GE Multilin B30 Bus Differential System 2-172 PRODUCT DESCRIPTION 2.2 SPECIFICATIONS22.2.5 INPUTSAC CURRENTCT rated primary: 1 to 50000 ACT rated secondary: 1 A or 5 A by connectionRelay burden: < 0.2 VA at rated secondaryConversion range:Standard CT: 0.02 to 46 × CT rating RMS symmetricalSensitive Ground CT module:0.002 to 4.6 × CT rating RMS symmetricalCurrent withstand: 20 ms at 250 times rated1 sec. at 100 times ratedcontinuous 4xInomURs equipped with 24 CT inputs have amaximum operating temperature of 50°CShort circuit rating: 150000 RMS symmetrical amperes, 250V maximum (primary current to externalCT)AC VOLTAGEVT rated secondary: 50.0 to 240.0 VVT ratio: 1.00 to 24000.00Relay burden:< 0.25 VAat 120 VConversion range: 1 to 275 VVoltage withstand: continuous at 260 V to neutral1 min./hr at 420 V to neutralFREQUENCYNominal frequency setting:25 to 60 HzSampling frequency: 64 samples per power cycleTracking frequency range:20 to 70 HzCONTACT INPUTSDry contacts: 1000 Ω maximumWet contacts: 300 V DC maximumSelectable thresholds: 17 V, 33 V, 84 V, 166 VTolerance: ±10%Contacts per common return: 4Recognition time: < 1 msDebounce time: 0.0 to 16.0 ms in steps of 0.5Continuous current draw:4 mA (when energized)CONTACT INPUTS WITH AUTO-BURNISHINGDry contacts: 1000 Ω maximumWet contacts: 300 V DC maximumSelectable thresholds: 17 V, 33 V, 84 V, 166 VTolerance: ±10%Contacts per common return: 2Recognition time: < 1 msDebounce time: 0.0 to 16.0 ms in steps of 0.5Continuous current draw:4 mA (when energized)Auto-burnish impulse current: 50 to 70 mADuration of auto-burnish impulse: 25 to 50 msDCMA INPUTSCurrent input (mA DC): 0 to –1, 0 to +1, –1 to +1, 0 to 5, 0 to 10,0 to 20, 4 to 20 (programmable)Input impedance: 379 Ω ±10%Conversion range: –1 to + 20 mA DCAccuracy: ±0.2% of full scaleType: PassiveRTD INPUTSTypes (3-wire): 100 Ω Platinum, 100 & 120 Ω Nickel, 10Ω CopperSensing current: 5 mARange: –50 to +250°CAccuracy: ±2°CIsolation: 36 V pk-pkIRIG-B INPUTAmplitude modulation: 1 to 10 V pk-pkDC shift: TTL–CompatibleInput impedance: 50 kΩIsolation: 2 kVREMOTE INPUTS (IEC 61850 GSSE/GOOSE)Input points: 32, configured from 64 incoming bit pairsRemote devices: 16Default states on loss of comms.: On, Off, Latest/Off, Latest/OnRemote DPS inputs: 5DIRECT INPUTSInput points: 32Remote devices: 16Default states on loss of comms.: On, Off, Latest/Off, Latest/OnRing configuration: Yes, NoData rate: 64 or 128 kbpsCRC: 32-bitCRC alarm:Responding to: Rate of messages failing the CRCMonitoring message count: 10 to 10000 in steps of 1Alarm threshold: 1 to 1000 in steps of 1Unreturned message alarm:Responding to: Rate of unreturned messages in the ringconfigurationMonitoring message count: 10 to 10000 in steps of 1Alarm threshold: 1 to 1000 in steps of 1TELEPROTECTIONInput points: 16Remote devices: 3Default states on loss of comms.: On, Off, Latest/Off, Latest/OnRing configuration: NoData rate: 64 or 128 kbpsCRC: 32-bit
