Manual drive for connector without earthing, under-line mounting, rotary motion NRA BSW-14 w.II 03-575

Manual drives for disconnectors – reliability and precision in operation

This manual drive, model NRA BSW-14 w.II, is designed for operating disconnectors without earth switches, mounted below the line. Its construction ensures smooth rotational movement, enabling safe and efficient control of circuits. It is a key element in electrical power systems, providing the ability to manually switch and isolate sections of the network.

This drive is compatible with various types of disconnectors manufactured by ALPAR, making it a universal solution for installers and network operators. Mounting is done with two M10 screws, simplifying the installation and servicing process. The drive's design is intended for long-term operation in harsh weather conditions, and the galvanized coating provides effective corrosion protection.

Application and functionality

The NRA BSW-14 w.II manual drive finds wide application in overhead medium voltage (MV) lines. It enables safe and precise operation of disconnectors, which is particularly important during maintenance, repair work, and circuit switching. Thanks to its construction, this drive ensures simultaneous closing and opening of all poles of the disconnector, minimizing the risk of errors and increasing work safety. It can be used in both horizontal and vertical mounting configurations, adapting to the specifics of a particular installation. Additionally, this drive can be coupled with the disconnector drive mechanism also using the NEA or NRMA(u) motor drive – providing flexibility in the choice of control method.