| 摘要 |
<p>A system and method is described for expanding the load capacity of a cable system (15) or the like supplied with AC power from a source (10), without increasing the voltage-drops caused by load currents, by coupling additional loads to such a cable system (15) only during intervals ('Windows') of each half-cycle of the AC power during which instantaneous current values for existing loads (21, 25) are zero or near zero. The existing loads may be cut off from the power source (10) during such intervals. Also described is an arrangement for locating and replacing defective amplifiers (123) in a cable system, and for controlling gain, using a field strength meter (151), and for temperature compensating, using a sensor (165, 166), in a cable system by interposing or removing amplifier stages (123).</p> |
