Ground

Electrical reference potential.

  • electrical
  • Gradara equations
  • 1 port
BlockGroundKindgroundLibraryElectrical

Description

Fixes the potential of the node it connects to at 0 V. Every electrical circuit needs at least one Ground so its node voltages are defined.

Example

RC and RL transients A 10 V step charges a capacitor through a resistor, and another builds current in an inductor through a conductor.

Step 10 VR 1 kΩC 100 µFCapacitor voltageGroundStep 10 V (RL)G 0.1 SInductor currentL 1 HGround (RL)
In Gradara, select a Ground block and press F1, then choose Open example. It opens as a new model in My models, ready to run.

Also in this example:Voltage sensorCurrent sensorResistorCapacitorInductorConductorStep voltage

Ports

Conserving terminals 1

  • 0 Vpelectrical

    Pin held at 0 V. Takes whatever current the circuit returns to it.

Equations

Modelica
p.v = 0

Implementation

The block’s Modelica model
p.v = 0;

Tips

  • Connect one Ground to each electrically separate circuit, for example to each side of a transformer.

Used in

These larger examples use it too. Open them from Examples in the app.

  • Buck converter · Ideal switches
  • Data center cooling control
  • Motor speed control
  • EV drivetrain
  • 480 VAC → 24 VDC flyback
  • Servo position control

See also

Select a block in Gradara and press F1 to open its page offline.