Your dashboard services.
Register to access all tools.

DEHNguard protects wind turbines

Type 2 arrester for voltages up to 1000 V

Combines two contrast: High system voltage and low voltage protection level

The undesired tripping of a surge protective device (SPD) in case of voltage peaks up to 2,200 Vpeak used to be a problem especially in wind turbines.

DEHNguard DG SE H 1000 VA comprises a varistor connected in series with a gas discharge tube which prevents undesired tripping of the SPD. This type 2 arrester is therefore ideally suited for use in wind turbines – particularly for protecting double fed induction (DFI) generators.

More space on the DIN rail – Width of only 4.5 standard DIN modules

Compared to the previous solution which required 8 standard DIN modules, compact surge protection including protection of terminal equipment is now ensured on 4.5 standard DIN modules.

Previous solution
New solution

Your benefits at a glance

  • Excellent protection thanks to low voltage protection level (≤ 5 kV)
  • Universal use: The series connection of a varistor and a gas discharge tube prevents tripping up to 2,200 Vpeak
  • Space-saving installation (4.5 standard DIN modules = 81 mm instead of 8 standard DIN modules)
  • Long service life thanks to high discharge capacity up to 40 kA (8/20 µs) and absence of leakage currents
  • Vibration and shock-proof thanks to module locking system
  • Easy function monitoring by means of visual indication and remote signalling contact

Further fields of application

weitere Anwendungsbereiche

Use in further fields of application

Due to the combination of high system voltages and a low voltage protection level, DEHNguard SE H 1000 VA can also be used in other fields of application:

  • Photovoltaic systems: On the a.c. side of the central inverter with d.c. offset.
  • Railway systems: Wherever galvanic isolation and high system voltage is required.
  • Industrial plants: For system voltages exceeding 690 V.
  • Cable cars: For system voltages exceeding 690 V.

Technical details:

Surge arrester Type 2 DEHNguard SE 1-pole Uc 1000V AC, varistor + GDT

Single-pole DEHNguard SE H LI surge arrester comprising a base part and plug-in protection modules. High discharge capacity thanks to powerful zinc oxide varistors. For protecting low-voltage consumer´s installations against surges. For installation in conformity with the lightning protection zone concept at the boundaries from 0B – 1 and higher.

Contact

Have you got any queries? Contact us.

DEHN INDIA Pvt. Ltd.

Phone: +91 124 4007680

contact Write an email
back to top