|
For self-contained
and pipe type cable systems per IEEE 1300 Standards
G&W GIS terminations are designed in
accordance with IEEE 1300 standards for application in gas
insulated substations rated 138 through 345kV. Termination
designs are available for application on single conductor,
low pressure self-contained or high pressure pipe type fluid
filled cables.
Features
ATA terminations feature the security of high strength, external
porcelain insulation and the proven reliability of perforated
paper roll stress control. High pressure fluid style ATA-SF
terminations utilize a gasketed stainless steel or aluminum
body supplied with a stainless steel or copper pipe stub for
field welding or brazing to a riser pipe. For low pressure
ATL-SF style units a gasketed stainless steel mounting flange
is connected to a spun copper body which permits the cable
to be sealed with a wiped lead joint.
The G&W GIS terminations cataloged in
this section represent standard product designs. Variations
in the type of interface connections, SF6 equipment mounting
seals and cable entrance methods are also available to match
your particular system design.
Cable
Types |
 |
Low to medium
pressure, fluid filled, self-contained paper insulated
cable to 100 psi. |
|
High pressure, fluid filled,
pipe type paper or PPP/PPL insulated cable to 400 psi.
|
Ordering
Information
The following steps are needed for ordering: |
| a) |
Select the terminator
by catalog number based on voltage, BIL and conductor
size |
| b) |
Provide a complete description
of the cable including the conductor material and diameters
over insulation, and shielding system. |
| c) |
Specify connection lug
required based on GIS manufacturer specifications. |
| d) |
Specify nominal operating
pressure of cable. |
| e) |
Specify nominal operating
pressure and interface dimensions with SF6 equipment.
|
| f) |
Specify optional connection
lug, if desired. |
Catalog number includes a flat bus interface
connection, corona shield, ground shield, porcelain insulator,
aluminum body and flange, semi-stop oil seal, check valves
and filters, perforated paper roll stress relief material,
riser pipe insulator and base plate insulators.
Options include flat or vertical style pad
connections, and horizontal pad for tulip connection.
Electrical Ratings:
| Max.
Voltage |
138
- 345 kV |
| BIL Impulse |
650
- 1175 kV |
| Continuous
Current |
Same
as cable |
| Cable Range |
250
- 3000 kcmil
(127 - 1500 mm2) |
|
