CN214622950U - Testing arrangement suitable for do not have direct current breaker of electronic control board - Google Patents
Testing arrangement suitable for do not have direct current breaker of electronic control board Download PDFInfo
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- CN214622950U CN214622950U CN202120313453.5U CN202120313453U CN214622950U CN 214622950 U CN214622950 U CN 214622950U CN 202120313453 U CN202120313453 U CN 202120313453U CN 214622950 U CN214622950 U CN 214622950U
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Abstract
The utility model discloses a testing arrangement suitable for do not have electronic control board's direct current breaker, include: a power supply module; the input end of the bridge rectifier module is connected with the output end of the power supply module; the first input end is connected with the first output end of the bridge rectifier module through a closing switch, the second input end is connected with the second output end of the bridge rectifier module through a separating switch, the third input end is connected with the third output end of the bridge rectifier module through a fault tripping switch, the first output end is connected with the direct current circuit breaker through a first contactor, the second output end is connected with the direct current circuit breaker through a second contactor, and the third output end is connected with the direct current circuit breaker through a capacitor module and a third contactor according to the sequence. 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 do not have electronic control board's direct current breaker.
Background
The direct current breaker of Shanghai subway is the important component in the 1500V power supply system, and the produced 1500V direct current of rectifier cabinet passes through direct current breaker and distributes to touching net plug-in strip and contact net, through subway train through rail to negative pole plug-in strip, gets back to the rectifier cabinet finally and forms power supply loop, has guaranteed the required electric power of subway train normal operating from this. 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 do not have electronic control board's direct current breaker. 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.
To achieve the above object, the present invention provides a testing device for a dc circuit breaker without an electronic control board, including:
a power module providing a first voltage;
the input end of the bridge rectifier module is connected with the output end of the power supply module and converts the first voltage into a second voltage;
a Programmable Logic Controller (PLC) control unit, a first input terminal of which is connected to a first output terminal of the bridge rectifier module through a closing switch, a second input terminal of which is connected to a second output terminal of the bridge rectifier module through a separating switch, a third input terminal of which is connected to a third output terminal of the bridge rectifier module through a fault tripping switch, the first output terminal of which is connected to the dc circuit breaker through a first contactor, the second output terminal of which is connected to the dc circuit breaker through a second contactor, and the third output terminal of which is connected to the dc circuit breaker through a capacitor module and a third contactor in sequence;
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 PLC control unit through the bridge rectifier module, and the PLC control unit sends a closing signal; the first contactor receives a closing signal and performs closing control test on the direct current breaker; 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 second voltage for the PLC control unit through the bridge rectifier module, and the PLC control unit sends a brake-separating signal; the second contactor receives the opening signal and carries out opening control test on the direct current breaker; 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 second voltage for the PLC control unit through the bridge rectifier module, and the PLC control unit sends a tripping signal in combination with the capacitor module; the third contactor receives a tripping signal and performs tripping control test on the direct current breaker; 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 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 output end of the upper computer is connected with the fourth input end of the PLC control unit, and a worker regulates and controls the parameter setting of the upper computer in real time so as to regulate and control the test parameters of the testing device of the direct current circuit breaker.
Most preferably, the first voltage is an alternating voltage of 220V.
Most preferably, the second voltage is a 220V 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 do not have direct current breaker of electronic control board, this do not have direct current breaker K of electronic control board include electric keeping type direct current breaker and magnetic keeping type direct current breaker; in the present embodiment, the electric hold-type dc breaker is a UR 40-type dc breaker; the magnetic holding type direct current breaker is a GE4207 type direct current breaker. In this embodiment, the voltage of the dc breaker K is 1500V.
As shown in fig. 1, the test apparatus includes: the power supply module 1, the bridge rectifier module 2, the closing switch S1, the opening switch S2, the fault tripping switch S3, the PLC control unit 3, the first contactor KM1, the second contactor KM2, the third contactor KM3 and the capacitor module 4.
