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ENERCON E-40 Operating Instructions
Page 28 of 96 shut-down e.g. quick-stop
Emergency-stop
Rotor lock
Rotor brake e.g.
Vibrations grid failure e.g.
Overspeed
Pitch control error failure normal operation e.g. load shedding
Data bus error e.g.
Air gap monitoring
Bearing
temperature battery error e.g. oscillation generator
overtemperature overtemperature
converter grid error e.g.
Shadow stop
Turbine
stopped
(manually) e.g.
Storm
Lack of wind switch to emergency power supply for pitch motors switch to emergency power supply for pitch motors switch to emergency power supply for pitch motors rapid pitching of blades to feathered position rapid pitching of blades to feathered position rapid pitching of blades to feathered position rapid pitching of blades to feathered position pitching of blades to feathered position pitching of blades to 60°
(idling) pitching of blades to feathered position pitching of blades to 60°
(idling)
Application of mechanical rotor brake
Figure 6: Methods of stopping the E-40
3.7.2 Manual stopping in emergency stituations
If persons or parts of the turbine are in acute danger, the turbine can be stopped by pressing the emergency stop button or the quick stop button. On the control cabinet there is an quick stop button which initiates an immediate emergency braking of the rotor by means of a quick blade adjustment via the emergency pitch control units.
All turbine components continue to be supplied with power.
On the nacelle sub-distribution and, optionally, in the power cabinet (in versions with 42 m steel tower, upon opening the door of the power cabinet at a height of 1 m on the right) there are emergency stop buttons which in the same way as the emergency stop button ensure a quick stopping of the turbine and additionally switch off the power supply of yaw control, pitch control, excitation, winch and converter. The buttons are of the latching type; they have to be pulled back into their original position when the turbine is to be re-started and the emergency situation no longer exists.
By setting the main switch on the control cabinet to the OFF position, all turbine components, except for tower and control cabinet lighting and the separate light switches and socket outlets, are de-energized. Furthermore a quick blade adjustment via the rotor blade standby power supplies is initiated.
Operation
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