Wind energy installation and procedure for the verification of a relay of the number of revolutions of a wind energy installation

摘要

Procedure for the verification of a relay of the number of revolutions (17) of a wind power installation (10), in which the wind power installation (10) comprises a number of revolutions sensor (20, 21, 22) for the number of revolutions of a tree (15, 16), in which the speed sensor (20, 21, 22) emits a speed number signal, in which the speed number signal is fed to a signal input (25, 26, 27) of the revolution number relay (17) and in which the revolution number relay (17) generates a disconnection instruction, when the number of revolutions of the shaft (15, 16 ) exceeds a limit value of the predetermined number of revolutions (ngrenz), with the following steps: a. inactivation of the revolution number signal fed to the revolution number relay (17); b. activation of a signal generator (28), which generates a test signal equivalent to the signal the number of revolutions and supply of the test signal to the signal input (25, 26, 27) of the revolution number relay ( 17); C. operation of the signal generator (28) with a test signal that is beyond the limit value of the speed (ngrenz); d. Verification of the disconnection instruction of the revolution number relay (17).