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 output end of the power supply module 1, and the bridge rectifier module converts the first voltage into a second voltage; the second voltage is 220V direct current voltage;
the first input end of the PLC control unit 3 is connected with the first output end of the bridge rectifier module 2 through a closing switch S1, the second input end of the PLC control unit is connected with the second output end of the bridge rectifier module 2 through an opening switch S2, the third input end of the PLC control unit is connected with the third output end of the bridge rectifier module 2 through a fault tripping switch S3, the first output end of the PLC control unit is connected with the direct-current circuit breaker K through a first contactor KM1, the second output end of the PLC control unit is connected with the direct-current circuit breaker K through a second contactor KM2, and the third output end of the PLC control unit is connected with the direct-current circuit breaker K through a capacitor module 4 and a third contactor KM3 in sequence;
the bridge rectifier module 2, the closing switch S1, the PLC control unit 3, the first contactor KM1, and the dc circuit breaker K form a first branch; the bridge rectifier module 2, the opening switch S2, the PLC control unit 3, the second contactor KM2 and the direct current breaker K form a second branch circuit; the bridge rectifier module 2, the fault trip switch S3, the PLC control unit 3, the capacitor module 4, the third contactor KM3, 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 PLC control unit 3 through the bridge rectifier module 2, and the PLC control unit 3 sends a closing signal; the first contactor KM1 receives a closing signal and performs a closing control test on the direct current breaker K; 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;
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 second voltage for the PLC control unit 3 through the bridge rectifier module 2, and the PLC control unit 3 sends a brake-off signal; the second contactor KM2 receives the switching-off signal and carries out switching-off control test on the direct current breaker K; 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;
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 second voltage for the PLC control unit 3 through the bridge rectifier module 2, and the PLC control unit 3 sends a tripping signal by combining a capacitor plate arranged in the capacitor module 4; the third contactor KM3 receives a tripping signal and performs a tripping control test on the direct current breaker K; and the staff judges whether the tripping function of the direct current breaker K breaks down or not according to whether the direct current breaker K 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 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 output end of the upper computer 5 is connected with the fourth input end of the PLC control unit 3, and a worker regulates and controls the parameter setting of the upper computer 5 in real time so as to regulate and control the test parameters of the test device of the direct current circuit breaker K.
The utility model discloses a theory of operation:
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 PLC control unit through the bridge rectifier module, and the PLC control unit sends a closing signal; the first contactor receives a closing signal and performs closing control test on the direct current breaker; 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 second voltage for the PLC control unit through the bridge rectifier module, and the PLC control unit sends a brake-separating signal; the second contactor receives the opening signal and carries out opening control test on the direct current breaker; 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 second voltage for the PLC control unit through the bridge rectifier module, and the PLC control unit sends a tripping signal in combination with the capacitor module; the third contactor receives a tripping signal and performs tripping control test on the direct current breaker; 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 do not have direct current circuit breaker of 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, fault tripping, 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 (4)
1. A testing apparatus for a dc circuit breaker without an electronic control board, comprising:
a power module providing a first voltage;
the input end of the bridge rectifier module is connected with the output end of the power supply module and converts the first voltage into a second voltage;
the first input end of the PLC control unit is connected with the first output end of the bridge rectifier module through a closing switch, the second input end of the PLC control unit is connected with the second output end of the bridge rectifier module through a separating switch, the third input end of the PLC control unit is connected with the third output end of the bridge rectifier module through a fault tripping switch, the first output end of the PLC control unit is connected with the direct current circuit breaker through a first contactor, the second output end of the PLC control unit is connected with the direct current circuit breaker through a second contactor, and the third output end of the PLC control unit is sequentially connected with the direct current circuit breaker through a capacitor module and a third contactor;
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 the second voltage for the PLC control unit through the bridge rectifier module, and the PLC control unit sends a closing signal; the first contactor receives the closing signal and performs closing control test on the direct current breaker; the working personnel judge whether the switching-on function of the direct current circuit breaker has a fault according to whether the direct current circuit breaker is switched on;
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 the second voltage for the PLC control unit through the bridge rectifier module, and the PLC control unit sends a brake-separating signal; the second contactor receives the opening signal and carries out opening control test on the direct current breaker; 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 the second voltage for the PLC control unit through the bridge rectifier module, and the PLC control unit sends a tripping signal in combination with the capacitor module; the third contactor receives a tripping signal and performs tripping control test on the direct current breaker; 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 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 without an electronic control board as recited in claim 1, wherein the test apparatus further comprises:
and the output end of the upper computer is connected with the fourth input end of the PLC control unit, and a worker regulates and controls the parameter setting of the upper computer in real time so as to regulate and control the test parameters of the test device of the direct current circuit breaker.
3. The test apparatus for a dc circuit breaker without an electronic control board as recited in claim 1, wherein the first voltage is an ac voltage of 220V.
4. The test apparatus for a dc circuit breaker without an electronic control board as recited in claim 1, wherein the second voltage is a 220V dc voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120313453.5U CN214622950U (en) | 2021-02-03 | 2021-02-03 | Testing arrangement suitable for do not have direct current breaker of electronic control board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120313453.5U CN214622950U (en) | 2021-02-03 | 2021-02-03 | Testing arrangement suitable for do not have direct current breaker of electronic control board |
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| Publication Number | Publication Date |
|---|---|
| CN214622950U true CN214622950U (en) | 2021-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120313453.5U Active CN214622950U (en) | 2021-02-03 | 2021-02-03 | Testing arrangement suitable for do not have direct current breaker of electronic control board |
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| CN (1) | CN214622950U (en) |
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- 2021-02-03 CN CN202120313453.5U patent/CN214622950U/en active Active
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