CN216981806U - Debugging table for debugging thyristor in steel rail potential limiting device - Google Patents
Debugging table for debugging thyristor in steel rail potential limiting device Download PDFInfo
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- CN216981806U CN216981806U CN202123441954.0U CN202123441954U CN216981806U CN 216981806 U CN216981806 U CN 216981806U CN 202123441954 U CN202123441954 U CN 202123441954U CN 216981806 U CN216981806 U CN 216981806U
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Abstract
The utility model relates to a debugging platform for debugging a thyristor in a steel rail potential limiting device, which comprises an alternating current power supply part, an alternating current voltage regulator, a rectification filter module, a direct current measuring module, a power indicator lamp and a current limiting resistor module, wherein the alternating current power supply part is connected with the rectification filter module; the alternating current power supply provides power, after the alternating current voltage regulator and the rectification filter module perform boosting rectification, and after the thyristor is conducted, the current limiting resistance module absorbs the current after the conduction of the positive electrode and the negative electrode. The debugging platform for debugging the thyristor in the steel rail potential limiting device adopts the rectifier tube and the voltage regulator to output direct-current high voltage, the voltmeter is added between the positive pole and the negative pole of the output power supply to measure the output voltage, and the high-power resistor is connected in series at the positive pole to absorb the current between the positive pole and the negative pole after the thyristor is conducted. The utility model protects the debugging equipment and prevents the debugging equipment from being burnt by short-circuit current generated by the conduction of the thyristor during debugging.
Description
Technical Field
The utility model relates to a debugging table of a thyristor, in particular to a debugging table which is used for debugging the thyristor in a steel rail potential limiting device and can not burn out debugging equipment due to short-circuit current generated by conduction of the thyristor during debugging.
Background
The power supply provided by the existing debugging equipment is an adjustable power supply which can only provide DC700V, the passing current cannot be detected, short-circuit protection is carried out only through slight interruption at the output end, when the voltage reaches the trigger voltage of the thyristor, the thyristor is conducted, and direct short circuit is carried out, so that the existing debugging equipment cannot carry out thyristor debugging.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, a primary object of the present invention is to provide a debugging platform for debugging a thyristor in a rail potential limiting device, which does not burn out a debugging device due to a short-circuit current generated when the thyristor is turned on during debugging.
The utility model solves the technical problems through the following technical scheme: a debugging platform for debugging a thyristor in a steel rail potential limiting device comprises:
the device comprises an alternating current power supply part, an alternating current voltage regulator, a rectification filtering module, a direct current measuring module, a power indicator lamp and a current limiting resistor module.
The alternating current power supply provides power, after the alternating current voltage regulator and the rectification filter module carry out boosting rectification, and after the thyristor is conducted, the current limiting resistance module absorbs the current after the positive electrode and the negative electrode are conducted.
In the embodiment of the utility model, the power supply enters the switch of the main power supply through a plug connection terminal, the output end of the switch is connected to the input end of a transformer T0 through a cable, the single-pole 220V alternating current is converted into a three-pole 250V alternating current power supply through an electromagnetic induction principle and a middle tap, phase lines and zero lines of the three-pole power supply respectively enter three alternating current inlet ends of rectifier modules ZLQ 01-ZLQ 03, after being rectified by three rectifiers ZLQ diodes, the anode and the cathode of the three alternating current inlet ends are connected in parallel with three 47 kilo-ohms, the two ends of 2W voltage-sharing resistors R1-R3 are connected in parallel with a filter capacitor of 470uF and 450V, the anode of the filter capacitor is connected in parallel with a protective diode V4 for preventing back electromotive force, the cathode of the diode V4 is connected with four current-limiting resistors R4-R7 of 150 ohms and 150W, the current-limiting resistors R6 and R7 are respectively connected in parallel with a short-circuit switch of 1A for short-circuiting R6 and R7, and finally the current meter PA are connected, and a voltmeter PV is directly connected in parallel with the negative output end of the rectifier and the negative output end of the ammeter.
In an embodiment of the utility model, the current limiting resistance module is a plurality of current limiting resistances connected in series.
