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1. Be familiar with circuit principle and determine maintenance plan.
When the electrical system of a device fails, don't be in a rush to disassemble. First, understand the phenomenon, passing, scope and reason of the failure of the power equipment. Be familiar with the basic working principle of the equipment and electrical system, and analyze the specific circuit. Understanding the interconnections between the various levels of the circuit and the context of the signals in the circuit, combined with practical experience, after careful consideration, to determine a scientific maintenance plan.
For example, to a unit in the adjustment of the cable fault locator to find cable fault point, need to communicate and manage the technical personnel of the cable, efficient access to relevant information, making maintenance plan. The type of cable fault is judged according to the insulation resistance of the measurement, and then the method is tested. In this way, it can achieve the effect of "half the effort", otherwise, it is often "half the effort".
2. Lead loss and rear circuit.
Electric power equipment is based on the mechanical principle of electric, especially the advanced equipment of electromechanical integration. The mechanical and electronic functions are organically combined, which are two parts of the whole. Often mechanical components fail, affecting the electrical system, and many electrical components do not function. Therefore, do not be confused by the surface phenomena, the electrical system failure is not all the problems of the electrical itself, it may be caused by the failure of mechanical parts. Therefore, the fault of the mechanical system can be overhauled first, and the failure of the electrical part will be eliminated, and the result will be twice the result.
3. Simple and complicated.
The troubleshooting needs to be handled in the simplest and most appropriate way, with a complicated and accurate method. When troubleshooting, first eliminate the intuitive, obvious, simple common failures. It is difficult to troubleshoot after the difficulty.
4. First repair the disease, then attack the complicated disease.
It is common for electrical equipment to produce the same type of failure. Because common disease is more common, accumulated experience is more abundant, can quickly eliminate. This allows you to focus and time to eliminate the less common, difficult, and wacky problems, simplify the steps, narrow the scope, and improve the speed of maintenance.
5. External debugging and internal processing.
External refers to all kinds of switches, buttons, ports and indicator lights outside the electrical equipment. Internal means the printed circuit boards, components and various connecting wires inside the electrical equipment housing or seals. First, external debugging, and then internal processing, is to use the switch, travel button, button and other debugging inspection on the electrical equipment panel to narrow down the fault scope without removing the electrical equipment. First of all, remove the fault caused by external parts, then troubleshoot the machine, and avoid unnecessary disassembly.
6. No power measurement, and then electrical test.
First of all, in the case of power failure, the power equipment should be checked and repaired: the power can be energized, and then the power equipment can be checked and confirmed. For many faults, the electrical equipment can not be immediately energized, otherwise, the fault scope will be extended to burn more components, resulting in unnecessary losses. Therefore, before the failure machine is energized. First, the resistance measurement, taking the necessary measures, can be repaired.
7. First public circuit and rear special circuit.
If the common circuit of any electrical system fails, its energy and information can not be transmitted and distributed to specific special circuits. The function of the special circuit will be affected and the performance will not work. If the power of an electrical equipment fails, the whole system cannot function properly, and the energy and information transmitted to various special circuits cannot be realized. Therefore, the fault of electrical equipment can be eliminated quickly and accurately by following the order of first public circuit and later special circuit.
8. Summarize experience and improve efficiency.
Power equipment has a wide range of problems, such as odd and strange. Any defective electrical equipment maintenance, should put the failure phenomena, causes and maintenance after a record, skills, experience in special notebook, learning to master all kinds of new type of power equipment of mechanical and electrical theory knowledge, be familiar with its working principle, maintenance experience, the own experience to a theory. Under the guidance of theory, specific fault analysis can be accurate and quick to eliminate the fault. Only in this way can you train yourself to be an expert in troubleshooting power failures.
When the electrical system of a device fails, don't be in a rush to disassemble. First, understand the phenomenon, passing, scope and reason of the failure of the power equipment. Be familiar with the basic working principle of the equipment and electrical system, and analyze the specific circuit. Understanding the interconnections between the various levels of the circuit and the context of the signals in the circuit, combined with practical experience, after careful consideration, to determine a scientific maintenance plan.
For example, to a unit in the adjustment of the cable fault locator to find cable fault point, need to communicate and manage the technical personnel of the cable, efficient access to relevant information, making maintenance plan. The type of cable fault is judged according to the insulation resistance of the measurement, and then the method is tested. In this way, it can achieve the effect of "half the effort", otherwise, it is often "half the effort".
2. Lead loss and rear circuit.
Electric power equipment is based on the mechanical principle of electric, especially the advanced equipment of electromechanical integration. The mechanical and electronic functions are organically combined, which are two parts of the whole. Often mechanical components fail, affecting the electrical system, and many electrical components do not function. Therefore, do not be confused by the surface phenomena, the electrical system failure is not all the problems of the electrical itself, it may be caused by the failure of mechanical parts. Therefore, the fault of the mechanical system can be overhauled first, and the failure of the electrical part will be eliminated, and the result will be twice the result.
3. Simple and complicated.
The troubleshooting needs to be handled in the simplest and most appropriate way, with a complicated and accurate method. When troubleshooting, first eliminate the intuitive, obvious, simple common failures. It is difficult to troubleshoot after the difficulty.
4. First repair the disease, then attack the complicated disease.
It is common for electrical equipment to produce the same type of failure. Because common disease is more common, accumulated experience is more abundant, can quickly eliminate. This allows you to focus and time to eliminate the less common, difficult, and wacky problems, simplify the steps, narrow the scope, and improve the speed of maintenance.
5. External debugging and internal processing.
External refers to all kinds of switches, buttons, ports and indicator lights outside the electrical equipment. Internal means the printed circuit boards, components and various connecting wires inside the electrical equipment housing or seals. First, external debugging, and then internal processing, is to use the switch, travel button, button and other debugging inspection on the electrical equipment panel to narrow down the fault scope without removing the electrical equipment. First of all, remove the fault caused by external parts, then troubleshoot the machine, and avoid unnecessary disassembly.
6. No power measurement, and then electrical test.
First of all, in the case of power failure, the power equipment should be checked and repaired: the power can be energized, and then the power equipment can be checked and confirmed. For many faults, the electrical equipment can not be immediately energized, otherwise, the fault scope will be extended to burn more components, resulting in unnecessary losses. Therefore, before the failure machine is energized. First, the resistance measurement, taking the necessary measures, can be repaired.
7. First public circuit and rear special circuit.
If the common circuit of any electrical system fails, its energy and information can not be transmitted and distributed to specific special circuits. The function of the special circuit will be affected and the performance will not work. If the power of an electrical equipment fails, the whole system cannot function properly, and the energy and information transmitted to various special circuits cannot be realized. Therefore, the fault of electrical equipment can be eliminated quickly and accurately by following the order of first public circuit and later special circuit.
8. Summarize experience and improve efficiency.
Power equipment has a wide range of problems, such as odd and strange. Any defective electrical equipment maintenance, should put the failure phenomena, causes and maintenance after a record, skills, experience in special notebook, learning to master all kinds of new type of power equipment of mechanical and electrical theory knowledge, be familiar with its working principle, maintenance experience, the own experience to a theory. Under the guidance of theory, specific fault analysis can be accurate and quick to eliminate the fault. Only in this way can you train yourself to be an expert in troubleshooting power failures.
