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Perkins 2806A-E18TAG2 Diesel Generator – 725 kVA

Siemens SIPROTEC 5 7SD86 Line Differential Protection Relay

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Technical Specifications

Engine Brand: Perkins

Engine Model: 2806A-E18TAG2

Country of Origin: UK

Prime Power: 565 kW / 758 hp

Standby Power: 609 kW / 815 hp

Displacement: 18.1 L

No. of Cylinders: 6 (in-line)

Cooling System: Water-cooled

Governor Type: Electronic

Fuel Consumption (50%): 66 L/h

Fuel Consumption (75%): 97 L/h

Fuel Consumption (100%): 143 L/h

Speed: 1500 rpm

Bore × Stroke: 145 × 183 mm

Compression Ratio: 14.5:1

Injection: Direct

Electrical System: 24 V DC

Lub-Oil Capacity: 62 L

Fuel Tank Capacity: 1100 L

Coolant Capacity: 61 L

Dry Weight: 2050 kg

Technical Specifications – Alternator:

Brand: Stamford

Model: HCI544F

Country of Origin: UK

Prime Power: 620 kVA

Frequency: 50 Hz

Insulation: Class H

Overload Capacity: 110 %

Power Factor: 0.8

Poles: 4

Bearing: 1

Output Voltage: 400/230 V

Speed: 2250 rpm

Main function: Differential protection

Interoperability: SIPROTEC 5 and SIPROTEC 4 line protection devices

Tripping: 3-pole, minimum tripping time 9 ms

Inputs/Outputs: 12 predefined standard variants with

4/4 or 8/8 current/voltage transformers

5–31 binary inputs

8–46 binary outputs

Hardware flexibility: Adjustable I/O structure within the SIPROTEC 5 modular system

Housing width: 1/3 × 19 inches to 2/1 × 19 inches

Application:

Line protection for all voltage levels with 3-pole tripping

Phase-selective protection of overhead lines and cables (single/multi-ended)

Transformers and compensating coils in the protection zone

Ground fault detection in isolated or arc-suppression-coil-ground systems

Communication over fiber, two-wire, or network media

Full interoperability between SIPROTEC 4 and SIPROTEC 5 devices

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