CN110095717B - Phase failure protector test board for railway signals - Google Patents
Phase failure protector test board for railway signals Download PDFInfo
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- CN110095717B CN110095717B CN201910533713.7A CN201910533713A CN110095717B CN 110095717 B CN110095717 B CN 110095717B CN 201910533713 A CN201910533713 A CN 201910533713A CN 110095717 B CN110095717 B CN 110095717B
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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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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Abstract
The invention discloses a phase-failure protector test board for railway signals, which comprises a test board main body, wherein a power voltage regulator, a voltage display part, a control switch, a starting and stopping part, an electric stopwatch, a phase-failure protector, a protection relay, an output voltage display part, a coil voltage drop display part, a current display part, a phase-failure switch, a current regulator and a three-phase load are arranged in the test board main body, and the input end of the power voltage regulator is connected with a three-phase power supply through a wire. The test board of the phase-failure protector for the railway signals can realize the omnibearing detection of the normal temperature performance of the phase-failure protector for the railway signals according to the requirements of the standard of the iron standard, can assist in the environment test of high and low temperature, electromagnetic compatibility and the like, has comprehensive test contents and accurate test results, is convenient for a management department to master the quality condition of the phase-failure protector for the railway signals, and brings better use prospect.
Description
Technical Field
The invention relates to the technical field of railway signal product detection, in particular to a phase failure protector test board for railway signals.
Background
The open-phase protector for railway signals is an important device in the field of railway turnout control. When the turnout is pulled, the protector outputs direct-current voltage to drive the protection relay to excite and suck, so as to maintain the continuous operation of the switch machine and realize the turnout conversion. When the protector fails, the switch cannot be switched normally. Therefore, the quality of the protector directly influences the driving safety.
At present, manufacturers of phase failure protectors for railway signals are numerous, and product quality is uneven. Because of no unified detection equipment, a simple test bench is generally built for testing finished products of the protector, and the quality of the products cannot be well controlled due to the limitation of test conditions; before the railway products are used on the way, railway management departments can test various parameters, stability, reliability and the like of the products, and as the protector product detection equipment is simple, the management departments cannot well master the quality conditions of the protector products, and therefore the application reliability of the protector products cannot be guaranteed; the open-phase protector for the railway signal has the railway industry standard, but the authoritative detection mechanism does not have a complete detection device aiming at the product, so that inconvenience is brought to product detection and acceptance, and therefore, the open-phase protector test bed for the railway signal is developed.
Disclosure of Invention
The invention mainly aims to provide a phase failure protector test board for railway signals, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The utility model provides a railway is open-phase protector testboard for signal, includes the testboard main part, the inside of testboard main part is provided with power supply voltage regulator, voltage display part, control switch, start stop part, electric stopwatch, open-phase protector, protection relay, output voltage display part, coil pressure drop display part, current display part, open-phase switch, current regulator and three-phase load, the input of power supply voltage regulator passes through the wire and connects three-phase power, pass through the wire in proper order between power supply voltage regulator, control switch, open-phase protector, current display part, open-phase switch, current regulator and the three-phase load and connect, voltage display part passes through the wire and is connected with the output of power supply voltage regulator, start stop part and electric stopwatch are all connected with control switch through the wire, the both ends of protection relay pass through the wire and connect electric stopwatch and open-phase protector respectively, output voltage display part and coil pressure drop display part are all connected with open-phase protector through the wire;
the power supply voltage regulator comprises: for adjusting the input three-phase voltage;
the voltage display unit: 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: the three-phase power supply is used for controlling the on-off of three-phase power;
the electric stopwatch: the method is used for realizing the measurement of delay hold time, start response time and open-phase response time;
The open-phase protector: for providing an operating voltage for the protective relay;
The output voltage display means: 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 means: the phase-failure protector is used for displaying the coil voltage drop when the phase-failure protector for railway signals works;
The current display means: the device is used for measuring and displaying the working current value of the protector;
The current regulator: for regulating the operating current of the protector.
