ABB RELION RET670, Руководство оператора

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Displays some instances of EF4PTOC with a large number of settings per instance.
Typical settings are those for harmonic restraint, minimum fundamental frequency
current level, base settings for current and voltage and several others.
9.3.4.14 Sensitive directional residual over current and power protection
SDEPSDE
Main menu/Settings/Setting group N/Current protection/
SensDirResOvCurr(PSDE,67N)/SDEPSDE:x
Includes voltage, current, operation mode and timer settings.
9.3.4.15 Thermal overload protection, one time constant LPTTR
Main menu/Settings/Setting Group N/Current protection/
ThermalOverload1TimeConst(PTTR,26)/LPTTR:x
Displays available instances of LPTTR with a number of settings per instance.
Typical settings are the hysteresis for start temperature, pulse length for operate
output, ambient temperature settings and so forth.
9.3.4.16 Thermal overload protection, two time constants TRPTTR
Main menu/Settings/Setting Group N/Current protection/
ThermalOverload2TimeConst(PTTR,49)/TRPTTR:x
Displays some instances of TRPTTR with several settable parameters per instance.
Typical settings are length of pulse for trip signal, reference current as a percentage
of the base system current and several other related settings.
9.3.5 Voltage protection
9.3.5.1 Overview
For Voltage protection there are settings for Under-voltage, Over-voltage, Residual
over-voltage and Overexcitation protection. There are three instances of parameters
in 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 switch
the function On or Off, set rated quantities or make other adjustments necessary for
the fine tuning of the function itself.
9.3.5.2 Loss of voltage check LOVPTUV
Main menu/Setting/Setting Group N/Voltage protection/LossOfVoltage(PTUV,
27)/LOVPTUV:x
Parameters for voltages and timers are set here.
1MRK504114-UEN E
Section 9
Read and change settings
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Operator's manual