Safe System Maintenance
Maintenance of wind power plants especially in off-shore installations make the highest demands on man and material. Harsh weather conditions at sea make the work difficult. To provide the maximum possible protection for employees and the required safety at work, ROEMHELD has developed – for the operators and manufacturers of wind power plants a hydraulic and electromechanical rotor lock that safely, reliably and quickly locks the rotor blade during maintenance works.
For maintenance works at on and offshore wind power plants, the safe and simple opening of the entrance into the installations is important. Access and maintenance flaps must safely maintain their position and resist the harsh environmental conditions of wind and weather. ROEMHELD linear actuators work reliably and are designed for these requirements with their high-quality processing.
Hydraulic and electromechanical rotor lock
The ROEMHELD rotor lock works with hydraulic or electromechanical locking mechanism and withstands side loads up to 5,500 kN. The double-acting hydraulic cylinder generates the retracting and extending motion of the bolt and reliably locks the rotor blade of wind power plants up to 6.5 MW within a temperature range from – 30°C to + 70 °C.
A mechanical or inductive position monitoring of the bolt transmits the final positions "Rotor blade secured" and "Rotor free" to the system control and ensures additional safety.
- Very compact and maintenance-free version
- Modular design enables customer-specific customization
- FEM calculation and certification according to DEWI
- According to the guidelines of
the Germanic Lloyd (GL) - Corrosion protection in accordance with test standard DIN ISO 12944
Electrical flap operation
Convenient access to the nacelle by electrical flap operation
For maintenance works at on and offshore wind power plants, the safe and simple opening of the entrance into the installations is important. Access and maintenance flaps must safely maintain their position and resist the harsh environmental conditions of wind and weather. ROEMHELD linear actuators work reliably and are designed for these requirements with their high-quality processing.
The ROEMHELD linear actuator RA 600 actuates flaps and hatches automatically at the push of a button. This electrical actuator is a complete function unit in a compact housing, and the sturdy design safely absorbs load peaks. The RA 600 generates maximum forces up to 6,000 N, that can be used as push or pull forces. The long and maintenance-free service life is a convincing feature.
The ROEMHELD linear actuator RA 600 actuates flaps and hatches automatically at the push of a button.
- Maintains the position also in case of power loss
- Corrosion-protected and vibration-resistant variants are available
- In addition suitable for regulation and control tasks
- Complies with the protection class
IP 66 and IP 69 K