A Shunt Reactor is not yet included in the list of ETAP elements in its Edit Toolbar as of its latest version (ETAP 11). Nonetheless, it doesn’t mean that we can’t model a shunt reactor in our one-line diagram and simulation. Modeling a shunt reactor in ETAP is easy using a simple technique.
The aim of this tutorial is to describe the procedures on how to create a shunt reactor in ETAP using a static load.
4. Go to the Loading Tab and input the necessary values, which include kV, MVA and PF. ETAP will automatically calculate the MW, Mvar and Amperes.
|ETAP Static Load Editor|
The static load ratings are based from the shunt reactor parameters using the following equations:
Shunt Reactor Parameters
kVR = Reactor Rated Voltage in kV
XR = Reactor Reactance in Ohms
Q = Reactor Quality Factor (X/R)
Static Load Ratings
kVSL = kVR
MVASL = (kVR)2 / XR
kVSL = kVR = 4.16 kV
MVASL = (kVR)2 / XR = (4.16)2 / 5
MVASL = 3.46 MVA
PFSL = cos(arctan(Q)) = cos(arctan(20))
PFSL = 5%
5. Select appropriate grounding connection.
6. Click OK.
In this post, modeling a shunt reactor in ETAP was explained using a static load with a rated
power factor determined from the reactor Quality factor.