CN214622949U - Testing arrangement suitable for direct current breaker with electronic control board - Google Patents
Testing arrangement suitable for direct current breaker with electronic control board Download PDFInfo
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- CN214622949U CN214622949U CN202120313446.5U CN202120313446U CN214622949U CN 214622949 U CN214622949 U CN 214622949U CN 202120313446 U CN202120313446 U CN 202120313446U CN 214622949 U CN214622949 U CN 214622949U
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Abstract
The utility model discloses a testing arrangement suitable for direct current breaker with electronic control board, include: a power supply module; the input end of the bridge rectifier module is connected with the first output end of the power supply module; the input end of the power converter is connected with the second output end of the power module; the first input end of the control unit is connected with the output end of the bridge rectifier module through a closing switch, the second input end of the control unit is connected with the first output end of the power converter through a separating switch, the third input end of the control unit is connected with the second output end of the power converter through a fault tripping switch, the first output end of the control unit is connected with the direct current circuit breaker, and the second output end of the control unit is connected with the direct current circuit breaker through a capacitor module. This utility model provides a loaded down with trivial details and the inefficiency problem of traditional direct current circuit breaker failure test, through control power supply, realize functions such as divide-shut brake, trouble dropout, auxiliary contact and newly detect, saved check-out time effectively, improved work efficiency.
Description
Technical Field
The utility model relates to a power supply system technical field, concretely relates to testing arrangement suitable for direct current breaker with electronic control board.
Background
The direct current circuit breakers of No. 3 and No. 4 wires of Shanghai subway are important components of a 1500V power supply system, 1500V direct current generated by a rectifier cabinet is distributed to a net touching knife switch and a contact net through the direct current circuit breakers, and finally returns to the rectifier cabinet to form a power supply loop through a subway train from a steel rail to a negative pole knife switch, so that electric power required by normal operation of the subway train is ensured. Whether the dc breaker can work normally is the key.
In the actual use, when direct current breaker broke down, can directly change reserve direct current breaker, but can have following several problems:
1) the fault direct current circuit breaker is placed outside, and has no control power supply or working power supply, so that operation detection cannot be carried out;
2) if the auxiliary contact of the direct current breaker fails, all the contacts cannot be monitored simultaneously to judge a failure point;
3) no. 3 line, No. 4 line direct current circuit breaker are the circuit breaker of electrified sub-control board, and there is the difference in its mode of operation.
Based on the above, in order to judge the fault of the dc breaker better and timely, the whole maintenance detection method must be improved, so that the detection of the dc breaker becomes quick and effective. Therefore, at present, it is urgently needed to provide a detection tool for a dc circuit breaker with an electronic control board in Shanghai subway, which can help workers to quickly and conveniently judge faults and can also detect a repaired dc circuit breaker.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a testing arrangement suitable for direct current breaker with electronic control board. The testing device aims to solve the problems of complex fault testing and low efficiency of the traditional direct current circuit breaker, and realizes new detection of functions such as opening and closing, fault tripping and auxiliary contacts by controlling a power supply, so that the detection time is effectively saved, and the working efficiency is improved.
In order to achieve the above object, the utility model provides a testing arrangement suitable for direct current breaker with electronic control board, include:
a power module providing a first voltage;
the input end of the bridge rectifier module is connected with the first output end of the power supply module and converts the first voltage into a second voltage;
the input end of the power converter is connected with the second output end of the power module and converts the first voltage into a third voltage;
the first input end of the control unit is connected with the output end of the bridge rectifier module through a closing switch, the second input end of the control unit is connected with the first output end of the power converter through a separating switch, the third input end of the control unit is connected with the second output end of the power converter through a fault tripping switch, the first output end of the control unit is connected with the direct current circuit breaker, and the second output end of the control unit is connected with the direct current circuit breaker through a capacitor module;
when a worker tests the switching-on function of the direct current circuit breaker, the switching-on switch is switched on, and the switching-off switch and the fault tripping switch are switched off; the power supply module provides a second voltage for the control unit through the bridge rectifier module, and the control unit receives the second voltage and sends a closing signal; transmitting a closing signal to a direct current breaker to perform closing control test; the method comprises the following steps that a worker judges whether the switching-on function of the direct current breaker breaks down or not according to whether the direct current breaker is switched on or not;
when a worker tests the opening function of the direct current circuit breaker, the opening switch is switched on, and the closing switch and the fault tripping switch are switched off; the power supply module provides a third voltage for the control unit through the power converter, and the control unit receives the third voltage, sends a brake-separating signal and transmits the brake-separating signal to the direct-current circuit breaker to perform a brake-separating control test; the working personnel judge whether the opening function of the direct current breaker breaks down or not according to whether the direct current breaker is opened or not;
when a worker tests the tripping function of the direct current breaker, the fault tripping switch is switched on, and the closing switch and the opening switch are switched off; the power supply module provides a third voltage for the control unit through the power supply converter, and the control unit receives the third voltage, sends a trip signal according to the capacitor module, transmits the trip signal to the direct current breaker and performs a trip control test; the method comprises the following steps that a worker judges whether a tripping function of the direct current breaker breaks down or not according to whether the direct current breaker trips or not;
the testing device tests the switching-on function, the switching-off function and the tripping function of the direct current circuit breaker on the three branches respectively to judge whether the switching-on function, the switching-off function and the tripping function of the direct current circuit breaker have faults or not, and then the testing of the direct current circuit breaker is completed.
