CN210639248U - Railway signal is with open-phase protector testboard - Google Patents
Railway signal is with open-phase protector testboard Download PDFInfo
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- CN210639248U CN210639248U CN201920931514.7U CN201920931514U CN210639248U CN 210639248 U CN210639248 U CN 210639248U CN 201920931514 U CN201920931514 U CN 201920931514U CN 210639248 U CN210639248 U CN 210639248U
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Abstract
The utility model discloses a railway signal is with protector testboard that breaks phase, including the testboard main part, the inside of testboard main part is provided with power voltage regulator, voltage display part, control switch, start stop part, electric stopwatch, the protector that breaks phase, protection relay, output voltage display part, coil pressure drop display part, current display part, open-phase switch, current regulator and three-phase load, power voltage regulator's input passes through the wire and connects three phase current. A railway signal is with protector testboard that opens phase, can realize according to the requirement of iron standard, carry out all-round detection to the protector normal atmospheric temperature performance that opens phase for railway signal to can assist environmental test such as high and low temperature, electromagnetic compatibility, the content of test is more comprehensive, the result of test is more accurate, the administrative department of being convenient for masters the quality situation of railway signal with protector that opens phase, brings better use prospect.
Description
Technical Field
The utility model relates to a railway signal product detects technical field, in particular to railway signal is with open-phase protector testboard.
Background
The phase loss protector for railway signal is an important device in the field of railway switch control. When the turnout is pulled, the protector outputs direct-current voltage to drive the excitation of the protective relay to attract, the switch machine is maintained to continuously operate, and the turnout conversion is realized. When the protector is in fault, the turnout can not be normally switched. Therefore, the quality of the protector directly influences the driving safety.
At present, a plurality of manufacturers of phase failure protectors for railway signals are available, and the quality of products is also uneven. Because no uniform detection equipment exists, a simple test bench is generally set up to test the finished protector product, the product quality cannot be controlled well due to the limitation of a test strip; before the railway product is used on the upper road, the railway management department can test various parameters, stability, reliability and other aspects of the product, and the application reliability of the product cannot be guaranteed because the protector product detection equipment is simple and the management department cannot well master the quality condition of the product; the phase loss protector for railway signals has the railway industry standard, but an authoritative detection mechanism does not have a complete detection device for the product, so that inconvenience is brought to product detection and acceptance, and therefore a phase loss protector test board for railway signals is researched and developed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a railway signal is with open-phase protector testboard can effectively solve the problem among the background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a phase failure protector test bench for railway signals comprises a test bench main body, wherein a power supply voltage regulator, a voltage display component, a control switch, a start stop component, an electric stopwatch, a phase failure protector, a protection relay, an output voltage display component, a coil voltage drop display component, a current display component, a phase failure switch, a current regulator and a three-phase load are arranged in the test bench main body, the input end of the power supply voltage regulator is connected with the three-phase power supply through a lead, the power supply voltage regulator, the control switch, the phase failure protector, the current display component, the phase failure switch, the current regulator and the three-phase load are sequentially connected through leads in sequence, the voltage display component is connected with the output end of the power supply voltage regulator through a lead, the start stop component and the electric stopwatch are connected with the control switch through leads, two ends of the protection relay are respectively connected with the electric, the output voltage display part and the coil voltage drop display part are both connected with the open-phase protector through leads;
the power supply voltage regulator: used for adjusting the input three-phase voltage;
the voltage display part: the phase failure protector is used for measuring and displaying the working voltage value of the phase failure protector for railway signals;
the control switch is: the device is used for controlling the on-off of three-phase power;
the electric stopwatch comprises: the device is used for measuring delay holding time, starting response time and phase failure response time;
the open-phase protector comprises: the protective relay is used for providing working voltage for the protective relay;
the output voltage display part: the phase failure protector is used for displaying the output voltage value of the phase failure protector for railway signals;
the coil voltage drop display part: the phase loss protector is used for displaying the coil voltage drop when the phase loss protector for railway signals works;
the current display part: the protector working current value is measured and displayed;
the current regulator: for regulating the operating current of the protector.
