Nevada Micro Wind Test Site - December 2011 
Some sort of event took out the processor on the Modbus Shunt Monitor. That is a hole blown in the plastic packaging.
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Some sort of event took out the processor on the Modbus Shunt Monitor. That is a hole blown in the plastic packaging.
Viewed: 2075 times.

New dump load. The six 0.75 ohm resistors on the right are the 24 volt 1.8 kW dump load. The 0.9 ohm resistors on the left are the clipper stop resistors.
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New dump load. The six 0.75 ohm resistors on the right are the 24 volt 1.8 kW dump load. The 0.9 ohm resistors on the left are the clipper stop resistors.
Viewed: 1795 times.

Resistor bank as it is being mounted to back of main enclosure.
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Resistor bank as it is being mounted to back of main enclosure.
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Pieter Huebner of Bergey maintains a 5kW Bergey Excel. A 10kW Bergey Excel is in the foreground.
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Pieter Huebner of Bergey maintains a 5kW Bergey Excel. A 10kW Bergey Excel is in the foreground.
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A view from just below the peak of the mountain.
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A view from just below the peak of the mountain.
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View from just below the peak of the mountain.
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View from just below the peak of the mountain.
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Dump load all installed. The fan sucks cold air through the eight vents on the side.
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Dump load all installed. The fan sucks cold air through the eight vents on the side.
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December 9th, 2011.
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December 9th, 2011.
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More wind turbines and weather sensors.
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More wind turbines and weather sensors.
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More messy wiring. Gel buffered outdoor CAT5e cable becomes brittle below freezing. Was difficult to deal with.
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More messy wiring. Gel buffered outdoor CAT5e cable becomes brittle below freezing. Was difficult to deal with.
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Dawn on December 10th, 2011.
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Dawn on December 10th, 2011.
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Riding up the mountain on December 10th, 2011.
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Riding up the mountain on December 10th, 2011.
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Dawn on December 10th, 2011.
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Dawn on December 10th, 2011.
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Dawn on December 10th, 2011.
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Dawn on December 10th, 2011.
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Newly added AS Richards wind vane.
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Newly added AS Richards wind vane.
Viewed: 1818 times.

Inside of the Midnite Classic. Lots of IO on this thing. Ethernet, USB, three RS-232 ports.
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Inside of the Midnite Classic. Lots of IO on this thing. Ethernet, USB, three RS-232 ports.
Viewed: 1772 times.

Classic taking 114 volts in from the turbine and putting out 30 volts to the battery. Initial guess at a power curve ... will be tweaked over Modbus later.
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Classic taking 114 volts in from the turbine and putting out 30 volts to the battery. Initial guess at a power curve ... will be tweaked over Modbus later.
Viewed: 1733 times.

Standard day on the mountain. 30 MPH winds and 25F.
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Standard day on the mountain. 30 MPH winds and 25F.
Viewed: 1717 times.

Thermal label printers don't work very well when it is cold outside.
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Thermal label printers don't work very well when it is cold outside.
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24 volt turbine and AS Richards wind vane.
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24 volt turbine and AS Richards wind vane.
Viewed: 1695 times.

Experimental enclosure. The 24 volt turbine output can be switched to this enclosure. There is a Morningstar Tri-Star MPPT running wind tracking code. It charges the 12 volt battery to the right. The Tri-Star on the left acts as a dump load.
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Experimental enclosure. The 24 volt turbine output can be switched to this enclosure. There is a Morningstar Tri-Star MPPT running wind tracking code. It charges the 12 volt battery to the right. The Tri-Star on the left acts as a dump load.
Viewed: 1713 times.

Weather sensors and 24 volt turbine.
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Weather sensors and 24 volt turbine.
Viewed: 1743 times.

Cold.
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Cold.
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Wires, wires everywhere.
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Wires, wires everywhere.
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Sensor and power sources wiring inputs.
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Sensor and power sources wiring inputs.
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Bank of Rectifier Stop Switches.
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Bank of Rectifier Stop Switches.
Viewed: 1772 times.

Midnite Clipper wind turbine speed control. Normally housed in an attractive metal case. There wasn't room for that in an enclosure, so it got shrunk and the resistors got moved outside.
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Midnite Clipper wind turbine speed control. Normally housed in an attractive metal case. There wasn't room for that in an enclosure, so it got shrunk and the resistors got moved outside.
Viewed: 1815 times.

Another view to the south.
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Another view to the south.
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Interior view, looking south.
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Interior view, looking south.
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It was too cold outside to do proper wire routing. So a lot of wires just got dropped in place. Unfortunately.
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It was too cold outside to do proper wire routing. So a lot of wires just got dropped in place. Unfortunately.
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A view to the North.
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A view to the North.
Viewed: 1733 times.

More messy wiring.
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More messy wiring.
Viewed: 1826 times.

Stuff. Lots of stuff. Getting ready to close the box for this trip and head down the mountain.
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Stuff. Lots of stuff. Getting ready to close the box for this trip and head down the mountain.
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View to the north.
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View to the north.
Viewed: 1731 times.

The revised serial setup. Previously there was a single Moxa UPort 1450 that provided all of the serial ports. Unfortunately, it sometimes crashes. There is now an APRS World "Arlo Watchdog" that will automatically switch the two primary RS-485 busses to a Moxa MGate Modbus / TCP/IP gateway in the event of a bus problem. Further to the right is an 8 port fast Ethernet switch with a four port APRS World "Passive POE Monitor". The Passive POE Monitor allows individual ports power to be turned on or off and for voltage and current to be measured. It also provides over current protection.
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The revised serial setup. Previously there was a single Moxa UPort 1450 that provided all of the serial ports. Unfortunately, it sometimes crashes. There is now an APRS World "Arlo Watchdog" that will automatically switch the two primary RS-485 busses to a Moxa MGate Modbus / TCP/IP gateway in the event of a bus problem. Further to the right is an 8 port fast Ethernet switch with a four port APRS World "Passive POE Monitor". The Passive POE Monitor allows individual ports power to be turned on or off and for voltage and current to be measured. It also provides over current protection.
Viewed: 1790 times.

Messily installed USB hub (external powered) and FTDI 4-port RS-232 card. Circuit breaker is over current protection for dump load fan.
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Messily installed USB hub (external powered) and FTDI 4-port RS-232 card. Circuit breaker is over current protection for dump load fan.
Viewed: 1932 times.

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