Solution for comprehensive protection against overvoltages of wind generator installations

Today, wind generator installations gain popularity as one of the most affordable and simple methods of autonomous electrification of facilities.

Wind turbines are usually installed in open areas at high altitude, in the result of what, they are particularly exposed to lightning impact. To ensure safe and reliable operation, they must be appropriately protected against overvoltage. We offer you a special offer for the protection of wind turbines.

In the functional scheme of wind power there are the following elements and circuits that require overvoltage protection:

  • the main power supply;
  • communication lines;
  • switchboard and control cabinet;
  • converter;
  • generator;
  • power control, measurement and automation system;
  • signal lighting and weather sensors;
Solution for comprehensive protection against overvoltages of wind generator installations
 

Generator protection

Electrical connection between the generator of wind turbines and the transformer station is most often performed by a line of voltage of 400/690 V with TN or IT grounding system. For such voltages, we offer specially designed SPDs. PowerPro BC TNC 50-440 / 690 represent surge arresters of Class 1+2, with high resistance to lightning currents (150 kA 10/350 ms). They provide a limit voltage in the main power circuit to the level of 2.5 kV.

LEUTRON also developed a proposal to provide generator protection of level II: EnerPro CST 440 (TN system) and EnerPro EC 750 FM TNC (IT-system).

 

Comprehensive protection scheme of a windmill installation from surges

Схема защиты от перенапряжений ветрогенераторной установки
 

 

Installation site

 

 

Arresters

 

 

Product item

 

 

1

 

24 V power supply (DC)

Signal lines

Trunk main

RS 485/

EP D TN 24V/16A

DP2x1-24V/24V-0.3 Ohm

DP2x1 SDSL-Tr

DP-RS 485-Tr

LE-380-550

LE-262-424

LE-240-018

LE-370-485

 

2

 

Power supply 230/400 V

EP C S T 275

LE-381-270

 

3

 

Generator stator:

system 400/690 B TN

system 690 IT

Special solutions:

 

 

EP C S T 440

EP WE TNC 750

NAK 600TT-100kA

PP WEA Y 1000

 

 

LE-381-300

LE-381-706

LE-378-001

LE-377-052

 

4

 

Generator rotor:

system 400/690 B TN

system 690 IT

Special solutions:

 

 

EP C S T 440

EP WE TNC 750

NAK 600TT-100kA

PP WEA Y 1000

 

 

LE-381-300

LE-381-706

LE-378-001

LE-377-052

 

5

 

Signalling line, weather sensors

DPS 2x1 ST

DPS 2x1 ... HF

LE-261-002

LE-261-004

 

6

 

Rotor core (230/400 V power supply)

Signal lines

EP C S T 275

DPS 2x1 ST

DPS 2x1 HF

LE-381-270

LE-261-002

LE-261-004

 

7

 

Main power supply (400/690 B TN or IT)

PP BC TNC 50-400/690

LE-374-504

 

8

 

Converter

Special solutions:

EP C S T 440

EP WE TNC 750

NAK 600TT-100kA

PP WEA Y 1000

LE-381-300

LE-381-706

LE-378-001

LE-377-052

 

9

 

Switchboard and control cabinet (power supply 230/400 V)

EP C S T 275

LE-381-270

 

10-11

 

Automation

Signal lines, trunk main

EP D TN 24V/16A

DPS 2x1 ST

LE-380-550

LE-261-002

 

12

 

Modem (power supply 230/400 V)

Telecommunications lines

EP C S T 275

DPS 2x1 ... HF

DP RJ45 f/f

LE-381-270

LE-261-004

LE-240-011

Individual selection

In case if your wind power generation system possesses atypical characteristics or has unique patrameters, you can always contact our  technical center.

The extensive range of the SPDs we offer allows us to choose an individual protection complex that meets all the requirements of reliability and efficiency.

Purchase

You can see the current prices and acquire necessary devices for surge protection in a convenient online store on a separate page "Purchase".


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