Feeder Protection Relay REF 610 - APE Distribuidor ABB

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Feeder Protection RelayREF 610Insulation testDielectric tests:• Test voltageImpulse voltage test:• Test voltageInsulation resistance measurementsIsolation resistanceAccording to IEC 60255-52 kV, 50 Hz, 1 minAccording to IEC 60255-55 kV, unipolar impulses, waveform1.2/50 μs, source energy 0.5 JAccording to IEC 60255-5>100 MΩ, 500 V DCMechanical testsVibration tests (sinusoidal)Shock and bump testAccording to IEC 60255-21-1, class IAccording to IEC 60255-21-2, class IData communication for front interfaceFront interface:• Optical connection (infrared) via the front communication cable (1MRS050698)• SPA bus protocol• 9.6 or 4.8 kbps (9.6 kbps with front communication cable)Protection functionsStage I>, I>> and I>>>Feature Stage I> Stage I>> Stage I>>>Set start value, I>, I>> and I>>>• at definite-time characteristic• at IDMT characteristic0.30...5.00 x I n0.30...2.50 x I na)0.50...35.0 x I n0.50...35.0 x I nStart time, typical 55 ms 30 ms 30 msTime/current characteristic• definite-time operate time, t>,t>> and t>>>• IDMT according to IEC 60255-3time multiplier, k• Special type of IDMTcharacteristictime multiplier, k• IDMT according toIEEE C37.112time dial, n0.05...300 sExtremely inverseVery inverseNormal inverseLong-time inverse0.05...1.00RI-type inverseRD-type inverse(RXIDG)0.05...1.00Extremely inverseVery inverseInverse1...150.04...300 s 0.04...300 s12ABB
Feeder Protection RelayREF 6101MRS756295(continued)Feature Stage I> Stage I>> Stage I>>>Resetting time, maximum 50 ms b) 50 ms 50 msRetardation time, typical 30 ms 30 ms 30 msSet resetting time, t r>0.05...2.50 sDrop-off/pick-up ratio, typical 0.96 0.96 0.96Operate time accuracy• at definite-time characteristic• at IDMT characteristic accordingto IEC 60255-3:accuracy class index E• at IDMT characteristic accordingto IEEE C37.112• at RI-type characteristic• at RD-type characteristic(RXIDG)Operation accuracy• 0.3...0.5 x I n• 0.5...5.0 x I n• 5.0...35.0 x I n±2% of the setoperate time or±25 ms5±7% of the calculatedoperatetime±7% of the calculatedoperatetime±7% of the calculatedoperatetime±5% of the setstart value±3% of the setstart value±2% of the setoperate time or±25 ms±3% of the setstart value±3% of the setstart value±2% of the setoperate time or±25 ms±3% of the setstart value±3% of the setstart valuea) As the maximum measured current is 50 × I n, a predefined current setting of 2.5 x I nis used for the operate timecalculation at IDMT mode of operation, if the set start value is greater than 2.5 x I n. This will speed up the operationof the relay making the operate time shorter than the theoretical IDMT curve would imply. However, the stage alwaysstarts according to the set start value.b) Resetting time of the trip signal.Stages I 0> and I 0>>Feature Stage I> Stage I>>Set start value, I 0> and I 0>>• at definite-time characteristic1.0...100% I n5.0...800% I n• at IDMT characteristica)1.0...100% I nStart time, typical 60 ms 50 msABB 13
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Feeder Protection Relay REF 610 - APE Distribuidor ABB

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