4.1.4.11 Technical dataTable 229:DPH3xPDOC Technical dataCharacteristic ValueOperationaccuracyDPH3LPDOC Depending on the frequency of the current measured: fn ±2HzCurrent: ±1.5% of the set value or ±0.002 x InVoltage: ±1.5% of the set value or ±0.002 x UnPhase angle: ±2°DPH3HPDOC ±1.5% of set value or ±0.002 x In (at currents in the rangeof 0.1…10 x In)±5.0% of the set value (at currents in the range of 10…40 xIn)Voltage: ±1.5% of the set value or ±0.002 x UnPhase angle: ±2°Start time1)2) Minimum Typical MaximumIFault = 2 x setStart value38 ms 40 ms 43 msReset time < 40 msReset ratio Typical 0.96Retardation time < 35 msOperate time accuracy in definite timemode±1.0% of the set value or ±20 msOperate time accuracy in inverse timemode±5.0% of the theoretical value or ±20 ms3)Suppression of harmonics RMS: No suppressionDFT: -50 dB at f = n x fn, where n = 2, 3, 4, 5,…Peak-to-Peak: No suppressionPeak-to-Peak + backup: No suppression1)Measurement mode andPol quantity = default, current before fault = 0.0 x In, voltage before fault =1.0 x Un, fn = 50 Hz, fault current in one phase with nominal frequency injected from random phaseangle, results based on statistical distribution of 1000 measurements.2) Includes the delay of the signal output contact.3) MaximumStart value = 2.5 x In,Start value multiples in range of 1.5 to 20.4.1.5 Three-phase thermal protection for feeders, cables anddistribution transformers T1PTTR4.1.5.1 IdentificationFunction description IEC 61850identificationIEC 60617identificationANSI/IEEE C37.2device numberThree-phase thermal protection forfeeders, cables and distributiontransformersT1PTTR 3lth> 49F1YHT530004D05 D Section 4Protection functions615 series 225Technical Manual
