gis assessment

Tim Assessment GIS RJKBTim Assessment GIS RJKB

GIS ASSESSMENTGIS ASSESSMENT

Bandung, 8 s/d 9 Juli 2008Bandung, 8 s/d 9 Juli 2008

Tim Assessment GIS RJKB

METODE ASSESSMENT GIS


Pengukuran Kualitas Gas Pengukuran Kualitas Gas SF6SF6

• PURITYPURITY– Untuk mengetahui persentase SF6 di dalam kompartemen.Untuk mengetahui persentase SF6 di dalam kompartemen.

• Standard: IEC 376 (> 97%)Standard: IEC 376 (> 97%)

• Purity ideal: 99,90%Purity ideal: 99,90%

• DEW POINTDEW POINT– Mengukur temperatur pada saat terjadi pengembunan gas Mengukur temperatur pada saat terjadi pengembunan gas

SF6 dalam kompartemen dalam satuan SF6 dalam kompartemen dalam satuan ooC.C.

• DECOMPOSITION PRODUCTDECOMPOSITION PRODUCT– untuk mengetahui untuk mengetahui nilai / besaran decomposition dari gas nilai / besaran decomposition dari gas

SF6 dalam ppmSF6 dalam ppm

• Standard : Standard : CIGRÉ “SF6 Recycling Guide” (by CIGRÉ 23.10 TASK FORCE 01, May 1997

• Moisture ContentMoisture Content– Mengukur tingkat kelembaban gas SF6 dalam Mengukur tingkat kelembaban gas SF6 dalam

kompartemen dalam satuan ppmvkompartemen dalam satuan ppmv


Permissible moisture content Permissible moisture content limitslimits

Gas Gas compartment compartment Switchgear Switchgear

rated voltagerated voltage

Filling pressure Filling pressure (gauge at 20 (gauge at 20 ooC C

bar)bar)

After Installation and After Installation and MaintenanceMaintenance

In ServiceIn Service

Dew Point Dew Point ooC C (2)(2)

Water Content Water Content

ppmppmvv (1) (1)Dew Point Dew Point ooC (2)C (2) Water Content Water Content

ppmppmvv (1) (1)

Circuit BreakerCircuit Breaker

( all voltage )( all voltage )6.26.2 -1515 230230 -1010 350350

On-load SwitchOn-load Switch

( up to 170 kV )( up to 170 kV )3.83.8 -1515 350350 -1010 530530

Other SwitchgearOther Switchgear

( up to 170 kV )( up to 170 kV )3.83.8 -1010 530530 -55 840840

Other SwitchgearOther Switchgear

( 245 kV )( 245 kV )5.55.5 - 10- 10 390390 -55 610610

GEC Alsthom

1. ppmv = water content in “parts per million” referred to volume (values referred to mass or weight in ppmg can be converted with a factor of 8.1)

2. The dew point is valid for the operating pressure range between filling pressure and minimum rating pressure


Spesifikasi Gas SF6 Baru

ComponentComponent ASTM 2472 DASTM 2472 DIEC 376IEC 376 ASG ASG

TYPICALTYPICAL

Sulfurhexafluoride (by wt.)Sulfurhexafluoride (by wt.) 99.8%99.8% 99.8%99.8% 99.9%99.9%

Water (vol. %)Water (vol. %) 8 ppmv8 ppmv 15 ppmv15 ppmv 5 ppmv5 ppmv

Dew PointDew Point -62°C-62°C -40°C-40°C -65°C-65°C

Hydrolyzable Fluorides (HF)Hydrolyzable Fluorides (HF) 0.3 ppmw0.3 ppmw 1.0 1.0

ppmwppmw 0.3 0.3 ppmwppmw

Air (wt. %)Air (wt. %) 500 ppmw500 ppmw 500 500

ppmwppmw 200 200 ppmwppmw

Carbon Tetrafluoride (CF4) (wt. Carbon Tetrafluoride (CF4) (wt. %)%) 500 ppmw500 ppmw 500 500

ppmwppmw 200 200 ppmwppmw

ALSTHOM

> 99.0 %> 99.0 %


1.1. GIS KetapangGIS Ketapang ((HitachiHitachi))

2.2. GIS Gedong Pola GIS Gedong Pola ((AseaAsea))

3.3. GIS SenayanGIS Senayan ((HitachiHitachi) )

4.4. GIS Karet BaruGIS Karet Baru ((HitachiHitachi))

5.5. GIS Mampang LamaGIS Mampang Lama ((HitachiHitachi))

6.6. GIS Kebon SirihGIS Kebon Sirih ((Merlin GerlinMerlin Gerlin))

7.7. GIS Kebon JerukGIS Kebon Jeruk ((HitachiHitachi))

8.8. GIS Salak LamaGIS Salak Lama ((ABB/GanzABB/Ganz))

9.9. GIS PulogadungGIS Pulogadung ((AseaAsea))

10.10.GIS SetiabudiGIS Setiabudi ((AlsthomAlsthom))

