Two Winding Transformer

Model of a two winding transformer. It is assumed, that node A is the node with higher voltage.

Attributes, Units and Remarks

Type Model

All impedances and admittances are given with respect to the higher voltage side. As obvious, the parameter can be used in T- as in 𝜋-equivalent circuit representations.

Attribute

Unit

Remarks

id

Human readable identifier

rSc

Ω

Short circuit resistance

xSc

Ω

Short circuit reactance

gM

nS

No load conductance

bM

nS

No load susceptance

sRated

kVA

Rated apparent power

vRatedA

kV

Rated voltage at higher voltage terminal

vRatedB

kV

Rated voltage at lower voltage terminal

dV

%

Voltage magnitude increase per tap position

dPhi

°

Voltage angle increase per tap position

tapSide

true, if tap changer is installed on lower voltage side

tapNeutr

Neutral tap position

tapMin

Minimum tap position

tapMax

Maximum tap position

A list with some standard transformer types can be found here: Standard Two Winding Transformer Types

Entity Model

Attribute

Unit

Remarks

uuid

id

Human readable identifier

operator

operationTime

Timely restriction of operation

nodeA

Higher voltage node

nodeB

Lower voltage node

parallelDevices

overall amount of parallel transformers to automatically
construct (e.g. parallelDevices = 2 will build a total of
two transformers using the specified parameters)

type

tapPos

Current position of the tap changer

autoTap

true, if there is a tap regulation apparent and active

Standard Two Winding Transformer Types

Following there are some standard two winding transformer types with their source. A csv file containing the types listed below can be found here. This file can be used directly for any simulation with simona. The transformers which source is simBench are from here.

uuid

bM

dPhi

dV

gM

id

rSc

sRated

tapMax

tapMin

tapNeutr

tapSide

vRatedA

vRatedB

xSc

source

5a890aae-b9c9-4ebf-8a49-8850ae9df402

219.43184927638458

0.0

1.0

1731.3019390581715

Typ_x_380/220

0.6016666666666666

600000.0

16

-16

0

false

380.0

220.0

44.51926783240413

simBench

03159c0d-126e-47cc-9871-066870df3a3f

1193.4686938790917

0.0

1.0

831.0249307479223

350MVA_380/110

1.0608979591836734

350000.0

16

-16

0

false

380.0

110.0

90.75951402093402

simBench

7cb289cb-e6af-4470-9c68-e5a91978a5e7

2013.800484464662

0.0

1.0

1446.280991735537

300MVA_220/110

0.20704444444444442

300000.0

16

-16

0

false

220.0

110.0

19.358892855688435

simBench

73644bc6-78cf-4882-9837-e6508cab092d

867.7685950413226

0.0

1.5

1157.0247933884295

25 MVA 110/20 kV YNd5

1.9843999999999997

25000.0

9

-9

0

false

110.0

20.0

58.04608993412045

simBench

6935ae26-374a-4c24-aeee-6d5760d6ddf3

720.4791642215993

0.0

1.5

1487.603305785124

40 MVA 110/20 kV YNd5

1.0285

40000.0

9

-9

0

false

110.0

20.0

48.994205909984906

simBench

b49db20f-b8b5-4265-8318-f669b9d121e9

1015.6886939330394

0.0

1.5

1818.181818181818

63 MVA 110/10 kV YNd5

0.6146031746031745

63000.0

9

-9

0

false

110.0

10.0

34.56596500037509

simBench

0843b836-cee4-4a8c-81a4-098400fe91cf

24.495101551166183

0.0

2.5

2999.9999999999995

0.4 MVA 20/0.4 kV Dyn5 ASEA

11.999999999999998

400.0

2

-2

0

false

20.0

0.4

58.787753826796276

simBench

a8f3aeea-ef4d-4f3c-bb07-09a0a86766c1

9.591746452043322

0.0

2.5

1149.9999999999998

0.16 MVA 20/0.4 kV DOTE 160/20 SGB

36.71874999999999

160.0

2

-2

0

false

20.0

0.4

93.01469452961452

simBench

0644c120-a247-425f-bbe4-31b153f7f440

16.583241729259253

0.0

2.5

2199.9999999999995

0.25 MVA 20/0.4 kV Dyn5 ASEA

21.119999999999997

250.0

2

-2

0

false

20.0

0.4

93.6479876986153

simBench

bdf22ee4-deba-41f4-a187-ae00638a6880

36.47380569074435

0.0

2.5

4125.0

0.63 MVA 20/0.4 kV Dyn5 ASEA

6.953892668178382

630.0

2

-2

0

false

20.0

0.4

37.45518044666632

simBench

a0cbd90a-4e9f-47db-8dca-041d3a288f77

145.8952227629774

0.0

2.5

16500.0

0.63 MVA 10/0.4 kV Dyn5 ASEA

1.7384731670445954

630.0

2

-2

0

false

10.0

0.4

9.36379511166658

simBench

Caveats

Nothing - at least not known. If you found something, please contact us!