9.3.5 Voltage protection9.3.5.1 OverviewFor Voltage protection there are settings for Under-voltage, Over-voltage, Residual over-voltage and Overexcitation protection. There are three instances of parameters in eachcategory except in the case of Overexcitation which has two instances. Each instanceconsists of a number of parameters that make it possible to switch the function On orOff, set rated quantities or make other adjustments necessary for the fine tuning of thefunction itself.9.3.5.2 Loss of voltage check LOVPTUV (27)Main menu/Setting/Setting Group N/Voltage protection/LossOfVoltage(PTUV,27)/LOVParameters for voltages and timers are set here.9.3.5.3 Overexcitation protection OEXPVPH (24)Main menu/Settings/Setting Group N/Voltage protection/Overexcitation(PVPH,24)/OEX1Displays settable parameters for operation, rated current and voltage, time delays foruser designed curves and several other related settings.9.3.5.4 Two step overvoltage protection OV2PTOV (59)Main menu/Settings/Setting Group N/Voltage protection/OverVoltage2Step(PTOV,59)/TOVDisplays several settable parameters including settings for Time Overvoltage Curves(TOC) and other function related settings.9.3.5.5 Two step residual overvoltage protection ROV2PTOV (59N)Main menu/Settings/Setting Group N/Voltage protection/ResidualOverVoltage2Step(PTOV,59N)/TRVDisplays up to several settable parameters for characteristics and many relatedparameters.1MRK506276-UUS B Section 9Read and change settings59Operator's manual
