CN115892117A - Inlet current simulator device and pre-debugging method - Google Patents
Inlet current simulator device and pre-debugging method Download PDFInfo
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- CN115892117A CN115892117A CN202211348401.7A CN202211348401A CN115892117A CN 115892117 A CN115892117 A CN 115892117A CN 202211348401 A CN202211348401 A CN 202211348401A CN 115892117 A CN115892117 A CN 115892117A
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- 238000012360 testing method Methods 0.000 claims abstract description 106
- 238000002955 isolation Methods 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 238000004088 simulation Methods 0.000 claims description 9
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- 238000010586 diagram Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 5
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/02—Electric devices associated with track, e.g. rail contacts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/18—Railway track circuits
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- 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
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention discloses an inlet current simulator device and a pre-debugging method, comprising the following steps: the device comprises a test port, a first switch device, a second switch device, a first variable resistor, a second variable resistor, a matching box, an isolation box and an ammeter; the first switch device, the first variable resistor and the ammeter are electrically connected to form a first analog circuit; the second switch device, the second variable resistor, the matching box, the first variable resistor and the ammeter are electrically connected to form a second analog circuit; the second switch device, the first variable resistor, the isolation box and the ammeter are electrically connected to form a third analog circuit; when the first switch device and the second switch device are in a first connection state, the first analog circuit and the test port form a passage; when the first switch device and the second switch device are in a second connection state, the second analog circuit and the test port form a passage; when the first switching device and the second switching device are in the third connection state, the third analog circuit and the test port form a passage.
Description
Technical Field
The invention relates to the technical field of railway signals, in particular to an inlet current simulator device.
Background
With the continuous improvement of the running speed of railway trains in China, people put forward higher requirements on the running safety and comfort of the trains, and the trains run stably at high speed, so that not only highly reliable trains and high-quality lines are required, but also highly reliable and highly safe signal equipment is required to guide the running of the trains.
Along with the popularization of ZPW-2000 type equipment, the updating and the transformation of the coding equipment are particularly important in the existing line construction, the installation quality standard of the coding equipment is ensured, the running safety of a train in the installation process of the equipment is ensured, and the smooth operation of the coding equipment is ensured. Of these, the inlet current test is the most critical step. The existing coding equipment needs to be dismantled and newly-arranged coding equipment needs to be installed and connected during construction tests, the installation process needs a long time, an inlet current test is not a section, all sections on the whole train route are replaced simultaneously, and then the test is carried out. The existing line signal interlocking construction line switching test workload is very large, the inlet current adjustment cannot be synchronously carried out with other interlocking tests, the test can be carried out only by completing the debugging of other signal equipment, the line switching time is very much, the line switching time is generally completed within about 1 hour, the inlet current debugging fails, and even the whole construction line switching is influenced.
Disclosure of Invention
The application provides an entry current simulator device for the preliminary debugging of indoor and outdoor entry electric current of simulation, technical scheme as follows:
in a first aspect, an inlet current simulator apparatus, comprising:
the device comprises a test port, a first switching device, a second switching device, a first variable resistor, a second variable resistor, a matching box, an isolation box, a track transformer and an ammeter, wherein the test port is connected with the first switching device;
the first switch device, the first variable resistor and the ammeter are electrically connected to form a first simulation circuit for simulating an outdoor test inlet current circuit;
the second switch device, the second variable resistor, the matching box, the first variable resistor and the ammeter are electrically connected to form a second analog circuit which is used for simulating the indoor test of the four-wire coded input current circuit;
the second switch device, the first variable resistor, the isolation box and the ammeter are electrically connected to form a third analog circuit for simulating indoor testing of the two-wire coded input current circuit;
when the first switch device and the second switch device are in a first connection state, the first analog circuit and the test port form a passage;
when the first switch device and the second switch device are in a second connection state, the second analog circuit and the test port form a passage;
when the first switching device and the second switching device are in a third connection state, the third analog circuit and the test port form a passage.
