2, protect the high pressure rotary motor using lightning arrester, generally USES magnetic blow arrester, lightning arrester should be installed near the generator.In general, lightning arrester can be installed in the electrical outlet;Such as pick in each set of generator is not more than two on the bus, or stand-alone capacity of less than 500 kw, and with the distance of the surge arrester is not more than 50 m, lightning arrester can also be installed in each group on the bus

3, when rection motor neutral point can lead to, and not directly grounded magnetic blow or ordinary valve should be installed on the neutral type arrester.Lightning arrester highest rated voltage should not be lower than the generator phase voltage operation.

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