11.11.GIS CawangGIS Cawang ((HitachiHitachi))

Total : 11 GISTotal : 11 GIS

GIS Assessment (2006 – GIS Assessment (2006 – 2008)2008)

PARTIAL DISCHARGEPARTIAL DISCHARGE


Discharge di GIS

Types of Discharge Discharge Characteristic

Power arc:Current interruption, in-service fault

3-100 kA, 50-150 ms, 105-107 J, 20000 K (19727 ºC)

Spark:Capacitive discharge, fault during testing, disconnector switching

High instantaneous current, µs duration, 10-1-102 J

Partial discharge:Stress enhancement, electrically floating component, free conducting particle

10-103 pC, 10-6-10-3 J per pulse, 102-103 MHz


Partial Discharge

Peluahan muatan setempat karena adanya penguatan medan listrik setempat

Menghasilkan: Aliran arus listrik/perubahan tegangan Gelombang elektromagnetik Gelombang suara Gelombang panas Gelombang cahaya


Partial Discharge

Berakibat breakdown jika: Kuat medan listrik SF6: 8,9 kV/mm Breakdown needs

Starting electron Ionization Feedback mechanism


Dasar Diagnostic Partial Discharge

Metoda diagnosa memanfaatkan sifat gelombang yang ditimbulkan PD, misal: Gelombang elektromagnetik: merambat

keluar melalui bagian non-metal (spacer, gas rupture disc)

Gelombang suara merambat: keluar dari bagian metal

Tiap defect menimbulkan pola tersendiri


Dasar Diagnostic Partial Discharge

Perlu diingat: Gelombang selalu mengalami peredaman,

pemantulan dan perambatan Semakin jauh dari pusat, semakin sedikit

energi yang tertangkap Interferensi dari luar selalu ada (pemancar

TV, radio, telepon selular, radar, baterei, dll)


Diagnosa PD yang Populer

IEC 60270 method: mendeteksi timbulnya aliran listrik sesaat [pC, nC]

Ultra High Frequency/Very High Frequency (UHF/VHF): mendeteksi timbulnya gelombang elektromagnetik [µV, mV]

Acoustic Emission/AE: mendeteksi timbulnya gelombang akustik/suara [µV, mV]

Am

plitu

de [d

Bm

]

Frequency [MHz]0 1000 2000

IEC

270

: 40

-400

kH

z

VHF:

up

to 3

00 M

Hz

UHF: above 300 MHz

300

Am

plitu

de [d

Bm

]

Frequency [MHz]0 1000 2000

IEC

270

: 40

-400

kH

z

VHF:

up

to 3

00 M

Hz

UHF: above 300 MHz

300


IEC 60270 – VHF/UHF – IEC 60270 – VHF/UHF – AEAE IEC 60270IEC 60270 VHF/UHFVHF/UHF AEAE

GIS service GIS service conditioncondition

Off-lineOff-line On-line, off-On-line, off-lineline

On-line, off-On-line, off-lineline

KalibratorKalibrator AdaAda Tidak adaTidak ada Tidak adaTidak adaPeredaman Peredaman noisenoise

BurukBuruk Sangat baikSangat baik BaikBaik

SensitivitasSensitivitas 10% atau 1 pC10% atau 1 pC 5 pC5 pC 5 pC5 pCJangkauan Jangkauan pengukuranpengukuran

LuasLuas SempitSempit

Posisi sensorPosisi sensor Non-metalNon-metal MetalMetalBesaran PDBesaran PD PRPDPRPD Frequency Frequency

spectrum, spectrum, PRPDPRPD

Individual Individual pulses, pulses, spectrum, spectrum, PRPDPRPD


Analisa PD

Besaran amplitudo pC/nC tidak dapat disetarakan dengan μV/mV

Yang perlu diperhatikan adalah Pertumbuhan dan intensitas Jenis sumber PD (tiap sumber tingkat

resikonya berlainan)


