CN111474462A - High-safety electrical equipment circuit fault detection method - Google Patents
High-safety electrical equipment circuit fault detection method Download PDFInfo
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- CN111474462A CN111474462A CN202010308888.0A CN202010308888A CN111474462A CN 111474462 A CN111474462 A CN 111474462A CN 202010308888 A CN202010308888 A CN 202010308888A CN 111474462 A CN111474462 A CN 111474462A
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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
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/281—Specific types of tests or tests for a specific type of fault, e.g. thermal mapping, shorts testing
- G01R31/2812—Checking for open circuits or shorts, e.g. solder bridges; Testing conductivity, resistivity or impedance
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- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a high-safety electric equipment circuit fault detection method, which comprises the following steps: firstly, observing whether the electrical equipment has abnormal parts or not by experienced related workers when the electrical equipment has faults, observing whether the components have overheating, smoke and obvious scorching taste or not and whether the filament of an oscillograph tube of an electronic tube has high-voltage ignition or not under the condition of inspection, and then, carrying out loop inspection of a control system to obtain the most basic fault elimination; according to the high-safety electric equipment circuit fault detection method, due to the fact that combination of experienced workers and electric equipment data is arranged, safety accidents caused by misoperation and test can be effectively avoided during maintenance, and meanwhile, fault problems can be rapidly confirmed through comprehensive analysis and simple detection of professionals.
Description
Technical Field
The invention belongs to the technical field of detection, and particularly relates to a high-safety electric equipment circuit fault detection method.
Background
Along with the rapid development and gradual expansion and deepening of the industrialization and the development of the reform, the social productivity of the scientific technology is continuously enhanced, the transformation of the electrical equipment as a scientific and technological product is more and more widely adopted in production, the quantity and the variety of the electrical equipment are increased at an unprecedented speed, the maintenance method and the fault diagnosis technology are continuously enriched and improved, and the 'difficult maintenance' of the electrical equipment becomes a prominent problem which influences the effective use of the production equipment more and more;
the existing electrical equipment detection has certain defects, the traditional electrical equipment detection is carried out through equipment due to the fact that problems are solved rapidly in the detection process, safety accidents occur due to misoperation during detection possibly, and inconvenience is brought to use.
Disclosure of Invention
The invention mainly aims to provide a high-safety electric equipment circuit fault detection method which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a high-safety electric equipment circuit fault detection method comprises the following steps:
firstly, observing whether the electrical equipment has abnormal parts or not by experienced related workers when the electrical equipment has faults, observing whether components have overheating, smoke and obvious burnt taste or not and whether high-voltage ignition exists or not by filaments of an oscillograph tube of an electronic tube, and then, carrying out loop inspection of a control system to obtain the most basic fault elimination;
secondly, analyzing equipment symptoms, wherein when no external problems appear in the observation of maintenance personnel, the maintenance personnel need to inquire the operation personnel, check the operation steps to know whether improper conditions exist in the operation, and then comprehensively analyze the abundant maintenance experience of the maintenance personnel according to the relevant data of the equipment, the maintenance data and the information provided by the operation personnel to analyze the possibility of main problems existing in the electrical equipment to obtain primary diagnosis information;
step three, detecting and determining fault points, detecting the obtained preliminary diagnosis information one by one according to the relevant information of the equipment, firstly detecting the parts easy to detect, then detecting the parts difficult to detect, and eliminating the fault problems of the preliminary diagnosis one by one in the detection process to obtain the final fault problems of the electrical equipment;
maintenance is carried out by maintenance personnel through related maintenance tools and methods according to the obtained final fault problem of the electrical equipment; attention matters in related data of the electrical equipment need to be paid special attention in maintenance, and if the maintenance is impossible, the spare parts produced by the same manufacturer need to be replaced to obtain the maintained electrical equipment;
checking, namely performing secondary loop electrification checking at first, and performing primary loop electrification checking again, wherein the current transformer and the voltage transformer are subjected to electrical tests, and the secondary side of the current transformer has no open circuit and the secondary side of the voltage transformer has no short circuit; checking whether relays, instruments and the like in the loop are qualified through verification; the circuit breaker and the isolating switch of the checking loop are well adjusted, and the circuit breaker is subjected to manual and electric tripping and closing tests; obtaining the checked electrical equipment;