Preferably, the power supply voltage regulator and the current regulator comprise a three-phase autotransformer, a servo motor, an adjusting switch and a power supply, wherein the positive electrode and the negative electrode of the power supply are respectively connected with the adjusting switch and the servo motor through wires, the servo motor is connected with an adjusting knob of the three-phase autotransformer, the adjusting switch adopts a double-pole double-throw switch, and a block is connected between two phases of the output end of the three-phase autotransformer in parallel.
Preferably, the voltage display part and the coil voltage drop display part comprise three digital display alternating current voltmeters, the measuring ranges of the digital display alternating current voltmeters on the three voltage display parts are all AC-V, the measuring ranges of the digital display alternating current voltmeters on the three coil voltage drop display parts are all AC-V, the output voltage display part adopts three groups of digital display direct current voltmeters, and the measuring ranges of the three groups of digital display direct current voltmeters are all DC0-30V.
Preferably, the current display part comprises three digital display alternating current ammeter, and the measuring ranges of the three digital display alternating current ammeter are all AC0-10A.
Preferably, the start stop member comprises a relay and two sets of switches, the switches being arranged in a row.
Preferably, the electronic stopwatch comprises a two millisecond timer.
Preferably, the phase failure protector is inserted on the relay base.
Preferably, the relay of the protection relay and the relay of the starting and stopping part are both JWJXC-1700 type relays,
Preferably, the open-phase switch comprises three groups of independent push-button switches, and the three groups of push-button switches are connected in series between a current display component and a current regulator in a three-phase loop.
Preferably, the three-phase load comprises three 100 omega/1000W winding resistors, and the three winding resistors are connected in a star connection mode.
Compared with the prior art, the invention provides the phase failure protector test board for the railway signals, which has the following beneficial effects:
1. the autotransformer and the fixed load are adopted to adjust the current, so that the problem that the sliding rheostat is not beneficial to adjustment when being used as the load is solved;
2. the rotation direction of the servo motor is controlled through the switch, so that the autotransformer is regulated, and the voltage and current are convenient to regulate;
3. The movable wheels are arranged on the detection table and the load box, so that the movable wheel is convenient to move and is convenient for testing requirements of different sites such as high-temperature tests, low-temperature tests and electromagnetic compatibility tests;
4. The phase failure protector for the railway signal can be directly inserted on the test bench, and also can be inserted on the test bench through an extension line, thereby being convenient for high-low temperature environment test;
5. After the start stop switch is closed, the voltage display part and the current display part 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 the power voltage regulator and the current regulator, and the technical parameters of the protector are measured through reading the readings of the electric stopwatch, the output voltage display part and the coil voltage drop display part, so that the test of the time characteristic and the electrical characteristic of the phase-failure protector 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 open-phase protector base for the railway signal, open-phase protector for the railway signal is pegged graft at the extension line other end, place the open-phase protector for the railway signal in the environment incasement or place in the electromagnetic compatibility environment in, the auxiliary completion open-phase protector for the railway signal high-low temperature performance test and the electromagnetic compatibility test, the content of test is more comprehensive, the result of test is more accurate, the management department of being convenient for master the quality situation of open-phase protector for the railway signal, moreover the structure of whole open-phase protector testboard for the railway signal is simple, and easy operation is moreover, the result of use is better for traditional mode, satisfy people's operation requirement, it is more practical.
None of the parts of the device are the same as or can be implemented using prior art.
