Code: I.H4.V10.3003
Installation and Maintenance Manual
Version: 07
43 / 66
Ennera Energy and Mobility, S.L.
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9.
TROUBLESHOOTING
The following table shows the most common problems that can occur in small turbines, as well
as their causes and how to solve them.
Problem
Possible cause
Solution
The Windera remains
stopped or rotating very
slowly although there is
wind above 6 m/s.
Electrical protection is
activated
Release electrical protection
Active alarms in
Windera
Possible external abnormal conditions
alarms:
-
Grid condition alarms
-
High wind alarms
-
Emergency or Stop button
Other alarms: Contact Ennera
The mechanical brake
is blocked
Unblock the mechanical brake: rotate
the blades unclockwise manually to
release the mechanical brake.
The small wind turbine
makes occasional
mechanical noises.
Friction between
components
Check the rotating parts.
The small wind turbine
makes an unusual noise,
such as whistling or
buzzing.
Rotor blades damaged.
Inspection the blades for anomalies
detection.
The rotor is off balance,
causing the turbine to
move slightly back and
forth.
Blades unbalanced.
Inspection the blades for anomalies
detection.
10.
FREQUENTLY ASKED QUESTIONS
How long does a small wind turbine last?
The Windera small wind turbine is designed to last for more than 20 years. This is due to its
robust design, the quality of its materials and anti-corrosion treatments and to a totally sealed
design that prevents humidity and particles from entering the system.
How does a small wind turbine work?
The blades use the force of the wind to generate a mechanical torque in the generator, which in
turn generates three-phase electricity depending on the rotation speed and the force exerted
on its shaft by the blades. The electricity generated passes to the converter and is transformed
into single-phase electricity so that it can be injected into the electrical grid in low-voltage
distribution conditions.
Is it necessary to install protection between the small turbine and the converter?
Never, the converter performs all the necessary protection functions. If a protective measure is
installed between the turbine and the converter and it causes the electrical connection to cut
off, the turbine will continue to operate in no-load mode, causing irreparable damage to the
small wind turbine.