Hitachi - RCU Series Regenerative Converter

The energy is recycled through the AC line, resulting in increased energy efficiency and reduced energy consumption. In many applications, the amount of energy that can be reclaimed is quite significant, thus providing a measurable return on investment and short pay-back cycle relative to the cost of the RCU.

Furthermore, the waste heat generated by conventional DB often creates the need for additional cooling and air-conditioning, which can be costly. Thus, the elimination of DB waste heat is a secondary benefit of the RCU Series. In this way, incorporating an RCU in the system allows for a smaller cooling system (HVAC), offsetting the up-front cost of the regenerative unit, and additionally, reducing the demands placed on the cooling system.

The RCU is simple to install and operate, with only five connections necessary for basic operation. It incorporates LC-filtering to mitigate harmonics and an LED display for monitoring of operation and faults. The RCU is available in several sizes, and units can be parallel-connected for higher power handling.

Features:

• Affordable green alternative to traditional dynamic braking systems
• Reclaim normally wasted energy and converts it into 3-phase AC power
• Easy Installation and Operation – 5 wire connection
• Low Harmonics – integrated LC filtering
• Over 95% efficiency
• Units can be parallel-connected for higher capacity
• Auto restart after power loss
• Ideal for elevators, machine tools, hoists, punch presses, fans and renewable energy systems (solar/photovoltaic, wind turbine, fuel cell)
• Electric power savings - reduces heat load for air conditioning
• Low harmonics- integrated LC filtering
• Units can be parallel-connected for higher capacity
• Auto restart after power loss
• Fast payback!
• This a green solution!
• For more than 50% brake cycle applications this is a better solution than dynamic braking!