Diagnostik PD VHF/UHFDiagnostik PD VHF/UHF

Average Background Amplitude

-100

-95

-90

-85

-80

-75

600 712.5 825 937.5 1050 1162.5 1275 1387.5 1500

Frequency

Am

plit

ud

e

Cellular phone

TV Broadcast

Radar

Cellular phone

TV Broadcast

Radar

Average Signal Amplitude

-100

-95

-90

-85

-80

-75

600 712.5 825 937.5 1050 1162.5 1275 1387.5 1500

Frequency

Am

plit

ud

eAmplitude Background

Average Signal Amplitude

-100

-95

-90

-85

-80

-75

600 712.5 825 937.5 1050 1162.5 1275 1387.5 1500

Frequency

Am

plit

ud

e

PD ACTIVITIESPD ACTIVITIES

Di domain frekuensi


Diagnostik PD Diagnostik PD AEAE• Hasil pengukuran ada 2 tipe:Hasil pengukuran ada 2 tipe:

– ContinuousContinuous•Melihat nilai RMSMelihat nilai RMS

•Periode nilai puncakPeriode nilai puncak

•Komponen f dan 2fKomponen f dan 2f

– PulsaPulsa

Tipe Continuous Tipe Pulsa


Contoh Pola Contoh Pola PDPD

Floating electrode

Free moving particle


Reclaiming Gas SF6


Reklamasi gas SF6

Reklamasi gas SF6 dilakukan berdasarkan :1. Hasil pengukuran gas SF6 dengan nilai Decomposition Product tinggi.

2. Hasil pengukuran gas SF6 dengan nilai Dew Point rendah.(< -10oC)3. Hasil pengukuran gas SF6 dengan nilai Moisture Content tinggi.4. Efficiency Drive Project5. Pemanasan global


Skema Reklamasi Gas SF6 Secara Umum


NoNo

Jenis gas yang Jenis gas yang dapat diserap dapat diserap

(absorb) oleh Dilo (absorb) oleh Dilo Portable pre-filter Portable pre-filter

unitunit

KeteranganKeterangan

11 HFHF Hydrogen fluorideHydrogen fluoride

22 SOSO22 Sulphur dioxideSulphur dioxide

33 SOFSOF22 Thionyl flourideThionyl flouride

44 SOSO22FF22 Sulfury flourideSulfury flouride

55 SFSF44 Sulfur tetraflourideSulfur tetraflouride

Particle Filter

Dry Filter

Portable Pre - Filter


REKLAMASI DENGAN 3 CYCLES

99.4 99.8 99.6 99.6

-35.3 -43.5 -43.9 -42.6

215.5

85.4 81.1 94.1

767 767

367

767

SF6 Vol 99.4 99.8 99.6 99.6

Moisture / °C DP -35.3 -43.5 -43.9 -42.6

Moisture / ppmv 215.5 85.4 81.1 94.1

Conzentration of DP 767 767 767 367

PRA ONE_CYCLE TWO_CYCLES 3RD_CYCLES


99.6 99.5

-40.7 -45.1

117.770.6

933

567

SF6 Vol 99.6 99.5

Moisture / °C DP -40.7 -45.1

Moisture / ppmv 117.7 70.6

Conzentration of DP 933 567

ONE_CYCLE 2ND_CYCLES


99.4 99.7

-38.5 -45.5

151.3

67.5

667

300

SF6 Vol 99.4 99.7

Moisture / °C DP -38.5 -45.5

Moisture / ppmv 151.3 67.5

Conzentration of DP 667 300

PRA 2ND_CYCLES

Data Proses Reklamasi gas SF6 GIS Gedung PolaS

tora

ge T

an

k 1

Sto

rag

e T

an

k 2

Sto

rag

e T

an

k 3


UPT : JAKARTA PUSATLOKASI : GIS. GEDUNG POLA 150KV

Merk GIS : ASEAMerk/Type Alat Uji : - Teims-Portable PM 2.0

- DILO/3-207-R002

[ °C ] [PPMv]

01. 12-07-2006 CB R,S,T 99.4 > 97.0 -43 70 < -10 ° & <350 1,233 < 1,000 6.8 30 Contaminations!!

02. 12-07-2006 DS REL R,S,T 98.8 > 97.0 -16 1,159 < -5 ° & <840 1,233 < 1,000 5.6 31 Contaminations!!

03. 12-07-2006 DS LINE R,S,T 98.8 > 97.0 -15 1,271 < -5 ° & <840 1,200 < 1,000 5.6 28 Contaminations!!

04. 12-07-2006 PT R,S,T 99.0 > 97.0 -15 1,271 < -5 ° & <840 1,733 < 1,000 5.6 34 Contaminations!!

