sketch 022 tripping matrix

AMAL POWER STATION

TYPICAL GTG TRIPPING MATRIX

A 9/1/2008 JSL Issued for Tender

0 6/1/2008 JSL Issued for Comments

REV DATE DESCRIPTION REF IND SIGN

PDO APPROVAL

PROJECT DRAWING REVISION

AREA : Alam

SUB AREA : Amal Power Station

DRAWING IDENTIFICATION

DRWG. TYPE : TYPICAL DRWG AREA ENG. SERIAL SHEET PROJ. DWG. REV.

TYPICAL GTG TRIPPING MATRIX CODE SECT. NUMBER No. CODE SIZE

DRAWNBY

CHECKEDBY

APPROVEDBY

PETROLEUM DEVELOPMENT OMAN

No. Sketch 022

Amal Power Station GAS TURBINE AND GAS TURBINE GENERATOR TRIP LOGIC DIAGRAM Page 01 of 04

CAUSE

1 · · · · · · 87G Generator Differential Operated 1

2 · · · · · · 59N1 2

3 · · · · · · 51N 3

4 64R 4

5 · · · · · · 64R 5

6 26 6

7 · · · · · · 26 7

8 · · · · · · 59GN1 8

9 · · · · · 5 Emergency stop push button operated 9

10 · · · · 40G 10

11 · · · · 27/40 11

12 46G 12

13 · · · · 46G 13

14 14

15 · 49G 15

16 · · · · 49G 16

17 · · · · 78G Pole slipping relay operated 17

18 99G Over fluxing protection relay stage-1 operated 18

19 · · · · 99G Over fluxing protection relay stage-2 operated 19

20 · · · · 96GDead machine protection operated

20

21 21

22 · · · · 27G 22

23 81.1G Under frequency relay stage-1 operated 23

24 · · · · 81.2G Under frequency relay stage-2 operated 24

25 59.1G Generator over voltage relay stage1 operated 25

26 · · · · 59.2G Generator over voltage relay stage2 operated 26

27 · · · · 32R1 Reverse power relay stage-1 operated 27

28 · · · · 32R2 Reverse power relay stage-2 operated 28

EFFEC

T

A B C D

Gas

Turb

ine t

rip

Gas

Turb

ine S

hurd

ow

n w

ith U

nlo

ad

Exci

ter

field

bre

ake

r tr

ipp

ed

Rele

ase

of

CO

2 in

to G

en

era

tor

en

closu

re

Rele

ase

of

CO

2 in

to G

T e

ncl

osu

re

13

2kV

Bre

ake

r A

11

0/7

31

0 8

6H

tri

pp

ed

13

2kV

Bre

ake

r A

11

0/A

71

0 8

6E

tri

pp

ed

13

2kV

Bre

ake

r A

12

0/A

72

0 8

6H

tri

pp

ed

13

2kV

Bre

ake

r A

12

0/A

72

0 8

6E

tri

pp

ed

13

2kV

bu

s zo

ne t

rip

Blo

ck G

en

era

tor

syn

ch

Red

uce

Exci

tati

on

com

man

d t

o A

VR

pro

mp

t op

era

tor

for

load

man

ag

em

en

t

Ala

rm/I

nd

icati

on

Class of Shutdown MASTER TRIP RELAYS MAJOR EQUIPMENT TRIPS ALARM/CONTROL EFFECTS

LEGEND FOR Class of Shutdown

A Shut down : Trip GCB, Trip Excitation, GT Running C Shut down : Trip GCB, Trip Excitation, Trip GT via MARK-VI ( GT Shuts down)

B D Shut down : Trip GCB, Trip Excitation, Trip GT via MARK-VI ( GT Shuts down), Trip 132kV Circuit Breaker(s), Trip 6.6kV incomer

Generator stator earth fault relay operated ( 0 to 95%)

Generator stator earth fault current relay operated

Generator rotor earth fault relay first stage operated( <80kohm)

Generator rotor earth fault relay second stage operated( <5kohm)

Generator Fire Detector temperature high Stage 1 ( 80deg C)

Generator Fire detector temperature high Stage 2 ( 100deg C)

Generator stator earth fault protection operated ( 95 to 100%)

Loss of excitation relay operated together with 27/40 rly oprtd and prot PT fuse healthy

40G relay operated together with 27/40 rly not oprtd, prot PT fuse healthy and with time delay

