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CNData#

( Conductor Data, Cable Data )

EPRI’s OpenDSS Documentation for this component: https://opendss.epri.com/CNData.html

#

Name

Type

Default

Units

Description

1

k

integer

2

Number of concentric neutral strands

2

DiaStrand

real

Diameter of a concentric neutral strand; same units as core conductor radius.

3

GMRStrand

real

Geometric mean radius of a concentric neutral strand; same units as core conductor GMR; defaults to \(0.7788 × DiaStrand\).

4

RStrand

real

Ω/[length_unit]

AC resistance of a concentric neutral strand; same units as core conductor resistance.

5

EpsR

real

2.3

Insulation layer relative permittivity.

6

InsLayer

real

Insulation layer thickness; same units as radius. With DiaIns, establishes inner radius for capacitance calculation.

7

DiaIns

real

Diameter over insulation layer; same units as radius. Establishes outer radius for capacitance calculation.

8

DiaCable

real

Diameter over cable; same units as radius.

9

RDC

real

Ω/[length_unit]

CNData.rdc

10

RAC

real

Resistance at 60 Hz per unit length. Defaults to \(1.02 × Rdc\) if not specified.

11

RUnits

string
(from enum. Length Unit)

none

Length units for resistance: ohms per {mi|kft|km|m|Ft|in|cm|mm} Default=none.

12

GMRAC

real

GMR at 60 Hz. Defaults to \(0.7788 × radius\) if not specified.

13

GMRUnits

string
(from enum. Length Unit)

none

Units for GMR.

14

Radius

real

Outside radius of conductor. Defaults to GMR/0.7788 if not specified.

15

RadUnits

string
(from enum. Length Unit)

none

Units for outside radius.

16

NormAmps

real

Normal ampacity, amperes. Defaults to \(EmergAmps / 1.5\) if not specified.

17

EmergAmps

real

Emergency ampacity, amperes. Defaults to \(1.5 × NormAmps\) if not specified.

18

Diam

real

Diameter; Alternative method for entering radius.
Redundant with Radius

19

Seasons

integer

Defines the number of ratings to be defined for the wire, to be used only when defining seasonal ratings using the “Ratings” property.

20

Ratings

array of reals

[-1.0]

An array of ratings to be used when the seasonal ratings flag is True. It can be used to insert
multiple ratings to change during a QSTS simulation to evaluate different ratings in lines.

21

CapRadius

real

Equivalent conductor radius for capacitance calcs. Specify this for bundled conductors. Defaults to same value as radius. Define Diam or Radius property first.

22

Like

string
(CNData name)
deprecated

Make like another object, e.g.:

New Capacitor.C2 like=c1 …