ABB REF615 Product Manual

Also see for relion REF615: Applications manual Point List Manual Applications manual Applications manual Operation manual

Contents

ABB30Feeder Protection and ControlREF615Product version: 2.01MRS756379 DTable 36. Three-phase undervoltage protection (PHPTUV)OperationaccuracyDepending on the frequency of the voltage measured: fn ±2Hz±1.5% of the set value or ±0.002 x UnStart time 1) 2) Minimum Typical MaximumUFault = 0.9 x set Start value 62 ms 64 ms 66 msReset time < 40 msReset ratio Depends on the set Relative hysteresisRetardation time < 35 msOperate time accuracy in definite time mode ±1.0% of the set value or ±20 msOperate time accuracy in inverse time mode ±5.0% of the theoretical value or ±20ms 3)Suppression of harmonics DFT: -50dB at f = n x fn,where n = 2, 3, 4, 5,…Table 37. Three-phase undervoltage protection (PHPTUV) main settingsParameter Function Value (Range) StepStart value PHPTUV 0.05...1.20 x Un 0.01Time multiplier PHPTUV 0.05...15.00 0.05Operate delay time PHPTUV 60...300000 ms 10Operating curve type 1) PHPTUV Definite or inverse timeCurve type: 5, 15, 21, 22, 231) Start value = 1.0 x Un, Voltage before fault 1.1 x Un, fn = 50 Hz, undervoltage in one phase-to-phase with nominalfrequence injected from random phase angle, results based on statistical distribution of 1000 measurements2) Includes the delay of the signal output contact3) Minimum Start value = 0.50, Start value multiples in range of 0.90 to 0.201) For further reference please refer to the Operating characteristics table at the end of the Technical data chapterTable 38. Positive sequence undervoltage protection (PSPTUV)OperationaccuracyDepending on the frequency of the voltage measured: fn ±2Hz±1.5% of the set value or ±0.002 x UnStart time 1) 2) Minimum Typical MaximumUFault = 0.99 x set Start value 51 ms 53 ms 54 msUFault = 0.9 x set Start value 43 ms 45 ms 46 msReset time < 40 msReset ratio Depends on the set Relative hysteresisRetardation time < 35 msOperate time accuracy in definite time mode ±1.0% of the set value or ±20 msSuppression of harmonics DFT: -50dB at f = n x fn,where n = 2, 3, 4, 5,…1) Start value = 1.0 x Un, Positive sequence voltage before fault 1.1 x Un, fn = 50 Hz, positive sequence undervoltagewith nominal frequence injected from random phase angle, results based on statistical distribution of 1000measurements2) Includes the delay of the signal output contact