Sepam - HV/MV Protection and control units (ENG) - Trinet

Transformer differential protection setting rangesAnsi TSM Parameters Commands Setting limits Unit Scope of settingsitem87T F591 Id/It Percentage Numeric Per cent 15 to 50%settingkeysId>> Differential Numeric Primary A 3 to 8Ib primaryhigh setkeysCoupl. Group vector Data + and - No units Star-star coupling: Yy0 - Yy6referencesdelta-star coupling:Yd1 - Yd3 - Yd5 - Yd7 - Yd9 - Yd11delta-star coupling:Dy1 - Dy3 - Dy5 - Dy7 - Dy9 - Dy11star-delta coupling withneutral in protected zone:Yd1+Go - Yd3+Go - Yd5+Go - Yd7+Go -Yd9+Go - Yd11+Godelta-delta coupling for protection test : test64REF F651 Iso Setting Numeric Amperes From 1 A to 5 kA, with the following conditions:keysfrom 0.05 InCT' to 0.8 InCT' if InCT' u 20 Afrom 0.1 InCT' to 0.8 InCT' if InCT' < 20 ARefer to the "testing" section for information on protection testing.For further information on protection function characteristics, refer to the main Sepam 2000 D01 technical manual.The time delays are factory-set to 200 ms by default.Time delayT1 = 0.2 sT2 = 0.2 sFunctionDuration of trippingorder O1 andindication O12Duration of trippingorder O2 andindication O13ParameterFunctionParameterization of inputsKP5 = 0 Inputs I15, I16, I17, I18 (buchholz/thermostat) activated by N/OcontactKP5 = 1 Inputs I15, I16, I17, I18 (buchholz/thermostat) activated by N/CcontactKP7 = 0 Inputs I1, I2 (auxiliaries 1) activated by N/O contactKP7 = 1 Inputs I1, I2 (auxiliaries 1) activated by N/C contactKP8 = 0 Inputs I13, I14 (auxiliaries 2) activated by N/O contactKP8 = 1 Inputs I13, I14 (auxiliaries 2) activated by N/C contactParameterization of outputsKP10 = 0 I2 (Aux.1) and I14 (Aux.2) trigger primary tripping (O2 and O13)KP10 = 1 I2 (Aux.1) and I14 (Aux.2) trigger primary and secondary tripping(O1 and O2, O12 and O13)KP13 = 0 Impulse outputs O1, O2, O12, O13 (tripping and indication)(set by T1 and T2)KP13 = 1 Latching outputs O1, O2, O12, O13 (tripping and indication)Maintenance and testingKP6 = 1 Changeover to test mode and inhibition of outputs O1, O2, O12and O13KP9 = 1 Inhibition of outputs O1, O2, O12 and O13KP20 = 1 Resetting of fault trip counterUse - commissioning2/11