Safe energy saving

Safe energy saving
NFO Drives AB | Svängsta | Sweden
Who We are
NFO Drives AB is a Swedish cleantech-company which develops and
manufactures products with unique technology for energy efficiency of
electrical motors for machines, fans, pumps etc.
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Dates
1985-96
The inventor and M.Sc. Ragnar Jönsson develops new technologies for motor control
1996
NFO Drives AB is formed. Operations are started in Svängsta, Sweden
2008
Co-operation with DeLaval starts. DeLaval produces equipment for milk production
The organization is strengthened to accelerate new product development and increase sales
2013
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Facts and Figures
To date, 20 000 drives have been installed
The NFO patent (Natural Field Orientation) gives sensor less vector control with full torque from standstill NFO Sinus is the only frequency
inverter on the market that generates a true sinus voltage which substantially reduces costs for our customers
NFO Drives AB | Svängsta | Sweden
www.nfodrives.se
Cost Reduction
By controlling electrical
motors with frequency
inverters, you can save
up to 70% energy
- sometimes more
5 years continuous operation of 15 kW fan or pump
Average savings potential for fixed speed is 35%
NFO Drives AB | Svängsta | Sweden
www.nfodrives.se
Pure sinus makes a big difference for you
*PWM = Pulse width modulation
NFO Drives AB | Svängsta | Sweden
www.nfodrives.se
PWM*
NFO Drives AB | Svängsta | Sweden
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www.nfodrives.se
NFO SINUS®
NFO Drives AB | Svängsta | Sweden
Back
www.nfodrives.se
Conventional PWM technique
Shorter lifetime
of motor due
to bearing
currents
PWM generates
interferences
that can cause
substantial
costs
NFO Drives AB | Svängsta | Sweden
Sinus technique
Healthy motor
5 year
guarantee on
ball bearings
NFO Sinus® is
interference free,
which means
great benefits for
most customers.
www.nfodrives.se
Conventional PWM technique
Expensive and
complicated
electrical installation
Sinus technique
Cost effective and simple
electrical installation
•
•
•
•
Installed with unshielded cable
Unshielded safety breaker
Plug and play
Ground fault interrupter (RCD)
can be used
Fixed positions
Free position
The drive is normally placed
close to the motor to avoid
interference problems
• Practically unlimited cable lenghts
• Free placement
• Control room
• Switchboard
NFO Drives AB | Svängsta | Sweden
www.nfodrives.se
Ventilation and pump control
Oslo National Hospital have exchanged
approx. 600 conventional PWM drives to
the interference-free NFO Sinus®.
”After the switch, we have been spared
all the problems with interference and
bearing damages.”
NFO Drives AB | Svängsta | Sweden
www.nfodrives.se
Kockums
(ThyssenKrupp Marine Systems)
Ventilation control in stealth vessels
and submarines
“NFO Sinus fulfils all our requirements
for interference-free motor control at
a very moderate price”
NFO Drives AB | Svängsta | Sweden
www.nfodrives.se
Karlskrona County
Well pump control
Energy savings more than 50%
”NFO Sinus® could be installed
centrally at a distance of several
hundred meters from the wells.
As the existing unshielded cables
could be used, the pay off time
was very short – approx. one year!”
NFO Drives AB | Svängsta | Sweden
www.nfodrives.se
Dancing Water System
in Ankara
• Long motor cables
• RCDs required
• Approximately 200 NFO Sinus® installed
Designed and installed by
Laserfabrik Showlaser, Germany
NFO Drives AB | Svängsta | Sweden
www.nfodrives.se
Why NFO Sinus® was chosen:
• No interference on the farm equipment
• Reliable automatic identification of the animals
• No earth leakage currents which affect the animals
• No ball bearing damages
RESULT:
• High operation reliability
• High product quality
NFO Drives AB | Svängsta | Sweden
www.nfodrives.se
IP54
IP20
0.37-5.5 kW
0.37-15 kW
NFO Drives AB | Svängsta | Sweden
www.nfodrives.se

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