| 摘要 |
<p>A responsive load device, which includes a means for receiving an input indicative of the frequency of the mains power supplied to a load from a grid, and a means responsive thereto to determine a level of stress under which the grid is operating, is disclosed. The frequency of the mains grid is detected and used to determine a stress level under which the grid is operating. Detection of a high frequency is indicative of too little a load on the electrical power being supplied to the grid and therefore, a low stress situation. A high stress condition may exist if there is too much load for the power being supplied to the grid. Adjustment of the power consumption of the load is prevented if the high and/or low stress states are determined. If a critical high or low stress condition is determined, the load is either prevented from consuming power completely, or the load is set to a maximum power consumption state respectively.</p> |
