CN205982558U - Direct current traction power supply system's circuit breaker short circuit test device - Google Patents
Direct current traction power supply system's circuit breaker short circuit test device Download PDFInfo
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- CN205982558U CN205982558U CN201620946774.8U CN201620946774U CN205982558U CN 205982558 U CN205982558 U CN 205982558U CN 201620946774 U CN201620946774 U CN 201620946774U CN 205982558 U CN205982558 U CN 205982558U
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- circuit breaker
- measurement amplifier
- circuit
- chopper
- test device
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- 238000012360 testing method Methods 0.000 title claims abstract description 41
- 238000005259 measurement Methods 0.000 claims abstract description 28
- 238000009413 insulation Methods 0.000 claims description 8
- 230000005405 multipole Effects 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000011835 investigation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
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Abstract
The utility model discloses a direct current traction power supply system's circuit breaker short circuit test device, including test circuit, special dolly and remote control box. Test circuit sets up on special dolly, and test circuit includes circuit breaker, shunt, DC power supply, current measurement amplifier, voltage measurement amplifier and oscilloscope. DC power supply just, between the negative pole tandem breaker and shunt in proper order, circuit breaker both ends voltage signal is gathered to the input of voltage measurement amplifier, oscilloscope's voltage signal receiving terminal is connected to its output, the flow through current signal of shunt of the input collection of current measurement amplifier, oscilloscope's electric current signal reception end is connected to its output, the control end of circuit breaker is connected to the remote control box for long -rangely artificially carry out branch, closing operation to the circuit breaker. The utility model discloses carry out short -circuit test to the circuit breaker, set for the trouble and the protection of circuit breaker and carry out in time the investigation with perfect, the fail safe nature of improvement system.
Description
Technical field
This utility model belongs to electrical part technical field of measurement and test, particularly to a kind of open circuit of DC traction power-supply system
Device short-circuit test device.
Background technology
At present, all adopt unidirectional current in a lot of urban track traffics as traction power, direct-current short circuit fault easily occurs, such as
Fruit system protection device, such as chopper are it is impossible to enough carry out quick protection act when there is direct-current short circuit, then will be to people
Body property brings huge potential safety hazard.
For these reasons, DC traction system complete install, debugging after it is necessary to direct current quick breaker cabinet is done into
The reliability certification of one step, selects a certain traction substation on subway line to carry out direct-current short circuit test.
Utility model content
In order to solve the technical problem that above-mentioned background technology proposes, this utility model aims to provide a kind of direct-current traction power supply
The circuit breaker short circuit test device of system, carries out short-circuit test to chopper, and the fault to chopper and protection are set for
Investigation and perfect, the security reliability of raising DC traction power-supply system in time.
In order to realize above-mentioned technical purpose, the technical solution of the utility model is：
A kind of circuit breaker short circuit test device of DC traction power-supply system, including test circuit, special cart and long-range
Control box, described test circuit is arranged on special cart, and test circuit includes chopper, diverter, DC source, electric current survey
Amount amplifier, voltage measurement amplifier and oscillograph, are sequentially connected in series chopper and shunting between the positive and negative electrode of described DC source
Device, the input collection chopper both end voltage signal of described voltage measurement amplifier, the outfan of voltage measurement amplifier is even
Connect oscillographic voltage signal receiving terminal, the input collection of described current measurement amplifier flows through the current signal of diverter,
The outfan of current measurement amplifier connects oscillographic current signal receiving terminal, and described remote control box connects the control of chopper
End processed, for remotely artificially carrying out to chopper point, closing operation.
Based on the preferred version of technique scheme, described chopper is arranged on special cart by insulation board.
Based on the preferred version of technique scheme, described current measurement amplifier and voltage measurement amplifier are all by absolutely
Listrium is arranged on special cart.
Based on the preferred version of technique scheme, described test circuit enters the biography of horizontal electrical signal using Shielded Twisted Pair
Defeated.
Based on the preferred version of technique scheme, described chopper adopts multipole circuit breaker.
Based on the preferred version of technique scheme, in parallel by copper bar between each pole of described multipole circuit breaker, and each pole
Between insulation distance meet standard security distance.
The beneficial effect brought using technique scheme：
（1）This utility model is by being simulated direct-current short circuit test to chopper, thus detecting that chopper whether can be
Occur quickly to carry out protection act, thus improving DC traction power-supply system safety and reliability during direct-current short circuit fault；
（2）This utility model carries out voltage during short-circuit test, current signal by gathering chopper, and by voltage, electricity
Stream signal be shown on oscillograph, be used for carrying out data analysiss, thus judge chopper protection set whether appropriate；
（3）This utility model is provided with remote control box, can with manual control chopper point, close a floodgate it is ensured that short circuit
The safety of process of the test.
