CIM14/IEC61968/WiresExt/DistributionTransformerWinding.py

   1 # Copyright (C) 2010 Richard Lincoln
   2 #
   3 # This library is free software; you can redistribute it and/or
   4 # modify it under the terms of the GNU Lesser General Public
   5 # License as published by the Free Software Foundation; either
   6 # version 2.1 of the License, or (at your option) any later version.
   7 #
   8 # This library is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11 # Lesser General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU Lesser General Public
  14 # License along with this library; if not, write to the Free Software
  15 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA, USA
  16
  17 from CIM14.IEC61970.Core.ConductingEquipment import ConductingEquipment
  18
  19 class DistributionTransformerWinding(ConductingEquipment):
  20     """Conducting connection point of a distribution / unbalanced transformer winding instance. This class differs from Wires::TransformerWinding as follows: - the eight Pi model attributes are moved into separate class, that can be optionally referred to from several winding instances. - the three grounding attributes can differ per winding instance, even for windings that use the same TransformerInfo, so they are kept on DistributionTransformerWinding. - 'windingType' attribute is replaced by 'sequenceNumber' attribute on WindingInfo class. - all the other attributes come from the WindingInfo (and its relationships). TransformerInfo is associated to the DistributionTransformer as referenceable data, so it can be defined once and referred to from instances, instead of being specified with each instance.
  21     """
  22
  23     def __init__(self, grounded=False, xground=0.0, rground=0.0, Transformer=None, WindingInfo=None, RatioTapChanger=None, PiImpedance=None, PhaseTapChanger=None, *args, **kw_args):
  24         """Initialises a new 'DistributionTransformerWinding' instance.
  25
  26         @param grounded: (for Yn and Zn connections) True if the neutral is solidly grounded.
  27         @param xground: (for Yn and Zn connections) Reactive part of neutral impedance where 'grounded' is true.
  28         @param rground: (for Yn and Zn connections) Resistance part of neutral impedance where 'grounded' is true.
  29         @param Transformer: Transformer this winding belongs to.
  30         @param WindingInfo: Data for this winding.
  31         @param RatioTapChanger: Ratio tap changer associated with this winding.
  32         @param PiImpedance: (accurate for 2- or 3-winding transformers only) Pi-model impedances of this winding.
  33         @param PhaseTapChanger: Phase tap changer associated with this winding.
  34         """
  35         #: (for Yn and Zn connections) True if the neutral is solidly grounded.
  36         self.grounded = grounded
  37
  38         #: (for Yn and Zn connections) Reactive part of neutral impedance where 'grounded' is true.
  39         self.xground = xground
  40
  41         #: (for Yn and Zn connections) Resistance part of neutral impedance where 'grounded' is true.
  42         self.rground = rground
  43
  44         self._Transformer = None
  45         self.Transformer = Transformer
  46
  47         self._WindingInfo = None
  48         self.WindingInfo = WindingInfo
  49
  50         self._RatioTapChanger = None
  51         self.RatioTapChanger = RatioTapChanger
  52
  53         self._PiImpedance = None
  54         self.PiImpedance = PiImpedance
  55
  56         self._PhaseTapChanger = None
  57         self.PhaseTapChanger = PhaseTapChanger
  58
  59         super(DistributionTransformerWinding, self).__init__(*args, **kw_args)
  60
  61     _attrs = ["grounded", "xground", "rground"]
  62     _attr_types = {"grounded": bool, "xground": float, "rground": float}
  63     _defaults = {"grounded": False, "xground": 0.0, "rground": 0.0}
  64     _enums = {}
  65     _refs = ["Transformer", "WindingInfo", "RatioTapChanger", "PiImpedance", "PhaseTapChanger"]
  66     _many_refs = []
  67
  68     def getTransformer(self):
  69         """Transformer this winding belongs to.
  70         """
  71         return self._Transformer
  72
  73     def setTransformer(self, value):
  74         if self._Transformer is not None:
  75             filtered = [x for x in self.Transformer.Windings if x != self]
  76             self._Transformer._Windings = filtered
  77
  78         self._Transformer = value
  79         if self._Transformer is not None:
  80             self._Transformer._Windings.append(self)
  81
  82     Transformer = property(getTransformer, setTransformer)
  83
  84     def getWindingInfo(self):
  85         """Data for this winding.
  86         """
  87         return self._WindingInfo
  88
  89     def setWindingInfo(self, value):
  90         if self._WindingInfo is not None:
  91             filtered = [x for x in self.WindingInfo.Windings if x != self]
  92             self._WindingInfo._Windings = filtered
  93
  94         self._WindingInfo = value
  95         if self._WindingInfo is not None:
  96             self._WindingInfo._Windings.append(self)
  97
  98     WindingInfo = property(getWindingInfo, setWindingInfo)
  99
 100     def getRatioTapChanger(self):
 101         """Ratio tap changer associated with this winding.
 102         """
 103         return self._RatioTapChanger
 104
 105     def setRatioTapChanger(self, value):
 106         if self._RatioTapChanger is not None:
 107             self._RatioTapChanger._Winding = None
 108
 109         self._RatioTapChanger = value
 110         if self._RatioTapChanger is not None:
 111             self._RatioTapChanger._Winding = self
 112
 113     RatioTapChanger = property(getRatioTapChanger, setRatioTapChanger)
 114
 115     def getPiImpedance(self):
 116         """(accurate for 2- or 3-winding transformers only) Pi-model impedances of this winding.
 117         """
 118         return self._PiImpedance
 119
 120     def setPiImpedance(self, value):
 121         if self._PiImpedance is not None:
 122             filtered = [x for x in self.PiImpedance.Windings if x != self]
 123             self._PiImpedance._Windings = filtered
 124
 125         self._PiImpedance = value
 126         if self._PiImpedance is not None:
 127             self._PiImpedance._Windings.append(self)
 128
 129     PiImpedance = property(getPiImpedance, setPiImpedance)
 130
 131     def getPhaseTapChanger(self):
 132         """Phase tap changer associated with this winding.
 133         """
 134         return self._PhaseTapChanger
 135
 136     def setPhaseTapChanger(self, value):
 137         if self._PhaseTapChanger is not None:
 138             self._PhaseTapChanger._Winding = None
 139
 140         self._PhaseTapChanger = value
 141         if self._PhaseTapChanger is not None:
 142             self._PhaseTapChanger._Winding = self
 143
 144     PhaseTapChanger = property(getPhaseTapChanger, setPhaseTapChanger)
 145