CN111817142A - On-line detection device and method for comprehensive fault alarm of switch cabinet for nuclear power station - Google Patents
On-line detection device and method for comprehensive fault alarm of switch cabinet for nuclear power station Download PDFInfo
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- CN111817142A CN111817142A CN202010650335.3A CN202010650335A CN111817142A CN 111817142 A CN111817142 A CN 111817142A CN 202010650335 A CN202010650335 A CN 202010650335A CN 111817142 A CN111817142 A CN 111817142A
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- 238000001514 detection method Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 7
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 22
- 239000003990 capacitor Substances 0.000 claims description 27
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 238000002955 isolation Methods 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 12
- 101000894525 Homo sapiens Transforming growth factor-beta-induced protein ig-h3 Proteins 0.000 claims description 9
- 102100021398 Transforming growth factor-beta-induced protein ig-h3 Human genes 0.000 claims description 9
- 239000013078 crystal Substances 0.000 claims description 9
- 208000028485 lattice corneal dystrophy type I Diseases 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000009826 distribution Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000005674 electromagnetic induction Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000007 visual effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00004—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the power network being locally controlled
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention belongs to the technical field of low-voltage power distribution fault detection, and particularly relates to a comprehensive fault alarm online detection device and method for a switch cabinet for a nuclear power station. The invention is operated by a button and displayed by a liquid crystal screen, has convenient operation, visual display, low manufacturing cost and stable performance, utilizes the electromagnetic induction principle, adopts non-contact measurement and does not influence the stability of a low-voltage power distribution system; the position of a fault drawer can be positioned on line, and the fault maintenance time of the switch cabinet is greatly shortened; the drawer with the fault can be positioned on line, the power failure of the whole row of buses is not needed, and the influence on downstream loads is avoided.
Description
Technical Field
The invention belongs to the technical field of low-voltage distribution fault detection, and particularly relates to a comprehensive fault alarm online detection device and method for a switch cabinet for a nuclear power station.
Background
Most of low-voltage power distribution cabinets of nuclear power stations adopt MNS type switch cabinets, the fault detection mode of the switch cabinets is a parallel connection mode, once one drawer of a row of switch cabinets breaks down, the row of switch cabinets generate a comprehensive alarm, and the specific position of the alarm drawer cannot be judged. If a single faulty drawer position needs to be searched, the entire row of switch cabinets needs to be disconnected and checked one by one, so that time and labor are consumed, and the safe and stable operation of a low-voltage power supply system is not facilitated.
During the cubical switchboard fault detection, can pinpoint trouble drawer position in real time, for the cubical switchboard maintenance personal provides more concrete information, shorten maintenance duration to the cubical switchboard, improve maintenance efficiency, guarantee that low voltage power supply system's safety and stability moves and have important meaning.
Therefore, it is necessary to provide a device and a method for on-line detection of comprehensive fault alarm of a switch cabinet for a nuclear power station, so as to solve the defects in the prior art.
Disclosure of Invention
The invention aims to provide a device and a method for on-line detection of fault alarm of a switch cabinet, aiming at the defects of the prior art, which can position the specific position of a fault drawer on line, have simple operation and intuitive and understandable display, shorten the fault overhaul time of the switch cabinet and enhance the reliability of a low-voltage power supply system.
The technical scheme of the invention is as follows:
the device comprises a single chip microcomputer module, a measuring module, a liquid crystal display module, an alarm module and an input module, wherein the single chip microcomputer module is respectively connected with the measuring module, the liquid crystal display module, the alarm module and the input module.
