Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo", uses=false) Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: translateModel(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY") translateModel(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001262/0.001262, allocations: 102.9 kB / 16.27 MB, free: 5.93 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001439/0.001439, allocations: 190.5 kB / 17.2 MB, free: 5.574 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.402/1.402, allocations: 222.9 MB / 240.9 MB, free: 15.24 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.7939/0.7939, allocations: 126.1 MB / 417.1 MB, free: 12.84 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001431/0.001431, allocations: 64.14 kB / 0.495 GB, free: 3.504 MB / 414.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.4654/0.4668, allocations: 78.69 MB / 0.5718 GB, free: 31.38 MB / 446.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY): time 0.01891/0.4858, allocations: 16.97 MB / 0.5884 GB, free: 19.15 MB / 446.1 MB Notification: Performance of NFInst.instExpressions: time 0.009223/0.495, allocations: 6.016 MB / 0.5943 GB, free: 14.43 MB / 446.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.00155/0.4966, allocations: 49.31 kB / 0.5943 GB, free: 14.42 MB / 446.1 MB Notification: Performance of NFTyping.typeComponents: time 0.003403/0.5, allocations: 1.48 MB / 0.5958 GB, free: 13.29 MB / 446.1 MB Notification: Performance of NFTyping.typeBindings: time 0.00272/0.5028, allocations: 1.059 MB / 0.5968 GB, free: 12.44 MB / 446.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.002528/0.5053, allocations: 1.042 MB / 0.5978 GB, free: 11.62 MB / 446.1 MB Notification: Performance of NFFlatten.flatten: time 0.004292/0.5096, allocations: 4.313 MB / 0.602 GB, free: 7.629 MB / 446.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.007018/0.5167, allocations: 6.009 MB / 0.6079 GB, free: 1.586 MB / 446.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.00374/0.5204, allocations: 1.925 MB / 0.6098 GB, free: 15.65 MB / 462.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.005087/0.5255, allocations: 2.291 MB / 0.612 GB, free: 13.36 MB / 462.1 MB Notification: Performance of NFPackage.collectConstants: time 0.001757/0.5273, allocations: 460 kB / 0.6124 GB, free: 12.91 MB / 462.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.003896/0.5313, allocations: 1.147 MB / 0.6136 GB, free: 11.76 MB / 462.1 MB Notification: Performance of NFScalarize.scalarize: time 0.003313/0.5346, allocations: 1.794 MB / 0.6153 GB, free: 9.961 MB / 462.1 MB Notification: Performance of NFVerifyModel.verify: time 0.004581/0.5392, allocations: 1.775 MB / 0.6171 GB, free: 8.18 MB / 462.1 MB Notification: Performance of NFConvertDAE.convert: time 0.008851/0.5481, allocations: 6.63 MB / 0.6235 GB, free: 1.531 MB / 462.1 MB Notification: Performance of FrontEnd - DAE generated: time 6.442e-06/0.5481, allocations: 0 / 0.6235 GB, free: 1.531 MB / 462.1 MB Notification: Performance of FrontEnd: time 1.814e-06/0.5481, allocations: 0 / 0.6235 GB, free: 1.531 MB / 462.1 MB Notification: Performance of Transformations before backend: time 0.0002463/0.5484, allocations: 4 kB / 0.6235 GB, free: 1.527 MB / 462.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 809 * Number of variables: 809 Notification: Performance of Generate backend data structure: time 0.007699/0.5561, allocations: 3.057 MB / 0.6265 GB, free: 14.41 MB / 478.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.678e-05/0.5562, allocations: 12.03 kB / 0.6265 GB, free: 14.4 MB / 478.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01064/0.5668, allocations: 2.018 MB / 0.6285 GB, free: 12.38 MB / 478.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003564/0.5704, allocations: 1.647 MB / 0.6301 GB, free: 10.68 MB / 478.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001848/0.5706, allocations: 230.5 kB / 0.6303 GB, free: 10.46 MB / 478.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0007698/0.5714, allocations: 292.4 kB / 0.6306 GB, free: 10.17 MB / 478.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01219/0.5836, allocations: 5.928 MB / 0.6364 GB, free: 4.152 MB / 478.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 5.123e-05/0.5837, allocations: 4 kB / 0.6364 GB, free: 4.148 MB / 478.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003544/0.584, allocations: 128 kB / 0.6365 GB, free: 4.023 MB / 478.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0003288/0.5844, allocations: 212.9 kB / 0.6367 GB, free: 3.812 MB / 478.