Apart from the excellent output, big machines mean expensive and also a lot of liability. If you are dealing with electrical power machines like 
generators, transformers or transmission lines, then you need to start considering hiring a control and protection company. Control and protection companies specialize in protecting power grids from anomalous system conditions and also initiate corrective actions to the system. However, hiring the right company can prove to be a task. Here are a few tips on the ideal ones.
High Technology and knowledge
Multiple designs can be used to make power systems. Companies that have done their research and are up to speed with every new trend in the market will be able to recognize the type of system you are working with. When the engineers know the structure in and out, it also becomes elementary for them to identify the root of the problem. High technology equipment comes in handy when fixing the problem. The sooner the problems are solved, the easier it shall be for you to go back to your regular routine.
A Great Reputation
When people are pleased with services rendered by individual companies, they often leave good comments and spread good things about the 
company. It takes a long time for a company to build an incredible reputation. It is also clear that the status could crumble within no time if inadequate services were given out. Therefore, companies with good reputations do their best to ensure they deliver quality work. This aspect makes them ideal candidates to choose from.
Experience
Working in the same field for a long time gives technicians a mastery of skills that is not easy to come by. If the engineers you hire have worked with a big machine like yours before, they will be aware of the common problems that the appliance runs into. Therefore, the fixing time will be significantly reduced.