Siemens Corp. - Washington, DC
Manufacturer, Custom Manufacturer, Manufacturers' Rep, Service Company
Worldwide manufacturer of transformer & switchgear protective relays. Protective relays include high-impedance differential protection relays, numerical voltage, frequency & overexcitation protection relays, motor protection relays, differential protection relays, distance protection relays & overcurrent protection relays. Distance protection relays for transmission lines feature self-setting power swing detection for frequencies up to 7 Hz., digital relay-to-relay communication for 2 & 3 terminal topologies & adaptive auto-reclosure (ADT). Numerical voltage, frequency & overexcitation protection relays feature auxiliary voltages of 24 VDC, 48 VDC, 60 VDC, 110 VDC, 125 VDC, 220 VDC, 250 VDC & 115 VAC, local operation & LCD for setting & analysis.