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 LANTNAVFACENGCOM A&E GUIDE
3/93
DESCRIPTION
A.3.2.3
Provide the following descriptive information on the one-line/riser
diagram/drawings:
a. Transformer type (e.g., pad mounted, pole mounted, station type, unit
substation, etc.).
b. kVA.
c. Phase (e.g., three phase or single phase).
d. ANSI C57.12.20, "Overhead-Type Distribution Transformers, 500 kVA
and Smaller: High-Voltage, 34,500 Volts and Below; Low-Voltage,
7970/13800Y Volts and Below," designation of voltage ratings
(example: 11.5 kV - 208Y/120 volt).
e. Primary and secondary connection (when using single-phase units for
three-phase service, specifically indicate how the units are to `be
connected, i.e., connect delta-wye grounded for 208Y/120 volt
secondary service).
A.3.3
REGULATORS
a. Include the following information on the one-line diagram/drawings:
(1) kVA
(2) Line current at full regulation
(3) Voltage
(4) Phase
(5) Regulator type (e.g., step-voltage, induction, etc.)
(6) Style (e.g., station type, distribution, etc.)
b. Provide the following additional information in the specifications:
(1) Insulation type (e.g., oil, etc.)
(2) BIL
Attachment A-19
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