Selecting components

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Selecting components


Components are selected from the Selection menu (right click in open circuit area) or Sidebar/Selection tree. After selection the component appears in the circuit window enclosed by a lime rectangle. Left-click inside this rectangle to move the component to desired position. Right-click to open the context menu to rotate/flip.



Selection menu (left). Sidebar/Selection (right).



The Component selection menu provides options for creating and inserting new components into the circuit window. This menu is normally hidden. To show and activate the menu, click the right mouse button in an empty circuit window space. Following a selection in one of the floating sub-menus, the selected object will be drawn where you clicked the mouse button in the active circuit window enclosed by a rectangle. You can move (left mouse click and drag), rotate (right mouse button) or place the object (click on open space).


The Component selection menu has several sub-menus; each of them include circuit object of similar characteristics as briefly described below:


Probes & 3-phase

Probes for node voltage-, branch voltage, current-, TACS, and Models output monitoring

Various 3-phase transposition objects

Splitter (coupling between 3-phase and single-phase circuits) and Collector.

ABC/DEF Reference objects for specifying the master node for phase sequence



Branch linear: multi-phase and 3-phase non-coupled components. RLC.

Branch nonlinear: multi-phase nonlinear R and L components, MOV. Type-93, 96 and 98 nonlinear inductors including initial conditions for the flux linkage.

TACS controlled and time dependent resistor, inductor and capacitor.



Lumped, PI-equivalents (type 1, 2...) and RL coupled components (type 51, 52...)

Distributed lines of constant, frequency independent parameters. Transposed (Clarke) up to 9-phases, untransposed 2 or 3-phase (KCLee) line models.

LCC, the user can select 1-9 phase models of lines/cables. In the input menu of these components, the user can specify a LINE CONSTANT or CABLE PARAMETER data case. The resulting include file contains the electrical model and the LIB-file is generated automatically if the ATP setup is correct. Bergeron (KCLee/Clarke), nominal PI, JMarti, Semlyen and Noda models are supported. Templates, Sections and EGM.

Read PCH-file. This is a module in ATPDraw to read the punch-files from Line Constants, Cable Constants or Cable Parameters and to create an ATPDraw object automatically (sup-file and lib-file). ATPDraw recognizes: PI-equivalents, KCLee, Clarke, Semlyen, and JMarti line formats.



Time and voltage controlled. 3-phase time-controlled switch

Diode, thyristor, triac

Simple TACS controlled switch

Measuring switch

Statistic and systematic switches



AC and DC sources, 3-phase AC source. Ungrounded AC and DC sources.

Ramp sources

Surge sources

TACS controlled sources, AC modulated.



Type 59/58 synchronous machine, Type 56 induction.

Universal machines (type 1, 3, 4, 6, and 8)

Windsyn components



Single phase and 3-phase ideal transformer

Single phase saturable transformer

3-phase, two- or three-winding saturable transformer

BCTRAN. Automatic generation of .pch file. 1-3 phases, 2-3 windings. Auto-transformers, Y-, and D- connections with all possible phase shifts. External nonlinear magnetizing inductance(s) supported.

Hybrid Transformer (XFMR). Advanced topologically correct transformer with Test Report, Design data or Typical value input. 3-phase, 2-4 windings, Auto, Y, D and zigzag coupling.



Under MODELS the user can either select a default model and write/update the script internally, or select an existing external model component by specifying a sup-file or a mod-file.

Only input, output, data and variables declared in front of TIMESTEP, INTERPOLATION, DELAY, HISTORY, INIT and EXEC are recognized by ATPDraw when interpreting the model script and converting this to a component.

Type 94: General, multi-phase type 94 component. Specify the type; THEV, ITER, NORT, NORT-TR and the number of phases. Specify a mod-file describing the Type-94 models component (templates available). The same rules as specified under MODELS apply.



Coupling to Circuit. Input to TACS from the circuit must be connected to this object.

4 types of TACS sources: DC, AC, Pulse, Ramp.

Transfer functions: General Laplace transfer function. If the Limits are not specified or connected, no limits apply. First order dynamic icon with limits. Simple Integral, Derivative, first order Low and High Pass transfer functions.

TACS devices. Type 50-66.

Initial condition for TACS objects (Type-77)

Fortran statements: General Fortran statement (single line expression). Simplified Math statements or Logical operators.



User specified

Library: $Include is used to include the lib-file into the ATP input file. The user must keep track of internal node names in the include file.

Additional: Free format user specified text for insert in the ATP file. Selection of location.

Single and 3-phase reference: These objects are not represented in the ATP input data file and serve only as visualization of connectivity.

Files: Select a support file (sup). Import a lib-file (Data Base Module format) via the Edit menu. $Include is used to include the user specified lib-file into the ATP input file and pass node names and data variables as parameters.


Steady-state components

RLC Phasor component only present at steady state

Harmonic source for Harmonic Frequency Scan studies

Single and 3-phase frequency dependent loads in CIGRÉ format

Single phase RLC element with frequency dependent parameters

Load flow components PQ, UP, TQ


Power system tools

3-phase basic components LINE3, BUS3, LOADPQ, CTRLCB

Phasor, RX and power calculators

Filters, RMS, Phase-locked-loops

Protective relays components

TACS block for RMS, 012, PQ0, AB conversion.


All standard comp…

Complete list of standard components in alphabetical order sorted by support file names.



User defined folder structure containing project files (.acp) for import.