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01389/0.5983, allocations: 5.967 MB / 0.6425 GB, free: 13.83 MB / 494.1 MB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.02861/0.6269, allocations: 22.97 MB / 0.665 GB, free: 4.848 MB / 0.4981 GB Notification: Performance of preOpt comSubExp (simulation): time 0.005112/0.632, allocations: 2.499 MB / 0.6674 GB, free: 2.227 MB / 0.4981 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.004397/0.6365, allocations: 1.818 MB / 0.6692 GB, free: 396 kB / 0.4981 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001785/0.6367, allocations: 114.1 kB / 0.6693 GB, free: 264 kB / 0.4981 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.085e-05/0.6367, allocations: 67.44 kB / 0.6694 GB, free: 188 kB / 0.4981 GB Notification: Performance of pre-optimization done (n=123): time 5.26e-06/0.6367, allocations: 3.984 kB / 0.6694 GB, free: 184 kB / 0.4981 GB Notification: Performance of matching and sorting (n=153): time 0.03564/0.6724, allocations: 11.78 MB / 0.6809 GB, free: 4.355 MB / 0.5137 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001602/0.6726, allocations: 226.9 kB / 0.6811 GB, free: 4.086 MB / 0.5137 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001654/0.6742, allocations: 1.07 MB / 0.6821 GB, free: 3 MB / 0.5137 GB Notification: Performance of collectPreVariables (initialization): time 0.000216/0.6745, allocations: 57.64 kB / 0.6822 GB, free: 2.938 MB / 0.5137 GB Notification: Performance of collectInitialEqns (initialization): time 0.0008031/0.6753, allocations: 1.258 MB / 0.6834 GB, free: 1.66 MB / 0.5137 GB Notification: Performance of collectInitialBindings (initialization): time 0.0005695/0.6759, allocations: 0.5277 MB / 0.6839 GB, free: 1.125 MB / 0.5137 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0007334/0.6766, allocations: 467.7 kB / 0.6844 GB, free: 0.6602 MB / 0.5137 GB Notification: Performance of setup shared object (initialization): time 0.0001215/0.6767, allocations: 334 kB / 0.6847 GB, free: 336 kB / 0.5137 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004337/0.6811, allocations: 1.844 MB / 0.6865 GB, free: 14.47 MB / 0.5294 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.004739/0.6858, allocations: 2.517 MB / 0.689 GB, free: 11.65 MB / 0.5294 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.009044/0.6949, allocations: 4.348 MB / 0.6932 GB, free: 7.004 MB / 0.5294 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.879e-05/0.6949, allocations: 4 kB / 0.6932 GB, free: 7 MB / 0.5294 GB Notification: Performance of matching and sorting (n=282) (initialization): time 0.01229/0.7072, allocations: 5.212 MB / 0.6983 GB, free: 1.758 MB / 0.5294 GB Notification: Performance of prepare postOptimizeDAE: time 3.979e-05/0.7073, allocations: 14.03 kB / 0.6983 GB, free: 1.746 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.895e-05/0.7073, allocations: 20.28 kB / 0.6983 GB, free: 1.727 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002711/0.7101, allocations: 0.8869 MB / 0.6992 GB, free: 0.8203 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003296/0.7134, allocations: 0.7759 MB / 0.7 GB, free: 44 kB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01411/0.7275, allocations: 13.86 MB / 0.7135 GB, free: 1.34 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003478/0.731, allocations: 470.9 kB / 0.7139 GB, free: 0.8789 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002804/0.7313, allocations: 112 kB / 0.714 GB, free: 0.7695 MB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.006825/0.7382, allocations: 2.952 MB / 0.7169 GB, free: 13.81 MB / 0.5606 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.004931/0.7431, allocations: 2.494 MB / 0.7194 GB, free: 11 MB / 0.5606 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.009259/0.7524, allocations: 4.336 MB / 0.7236 GB, free: 6.363 MB / 0.5606 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.238e-05/0.7524, allocations: 8.469 kB / 0.7236 GB, free: 6.355 MB / 0.5606 GB Notification: Performance of matching and sorting (n=282) (initialization_lambda0): time 0.01221/0.7647, allocations: 5.15 MB / 0.7286 GB, free: 1.176 MB / 0.5606 GB Notification: Performance of prepare postOptimizeDAE: time 3.105e-05/0.7647, allocations: 12 kB / 0.7286 GB, free: 1.164 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4e-05/0.7648, allocations: 23.94 kB / 0.7287 GB, free: 1.141 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002159/0.7669, allocations: 0.7938 MB / 0.7294 GB, free: 336 kB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003258/0.7702, allocations: 0.776 MB / 0.7302 GB, free: 15.55 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01409/0.7843, allocations: 13.69 MB / 0.7436 GB, free: 1.02 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003626/0.788, allocations: 447.2 kB / 0.744 GB, free: 0.582 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002766/0.7883, allocations: 112 kB / 0.7441 GB, free: 484 kB / 0.5762 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 97 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (240): * Single equations (assignments): 234 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 6 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 6 systems {(2,6,100.0%), (2,6,100.0%), (2,6,100.0%), (2,6,100.0%), (2,6,100.0%), (2,6,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0006762/0.789, allocations: 323.4 kB / 0.7444 GB, free: 152 kB / 0.5762 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0004107/0.7894, allocations: 122.6 kB / 0.7445 GB, free: 28 kB / 0.5762 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.4301/1.22, allocations: 4.586 MB / 0.749 GB, free: 151.6 MB / 0.5762 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.922e-05/1.22, allocations: 16.09 kB / 0.749 GB, free: 151.6 MB / 0.5762 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.434e-05/1.22, allocations: 12.03 kB / 0.749 GB, free: 151.6 MB / 0.5762 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.969e-05/1.22, allocations: 9.469 kB / 0.749 GB, free: 151.6 MB / 0.5762 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01907/1.239, allocations: 8.306 MB / 0.7572 GB, free: 148.5 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.401e-05/1.239, allocations: 8.531 kB / 0.7572 GB, free: 148.5 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002539/1.241, allocations: 0.5335 MB / 0.7577 GB, free: 148.4 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.002234/1.244, allocations: 0.6988 MB / 0.7584 GB, free: 148.2 MB / 0.5762 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001586/1.244, allocations: 50.66 kB / 0.7584 GB, free: 148.2 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01248/1.256, allocations: 13.32 MB / 0.7714 GB, free: 137.7 MB / 0.5762 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.34e-05/1.256, allocations: 12.44 kB / 0.7714 GB, free: 137.6 MB / 0.5762 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01036/1.267, allocations: 4.282 MB / 0.7756 GB, free: 135.1 MB / 0.5762 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0009202/1.268, allocations: 484.4 kB / 0.7761 GB, free: 134.8 MB / 0.5762 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002483/1.268, allocations: 35.78 kB / 0.7761 GB, free: 134.8 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002335/1.27, allocations: 393.1 kB / 0.7765 GB, free: 134.6 MB / 0.5762 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003812/1.271, allocations: 132.2 kB / 0.7766 GB, free: 134.6 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001235/1.271, allocations: 66.02 kB / 0.7767 GB, free: 134.5 MB / 0.5762 GB Notification: Performance of sorting global known variables: time 0.0009919/1.272, allocations: 0.7775 MB / 0.7774 GB, free: 134.1 MB / 0.5762 GB Notification: Performance of sort global known variables: time 1.212e-06/1.272, allocations: 0 / 0.7774 GB, free: 134.1 MB / 0.5762 GB Notification: Performance of remove unused functions: time 0.004309/1.276, allocations: 1.159 MB / 0.7786 GB, free: 134 MB / 0.5762 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 32 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (107): * Single equations (assignments): 101 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 6 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 6 systems {(2,6,100.0%), (2,6,100.0%), (2,6,100.0%), (2,6,100.0%), (2,6,100.0%), (2,6,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0003552/1.277, allocations: 162.7 kB / 0.7787 GB, free: 133.9 MB / 0.5762 GB Notification: Performance of simCode: created initialization part: time 0.01849/1.295, allocations: 8.738 MB / 0.7873 GB, free: 127.3 MB / 0.5762 GB Notification: Performance of simCode: created event and clocks part: time 1.738e-05/1.295, allocations: 4 kB / 0.7873 GB, free: 127.3 MB / 0.5762 GB Notification: Performance of simCode: created simulation system equations: time 0.005546/1.301, allocations: 2.751 MB / 0.7899 GB, free: 124.5 MB / 0.5762 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001764/1.302, allocations: 195.3 kB / 0.7901 GB, free: 124.3 MB / 0.5762 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01842/1.321, allocations: 7.383 MB / 0.7973 GB, free: 116.9 MB / 0.5762 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001925/1.323, allocations: 2.332 MB / 0.7996 GB, free: 114.5 MB / 0.5762 GB Notification: Performance of simCode: alias equations: time 0.003458/1.326, allocations: 1.295 MB / 0.8009 GB, free: 113.2 MB / 0.5762 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004582/1.327, allocations: 139 kB / 0.801 GB, free: 113.1 MB / 0.5762 GB Notification: Performance of SimCode: time 7.91e-07/1.327, allocations: 0 / 0.801 GB, free: 113.1 MB / 0.5762 GB Notification: Performance of Templates: time 0.04552/1.372, allocations: 32.64 MB / 0.8329 GB, free: 80.64 MB / 0.5762 GB make -j1 -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY.makefile (rm -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY.pipe ; mkfifo IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY.pipe >> ../files/IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY.sim & ./IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerStepDownDY.pipe 2>&1)