SCHURTER’s AS168X thermal magnetic, high-performance miniature circuit breaker is UL 1077 approved. The units are available in either ac or dc with the same frame size for industrial applications, including industrial converters and inverters. The family has three levels of short-circuit protection, categorized by F/DF Trip for resistive loads, G/DG Trip for slightly inductive loads…
Continental Control Systems releases Fast Power firmware for Modbus energy meter
Due to new requirements from utilities, Continental Control Systems has released a new firmware version for the Modbus Revenue energy meter, providing for a Fast Power register reading that updates every 200 milliseconds. Option FP (Fast Power) supports feed-in limit requirements for those utilities with limits on the AC power that may be fed into…
1 phase 25 kW bidirectional grid-tie wind inverter makes net metering possible for farm & industrial
Small and community-wind farms (25 to 100 kW) are fast growing markets in North America for wind-energy applications. But this great opportunity has drawbacks. For instance, farms are mostly supplied with split single phase power. Though single phase inverters are available for small wind turbines, such products are not practically usable at such power levels.…
What are the electrical & electronic components in a wind turbine?
Motors and drives: nacelles on utility scale turbines are filled with motors and drives. The latter devices are part of the turbine controls that tell motors what to do. Generally, electric motors pitch the blades on turbines with less than 1.5 MW outputs and point nacelles in appropriate directions. Utility-scale turbines can have up to…
3-phase string inverter earns CSA approval
A manufacturer of renewable energy, and energy-efficient power conversion and power management equipment has received CSA-UL1741 approval for its Aurora 3-phase string inverter. The Aurora Trio, 10 & 12 kW string inverters have several differentiating features including two independent MPPT inputs, a wide input-voltage range, convection cooling, disconnect switches, and a NEMA-4X enclosure. “This product…
Inverter manufacturer starts production in Phoenix
A manufacturer of power inverters for the renewable energy industry, California-based Power-One, will open its first North American manufacturing facility in Phoenix. This marks the sixth such company to move to Greater Phoenix since January, drawn by the state’s landmark Renewable Energy Tax Incentive Program. Production at the Phoenix facility starts October 2010 and will…
7.2 kW inverter works at 99.4% efficiency
The power conversion efficiency rating of the Aurora Wind Interface model PVI-7200 W is 99.4%. It accepts three-phase input from a permanent-magnet generator (PMG) and outputs a max 7,200 W. The inverter has a fused wind input feature and an automatic brake function for the maximum 530 Vdc and an optional external brake resistor is…
8 kW wind inverter comes with double standard warranty
An 8,000W inverter for wind turbines expands the Windy Boy lineup, which now consists of five models ranging from 3,000 to 8,000 W. The unit’s factory warranty, from SMA America, Rocklin, Calif. (sma-america.com) has also been increased to 10 years, with the ability to extend to 15 or 20 years. The Windy Boy 8000US includes…
Liquid cooled inverters ready for hot jobs
A liquid-cooled inverter provides optimal thermal performance in a compact design for applications unsuitable for air cooling. Manufacturer Magnetek Inc. says the liquid cooled inverters are ideal for sealed-structure applications such as near shore wind turbines or wind turbines installed in corrosive environments, as well as locations that require sustained operation at elevated ambient temperatures.…