Coventry High School Equipment and Testing

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Turbine and Tower Details: Endurance S343 5kW turbine on a 105 ft. guyed tube tower

Location: 78 Ripley Road, Coventry, CT

Equipment and Testing

Testing will be commencing soon on the Endurance S343 turbine. This testing will include collecting data to verify turbine power performance, acoustic emissions, power quality, and durability; referencing, where applicable, portions of the AWEA draft small wind test standard and IEC 61400. Monitoring is scheduled to occur for a period of 12 months, from turbine installation. Progress reports and final report, when available, will be posted here.

Characteristics of Test Turbine

General

Manufacturer and Model

Endurance S-343

Rotational Axis

Horizontal

Orientation

Upwind

Rotor Diameter

6.37m

Performance

Cut-In Wind Speed 3.0 m/s

Cut-Out Wind Speed 24 m/s

Rated Power (Rated Wind Speed) 5.3 kW at 11 m/s

Operational Rotor Speed 166 RPM

Overspeed Regulation Method Stall control (constant speed) and redundant brake calipers

Electrical Characteristics

Turbine Output Voltage Range 120(low wind)/240(high wind)

Turbine Output Frequency Range 60 Hz

Inverter Output Voltage N/A

Inverter Output Max ITHD/VTHD N/A

Tower

Type
Tilt-up Guyed Monopole

Hub Height 105 ft (32 m)

Manufacturer Endurance

Instrumentation and Measured Parameters

Hub Height Wind Speed (Correlation period only)
Calibrated NRG #40C anemometer

Primary anemometer (80 ft level, 300° True) Thies First Class 4.3351.0 anemometer

Backup anemometer (80 ft level, 210° True) Calibrated NRG #40C anemometer

Secondary anemometer (55 ft level, 210° True) Calibrated NRG #40C anemometer

Wind direction (80 ft level, 270° True) NRG #200P potentiometer wind vane

Barometric pressure (80 ft level) NRG #BP20 pressure transducer

Ambient air temperature (10 ft level) NRG #110S shielded temperature sensor

System Output Power/Voltage/Power Quality Ohio Semitronics A230 Power Meter

Data Logger Campbell Scientific CR800

Manufacturer and Model	Endurance S-343
Rotational Axis	Horizontal
Orientation	Upwind
Rotor Diameter	6.37m

Cut-In Wind Speed	3.0 m/s
Cut-Out Wind Speed	24 m/s
Rated Power (Rated Wind Speed)	5.3 kW at 11 m/s
Operational Rotor Speed	166 RPM
Overspeed Regulation Method	Stall control (constant speed) and redundant brake calipers

Turbine Output Voltage Range	120(low wind)/240(high wind)
Turbine Output Frequency Range	60 Hz
Inverter Output Voltage	N/A
Inverter Output Max ITHD/VTHD	N/A

Type	Tilt-up Guyed Monopole
Hub Height	105 ft (32 m)
Manufacturer	Endurance

Hub Height Wind Speed (Correlation period only)	Calibrated NRG #40C anemometer
Primary anemometer (80 ft level, 300° True)	Thies First Class 4.3351.0 anemometer
Backup anemometer (80 ft level, 210° True)	Calibrated NRG #40C anemometer
Secondary anemometer (55 ft level, 210° True)	Calibrated NRG #40C anemometer
Wind direction (80 ft level, 270° True)	NRG #200P potentiometer wind vane
Barometric pressure (80 ft level)	NRG #BP20 pressure transducer
Ambient air temperature (10 ft level)	NRG #110S shielded temperature sensor
System Output Power/Voltage/Power Quality	Ohio Semitronics A230 Power Meter
Data Logger	Campbell Scientific CR800