Negative sequence current relay stage-1 operated

Negative sequence current relay stage-2 operated

Over load relay ( thermal replica type) stage-1 operated

Over load relay ( thermal replica type) stage-2 operated

Under voltage relay operated together with PT fuse healthy - Stage 2

Mast

er

Tri

p r

ela

ys

86

U1

an

d 8

6U

2Tri

p G

CB

, E

xci

tati

on

, an

d G

as

Tu

rbin

eLo

cal R

ese

t O

nly

Mast

er

Tri

p R

ela

ys

86

G2

an

d 8

6G

3

Tri

p G

CB

an

d E

xci

tati

on

Loca

l R

ese

t O

nly

Mast

er

Tri

p R

ela

ys

86

G3

an

d 8

6G

4Tri

p G

CB

an

d E

xci

tati

on

Loca

l an

d R

om

te R

ese

t

Gen

era

tor

CB

D5

70

/D3

70

tri

pp

ed

( T

rip

co

il-1

op

r.)

Gen

era

tor

CB

D5

70

/D3

70

tri

pp

ed

( T

rip

co

il-2

op

r.)

6.6

kV M

VU

AS

-3 in

com

er

trip

ped

(

E1

80

/E2

80

)

AV

R R

eg

ula

tion

Ch

an

geover

from

AU

TO

-1

to A

UTO

-2

AV

R R

eg

ula

tion

Ch

an

geover

from

AU

TO

-2

to A

UTO

-1

Shut down : Unload GT, Trip GCB, Trip Excitation, Trip GT via MARK-VI ( GT Shuts down)


CAUSE

29 29

30 30

31 31

32 32

33 33

34 · · · · · · Gas Turbine trip 34

35 · · · · · 50LBB 35

36 · · · · 21GT 36

37 51.1G Over current protection relay operated 37

38 · · · · · · · · · · · 59N2 11kV bus earth fault relay operated 38

39 60.2G AVR PT1 fuse failure 39

40 60.4G AVR PT2 fuse failure 40

41 60.5G Metering PT fuse failure 41

41A 58 Excitor Diode Failure (Open ckt) 41A

41B 58 Excitor Diode Failure (Short ckt) 41B

42 60.1G Protection PT1 fuse failure 42

43 60.3G Protection PT2 fuse failure 43

44 FFR 44

45 · · · · · · · 87GT 45

46 · · · · · · · 64R(gt) 46

47 · · · · · · · 51SBEF 47

48 · · · · · · 67N 48

49 · · · · · · · 21 G 49

50 · · · · · 59/81 50

51A · · · · · · · 50BF1 51A

51B · · · · · · · 50BF2 51B

52 52

53A 53A

53B · · · · · 53B

54 · · · · · 87T MVUAT diff. Protection operated 54

55 · · · · · 64R(LV) MVUAT LV REF Protection operated 55

56 · · · · · 56

57A MVUAT 49(OT)T, 49(WT)T 57A

57B · · · · · MVUAT 63(B)T, 63(TCB)T, 63PRV(T) 57B

58 58

59 86T 59

59A · · · · · · IPS trip 59A

EFFEC

T

A B C D

Gas

Turb

ine t

rip

Gas

Turb

ine S

hurd

ow

n w

ith U

nlo

ad

Exci

tor

field

bre

aker

trip

ped

Rele

ase

of

CO

2 into

Genera

tor

Rele

ase

of

CO

2 into

Gt

Encl

osu

re

132kV

Bre

aker

A11

0/7

310 8

6H

tri

pped

132kV

Bre

aker

A110/A

710 8

6E t

rip

ped

132kV

Bre

aker

A120/A

720

86H

tri

pped

132kV

Bre

aker

A120/A

720 8

6E t

rip

ped

132kV

bus

zone t

rip

Blo

ck G

nera

tor

synch

Reduce

Exci

tati

on c

om

mand t

o A

VR

Pro

mt

opera

tor

for

load m

anagem

ent

Ala

rm/Inic

ati

on

Class of Shutdown MASTER TRIP RELAYS MAJOR EQUIPMENT TRIPS


A Shut down : Trip GCB, Trip Excitation, GT Runnin C Shut down : Trip GCB, Trip Excitation, Trip GT via MARK-VI ( GT Shuts down)


Generator Circuit Breaker fail protection operated

Generator Backup impedance relay operated togather with PT fuse healthy

( 132kv side)

Synchronisation PT fuse failure (Both generator side and step-up

transformer side of generator circuit breaker)

Generator transformer differential relay operated

Generator transformer REF protection operated

Generator transformer backup earth fault protection operated

GTX directional earth fault relay operated ( 132kv side)

Generator backup impedance prot. Operated ( 11kV Side)

Generator transformer overfluxing protection operated ( 132kV side)

