CN220474346U - Nuclear power plant's low-speed factory power switching logic test device - Google Patents
Nuclear power plant's low-speed factory power switching logic test device Download PDFInfo
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- CN220474346U CN220474346U CN202320306005.1U CN202320306005U CN220474346U CN 220474346 U CN220474346 U CN 220474346U CN 202320306005 U CN202320306005 U CN 202320306005U CN 220474346 U CN220474346 U CN 220474346U
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- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 238000012795 verification Methods 0.000 abstract description 12
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Abstract
The utility model belongs to the technical field of device maintenance and test, and particularly relates to a power switching logic test device for a slow-speed plant of a nuclear power plant. The touch screen display control module is connected with the controller module, the external instruction node input module is connected with the controller module, the controller module is connected with the dual-position relay, the controller module is connected with the voltage analog triggering module, the controller module is connected with the current analog triggering module, the dual-position relay, the voltage analog triggering module and the current analog triggering module are connected with the position node voltage and current output module, the position node voltage and current output module is connected with the controller module, the external instruction node input module is connected with the position node voltage and current output module, and the power module is connected with the dual-position relay, the voltage analog triggering module and the current analog triggering module. The utility model realizes the verification of switching logic of the low-speed switching device for the high-voltage plant of the nuclear power unit under the condition that the bus is not powered off.
Description
Technical Field
The utility model belongs to the technical field of device maintenance and test, and particularly relates to a power switching logic test device for a slow-speed plant of a nuclear power plant.
Background
The nuclear power unit is provided with two rows of high-voltage buses, and is respectively provided with a set of slow power switching device. And only when the bus, the transformer power supply and the auxiliary variable power supply are all out of service, the switching logic transmission test verification can be performed. The test mode has the following defects: 1) When verification is carried out, a row of buses are required to be powered off, so that bus loads are not available, and even an operator is required to manually switch related loads, operation of a safety special system of the nuclear power unit can be maintained. 2) The switch of the test transmission of maintenance personnel is dispersed in the areas without mobile phone signals, such as a protection room, a high-voltage power distribution room, and the like, so that the test information is difficult to transfer. In view of the current overhaul situation, the utility model can realize each logic verification function of the slow switching device under the condition that two rows of buses are not powered off, and the verification mode is convenient and reliable.
Disclosure of Invention
The utility model aims to provide a device for testing the switching logic of a low-speed station power supply of a nuclear power plant, which can realize the verification of the switching logic of the low-speed switching device for a high-voltage station of the nuclear power unit under the condition that a bus is not powered off.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a nuclear power plant's low-speed power supply switching logic test device, includes power plug, power module, external command node input module, two position relay, voltage analog triggering module, current analog triggering module, position node voltage current output module, controller module, touch-sensitive screen display control module; the power plug is connected with the power module, the touch screen display control module is connected with the controller module, the external instruction node input module is connected with the controller module, the controller module is connected with the dual-position relay, the controller module is connected with the voltage analog triggering module, the controller module is connected with the current analog triggering module, the dual-position relay, the voltage analog triggering module and the current analog triggering module are connected with the position node voltage current output module, the position node voltage current output module is connected with the controller module, the external instruction node input module is connected with the position node voltage current output module, and the power module is connected with the dual-position relay, the voltage analog triggering module and the current analog triggering module.
The power plug is connected with external AC220V commercial power.
One end of the test wire is connected to an external command node input module.
One end of the test wire is connected to the position node voltage and current output module.
The beneficial effects obtained by the utility model are as follows:
the utility model belongs to the technical field of device maintenance and test, and is mainly used for logic verification of a low-speed switching device of high-voltage station service.
The utility model can perform various logic verifications of slow switching under the condition that the high-voltage bus of the nuclear power plant is not powered off, including forward switching, reverse switching, accident switching, backup power supply power-off locking and logic verification of abnormal position of the incoming line switch, and test results can meet the requirements.
Drawings
FIG. 1 is a schematic diagram of a logic test device for switching power supply of a nuclear power plant at a low speed;
in the figure: the device comprises a 1-power plug, a 2-power module, a 3-external instruction node input module, a 4-dual-position relay, a 5-voltage analog triggering module, a 6-current analog triggering module, a 7-position node voltage and current output module, an 8-controller module and a 9-touch screen display control module.
Detailed Description
The utility model will now be described in detail with reference to the drawings and specific examples.
A nuclear power plant slow power switching logic test device comprises: the power plug 1, the power module 2, the external instruction node input module 3, the double-position relay 4, the voltage analog triggering module 5, the current analog triggering module 6, the position node voltage current output module 7, the controller module 8 and the touch screen display control module 9;
the power plug 1 is connected with the power module 2 and is used for realizing power supply of the whole control system; the touch screen display control module 9 is connected with the controller module 8 for carrying out control instruction and information interaction; the external instruction node input module 3 is connected with the controller module 8 for externally inputting instructions to the controller; the controller module 8 is connected with the double-position relay 4 and is used for controlling the switching-on and switching-off instructions of the circuit breaker; the controller module 8 is connected with the voltage analog triggering module 5 and used for triggering and controlling the voltage magnitude; the controller module 8 is connected with the current analog quantity triggering module 6 and used for triggering and controlling the current quantity value; the double-position relay 4, the voltage analog triggering module 5 and the current analog triggering module 6 are connected with the position node voltage and current output module 7 for carrying out position node, voltage analog and current analog output connection; the position node voltage and current output module 7 is connected with the controller module 8 and feeds back output nodes, voltages and currents to the controller. The external instruction node input module 3 is connected with the position node voltage and current output module 7, and the power supply module 2 is connected with the double-position relay 4, the voltage analog triggering module 5 and the current analog triggering module 6.
