What do C, F, V, D and PT in the high pressure inflatable cabinet mean?

Inflatable cabinet, the full name of fully insulated and fully enclosed ring network cabinet, is also called inflatable AC ring network metal-enclosed switchgear. The SF6 gas filled in the cabinet is divided into C, F, V, D, G, PT and other units are divided into single type and common box type according to their boxes. Because of their small footprint, low cost and simple maintenance, they are widely used in various high-voltage equipment.

C: The switch adopts load switch, we generally call it C unit, which is generally used in high-voltage incoming cabinets;

F: The general load switch with fuse protection mode is mostly used in high-voltage outgoing units, which we call F unit;

V: The switch adopts a vacuum circuit breaker, which is generally matched with a microcomputer protection device. Because of its fast dividing function, this kind of incoming and outgoing line units will be used frequently;

D: Generally, when we need to turn over the busbar in the busbar, we usually need to use the lift cabinet, there is no switch in it, only the busbar, which is convenient to connect the busbars of the left and right cabinets;

PT: Generally, when a separate PT cabinet is required on the incoming side, it is mainly used to detect the busbar voltage and to take the operating power supply. It is usually matched with the load switch;

In addition, there are metering cabinets, DTUs, etc., and the specific ones should be based on the actual design drawings and terminal requirements.