Fig. (26) Indirect Cable Connection
GIS (Gas Insulated Switchgear) Connection
There is an increasing demand for GIS in substations
from the standpoint
of site-acquisition difficulties and environmental
In keeping with this tendency, GIS connection-type Transformers
are ever-increasing in their applications.
The SF6 gas bus is connected directly with the Transformer
coil terminal through an oil-gas bushing. Oil-gas
is composed of a Transformer-side flange and an SF6
gas bus-side flange,
permitting the oil side and the gas side to be
completely separated from each other.
Fig. (27) Direct GIS Connection