Preferably, power voltage regulator and current regulator all include three-phase autotransformer, servo motor, regulating switch and power, the positive negative pole of power is connected with regulating switch and servo motor through the wire respectively, servo motor is connected with three-phase autotransformer's adjust knob, regulating switch adopts double-pole double-throw switch, connect one between three-phase autotransformer's the output two-phase.
Preferably, the voltage display part and the coil voltage drop display part both comprise three digital display alternating current voltage meters, the measuring ranges of the digital display alternating current voltage meters on the voltage display part are all AC-V, the measuring ranges of the digital display alternating current voltage meters on the coil voltage drop display part are all AC-V, the output voltage display part adopts three groups of digital display direct current voltage meters, and the measuring ranges of the digital display direct current voltage meters are all DC 0-30V.
Preferably, the current display part comprises three digital display alternating current ammeters, and the measuring ranges of the three digital display alternating current ammeters are all AC 0-10A.
Preferably, the start-stop means includes a relay and two sets of switches.
Preferably, the electric stopwatch comprises two millisecond timers.
Preferably, the open-phase protector is inserted on the relay base.
Preferably, the relay of the protective relay and the relay of the start-stop component both adopt a JWJXC-1700 type relay,
preferably, the phase-failure switch comprises three groups of independent push-button switches, and the three groups of push-button switches are connected in series between the current display part and the current regulator in the three-phase loop.
Preferably, the three-phase load comprises three 100 Ω/1000W winding resistors, and the three winding resistors are connected in a star connection manner.
Compared with the prior art, the utility model provides a railway signal is with open-phase protector testboard has following beneficial effect:
1. the current is adjusted by adopting the autotransformer and the fixed load, so that the problem that the sliding rheostat is not beneficial to adjustment when used as a load is solved;
2. the rotation direction of the servo motor is controlled through the switch, so that the autotransformer is adjusted, and voltage and current adjustment is facilitated;
3. the detection table and the load box are provided with sliding wheels, so that the movement is convenient, and the test requirements of different fields such as a high-temperature test, a low-temperature test, an electromagnetic compatibility test and the like are facilitated;
4. the phase failure protector for railway signals can be directly inserted into the test board and also can be inserted into the test board through an extension line, so that the high-temperature and low-temperature environment test is facilitated;
5. after the start stop switch is closed, the voltage display component and the current display component display the working voltage and current of the phase-failure protector for railway signals, the protector works in the voltage and current range of AC304-437V/AC1A-5A through the adjustment of a power supply voltage regulator and a current regulator, and the technical parameters of the protector are measured by reading the readings of an electric stopwatch, an output voltage display component and a coil voltage drop display component, so that the time characteristic and the electrical characteristic of the phase-failure protector for railway signals at normal temperature are tested; in addition, through the mode of extension line, insert the one end of extension line on the open-phase protector base for railway signal, the open-phase protector for railway signal is pegged graft at the extension line other end, arrange the open-phase protector for railway signal in the environment box or arrange the electromagnetic compatibility environment in, supplementary completion is high low temperature performance test of the open-phase protector for railway signal and electromagnetic compatibility test, the content of test is more comprehensive, the result of test is more accurate, the management department of being convenient for masters the quality situation of the open-phase protector for railway signal, and whole railway signal is with the simple structure of open-phase protector testboard, and the operation is more convenient, the result of use is better for traditional mode, satisfy people's operation requirement, and is relatively practical.
The parts of the device not involved are the same as or can be implemented using prior art.