Drawings
FIG. 1 is a schematic block diagram of a phase failure protector test stand for railway signals according to the present invention;
FIG. 2 is a schematic diagram of a main circuit of a phase failure protector test stand 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 a phase failure protector test stand for railway signals according to the present invention;
FIG. 4 is a schematic diagram of a start-stop component in a phase failure protector test stand for railway signals according to the present invention;
FIGS. 5 and 6 are schematic diagrams of the timing of an electric stopwatch in a phase failure protector test stand for railway signals according to the present invention;
FIG. 7 is a test extension diagram of a phase failure protector test stand for railway signals according to the present invention;
FIG. 8 is a front view of a phase failure protector test stand for railway signals according to the present invention;
fig. 9 is a side view of a phase failure protector test stand for railway signals according to the present invention.
In the figure: 1. a power supply voltage regulator; 2. a voltage display unit; 3. a control switch; 4. a start stop member; 5. an electric stopwatch; 6. a phase failure protector; 7. a protective relay; 8. an output voltage display unit; 9. a coil voltage drop display part; 10. a current display unit; 11. a phase-failure switch; 12. a current regulator; 13. a three-phase load; 14. a test stand body.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The test board for the phase-failure protector for the railway signal comprises a test board main body 14, wherein a power supply voltage regulator 1, a voltage display part 2, a control switch 3, a starting and stopping part 4, an electric stopwatch 5, a phase-failure protector 6, a protection relay 7, an output voltage display part 8, a coil voltage drop display part 9, a current display part 10, a phase-failure switch 11, a current regulator 12 and a three-phase load 13 are arranged in the test board main body 14, the input end of the power supply voltage regulator 1 is connected with a three-phase power supply through a wire, the power supply voltage regulator 1, the control switch 3, the phase-failure protector 6, the current display part 10, the phase-failure switch 11, the current regulator 12 and the three-phase load 13 are sequentially connected through wires, the voltage display part 2 is connected with the output end of the power supply voltage regulator 1 through a wire, the starting and stopping part 4 and the electric stopwatch 5 are connected with the control switch 3 through wires, the two ends of the protection relay 7 are respectively connected with the electric stopwatch 5 and the phase-failure protector 6 through wires, and the output voltage display part 8 and the coil voltage drop display part 9 are connected with the phase-failure protector 6 through wires;
power supply voltage regulator 1: 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 phase failure protector for railway signals;
control switch 3: the three-phase power supply is used for controlling the on-off of three-phase power;
Electric stopwatch 5: the method is used for realizing the measurement of delay hold time, start response time and open-phase response time;
Open-phase protector 6: for providing an operating voltage for the protective relay 7;
output voltage display means 8: the phase interruption protector 6 is used for displaying the output voltage value of the railway signal;
coil voltage drop display means 9: for displaying the coil voltage drop when the phase interruption protector 6 for railway signals is in operation;
current display section 10: the device is used for measuring and displaying the working current value of the protector;
Current regulator 12: for regulating the operating current of the protector.
As shown in fig. 1-3, the power supply voltage regulator 1 and the current regulator 12 each comprise a three-phase autotransformer, a servo motor, an adjusting switch and a power supply, wherein the positive electrode and the negative electrode of the power supply are respectively connected with the adjusting switch and the servo motor through wires, the servo motor is connected with an adjusting knob of the three-phase autotransformer, the adjusting switch adopts a double-pole double-throw switch, two phases at the output end of the three-phase autotransformer are connected in parallel, and when in use, the rotating direction of the servo motor is changed through adjusting the adjusting switch, so that the forward rotation and the reverse rotation of the three-phase autotransformer are adjusted, and the adjustment of the input three-phase voltage is achieved.
As shown in figures 1-2, the voltage display part 2 and the coil voltage drop display part 9 comprise three digital display alternating current voltmeters, and the measuring ranges of the digital display alternating current voltmeters on the three voltage display parts 2 are all AC0-500V, so as to measure and display the working voltage values (AC 304-437V) of the phase interruption protector 6 for railway signals.
