In industrial production, high voltage power units, as core power equipment, have a direct impact on the proper functioning of enterprises in the event of failure. As a major industrial city, the demand for high voltage power maintenance continues to grow. Today, you will be presented with the daily work of high voltage machine maintenance staff, common trouble management methods and career development proposals to help practitioners and businesses in need to become more fully aware of this technical work。
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Core skills of high voltage machine maintenance staff
High voltage power maintenance is an integrated technical effort to integrate machinery, electrical and material, and operators need to have the following capabilities:
1. Diagnosis of failure: electric problems are judged by hearing, seeing, measuring, etc., such as acoustic acoustic bearings, circuit short circuits, loose wires, etc。
2. Electrical knowledge: familiar with electrical circuit structure, insulation level, wiring, mastering the use of tools such as rock-watches, universal watches, etc。
Mechanical maintenance skills: operations such as axle replacement, rotor motion balance, end cover seal, etc., require precision control of installation。
Ii. Common malfunctions and rapid maintenance techniques
1. Axis failure management:
Symptoms: the electric power operates with a "bum" noise or an increase in vibration。
Treatment: after the opening of the initial cover, check the bearings, if they exceed 0. 3 mm or crack, and replace the bearings in a timely manner. It is recommended that import brand bearings such as nsk and skf be selected, with a life expectancy of more than two times that of ordinary bearings。
2. Insulation damage repair:
Symptoms: excessive or short-circuit burning of electrons。
Treatment: insulation resistance is detected using 5,000 mega-eat meters, less than 0. 5m re-convenements. In retrusion, the number and line diameter shall be restored to the prototype, and the varnish shall be dried for more than two hours。
Tunnel failure screening:
Common method: use of an electrical device dedicated to ground resistance test, which can quickly locate the insulation break point, which is to be repaired by sealing the epoxy resin。
Iii. Maintenance security and normative operations
High voltage power maintenance involves high voltage electrical operations, and safety is particularly important:
1. Power outages: a 2500v high-voltage test must be used to confirm that there is no electricity and to display a "prohibited gate" warning card。
2. High pressure test protection: when conducting a direct flow resistance test, insulation gloves, insulation boots and a security fence shall be used in the test area。
3. Tool specifications: check for cracks before using insulation tools, and electrical tools must be well located。
Career development and learning advice
1. Skills upgrading: it is recommended that electricians ' certificates (high voltage class), maintenance technicians ' certificates, systems learning norms such as the technical instructions for electrical repairs。
2. Experience-building: participation in large-scale electrical maintenance projects, such as wind and hydropower, and experience in complex trouble management。
3. Industry trends: with the development of new energy industries, the demand for the maintenance of permagnetic high voltage electric units has increased, requiring attention to new technologies, such as permanent magnetic demagnetic detection。
High voltage power maintenance is an important technical support for ensuring industrial production, and operators in the zhouzhou region need to continuously refine their skills and promote industry standardization while ensuring the safe operation of equipment. If your enterprise is in need of electrical maintenance, it is recommended to select qualified professional teams to ensure quality of maintenance and safety of production。
