SF 6 Live tank circuit breakers

1. Erik Backström, High Voltage Circuit Breakers SF6 Live tank circuit breakers Overhaul kit

2. Overhaul kit Customer value proposition Value proposition for customer, Overhaul kit • Contains all parts, kits and instructions necessary for a circuit breaker • overhaul which: • Reduces risk for future failure by following factory recommendations. • Ensures circuit breaker lifespan and extension of the lifespan. • Reduces outage time for maintenance works. • Reduced troubleshooting time on site. • Ensures only one outage. • You have all covered all eventualities. • Enables easy handling and planning of stock and project parts procurement, as well as inventory management. • By following factory recommended kits and assembly instructions the • the required competence level is reduced.

3. Overhaul kit FAQ ? Frequently asked questions by customer • What is included in the overhaul kit? • The overhaul kit includes several smaller kits called sub-kits. Each • sub-kit is designated for specific parts of the pole or operating • mechanism on the breaker. • Each sub-kit contains recommended parts to exchange during a • overhaul. • Does the kit come with maintenance instructions? • Every sub-kit has its own maintenance instruction included in the box. • How does the kit get restocked again after use? • Option 1. It is possible to find the part number of each sub-kit inside • the overhaul kit. The customer can use the order template included in • The overhaul kit (preprinted article numbers) and send it to ABB. • Option 2. Each overhaul kit box has its own serial number, and the • customer can contract ABB to maintain and restock the box regularly. • It is required that the customer signs an agreement for that service. • Is it possible to buy individual parts of the sub-kits? • Yes provided that a reference to the kit box serial number is provided • with the request for quote, however it is important to understand that • the sub-kits are designed to meet specific requirements for • maintenance quality and the entire sub- kit should be used during a • overhaul.

4. Overhaul kit FAQ ? Frequently asked questions by customer • When is the overhaul kit used on the circuit breaker? • It should be used when the breaker has reached the end of its • Lifespan or if a failure has occured. Please see separate presentation • about circuit breaker lifespan for more information. • Click here>>>>> • What competence level is required to perform the work involved? • Competence level C for the designated breaker type the kit is made • for. Please see separate presentation for training concept. • Click here>>>> • Are there trainings available on how to perform preventive • maintenance? • Yes each breaker type has separate trainings available for the different • competence levels required during the breaker lifespan. Please see • separate presentation for training concept. • Click here>>>>