testing and adjusting, namely performing power-on test on the inspected electrical equipment, and finishing setting when the secondary loop test of the power receiving system is qualified; according to an approved power receiving operation instruction, the power distribution cabinet is used for conducting power test step by step according to the principle of firstly conducting high voltage, secondly conducting low voltage, firstly conducting a trunk line and secondly conducting a branch line, running for 60-80min, carefully observing and finding whether other problems exist in the testing process, and if the problems occur, timely maintaining and processing can be conducted, the high-safety electric equipment circuit fault detection method can be completed, and finally complete electric equipment can be obtained;
preferably, in the step one, a multimeter is adopted to test a test point at the lower end of a power switch of the control system when the loop of the control system is checked, a certain button is operated and a related contactor is pressed to be closed, the swinging condition of a pointer of the multimeter is observed, if the pointer has a certain resistance value, the pointer is normal, if the pointer is abnormal, a related line can be tested step by step, a certain element and an auxiliary contact of a section of wire can be adopted, and when the certain element is short-circuited, the line is connected, and the disconnection or poor contact at the position is.
Preferably, in the fourth step, the power supply must be cut off during maintenance, the fuse is removed, and the maintenance can be carried out after no electricity is proved.
Preferably, in the fifth step, the primary circuit refers to insulation resistance measurement and a voltage withstanding test, the insulation resistance value meets the specification, and the secondary circuit refers to insulation resistance measurement and a voltage withstanding test of the weak current circuit according to the specification of a manufacturer.
Preferably, in the sixth step, when the device is used after being tested without errors, the electrical device needs to be maintained regularly, and the regular maintenance is performed every 15 to 20 days.
Compared with the prior art, the invention has the following beneficial effects: this electrical equipment circuit fault detection method of high security through arranging the combination of experienced staff and electrical equipment data for can effectually avoid the incident because of operation, the improper arouse of test during the maintenance, simultaneously through professional's comprehensive analysis and simple and easy detection, thereby can be quick confirm the trouble problem under the high safe condition of not electrified, thereby effectual solution trouble, simple process, convenient operation has good use prospect.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Examples
When the electric equipment is detected, firstly, an experienced related worker directly observes the electric equipment when the electric equipment is in fault, observes whether abnormal parts exist in the electric equipment or not under the condition of inspection, observes whether components have overheating, smoking and obvious burning taste or not, and observes whether high-voltage sparking exists in filaments of an oscillograph tube of an electronic tube or not, then performs loop inspection of a control system, tests a test point at the lower end of a power switch of the control system by adopting a universal meter when performing loop inspection of the control system, operates a certain button and presses a related contactor to close the test switch, simultaneously observes the swinging condition of a pointer of the universal meter, has a certain resistance value which is normal, tests related circuits step by step if the abnormality, can also adopt a certain component and an auxiliary contact of a section of conducting wire, and when the circuit is switched on when the certain component is short-circuited, the circuit or the contact at the position is poor, the most basic fault is eliminated; then analyzing the equipment symptoms, when no external problems appear in the observation of maintenance personnel, inquiring the operation personnel to check the operation steps so as to know whether improper conditions exist in the operation, then comprehensively analyzing the abundant maintenance experience of the maintenance personnel according to the relevant data, the maintenance data and the information provided by the operation personnel to analyze the possibility of main problems existing in the electrical equipment so as to obtain primary diagnosis information; detecting and determining fault points, detecting the obtained preliminary diagnosis information one by one according to relevant equipment data, checking parts which are easy to detect, checking parts which are difficult to detect, and eliminating the preliminary diagnosis fault problems one by one in the detection process to obtain the final fault problems of the electrical equipment; secondly, maintenance is carried out by maintenance personnel through related maintenance tools and methods according to the obtained final failure problem of the electrical equipment; when in maintenance, the power supply must be cut off, the fuse is taken down, the maintenance can be carried out after no electricity is detected, attention items in related data of the electrical equipment need to be paid special attention in the maintenance, and