In an embodiment of the utility model, the current limiting resistance module is four current limiting resistances of 150 ohms and 150W connected in series.
The positive progress effects of the utility model are as follows: the debugging platform for debugging the thyristor in the steel rail potential limiting device adopts the rectifier tube and the voltage regulator to output direct-current high voltage, the voltmeter is added between the positive pole and the negative pole of the output power supply to measure the output voltage, and the high-power resistor is connected in series at the positive pole to absorb the current between the positive pole and the negative pole after the thyristor is conducted.
The utility model protects the debugging equipment and prevents the debugging equipment from being burnt by short-circuit current generated by the conduction of the thyristor during debugging.
Drawings
Fig. 1 is a schematic diagram of the voltage regulation, rectification and current limiting principle of the present invention.
Fig. 2 is a schematic diagram of the various status indicator light principles of the present invention.
Detailed Description
The following provides a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of the voltage regulation, rectification and current limiting principle of the present invention. Fig. 2 is a schematic diagram of the various status indicator light principles of the present invention. As shown in fig. 1-2: the utility model provides a debugging platform for debugging a thyristor in a steel rail potential limiting device, which comprises an alternating current power supply part, an alternating current voltage regulator, a rectification filter module, a direct current measuring module, a power indicator lamp and a current limiting resistor module, wherein the alternating current power supply part is connected with the rectification filter module; the alternating current power supply provides power, after the alternating current voltage regulator and the rectification filter module perform boosting rectification, and after the thyristor is conducted, the current limiting resistance module absorbs the current after the conduction of the positive electrode and the negative electrode.
Fig. 1 is a schematic diagram of the voltage-regulating, rectifying and current-limiting principle of the present invention, and as shown in fig. 1, the principle of providing an adjustable voltage of up to 750V dc by connecting an ac voltage regulator and a rectifying filter in parallel and absorbing current by a resistor is adopted.
In fig. 1, a power supply enters a switch of a main power supply through a plug connection terminal, a single-pole 220V alternating current is connected to an input end of a transformer T0 through a cable at a switch output end, the single-pole 220V alternating current is converted into a three-pole 250V alternating current power supply through an electromagnetic induction principle and a middle tap, phase lines and zero lines of the three-pole power supply respectively enter three alternating current inlet ends of rectifier modules ZLQ 01-ZLQ 03, after being rectified by three rectifier ZLQ diodes, a positive electrode and a negative electrode are connected in parallel with three 47 kilo-ohms, a filter capacitor of 470uF and 450V is connected in parallel after two ends of a 2W voltage-sharing resistor R1-R3, a protection diode V4 for preventing back-potential is connected at a positive electrode, four current-limiting resistors R4-R7 of 150 ohms and 150W are connected at a negative electrode of the diode V4, a short-circuit switch of 1A short circuit is respectively connected in parallel with the current limiting resistors R6 and R7 for short-circuiting R6 and R7, and finally an ammeter PA is connected, and a voltmeter PV is directly connected in parallel with the negative output end of the rectifier and the negative output end of the ammeter.
The current limiting resistor module in the utility model is a plurality of current limiting resistors connected in series, and in a specific implementation process, the current limiting resistor module can be four current limiting resistors of 150 ohms and 150W connected in series in fig. 1.
The specific operation mode of the utility model is as follows:
a. after the thyristor is connected between 510 and 504 as shown in fig. 1, the dc output voltage between 510 and 504 is regulated to about 120V (the positive and negative poles are arbitrary), and at this time, the critical conduction state of the thyristor is reached, and the generation of small current can be observed in the ammeter. And continuously increasing the voltage, and ensuring that the current in the conduction loop of the thyristor is greater than 0.5A, the thyristor can be fully conducted at the moment that the voltmeter displays 100V, the voltmeter returns to zero, and the display reading of the ammeter is approximately about 0.5A.
b. After the output voltage returns to zero, the thyristor is turned off again, and the reading of the ammeter returns to zero. When the whole on-off process is finished, if an accurate numerical value is needed, the digital meter can be used for self-measurement at the corresponding terminal position.
