Improve maintenance technicians' troubleshooting skills and their troubleshooting methods

Ensuring the safety of living and production electricity in an area is the main responsibility of the maintenance electrician. The maintenance electrician can solve the fault in time by comprehensively testing the power system, and can solve the fault in the shortest time by virtue of his own skills and past work experience. Excluded, in order to ensure the normal needs of residents for production and electricity. Nowadays, China's power is widely used, and the power equipment is also diversified and complicated. Therefore, electricians must constantly strengthen their experience and skills to enrich their professional knowledge.

In any enterprise or institution, electricians are indispensable. The electrician must be able to accurately and timely judge the failure of the power system. This requires the electrician to be very familiar with the circuit maintenance knowledge and be able to solve the problem according to the specific situation. Flexible processing. In fact, the failures of the electrical system mainly include the usual maintenance and repair, the normality of the line debugging, and the reasonableness of the installed equipment and wires. The electrician can judge whether the power system is healthy or not by observing whether the illumination is stable or not. Under normal circumstances, unreasonable debugging and installation may cause abnormal lighting, common short circuit, open circuit, and even serious leakage current situation, therefore, the electrician must be able to accurately analyze the root cause of power system failure The cause of the problem is then taken to take effective measures to resolve it.

In addition, transformer failure is also very common. If the transformer is used for a long time, it will cause insulation and overheating. Therefore, the electrician should pay attention to the observation during normal times, often detect the transformer, install the insulating ceramic tube and oil protection. All methods can effectively avoid the occurrence of faults. There is also a motor fault, which mainly includes shaft cracks, shaft core wear, rotor bending, etc., where the shaft wear is more serious, it should be replaced in time; once the shaft core is found to be worn, it should be welded accurately if worn. If it is too serious, it can be machined. If the rotor is bent, the rotor should be taken out, and then the structure should be repaired according to the power system to ensure the normal operation of the motor.

Stepwise queuing method and debugging parameter method

The so-called gradual queuing method is to use a step-by-step method to analyze the specific location of a fault when a short circuit occurs, and then to troubleshoot the power system. The debugging parameter method is more suitable for the original parts used in the power system without damage, when the line is in normal contact. If the power supplier does not use the voltage correctly or debug, the power supply system will not work normally, and the power system can also bear the limited amount of power, and can not be used indefinitely. Therefore, the debugging parameter method is most suitable. .

Alternative method and shorting method

The so-called substitution method refers to the failure to determine the cause of the failure and the specific location. If the electrician suspects that there is a part in the system or a certain part is faulty, you can choose to replace the original part with other parts. Observe that the power system after replacement can not operate normally. This method is relatively inefficient and is suitable for troubleshooting with simple structure. Under normal circumstances, the short-circuit method is used in power systems with low loop current and low voltage. First, the electrician judges the position of the short circuit according to his rich experience over the years, and then shorts the wire to determine. The correctness of the electrician's judgment. In this way, the electrician must ensure that his skills are superb, experienced and troublesome. Nowadays, the use of this method in China is very rare, but this method is still used in some poor places.

Resistance, current and voltage measurement

The voltage measurement method refers to the reasonable use of the multimeter. The voltage file of the multimeter is adjusted to the most suitable position according to the actual power voltage, so that the accurate measurement can be made. The judgment standard of the fault is the observation circuit and the electric shock. An on/off occurs, or a situation that occurs intermittently. The current measurement method uses the current value of the ammeter when measuring the circuit is normal and stable, it should be judged according to the actual situation of the local electricity, although the current measurement method is relatively convenient, but also It is easy to make measurement errors. Since the user's power intensity is different at different times, the current measurement is somewhat difficult. It is usually used for power measurement in production workshops or factories. The reason for both voltage measurement and resistance measurement is similar. It is an abnormal condition for observing lines or electric shocks. This method is relatively safe and is a power measurement that is usually selected in less developed areas.

The most important material basis for an enterprise to form its own production capacity is equipment. It should allow the equipment to exert its maximum role in the process of life and production. In the actual operation process, it should be observed in the prevention. , planned to repair, maintain and use a combination. There are many types of equipment failures, professionalism is relatively strong, and the problems are particularly complicated. Both units and individuals should constantly strengthen their skills to improve their faults and minimize losses.

To improve the ability of mechanics, we should start from the following two aspects: First, the professional knowledge is solid. In this era, information is constantly changing, knowledge is always being updated, maintenance electricians can not meet the status quo, usually should pay attention to learning more, exchange skills, participate in professional lectures, understand advanced technology to improve themselves. The theoretical knowledge, and in practice through troubleshooting, strive to more reform and innovation in the work, the actual work and theoretical knowledge are combined to enhance their own level and ability. The other is to have a good professional ethics. Do not blindly judge when problems occur in the equipment, be good at listening to others' opinions, and communicate with others in a timely manner. For equipment with problems, timely report on repairs and maintenance should be made.