1. It can be divided into:
(1) Power use: Used for transformers and voltage transformers in power transmission and distribution lines; Busbars and circuit breakers used as booster stations in power plants. It has high specificity and is generally only applicable to a certain type of power supply system or areas with a large power supply range.
For example, the main transformer in the high-voltage distribution room with a voltage level of 110 kV and above, and the high-voltage switchgear with a voltage level of 10 (6) kV and above belong to this category of products.
(2) Industrial use: mainly used for power conversion of various power loads in industrial and mining enterprises, such as heating furnace power supply and rolling arc furnace power conversion in the metallurgical industry; DC operating power supply for the power transmission device of mining machinery; The driving power supply for chemical process pumps in the petrochemical industry and the driving power supply for lifting motors in cranes all belong to this category of products.
According to the protection methods, it can be divided into:
(1) Non protective: refers to products without rain shelters or other shading facilities, which have simple structure, low price, and easy installation, making them widely applicable in the market.
(2) Protective type: refers to products with rainproof sheds or other shading facilities, which have the advantages of small size and aesthetics, and improve safety performance and are favored by users.