05. 13-07-2006 CB R,S,T 99.1 > 97.0 -44 62 < -10 ° & <350 1,467 < 1,000 6.5 34 Contaminations!!

06. 13-07-2006 DS REL R,S,T 99.2 > 97.0 -22 654 < -5 ° & <840 1,567 < 1,000 5.9 33 Contaminations!!

07. 13-07-2006 DS LINE R,S,T 99.5 > 97.0 -22 654 < -5 ° & <840 1,600 < 1,000 5.8 30 Contaminations!!


09. 11-07-2006 CB R,S,T 99.2 > 97.0 -44 62 < -10 ° & <350 633 < 1,000 6.8 30 Normal

10. 11-07-2006 DS REL R,S,T 98.8 > 97.0 -24 538 < -5 ° & <840 533 < 1,000 5.6 35 Normal

11. 11-07-2006 SEALING END R,S,T 98.8 > 97.0 -29 324 < -5 ° & <840 1,567 < 1,000 5.6 29 Contaminations!!

12. 11-07-2006 SECTION DS R,S,T 99.1 > 97.0 -24 538 < -10 ° & <530 1,633 < 1,000 5.6 30 Contaminations!!

13. 12-07-2006 CB R,S,T 98.8 > 97.0 -44 62 < -10 ° & <350 500 < 1,000 6.7 27 Normal


15. 12-07-2006 SEALING END R,S,T 98.7 > 97.0 -28 359 < -5 ° & <840 2,067 < 1,000 5.6 32 Contaminations!!

16. 04-07-2006 CB R,S,T 99,5 > 97.0 -38 124 < -10 ° & <350 1,500 < 1,000 6.6 24 Contaminations!!


18. 04-07-2006 SEALING END R,S,T 99,3 > 97.0 -17 1,055 < -5 ° & <840 1,833 < 1,000 5.7 26 Contaminations!!


20. 13-07-2006 CB R,S,T 99,3 > 97.0 -46 49 < -10 ° & <350 1,267 < 1,000 6.7 30 Contaminations!!


22. 13-07-2006 DS LINE R,S,T 99.1 > 97.0 -17 1,055 < -5 ° & <840 1,600 < 1,000 5.6 29 Contaminations!!

23. 13-07-2006 PT R,S,T 99.1 > 97.0 -19 874 < -5 ° & <840 1,667 < 1,000 5.6 33 Contaminations!!

TRAFO 3

SPARE

PENGUJIAN KUALITAS GAS SF-6

DECOMPOSITION PRODUCTS

[PPM]

NOTANGGAL

PENGUJIANTEMPAT

(BAY)COMPARTMENT

STANDARD CIGRÉ*)

DEW POINT

PHASAHASIL UJI

PURITY ( % )

HASILSTANDAR

IEC 326

GAMBIR BARU 1

GAMBIR BARU 2

TRAFO 1

TRAFO 2

KET.PRESSURE

GAUGE [ BAR ]

AMBIENT TEMP. [ °C ]STANDARD

ALSTHOM

PT.PLN (PERSERO) PENYALURAN DAN PUSAT PENGATURAN BEBANREGION JAKARTA DAN BANTEN

Data Pengukuran gas SF6 GIS Gedung Pola sebelum reklamasi


GIS P3B JB - RJKBGIS P3B JB - RJKB

1.1. GIS. KetapangGIS. Ketapang (ASEA)(ASEA)

2.2. GIS. Gedung PolaGIS. Gedung Pola (ASEA)(ASEA)

3.3. GIS. Salak LamaGIS. Salak Lama (ABB / Ganz)(ABB / Ganz)

SFSF66 Reclaiming Reclaiming

• GIS. Ketapang used new GIS. Ketapang used new SFSF66

• GIS. Gedung PolaGIS. Gedung Pola used used reclaimed reclaimed SFSF66 from GIS Ketapang from GIS Ketapang

• GIS. Salak LamaGIS. Salak Lama used used reclaimed reclaimed SFSF66 from GIS. Gedung Pola from GIS. Gedung Pola

• SFSF66 from GIS. Salak Lama hasn’t been reclaimed yet from GIS. Salak Lama hasn’t been reclaimed yet

Note :

In 2007, we bought 140 bottles (± 5610 kG) SFSF66


Data Pengukuran gas SF6 GIS Gedung Pola setelah reklamasiUPT : JAKARTA PUSATLOKASI : GIS. GEDUNG POLA 150KV

Merk GIS : ASEAMerk/Type Alat Uji : - Teims-Portable PM 2.0

- RH Systems / 973-SF6

[ °C ] [PPMv]

01. 26-01-2008 CB R,S,T 99.9 > 97.0 -41.5 107.8 < -10 ° & <350 733 < 1,000 6.6 35 Normal

02. 26-01-2008 DS REL R,S,T 99.8 > 97.0 -34.8 227.1 < -5 ° & <840 1,233 < 1,000 5.7 35 Contaminations!!

