Amend 0004_E-103.pdf
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- Solicitation number
- W9128F25RA008
About this file
This is a technical drawing (E-103) from the U.S. Army Corps of Engineers Omaha District for a Powerhouse 1 Cubicle Room Switchgear Upgrade at Fort Peck Dam in Missouri River. The document details a comprehensive electrical infrastructure modification, including replacing existing lighting panelboards, installing new 15kV circuit breakers and cable buses, reconnecting transformers, and upgrading switchyard connections. Specific technical tasks include installing a new 15kV, 4000A bus connection between switchgear rooms, routing feeder cables through cable tunnels, disconnecting and reconnecting various transformers (KW6A, KY4A, KZ2A), and implementing new medium-voltage aluminum bus structures and support systems.
The project is scheduled for June 2025, with a solicitation number W9128F25RA008, and involves precise electrical infrastructure modifications in the powerhouse switchyard. Key technical specifications include installing new underground conduits, connecting new structures to the existing ground grid, verifying field locations and dimensions, and implementing Kirk key interlocks between 15kV disconnect switches. The drawing provides a detailed plan view of transformer locations, equipment positioning, and cable routing, with red markings indicating new equipment to be installed, emphasizing the comprehensive nature of the electrical system upgrade.
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Text version
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NK LJH
KV7A
TRANSFORMER
GCB762
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RICHARDSON
COULEE LINE
WHATELY LINE
TRANSFORMER BAY 3 TRANSFORMER BAY 4TRANSFORMER BAY 2
300KW GEN
CONDUIT
CONTROL
CONDUIT
CONTROL
624 824A 824B 1024 724 1124
SHUNT REACTOR
KW8A
SHUNT REACTOR
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SEE NOTE 2
SEE NOTE 3
NOTE 8
CONDUIT TO KX5A (T5)
FEEDER CABLE AND
NEW UNDERGROUND
SEE NOTE 9
KX5A
(T5)
AND SUPPORT STRUCTURE. SEE NOTE 5
15KV ALUMINUM BUS SYSTEM
SEE NOTE 4
13.8KV LINE
SEE NOTE 10
SEE NOTE 11
APPROXIMATE LOCATION
LIGHTING PANELS PP7 & PP7
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1. BOLD/ RED INDICATE EQUIPMENT TO BE INSTALLED
MFP-OPN93E211.3, AND MFP-OPN93E530.1
DRAWINGS ED-646 AND E-646 AND REFERENCE DRAWINGS MFP-OPN83E201.3,
TRANSFORMERS T7 AND T8 WITH NEW EQUIPMENT. SEE CONTRACT
REPLACE EXISTING LIGHTING PANELBOARDS PP7 AND LP7 AND
AND 15KV CIRCUIT BREAKERS 124 AND 1224.
12. PROVIDE KIRK KEY INTERLOCK BETWEEN 15KV DISCONNECT SWITCH 1223
FOR DETAILS.
11.
ROUTED THROUGH CABLE TUNNEL AND RISER 1.
ROOM AND THE 15KV OUTDOOR CIRCUIT BREAKERS IN SWITCHGEARD
10. NEW 15KV, 4000A BUS CONNECTION BETWEEN 15KV SWITCHGEAR IN CUBICLE
TO TRANSFORMER KZ2A.
9. INSTALL NEW 15KV, 2000A CABLE BUS FROM THE NEW 15KV BREAKER 1124
TRANSFORMER KX5A.
TRAY IN THE CABLE TUNNEL AND THEN IN UNDERGROUND CONDUIT TO
TUNNEL AND FOLLOW THE SAME ROUTING AS EXISTING, PARTIALLY IN CABLE
8. FEEDER CABLE FOR KX5A FROM BREAKER 1024 TO RUN BACK TO THE CABLE
LOCATIONS AND DIMENSIONS IN THE FIELD.
ROUTING OF THE FEEDERS TO THE LOADS. CONTRACTOR TO VERIFY ALL
7. DRAWING SHOWS GENERAL LOCATION OF EQUIPMENT AND PROPOSED
GRID. SEE SECTION 26 05 26.00 26 FOR ADDITIONAL DETAILS.
6. CONNECT NEW STRUCTURES AND EQUIPMENT TO THE EXISTING GROUND
STRUCTURES, FOUNDATIONS AND CONNECTIONS.
5. DESIGN AND INSTALL NEW MEDIUM-VOLTAGE ALUMINUM BUS, SUPPORT
SWITCHYARD TO SS TRANSFORMER A.
SWITCHYARD TO BE REUSED TO CONNECT THE THE 15KV BREAKER IN THE
EXISTING SWITCHGEAR AND PULL IT FROM CUBICLE ROOM TO THE
4. DISCONNECT EXISTING SS TRANSFORMER KW6A FEEDER FROM THE
TO TRANSFORMER KY4A
3. INSTALL NEW 15KV, 4000A CABLE BUS FROM THE NEW 15KV BREAKER 924
15KV SWITCHGEAR BUS 3 TO THE 15KV BREAKER 924 IN THE SWITCHYARD.
2. EXISTING TRANSFORMER KY4A FEEDER SHALL BE REUSED TO CONNECT THE
GENERAL NOTES
RESOURCE DRAWINGS
POWER PLANT 1 GEN. & CONTROL ROOM FLOOPLAN
SWITCHYARD 1 CONDUIT AND GROUNDING - SHEET 1MFP-OPN93E530.1
SWITCHYARD 1 LIGHTING PARTIAL PLAN - SHEET 1MFP-OPN93E211.3
LIGHTING RISER DIAGRAM PLANT 1MFP-OPN83E201.3
FP81_FPP-1.004_G-001
A1
PLAN VIEW TRANSFORMER LOCATIONS
SCALE: 1" = 20'
GSU TRANSFORMER KZ2A
P L
A N
T N
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WORK AREA
FLOW
K1
KEY PLAN
SCALE: NTS
NORTHNORTH
20' 40'0
KW6A
KY4A
KZ2A
E-205
H1
E-205
B-2
E-205
B-15
E-205
B-8
E-205
H-16
S-501
E-6
S-501
E-10
E-205A
A-7
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