7/25/2019 CASE1.2 (Star TCC)

1/1

D14-RP - P

OC1

220kV BUS SECTION

ABB

REF615

CT Ratio 3000:1

IEC - Normal Inverse

Pickup = 1.2 (0.3 - 5 xCT Sec)

Time Dial = 0.49

3x = 3.09 s, 5x = 2.1 s, 8x = 1.62 s

D05-RP - P

OC1

120MVA T/F

ABB

REF615

CT Ratio 600:1

IEC - Normal Inverse

Pickup = 0.8 (0.3 - 5 xCT Sec)

Time Dial = 0.31

3x = 1.95 s, 5x = 1.33 s, 8x = 1.02 s

Inst = 6 (0.5 - 35 xCT Sec)

Time Delay = 0.1 s

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

Amps X 100 BB-1A (Nom. kV=220, Plot Ref. kV=220)

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

Amps X 100 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

1K

.01

.1

1

10

100

.03

.05

.3

.5

3

5

30

50

300

500

Seconds

ETAP Star 12.5.0C

N7733- ZAKHER GRID CASE1.2

Project: 220/33/11kV Zakher Grid

Location: Zakher Area of Al Ain

Contract: N7733

Engineer: JM

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

Date: 18-01-2016

SN: LARSENTRN2

Rev: Base

Fault: Phase

Circuit: 120MVA T/F, 220KV B/S