Diesel generator problem
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Under normal circumstances, how many KW power motor can a 200KW diesel generator drive? By the way, which diesel generator is the best? What's the price?
It depends on your operation mode. If it is a dedicated diesel generator and electric unit, the capacity can be larger. According to the design manual, the general capacity ratio is about 5 times, but the specifics depend on the load performance curve, such as the dead center power of the pump, etc.
As I know, the generator and motor are both new and use soft starting. A 200KW generator drives a 200KW motor. The better brands of generators are Cummins and Jichai.
How many motors a diesel generator can carry mainly depends on the starting problem of the motors. If there are multiple small motors, you can bring more! The soft start of the motor is very important, so try to reduce the starting current!
It is certain that a soft start is required for large motors.
The size of the motor is very important. If it exceeds 20% of the generator capacity, it must be started with a reduced voltage start. If it is a 200KW motor, it may not work with a 200KW generator. During our use, the motor is more than 10% of the generator capacity. If it is started directly, the generator will obviously sound abnormal. It is recommended to follow the specifications.
The load it carries has a lot to do with its starting method. The better brand of generator is Cummins. We usually use this manufacturer!
We have an American Caterpillar generator, which is very good and starts quickly. It has 720KW and a current of 1300A. Our maximum operation is about 1000A and the maximum motor is 90KW. It feels good and is better than the domestic one.
It depends on how big the starting current is and how big the starting electric power is. The American Cummins Power System diesel generator set we use has stable performance and is better than the domestic one. The price is cheaper than Caterpillar.
Generally, a certain margin should be left.