As shown in fig. 1-2, the measuring ranges of the digital display alternating current voltmeters on the three coil voltage drop display parts 9 are all AC0-10V, and are respectively connected in parallel to the terminals of the phase interruption protector 6 for railway signals, so as to display the coil voltage drop when the phase interruption protector 6 for railway signals works;
as shown in fig. 1-2, the output voltage display part 8 adopts three groups of digital display direct current voltmeters, the measuring ranges of the three groups of digital display direct current voltmeters are all DC0-30V, and the three groups of digital display direct current voltmeters are connected to the output end of the phase failure protector 6 or the input coil of the protection relay 7 through wires to display the output voltage value of the phase failure protector 6 for railway signals.
As shown in fig. 1-2, the control switch 3 is a control contact of a group of relays, wherein three groups of normally open contacts are connected in series between the voltage display part 2 and the phase failure protector 6 in the three-phase loop and used for controlling the on-off of three-phase power; a set of normally open contacts are connected to the electric stopwatch 5 for use as a timing condition for the electric stopwatch 5.
As shown in fig. 1-6, the current display part 10 comprises three digital display AC current meters, the measuring ranges of the three digital display AC current meters are AC0-10A, and the three digital display AC 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 values (AC 1-5A) of the protector.
As shown in fig. 1-4, the start-stop component 4 comprises a relay and two groups of switches, when the start switch is turned on, the contact of the control switch 3 is closed, and the railway signal works by using the phase interruption protector 6; when the stop switch is turned off, the contact of the control switch 3 is turned off, and the operating power supply of the phase interruption protector 6 for railway signals is cut off.
As shown in fig. 1-6, the electric stopwatch 5 comprises two millisecond timers, and the measurement of the delay hold time, the start response time and the phase failure response time is realized by collecting the conditions of the contact of the control switch 3 and the contact of the protection relay 7.
As shown in fig. 1 to 7, the phase interruption protector 6 is inserted into the relay base, and is electrically connected to an external circuit through a base wiring terminal.
As shown in fig. 1-4, the relay of the protection relay 7 and the relay of the starting and stopping component 4 are both JWJXC-1700 type relays, the terminal of the protection relay 7 is connected with the terminal of the open-phase protector 6, and the power supply voltage of the open-phase protector 6 for receiving railway signals; one of the closing 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 phase interruption switch 11 comprises three independent push-button switches, the three push-button switches are connected in series between the current display part 10 and the current regulator 12 in the three-phase loop, and after the protector works, the protector can be disconnected respectively, and the phase interruption output voltage is measured through the output voltage display meter.
As shown in fig. 1-2, the three-phase load 13 comprises three 100 Ω/1000W winding resistors connected in a star connection, and the three-phase load 13 and the current regulator 12 together serve as the working load of the phase interruption protector 6 for railway signals.
As shown in fig. 8-9, a sliding wheel is mounted at the bottom of the test board main body 14, so that the test board can be moved conveniently when high-low temperature and electromagnetic compatibility environment test is required.