The single-chip microcomputer module comprises a single-chip microcomputer U1, a resistor R1, a capacitor C1, a capacitor C2, an electrolytic capacitor C3, a crystal oscillator X1, a single-chip microcomputer reset key K1 and an exclusion RP1, wherein a pin XTAL2 of the single-chip microcomputer U1 is connected with one end of the capacitor C2 and one end of the crystal oscillator X1, the other end of the crystal oscillator X1 is connected with one end of the capacitor C1 and a pin XTAL1 of the single-chip microcomputer U1, and the other end of the capacitor C2 is connected with the other end of the capacitor C1 and a power supply GN; a pin RST of the singlechip U1 is connected with one end of a reset key K1 of the singlechip, the other end of a reset key K1 of the singlechip is connected with a power supply +5V, the negative electrode of an electrolytic capacitor C3 is connected with a pin RST of the singlechip U1, the positive electrode of an electrolytic capacitor C3 is connected with the power supply +5V, one end of a resistor R1 is connected with the pin RST of the singlechip U1, and the other end of the resistor R1 is connected with; pins EA/Vff and Vcc of the singlechip U1 are connected with a +5V power supply, and a pin Vss is connected with a GND power supply; pin a of the resistor RP1 is connected with +5V of a power supply, and pins b to i of the resistor RP1 are respectively connected with pins P0.0 to P0.7 of the singlechip U1.
The singlechip U1 adopts an STC89C52 singlechip.
The measuring module comprises a light emitting diode D1, a resistor R3, an optical coupling isolation chip U2 and a winding magnetic ring L1, wherein the anode of the light emitting diode D1 is connected with a pin P2.7 of a singlechip U1, and the cathode of the light emitting diode D1 is connected with a pin A of an optical coupling isolation chip U2; one end of the resistor R3 is connected with a power supply GND, the other end of the resistor R3 is connected with a pin K of the optical coupling isolation chip U2, and pins C, E of the optical coupling isolation chip U2 are connected to two ends of the winding magnetic ring L1 respectively.
The liquid crystal display module comprises a liquid crystal display LCD1 and a potentiometer RP2, wherein a pin VSS of the LCD1 is connected with a power ground, a pin VDD is connected with a power supply +5V, a pin VEE is connected with an adjustable pin of the potentiometer RP2, pins RS, RW and E are respectively connected with pins P2.4, P2.5 and P2.6 of a U1 of the single chip microcomputer, and pins D0 to D7 are respectively connected with pins P0.0 to P0.7 of the U1 of the single chip microcomputer; two fixed pins of the potentiometer RP2 are respectively connected with a power supply +5V and a power supply GND.
The LCD1 adopts LCD1602 type LCD.
The alarm module comprises a resistor R2, a triode Q1 and a buzzer BUZ1, wherein one end of the resistor R2 is connected with a pin P2.1 of a U1 of the single chip microcomputer, the other end of the resistor R2 is connected with a base electrode of a triode Q1, an emitting electrode of the triode Q1 is connected with +5V of a power supply, a collector electrode of the triode Q1 is connected with a positive electrode of a buzzer BUZ1, and a negative electrode of the buzzer BUZ1 is connected with a GND power supply.
The input module comprises an alarm reset key K2 and a page turning key K3, wherein one end of the alarm reset key K2 is connected with a single chip microcomputer pin P1.0, the other end of the alarm reset key K2 is connected with a power supply GND, one end of the page turning key K3 is connected with the single chip microcomputer pin P1.1, and the other end of the page turning key K3 is connected with the power supply GND.
The detection method of the on-line detection device for the comprehensive fault alarm of the switch cabinet for the nuclear power station comprises the following steps:
and 3, connecting the device to a +5V power supply, lighting the liquid crystal display screen at the moment, and performing online detection and fault alarm on the device.
If no drawer has a fault alarm in the step 3, displaying no alarm on the display screen; if a drawer has a fault alarm, the alarm buzzer sounds, the display screen displays the alarm drawer number + alarm, and when a plurality of drawers alarm, the page turning key K2 is pressed to display the alarm drawer numbers one by one.
And 3, when the alarm of the fault alarm drawer is eliminated, pressing an alarm reset key K3 to reset the alarm signal of the device.
And 3, when the device has a fault, pressing a singlechip reset key K1 to reset the whole device.
The invention has the following beneficial effects:
(1) the switch cabinet comprehensive fault alarm on-line detection device for the nuclear power station is operated through buttons, displayed by a liquid crystal screen, convenient to operate and visual in display.
