Invest in availability and make your wind turbine a dependable source of power – now and in the future.
DEHNdetect reliably detects lightning events preventing expensive maintenance work and long downtimes. Damage resulting from a lightning strike does not necessarily lead to the immediate failure of the turbine and, as a result, lightning events often remain undetected. Especially in the case of upward flashes the initial long stroke current flowing is only a few 100A and can be the main cause of melting, e.g., on the receptors of rotor blades. The resulting subsequent damage may be severe. The revised standard IEC 61400-24 (July 2019) Wind turbines Part 24: Lightning protection recommends the installation of measuring systems which can also measure long stroke currents in order to determine the intensity of lightning strikes.
DEHNdetect not only recognizes peak currents but also these dangerous long stroke currents and can, moreover, be equipped with optional rotor blade detection. The system can be integrated in the IT infrastructure of the wind turbine via existing interfaces. The data can then simply be read out and managed using the available SCADA systems. If direct integration is not possible, the data can be transmitted to a cloud 1). The current curve can be evaluated in detail in this web application. This makes it possible to monitor several turbines or even entire wind parks.
DEHNdetect determines the following parameters:
Impulse current [kA]
Specific energy [MJ/Ω]
Load [C]
Long stroke current [A]
Rise time [kA/μs]
Your advantages:
Prevention of subsequent damage
Optimization of maintenance work and servicing
Reduction of downtime
DEHNdetect components:
DEHNdetect DL:
Data logger with different interfaces for
integration in IT systems
DEHNdetect Integrator:
Processing of the measuring signals and
transmission to the data logger.
DEHNdetect ICC IMP:
Measuring coil for measuring long stroke and
impulse currents. Measuring range 60 A to 250 kA.
DEHNdetect BDU:
Detector for the wireless detection of lightning
current in the rotor blade.