Brief description
Fig. 1 is circuit theory diagrams of the present utility model.
Specific embodiment
Below with reference to accompanying drawing, the technical solution of the utility model is described in detail.
As shown in figure 1, a kind of circuit breaker short circuit test device of DC traction power-supply system, it is arranged on dc switch at ordinary times
In cabinet, when performing a test, test device is moved to testing position.Described circuit breaker short circuit test device include test circuit,
Special cart and remote control box, described test circuit is arranged on special cart, test circuit include chopper, diverter,
DC source, current measurement amplifier, voltage measurement amplifier and oscillograph, between the positive and negative electrode of described DC source successively
Series trip device and diverter, the input collection chopper both end voltage signal of described voltage measurement amplifier, voltage measurement
The outfan of amplifier connects oscillographic voltage signal receiving terminal, and the input collection of described current measurement amplifier flows through point
The current signal of stream device, the outfan of current measurement amplifier connects oscillographic current signal receiving terminal, described remotely control
Box connects the control end of chopper, for remotely artificially carrying out to chopper point, closing operation.
In the present embodiment, chopper is installed on special cart by insulation board, prevents electric current by dolly short circuit, shadow
Ring examination short circuit to test.
In the present embodiment, current measurement amplifier and voltage measurement amplifier are all arranged on special cart by insulation board
On.
In the present embodiment, test circuit enters the transmission of horizontal electrical signal it is ensured that transmission precision using Shielded Twisted Pair.
In the present embodiment, chopper adopts multipole circuit breaker, in parallel by copper bar between each pole of multipole circuit breaker, and
Insulation distance between each pole meets standard security distance.
Above example only illustrates technological thought of the present utility model it is impossible to limit protection model of the present utility model with this
Enclose, every according to the utility model proposes technological thought, any change done on the basis of technical scheme, each fall within this reality
Within the scope of novel protected.
Claims (6)
1. a kind of DC traction power-supply system circuit breaker short circuit test device it is characterised in that：Described circuit breaker short circuit test
Device includes test circuit, special cart and remote control box, and described test circuit is arranged on special cart, test circuit bag
Include chopper, diverter, DC source, current measurement amplifier, voltage measurement amplifier and oscillograph, described DC source
It is sequentially connected in series chopper and diverter, the input collection chopper two ends electricity of described voltage measurement amplifier between positive and negative electrode
Pressure signal, the outfan of voltage measurement amplifier connects oscillographic voltage signal receiving terminal, described current measurement amplifier
Input collection flows through the current signal of diverter, and the outfan of current measurement amplifier connects oscillographic current signal and receives
End, described remote control box connects the control end of chopper, for remotely artificially carrying out to chopper point, closing operation.
2. according to claim 1 a kind of DC traction power-supply system circuit breaker short circuit test device it is characterised in that：Institute
State chopper to be arranged on special cart by insulation board.
3. according to claim 1 a kind of DC traction power-supply system circuit breaker short circuit test device it is characterised in that：Institute
State current measurement amplifier and voltage measurement amplifier is all arranged on special cart by insulation board.
4. according to claim 1 a kind of DC traction power-supply system circuit breaker short circuit test device it is characterised in that：Institute
State the transmission that test circuit enters horizontal electrical signal using Shielded Twisted Pair.
5. according to claim 1 a kind of DC traction power-supply system circuit breaker short circuit test device it is characterised in that：Institute
State chopper and adopt multipole circuit breaker.
6. according to claim 5 a kind of DC traction power-supply system circuit breaker short circuit test device it is characterised in that：Institute
State in parallel by copper bar between each pole of multipole circuit breaker, and the insulation distance between each pole meets standard security distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620946774.8U CN205982558U (en) | 2016-08-25 | 2016-08-25 | Direct current traction power supply system's circuit breaker short circuit test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620946774.8U CN205982558U (en) | 2016-08-25 | 2016-08-25 | Direct current traction power supply system's circuit breaker short circuit test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205982558U true CN205982558U (en) | 2017-02-22 |
Family
ID=58036346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620946774.8U Active CN205982558U (en) | 2016-08-25 | 2016-08-25 | Direct current traction power supply system's circuit breaker short circuit test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205982558U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154152A (en) * | 2016-08-25 | 2016-11-23 | 镇江大全赛雪龙牵引电气有限公司 | A kind of circuit breaker short circuit test device of DC traction power-supply system |
-
2016
- 2016-08-25 CN CN201620946774.8U patent/CN205982558U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154152A (en) * | 2016-08-25 | 2016-11-23 | 镇江大全赛雪龙牵引电气有限公司 | A kind of circuit breaker short circuit test device of DC traction power-supply system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |