High voltage switchgear power supply arrangement for a wind turbine facility

A wind turbine facility switchgear power supply controlling system, comprising:

• a wind turbine facility power comprising:
• a first electrical power supply path configured to provide electrical power to the power supply of the switchgear;
• a first power switch configured to break said first electrical power supply path;
• at least one parallel electrical power supply path configured to provide electrical power to the power supply of the switchgear and further configured to be breakable by at least one respective parallel power switch;
• a plurality of control switches, wherein each control switch is configured to be open when a respective one of the power switch and parallel power switch is open and closed when a respective one of the power switch and parallel power switch is closed;
• and
• a control arrangement configured to carry out at least one of opening and closing the power switches, and determining a status of the series control circuit.

A wind turbine facility having a power supplying arrangement for supplying electrical power to a power supply for a switchgear, said switchgear being able to isolate the wind turbine facility from an electrical network, the facility comprising:

• a first electrical power supply path configured to provide electrical power to the power supply of the switchgear;
• a first power switch configured to break said first electrical power supply path;
• at least one parallel electrical power supply path configured to provide electrical power to the power supply of the switchgear;
• at least another respective parallel power switch configured to break the at least one parallel electrical power supply path;
• and
• a plurality of control switches, wherein each control switch is configured to be open when a respective one of the power switch and parallel power switch is open and closed when a respective one of the power switch and parallel power switch is closed.