Drawings
Fig. 1 is a schematic block diagram of a phase loss protector test board for railway signals of the present invention;
FIG. 2 is a schematic diagram of a main circuit of a test board of the open-phase protector for railway signals according to the present invention;
fig. 3 is a schematic diagram of a power supply voltage regulator and a current regulator in the phase loss protector test board for railway signals of the present invention;
FIG. 4 is a schematic diagram of a starting and stopping component in a phase loss protector test board for railway signals according to the present invention;
fig. 5 and fig. 6 are timing schematic diagrams of an electric stopwatch in the phase loss protector test board for railway signals according to the present invention;
fig. 7 is a test extension line diagram in the phase loss protector test board for railway signals of the utility model;
fig. 8 is a front view of the phase loss protector test board for railway signals of the present invention;
fig. 9 is the utility model discloses a side view in phase loss protector testboard for railway signal.
In the figure: 1. a power supply voltage regulator; 2. a voltage display part; 3. a control switch; 4. starting a stopping component; 5. an electric stopwatch; 6. a phase loss protector; 7. a protective relay; 8. an output voltage display section; 9. a coil voltage drop display section; 10. a current display section; 11. an open-phase switch; 12. a current regulator; 13. a three-phase load; 14. the testboard main part.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
A phase failure protector test bench for railway signals is disclosed, as shown in figure 1, comprising a test bench main body 14, a power supply voltage regulator 1, a voltage display component 2, a control switch 3, a start stop component 4, an electric stopwatch 5, a phase failure protector 6, a protective relay 7, an output voltage display component 8, a coil voltage drop display component 9, a current display component 10, a phase failure switch 11, a current regulator 12 and a three-phase load 13 are arranged in the test bench main body 14, the input end of the power supply voltage regulator 1 is connected with a three-phase power supply through a lead, the power supply voltage regulator 1, the control switch 3, the phase failure protector 6, the current display component 10, the phase failure switch 11, the current regulator 12 and the three-phase load 13 are sequentially connected through leads, the voltage display component 2 is connected with the output end of the power supply voltage regulator 1 through a lead, the start stop component 4 and the electric stopwatch, two ends of the protective relay 7 are respectively connected with the electric stopwatch 5 and the open-phase protector 6 through leads, and the output voltage display part 8 and the coil voltage drop display part 9 are both connected with the open-phase protector 6 through leads;
power supply voltage regulator 1: used for adjusting the input three-phase voltage;
voltage display section 2: the phase failure protector 6 is used for measuring and displaying the working voltage value of the railway signal;
the control switch 3: the device is used for controlling the on-off of three-phase power;
electric stopwatch 5: the device is used for measuring delay holding time, starting response time and phase failure response time;
and (3) phase loss protector 6: for supplying the protective relay 7 with an operating voltage;
output voltage display section 8: the phase failure protector 6 is used for displaying the output voltage value of the railway signal;
coil voltage drop display section 9: the phase loss protector is used for displaying the coil voltage drop of the railway signal when the phase loss protector 6 works;
current display section 10: the protector working current value is measured and displayed;
the current regulator 12: for regulating the operating current of the protector.
As shown in fig. 1-3, the power voltage regulator 1 and the current regulator 12 each include a three-phase autotransformer, a servo motor, a regulating switch and a power supply, the positive and negative poles of the power supply are respectively connected with the regulating switch and the servo motor through wires, the servo motor is connected with a regulating knob of the three-phase autotransformer, the regulating switch is a double-pole double-throw switch, two phases at the output end of the three-phase autotransformer are connected in parallel, and when the three-phase autotransformer is used, the rotation direction of the servo motor is changed by regulating the regulating switch, so as to achieve the forward rotation and reverse rotation regulation of the three-phase autotr.
As shown in fig. 1-2, the voltage display part 2 and the coil voltage drop display part 9 both comprise three digital display alternating current voltmeters, the measuring ranges of the digital display alternating current voltmeters on the three voltage display parts 2 are all AC0-500V, and the digital display alternating current voltmeters are used for measuring and displaying the working voltage values (AC304-437V) of the phase failure protector 6 for railway signals.