When the test board for the phase-failure protector for the railway signal is used, as shown in fig. 1-2, after the control switch 3 is closed, a three-phase power supply passes through the power supply voltage regulator 1, the control switch 3, the phase-failure protector 6, the current display part 10, the phase-failure switch 11 and the current regulator 12, and finally flows through the three-phase load 13, the phase-failure protector 6 starts to work, and at the moment, the voltage display part 2 displays the working voltage of the phase-failure protector 6 for the railway signal; the current display part 10 displays the working current of the phase interruption protector 6 for railway signals, and the coil voltage drop display part 9 displays the coil voltage drop of the phase interruption protector 6 for railway signals; the output voltage display part 8 displays the output voltage of the open-phase protector 6 for railway signals, any open-phase switch 11 is opened, the open-phase protector 6 for railway signals stops outputting, and the output voltage display part 8 displays the open-phase output voltage at the moment;
when the power supply voltage regulator is used, as shown in fig. 3, the rotating mechanical part of the servo motor in the power supply voltage regulator 1 is connected with the rotating shaft of the voltage regulator, and the regulating switch is arranged on the left side or the right side, so that the servo motor can rotate clockwise or anticlockwise, and the forward or reverse regulation of the voltage regulator is realized, thereby playing a role in regulating the three-phase voltage value and the three-phase current value, and enabling the phase-failure protector 6 for railway signals to work in the needed 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 one group of normally open contacts of the protection relay 7 in parallel, the starting switch is pressed, the relay is sucked, all normally open contacts are closed, so that the control switch 3 is closed, the phase-failure protector 6 for railway signals works, the phase-failure protector 6 for railway signals outputs direct-current voltage, the protection relay 7 is driven to suck, after the starting switch is released, the contacts of the protection relay 7 are closed, the relay is kept to suck, so that the continuous power supply work of the phase-failure protector 6 for railway signals is maintained, after the stopping switch is pressed, the relay loses electricity and falls, the normally open contacts of the relay are opened, and the phase-failure protector 6 for railway signals loses electricity and stops working;
When the phase-failure protector is used, as shown in fig. 5 and 6, the relay 7 is arranged below the protection relay 7, after the start switch of fig. 4 is pressed, the phase-failure protector 6 for railway signals starts to work, direct-current voltage is output to drive the protection relay 7 to be attracted, at the moment, a normally open contact is closed, a time-limited stopwatch uses one group of normally open contacts for timing, after the normally open contact is closed, the time-limited stopwatch starts timing, after a certain time is reached, the phase-failure protector 6 for railway signals stops working, the normally open contact of the protection relay 7 is disconnected, the time-limited stopwatch stops timing, and at the moment, the reading of the time-limited stopwatch is the time-delayed holding time; after the starting switch shown in fig. 4 is pressed, a relay is attracted, one group of the group contacts are closed, a start/stop stopwatch starts to count time, after the railway signal works by the phase-failure protector 6, the protection relay 7 is driven to attract, one group of normally open contacts are closed, the start/stop stopwatch stops counting time, and at the moment, the reading of the start/stop stopwatch is the corresponding starting time of the phase-failure protector 6 for the railway signal; after the phase-failure protector 6 for railway signals works, the stop switch of the figure 4 is turned off, the relay is turned off, the contact of the relay is turned off, the start/phase-failure stopwatch starts to count time, the control switch 3 of the figure 2 is turned off due to the fact that the relay is turned off, the phase-failure protector 6 for railway signals stops working, the protection relay 7 is turned off, the contact of the protection relay 7 is turned off, the start/phase-failure stopwatch stops counting time, and at the moment, the reading of the start/phase-failure stopwatch is the phase-failure response time of the phase-failure protector 6 for railway signals;
When the device is used, as shown in fig. 7, the phase-failure protector 6 for railway signals is inserted into the relay socket, the base of the phase-failure protector 6 for railway signals is inserted into the position of the phase-failure protector 6 for railway signals of the test bed, and the phase-failure protector 6 for railway signals and the relay socket are placed at 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 the test bench is used, as shown in fig. 8 and 9, the bottom of the test bench is provided with the sliding wheel, and when high-low temperature and electromagnetic compatibility environment test is required, the test bench is convenient to move;
When the sliding rheostat is used, the autotransformer and the fixed load are adopted to adjust the current, so that the problem that the sliding rheostat is not beneficial to adjustment when being used as the load is solved;
when the automatic voltage regulator is used, the rotation direction of the servo motor is controlled through the switch, so that the automatic transformer is regulated, and the voltage and current regulation is convenient;