132kV Bus Circuit Breaker Fail (A510/A310)

132kV Tie Circuit Breaker Fail (A520/A320)

Generator transformerGTX 49(OT)A, 49(WT)A, 63(B)A, 63(TCB)A, 71(LO)A - Stage 1

Generator transformer GTX 49(OT)T, 49(WT)T - Stage 2

Generator transformer 63(B)T, 63(TCB)T, 63(PR)T - Stage 2

50, 51, 51N

MVUAT Non direct. O/C, E/F protection operated

MVUAT 49(OT)A, 49(WT)A, 63(B)A, 63(TCB)A, 71(LO)A

6.6kV MVUAS switchboard incomer master trip relay operated

Mast

er

Tri

p r

ela

ys

86U

1and 8

6U

2Tri

p G

CB

, Exc

itati

on, and G

as

Turb

ine

Loca

l R

ese

t O

nly

Mast

er

Tri

p R

ela

ys

86G

2 a

nd 8

6G

3

Tri

p G

CB

and E

xci

tati

on

Loca

l R

ese

t O

nly

Mast

er

Tri

p R

ela

ys

86G

3 a

nd 8

6G

4Tri

p G

CB

and E

xci

tati

on

Loca

l and R

om

te R

ese

t

Genera

tor

CB

D570/D

370 t

rip

ped (

Tri

p c

oil-

1 o

pr.

)

Genera

tor

CB

D570/D

370 t

rip

ped (

Tri

p c

oil-

2 o

pr.

)

6.6

kV M

VU

AS-3

inco

mer

trip

ped

(E180/E

280)

AV

R R

egula

tion C

hangeover

from

AU

TO

-1 t

o

AU

TO

-2

AV

R R

egula

tion C

hangeover

from

AU

TO

-2 t

o

AU

TO

-1



CAUSE

60 · · · · · R5E 60

61 · · · · · L94FX4 61

62 · · · · · L94FX3 62

63 · · · · · L94FX2 63

64 · · · · · L94FX1 64

65 · · · · · L86TXT 65

66 · · · · · L86TFB 66

67 · · · · · L86FPG2LT Post-ignition P2 low trip 67

68 · · · · · L86FPG2HT Post-ignition P2 high trip 68

69 · · · · · L63QTX 69

70 · · · · · L63ETH 70

71 · · · · · L63CSHH 71

72 · · · · · L5E 72

73 · · · · · L4IGVT 73

74 · · · · · L4GFIVPT 74

75 · · · · · L4DLNT 75

76 · · · · · L4CT Common BOP IPS trip 76

77 · · · · · L12H 77

78 · · · · · L3SFLT Control system fault trip 78

79 · · · · · L39VT High vibration trip 79

80 · · · · · L30SPT 80

81 · · · · · L2SFT 81

82 · · · · · L28FDT Loss of flame trip 82

83 · · · · · L26QT 83

84 · · · · · L12H 84

EFFEC

T

A B C D

Gas

Tu

rbin

e t

rip

Gas

Tu

rbin

e S

hu

rdow

n w

ith

Un

load

Exci

tor

field

bre

ake

r tr

ipped

Rele

ase

of

CO

2 into

Genera

tor

Rele

ase

of

CO

2 into

Gt

Encl

osu

re

132kV

Bre

ake

r A

110/7

310 8

6H

tri

pped

132kV

Bre

ake

r A

110/A

710 8

6E t

ripped

132kV

Bre

ake

r A

120/A

720 8

6H

tri

pped

132kV

Bre

ake

r A

120/A

720 8

6E t

ripped

132kV

bus

zone t

rip

6.6

kV M

VU

AS-3

inco

mer

trip

ped

Blo

ck G

nera

tor

synch

Reduce

Exci

tati

on c

om

mand t

o A

VR

Pro

mt

opera

tor

for

load m

anagem

ent

Ala

rm/Inic

ati

on





Emergency remote manual trip-MKVI panel

Failure to leave premix transfer-trip

Fail to reignite prim in sec-L.R.trip

Failure to reignite primary zone-trip

Failure to leave secondary XFER-trip

Exhaust over temperature trip

Exhaust thermocouples open trip

Turbine lube oil header press low trip

Exhaust duct pressure high trip

Inlet filter very high pressure drop -trip

Emergency manual trip-MKVI panel

Inlet guide vane control fault trip

P2 supply pressure too low trip

Dry low nox system trouble-trip

prot module speed sgnl loss (Decel Det)