(2) The switch cabinet comprehensive fault alarm on-line detection device for the nuclear power station is low in manufacturing cost and stable in performance.
(3) The comprehensive fault alarm online detection device for the switch cabinet for the nuclear power station utilizes the electromagnetic induction principle and adopts non-contact measurement, so that the stability of a low-voltage power distribution system cannot be influenced.
(4) The switch cabinet comprehensive fault alarm on-line detection device for the nuclear power station can locate the position of the fault drawer on line, and greatly shortens the fault maintenance time of the switch cabinet.
(5) The comprehensive fault alarm online detection device for the switch cabinet for the nuclear power station can position the fault drawer online, does not need to power off the whole row of buses, and does not have any influence on downstream loads.
Drawings
Fig. 1 is a circuit connection diagram of a comprehensive fault alarm online detection device of a switch cabinet for a nuclear power station, provided by the invention;
fig. 2 is a circuit diagram of a single chip module in the comprehensive fault alarm online detection device of the switch cabinet for the nuclear power station, provided by the invention;
FIG. 3 is a circuit diagram of a measurement module in the on-line detection device for comprehensive fault alarm of the switch cabinet for the nuclear power station provided by the invention;
FIG. 4 is a circuit diagram of a liquid crystal display module in the on-line detection device for comprehensive fault alarm of the switch cabinet for the nuclear power station provided by the invention;
fig. 5 is a circuit diagram of an alarm module in the comprehensive fault alarm on-line detection device of the switch cabinet for the nuclear power station, provided by the invention;
FIG. 6 is a circuit diagram of an input module in the on-line detection device for comprehensive fault alarm of the switch cabinet for a nuclear power station, provided by the invention;
in the figure: 1-a singlechip module; 2-a measurement module; 3-a liquid crystal display module; 4-an alarm module; 5-an input module.
Detailed Description
The invention is further described below with reference to examples and figures:
as shown in fig. 1, the on-line detection device for comprehensive fault alarm of a switch cabinet for a nuclear power station provided by the invention comprises a single chip microcomputer module 1, a measurement module 2, a liquid crystal display module 3, an alarm module 4 and an input module 5, wherein the single chip microcomputer module 1 is respectively connected with the measurement module 2, the liquid crystal display module 3, the alarm module 4 and the input module 5.
As shown in fig. 2, the single chip microcomputer module 1 includes a single chip microcomputer U1 and an external circuit thereof, the single chip microcomputer U1 adopts an STC89C52 type single chip microcomputer, and the external circuit includes a resistor R1, a capacitor C1, a capacitor C2, an electrolytic capacitor C3, a crystal oscillator X1, a single chip microcomputer reset key K1, and a resistor RP 1; the pin XTAL2 of the singlechip U1 is connected with one end of a capacitor C2 and one end of a crystal oscillator X1, the other end of the crystal oscillator X1 is connected with one end of a capacitor C1 and the pin XTAL1 of the singlechip U1, and the other end of the capacitor C2 is connected with the other end of a capacitor C1 and a power supply GND; a pin RST of the singlechip U1 is connected with one end of a reset key K1 of the singlechip, the other end of a reset key K1 of the singlechip is connected with a power supply +5V, the negative electrode of an electrolytic capacitor C3 is connected with a pin RST of the singlechip U1, the positive electrode of an electrolytic capacitor C3 is connected with the power supply +5V, one end of a resistor R1 is connected with the pin RST of the singlechip U1, and the other end of the resistor R1 is connected with; pins EA/Vff and Vcc of the singlechip U1 are connected with a +5V power supply, and a pin Vss is connected with a GND power supply; pin a of the resistor RP1 is connected with +5V of a power supply, and pins b to i of the resistor RP1 are respectively connected with pins P0.0 to P0.7 of the singlechip U1.
