2.6.1.7
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NOTE: Follow Using Agency policy regarding
protective device tripping and annunciation. Show
remote control features including any annunciator
system connections on the drawings.
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Miscellaneous items for a transformer shall include the following:
a.
A weatherproof transformer terminal cabinet for circuits which are
connected to devices not mounted integrally on a transformer, but
remotely (such as in switchgear units) including interconnection
terminals for any future cooling circuits. The gauge of metal for
the cabinet shall be the manufacturer's standard. Color of the
cabinet shall match the color of the associated transformer. The
door or doors of the cabinet shall be equipped with padlocking
provisions.
b.
Raceway connections and associated interconnection wiring between
a transformer terminal cabinet and any remote devices which
operate in conjunction with transformer-mounted devices, including
necessary wiring for remote control features [and for [future]
[cooling circuits]]. Remote control features include the
[tripping of associated [primary] [and] secondary circuit
breakers] [and] [the actuation of the associated annunciator
circuits] by the indicated transformer control or accessory
contact.
c.
The transformer shall be shipped from the factory already filled
with oil, if possible. If the transformer must be vacuum filled
in the field, a four inch NPT nipple, with cap for the vacuum
line, shall be added to the cover, away from the fill valve.
2.6.2
Primary Unit Substation
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NOTE: Normally, specify primary unit substations
for incoming nominal line voltages of 46 kV or
higher.
**************************************************************************
Primary unit substations shall comply with ANSI C37.121, shall be suitable
for outdoor installation, and shall consist of transformer section
equipment [directly connected] [connected by metal-enclosed bus duct] to
outgoing section equipment.
2.6.2.1
Transformer Section Equipment
Transformer section equipment shall comply with the requirements for power
transformers in paragraph SUBSTATION EQUIPMENT.
2.6.2.2
Outgoing Section Equipment
Outgoing section equipment shall comply with the requirements of paragraph
OUTGOING METAL-CLAD SWITCHGEAR.
SECTION 16311A
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