As shown in fig. 1-2, the digital display AC voltmeter of the three coil voltage drop display parts 9 has the measuring range of AC0-10V, and is respectively connected in parallel to the terminal of the open-phase protector 6 for railway signals, so as to display the coil voltage drop when the open-phase protector 6 for railway signals works;
as shown in fig. 1-2, the output voltage display unit 8 adopts three digital display DC voltage meters, the measuring ranges of the three digital display DC voltage meters are DC0-30V, and the three digital display DC voltage meters are connected to the output end of the open-phase protector 6 or the input coil of the protective relay 7 through a lead to display the output voltage value of the open-phase protector 6 for railway signals.
As shown in fig. 1-2, the control switch 3 is a set of control contacts of a relay, wherein three sets of normally open contacts are connected in series between the voltage display part 2 and the open-phase protector 6 in the three-phase loop for controlling the three-phase power to be switched on and off; one set of normally open contacts is connected to the electric stopwatch 5 for the timing condition of the electric stopwatch 5.
As shown in fig. 1 to 6, the current display part 10 comprises three digital display alternating current meters, the measuring ranges of the three digital display alternating current meters are all AC0-10A, and the three digital display alternating current meters are connected in series between the open-phase protector 6 and the open-phase switch 11 on the three-phase loop and are used for measuring and displaying the working current value (AC1-5A) of the protector.
As shown in fig. 1-4, the start-stop component 4 comprises a relay and two sets of switches, when the start switch is switched on, the contact of the control switch 3 is closed, and the railway signal works by the phase-loss protector 6; when the stop switch is turned off, the contact of the control switch 3 is turned off, and the working power supply of the phase loss protector 6 for railway signals is cut off.
As shown in fig. 1 to 6, the electric stopwatch 5 includes two millisecond timers, and the measurement of the delay hold time, the start response time and the phase failure response time is realized by acquiring the conditions of the contact of the control switch 3 and the contact of the protective relay 7.
As shown in fig. 1 to 7, the open-phase protector 6 is inserted into the relay base and electrically connected to an external circuit through a base wiring terminal.
As shown in fig. 1-4, the relay of the protective relay 7 and the relay of the start-stop component 4 both adopt a JWJXC-1700 type relay, and the terminal of the protective relay 7 is connected with the terminal of the open-phase protector 6 to receive the power supply voltage of the open-phase protector 6 for railway signals; one of the closed contacts of the protective relay 7 is connected to the electric stopwatch 5 as a timing condition of the electric stopwatch 5.
As shown in fig. 1-2, the open-phase switch 11 includes three groups of independent button switches, the three groups of button switches are connected in series between the current display part 10 and the current regulator 12 in the three-phase loop, and the protector can be disconnected after working, and the open-phase output voltage is measured through the output voltage display meter.
As shown in fig. 1-2, the three-phase load 13 includes three 100 Ω/1000W winding resistors, the three winding resistors are connected in star connection, and the three-phase load 13 and the current regulator 12 are used together as the working load of the phase-loss protector 6 for railway signals.
As shown in fig. 8-9, the bottom of the testing table main body 14 is provided with a sliding wheel, so that the testing table can be moved conveniently when high-low temperature and electromagnetic compatibility environment testing is required.
