4.3　Mobile Box-type Substation Vehicle

The mobile box-type substation vehicle is also called the load transfer vehicle,which is a mobile power supply equipped with a box-type substation.A set of high-voltage load switches and low-pressure air switches are installed on the high and low pressure sides of the box-type substation.Through the load transfer,non-interruption maintenance of the distribution transformer on the pole can be achieved and the power can be temporarily taken from the high voltage line to supply power to the low voltage user.(https://www.daowen.com)