SWS IC 1 OCR - G

OC1

1.908 kA @ 11 kV

t1: 0.295 s

A05 SE44 OCR - G

OC1

Siemens

7SJ62

CT Ratio 600:1

IEC - Normal Inverse

Pickup = 0.2 (0.05 - 4 Sec - 1A)

Time Dial = 0.22

3x = 1.39 s, 5x = 0.942 s, 8x = 0.725 s

Inst = 4 (0.05 - 35 Sec - 1A)

Time Delay = 0.01 s

1.908 kA @ 11 kV

t1: 0.541 s

TR OCR 2 - G

OC1

ABB

REF 610

CT Ratio 100:1

IEC - Normal Inverse

Pickup = 20 (1 - 100 xCT Sec)

Time Dial = 0.05

3x = 0.315 s, 5x = 0.214 s, 8x = 0.165 s

Inst = 200 (5 - 400 xCT Sec)

Time Delay = 0.05 s

1.908 kA @ 11 kV

t1: 0.05 s

SWS B/C OCR - G

OC1

ABB

REF 610

CT Ratio 600:1

IEC - Normal Inverse

Pickup = 20 (1 - 100 xCT Sec)

Time Dial = 0.12

3x = 0.756 s, 5x = 0.514 s, 8x = 0.396 s

1.908 kA @ 11 kV

t1: 0.295 s

Normalized (shifted) TCC

Line-to-Ground (Sym) fault: 1.908kA @ 11kV

Adj Bus: NMC hospital SWS bus B

Connector: CT10 - T3

SQOP File: 11 KV 1 PH FAULT CURVE

Data Rev: Base

Configuration: Normal

Date: 02-11-2015

100.005 .01 .1 1 10.03 .05 .3 .5 3 5 30 50

Per Unit

100.005 .01 .1 1 10.03 .05 .3 .5 3 5 30 50

Per Unit

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 7.0.0

Star2

Project: NMC specialty

Location: abu dhabi

Contract:

Engineer:

Filename: C:\ETAP 700\NMC speciality hospital\NMC speciality hospital.OTI

Date: 02-11-2015

SN: 12345678

Rev: Base

Fault: Ground(Normalized)

R SWS IC 1 OCR

I> A05 SE44 OCR

SWS IC 1 OCR

A05 SE44 OCR

±

R TR OCR 2

T3

1.5 MVA

R SWS B/C OCR

T3

1.5 MVA

SWS B/C OCR

TR OCR 2