It should be noted that, the utility model relates to a railway signal is with protector testboard that loses phase, during the use, as shown in fig. 1-2, after control switch 3 closed, the three-phase power supply was through power voltage regulator 1, control switch 3, loss of phase protector 6, current display part 10, loss of phase switch 11, current regulator 12, and the three-phase load 13 that flows through at last, loss of phase protector 6 began to work, and at this moment, voltage display part 2 shows the operating voltage of protector 6 that loses phase for railway signal; the current display part 10 displays the working current of the phase-failure protector 6 for railway signals, and the coil voltage drop display part 9 displays the coil voltage drop of the phase-failure protector 6 for railway signals; the output voltage display part 8 displays the output voltage of the phase-failure protector 6 for railway signals, any phase-failure switch 11 is switched off, the phase-failure protector 6 for railway signals stops outputting, and at the moment, the output voltage display part 8 displays the phase-failure output voltage;
when the phase-failure protector is used, as shown in fig. 3, a rotating mechanical part of a servo motor in the power supply voltage regulator 1 is connected with a rotating shaft of the voltage regulator, and the adjusting switch is arranged on the left side or the right side, so that clockwise rotation or anticlockwise rotation of the servo motor can be realized, and forward or reverse phase adjustment of the voltage regulator can be realized, so that the effects of adjusting a three-phase voltage value and a three-phase current value are realized, and the phase-failure protector 6 for railway signals works in a required voltage and current environment;
when the relay is used, as shown in fig. 4, the relay is a JWJXC-1700 type relay, the control switch 3 shown in fig. 2 is three groups of normally open contacts of the relay, the starting switch is connected with a group of normally open contacts of the protective relay 7 in parallel, the starting switch is pressed, the relay is attracted, all the normally open contacts are closed, so that the control switch 3 is closed, the railway signal phase-failure protector 6 works, the railway signal phase-failure protector 6 outputs direct-current voltage to drive the protective relay 7 to attract, after the starting switch is loosened, the contacts of the protective relay 7 are closed, the relay is maintained to attract, so that the railway signal phase-failure protector 6 is maintained to continuously supply power to work, after the stopping switch is pressed, the relay loses power and falls, the normally open contacts are opened, and the railway signal phase-failure protector 6 loses power to stop working;
when the device is used, as shown in fig. 5 and 6, fig. 6 comprises a relay and a protective relay 7, the relay is positioned below the protective relay 7, after the starting switch of fig. 4 is pressed, the railway signal starts to work by the open-phase protector 6, direct current voltage is output to drive the protective relay 7 to suck, the normally open contact of the protective relay is closed at the moment, the time-limiting stopwatch utilizes one group of normally open contacts to time, the time-limiting stopwatch starts to time after the normally open contacts are closed, when a certain time is reached, the railway signal stops working by the open-phase protector 6, the normally open contact of the protective relay 7 is opened, the time-limiting stopwatch stops to time, and the reading of the time-limiting stopwatch is the delay holding time; after the starting switch shown in fig. 4 is pressed, the relay is attracted, one group of contacts is closed, the starting/phase interruption stopwatch starts to time, after the phase interruption protector 6 for railway signals works, the protective relay 7 is driven to attract, one group of normally open contacts is closed, the starting/phase interruption stopwatch stops timing, and at the moment, the reading of the starting/phase interruption stopwatch is the corresponding starting time of the phase interruption protector 6 for railway signals; after the phase interruption protector 6 for railway signals works, the stop switch of the figure 4 is switched off, the relay is switched off, the contact of the relay is switched off, the start/phase interruption stopwatch starts to time, the control switch 3 of the figure 2 is switched off due to the switching off of the relay, the phase interruption protector 6 for railway signals stops working, so that the protective relay 7 is switched off, the contact of the protective relay 7 is switched off, and the start/phase interruption stopwatch stops to time, at the moment, the reading of the start/phase interruption stopwatch is the phase interruption response time of the phase interruption protector 6 for railway signals;
when the phase-loss protector is used, as shown in fig. 7, the phase-loss protector 6 for railway signals is inserted into the relay socket, the base of the phase-loss protector 6 for railway signals is inserted into the position of the phase-loss protector 6 for railway signals of the test board, and the phase-loss protector 6 for railway signals and the relay socket are placed in a high-low temperature box or an electromagnetic compatibility environment together, so that a high-temperature test, a low-temperature test and an electromagnetic compatibility test can be completed in an auxiliary manner;
