What is an Aviation Power Relay and its Repair Solution?

1. What is an Aviation Power Relay and its Repair Solution? Almost each aircraft is fitting with aviation relays. These relays control large currents flow while utilizing the power of the small currents. These control currents that range from high amperage accessories like starter, battery, lights, electrical actuators, or hydraulic pumps. These are electrical components, particularly in use for controlling the flow of power in different systems on an aircraft and are also responsible for switching power on or off to components or subsystems and are used to protect from damages happening due to over currents or electrical faults. Some Components of Power Relays Are: Main Power Relays: These connect and disconnect different sources of power like batteries or generators from varied electrical systems on the aircraft. Auxiliary Power Unit: Auxiliary Power Unit is used for controlling the APU operations. It is a gas turbine engine to give electric power and air conditioning when the aircraft is standing on the ground. Starter Relays: These are used for starting the aircraft’s engines Landing Gear Relays: Landing gear relays control the extension and retraction of the airplane's landing gear. Flap and Slat Relays: These are used to control the extension and retraction of the aircraft's flaps, and slats also are used to increase lift during takeoff and landing.

2. There are also many other types of power relays used in aircraft, and their functionalities and characteristics can vary depending on the aircraft and the system. However, NAASCO is coordinating with other aircraft to create a cost-effective repair process for power relay piece parts. As the brand name Sim Met repair solutions, the company developed cost-effective solutions for the relay contacts in their Boeing 727 aircraft. The repair process is flawless, offering amicable repair solutions. The Sil-Met contact procedure can save the company thousands of dollars otherwise levied for maintenance charges. The company has till now repaired thousands of relays, contactors, and terminal boards for global customers. Each product is refurbished instead of buying new and filling landfills with non-repaired units. However, the repair of power relays depends on many different factors and the nature of the problem. Broadly below are the steps involved in the repair of power relays: Switch off the Power: Before starting any repairs, the best is to switch off the power supply to the equipment to prevent accidents from happening. Remove the Relay: Remove the relay from its panel, which involves disconnecting wires and removing fasteners that keep the relay in place, Detect Relay: Once you have removed the relay, inspect it to find any damage or signs of its wear and tear. Check the signs for any corrosion or damage to the relay or its components. Change Faulty Parts: If you find any component of the relay faulty, like a defective coil or contact, they require replacing and also might need soldering or other particular skills. Clean the Relay: After completing the repairs of replacing the faulty parts, the best is to clean it to remove any contaminants that would interfere with its

3. operations, After reassembling and testing the relay, it is best to repair and clean it. You need to reassemble parts, do requisite testing, and finally reinstall it to its original position and reconnect the disconnected wires. It is pertinent to note that these aviation relays repairs can be complex and require specialized knowledge and tools. Cutting-edge technologies allow contacts, power relays, and terminal boards to get renewed, repaired, and kept back into service. The power relay uses Sil-Mets procedures for operations in commercial and military aircraft and helicopters.