As shown in fig. 3, the measuring module 2 of the present invention includes a light emitting diode D1, a resistor R3, an optical coupling isolation chip U2, and a wire-wound magnetic ring L1; the anode of the light emitting diode D1 is connected with a pin P2.7 of the singlechip U1, and the cathode of the light emitting diode D1 is connected with a pin A of the optical coupling isolation chip U2; one end of the resistor R3 is connected with a power supply GND, the other end of the resistor R3 is connected with a pin K of the optical coupling isolation chip U2, and pins C, E of the optical coupling isolation chip U2 are connected to two ends of the winding magnetic ring L1 respectively.
As shown in fig. 4, the liquid crystal display module 3 of the present invention includes a liquid crystal display LCD1 and a potentiometer RP2, wherein the liquid crystal display LCD1 is an LCD1602 type liquid crystal display; pin VSS of LCD1 is connected with power ground, pin VDD is connected with +5V of power, pin VEE is connected with adjustable pin of potentiometer RP2, pins RS, RW and E are respectively connected with pin P2.4, pin P2.5 and pin P2.6 of U1 of the single chip microcomputer, and pin D0 to pin D7 are respectively connected with pin P0.0 to pin P0.7 of U1 of the single chip microcomputer; two fixed pins of the potentiometer RP2 are respectively connected with a power supply +5V and a power supply GND.
As shown in fig. 5, the alarm module 4 of the present invention includes a resistor R2, a transistor Q1, and a buzzer BUZ 1. One end of the resistor R2 is connected with a pin P2.1 of the singlechip U1, the other end of the resistor R2 is connected with the base electrode of the triode Q1, the emitting electrode of the triode Q1 is connected with +5V of a power supply, the collecting electrode of the triode Q1 is connected with the positive electrode of the buzzer BUZ1, and the negative electrode of the buzzer BUZ1 is connected with a power supply GND.
As shown in fig. 6, the input module 5 of the present invention includes an alarm reset key K2 and a page turning key K3, one end of the alarm reset key K2 is connected to the pin P1.0 of the single chip microcomputer, and the other end is connected to the power GND; one end of the page turning key K3 is connected with a pin P1.1 of the single chip microcomputer, and the other end is connected with a power GND.
The invention provides a comprehensive fault alarm on-line detection device of a switch cabinet for a nuclear power station, which utilizes a winding magnetic ring and a peripheral circuit to convert a fault alarm drawer alarm signal into a switching value signal which can be identified by a single chip microcomputer, and the single chip microcomputer displays the number of an alarm drawer on a liquid crystal display screen through corresponding processing and operation. The input module 5 and the alarm module 4 are respectively used for operation input and alarm output of the device.
The invention also provides a detection method of the on-line detection device for the comprehensive fault alarm of the switch cabinet for the nuclear power station, which comprises the following steps:
and 3, connecting the device to a +5V power supply, lighting the liquid crystal display screen at the moment, and performing online detection and fault alarm on the device.
If no drawer has a fault alarm, the display screen displays no alarm; if a drawer has a fault alarm, the alarm buzzer sounds, the display screen displays the alarm drawer number + alarm, and when a plurality of drawers alarm, the page turning key K2 is pressed to display the alarm drawer numbers one by one.
When the malfunction alarm drawer alarm is eliminated, the alarm reset key K3 is pressed to reset the device alarm signal.
When the device breaks down, the singlechip reset key K1 is pressed to reset the whole device.
The number of the measuring modules 2 can be determined according to the field application condition, and if the number of the I/O ports of the single chip microcomputer is not enough, the I/O ports can be expanded by adopting an I/O port expansion chip.
The present invention has been described in detail with reference to the embodiments, but the present invention is not limited to the embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art. The prior art can be adopted in the content which is not described in detail in the invention.
Claims (12)
1. The utility model provides a cubical switchboard comprehensive failure alarm on-line measuring device for nuclear power station which characterized in that: the device comprises a single chip microcomputer module (1), a measuring module (2), a liquid crystal display module (3), an alarm module (4) and an input module (5), wherein the single chip microcomputer module (1) is respectively connected with the measuring module (2), the liquid crystal display module (3), the alarm module (4) and the input module (5).
