Transformer
List of input parameters
name
a custom name
string
-
name
sn_mva*
rated apparent power in MVA
float
> 0
kvas
vn_hv_kv*
rated voltage on high voltage side in kV
float
> 0
kVs
vn_lv_kv*
rated voltage on low voltage side in kV
float
> 0
kVs
vkr_percent*
real part of relative short-circuit voltage in %
float
≥ 0
-
vk_percent*
relative short-circuit voltage in %
float
≥ 0
-
pfe_kw*
iron losses in kW
float
≥ 0
-
i0_percent*
open loop losses in percent of rated current in %"
float
≥ 0
-
shift_degree*
angle shift over the transformer
float
-
vector_group***
Vector group of the transformer; HV side is Uppercase letters and LV side is lower case
string
‘Dyn’,’Yyn’,’Yzn’,’YNyn’
-
vk0_percent***
zero sequence relative short-circuit voltage in %
float
≥ 0
-
vkr0_percent***
real part of zero sequence relative short-circuit voltage in %
float
≥ 0
-
mag0_percent***
zero sequence magnetizing impedance in %
float
≥ 0
-
si0_hv_partial***
distribution of zero sequence leakage impedances for HV sid
float
≥ 0
-
tap_pos
current tap position of the transformer
integer
-
tap_max
maximal allowed tap position
integer
-
tap_min
minimal allowed tap position
integer
-
tap_step_percent
tap step size for voltage magnitude in %
float
≥ 0
-
tap_step_degree
tap step size for voltage angle in degree
float
≥ 0
-
tap_phase_shifter
whether the transformer is an ideal phase shifter
bool
-
*necessary for executing a balanced power flow calculation
***necessary for executing a three phase power flow / single phase short circuit
The exact model and result parameters (for pandapower) are defined in the link below: https://pandapower.readthedocs.io/en/latest/elements/trafo.html
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