Karoun 3 hydro power plant , Iran Water & Power Resources

Client

Iran Water & Power Resources Development Co.

Main Contractor: Farab
Location: Khuzestan, Iran
Scheme: PC
Scope: Electromechanical & hydromechanical equipment
Capacity: 2,000 MW (8 Units of 250 MW)
Type of power house: Underground
Average annual power generation: 4137 GWh

Main equipment:

• Turbine: Vertical Francis, 187.5 rpm, 700 tons each
• Generator: Synchronous type, 15.75 KV
• Butterfly valve: 5.2 m inner outlet dimameter, 285 tons each unit
• Governor: Digital type with digital backup governors, 75 bar
• Busduct: 3 km generator busduct and 1 km SF6 400 KV
• Transformer: Single phase step up transformers
• Crane: Two power house main cranes, 300 tons each

Hydro Mechanical Equipment (12000 tons):

• Service spillway: 2 radial gates and 6 stoplogs (550 tons), one gantry crane and hoist
• servomotor
• Orifice spillway: 2 radial and 2 sliding gates (1145 tons) with hoist servomotors and steel lining
• (3200 tons)
• Flow compensation outlet: 3 hollow cone valves (70 tons), 2 sliding and 2 bulkhead gate (100
• tons), one gantry crane for bulkhead gate and one under-hung crane
• Deck: 24 stoplogs (600 tons), 48 trash racks (460 tons) and one gantry crane
• Gate gallery: One bulkhead and 4 sliding gates with hoist servomotors (300 tons) and one overhead crane
• Tailrace: 12 stoplogs (360 tons) and one gantry crane
• Steel lining