GE ABB ReliaGear LV SG Installation, Operation And Maintenance Manual page 16

R E L I A G E A R ® LV S G LO W V O LTA G E S W I TC H G E A R
15
—
All of the primary circuit switching and protective
15
devices, secondary control and metering devices,
Outline of a typical load
center unit substation
control fuses and instrument transformers,
are mounted in the enclosure. The breaker
compartments include draw-out rails, stationary
breaker contacts, interlocks and necessary control
and indicating devices.
Primary section
Switch unit
—
15
Transformer
Shipping
package
The breakers are provided with self-aligning
primary and secondary disconnecting contacts,
breaker locking mechanism, and integral trip unit.
The individual sections, compartments, and
devices are described in the following paragraphs.
Figure 15 is an outline of a typical single-ended load
center unit substation illustrating the
nomenclature used for all equipment.
Load center unit substation
ReliaGear LV SG section
Shipping
package
Transition
section
A
B
Shipping
package
Breaker sections
A
A A
B B
B
C C
D D D