Fig. 2 is a schematic diagram of the various status indicator light principles of the present invention. As shown in fig. 2, the power state and the on state of each current limiting resistor are indicated in fig. 2, and when Q1 is in the on state, the auxiliary contact is turned on through FU1 to turn on the red HR1 indicator light of AC 220V; similarly, the red HR2 light of AC220V may be illuminated when Q2 is on. When the main circuit is switched on when the QF is switched on, the 101 # line and the 102 # line are electrified AC220V red indicator light HR3 is lightened.
The debugging platform for debugging the thyristor in the steel rail potential limiting device adopts the rectifier tube and the voltage regulator to output direct-current high voltage, the voltmeter is added between the positive pole and the negative pole of the output power supply to measure the output voltage, and the high-power resistor is connected in series at the positive pole to absorb the current between the positive pole and the negative pole after the thyristor is conducted.
The utility model protects the debugging equipment, and the debugging equipment is not burnt by short-circuit current generated by the conduction of the thyristor during debugging.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined by the appended claims and their equivalents.
Claims (4)
1. The utility model provides a debug platform for debugging thyristor in rail potential limiting device which characterized in that: the debugging platform for debugging thyristor in rail potential limiting device includes:
the device comprises an alternating current power supply part, an alternating current voltage regulator, a rectification filtering module, a direct current measuring module, a power indicator lamp and a current limiting resistor module;
the alternating current power supply provides power, after the alternating current voltage regulator and the rectification filter module perform boosting rectification, and after the thyristor is conducted, the current limiting resistance module absorbs the current after the conduction of the positive electrode and the negative electrode.
2. The debugging table for debugging thyristors in a steel rail potential limiting device according to claim 1, wherein: the power supply enters the switch of the main power supply through the plug connection terminal, the output end of the switch is connected to the input end of the transformer T0 through a cable, the single-pole 220V alternating current is converted into a three-pole 250V alternating current power supply through an electromagnetic induction principle and a middle tap, the phase line and the zero line of the three-pole power supply respectively enter three alternating current inlet ends of rectifier modules ZLQ 01-ZLQ 03, after being rectified by three rectifiers ZLQ diodes, the anode and the cathode are connected in parallel behind two ends of three 47 kiloohm 2W voltage-sharing resistors R1-R3 and then are connected in parallel into 470uF and 450V filter capacitors, the anode is connected with a protective diode V4 for preventing back electromotive force, the negative electrode of the diode V4 is connected with four current-limiting resistors R4-R7 of 150 ohms and 150W, A1A short-circuit switch is respectively connected in parallel with the current-limiting resistors R6 and R7 to short-circuit the resistors R6 and R7, and finally, the current-limiting resistors are connected to an ammeter PA, and a voltmeter PV is directly connected in parallel with the negative output end of the rectifier and the negative output end of the ammeter.
3. The debugging table for debugging thyristors in a steel rail potential limiting device according to claim 1, wherein: the current limiting resistance module is a plurality of current limiting resistances connected in series.
4. The debugging table for debugging thyristors in a steel rail potential limiting device according to claim 1, wherein: the current limiting resistance module is four current limiting resistances of 150 ohms and 150W connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123441954.0U CN216981806U (en) | 2021-12-31 | 2021-12-31 | Debugging table for debugging thyristor in steel rail potential limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123441954.0U CN216981806U (en) | 2021-12-31 | 2021-12-31 | Debugging table for debugging thyristor in steel rail potential limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216981806U true CN216981806U (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123441954.0U Active CN216981806U (en) | 2021-12-31 | 2021-12-31 | Debugging table for debugging thyristor in steel rail potential limiting device |
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| CN (1) | CN216981806U (en) |
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2021
- 2021-12-31 CN CN202123441954.0U patent/CN216981806U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zheng Xiaowei Inventor after: Yao Diqing Inventor before: Zhang Xiaowei Inventor before: Yao Diqing |
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| CB03 | Change of inventor or designer information |