EE Pro for TI-89, 92 Plus
Analysis - Polyphase Circuits
15
Chapter 4
Polyphase Circuits
This chapter describes Wye and
∆
arrangements in Polyphase Circuits.
Wye
↔
∆
Conversion
Balanced Wye Load
Balanced
∆
Load
4.1 Wye
↔
∆
Conversion
The Wye
↔
∆
Conversion converts three impedances connected in Wye or
∆
form
to its corresponding
∆
or Wye form, i.e., . Wye
↔
∆
or
∆
↔
Wye
Input Fields -
Input Type
:
Selection choices are
∆→
Wye or Wye
→∆
. This
determines whether the next 3 fields (input fields)
accept
∆
or Wye Impedances.
ZZA_
: (
∆
Impedance)
Real or complex number, variable name, or algebraic
expression of defined terms.
ZZB_
: (
∆
Impedance)
Real or complex number, variable name, or algebraic
expression of defined terms.
ZZC_
: (
∆
Impedance)
Real or complex number, variable name, or algebraic
Fig. 4.1 Wye Network
expression of defined terms.
ZZ1_
: (Y Impedance)
Real or complex number, variable name, or algebraic expression of defined terms.
ZZ2_
: (Y Impedance)
Real or complex number, variable name, or algebraic expression of defined terms.
ZZ3_
: (Y Impedance)
Real or complex number, variable name, or algebraic expression of defined terms.
Result Fields
ZZA_
: (
∆
Impedance)
Real or complex number, or algebraic
expression.
ZZB_
: (
∆
Impedance)
Real or complex number, or algebraic
expression.
ZZC_
: (
∆
Impedance)
Real or complex number, or algebraic
expression.
ZZ1_
: (Y Impedance)
Real or complex number, or algebraic
expression.
ZZ2_
: (Y Impedance)
Real or complex number or algebraic
expression.
ZZ3_
: (Y Impedance)
Real or complex number or algebraic
Fig. 4-2
∆
Network
expression.
Z1
Z3
Z2
ZA
ZC
ZB