GREYHAWK SUBSTATION STEEL & ELECTRICAL
Cabot, Arkansas

Initial Mobilization / Completion Date

3/1/2020 - 7/19/2020

Contract Amount:

$429,170.00

Owner:

Entergy of Arkansas
POC: Justin Hart

Job Number:

20-2503

General Contractor

Koontz Electric Co., Inc.
Project Manager:  Joey Dold
Superintendent: Cory Coggins

Scope of work consisted of the installation of electrical equipment, supports, bus and other components: 
· 161kV single phase bus supports (high)
· 161kV single phase bus supports (low)
· 161kV low switch supports
· 161kV high switch support
· H-frame dead end structures
· 13.8kV 50KVA station service with safety switch
· 161kV, 2000A vertical-break switches with associated operating mechanisms
· 161kV, 2000A vertical-break switch with ground switch and associated LLS-II attachment
· 161kV, 2000A vertical-break switch with ground switch and HWS attachment
· 161kV transformer dead end structure
·  yard lights
·  Porcelain post insulators for bus supports
·  161kV circuit switcher
·  Suspension insulator supports on line dead-end structures and transformer dead end structure
· 15kV breakers
·  Porcelain insulators on 161kV switches
·  4” schedule 40 aluminum bus with connectors and fitting
·  7 #7 alumoweld shield wire with associated connectors and fittings
· Install 954 ACSR damper cable and jumpers with connectors and fittings
· Install 1272 ACSR jumpers with connectors and fittings
· Install 34.5kV equipment, switches, insulators, bus supports and rigid bus
· Install 34.5kV main breaker, tie breaker, and feeder bay structures
· Install all wire/cable as shown on drawing CB1; includes pulling, stripping, megger testing, and installation of Burndy YAEV lugs 
·  Install control house relay panels per drawing LO5, including: 
  ·  stand along AC panel
  ·  standalone DC panel
  ·  RTU panel 
  ·  RTU Peripheral panel
  ·  MOS panel
  ·  transformer differential panel.
· Install 120/240V AC Automatic transfer switch in control house
· Install battery charger and battery DC switch in control house
· Install ADSS for Telecom (estimated 600 ft.)
· Provide and install above ground conduits
· Install distribution backup pad equipment 
· Install Transformer Sump Pump and conduit

This project was completed on time and under budget.