Setting guidelines...................................................................... 541Equipment protection, such as for motors, generators,reactors and transformersEquipment protection fortransformers......................................................................... 542Equipment protection, capacitors......................................... 542Power supply quality............................................................ 542High impedance earthed systems........................................ 542Direct earthed system.......................................................... 543Settings for two step residual overvoltage protection...........544Overexcitation protection OEXPVPH ............................................ 546Identification.............................................................................. 546Application................................................................................. 546Setting guidelines...................................................................... 548Recommendations for input and output signals................... 548Settings................................................................................ 549Service value report............................................................. 550Setting example....................................................................550Voltage differential protection VDCPTOV ......................................552Identification.............................................................................. 552Application................................................................................. 552Setting guidelines...................................................................... 554Loss of voltage check LOVPTUV .................................................. 555Identification.............................................................................. 555Application................................................................................. 556Setting guidelines...................................................................... 556Advanced users settings...................................................... 556Radial feeder protection PAPGAPC............................................... 556Identification.............................................................................. 556Application................................................................................. 556Setting guidelines...................................................................... 557Section 11 Frequency protection....................................................559Underfrequency protection SAPTUF ............................................. 559Identification.............................................................................. 559Application................................................................................. 559Setting guidelines...................................................................... 559Overfrequency protection SAPTOF ...............................................560Identification.............................................................................. 560Application................................................................................. 561Setting guidelines...................................................................... 561Rate-of-change of frequency protection SAPFRC .........................562Identification.............................................................................. 562Application................................................................................. 562Setting guidelines...................................................................... 562Table of contents12 Line distance protection REL670 2.2 IECApplication manual
