Certification: UL (US & Canada)

Rated Capacity: 1.9 kW continuous output, 2.6 kW peak

Rotor: 12 feet (3.72 m); 50-325 RPM

Interconnection: Utility connected or battery charging

Alternator: Gearless, permanent magnet brushless

Voltage Output: 240 VAC (Optional 208 VAC)

Estimated Energy Production: 400 KWh per month at 12 MPH (5.4 m/s)

Weight: 170 pounds (77 kg)

Tower: Towers from 34-70 feet (10.4-21.3 m) are available; height is

dependent by site

Warranty: Five year limited

Start-up Wind Speed: 3.4 m/s (7.5 mph)

Cut-in Wind Speed: 3.1 m/s (7 mph)

Rated Wind Speed: 13.8 m/s (31 mph)

Rated Power: 10 kW for grid intertie, 7.5 kW for battery-charging

Cut-Out Wind Speed: None

Furling Wind Speed: 15.6 m/s (35 mph)

Max. Design Wind Speed: 54 m/s (120 mph)

Type: 3 Blade Upwind

Rotor Diameter: 6.7 m (22 ft.)

Blade Pitch Control: None, Fixed Pitch

Overspeed Protection: AUTOFURL

Gearbox: None, Direct Drive

Temperature Range: -40 to +60 Deg. C (-40 to +140 Deg. F)

Generator: Permanent Magnet Alternator

Output Form: 3 Phase AC, Variable Frequency (Regulated 48 - 240

VDC after VCS-10 or 240 VAC, 1Ø, 60 Hz or 220 VAC, 1Ø, 50 Hz with

Entegrity Wind Systems is a leading manufacturer of commercial-scale

wind turbines with installations worldwide. The EW50 is a 50-kilowatt

wind turbine generator designed to supplement electric power generation

for large buildings, industry, commercial operations, large farms,

communities, schools, and remote locations.

The EW50 is an ideal investment to combat rising utility rates by enabling

owners to secure their costs for electrical energy against higher future

costs. The EW50 has a 30-year design life and comes with a 5-year

warranty and 5-year O&M agreement

1. SYSTEM

Type 3 ö Grid Connected

Configuration Horizontal Axis

Rotor Diameter 15 m (49.2 ft)

Centerline Hub Ht. 31.1 m (102 ft)

2. PERFORMANCE PARAMETERS

Rated Electrical Power 50 kW @11.3 m/s (25.3 mph)

Wind Speed Ratings

Cut-in 4.0 m/s (8.9 mph)

Shut-down (high wind) 25 m/s (56 mph)

Design Speed 59.5 m/s (133 mph)

Average Annual Output Class 2 115,000kWh

at Sea Level Class 3 149,000kWh

Class 4 177,000kWh

3. ROTOR

Type of Hub Fixed Pitch

Rotor Diameter 15 m (49.2 ft)

Swept Area 177 m2 (1902 ft2)

Number of Blades 3

Rotor Solidity 0.077

Rotor Speed @ 50kW 65 rpm

Nameplate Capacity

Location Relative to Tower Downwind

Cone Angle 6o

Tilt Angle 0o

Rotor Tip Speed 51 m/s (114 mph) @ 60 Hz

Design Tip Speed Ratio 6.1

4. BLADE

Length 7.2 m (23.7 ft)

Material Epoxy /glass fiber

Blade Weight 150 kg (330 lbs) approximate

5. GENERATOR

Type 3 phase/4 pole asynchronous

Frequency 60 Hz

Voltage 3 phase @ 50/60 Hz, 415-600

kW @ Rated Wind Speed 50 kW

kW @ Peak Continuous 66 kW

Insulation Class F

Enclosure Totally Enclosed Air Over

6. TRANSMISSION

Type Planetary

Housing Ductile Iron

Ratio (rotor to generator sp) 1 to 28.25 (60 Hz)

Rating, output horse power 88

Lubrication Synthetic gear oil/non-toxic

GENERAL CONFIGURATION DESCRIPTION

MODEL

DESIGN CLASS  DESIGN LIFE  HUB HEIGHT   TOWER TYPE  ORIENTATION

ROTOR DIAMETER      POWER REGULATION

RATED ELECTRICAL POWER  RATEDWIND SPEED

RATED ROTATION SPEED 

CUT-INWIND SPEED

CUT-OUTWIND SPEED

SURVIVALWIND SPEED

ROTOR

NACELLE

TOWER

GEARBOX TYPE

GENERATOR SYSTEM

SERVICE BRAKE TYPE

NORMAL SHUTDOWN BRAKE

EMERGENCY SHUTDOWN BRAKE

CONTROLS

CONTROLLER TYPE

CONVERTER TYPE

MONITORING SYSTEM

OUTPUT CONNECTION TO TRANSFORMER

POWER FACTOR

APPARENT NOISE LEVEL

TEMPERATURE RANGE:OPERATIONALTOFULL POWER

TEMPERATURE RANGE: OPERATIONAL

TEMPERATURE RANGE: STORAGE

SALTWATER

GENERATOR, NACELLE, HUB IP CLASS

LIGHTNING PROTECTION

ICING

Northwind 100

IEC la / IEC lla

20 years

37 m (121 ft)

Tubular steel monopole with internal fall restraint system

Upwind

21 m (69 ft)

Variable Speed Stall Control

100 kW, 3 Phase, 480 VAC, 50/60 Hz

14 m/s (31mph)

59 rpm

3 m/s (7 mph)

25 m/s (56 mph)

60 m/s (134 mph)

1,350 kg (2,976 lbs)

5,200 kg (11,464 lbs)

13,000 kg (28,660 lbs)

No Gearbox

Direct drive, permanent magnet,

passively cooled

Spring Applied Caliper

Dynamic Brake

Spring Applied Calipers &

Dynamic Brake

Electromechanically driven with wind

direction/speed sensor and

automatic cable unwind

DSP Microprocessor-based CPU

Pulse-width modulated IGBT frequency

converter, designed to UL-1741

SmartView Remote Monitoring System,

ModBus TCP-IP over ethernet

4-Wire GroundedWye,

transformer by others

Unity or 0.9 lagging to 0.9 leading selectable

Less than 50dBA at 40m (131 ft, approximate

ground level to turbine)

-25°C to 40°C

(-13°F to 104°F)

-25°C to 50°C (-13°F to 122°F)

(with cold weather option, down to -40°C)

-40°C to 55°C (-40°F to 131°F)

Coastal siting possible, no direct spray

IP55, IP54, IP54

Receptors installed in blades and surge

protection in electrical system