when in use, as shown in fig. 8 and 9, the sliding wheels are arranged at the bottom of the test platform, so that the test platform can move conveniently when high-low temperature and electromagnetic compatibility environment tests are required;
when the device is used, the current is adjusted by adopting the autotransformer and the fixed load, so that the problem that the sliding rheostat is not beneficial to adjustment when used as a load is solved;
when the device is used, the rotation direction of the servo motor is controlled through the switch, so that the autotransformer is adjusted, and voltage and current adjustment is facilitated;
when the test bed is used, the detection platform and the load box are both provided with the sliding wheels, so that the test bed is convenient to move, and is convenient for testing requirements of different fields such as a high-temperature test, a low-temperature test, an electromagnetic compatibility test and the like;
when in use, the phase failure protector 6 for railway signals can be directly inserted on the test board or can be inserted on the test board through an extension line, so that the high-temperature and low-temperature environmental test is facilitated;
when in use, after the start stop switch is closed, the voltage display part 2 and the current display part 10 display the working voltage and current of the phase-failure protector 6 for railway signals, the protector works in the voltage and current range of AC304-437V/AC1A-5A through the adjustment of the power supply voltage regulator 1 and the current adjuster 12, and the technical parameters of the protector are measured by reading the readings of the electric stopwatch 5, the output voltage display part 8 and the coil voltage drop display part 9, so that the test of the time characteristic and the electric characteristic of the phase-failure protector 6 for railway signals at normal temperature is realized; in addition, through the mode of extension line, insert the one end of extension line on the base of railway signal with open-phase protector 6, railway signal is with open-phase protector 6 pegs graft at the extension line other end, arrange railway signal with open-phase protector 6 in the environment box or arrange the electromagnetic compatibility environment in, supplementary completion railway signal is with 6 high and low temperature capability test of open-phase protector and electromagnetic compatibility test, the content of test is more comprehensive, the result of test is more accurate, the management department of being convenient for masters the quality situation of railway signal with open-phase protector, and the simple structure of whole railway signal with open-phase protector testboard, and the operation is more convenient, the result of use is better for traditional mode, satisfy people's operation requirement, and is comparatively practical.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a railway signal is with protector testboard that loses phase, includes testboard main part (14), its characterized in that: the test bench is characterized in that a power supply voltage regulator (1), a voltage display component (2), a control switch (3), a start stop component (4), an electric stopwatch (5), an open-phase protector (6), a protective relay (7), an output voltage display component (8), a coil voltage drop display component (9), a current display component (10), an open-phase switch (11), a current regulator (12) and a three-phase load (13) are arranged in the test bench main body (14), the input end of the power supply voltage regulator (1) is connected with the three-phase power supply through a lead, the power supply voltage regulator (1), the control switch (3), the open-phase protector (6), the current display component (10), the open-phase switch (11), the current regulator (12) and the three-phase load (13) are sequentially connected through leads, and the voltage display component (2) is connected with the output end of the power supply voltage regulator (, the starting and stopping component (4) and the electric stopwatch (5) are connected with the control switch (3) through leads, two ends of the protective relay (7) are respectively connected with the electric stopwatch (5) and the phase failure protector (6) through leads, and the output voltage display component (8) and the coil voltage drop display component (9) are connected with the phase failure protector (6) through leads;
the power supply voltage regulator (1): used for adjusting the input three-phase voltage;
the voltage display part (2): the phase failure protector (6) is used for measuring and displaying the working voltage value of the railway signal;
the control switch (3): the device is used for controlling the on-off of three-phase power;
the electric stopwatch (5): the device is used for measuring delay holding time, starting response time and phase failure response time;
the open-phase protector (6): for providing a working voltage for the protective relay (7);
the output voltage display part (8): the phase failure protector (6) is used for displaying the output voltage value of the railway signal;
the coil voltage drop display part (9): the device is used for displaying the coil voltage drop of the railway signal when the phase failure protector (6) works;
the current display part (10): the protector working current value is measured and displayed;
the current regulator (12): for regulating the operating current of the protector.
