Load Control

The load control uses digital signal processing techniques to provide significantly

improved accuracy and speed of response over conventional analog

measurement techniques. Accuracy is improved because the instantaneous

measurement of the voltage and current signal wave forms allows true RMS

measurement. Measuring true RMS power allows optimal load control in parallel

applications even in the presence of power line distortions. This method provides

faster response time because it eliminates the long integration times required in

analog circuits. Measurement speed is particularly important in power control

applications where rapid response to load and speed changes is essential.

Load control begins at breaker closure when the MSLC takes control of the

system load. The system load immediately prior to breaker closure is used as the

starting base load. On command, the adjustable ramp allows smooth, time

controlled loading into a set import/export level. A ramp pause switch is provided

to stop the ramp at any point.