Most preferably, the test device further comprises: and the indicating lamp is connected with the fourth output end of the control unit, judges whether the direct current breaker has a fault or not according to the control unit, and correspondingly lights up or extinguishes the indicating lamp.
Most preferably, the indicator light further comprises: closing indicator light, separating brake indicator light and a mouth-off ready light.
Most preferably, the first voltage is an alternating voltage of 220V.
Most preferably, the second voltage is a 220V dc voltage.
Most preferably, the third voltage is a 24V dc voltage.
The application of the utility model discloses, solved the loaded down with trivial details and the inefficiency problem of traditional direct current circuit breaker failure test, through control power supply, realize functions such as divide-shut brake, trouble dropout, auxiliary contact and newly detect, saved check-out time effectively, improved work efficiency.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a testing arrangement, simple structure is small and exquisite, and convenient to use can be directly to withdrawing from the direct current circuit breaker outside of operation provide control power supply and working power supply to carry out functions such as divide-shut brake, trouble dropout, auxiliary contact and newly detect, consequently, save check-out time effectively, improve work efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the testing device provided by the present invention.
Detailed Description
The present invention will be further described with reference to the following embodiments, which are only used for illustrating the present invention and are not intended to limit the scope of the present invention.
The utility model relates to a testing arrangement suitable for direct current breaker with electronic control panel, this direct current breaker K includes two kinds of connected modes of decompression and shunt excitation, and this direct current breaker K selects the mode of two kinds of direct current breaker of decompression or shunt excitation through the electronic control panel; in this embodiment, the voltage of the dc breaker K is 1500V.
As shown in fig. 1, the test apparatus includes: the power supply comprises a power supply module 1, a bridge rectifier module 2, a power converter 3, a control unit 4, a closing switch S1, an opening switch S2, a fault tripping switch S3 and a capacitor module 5.
A power module 1 for providing a first voltage; wherein the first voltage is 220V alternating voltage;
the input end of the bridge rectifier module 2 is connected with the first output end of the power supply module 1, and the first voltage is converted into a second voltage; the second voltage is 220V direct current voltage;
the input end of the power converter 3 is connected with the second output end of the power module 1, and the first voltage is converted into a third voltage; wherein the third voltage is 24V DC voltage;
a control unit 4, a first input end of which is connected with an output end of the bridge rectifier module 2 through a closing switch S1, a second input end of which is connected with a first output end of the power converter 3 through an opening switch S2, a third input end of which is connected with a second output end of the power converter 3 through a fault tripping switch S3, a first output end of which is connected with an electronic control board built in the dc circuit breaker K, and a second output end of which is connected with the electronic control board built in the dc circuit breaker K through a capacitor module 5;
the bridge rectifier module 2, the closing switch S1, the control unit 4, and the dc circuit breaker K form a first branch; the power converter 3, the opening switch S2, the control unit 4 and the direct-current breaker K form a second branch circuit; the power converter 3, the fault trip switch S3, the control unit 4, the capacitor module 5, and the dc breaker K form a third branch.
When a worker tests the switching-on function of the direct current circuit breaker K, the switching-on switch S1 is switched on, the switching-off switch S2 and the fault tripping switch S3 are switched off, the first branch is switched on, and the second branch and the third branch are switched off; the power supply module 1 provides a second voltage for the control unit 4 through the bridge rectifier module 2, and the control unit 4 receives the second voltage and sends a closing signal; transmitting a closing signal to an electronic control board built in the direct current breaker K to perform closing control test; the working personnel judge whether the switching-on function of the direct current breaker K breaks down or not according to whether the direct current breaker K is switched on or not;
in the embodiment, the closing signal is transmitted to x202:4 and x202:5 of the electronic control board built in the dc breaker K.
