Surge protective measures in the tower base

Selection of the protective devices for the tower base depends on the end of life behaviour required of the arrester. Based on what is the decisive factor for you, permanent system availability or the safe condition after overloading, you choose the arrester technology which best suits your needs.

Permanent availability of the system with DEHNguard

If your priority is the permanent availability of the system, arresters with a defined disconnection of the protective elements from the current circuit in case of overload are suitable for you.
Devices from the DEHNguard family suit this purpose. These are also available with an optional integrated backup fuse and remote signalling contact. The protection modules can simply be replaced when necessary.

Safe condition of the system with DEHN V SCP

You want to make sure that the system is in a safe condition after overloading? DEHN V SCP arresters are the perfect choice. Here, a defined short-circuit is produced in the protective device which disconnects the system being protected in case of overload.

Download DEHN V SCP Data sheet

The protection concept

Product recommendations:

As a general rule, you should protect these 3 areas:

Medium-voltage energy side
Low-voltage energy side
Data side

A - DEHNguard M WE

Type 2 SPD with higher rated varistor voltage, especially for applications with higher voltage peaks, e.g. in inverters and the main supply.

A - DEHNguard SE CI WE

Type 2 SPD with higher rated varistor voltage, especially for applications with higher voltage peaks, e.g. in inverters and the main supply.

B - DEHNguard M TNC

To protect the voltage supply - type 2 arrester

C - DEHNbloc Maxi

To protect transformers on the low-voltage side - coordinated type 1 SPD for 440 V AC and 760 V AC.

C - DEHNbloc Maxi CI

To protect transformers on the low-voltage side - coordinated type 1 SPD with integrated backup fuse

E - BLITZDUCTOR XT

To protect signal, bus or control lines and Ethernet - type 1 SPD with LifeCheck (possibility of monitoring arresters via DEHNrecord)

E - DEHNrecord

Integration of Red/Line and Yellow/Line SPDs in a monitoring system

E - DRC SCM XT

Condition Monitoring of SPDs, fault indication both visual and via remote signalling contact

E - DRC LC M1+

Is the SPD fully functional? Portable device for quickly testing BXT arresters

Downloads

A - DEHN V SCP 1 480

Data sheet

A - DEHN V SCP 1 300

Data sheet

DEHN protects Wind Turbines

Brochure DS 103

Earth-termination system for onshore wind turbines

White paper WPX024

Earth-termination system for concrete and hybrid towers

White paper WPX025

DEHN protects Medium-Voltage Systems

Brochure DS 125

Contact

Have you got any questions? Contact us.

Technical Support Wind Turbines

Phone: +49 9181 906 1045

Topic wind turbines

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