Manual drive for a connector with earthing, line-side mounting, rotational movement NRA BSW-14 w.II 03-577

Manual drive for disconnectors – reliability and precision in operation

This manual drive, model NRA-u BSW-14 w.II, is designed for operating grounded disconnectors, mounted below the line. It provides smooth and controlled rotational movement, essential for safe and efficient circuit switching. It is a key element of the power infrastructure, enabling both manual and remote control.

Design and application

This drive is designed to work with various types of overhead disconnectors manufactured by ALPAR, including ON, OUN, ONp and OUNp disconnectors. Under-line mounting provides convenience and accessibility during maintenance and repairs. The drive mechanism is connected to the disconnector with two M10 screws, guaranteeing a stable and secure connection. The drive design allows simultaneous closing and opening of all poles of the disconnector, significantly simplifying the switching process.

The use of a manual drive is particularly important in emergency situations or during maintenance work, where access to power may be limited or impossible. It allows for safe isolation of a section of the network in order to carry out the necessary work.

Advantages and benefits

• Versatility: compatible with a wide range of ALPAR disconnectors – both horizontal and vertical (ON, OUN, ONp, OUNp).
• Simple installation: quick and easy connection to the disconnector using standard M10 screws.
• Pole synchronization: simultaneous closing and opening of all poles ensures safety and efficiency of operation.
• Reliability: solid construction guarantees long-lasting and trouble-free operation even in harsh weather conditions.
• Safety: enables manual control in emergency situations or during maintenance work without the need for access to power.
• Durable corrosion protection: zinc coating applied by immersion method protects elements against external factors.
• Modularity: possibility of use in various installation configurations thanks to compatibility with modular ALPAR disconnectors (ONM, OUNM).