The application method of the nuclear power plant slow power supply switching logic test device comprises the following steps:
s1, connecting one end of a test wire to a breaker closing instruction and a breaker opening instruction of a slow-cutting device by using the test wire, and connecting the other end of the test wire to an external instruction node input module of the test device;
s2, connecting one end of a test wire to a bus and an incoming line voltage connecting terminal of the slow cutting device by using a voltage test wire, and connecting the other end of the test wire to a voltage module of the test device;
s3, using a current experiment wire, connecting one end of the experiment wire to a power supply inlet wire, a standby inlet wire and a bus-bar switch current connecting terminal of the slow-cutting device, and connecting the other end of the experiment wire to a current output module of the experiment device;
s4, connecting one end of the test wire to a bus, an incoming wire and a bus-bar circuit breaker position feedback connecting terminal of the slow-cutting device by using a voltage test wire, and connecting the other end of the test wire to a position node output module of the test device;
s5: the power plug module is inserted, and a switch on the power module is opened, so that the whole device is electrified;
s6: the method comprises the steps that switching-on and switching-off operations of a circuit breaker are carried out on a touch screen display control module, a normal power supply incoming line and a bus-tie circuit breaker are placed at a switching-on position, a standby power supply incoming line circuit breaker is at a switching-off position, and correctness of a circuit breaker position feedback node is checked;
s7: carrying out analog output of busbar, incoming line and standby incoming line voltage on a touch screen display control module;
s8: carrying out analog output of incoming line, standby incoming line and bus-connected current on a touch screen display control module;
s9: performing logic function verification of the slow-cutting device;
a logic test device for switching power supply of a nuclear power plant at a low speed is mainly used for logic verification of a low-speed switching device of high-voltage plant power, and can simulate functions of bus voltage/current, incoming line circuit breaker, manual operation, accident switching and the like, and the logic verification of the low-speed switching device is completed under the condition that a high-voltage bus is not powered off.
The device comprises a device shell, a power plug, a power module, an external instruction node input module, a two-position relay, a voltage analog triggering module, a current analog triggering module, a position node/voltage/current output module, a controller module, a touch screen display control module, a test wire and the like. The specific function is introduced as follows:
a power plug: the external AC220V commercial power is connected into the test device;
and a power supply module: the power module is used for supplying power to the control unit, the two-position circuit breaker module, the voltage analog quantity module, the current analog quantity module and the touch screen display control module;
an external instruction node input module: inputting a switching-on and switching-off instruction of the circuit breaker into a test device;
a dual position relay module: simulating the switching-on and switching-off coil of the circuit breaker and outputting the node after the action;
the voltage analog triggering module: an analog voltage triggering module;
the current analog triggering module: an analog current amount triggering module;
the position node voltage and current output module is as follows: outputting the voltage, the current and the position node of the circuit breaker of the test device;
and a controller module: the control and information interaction are carried out on the two-position relay module, the voltage triggering module and the current triggering module;
the touch screen display control module: switch state information (on-off position, voltage and current are displayed) and a switch on-off control command of the circuit breaker is input.
Claims (4)
1. A nuclear power plant's slow power supply switching logic test device for factory, its characterized in that: the device comprises a power plug, a power module, an external instruction node input module, a two-position relay, a voltage analog triggering module, a current analog triggering module, a position node voltage current output module, a controller module and a touch screen display control module; the power plug is connected with the power module, the touch screen display control module is connected with the controller module, the external instruction node input module is connected with the controller module, the controller module is connected with the dual-position relay, the controller module is connected with the voltage analog triggering module, the controller module is connected with the current analog triggering module, the dual-position relay, the voltage analog triggering module and the current analog triggering module are connected with the position node voltage current output module, the position node voltage current output module is connected with the controller module, the external instruction node input module is connected with the position node voltage current output module, and the power module is connected with the dual-position relay, the voltage analog triggering module and the current analog triggering module.
2. The nuclear power plant slow-speed factory power switching logic test device according to claim 1, wherein: the power plug is connected with external AC220V commercial power.
3. The nuclear power plant slow-speed factory power switching logic test device according to claim 1, wherein: one end of the test wire is connected to an external command node input module.
4. The nuclear power plant slow-speed factory power switching logic test device according to claim 1, wherein: one end of the test wire is connected to the position node voltage and current output module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320306005.1U CN220474346U (en) | 2023-02-24 | 2023-02-24 | Nuclear power plant's low-speed factory power switching logic test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320306005.1U CN220474346U (en) | 2023-02-24 | 2023-02-24 | Nuclear power plant's low-speed factory power switching logic test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220474346U true CN220474346U (en) | 2024-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320306005.1U Active CN220474346U (en) | 2023-02-24 | 2023-02-24 | Nuclear power plant's low-speed factory power switching logic test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220474346U (en) |
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2023
- 2023-02-24 CN CN202320306005.1U patent/CN220474346U/en active Active
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