A restaurant, an oil fume purifier and four refrigerators need to buy a 35kW-40KW generator. It's three-phase electricity The average single-phase electricity consumption is about 9KW, and the total power is 27KW. In order to ensure no overload, buy a 35-40KW generator.

1, the selection of generator should be considered from the following points: determine the power of electrical equipment. If the power of the electrical equipment is 300KW, the 300KW generator cannot be selected, and the starting current should also be considered.

2. Electrical equipment should overcome inertia to do work when starting, and the starting current is 2-7 times of the actual current.

3. Choose the diesel engine brand of the generator, understand the starting current, and determine the size of the generator to use. The performance index of generator accounts for a considerable proportion. The power source of generator is diesel engine, which has sufficient power, convenient maintenance and low failure rate.