Manual Ref615 Abb Setting
REF615 is a dedicated feeder protection and control relay for protection, control, measurement and supervision of overhead lines and cable feeders in utility and industrial power distribution systems, including radial, looped and meshed distribution networks, with or without distributed power generation. Compact and versatile solution for utility and industrial power distribution systems with integration of protection, control, monitoring and supervision in one relay.
Negative phase-sequence overcurrent protection (NSPTOC) Characteristic Value Operation accuracy Depending on the frequency of the currentmeasured: f n 2Hz ѱ1.5% of the set value or 0.002 x I n Start time 1)2) Minimum Typical Maximum I Fault = 2 x set Startvalue 22 ms14 ms 24 ms 16 ms 25 ms 17 ms I Fault = 10 x set Startvalue Reset time 3) Suppression of harmonics. Phase discontinuity protection (PDNSPTOC) Characteristic Value Operation accuracy Depending on the frequency of the currentmeasured: f n 2Hz ѱ2% of the set value Start time n, where n = 2, 3, 4, 5, Table 47.
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Phase discontinuity protection (PDNSPTOC) main settings Parameter Function Value (Range) Step Start value (Currentratio setting I PDNSPTOC 10.100% 1 2 /I 1 ) Operate delay. Circuit breaker failure protection (CCBRBRF) main settings Parameter Function Value (Range) Step Current value(Operating phase current) CCBRBRF 0.05.1.00 x I n 0.05 Current value Res (Operating residual current) CCBRBRF 0.05.1.00 x I n 0.05 CB failure mode (Operating mode of function) CCBRBRF 1=Current 2=Breaker status 3=Both CB fail trip mode CCBRBRF 1=Off 2=Without check 3=Current check Retrip time CCBRBRF 0.60000 ms 10 CB failure delay CCBRBRF 0.60000 ms 10 CB fault delay CCBRBRF 0.60000 ms 10 Table 50. Three-phase thermal overload (T1PTTR) Characteristic Value Operation. Three-phase inrush current detection (INRPHAR) Characteristic Value Operation accuracy At the frequency f=f n Current measurement:1.5% of the set value or ѱ0.002 x I n Ratio I2f/I1f measurement: 5.0% of the set value Reset time +35 ms / -0 ms Reset ratio Typical 0.96 Operate time accuracy +35 ms / -0 ms Table 53. Three-phase inrush detection (INRPHAR) main settings Parameter Function Value (Range) Step Start value (Ratio of the 2nd to the 1st harmonic leading to restraint) INRPHAR 5.100% 1 Operate delay time INRPHAR 20.60000 ms 1 Table 54. Arc protection (ARCSARC) Characteristic. Arc protection (ARCSARC) main settings Parameter Function Value (Range) Step Phase start value(Operating phase current) ARCSARC 0.50.40.00 x I n 0.01 Ground start value (Operating residual current) ARCSARC 0.05.8.00 x I n 0.01 Operation mode ARCSARC 1=Light+current 2=Light only 3=BI controlled Table 56.
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Operation characteristics Parameter Values (Range) Operating curve type 1=ANSI Ext. 4=ANSI Mod inv. Time 6=L.T.E. 10=IEC Very inv. Three-phase power and energy (PEMMXU) Characteristic Value Operation accuracy At all three currents in range 0.101.20 x I n At all three voltages in range 0.50Ņ1.15 x U n At the frequency f n 1HzActive power and energy in range PF 0.71Reactive power and energy in range PF n, where n = 2, 3, 4, 5, Table 65. Current circuit supervision (CCRDIF) Characteristic Value Operate time 1) 1)Including the delay of the output contact. Fuse failure supervision (SEQRFUF) Characteristic Value Operate time 1) NPS function U Fault = 1.1 x set NegSeq voltage Lev Fault = 5.0 x set NegSeq voltage Lev 1)Includes the delay of the signal output contact, f n = 50 Hz, fault voltage with nominal frequency injected fromrandom phase angle, results based on statistical distribution of 1000 measurements size='-1'.
The IED is available with two optionaldisplays, a large one and a small one. Both LCD displays offer full front-panel user- interface functionality with menu navigation and menu views.The large display offers increased front-panelusability with less menu scrolling and improved information overview. The largedisplay is suited for IED installations where the front panel user interface is frequently used, whereas the small display is suited for remotely controlled substations where the IED is only occasionally accessed locally via the front panel user interface.
IECA070904 V2 EN IECA070901 V2 EN. All ABB Oy Distribution Automation catalogues and technical brochures.