High exhaust temperature spread trip

Start up fuel flow excessive trip

Lube oil header temperature high high trip

Electrical overspeed trip-HP

Mast

er

Tri

p r

ela

ys

86

U1

an

d 8

6U

2Tri

p G

CB

, E

xci

tati

on

, an

d G

as

Tu

rbin

eLo

cal R

ese

t O

nly

Mast

er

Tri

p R

ela

ys

86

G2

an

d 8

6G

3

Tri

p G

CB

an

d E

xci

tati

on

Loca

l R

ese

t O

nly

Mast

er

Tri

p R

ela

ys

86

G3

an

d 8

6G

4Tri

p G

CB

an

d E

xci

tati

on

Loca

l an

d R

om

te R

ese

t

Gen

era

tor

CB

D5

70

/D3

70

tri

pp

ed

( T

rip

coil-

1 o

pr.

)

Gen

era

tor

CB

D5

70

/D3

70

tri

pp

ed

( T

rip

coil-

2 o

pr.

)

AV

R R

eg

ula

tion

Ch

an

geover

from

AU

TO

-1 t

o

AU

TO

-2

AV

R R

eg

ula

tion

Ch

an

geover

from

AU

TO

-2 t

o

AU

TO

-1



CAUSE

85 · · · · · · L45HT1 85

86 · · · · · · L30LTA 86

87 · · · · · L12HF Control speed signal loss-HP 87

88 · · · · · LCPRERR 88

89 · · · · · L86GCVT G1 GCV not following ref.trip 89

90 · · · · · L86GCVST G2 GCV not following ref.trip 90

91 · · · · · L86GCV3T G3 GCV not following ref. trip 91

92 · · · · · L86CBT 92

93 · · · · · · L86BTX 93

94 · · · · · L60BOG 94

95 · · · · · · · L45FT1 Unit fire protection operated 95

96 · · · · · · · L45FPX Unit fire protection operated 96

97 · · · · · L3GRVT 97

98 · · · · · L3FTGLT 98

99 · · · · · · L39VSD High vibration shutdown 99

100 · · · · · L26QT2 100

101 · · · · · L12HFD Protective speed signal trouble 101

102 · · · · · · L12HFD Control speed signal trouble 102

102 · · · · · · · Software "Stop" Button 102

EFFEC

T

A B C D

Gas

Turb

ine t

rip

Gas

Turb

ine S

hurd

ow

n w

ith U

nlo

ad

Genera

tor

CB

D570/D

370 t

ripped (

Tri

p c

oil-

1 o

pr.

)

Genera

tor

CB

D570/D

370 t

ripped (

Tri

p c

oil-

2 o

pr.

)

Exci

tor

field

bre

ake

r tr

ipped

Rele

ase

of

CO

2 into

Genera

tor

Rele

ase

of

CO

2 into

Gt

Encl

osu

re

132kV

Bre

aker

A110/7

310 8

6H

tri

pped

132kV

Bre

aker

A110/A

710 8

6E t

ripped

132kV

Bre

aker

A120/A

720 8

6H

tri

pped

132kV

Bre

aker

A120/A

720 8

6E t

ripped

132kV

bus

zone t

rip

6.6

kV

MV

UA

S-3

inco

mer

trip

ped

Blo

ck G

nera

tor

synch

Reduce

Exci

tati

on c

om

mand t

o A

VR

Pro

mt

opera

tor

for

load m

anagem

ent

Ala

rm/Inic

ati

on





Haz.Gas detected in turb.compartment

Load tunnel temp high-auto unloading

comp op limit protection max control error

Cool & seal air compt.bleed valve open pos trbl

Heat vent loss of turb.compt.vent - fast shut

down

Turbine startup bogged down-trip

Stop/speed ratio valve not tracking trip

Gas fuel temperature too low-trip

Lube oil header temperature high high-LTTH

Mast

er

Tri

p r

ela

ys

86

U1

an

d 8

6U

2Tri

p G

CB

, E

xci

tati

on

, an

d G

as

Tu

rbin

eLo

cal R

ese

t O

nly

Mast

er

Tri

p R

ela

ys

86

G2

an

d 8

6G

3

Tri

p G

CB

an

d E

xci

tati

on

Loca

l R

ese

t O

nly

Mast

er

Tri

p R

ela

ys

86

G3

an

d 8

6G

4Tri

p G

CB

an

d E

xci

tati

on

Loca

l an

d R

om

te R

ese

t

AV

R R

eg

ula

tion

Ch

an

geover

from

AU

TO

-1 t

o A

UTO

-2

AV

R R

eg

ula

tion

Ch

an

geover

from

AU

TO

-2 t

o A

UTO

-1


sketch 022 tripping matrix

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