2. The railway signal phase loss protector test bench according to claim 1, wherein: the power supply voltage regulator (1) and the current regulator (12) all include three-phase autotransformer, servo motor, regulating switch and power, the positive negative pole of power is connected with regulating switch and servo motor through the wire respectively, servo motor is connected with three-phase autotransformer's adjust knob, regulating switch adopts double-pole double-throw switch, the output of three-phase autotransformer connects in parallel together between the double-phase.
3. The railway signal phase loss protector test bench according to claim 1, wherein: voltage display part (2) and coil voltage drop display part (9) all include three digital display alternating current voltmeter, three the range of digital display alternating current voltmeter on voltage display part (2) is AC0-500V, three the range of digital display alternating current voltmeter on coil voltage drop display part (9) is AC0-10V, output voltage display part (8) adopt three groups digital display direct current voltmeter, three groups the range of digital display direct current voltmeter is DC 0-30V.
4. The railway signal phase loss protector test bench according to claim 1, wherein: the current display part (10) comprises three digital display alternating current ammeters, and the measuring ranges of the three digital display alternating current ammeters are all AC 0-10A.
5. The railway signal phase loss protector test bench according to claim 1, wherein: the start-stop component (4) comprises a relay and two groups of switches.
6. The railway signal phase loss protector test bench according to claim 4, wherein: the electric stopwatch (5) comprises two millisecond timers.
7. The railway signal phase loss protector test bench according to claim 1, wherein: and the open-phase protector (6) is inserted on the relay base.
8. The railway signal phase loss protector test bench according to claim 1, wherein: the relay of the protective relay (7) and the relay of the start-stop component (4) both adopt JWJXC-1700 type relays.
9. The railway signal phase loss protector test bench according to claim 1, wherein: the open-phase switch (11) comprises three groups of independent button switches which are connected in series between a current display part (10) and a current regulator (12) in a three-phase loop.
10. The railway signal phase loss protector test bench according to claim 1, wherein: the three-phase load (13) comprises three 100 omega/1000W winding resistors which are connected in a star connection mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920931514.7U CN210639248U (en) | 2019-06-19 | 2019-06-19 | Railway signal is with open-phase protector testboard |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920931514.7U CN210639248U (en) | 2019-06-19 | 2019-06-19 | Railway signal is with open-phase protector testboard |
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| CN210639248U true CN210639248U (en) | 2020-05-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095717A (en) * | 2019-06-19 | 2019-08-06 | 中铁检验认证中心有限公司 | A kind of railway signal phase failure protector testboard |
| CN113296042A (en) * | 2021-07-02 | 2021-08-24 | 杭州群特电气有限公司 | System and method for detecting current and time parameters of leakage current protector tester |
| CN113942541A (en) * | 2021-12-21 | 2022-01-18 | 中铁十四局集团电气化工程有限公司 | Portable turnout operation device and turnout operation method |
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2019
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095717A (en) * | 2019-06-19 | 2019-08-06 | 中铁检验认证中心有限公司 | A kind of railway signal phase failure protector testboard |
| CN110095717B (en) * | 2019-06-19 | 2024-06-04 | 中铁检验认证中心有限公司 | Phase failure protector test board for railway signals |
| CN113296042A (en) * | 2021-07-02 | 2021-08-24 | 杭州群特电气有限公司 | System and method for detecting current and time parameters of leakage current protector tester |
| CN113296042B (en) * | 2021-07-02 | 2022-07-26 | 杭州群特电气有限公司 | System and method for detecting current and time parameters of leakage current protector tester |
| CN113942541A (en) * | 2021-12-21 | 2022-01-18 | 中铁十四局集团电气化工程有限公司 | Portable turnout operation device and turnout operation method |
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