7/25/2019 Case_3.2 Ef (Star Tcc)

1/1

K02-RP - G

OC1

11kV B/S

ABB

REF615

CT Ratio 2500:1

IEC - Normal Inverse

Pickup = 20 (1 - 100 xCT Sec)

Time Dial = 0.27

3x = 1.7 s, 5x = 1.16 s, 8x = 0.89 s

K03-RP - G

OC1

11kV AX. T/F

ABB

REF615

CT Ratio 150:1

IEC - Normal Inverse

Pickup = 20 (1 - 100 xCT Sec)Time Dial = 0.06

3x = 0.378 s, 5x = 0.257 s, 8x = 0.198 s

TR1-SBEF - G

OC1

20MVA SBEF

ABB

REF615

CT Ratio 1200:1

IEC - Normal Inverse

Pickup = 42 (1 - 100 xCT Sec)

Time Dial = 0.44

3x = 2.77 s, 5x = 1.88 s, 8x = 1.45 s

K09-RP - G

OC1

11kV I/C

ABB

REF615

CT Ratio 1200:1

IEC - Normal Inverse

Pickup = 42 (1 - 100 xCT Sec)Time Dial = 0.35

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

10.5 1 10 100 1K3 5 30 50 300 500 3K 5K

Amps X 10 Bus13 (Nom. kV=11, Plot Ref. kV=11)

10.5 1 10 100 1K3 5 30 50 300 500 3K 5K

Amps X 10 Bus13 (Nom. kV=11, Plot Ref. kV=11)

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:3.2 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: 20MVASBEF,11kVI/C,B/S,AUX.