Typical Multiple Section Switchgear Arrangement
Section Dimensions–600 A switch shown
| Voltage | Dimensions: in. (mm) | ||||
|---|---|---|---|---|---|
| A | B | C | D | Depth | |
| 2.4–17.5 kV | 14.75 (375) | 29.50 (750) | 90.00 (2286) | 11.00 (279) | 37.25 (946) |
| 25.8–38 kV | 29.50 (750) | 39.37 (1000) | 108 (2743) | 24.00 (610) | 59.12 (1502) |
| Typical Indoor Front Views | ||
Duplex Mains with Metering and One Feeder Switch |
Duplex Mains for Transformer |
Main Switches on Ends with Feeder Switches in Center |
| Typical Single Line Diagrams | ||
Bottom Cable Entry and Exit |
Bottom Cable Entry with Connection to Transformer |
Top Cable Entry and Exit |
NOTE: When preparing HVL/cc lineups, group all top-entry switches
together and all bottom-entry switches together to avoid transition
sections. 2.4–17.5 kV: Standard shipping splits are two sections
with a maximum of five 14.75-inch (375 mm) sections. 25.8–38
kV: Standard shipping splits are two 29.50-inch (750 mm) sections
or one 39.37-inch (1000 mm) section.
Back-to-Back HVL/cc Section Configuration–Indoor Only (NEMA 1) 17.5 kV Max.
Side View (Square D brand DIN style fuses shown in illustration as reference)
Top View
NOTE:
-
Filler panels at top and end seal the lineup.
-
3.5-inch (89 mm) collar between Sections 4 and 8.
-
Sections 4 and 8 are always assembled and shipped as a single section.
-
1200 A bus is optional.
-
Available for both Application A and Application B switches.
-
Except for live bus indicators, no other devices or components can be placed in the back-to-back bus compartments.
-
Lineups are not required to be of equal lengths. End filler panels allow lineup to extend in uneven lengths.
Typical Multiple Section Switchgear Arrangements with Front Access Only
Section Dimensions
| Voltage | Dimensions: in. (mm) | |||
|---|---|---|---|---|
| A | B | C | D | |
| 5–17.5 kV, 600 A | 14.75 (375) | 38 (965) | 20 (508) | 29.50 (750) |
| 5–17.5 kV, 1200 A | 29.50 (750) | 38 (965) | 29.50 (750) | 29.50 (750) |
NOTE: When laying out HVL/cc lineups, group all top entry switches
together and all bottom entry switches together to avoid transition
sections. The switch occupies the entire enclosure from front to back,
so cables cannot enter and exit from the same section.
Incoming Line Hot Sequence Meter Section with Bottom Cable Entry and Exit (Feeder Line-up Application A) |
Main-Main Center Application B Located with Feeders (Application A) on Each Side (with Bottom Cable Entry and Exit) |
Application B Main Switch with Cold Sequence Meter Section and Two Feeder Switches Application A (with Bottom Cable Entry and Exit) |
Application B Main Switch with Surge Arresters and Feeders (Bottom Cable Entry and Exit) |
Main-Tie-Main Lineup with Feeders on Outside Ends (Top Cable Entry and Exit) Mains and Tie are Application A and Feeders are Application B |
Application B Main Switch with Top and Bottom Exit Feeders (Requires Extra Transition Sections/ Not Recommended) |