Optionally, the first switch device includes a first selection switch and a second selection switch, and the first selection switch and the second selection switch both include a common contact, a first contact and a second contact; the second switch device comprises a third selection switch and a fourth selection switch, and the third selection switch and the fourth selection switch comprise a common contact, a first contact and a second contact; the first contact of the first selection switch is electrically connected with the common contact of the third selection switch, and the first contact of the second selection switch is electrically connected with the common contact of the fourth selection switch.
Optionally, the first analog circuit is formed by electrically connecting a second contact of the first selection switch, the first variable resistor, and the ammeter in series with a second contact of the second selection switch, and when the common contact of the first selection switch and the common contact of the second selection switch are both connected to the respective second contacts, the first switch device and the second switch device are in the first connection state.
Optionally, the second analog circuit is formed by connecting in series the first contact of the third selector switch, the second variable resistor, the matching box, the first variable resistor, and the ammeter, and then electrically connecting to the first contact of the fourth selector switch, and when the common contact of the first selector switch and the common contact of the second selector switch are both connected to their respective first contacts, and when the common contact of the third selector switch and the common contact of the fourth selector switch are both connected to their respective first contacts, the first switch device and the second switch device are in the second connection state.
Optionally, the third analog circuit is formed by connecting a second contact of the third selector switch, the first variable resistor, the isolation box, and the ammeter in series and then electrically connecting the second contact of the third selector switch and the second contact of the fourth selector switch, and when the common contact of the first selector switch and the common contact of the second selector switch are both connected to their respective first contacts, and when the common contact of the third selector switch and the common contact of the fourth selector switch are both connected to their respective second contacts, the first switch device and the second switch device are in a third connection state.
Optionally, the matching box and the isolation box each have 4 interfaces, which are a first interface, a second interface, a third interface, and a fourth interface.
Optionally, the connection mode of the matching box in the second circuit is as follows: the third interface is connected with the second variable resistor and the first contact of the third selector switch in series, the first interface is connected with the third interface after being connected with the first variable resistor and the ammeter in series, and the fourth interface is connected with the first contact of the fourth selector switch; the connection mode of the isolation box in the third circuit is as follows: the third interface is connected with a second contact of a fourth selector switch, the first interface is connected with the third interface after being connected with the first variable resistor and the ammeter in series, and the fourth interface is connected with the second contact of the fourth selector switch.
Optionally, the track transformer is electrically connected to the non-interface side of the isolation box after being connected in series with a fixed resistor.
Optionally, the device further comprises two circuit breakers, one ends of the two circuit breakers are respectively and independently electrically connected with the common contacts of the first selection switch and the second selection switch, and the other ends of the two circuit breakers are respectively connected with the 2 test ports.
Optionally, when the track section measured by the device is a power receiving end, the fixed resistor short-circuit connection is no longer connected in series with the track transformer on the non-interface side of the isolation box; when the track section measured by the device is a power transmission end, the fixed resistor and the track transformer are connected in series on the non-interface side of the isolation box.
Optionally, the first variable resistance simulates a track resistance, and the second variable resistance simulates a cable resistance.
In a second aspect, a method for pre-debugging an inlet current is applied to the simulator of claims 1 to 12, and the method includes:
when outdoor inlet current testing is carried out, the common contact of the first selection switch and the common contact of the second selection switch are both communicated with the respective second contacts, the first circuit is communicated, and after the resistance value of the first variable resistor is adjusted according to the length of the steel rail of the testing section, the inlet current testing is carried out outdoors;
when an indoor four-wire system coding current test is carried out, the common contact of the first selector switch and the common contact of the second selector switch are both communicated with respective first contacts, and the common contact of the third selector switch and the common contact of the fourth selector switch are both communicated with respective first contacts, the second circuit is communicated, and after the resistance values of the first variable resistor and the second variable resistor are respectively adjusted according to the length of a steel rail and the length of a cable in a test section, the four-wire system coding current test is carried out indoors;
when the indoor two-wire system coding current test is carried out, the common contact of the first selector switch and the common contact of the second selector switch are both communicated with the respective first contacts, and when the common contact of the third selector switch and the common contact of the fourth selector switch are both communicated with the respective second contacts, the third circuit is communicated, and after the first variable resistance value is adjusted according to the length of the steel rail of the test section, the two-wire system coding inlet current test is carried out indoors.
