Description
WHAT IS A RIPPLE?
The low-level signal voltages or ripple control signals injected into the distribution network at various frequencies are used to control off-peak appliances. Mains signalling is also referred to as ripple control signals. The signals are commonly used to switch the metering for hot water and heating systems. Generally, the power utility will use a specifc frequency for a Suburb and a different frequency for a neighbouring Suburb.
The two most common frequencies are 1050Hz and 750Hz. The DRM1050 and DRM750 are filters designed to reduce or eliminate the effects of mains signalling that some power utilities generate.