ABB REB670 Operator's Manual
Also see for RELION REB670: Product guideInstallation manualTechnical reference manualInstallation manualProduct guide
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Contents
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Displays some instances of TRPTTR with several settable parameters per instance.Typical settings are length of pulse for trip signal, reference current as a percentageof the base system current and several other related settings.9.3.3.9 Four step single phase overcurrent protection PH4SPTOCMain menu/Settings/Setting group N/Current protection/PhaseOvercurrent4Step1Ph(PTOC,51_67)/PH4SPTOC:xEach occurrence of PH4SPTOC:x has five subsections. These are General, Step1,Step2, Step3 and Step4. In the general folder there are settings for Operation, Basecurrent (IBase) and second harmonic stabilization. The step sections include anumber of settings and are similar to one another.9.3.4 Voltage protection9.3.4.1 OverviewFor Voltage protection there are settings for Under-voltage, Over-voltage, Residualover-voltage and Overexcitation protection. There are three instances of parametersin each category except in the case of Overexcitation which has two instances.Each instance consists of a number of parameters that make it possible to switchthe function On or Off, set rated quantities or make other adjustments necessary forthe fine tuning of the function itself.9.3.4.2 Loss of voltage check LOVPTUVMain menu/Setting/Setting Group N/Voltage protection/LossOfVoltage(PTUV,27)/LOVPTUV:xParameters for voltages and timers are set here.9.3.4.3 Two step overvoltage protection OV2PTOVMain menu/Settings/Setting Group N/Voltage protection/OverVoltage2Step(PTOV,59)/OV2PTOV:xDisplays several settable parameters including settings for IDMT curves and otherfunction related settings.9.3.4.4 Two step residual overvoltage protection ROV2PTOVMain menu/Settings/Setting Group N/Voltage protection/ResidualOverVoltage2Step(PTOV,59N)/ROV2PTOV:xDisplays up to several settable parameters for characteristics and many relatedparameters.1MRK505209-UEN E Section 9Read and change settings59Operator's manual |
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