7/25/2019 CASE_1.2-EF (Star TCC).pdf

1/1

D14-RP - G

OC1

220kV B/S

ABBREF615

CT Ratio 3000:1

IEC - Normal Inverse

Pickup = 20 (1 - 100 xCT Sec)

Time Dial = 0.35

3x = 2.21 s, 5x = 1.5 s, 8x = 1.15 s

D05-RP - G

OC1

120MVA T/F

ABB

REF615

CT Ratio 600:1

IEC - Normal Inverse

Pickup = 20 (1 - 100 xCT Sec)

Time Dial = 0.25

3x = 1.58 s, 5x = 1.07 s, 8x = 0.824 s

1.5 1 10 100 1K3 5 30 50 300 500 3K 5K

Amps X 10 BB-1A (Nom. kV=220, Plot Ref. kV=220)

1.5 1 10 100 1K3 5 30 50 300 500 3K 5K

Amps X 10 BB-1A (Nom. kV=220, Plot Ref. kV=220)

1K

.01

.1

1

10

100

.03

.05

.3

.5

3

5

30

50

300

500

Seconds

ETAP Star 12.5.0C

N7733-ZAKHER CASE:1.2-EF

Project: 220/33/11kV Zakher Grid

Location: Zakher Area of Al Ain

Contract: N7733

Engineer: JM

Filename: C:\ETAP 1250\N7733\N7733.OTI

Date: 21-01-2016

SN: LARSENTRN2

Rev: Base

Fault : Ground

Circuit: 220kVB/S, 120MVA T/F