The beneficial effect that the scheme that this application embodiment provided brought is:
an inlet current simulator device is provided in embodiments of the present application. Can simulate indoor and outdoor work section test circuit, carry out the preset adjustment of entry electric current, reduce the use in A class skylight, shorten the adjustment time of construction diversion in-process entry electric current, reduce operation personnel work load, improve and block the test efficiency of diversion, guarantee that signal interlock transformation construction diversion safety is just a little. And meanwhile, data reading is more visual through the series ammeter. The test device can simulate a four-wire system and a two-wire system according to test requirements, meets different test requirements, is wide in application, is not limited by a test site, and can be used indoors and outdoors.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Wherein:
FIG. 1 is a system block diagram of an inlet current simulator apparatus provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of 2 switching devices provided in an embodiment of the present application;
FIG. 3 is a schematic diagram of an inlet current test circuit for outdoor measurement according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of an indoor test four-wire coded input current circuit according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of an indoor test two-wire coded input current circuit according to an embodiment of the present disclosure.
Detailed Description
The present application will be described in detail below with reference to the embodiments with reference to the attached drawings. The various examples are provided by way of explanation of the application and are not limiting of the application. In fact, it will be apparent to those skilled in the art that modifications and variations can be made in the present application without departing from the scope or spirit of the application. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. It is therefore intended that the present application cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
An inlet current simulator device is provided in the embodiments of the present application. The invention mainly solves the problems of short adjusting time and large engineering quantity in the inlet current debugging process,
as shown in figure 1 of the drawings, in which,
an inlet current simulator device, the device comprising:
the device comprises a test port, a first switching device, a second switching device, a first variable resistor, a second variable resistor, a matching box, an isolation box, a track transformer and an ammeter, wherein the test port is connected with the first switching device;
the first switch device, the first variable resistor and the ammeter are electrically connected to form a first analog circuit for simulating an outdoor test inlet current circuit;
the second switch device, the second variable resistor, the matching box, the first variable resistor and the ammeter are electrically connected to form a second analog circuit for simulating indoor testing of the four-wire coded input current circuit;
the second switch device, the first variable resistor, the isolation box and the ammeter are electrically connected to form a third analog circuit for simulating indoor testing of the two-wire coded input current circuit;
when the first switch device and the second switch device are in a first connection state, the first analog circuit and the test port form a passage;
when the first switch device and the second switch device are in a second connection state, the second analog circuit and the test port form a passage;
when the first switching device and the second switching device are in the third connection state, the third analog circuit and the test port form a passage.
Fig. 1 is a schematic diagram of a simulator structure. The second contact 12 of the first selector switch 1, the first variable resistor RX1 and the ammeter are connected in series and then electrically connected with the second contact 22 of the second selector switch 2 to form a first analog circuit; after the first contact 31, the second variable resistor, the matching box HBP-T, the first variable resistor RX1 and the ammeter of the third selector switch 3 are connected in series, the first contact 41 of the fourth selector switch 4 is electrically connected to form a second analog circuit; after the second contact 32 of the third selector switch, the first variable resistor RX1, the isolation box WGL-T and the ammeter are connected in series, the third contact is electrically connected to the second contact 42 of the fourth selector switch to form a third analog circuit.
The first analog circuit is used for simulating outdoor testing of the inlet current circuit, the second analog circuit is used for simulating indoor testing of the four-wire system code inlet current circuit, the third analog circuit is used for simulating indoor testing of the two-wire system code inlet current circuit, the three analog circuits are independent and do not influence each other, and the corresponding analog circuits can be selected to be connected into a channel to conduct inlet current testing according to actual working requirements.
It can be understood that each analog circuit is connected with an ammeter in series, current data can be displayed visually when inlet current measurement is carried out, and the operation is simple and rapid. The three analog circuits simulate the inlet current test circuit required by different works, are integrated on one device, are convenient to carry, have wide application range, meet different requirements, improve the working efficiency, shorten the test time and simultaneously reduce the working strength.
