ABB SPAJ 160 C User Manual And Technical Description

Contents

ABB SPAJ 160 C User Manual And Technical Description Manual pdf 16 page image

16Protection units of module SPCJ 4D40Overload stage Ib >Starting current I b > 0.30...1.50 x I nStarting time <80 msOperation characteristic ANSI inverseTime multiplier k 0.2...2.0Resetting time <100 msDrop-off/pick-up ratio >0.95Operation time accuracy(k = 1.0 and Ib > = 0.50…1.50 x I n ) ±10% of theoretical value or ±50 msOperation accuracy ±3% of set valueShortest possible trip time ~100 msOverload stage Ia >Starting current Ia > 80...120% x Ib >Operating time 0.50...100 minResetting time <250 msDrop-off/pick-up ratio >0.95Operation time accuracy ±2% of set valueOperation accuracy ±3% of set valueUndercurrent stage I<Starting current I< 0.10...0.70 x I nOperating time 1.0...100 sReconnection time 0.50...100 minPulse shaped tripping signal,pulse length ~200 msPick-up/drop-off ratio <1.1Operation time accuracy ±2% of set value or ±75 msOperation accuracy ±3% of set value within range 0.25...0.70 x I nPhase unbalance ∆I 1 >, Stage 1Starting current ∆I 1 > 1.0...100% ∆I n *)Operating time 1.0...300 sResetting time <100 msDrop-off/pick-up ratio >0.90Operation time accuracy (∆I cs = 0) ±2% of set value or ±75 msOperation accuracy (∆I cs = 0) ±3% of set value within range 1.5...100% ∆InPhase unbalance ∆I 2 >, Stage 2Starting current ∆I 2 > 2.0...80.0% ∆I n *)Starting time <70 msOperation characteristic Inverse timeTime multiplier k∆2 0.1...1.0Resetting time <100 msDrop-off/pick-up ratio >0.90Operation time accuracy of theoreticalcharacteristic (∆I cs = 0) 7.5% or ±35 msOperation accuracy (∆I cs = 0) ±3% of set valueShortest possible trip time ~100 msSetting of compensation 0.0...20.0% ∆I nOperation accuracy <3% of ∆I n*) minimum recommended: 3.0% ∆I n