Modeling of relays' communication assisted protection schemes.Detailed modeling of distance relays using make- and model-specific parameters and operating logic.Comes with an extensive relay library that can be edited by the user. Detailed modeling of fuses, reclosers, and overcurrent relays.Modeling of current-limited generators for wind and solar plants.Accurate modeling of 2- and 3-winding transformers,phase shifters, lines, switch, series capacitors (with and without nonlinear MOV elements), generators, loads, shunts, dc lines, and zero-sequence mutual coupling.Easy-to-use interactive graphics interface under Windows XP, Vista and Window 7.The following are some highlights of OneLiner: The engineer can change the relay settings and network configuration and see the results of the change immediately.ĪSPEN OneLiner is the leading short circuit and relay coordination program with a 46% market share, according to an independent survey of 87 utilities in 24 countries (55 in the US, 12 in Europe, 3 in Latin America, 7 in Asia Pacific, 5 in the Middle East and Africa, and 5 in Canada) by Newton-Evans Research Co., Inc. OneLiner works very quickly under the control of the engineer. It relieves the engineer from the tedious and time-consuming tasks of leafing through stacks of printouts and plotting and re-plotting relay curves and one-line diagrams.

ASPEN OneLiner™ is a PC-based short circuit and relay coordination program for relay engineers.

Aspen one liner software