Page 121 - Surge-Protection-E_0.pdf

Measuring Devices and Accessories

DEHNdetect
Lightning current measuring system
• Prevention of subsequent damage
• Reduction of maintenance / repair costs
• Reduction of downtime
A B

C

DEHNdetect consists of:
A Up to 3 blade detection units
B Measuring coil ICC IMP
C Data logger and integrator

Also suitable for retrofitting! alternative to integrating the data in an existing SCADA system via
The lightning current measuring system DEHNdetect is a future-oriented Modbus TCP, DEHN offers a user-friendly, cloud-based platform for clear-
system for measuring long stroke and impulse currents caused by light- ly displaying the measurement results and managing all lightning current
ning strikes to very high structures such as wind turbines. In particular, the measurement systems. The measurement results such as impulse current,
impact of lightning-induced long stroke currents on the structure at the long stroke current, charge, specific energy, rise time and time stamp are
point of strike is often underestimated. During the discharge process displayed in this web-based application. In addition, the entire current
which takes up to a second, an extremely high charge Q may occur, sub- curve of a lightning event can be displayed and evaluated or, e.g., the
jecting the mechanical parts of the wind turbine, e.g. the rotor blades, to trigger threshold of the coils can be changed by way of remote parame-
heavy loads. The measuring coil DDT ICC IMP_xx precisely measures the terisation. Adding further users, e.g. service personnel, is quick and easy
long stroke and impulse currents. DEHN provides the measuring coil in via the user administration. To ensure convenient monitoring of the devic-
different lengths to ensure flexible positioning in different types of wind es, an e-mail can be automatically sent to an authorised group of people
turbines. To facilitate targeted maintenance in the affected rotor blade in case of a lightning event. Due to the modular design of DEHNdetect,
after a lightning strike, DEHN recommends using the blade detection unit the system can be configured to meet specific requirements and individ-
DDT BDU which sends a signal to the DDT DL data logger via a radio link ually assembled. The various extension options can be put together quick-
when the rotor blade is struck. There are two different lightning current ly and smoothly via a WEB configurator. DEHNdetect makes lightning-fast
detection thresholds, 100 A and 5 kA. The blade detection unit can be response possible so that lengthy downtime and repair costs, as well as
mounted in the rotor blade using the enclosed holder. The data logger DDT subsequent damage, can be avoided. This increases the economic efficien-
DL is the core of the system. It processes the measured and detected cy of wind turbines allowing them to reliably generate power - today and
signals and makes them available via LTE, Ethernet or Modbus TCP. As an tomorrow.

Data logger DDT DL 915 000 DDT DL
Type DDT ... DL C 915 000 4013364421271 04 01 07 01 860 g
Part No. 915 000 + 0,00 €
Voltage supply 24 V DC / ± 10 %
Measuring range (impulse current) 500 A - 250 kA
Measuring range (long stroke current) 60 A - 2.5 kA
Digital outputs 2 (24 V / 10 mA)
Communication via LTE, Ethernet, Modbus TCP
Communication with blade detection unit via ZigBee 2.4 GHz
For mounting on 35 mm DIN rail according to EN 60715

Data logger DDT DL TCP 915 001 DDT DL TCP
Type DDT ... DL TCP C
915 001 4013364421301 04 01 07 01 845 g
0,00 €
Part No. 915 001 +
Voltage supply 24 V DC / ± 10 %
Measuring range (impulse current) 500 A - 250 kA
Measuring range (long stroke current) 60 A - 2.5 kA
Digital outputs 2 (24 V / 10 mA)
Communication via Ethernet, Modbus TCP
Communication with blade detection unit via ZigBee 2.4 GHz
For mounting on 35 mm DIN rail according to EN 60715 Measuring Devices and Accessories

Valid as of August 1, 2020 You will find detailed product information on our website 117