The properties for the reactor object are as follows:


Property

Description

phases

Number of phases.

bus1

Name of first bus. Examples: 
bus1=busname
bus1=busname.1.2.3

bus2

Name of 2nd bus. Defaults to all phases connected to first bus, node 0. (Shunt Wye Connection) Not necessary to specify for delta (LL) connection

kv

For 2, 3-phase, kV phase-phase. Otherwise specify actual coil rating.

kvar

Total kvar, all phases. Evenly divided among phases. Only determines X. Specify R separately

conn

={wye | delta |LN |LL} Default is wye, which is equivalent to LN. If Delta, then only one terminal.

Parallel

{Yes | No} Default=No. Indicates whether Rmatrix and Xmatrix are to be considered to be in parallel. This makes a significant difference in harmonic studies. Default is series. For other models, specify R and Rp.

R

Resistance (in series with reactance), each phase, ohms.

Rmatrix

Resistance matrix, lower triangle, ohms at base frequency. Order of the matrix is the number of phases. Mutually exclusive to specifying parameters by kvar or R.

Rp

Resistance in parallel with R and X (the entire branch). Assumed infinite if not specified.

X

Reactance, each phase, ohms at base frequency.

Xmatrix

Reactance matrix, lower triangle, ohms at base frequency. Order of the matrix is the number of phases. Mutually exclusive to specifying parameters by kvar or X.

Z

Alternative way of defining R and X properties. Enter a 2-element array representing R +jX in ohms. Example:

Z=[5 10] ! equivalent to R=5 X=10

Z1

Positive-sequence impedance, ohms, as a 2-element array representing a complex number. Example:

Z1=[1, 2] ! represents 1 + j2

If defined, Z1, Z2, and Z0 are used to define the impedance matrix of the REACTOR. Z1 MUST BE DEFINED TO USE THIS OPTION FOR DEFINING THE MATRIX.

Side Effect: Sets Z2 and Z0 to same values unless they were previously defined.

Z2

Negative-sequence impedance, ohms, as a 2-element array representing a complex number. Example:

Z2=[1, 2] ! represents 1 + j2

Used to define the impedance matrix of the REACTOR if Z1 is also specified.

Note: Z2 defaults to Z1 if it is not specifically defined. If Z2 is not equal to Z1, the impedance matrix is asymmetrical.

Z0

Zero-sequence impedance, ohms, as a 2-element array representing a complex number. Example:

Z0=[3, 4] ! represents 3 + j4

Used to define the impedance matrix of the REACTOR if Z1 is also specified.

Note: Z0 defaults to Z1 if it is not specifically defined.

RCurve

Name of XYCurve object, previously defined, describing per-unit variation of phase resistance, R, vs. frequency. Applies to resistance specified by R or Z property. If actual values are not known, R often increases by approximately the square root of frequency.

LCurve

Name of XYCurve object, previously defined, describing per-unit variation of phase inductance, L=X/w, vs. frequency. Applies to reactance specified by X, LmH, Z, or kvar property.L generally decreases somewhat with frequency above the base frequency, approaching a limit at a few kHz.

LmH

Inductance, mH. Alternate way to define the reactance, X, property


Properties inherited from the circuit element class:


normamps

Normal rated current.

emergamps

Maximum current.

repair

Hours to repair.

faultrate

No. of failures per year.

pctperm

Percent of failures that become permanent.

basefreq

Base Frequency for ratings.

enabled

{Yes|No or True|False} Indicates whether this element is enabled.

like

Make like another object, e.g.: 
New Reactor.R2 like=R1 ...