if the maintenance cannot be carried out, the spare parts produced by the same manufacturer need to be replaced, so that the maintained electrical equipment is obtained; then, checking, namely firstly carrying out secondary loop power-on checking and then carrying out primary loop power-on checking, wherein the primary loop refers to insulation resistance measurement and voltage withstand test, the insulation resistance value accords with the specification, the secondary loop refers to insulation resistance value measurement and voltage withstand test of a weak current loop according to the specification of a manufacturer, a current transformer and a voltage transformer are subjected to electrical test, the secondary side of the current transformer has no open circuit, and the secondary side of the voltage transformer has no short circuit; checking whether relays, instruments and the like in the loop are qualified through verification; the circuit breaker and the isolating switch of the checking loop are well adjusted, and the circuit breaker is subjected to manual and electric tripping and closing tests; obtaining the checked electrical equipment; finally, testing and adjusting, namely performing power-on test on the inspected electrical equipment, and finishing setting value setting when the secondary loop test of the power receiving system is qualified; according to approved power receiving operation instruction, the power distribution cabinet is used for testing power supply step by step according to the principle of firstly carrying out high voltage and then carrying out low voltage, and firstly carrying out main line and then carrying out branch line, the operation is carried out for 60-80min, whether other problems exist or not is carefully observed and found in the test process, if the problems occur, the maintenance is carried out in time, and under the condition that the equipment is used after being tested without errors, the timing maintenance is carried out on the electrical equipment, and the timing maintenance is carried out once every 15-20 days, so that the high-safety electrical equipment circuit fault detection method can be completed.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A high-safety electric equipment circuit fault detection method is characterized by comprising the following steps:
firstly, observing whether the electrical equipment has abnormal parts or not by experienced related workers when the electrical equipment has faults, observing whether components have overheating, smoke and obvious burnt taste or not and whether high-voltage ignition exists or not by filaments of an oscillograph tube of an electronic tube, and then, carrying out loop inspection of a control system to obtain the most basic fault elimination;
secondly, analyzing equipment symptoms, wherein when no external problems appear in the observation of maintenance personnel, the maintenance personnel need to inquire the operation personnel, check the operation steps to know whether improper conditions exist in the operation, and then comprehensively analyze the abundant maintenance experience of the maintenance personnel according to the relevant data of the equipment, the maintenance data and the information provided by the operation personnel to analyze the possibility of main problems existing in the electrical equipment to obtain primary diagnosis information;
step three, detecting and determining fault points, detecting the obtained preliminary diagnosis information one by one according to the relevant information of the equipment, firstly detecting the parts easy to detect, then detecting the parts difficult to detect, and eliminating the fault problems of the preliminary diagnosis one by one in the detection process to obtain the final fault problems of the electrical equipment;
maintenance is carried out by maintenance personnel through related maintenance tools and methods according to the obtained final fault problem of the electrical equipment; attention matters in related data of the electrical equipment need to be paid special attention in maintenance, and if the maintenance is impossible, the spare parts produced by the same manufacturer need to be replaced to obtain the maintained electrical equipment;
checking, namely performing secondary loop electrification checking at first, and performing primary loop electrification checking again, wherein the current transformer and the voltage transformer are subjected to electrical tests, and the secondary side of the current transformer has no open circuit and the secondary side of the voltage transformer has no short circuit; checking whether relays, instruments and the like in the loop are qualified through verification; the circuit breaker and the isolating switch of the checking loop are well adjusted, and the circuit breaker is subjected to manual and electric tripping and closing tests; obtaining the checked electrical equipment;
testing and adjusting, namely performing power-on test on the inspected electrical equipment, and finishing setting when the secondary loop test of the power receiving system is qualified; according to approved power receiving operation instruction, the power distribution cabinet is used for conducting power test step by step according to the principle of firstly conducting high voltage, secondly conducting low voltage, firstly conducting main line and secondly conducting branch line, running for 60-80min, carefully observing and finding whether other problems exist in the testing process, and if the problems occur, timely maintaining and processing can be conducted, the high-safety electric equipment circuit fault detection method can be completed, and finally the intact electric equipment can be obtained.