2. The on-line detection device for the comprehensive fault alarm of the switch cabinet for the nuclear power station as claimed in claim 1, characterized in that: the single chip microcomputer module (1) comprises a single chip microcomputer U1, a resistor R1, a capacitor C1, a capacitor C2, an electrolytic capacitor C3, a crystal oscillator X1, a single chip microcomputer reset key K1 and a resistor RP1, wherein a pin XTAL2 of the single chip microcomputer U1 is connected with one end of the capacitor C2 and one end of the crystal oscillator X1, the other end of the crystal oscillator X1 is connected with one end of a capacitor C1 and a pin XTAL1 of the single chip microcomputer U1, and the other end of the capacitor C2 is connected with the other end of the capacitor C1 and a power supply GND; a pin RST of the singlechip U1 is connected with one end of a reset key K1 of the singlechip, the other end of a reset key K1 of the singlechip is connected with a power supply +5V, the negative electrode of an electrolytic capacitor C3 is connected with a pin RST of the singlechip U1, the positive electrode of an electrolytic capacitor C3 is connected with the power supply +5V, one end of a resistor R1 is connected with the pin RST of the singlechip U1, and the other end of the resistor R1 is connected with; pins EA/Vff and Vcc of the singlechip U1 are connected with a +5V power supply, and a pin Vss is connected with a GND power supply; pin a of the resistor RP1 is connected with +5V of a power supply, and pins b to i of the resistor RP1 are respectively connected with pins P0.0 to P0.7 of the singlechip U1.
3. The on-line detection device for the comprehensive fault alarm of the switch cabinet for the nuclear power station as claimed in claim 2, characterized in that: the singlechip U1 adopts an STC89C52 singlechip.
4. The on-line detection device for the comprehensive fault alarm of the switch cabinet for the nuclear power station as claimed in claim 3, wherein: the measuring module (2) comprises a light-emitting diode D1, a resistor R3, an optical coupling isolation chip U2 and a winding magnetic ring L1, wherein the anode of the light-emitting diode D1 is connected with a pin P2.7 of a U1 of the single chip microcomputer, and the cathode of the light-emitting diode D1 is connected with a pin A of an U2 of the optical coupling isolation chip; one end of the resistor R3 is connected with a power supply GND, the other end of the resistor R3 is connected with a pin K of the optical coupling isolation chip U2, and pins C, E of the optical coupling isolation chip U2 are connected to two ends of the winding magnetic ring L1 respectively.
5. The on-line detection device for the comprehensive fault alarm of the switch cabinet for the nuclear power station as claimed in claim 4, wherein: the liquid crystal display module (3) comprises a liquid crystal display LCD1 and a potentiometer RP2, wherein a pin VSS of the LCD1 is connected with a power ground, a pin VDD is connected with a power supply +5V, a pin VEE is connected with an adjustable pin of the potentiometer RP2, pins RS, RW and E are respectively connected with pins P2.4, P2.5 and P2.6 of the U1 of the single chip microcomputer, and pins D0 to D7 are respectively connected with pins P0.0 to P0.7 of the U1 of the single chip microcomputer; two fixed pins of the potentiometer RP2 are respectively connected with a power supply +5V and a power supply GND.
6. The on-line detection device for the comprehensive fault alarm of the switch cabinet for the nuclear power station as recited in claim 5, characterized in that: the LCD1 adopts LCD1602 type LCD.
7. The on-line detection device for the comprehensive fault alarm of the switch cabinet for the nuclear power station as recited in claim 6, characterized in that: the alarm module (4) comprises a resistor R2, a triode Q1 and a buzzer BUZ1, wherein one end of the resistor R2 is connected with a pin P2.1 of a single chip microcomputer U1, the other end of the resistor R2 is connected with a base electrode of a triode Q1, an emitting electrode of the triode Q1 is connected with +5V of a power supply, a collector electrode of the triode Q1 is connected with a positive electrode of a buzzer BUZ1, and a negative electrode of the buzzer BUZ1 is connected with a power supply GND.