As shown in fig. 2, fig. 2 is a schematic structural diagram of the first switching device and the second switching device. The first switching device K1 comprises a first selector switch 1 and a second selector switch 2, the first selector switch 1 comprises a common contact 10, a first contact 11 and a second contact 12, the second selector switch 2 comprises a common contact 20, a first contact 21 and a second contact 22; the second switching device K2 comprises a third selector switch 3 and a fourth selector switch 4, the third selector switch 3 comprising a common contact 30, a first contact 31 and a second contact 32, the fourth selector switch 4 comprising a common contact 40, a first contact 41 and a second contact 42; the first contact 11 of the first selector switch 1 is electrically connected to the common contact 30 of the third selector switch 3, and the first contact 21 of the second selector switch 2 is electrically connected to the common contact 40 of the fourth selector switch 4. According to the use requirement, the public contact of the selection switch can be used for connecting different contacts.
As shown in fig. 3, fig. 3 is a schematic diagram of a circuit for simulating the inlet current test outdoors by a simulator. Referring to fig. 2 and 3, the first analog circuit is formed by connecting the second contact 12 of the first selection switch 1, the first variable resistor RX1, and the ammeter in series and then electrically connecting the second contact 22 of the second selection switch 2, and when the common contact 10 and the second contact 12 of the first selection switch 1 are connected and the common contact 20 and the second contact 22 of the second selection switch 2 are connected, the first switch device K1 and the second switch device K2 are in the first connection state, and at this time, the first analog circuit is connected to the test port. The first variable resistor RX1 in the first analog circuit simulates the track resistance of a test section, when outdoor test is needed, the device is used for selecting to be connected with the first analog circuit, the resistance of the first variable resistor RX1 is adjusted according to the length of a track of the test section, the resistance of the first variable resistor RX1 is adjusted to be the same as the track resistance of the test section, an outdoor test inlet current circuit can be formed, and inlet current measurement can be carried out at an outdoor track box by using a test port.
As shown in fig. 4, fig. 4 is a schematic diagram of a circuit simulating indoor testing of a four-wire coded input current. Referring to fig. 2 and 4, when the indoor test of the four-wire coded inlet current is required, the common contact 10 and the first contact 11 of the first selector switch 1 are connected, the common contact 20 and the first contact 21 of the second selector switch 2 are connected, and when the common contact 31 of the third selector switch 3 and the common contact 40 and the first contact 41 of the fourth selector switch 4 are connected, the first switch device K1 and the second switch device K2 are in the second connection state, and the second analog circuit is connected to the test port. The first variable resistor RX1 simulates the track resistance value of a test section, the second variable resistor RX2 simulates the cable resistance value of the test section, the first variable resistor and the second variable resistor are adjusted according to the length of the test section, an indoor test four-wire system code-based inlet current circuit can be formed, and the indoor test four-wire system code-based inlet current can be tested by using the test port at the indoor distribution board position.
As shown in fig. 5, fig. 5 is a diagram for simulating indoor testing of a two-wire coded inlet current circuit, and with reference to fig. 2 and 5, when the indoor testing of the two-wire coded inlet current is required, the common contact 10 of the first selector switch 1 and the first contact 11, the common contact 20 of the second selector switch 2 and the first contact 21 are connected, and when the common contact 30 of the third selector switch 3 and the second contact 32, and the common contact 40 of the fourth selector switch 4 and the second contact 42 are connected, the first switching device K1 and the second switching device K2 are in the third connection state, the third simulation circuit is connected with a test port, and the resistance value of the first variable resistor RX1 is adjusted according to the track length of the test section, so that the two-wire coded inlet current circuit can be tested indoors at the indoor distribution board position by using the test port.
This application variable resistance, simulation rail resistance and cable line resistance, simulation test load has solved the big problem of measurement work load among the actual work process, has solved the contradiction between code test construction and the railway transportation. The code pattern and the inlet current of the coding equipment can be tested in advance by utilizing equipment such as electronic elements to simulate the coding circuit equipment terminal and using different analog circuits, the inlet current simulator can be used for pre-adjusting and testing the code pattern and the inlet current before the existing line is blocked and diverted, indoor and outdoor wiring errors are checked, indoor and outdoor parts of the coding code sending circuit are thoroughly tested in advance, and the test accuracy is ensured.
