Mho Circle

The Mho Circle component is classified as an 'Impedance Zone Element', which checks whether or not a point described by inputs R and X, lies inside a specified region on the impedance plane. R and X represent the resistive and reactive parts of the monitored impedance, and may be input in per-unit or ohms. Please note however, that the units of the component input parameters should match that of the R and X inputs. The component produces an output '1' if the point defined by R and X is inside the specified region, otherwise the output will be '0'.

Enter Coordinates of the Centre As	Choice		Select (X,Y) or (Z,theta) as the input format for the coordinates of the circle centre.

Radius of the Circle	REAL	Constant	Enter the radius of the mho circle [W].

X Coordinate of the Centre	REAL	Constant	Enter the X (R) coordinate of the mho circle centre point [W]. This parameter is enabled only if Enter Coordinates of the Centre As \| (X,Y) is selected

Y Coordinate of the Centre	REAL	Constant	Enter the Y (X) coordinate of the mho circle centre point [W]. This parameter is enabled only if Enter Coordinates of the Centre As \| (X,Y) is selected

Z Coordinate of the Centre	REAL	Constant	Enter magnitude coordinate (i.e. distance from the origin) for the mho circle centre point [W]. This parameter is enabled only if Enter Coordinates of the Centre As \| (Z,theta) is selected

Theta Coordinate of the Centre	REAL	Constant	Enter angle coordinate (i.e. angle with reference to the X-axis) for the mho circle centre point [rad]. This parameter is enabled only if Enter Coordinates of the Centre As \| (Z,theta) is selected

Mho Circle

Description

Input Parameters