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SMA
Windy Boy inverters

Windy Boys are single phase inverters that convert DC current into AC current and feed the energy generated by a wind turbine system into the utility grid. Windy Boy inverters have a special operating mode for wind generators that allows performance adjustment to the turbine's characteristic curves for maximum yield from wind turbines from many different manufacturers.

Most small wind turbine systems use a permanent magnet generator. For converting the variable frequency AC generator voltage into DC current, a rectifier system like the Windy Boy Protection Box is needed. Since most rectifier/controllers supplied by the wind turbine manufacturers do not have adequate over-voltage protection, they are not recommended for use with Windy Boy inverters.

The Windy Boy also has a soft-start parameter "P-Wind-Ramp." This parameter protects the mechanical components of your wind turbine system and thus contributes to a longer system life. Other adjustments are possible to maximize performance of the Windy Boy with a particular wind turbine system, by adjusting the regulation speed and also by setting the switch-off and switch-on times.

The Windy Boy 3000US can be used in 240 VAC single-phase systems, and 208 and 240 VAC three-phase systems (WYE or Delta). The Windy Boy 5000US, 6000US, and 7000US can be used in 240 VAC single-phase systems and 208 and 240 VAC three-phase systems (WYE or Delta) and in 277/480 VAC WYE three-phase systems. The Windy Boy 8000US can by used in 240 VAC single-phase systems, in 240 VAC three-phase systems (WYE and Delta) and in 277/480 VAC WYE three-phase systems.

Because wind turbines can produce more than their rated power under high-wind conditions, it is recommended that the Windy Boy inverter be oversized by at least 30%. For example, for a wind turbine with a maximum rated power of 5kW, it is recommended that a 7kW Windy Boy inverter be used with one Protection Box 600.

For larger wind turbines, multiple Windy Boy inverters with multiple Protection Boxes can be used. Windy Boys can be paralleled in 240 VAC single-phase systems, or used in sets of three to balance the power on all three phases of a three-phase system. For example, with a 30kW wind turbine operating in a 208 VAC three-phase system, 6 Windy Boy 7000US inverters and 6 Protection Boxes can be used (2 inverters in parallel between each pair of phases)

All Windy Boy inverters are Listed o UL 1741 and UL 1998 for the US and Canada. They also comply with IEEE 1547, FCC Part 15 (Class A and B). 10-Year warranty standard, and 5 or 10-Year warranty which is extendable.

SMA Windy Boy Protection Box

The WBP-Box 600 Protection Box contains an AC-to-DC three-phase rectifier and over-voltage protection. The Protection Box's rectifier converts the variable AC voltage of a permanent-magnet wind turbine into DC voltage, and uses this to power the Windy Boy. The WBP-Box limits excessive voltage and power from the generator and redirects it to a load resistor without limiting the power of the wind turbine. This reliably protects the inverter from high input voltages and ensures trouble-free operation. It is delivered as a turnkey unit and can be used with nearly all types of generators from various manufacturers and with different power classes.

The Protection Box has a nominal power of 7 kW, a maximum input voltage range of 500 VAC and a maximum phase current of 11.5 A. The integrated over-voltage protection limits the DC voltage to 600 VDC. Connect one wind turbine with maximum of 7 kW of output per WBP Box 600 (one WBP Box 600 can be used with two WB3000 inverters, or one each of the 5, 6, and 7 kW inverters). You can use multiple Protection Boxes if the wind turbine power is greater than 6 kW.



SMA Windy Boy Inverters

SMA Model

Max-
Power
rating

Max
recommended
turbine rating

AC output
volts

Max AC
output
current

DC input
voltage range
(MPPT)

Max DC
voltage

Max DC
input
current

CEC rated
efficiency

Dimensions
H x W x D

Weight
(lbs)

Item
Code

WB3000
-US

3000 W

2300 W

208 VAC

15 A

180-500 VDC

500 VDC

17 A

95.0%

14" x 18" x 9"

88

030-
03080

240 VAC

200-500 VDC

95.5%

WB5000
-US

5000 W

3800 W

208 VAC

27.9 A

250-600 VDC

600 VDC

21 A

95.5%

24" x 18" x 9.5"

143

030-
03171

240 VAC

24.1 A

277 VAC

20.9 A

WB6000
-US

6000 W

4600 W

208 VAC

33.3 A

250-600 VDC

600 VDC

25 A

95.5%

24" x 18" x 9.5"

143

030-
03172

240 VAC

28.9 A

95.5%

277 VAC

25.0 A

95.0%

WB7000
-US

7000 W

5400 W

208 VAC

34.0 A

250-600 VDC

600 VDC

30 A

95.5%

24" x 18" x 9.5"

143

030-
03173

240 VAC

34.0 A

96.0%

277 VAC

32.0 A

96.0%

WB8000
-US

8000 W

6200 W

240 VAC

32.0 A

300-600 VDC

600 VDC

30 A

96.0%

24" x 18" x 9.5"

143

030-
03174

277 VAC

32.0 A


SMA Windy Boy Protection Box

SMA Model

Description

Item Code

WBP-Box 600

Windy Boy Protection Box 600 - includes load resistor, 7 kW - 600 VDC

030-03150

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