant-current source are sequentially
It is connected；The both ends of ground resistance connect the anode and cathode in special constant-current source respectively, and the resistance value of ground resistance is much larger than contact electricity
Resistance.
2. system according to claim 1, it is characterised in that：
Be fixed with the divide-shut brake sensor whether to close a floodgate for detecting high-voltage switch gear on the high-voltage switch gear, divide-shut brake sensor with
Comprehensive high-voltage switch tester is connected.
3. system according to claim 2, it is characterised in that：
The high-voltage switch gear has exposed moving contact, and the moving contact is moved with the divide-shut brake of high-voltage switch gear.
4. system according to claim 3, it is characterised in that：
The moving contact is stretched out or is shunk with the divide-shut brake straight line of high-voltage switch gear, and the divide-shut brake sensor is rectilinear transducer.
5. system according to claim 4, it is characterised in that：
It is fixed with pedestal on the high-voltage switch gear, gimbals are connected on the pedestal, the gimbals and straight line sense
Device is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820799467.0U CN208156160U (en) | 2018-05-28 | 2018-05-28 | A kind of high-voltage switch gear integrated test system of two-terminal-grounding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820799467.0U CN208156160U (en) | 2018-05-28 | 2018-05-28 | A kind of high-voltage switch gear integrated test system of two-terminal-grounding |
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| Publication Number | Publication Date |
|---|---|
| CN208156160U true CN208156160U (en) | 2018-11-27 |
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| CN201820799467.0U Active CN208156160U (en) | 2018-05-28 | 2018-05-28 | A kind of high-voltage switch gear integrated test system of two-terminal-grounding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115096578A (en) * | 2022-08-25 | 2022-09-23 | 国网山西省电力公司临汾供电公司 | High-voltage switch mechanical characteristic comprehensive test device |
-
2018
- 2018-05-28 CN CN201820799467.0U patent/CN208156160U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115096578A (en) * | 2022-08-25 | 2022-09-23 | 国网山西省电力公司临汾供电公司 | High-voltage switch mechanical characteristic comprehensive test device |
| CN115096578B (en) * | 2022-08-25 | 2022-11-25 | 国网山西省电力公司临汾供电公司 | High-voltage switch mechanical characteristic comprehensive test device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A comprehensive testing system for high-voltage switches with both ends grounded Granted publication date: 20181127 Pledgee: China Postal Savings Bank Co.,Ltd. Zhuhai Xiangzhou Branch Pledgor: ZHUHAI RENEDA ELECTRIC POWER EQUIPMENT Co.,Ltd. Registration number: Y2024980008390 |