Ces returns the total effective capacitance of the toploads and secondary, to ground plus infinity. This may be either Ces or Cdc depending on which voltage profile was given to install the secondary. If there is no secondary installed, then Ces and Cdc have the same values.
Note, the primary is considered an external component for this analysis (same as a topload object, ground-plane, etc.). If you need to analyze Ces of the primary, enter the primary values into the secondary inputs.
If the component is the only component in the system, then the result is the self capacitance to infinity of the component.
If the component is a topload object (toroid, sphere, disc, cylinder), then the object must have been installed with connection Topload to be acceptable to compute Ces. If Ground was used to install the topload object, the result will show NaN or 0.
If the component is the secondary, then the returned value will be either Ces or Cdc according to which voltage profile the secondary was installed with.
Secondary Voltage Profile is used to change the voltage profile the program will use during any analysis which computes the secondary capacitance as part of the routine.Loaded is for coils with topload objects installed.
Bare is for bare coils with no topload objects installed.
Linear should be used for short h/d coils where the voltage profile is virtually a straight line.
DC should be selected when looking for DC the value you measure with an LCR meter.
- Ces (topload in-situ) returns the total capacitance of the topload object(s) to ground when in situation with the rest of the system and surroundings.
- Ces (coil to coil) returns the capacitance between the primary and secondary coils.
Events required to run a Capacitance Analysis are:
- Define your surroundings, coils, and topload objects (enter values)
- Select which components to include for analysis
- Select the Secondary Voltage Profile
- Select the Capacitance Analysis type
- Set the detail level
- Click Run Analysis