03. 26-01-2008 DS LINE R,S,T 99.9 > 97.0 -27.1 508.6 < -5 ° & <840 733 < 1,000 5.7 36 Normal

04. 26-01-2008 PT R,S,T 99.2 > 97.0 -25.9 575.9 < -5 ° & <840 1,767 < 1,000 5.6 35 Contaminations!!

05. 27-01-2008 CB R,S,T 99.9 > 97.0 -47.3 54.2 < -10 ° & <350 600 < 1,000 6.6 33 Normal

06. 27-01-2008 DS REL R,S,T 99.6 > 97.0 -38.4 152.8 < -5 ° & <840 600 < 1,000 5.7 34 Normal

07. 27-01-2008 DS LINE R,S,T 99.3 > 97.0 -38.2 155.5 < -5 ° & <840 700 < 1,000 5.7 35 Normal

08. 27-01-2008 PT R,S,T 99.5 > 97.0 -33.9 250.8 < -5 ° & <840 767 < 1,000 5.6 33 Normal

09. 27-01-2008 CB R,S,T 99.3 > 97.0 -41.2 111.0 < -10 ° & <350 567 < 1,000 6.5 34 Normal

10. 27-01-2008 DS REL R,S,T 99.5 > 97.0 -27.8 472.9 < -5 ° & <840 967 < 1,000 5.6 34 Normal

11. 27-01-2008 SEALING END R,S,T 99.5 > 97.0 -35.7 206.1 < -5 ° & <840 2,067 < 1,000 5.6 31 Contaminations!!

12. 26-01-2008 SECTION DS R,S,T 99.2 > 97.0 -37.9 161.3 < -10 ° & <530 400 < 1,000 5.6 36 Normal

13. 26-01-2008 CB R,S,T 99.0 > 97.0 -41.2 111.0 < -10 ° & <350 467 < 1,000 6.6 38 Normal


15. 26-01-2008 SEALING END R,S,T 99.3 > 97.0 -26.7 526.3 < -5 ° & <840 2,100 < 1,000 5.6 35 Contaminations!!

16. 27-01-2008 CB R,S,T 99.6 > 97.0 -45.2 69.8 < -10 ° & <350 467 < 1,000 6.6 36 Normal

17. 27-01-2008 DS REL R,S,T 99.5 > 97.0 -41 113.5 < -5 ° & <840 533 < 1,000 5.7 36 Normal

18. 27-01-2008 SEALING END R,S,T 99.7 > 97.0 -34.8 225.2 < -5 ° & <840 800 < 1,000 5.7 35 Normal

19. 27-01-2008 PT R,S,T 99.6 > 97.0 -32 305.6 < -5 ° & <840 933 < 1,000 5.6 35 Normal

20. 26-01-2008 CB R,S,T 99.8 > 97.0 -39.4 135.9 < -10 ° & <350 1,600 < 1,000 5.7 37 Contaminations!!


22. 26-01-2008 DS LINE R,S,T 99.5 > 97.0 -21.8 860.1 < -5 ° & <840 1,633 < 1,000 5.7 37 Contaminations!!

23. 26-01-2008 PT R,S,T 99.5 > 97.0 -25.8 578.1 < -5 ° & <840 1,533 < 1,000 5.6 37 Contaminations!!

PENGUJIAN KUALITAS GAS SF-6

NOTANGGAL

PENGUJIANTEMPAT

(BAY)PHASA

PURITY ( % ) DEW POINTDECOMPOSITION

PRODUCTSPRESSURE

GAUGE ABSOLUTE

[ BAR ]

AMBIENT TEMP. [ °C ]

KET.COMPARTMENT

HASILSTANDAR

IEC 326

HASIL UJI STANDARD ALSTHOM

[PPM]STANDARD

CIGRÉ*)

GAMBIR BARU 1

GAMBIR BARU 2

TRAFO 1

TRAFO 2

TRAFO 3

SPARE

PT.PLN (PERSERO) PENYALURAN DAN PUSAT PENGATURAN BEBANREGION JAKARTA DAN BANTEN

gis assessment

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