Low Noise Pa66 Rail Transportation EC Centrifugal Fans 230V 3570rpm

Low Noise Pa66 Rail Transportation EC Centrifugal Fans 230V 3570rpm

1. How does this affect energy efficiency?

1.1 Doubling the speed of a motor increases its power input by a factor of 8 so it’s very wasteful to run a fan faster than is required. If you can tailor the fan speed to match the demand, the potential for energy saving is huge. Even when compared to on/off operation, EC speed modulation is much more efficient.

1.2 EC fans can also contribute to increasing the overall efficiency of an application. In a cooling system for example, keeping the refrigerant pressure constant rather than having it rise and fall as fans switch on and off has been found to reduce the load on the compressor resulting in even greater energy saving

1.3If two motors are producing the same output but one has a greater power input then you can be sure that the surplus energy is being dissipated as heat. If an application is designed to remove heat then it will have to do extra work just to remove the heat produced by the fan motor itself, so EC fans will improve the efficiency of the whole system

2. Advantages of GreenTech EC technology

2.1 Tremendous energy savings of 30 % on average

2.2 Future-proof and ready for ErP2015

2.3 tntelligent electronics for numerous control functions

2.4 Hardware and software from a single source

2.5 Easy 1:1 replacement from AC technology to GreenTech EC technology

2.6 Can be used worldwide (due to wide voltage input)

2.7 Over 10 years of experience in the area of EC technology

2.8 GreenTech as implemented purchase proposition

3. Six reasons that make us the ideal partner:

3.1 Our systems expertise. As experts in advanced motor technology, electronics and aerodynamics, we provide system solutions from a single source.

3.2 Our spirit of invention. Our 60 engineers and technicians will develop a solution that precisely fits your needs.

3.3 Our lead in technology. Our OFAN EC technology is setting standards worldwide. And our lead is your competitive advantage.

3.4 Proximity to our customers. At 20 sales offices worldwide.

3.5 Our standard of quality. Our quality management is uncompromising, at every step in every process.

3.6 Our sustainable approach. We assume responsibility with our energy-saving products, environmentally-friendly processes, and social commitment

4. The facts about OFAN centrifugal fans at a glance

4.1 AC and EC centrifugal fans with forward-curved blades

4.2 "RadiCal" AC and EC low-pressure centrifugal fans

4.3 "RadiPac" EC medium-pressure centrifugal fans

4.4 Compact design with external rotor motor technology

4.5 Complete series for every application

4.6 100% speed-controlled analogue or serial interface

4.7 GreenTech EC technology for high efficiency

4.8 Quiet operation due to optimised flow control and ingenious commutation of the EC motor

4.9 Perfectly matched components for easy installation: controller, motor, fan

4.10 Extensive range of accessories

5.Flexible open loop control

5.1 Smoothly adjustable speed

5.2 Control via 0–10 V / PWM and MODBUS-RTU

5.3 Error message output

5.4 Interface with SELV

6. Safe operation

6.1 Locked rotor and thermal overload protection

6.2 Disconnection in case of malfunction

7. Universally deployable

7.1 For use with 50- and 60-Hz grids

7.2 Electronics with IP54 protection

7.3 Extended voltage input 1 ~ 200 V – 277 V