PGDTF,
Aster found the inconsistencies with the transformer core type in the ERCOT GIC file where core types of 4,6,7, and 8 are not valid entries (highlighted in red). Valid core types are noted in the table below.
This item will be discuss at the September 13th PGDTF meeting.
Thanks,
Dylan
From: Aster Amahatsion [mailto:[log in to unmask]]
Sent: Friday, July 27, 2018 10:15 AM
To: Dylan Preas <[log in to unmask]>
Cc: Juricek, Mike <[log in to unmask]>; [log in to unmask]; [log in to unmask]; Zhenhua Wang <[log in to unmask]>
Subject: ERCOT GIC data
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Hi all,
In the ERCOT GIC file the transformer core type for some transformers do not match with the values supported by PSSE. We missed this in our last check.
BUSI |
BUSJ |
BUSK |
VECGRP |
CORE |
KFACTOR |
GRDRI (ohm) |
GRDRJ (ohm) |
GRDRK (ohm) |
TMODEL |
Comment |
120095 |
120091 |
0 |
YNd |
3 |
0 |
0 |
1 |
0 |
0 |
RARF |
120095 |
120092 |
0 |
YNd |
4 |
0 |
0 |
1 |
0 |
0 |
RARF |
120095 |
120093 |
0 |
YNd |
5 |
0 |
0 |
1 |
0 |
0 |
RARF |
120095 |
120094 |
0 |
YNd |
6 |
0 |
0 |
1 |
0 |
0 |
RARF |
140077 |
140071 |
0 |
YNd |
3 |
0 |
0 |
1 |
0 |
0 |
RARF |
140077 |
140072 |
0 |
YNd |
4 |
0 |
0 |
1 |
0 |
0 |
RARF |
140077 |
140073 |
0 |
YNd |
5 |
0 |
0 |
1 |
0 |
0 |
RARF |
140077 |
140074 |
0 |
YNd |
6 |
0 |
0 |
1 |
0 |
0 |
RARF |
140077 |
140075 |
0 |
YNd |
7 |
0 |
0 |
1 |
0 |
0 |
RARF |
140077 |
140076 |
0 |
YNd |
8 |
0 |
0 |
1 |
0 |
0 |
RARF |
Thanks,
ASTER AMAHATSION
|
ENGINEER SR
|
AEP PUBLIC
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