GE Industrial Solutions AKD-20 Low Voltage Switchgear - Manuel (Page 14)

AKD-20 Low Voltage Switchgear
Chapter 2. Receiving, Handling, and Storage
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All of the primary circuit switching and protective devices,
secondary control and metering devices, control fuses, and
instrument transformers are mounted in the enclosure. The
breaker compartments include drawout rails, stationary breaker
contacts, interlocks, and necessary control and indicating devices. 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.
Fig. 3-2. Outline of a typical AKD-20 Load Center Unit Substation
Figure 3-2 is an outline of a typical single-ended load center unit substation illustrating the nomenclature used for all equipment.