2. A high-safety electric equipment circuit failure detection method according to claim 1, characterized in that: in the first step, a multimeter is adopted to test a test point at the lower end of a power switch of the control system when the loop of the control system is checked, a certain button is operated, a related contactor is pressed to be closed, the swinging condition of a pointer of the multimeter is observed, the pointer has a certain resistance value, the pointer is normal, if the pointer is abnormal, the related circuit can be tested step by step, a certain element and an auxiliary contact can be adopted, when the pointer is in short circuit to the certain element, the circuit is connected, and the situation that the current is broken or the contact is poor.
3. A high-safety electric equipment circuit failure detection method according to claim 1, characterized in that: in the fourth step, the power supply must be cut off during maintenance, the fuse is taken down, and the maintenance can be carried out after no electricity is proved.
4. A high-safety electric equipment circuit failure detection method according to claim 1, characterized in that: and in the fifth step, the primary loop refers to insulation resistance measurement and voltage withstand test, the insulation resistance value meets the specification, and the secondary loop refers to insulation resistance measurement and voltage withstand test of the weak current loop according to the specification of a manufacturer.
5. A high-safety electric equipment circuit failure detection method according to claim 1, characterized in that: and step six, under the condition that the equipment is used after being tested without errors, the electrical equipment needs to be maintained at regular time, and the regular maintenance is carried out once every 15 to 20 days.
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| CN202010308888.0A CN111474462A (en) | 2020-04-19 | 2020-04-19 | High-safety electrical equipment circuit fault detection method |
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| CN202010308888.0A CN111474462A (en) | 2020-04-19 | 2020-04-19 | High-safety electrical equipment circuit fault detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112993769A (en) * | 2021-04-13 | 2021-06-18 | 叶剑海 | Cable rapid installation detection device for power distribution cabinet |
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| CN101141088A (en) * | 2007-09-10 | 2008-03-12 | 胜利油田胜利评估咨询有限公司 | Three phase asynchronous motor checking maintenance and expenses measuring method |
| CN101931172A (en) * | 2009-06-19 | 2010-12-29 | 中冶成工上海五冶建设有限公司 | Electric debugging method of dry-quenching power distribution system |
| CN108459230A (en) * | 2018-03-09 | 2018-08-28 | 重庆兴汉电力科技股份有限公司 | Electric high-voltage equipment fault detection method |
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2020
- 2020-04-19 CN CN202010308888.0A patent/CN111474462A/en active Pending
Patent Citations (3)
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| CN101141088A (en) * | 2007-09-10 | 2008-03-12 | 胜利油田胜利评估咨询有限公司 | Three phase asynchronous motor checking maintenance and expenses measuring method |
| CN101931172A (en) * | 2009-06-19 | 2010-12-29 | 中冶成工上海五冶建设有限公司 | Electric debugging method of dry-quenching power distribution system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112993769A (en) * | 2021-04-13 | 2021-06-18 | 叶剑海 | Cable rapid installation detection device for power distribution cabinet |
| CN112993769B (en) * | 2021-04-13 | 2023-03-17 | 青岛美莱轨道股份有限公司 | Cable rapid installation detection device for power distribution cabinet |
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Application publication date: 20200731 |