HAWALL,
F&SNO.
17004
USER
UNA LOA
SCIENTIFIC AND SUPPORT
TITLE
Power
STRUCTURE. FACILITY NO.
JTF
SCIENTIFIC STATION NO.
None
BOD
None
FOD
FUNDING
AGENCY
AEC
($000)
ENGR
PRE-GO
Prior Cost
PROC
CONST
Included in F&S Nos.
TOTAL
FURN
17002 and 17005
PRIOR YEARS
ENGINEERING
Drawings:
Completed.
JS 104-069-F4
F 104-069-El
JS 104-069-E7
JS 104-071-E2
JS 104-069-E9
F 104-080-El and E2
PROCUREMENT
Completed.
CONSTRUCTION
The Hilo Electric Company's transmission line serves the
Mauna Loa site with 12.4 kv power.
A 120/208-12,400 volt,
75 kva,
3 phase
transformer transforms the incoming power for use by the AEC facilities. A
90 kw diesel generator serves as a back up source of power in the event of
commercial power failure. Generator start-up and transfer of power is
manually effected.(Completed in 1967.)
Experience has shown that the present generator at the Mauna Loa site is
inadequate. This 90 kw generator was derated to 60 kw capacity primarily
due to the great altitude of the site, but actually encounters difficulty in
providing an output of 45 kw. The generator will be replaced with a larger
unit capable of providing satisfactory backup capability and with less erratic
fluctuations in voltage and frequency.
17-3
VOL II