Users of the AEMC® Tower & Substation GroundFlex™ are able to test both ground resistance of tower legs (individually and total) and overhead ground wires. Unlike traditional earth testers, the Model 6472 offers the possibility of analyzing the frequency behavior of earthing systems up to 5 kHz. By employing a high-frequency measurement signal it is possible to assess the behavior of an earthing system in the event of lightning. Other features include Bond Resistance, Ground Resistance, Soil Resistivity, Ground Coupling, Selective Ground Resistance using a Current Probe and Step & Touch Potential Testing.
Utility Integration Solutions, Inc. (UISOL), the utility industry business integration specialist, has delivered PJM Interconnection's (PJM) next-generation demand response management system. PJM's members began using the system in June. PJM implemented new technology to facilitate the continued, significant growth of demand response in the years ahead.