As shown in fig. 1, the mating box HBP-T has 4 interfaces, which are a first interface A1, a second interface A2, a third interface A3, and a fourth interface A4, respectively, and the isolation box WGL-T has 4 interfaces, which are a first interface I1, a second interface I2, a third interface I3, and a fourth interface I4, respectively. The connection of the matching box HBP-T in the second analog circuit is specifically: the third interface A3 is connected in series with the second variable resistor RX2 and the first contact 31 of the third selector switch 3, the first interface A1 is connected in series with the first variable resistor RX1 and the ammeter and then connected with the second interface A2, and the fourth interface A4 is connected with the first contact 41 of the fourth selector switch 4; the isolation box WGL-T in the third circuit specifically comprises: the third interface I3 is connected to the second contact 42 of the fourth selection switch 4, the first interface I1 is connected to the third interface I3 after being connected in series to the first variable resistor RX1 and the ammeter, and the fourth interface 4 is connected to the second contact 42 of the fourth selection switch.
It can be understood that the matching box HBP-T is an indoor four-wire coded track circuit device, the connection on the second analog circuit adopts a four-wire coded track box wiring mode, the isolation box WGL-T is an indoor two-wire coded track circuit device, and the connection on the third analog circuit adopts a two-wire coded track box wiring mode.
The track transformer is electrically connected to the non-interface side of the isolation box after being connected in series with a fixed resistor.
It will be appreciated that the non-interface side of the isolation box is in a direction other than 4 interface ends.
The device also comprises two circuit breakers, wherein one ends of the two circuit breakers are respectively and independently electrically connected with the common contacts of the first selector switch and the second selector switch, and the other ends of the two circuit breakers are respectively connected with the 2 test ports.
As shown in FIG. 1, 2 circuit breakers 3A are connected at the inner side of the test port, and the circuit breakers provide overcurrent protection for the simulator, so that when a measurement position error is prevented, large current enters the simulator to cause damage to the simulator.
When the track section measured by the device is a power receiving end, the fixed resistor short-circuit connection is not connected with the track transformer in series on the non-interface side of the isolation box any more; when the track section measured by the device is a power transmission end, the fixed resistor and the track transformer are connected in series on the non-interface side of the isolation box.
It can be understood that the track section to be tested is divided into a power receiving end and a power transmitting end, and whether the fixed resistor of the third analog circuit is connected into the analog circuit depends on whether the track section is the power receiving end or the power transmitting end.
In a second aspect, a method of inlet current pre-debugging, the method comprising:
when outdoor inlet current testing is carried out, the common contact of the first selection switch and the common contact of the second selection switch are both communicated with the respective second contacts, the first circuit is communicated, and after the resistance value of the first variable resistor is adjusted according to the length of the steel rail of the testing section, the inlet current testing is carried out outdoors;
when an indoor four-wire system coding current test is carried out, the common contact of the first selector switch and the common contact of the second selector switch are both communicated with respective first contacts, and the common contact of the third selector switch and the common contact of the fourth selector switch are both communicated with respective first contacts, the second circuit is communicated, and after the resistance values of the first variable resistor and the second variable resistor are respectively adjusted according to the length of a steel rail and the length of a cable in a test section, the four-wire system coding current test is carried out indoors;
when an indoor two-wire system code current test is carried out, the common contact of the first selector switch and the common contact of the second selector switch are both communicated with the respective first contacts, and when the common contact of the third selector switch and the common contact of the fourth selector switch are both communicated with the respective second contacts, the third circuit is communicated, and after the resistance value of the first variable resistor is adjusted according to the length of the steel rail of the test section, the two-wire system code current test is carried out indoors.