When a worker tests the opening function of the direct current breaker K, the opening switch S2 is switched on, the closing switch S1 and the fault tripping switch S3 are switched off, the second branch is switched on, and the first branch and the third branch are switched off; the power supply module 1 provides a third voltage for the control unit 4 through the power converter 3, and the control unit 4 receives the third voltage, sends a brake-off signal, transmits the brake-off signal to an electronic control board arranged in the direct current circuit breaker K and performs a brake-off control test; the working personnel judge whether the opening function of the direct current breaker K breaks down or not according to whether the direct current breaker K is opened or not;
in the embodiment, the electronic control board built in the dc breaker K receives the opening signal, short-circuits x202:8 and x202:9 of the electronic control board according to the two modes of voltage loss and opening, and transmits the short-circuits to x202:6 and x202:7 of the electronic control board built in the dc breaker K.
When a worker tests the tripping function of the direct current breaker K, the fault tripping switch S3 is switched on, the closing switch S1 and the opening switch S2 are switched off, the third branch is switched on, and the first branch and the second branch are switched off; the power supply module 1 provides a third voltage for the control unit 4 through the power supply converter 3, and the control unit 4 receives the third voltage, sends a trip signal according to a capacitance plate built in the capacitance module 5, transmits the trip signal to an electronic control board built in the direct current circuit breaker K through a third branch circuit, and performs a trip control test; the method comprises the following steps that a worker judges whether the tripping function of a direct current breaker K breaks down or not according to whether the direct current breaker K trips or not;
in the embodiment, the trip signal is transmitted to x202:10 and x202:11 of the electronic control board built in the dc breaker K.
The testing device tests the switching-on function, the switching-off function and the tripping function of the direct current circuit breaker K on the three branches respectively to judge whether the switching-on function, the switching-off function and the tripping function of the direct current circuit breaker K have faults or not, and then the testing of the direct current circuit breaker K is completed.
The test device further comprises: and the indicating lamp 6 is connected with the fourth output end of the control unit 4, and the corresponding indicating lamp 6 is turned on or turned off according to whether the tested direct current breaker K breaks down or not controlled by the three branches of the control unit 4.
In the present embodiment, the indicator lamp 6 further includes: closing an emergency light, separating brake pilot lamp and taking off a mouthful ready lamp, the staff observes closing an emergency light, separating brake pilot lamp and takes off the change condition of mouthful ready lamp, can judge whether this direct current circuit breaker K inside auxiliary contact breaks down.
The utility model discloses a theory of operation:
the closing switch is switched on, the opening switch and the fault tripping switch are switched off, the first branch is switched on, and the second branch and the third branch are switched off; the power supply module provides a second voltage for the control unit through the bridge rectifier module, and the control unit receives the second voltage and sends a closing signal; transmitting a closing signal to a direct current breaker to perform closing control test; the method comprises the following steps that a worker judges whether the switching-on function of the direct current breaker breaks down or not according to whether the direct current breaker is switched on or not;
the opening switch is switched on, the closing switch and the fault tripping switch are switched off, the second branch is switched on, and the first branch and the third branch are switched off; the power supply module provides a third voltage for the control unit through the power converter, and the control unit receives the third voltage, sends a brake-separating signal and transmits the brake-separating signal to the direct-current circuit breaker to perform a brake-separating control test; the working personnel judge whether the opening function of the direct current breaker breaks down or not according to whether the direct current breaker is opened or not;
the fault tripping switch is switched on, the closing switch and the opening switch are switched off, the third branch is switched on, and the first branch and the second branch are switched off; the power supply module provides a third voltage for the control unit through the power supply converter, and the control unit receives the third voltage, sends a trip signal according to a capacitor plate arranged in the capacitor module, transmits the trip signal to the direct current circuit breaker through a third branch circuit and performs a trip control test; the method comprises the following steps that a worker judges whether a tripping function of the direct current breaker breaks down or not according to whether the direct current breaker trips or not;
the testing device tests the switching-on function, the switching-off function and the tripping function of the direct current circuit breaker on the three branches respectively to judge whether the switching-on function, the switching-off function and the tripping function of the direct current circuit breaker have faults or not, and then the testing of the direct current circuit breaker is completed.
