DEHNguard protects wind turbines

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 V_peak 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.