The specific implementation of the above steps of the method may refer to the relevant contents of the above inlet current simulator device, and will not be described herein again.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (12)
1. An inlet current simulator device, the device comprising:
the device comprises a test port, a first switching device, a second switching device, a first variable resistor, a second variable resistor, a matching box, an isolation box, a rail transformer and an ammeter;
the first switch device, the first variable resistor and the ammeter are electrically connected to form a first simulation circuit for simulating an outdoor test inlet current circuit;
the second switch device, the second variable resistor, the matching box, the first variable resistor and the ammeter are electrically connected to form a second analog circuit for simulating indoor testing of the four-wire coded input current circuit;
the second switch device, the first variable resistor, the isolation box and the ammeter are electrically connected to form a third analog circuit for simulating indoor testing of a two-wire coded input current circuit;
when the first switching device and the second switching device are in a first connection state, a first analog circuit and the test port form a passage;
when the first switch device and the second switch device are in a second connection state, a second analog circuit and the test port form a passage;
when the first switching device and the second switching device are in a third connection state, a third analog circuit and the test port form a passage.
2. The inlet current simulator device according to claim 1, wherein the first switch device comprises a first selection switch and a second selection switch, the first selection switch and the second selection switch each comprising a common contact, a first contact and a second contact; the second switch device comprises a third selection switch and a fourth selection switch, and the third selection switch and the fourth selection switch comprise a common contact, a first contact and a second contact; the first contact of the first selector switch is electrically connected with the common contact of the third selector switch, and the first contact of the second selector switch is electrically connected with the common contact of the fourth selector switch.
3. The inlet current simulator device according to claim 1, wherein the first simulation circuit is formed by connecting the second contact of the first selection switch, the first variable resistor, and the ammeter in series and electrically connecting the second contact of the second selection switch, and when the common contact of the first selection switch and the common contact of the second selection switch are both connected to the respective second contacts, the first switch device and the second switch device are in a first connection state.
4. The inlet current simulator device according to claim 1, wherein the second simulation circuit is constituted by the first contact of the third selector switch, the second variable resistor, the matching box, the first variable resistor, and the ammeter being electrically connected in series to the first contact of the fourth selector switch, and the first switch device and the second switch device are in the second connection state when the common contact of the first selector switch and the common contact of the second selector switch are both connected to the respective first contacts, and when the common contact of the third selector switch and the common contact of the fourth selector switch are both connected to the respective first contacts.
5. The inlet current simulator device according to claim 1, wherein the third simulation circuit is constituted by the second contact of the third selector switch, the first variable resistor, the isolation box, and the ammeter being connected in series and electrically connected to the second contact of the fourth selector switch, and wherein the first switch device and the second switch device are in a third connection state when the common contact of the first selector switch and the common contact of the second selector switch are both connected to the respective first contacts, and when the common contact of the third selector switch and the common contact of the fourth selector switch are both connected to the respective second contacts.
6. The inlet current simulator device according to claim 1, wherein said matching box and said isolation box each have 4 interfaces, a first interface, a second interface, a third interface, and a fourth interface.
7. The inlet current simulator device according to claim 6, wherein said matching box is connected in said second circuit in a manner that: the third interface is connected with the second variable resistor and a first contact of the third selector switch in series, the first interface is connected with the third interface after being connected with the first variable resistor and the ammeter in series, and the fourth interface is connected with a first contact of the fourth selector switch; the connection mode of the isolation box in the third circuit is as follows: the third interface is connected with a second contact of the fourth selector switch, the first interface is connected with the third interface after being connected with the first variable resistor and the ammeter in series, and the fourth interface is connected with a second contact of the fourth selector switch.
8. The inlet current simulator device according to claim 1, wherein the rail transformer is electrically connected to the non-interface side of the barrier box after being connected in series with a fixed resistor.
9. The inlet current simulator device according to claim 1, further comprising two circuit breakers, one end of each of the two circuit breakers being independently electrically connected to a common contact of the first selector switch and the second selector switch, respectively, and the other end of each of the two circuit breakers being connected to 2 of the test ports, respectively.
10. An inlet current simulator device according to claim 1, wherein when the section of track measured by the device is the powered end, the fixed resistive short circuit connection is no longer connected in series with the track transformer on the non-interface side of the isolation box; when the track section measured by the device is a power transmission end, the fixed resistor and the track voltage transformer are normally connected in series to the non-interface side of the isolation box.
11. The inlet current simulator device according to claim 1, wherein the first variable resistance simulates a track resistance and the second variable resistance simulates a cable resistance.
