S.S. Punched grid Resistance Boxes are designed to meet requirements of A.C & D.C. application for E.O.T. Cranes, Winches, Rubber Mills, Flour Mills, Coal Mines, Cement Mills, Power Plants, Conveyors, Coke Oven, Blowers etc. for Speed control and developing Starting Torque. S.S. Punched grid Resistance Boxes consist of Grids Punched from Nickel Chromium Steel Alloy Sheet. These grids are shock and vibration proof. These resistors are specially suited for Steel mill duty, Coal mines etc...
| Materials | Stainless steel |
| Enclosure | Galvanized sheet steel |
| Cooling | Natural air cooled |
| Mounting Position | floor |
| Cable Entry | Bottom |
| Rated Voltage | 600 V |
| Current Rating | 8 Amp to 800 Amp |
| Over Ambient Temperature | 375° C |
The property of resistors to dissipate heat can be used to slow down a mechanical system. This process is called dynamic braking and such a resistor is called a dynamic braking resistor (or simply a brake resistor). To decelerate an electric motor, kinetic energy is transformed back into electrical energy. This energy is dissipated using a power resistor. Dynamic braking can be rheostatic and regenerative. In rheostatic braking, the energy is dissipated as heat in a resistor. In regenerative braking, the electric power is fed back in the system. The last option generally has a higher cost. Brake resistors are used for (small) motion systems, but also for large constructions such as trains or trams. A big advantage over friction braking systems is the lower wear and tear and faster deceleration.
| Materials | Stainless steel |
| Enclosure | Galvanized sheet steel |
| Cooling | Natural air cooled |
| Mounting Position | Any Position |
| Cable Entry | Bottom |
| Rated Voltage | 600 V |
| Current Rating | 8 Amp to 800 Amp |
| Over Ambient Temperature | 800° C |
