ALP Transfer Inspection Report

Animas -La Plata Project
Feb 13, 2013 Draft Transfer Inspection Report
TRANSFER ISSUE
STIPULATION
Labels do not match those
Reclamation will install a disconnect switch, to allow for testing
in the Standing Operating
Reclamation will label the ACP to match the SOP.
Procedures (SOP)
that the dam outlet works will function using the generator set.
9. Motor Control Panel
The 480 volts, 3 -phase motor control center provides magnetic motor starters for the HPU,
sleeve valve, 48" and 36" butterfly valves and the tunnel ventilation system. Breakers are
also provided for security gate, building heaters, power receptacles, control room
ventilation, and transformer to 120 volt power and loads.
TRANSFER ISSUE I STIPULATION
Need ArcFlash labels I Labeling will be completed by Reclamation.
10. HPU oil pumps (MO -1 and MO -2) controls
Two across - the -line magnetic contactors located in the motor control center start the pump
motors. Separate 120 -volt control power transformers provides the control power and
service is determined by selector switch setting at the ACP.
D. Other Dam Appurtenances
1. Engine- Generator Set and Automatic Transfer Switch
A liquefied petroleum gas (LPG) engine - generator set (Cummins /Onan Model GGKB) is to
provide standby power for the Ridges Basin Outlet Works equipment. The set will provide a
continuous electric output of not less than 125 kilowatts (156 kVA at 0.8 power factor) at
480/227 volts, three phase, and 60 hertz. The engine - generator set is an indoor stationary
unit, complete with engine, cooling system, fuel components, starting system, supervisory
and control equipment, vibration isolators, generator, excitation and voltage regulation
system, and exhaust systems.
The engine - generator is connected to the motor control center (MCC), therefore all systems
in the control room, gate /valve room, and gate chamber are connected to this auxiliary
power system.
TRANSFER ISSUE
STIPULATION
Reclamation will install a disconnect switch, to allow for testing
There is no disconnect
the generator set under load. A test will be conducted to ensure
switch available for testing
that the dam outlet works will function using the generator set.
2. Stilling Basin Well Sump Pumping Unit
The configuration and layout of the electrically operated stilling basin well sump pumping
unit, located in the outlet works control house stilling basin well, was designed to evacuate
the well of any seepage or drainage water that could accumulate in the stilling well when
the outlet works sleeve valve is not being used. The pumping unit discharge is connected to
corrosion - resistant piping that is routed to the outlet works chute for disposal of the waste
water.
Transferred Works Inspection 8 Animas -La Plata Project