when the test bench is used, the sliding wheels are arranged on the test bench and the load box, so that the test bench is convenient to move and is convenient for testing requirements of different sites such as high-temperature tests, low-temperature tests and electromagnetic compatibility tests;
When the phase failure protector is used, the phase failure protector 6 for railway signals can be directly inserted on a test bench, and also can be inserted on the test bench through an extension line, so that high-low temperature environment test is convenient;
When the phase-failure protector is used, 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 is enabled to work in the voltage and current range of AC304-437V/AC1A-5A through the adjustment of the power supply voltage regulator 1 and the current regulator 12, and the technical parameters of the protector are measured through 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 electrical 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 open-phase protector 6 for the railway signal, open-phase protector 6 for the railway signal is pegged graft at the extension line other end, place open-phase protector 6 for the railway signal in the environment incasement or place in the electromagnetic compatibility environment, the auxiliary completion open-phase protector 6 for the railway signal high low temperature performance test 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 grasps the quality situation of open-phase protector for the railway signal, moreover the structure of whole open-phase protector test board for the railway signal is simple, and the operation is more convenient, the result of use is better for traditional mode, satisfy people's operation requirement, it is comparatively practical.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a railway signal is with open-phase protector testboard, includes testboard main part (14), its characterized in that: the inside of the test bench main body (14) is provided with a power supply voltage regulator (1), a voltage display part (2), a control switch (3), a starting and stopping part (4), an electric stopwatch (5), a phase interruption protector (6), a protection relay (7), an output voltage display part (8), a coil voltage drop display part (9), a current display part (10), a phase interruption switch (11), a current regulator (12) and a three-phase load (13), the input end of the power supply voltage regulator (1) is connected with a three-phase power supply through a wire, the power supply voltage regulator (1), the control switch (3), the phase interruption protector (6), the current display part (10), the phase interruption switch (11), the current regulator (12) and the three-phase load (13) are sequentially connected through wires, the voltage display part (2) is connected with the output end of the power supply voltage regulator (1) through wires, the starting and stopping part (4) and the electric stopwatch (5) are connected with the control switch (3) through wires, the two ends of the protection relay (7) are respectively connected with the electric stopwatch (5) and the phase interruption protector (6) through wires, the output voltage display part (8) and the coil voltage drop display part (9) are connected with the phase failure protector (6) through leads;
the power supply voltage regulator (1) is used for regulating input three-phase voltage;
The voltage display component (2) is used for measuring and displaying the working voltage value of the phase failure protector (6) for railway signals;
the control switch (3) is used for controlling the on-off of three-phase electricity;
The electric stopwatch (5) is used for realizing the measurement of delay hold time, start response time and open-phase response time;
The open-phase protector (6) is used for providing working voltage for the protection relay (7);
the output voltage display part (8) is used for displaying the output voltage value of the phase failure protector (6) for railway signals;
the coil voltage drop display component (9) is used for displaying the coil voltage drop when the phase interruption protector (6) for railway signals works;
the current display component (10) is used for measuring and displaying the working current value of the protector;
The current regulator (12) is used for regulating the working current of the protector;
the power supply voltage regulator (1) and the current regulator (12) comprise a three-phase autotransformer, a servo motor, an adjusting switch and a power supply, wherein the positive electrode and the negative electrode of the power supply are respectively connected with the adjusting switch and the servo motor through wires, the servo motor is connected with an adjusting knob of the three-phase autotransformer, the adjusting switch adopts a double-pole double-throw switch, and the two phases of the output end of the three-phase autotransformer are connected in parallel;
The voltage display part (2) and the coil voltage drop display part (9) comprise three digital display alternating current voltmeters, the measuring ranges of the three digital display alternating current voltmeters on the voltage display part (2) are ACO-500V, the measuring ranges of the three digital display alternating current voltmeters on the coil voltage drop display part (9) are ACO-10V, the output voltage display part (8) adopts three groups of digital display direct current voltmeters, and the measuring ranges of the three groups of digital display direct current voltmeters are DCO-30V;
The current display component (10) comprises three digital display alternating current ammeter, and the measuring ranges of the three digital display alternating current ammeter are ACO-10A;
the start stop component (4) comprises a relay and two groups of switches.
2. The phase failure protector test stand for railway signals according to claim 1, wherein: the electric stopwatch (5) comprises a two millisecond timer.
