In water-cobalting areas, the stable operation of direct-flow electric power units, which are important power units in industrial production, has a direct impact on enterprise efficiency. Today we talk about the skills needed by straight-flow maintenance personnel, as well as the ways in which common malfunctions are handled, to help businesses and maintenance personnel address the power problem more efficiently。
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Sales maintenance; electrics, transformers
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I. Required skills of straight-flow maintenance staff
1. Expertise reserve: familiar with the structural principles of the direct current power plant, including the functions and interactions of the power hubs, magnetic circuits and core components such as transducers. Understanding the characteristics of different brands of electric power (such as siemens, abb, etc.) facilitates targeted maintenance。
Tool use capabilities: proficiency in the operation of detection equipment such as universal meters, oscillators, capable of accurate measurement of electrical voltage, currents, velocity, etc. (b) a mastery of the standard use methods for electrical dismantling tools (e. G. Rama, axle heaters) to avoid secondary damage。
3. Fault diagnostic techniques: rapid location failure by listening, seeing, measuring, etc. For example, the electric acoustics may be abrasive wear or rotor imbalance; the problem of overheating may result from short circuits or heat dissipation。
Ii. Common direct current power failure and disposal
1. Turner failure: when the surface of the switcher is incinerated, blackened or worn, it must first be smoothed with sandpaper and, in serious cases, car sharpened. At the same time, the exposure of the electric brush to the converter is checked and the spring pressure is adjusted to the standard value (usually 1. 5-2. 5n)。
2. Power hub circuit failure: when bypassing short circuits, the value of electrical resistance can be judged by a mass gauge. Local repairs may be carried out if the short road points are visible; if the rounding group is severely burned, the sub-circle will need to be re-engineered to ensure that the thickness of the insulation layer meets the original design criteria (usually 0. 1-0. 2 mm)。
3. Magnetic system problems: when a magnetic circuit group is cut off or grounded, the insulation resistance (0. 5 m thallium) is detected using a rock gauge. After repair, magnetic tests are performed to ensure that the electric power is stabilized within a rated range (e. G. 1,500r/min)。
Iii. Maintenance care
1. Safety code: the power outage must be preceded by warning signs, insulation tools and protective gloves. During wet environmental operations, the electrical wiring box is checked in advance to avoid short-circuiting。
Maintenance process: strict adherence to the principle of “test before dismantling, before difficulties”. For example, when the power is difficult to start, priority is given to checking the power supply and the control line, and the mechanical transmission component is re-examined to avoid the increased cost of blind dismantling。
3. Daily maintenance proposal: regular cleaning of electrical units (1 per quarter) to check whether the axle lubricant is spoiled (recommended to be replaced every 5,000 hours of operation) to ensure the operation of the electrical ventilation and heat system。
Direct-flow maintenance staff in water catchment areas need to build up experience in practice and develop standardized maintenance processes in conjunction with equipment manuals and failure cases. When selecting maintenance services, enterprises may give priority to examining whether maintenance teams have original plant technical certification to safeguard the quality and useful life of electrical maintenance。