8. The on-line detection device for the comprehensive fault alarm of the switch cabinet for the nuclear power station as recited in claim 7, characterized in that: the input module (5) comprises an alarm reset key K2 and a page turning key K3, wherein one end of the alarm reset key K2 is connected with a single chip microcomputer pin P1.0, the other end of the alarm reset key K2 is connected with a power supply GND, one end of the page turning key K3 is connected with the single chip microcomputer pin P1.1, and the other end of the page turning key K3 is connected with the power supply GND.
9. The method for detecting the on-line detection device for the comprehensive fault alarm of the switch cabinet for the nuclear power station as claimed in any one of claims 1 to 8, characterized by comprising the following steps:
step 1, connecting circuits among modules;
step 2, leading out an alarm signal wire from the drawer to be detected, penetrating through a winding magnetic ring L1 of the measuring module (2) and fixing;
and 3, connecting the device to a +5V power supply, lighting the liquid crystal display screen at the moment, and performing online detection and fault alarm on the device.
10. The on-line detection method for the comprehensive fault alarm of the switch cabinet for the nuclear power station as recited in claim 9, characterized in that: if no drawer has a fault alarm in the step 3, displaying no alarm on the display screen; if a drawer has a fault alarm, the alarm buzzer sounds, the display screen displays the alarm drawer number + alarm, and when a plurality of drawers alarm, the page turning key K2 is pressed to display the alarm drawer numbers one by one.
11. The on-line detection method for the comprehensive fault alarm of the switch cabinet for the nuclear power station as recited in claim 10, characterized in that: and 3, when the alarm of the fault alarm drawer is eliminated, pressing an alarm reset key K3 to reset the alarm signal of the device.
12. The on-line detection method for the comprehensive fault alarm of the switch cabinet for the nuclear power station as recited in claim 11, characterized in that: and 3, when the device has a fault, pressing a singlechip reset key K1 to reset the whole device.
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| CN202010650335.3A CN111817142A (en) | 2020-07-08 | 2020-07-08 | On-line detection device and method for comprehensive fault alarm of switch cabinet for nuclear power station |
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| CN202010650335.3A CN111817142A (en) | 2020-07-08 | 2020-07-08 | On-line detection device and method for comprehensive fault alarm of switch cabinet for nuclear power station |
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| CN207200105U (en) * | 2017-08-22 | 2018-04-06 | 广东艾尔凯电力科技有限公司 | A kind of low voltage drawing-out switching carbinet |
| CN209266868U (en) * | 2018-07-23 | 2019-08-16 | 河南费曼电力技术有限公司 | A kind of high and low voltage switchgear cabinet body structure |
| CN110783846A (en) * | 2019-11-05 | 2020-02-11 | 山东厚俞实业有限公司 | Draw-out type non-contact position finding medium voltage switchgear |
| CN212517910U (en) * | 2020-07-08 | 2021-02-09 | 江苏核电有限公司 | On-line detection device for comprehensive fault alarm of switch cabinet for nuclear power station |
-
2020
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| KR20170044309A (en) * | 2015-10-15 | 2017-04-25 | 박지영 | Non-powered transceiver system |
| CN207200105U (en) * | 2017-08-22 | 2018-04-06 | 广东艾尔凯电力科技有限公司 | A kind of low voltage drawing-out switching carbinet |
| CN209266868U (en) * | 2018-07-23 | 2019-08-16 | 河南费曼电力技术有限公司 | A kind of high and low voltage switchgear cabinet body structure |
| CN110783846A (en) * | 2019-11-05 | 2020-02-11 | 山东厚俞实业有限公司 | Draw-out type non-contact position finding medium voltage switchgear |
| CN212517910U (en) * | 2020-07-08 | 2021-02-09 | 江苏核电有限公司 | On-line detection device for comprehensive fault alarm of switch cabinet for nuclear power station |
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