3. The phase failure protector test stand for railway signals according to claim 1, wherein: the phase failure protector (6) is inserted on the relay base.
4. The phase failure protector test stand for railway signals according to claim 1, wherein: the relay of the protection relay (7) and the relay of the starting and stopping component (4) are both JWJXC-1700 type relays.
5. The phase failure protector test stand for railway signals according to claim 1, wherein: the phase interruption switch (11) comprises three groups of independent push-button switches which are connected in series between a current display component (10) and a current regulator (12) in a three-phase loop.
6. The phase failure protector test stand for railway signals according to claim 1, wherein: the three-phase load (13) comprises three 100 omega/1000W winding resistors, and the three winding resistors are connected in a star connection mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910533713.7A CN110095717B (en) | 2019-06-19 | 2019-06-19 | Phase failure protector test board for railway signals |
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|---|---|---|---|
| CN201910533713.7A CN110095717B (en) | 2019-06-19 | 2019-06-19 | Phase failure protector test board for railway signals |
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| CN110095717B true CN110095717B (en) | 2024-06-04 |
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| CN110571764B (en) * | 2019-09-30 | 2024-06-11 | 江苏省特种设备安全监督检验研究院 | Automatic switching device for power supply during inspection of phase failure and phase failure protection function of crane |
| CN112329194B (en) * | 2020-07-01 | 2022-04-22 | 河北工业大学 | Railway signal relay effective time parameter determination method based on mathematical model |
| CN115078858A (en) * | 2021-03-11 | 2022-09-20 | 上海地铁维护保障有限公司 | Switch protector detection device |
| CN113738548B (en) * | 2021-07-27 | 2022-06-03 | 东风汽车集团股份有限公司 | High-pressure oil rail pressure control method and system after failure of air inlet phase sensor |
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| US5825599A (en) * | 1997-05-05 | 1998-10-20 | Leviton Manufacturing Co., Inc. | Ground fault circuit interrupter system with uncommitted contacts |
| CN1544955A (en) * | 2003-11-25 | 2004-11-10 | 郭贤珊 | Comprehensive test instrument of electric system primary cut out |
| CN102981120A (en) * | 2012-11-15 | 2013-03-20 | 中国电力科学研究院 | Full-performance detecting system of magnetic latching relay and detecting method thereof |
| CN202815583U (en) * | 2012-09-05 | 2013-03-20 | 魏显东 | Soft start comprehensive control protector test board |
| KR20130002654U (en) * | 2011-10-25 | 2013-05-03 | 한국철도공사 | Tester for DC over current relay of railway substation |
| CN210639248U (en) * | 2019-06-19 | 2020-05-29 | 中铁检验认证中心有限公司 | Railway signal is with open-phase protector testboard |
-
2019
- 2019-06-19 CN CN201910533713.7A patent/CN110095717B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5825599A (en) * | 1997-05-05 | 1998-10-20 | Leviton Manufacturing Co., Inc. | Ground fault circuit interrupter system with uncommitted contacts |
| CN1544955A (en) * | 2003-11-25 | 2004-11-10 | 郭贤珊 | Comprehensive test instrument of electric system primary cut out |
| KR20130002654U (en) * | 2011-10-25 | 2013-05-03 | 한국철도공사 | Tester for DC over current relay of railway substation |
| CN202815583U (en) * | 2012-09-05 | 2013-03-20 | 魏显东 | Soft start comprehensive control protector test board |
| CN102981120A (en) * | 2012-11-15 | 2013-03-20 | 中国电力科学研究院 | Full-performance detecting system of magnetic latching relay and detecting method thereof |
| CN210639248U (en) * | 2019-06-19 | 2020-05-29 | 中铁检验认证中心有限公司 | Railway signal is with open-phase protector testboard |
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| Publication number | Publication date |
|---|---|
| CN110095717A (en) | 2019-08-06 |
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