To sum up, the utility model relates to a testing arrangement suitable for direct current circuit breaker with electronic control board has solved the loaded down with trivial details and problem of inefficiency of traditional direct current circuit breaker fault test, through control power supply, realizes functions such as divide-shut brake, trouble dropout, auxiliary contact and newly detects, has saved check-out time effectively, has improved work efficiency.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (6)
1. A testing apparatus adapted for use with a dc circuit breaker having an electronic control board, comprising:
a power module providing a first voltage;
the input end of the bridge rectifier module is connected with the first output end of the power supply module and converts the first voltage into a second voltage;
the input end of the power converter is connected with the second output end of the power module and converts the first voltage into a third voltage;
the first input end of the control unit is connected with the output end of the bridge rectifier module through a closing switch, the second input end of the control unit is connected with the first output end of the power converter through an opening switch, the third input end of the control unit is connected with the second output end of the power converter through a fault tripping switch, the first output end of the control unit is connected with the direct current circuit breaker, and the second output end of the control unit is connected with the direct current circuit breaker through a capacitor module;
when the switching-on function of the direct current circuit breaker is tested, the switching-on switch is switched on, and the switching-off switch and the fault tripping switch are switched off; the power supply module provides the second voltage for the control unit through the bridge rectifier module, and the control unit sends a closing signal and transmits the closing signal to the direct current breaker to perform a closing control test; judging whether the switching-on function of the direct-current circuit breaker fails or not according to whether the direct-current circuit breaker is switched on or not;
when the direct current breaker is subjected to a switching-off function test, the switching-off switch is switched on, and the switching-on switch and the fault tripping switch are switched off; the power supply module provides the third voltage for the control unit through the power converter, and the control unit sends a brake-off signal and transmits the brake-off signal to the direct-current circuit breaker to perform a brake-off control test; judging whether the opening function of the direct-current circuit breaker breaks down or not according to whether the direct-current circuit breaker is opened or not;
when the tripping function of the direct current breaker is tested, the fault tripping switch is switched on, and the closing switch and the opening switch are switched off; the power supply module provides a third voltage for the control unit through the power converter, and the control unit is combined with the capacitor module to send a trip signal and transmit the trip signal to the direct current breaker to perform a trip control test; judging whether the tripping function of the direct current breaker breaks down or not according to whether the direct current breaker trips or not;
the testing device respectively judges whether the switching-on function, the switching-off function and the tripping function of the direct current circuit breaker have faults or not, and then the testing of the direct current circuit breaker is completed.
2. The test apparatus for a dc circuit breaker having an electronic control board as set forth in claim 1, further comprising:
and the indicating lamp is connected with the fourth output end of the control unit, and correspondingly lights up or lights out according to whether the direct current breaker breaks down or not judged by the control unit.
3. The test apparatus for a dc circuit breaker having an electronic control board as set forth in claim 2, wherein said indicator light further comprises: closing indicator light, separating brake indicator light and a mouth-off ready light.
4. The test apparatus for a dc circuit breaker having an electronic control board as set forth in claim 1, wherein the first voltage is an ac voltage of 220V.
5. The test apparatus for a dc circuit breaker having an electronic control board as set forth in claim 1, wherein the second voltage is a dc voltage of 220V.
6. The test apparatus for a dc circuit breaker having an electronic control board as set forth in claim 1, wherein said third voltage is a 24V dc voltage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120313446.5U CN214622949U (en) | 2021-02-03 | 2021-02-03 | Testing arrangement suitable for direct current breaker with electronic control board |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120313446.5U CN214622949U (en) | 2021-02-03 | 2021-02-03 | Testing arrangement suitable for direct current breaker with electronic control board |
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| CN214622949U true CN214622949U (en) | 2021-11-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067985A (en) * | 2020-09-04 | 2020-12-11 | 全球能源互联网研究院有限公司 | Moving die test device of high-voltage direct-current circuit breaker and transient fault simulation method |
| CN114137408A (en) * | 2021-11-29 | 2022-03-04 | 广东电网有限责任公司广州供电局 | Method and device for testing effectiveness of black module number overrun tripping function of valve control system |
-
2021
- 2021-02-03 CN CN202120313446.5U patent/CN214622949U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067985A (en) * | 2020-09-04 | 2020-12-11 | 全球能源互联网研究院有限公司 | Moving die test device of high-voltage direct-current circuit breaker and transient fault simulation method |
| CN112067985B (en) * | 2020-09-04 | 2023-05-02 | 全球能源互联网研究院有限公司 | Movable mould test device and transient fault simulation method for high-voltage direct-current circuit breaker |
| CN114137408A (en) * | 2021-11-29 | 2022-03-04 | 广东电网有限责任公司广州供电局 | Method and device for testing effectiveness of black module number overrun tripping function of valve control system |
| CN114137408B (en) * | 2021-11-29 | 2023-09-12 | 广东电网有限责任公司广州供电局 | Method and device for testing effectiveness of over-limit tripping function of black module number of valve control system |
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