Mask and Parameters

General tab

SI or pu units:

SI: Specifies the values of the RLC elements, voltage, current or frequency in international units (ohm, henry, farad, volt, ampere and hertz);
pu: Specifies the values of the RLC elements, voltage, current or frequency in pu;

Name	Description	Unit
Starting mode (Slow/Fast)	If “Fast”, the source is immediately activated or deactivated. If “Slow”, when the source is activated, the amplitude of the source increases linearly from zero to the steady-state value. When the source is deactivate, the amplitude of the source decreases linearly from the steady-state value to zero.	-
RLC type	Series (series R, L, C) or parallel (parallel R, L, C)	-
Phase sequence	1 Direct or Inverse (positive or negative): In this mode, a constant differential of 120 degrees is maintained between the phases when the phase angle is changed by entering the value in the field or by adjusting the appropriate hand on the dial. All the fields are reset and all the hands are repositioned to maintain this 120 degrees differential. The only difference between the positive and negative sequences is that in the latter, the signs for phases b and c are inverted. 2 Zero (homopolar): Here, a, b and c are in phase. Their differential is zero. When a field is modified or a dial handle is set, the other two phases automatically take the same value and the same position. 3 Per phase. The “Per phase” mode allows users to define the same angle for the phases selected using a checkmark. The other phases are not involved. If many phases are selected, modifying a field or setting a dial handle for one phase automatically brings the other phases to the same value and position.
Base Power (total)	Base power for three phase	MVA
Base voltage (rmsLN)	Base voltage phase to ground	kV
Base Frequency	Base frequency	Hz
Amplitude (peak)	Peak value of the amplitude for the source voltage in volts (or pu) for each phase	volts (or pu)
Angle	Angle of each phase in degrees. The value of the angles can be modified either by directly entering the numerical values in the appropriate fields or by adjusting the hands on the dial. The input of the angle varies as a function of the sequence selected in the “Source control” section.	degrees
R	Resistance value in ohms	ohms (or pu)
L	Inductance value	henry (or pu)
C	Capacitor value	farad (or pu)

These parameters can be used for the steady-state solution of the network.

Name	Description	Unit
Type	PQ: P and Q specified, V and θ calculated. PV: P and V specified, Q and θ calculated. Swing: V and θ specified, P and Q calculated.
Voltage	Pu voltage, specified for PV-bus and Slack-bus, calculated for PQ-bus.	pu
Angle	Phase angle of voltage, specified for Slack-bus, calculated for PQ-bus and PV-bus.	degrees
Q minimum limit	Minimum reactive power generation limit for PV-bus	Mvar
Q maximum limit	Maximum reactive power generation limit for PV-bus	Mvar
P	Specified generation for PV-bus and Slack-bus, specified load for PQ-bus	Mw
Q	Specified load for PQ-bus, calculated within limits for PV-bus, calculated for Slack-bus.	Mvar

Ports, Inputs, Outputs and Signals Available for Monitoring

Ports

The voltage source has only one network connector (port), since is always referenced to the ground.

Inputs

None

Outputs

None

Sensors

At acquisition, the following signals are made available by the sensors:
• I : Measured current (voltage source) (A).
• VINT : Source voltage signal (V).