12. A method for pre-debugging an inlet current, wherein the method is applied to the simulator device of claims 1 to 12, and the method comprises:
when outdoor inlet current testing is carried out, the common contact of the first selector switch and the common contact of the second selector switch are both communicated with the respective second contacts, the first circuit is communicated, and after the resistance value of the first variable resistor is adjusted according to the length of a steel rail of a testing section, the inlet current testing is carried out outdoors;
when an indoor four-wire system coding current test is carried out, the common contact of the first selector switch and the common contact of the second selector switch are both communicated with the respective first contacts, and when the common contact of the third selector switch and the common contact of the fourth selector switch are both communicated with the respective first contacts, the second circuit is communicated, and after the resistance values of the first variable resistor and the second variable resistor are respectively adjusted according to the length of a steel rail and the length of a cable in a test section, the four-wire system coding current inlet test is carried out indoors;
when an indoor two-wire system coding current test is carried out, the common contact of the first selector switch and the common contact of the second selector switch are both communicated with the respective first contacts, when the common contact of the third selector switch and the common contact of the fourth selector switch are both communicated with the respective second contacts, the third circuit is communicated, and after the resistance value of the first variable resistor is adjusted according to the length of a steel rail of a test section, the two-wire system coding inlet current test is carried out indoors.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211348401.7A CN115892117A (en) | 2022-10-31 | 2022-10-31 | Inlet current simulator device and pre-debugging method |
| JP2024501254A JP2024527747A (en) | 2022-10-31 | 2023-04-23 | Inlet current simulator device and pre-debug method |
| PCT/CN2023/090038 WO2023169601A1 (en) | 2022-10-31 | 2023-04-23 | Inlet current simulator apparatus and pre-commissioning method |
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| CN202211348401.7A CN115892117A (en) | 2022-10-31 | 2022-10-31 | Inlet current simulator device and pre-debugging method |
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| CN115892117A true CN115892117A (en) | 2023-04-04 |
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| CN202211348401.7A Pending CN115892117A (en) | 2022-10-31 | 2022-10-31 | Inlet current simulator device and pre-debugging method |
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| JP (1) | JP2024527747A (en) |
| CN (1) | CN115892117A (en) |
| WO (1) | WO2023169601A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023169601A1 (en) * | 2022-10-31 | 2023-09-14 | 中铁九局集团电务工程有限公司 | Inlet current simulator apparatus and pre-commissioning method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010056340A1 (en) * | 2000-06-26 | 2001-12-27 | Gorin Igor Anatoly | CDM simulator for testing electrical devices |
| CN201646775U (en) * | 2010-05-04 | 2010-11-24 | 西安铁路局西安电务器材厂 | High-voltage pulse and frequency shift double-standard track circuit |
| CN203894342U (en) * | 2014-03-05 | 2014-10-22 | 山西太钢不锈钢股份有限公司 | Railway signal simulation outdoor device test unit |
| CN105548784B (en) * | 2016-03-01 | 2018-10-09 | 北京群菱能源科技有限公司 | A kind of electric vehicle direct current vehicle interface circuit simulator |
| CN208334565U (en) * | 2018-05-07 | 2019-01-04 | 北京铁通信达科技有限公司 | A kind of track circuit testing system |
| CN111141940A (en) * | 2020-02-18 | 2020-05-12 | 工业和信息化部威海电子信息技术综合研究中心 | Test circuit |
| CN115892117A (en) * | 2022-10-31 | 2023-04-04 | 中铁九局集团电务工程有限公司 | Inlet current simulator device and pre-debugging method |
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- 2022-10-31 CN CN202211348401.7A patent/CN115892117A/en active Pending
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2023
- 2023-04-23 JP JP2024501254A patent/JP2024527747A/en active Pending
- 2023-04-23 WO PCT/CN2023/090038 patent/WO2023169601A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023169601A1 (en) * | 2022-10-31 | 2023-09-14 | 中铁九局集团电务工程有限公司 | Inlet current simulator apparatus and pre-commissioning method |
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| WO2023169601A1 (en) | 2023-09-14 |
| JP2024527747A (en) | 2024-07-26 |
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