1 # Copyright (C) 2010 Richard Lincoln
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.
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.
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
17 from CIM14
.IEC61970
.Core
.Equipment
import Equipment
19 class PotentialTransformer(Equipment
):
20 """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.
23 def __init__(self
, ptClass
='', accuracyClass
='', nominalRatio
=0.0, *args
, **kw_args
):
24 """Initialises a new 'PotentialTransformer' instance.
26 @param ptClass: PT classification.
27 @param accuracyClass: PT accuracy classification.
28 @param nominalRatio: Nominal ratio between the primary and secondary voltage.
31 self
.ptClass
= ptClass
33 #: PT accuracy classification.
34 self
.accuracyClass
= accuracyClass
36 #: Nominal ratio between the primary and secondary voltage.
37 self
.nominalRatio
= nominalRatio
39 super(PotentialTransformer
, self
).__init
__(*args
, **kw_args
)
41 _attrs
= ["ptClass", "accuracyClass", "nominalRatio"]
42 _attr_types
= {"ptClass": str, "accuracyClass": str, "nominalRatio": float}
43 _defaults
= {"ptClass": '', "accuracyClass": '', "nominalRatio": 0.0}