1 # Copyright (C) 2010-2011 Richard Lincoln
3 # Permission is hereby granted, free of charge, to any person obtaining a copy
4 # of this software and associated documentation files (the "Software"), to
5 # deal in the Software without restriction, including without limitation the
6 # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
7 # sell copies of the Software, and to permit persons to whom the Software is
8 # furnished to do so, subject to the following conditions:
10 # The above copyright notice and this permission notice shall be included in
11 # all copies or substantial portions of the Software.
13 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
18 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 from CIM14
.IEC61970
.Core
.Equipment
import Equipment
23 class PotentialTransformer(Equipment
):
24 """Instrument transformer (also known as Voltage Transformer) used to measure electrical qualities of the circuit that is being protected and/or monitored. Typically used as voltage transducer for the purpose of metering, protection, or sometimes auxiliary substation supply. A typical secondary voltage rating would be 120V.
27 def __init__(self
, ptClass
='', accuracyClass
='', nominalRatio
=0.0, *args
, **kw_args
):
28 """Initialises a new 'PotentialTransformer' instance.
30 @param ptClass: PT classification.
31 @param accuracyClass: PT accuracy classification.
32 @param nominalRatio: Nominal ratio between the primary and secondary voltage.
35 self
.ptClass
= ptClass
37 #: PT accuracy classification.
38 self
.accuracyClass
= accuracyClass
40 #: Nominal ratio between the primary and secondary voltage.
41 self
.nominalRatio
= nominalRatio
43 super(PotentialTransformer
, self
).__init
__(*args
, **kw_args
)
45 _attrs
= ["ptClass", "accuracyClass", "nominalRatio"]
46 _attr_types
= {"ptClass": str, "accuracyClass": str, "nominalRatio": float}
47 _defaults
= {"ptClass": '', "accuracyClass": '', "nominalRatio": 0.0}