The new Avtron dynamic braking resistors from Westek Electronics are specifically designed for stressful, corrosive atmosphere environments including outdoors and marine applications. These new dynamic braking resistors have absorbing capacities to 800 kilowatts and in excess of this. Typical voltages available on the dynamic breaking resistors (these can be specified by the client) range from 690 volts DC to in excess of 1090 volts. Together with the energy absorbing capacity, the Avtron resistors are suitable for applications including land and offshore drilling rigs and for braking duties including hoist motors, drilling rig top drives, etc.
The construction of Avtron dynamic resistors incorporates Avtron’s unique Helidyne load elements, constructed from fully-supported corrosion resistant chromium alloy wire. Cooling in vertical or horizontal mode is provided from integrally-mounted blower motors. Avtron’s designs use highly rugged enclosures including stainless steel construction as an option to standard aluminium versions.