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

 

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