Programmable variable-rate electric adapting device for watt-hour meters

A programmable variable-rate electric adapting device for watt-hour meters comprising:

• first terminals for connecting to the contact jaws of a watt-hour meter socket receptacle;
• second terminals for connecting to the blades of a watt-hour meter;
• and
• a variable rate circuit coupled to said first and second terminals so as to be in parallel with the line voltage measuring coil of the watt-hour meter, said variable rate circuit comprising:
• a digital clock for generating signals establishing the time;
• a programmer coupled to said digital clock to receive said signals establishing the time, to select a predetermined scaling rate stored in said programmer based upon the time, and to provide an output signal that is indicative of said selected predetermined scaling rate;
• a variable generator coupled to said programmer to receive said selected predetermined scaling rate output signal and to generate switch drive signals corresponding to said selected predetermined scaling rate;
• and
• a solid state actuating switch coupled to said variable generator and coupled to the line voltage measuring coil of the watt-hour meter when said variable-rate circuit is coupled to said second terminal, said actuating switch responding to said switch drive signals to either allow current from the line to flow through the line voltage measuring coil during an on cycle or to prevent current from flowing through said line voltage measuring coil during an off cycle.