[ENG] A Maintenance & Repair Guide for Power Equipment.

Welcome to our guide on maintaining power equipment designed and manufactured by Sinepower. Whether you’re using GPUs (Ground Power Unit) or SFCs (Static Frequency Converter), proper maintenance is essential to ensure optimal performance, longevity, and reliability. In this article, we’ll cover some essential maintenance tips and best practices that will help you get the most out of your power equipment investment.

As you know by now, maintenance is a critical aspect of ensuring the longevity and efficient operation of any system, equipment, or infrastructure. Two fundamental approaches to maintenance, preventive and remedial maintenance, play pivotal roles in achieving this goal. Whether you aim to prevent problems before they occur or tackle existing issues swiftly, understanding these maintenance approaches is essential for optimizing the performance and lifespan of your assets.

Proper preventive maintenance is the key to optimal operation of the equipment and will ensure a long and useful life of the system. Preventive maintenance includes regularly performed procedures designed, as the name suggests, to prevent system malfunction and obtain maximum operational efficiency. 
Remedial maintenance requires troubleshooting to repair the system. Troubleshooting the equipment involves following a logical sequence of steps which will determine the cause of an alarm and/or malfunction within the shortest time frame possible to expedite the repair and return of the equipment to normal service.

In order to safely and successfully perform maintenance on the equipment, certain safety precautions must be observed. Necessary tools, Personal Protective Equipment (PPE), and test equipment must be available. The following basic safety practices should always be practiced:

• Always be aware that hazardous voltages are present within the equipment even when the system is not operating;
• Ensure that equipment operating and maintenance personnel are thoroughly familiar with the equipment and the contents of this technical guide;
• Never wear metal jewelry such as rings, necklaces, or wristwatches while working on the equipment;
• Keep equipment cabinet doors and panels closed and secured during normal operation;
• Replace any component with the same type and rating;
• Never guess about safety procedures. In any doubt, ask someone who has the answers you need;
• Always be aware of the presence of high voltage within the equipment. Check with a voltmeter to verify that power is off and conditions are safe before attempting to make repairs, adjustments, and so on;
• Above all, always use common sense!