GIS ASSESSMENT By Tim RJBR A Study of …. GIS di RJBR  GIS GITET Saguling Merk : Mitshubishi/Alsthom Sistem 500 kV Outdoor  GIS Kiaracondong Merk : Alsthom.

Presentasi berjudul: "GIS ASSESSMENT By Tim RJBR A Study of …. GIS di RJBR  GIS GITET Saguling Merk : Mitshubishi/Alsthom Sistem 500 kV Outdoor  GIS Kiaracondong Merk : Alsthom."— Transcript presentasi:

1 GIS ASSESSMENT By Tim RJBR A Study of …

2 GIS di RJBR  GIS GITET Saguling Merk : Mitshubishi/Alsthom Sistem 500 kV Outdoor  GIS Kiaracondong Merk : Alsthom Sistem 150 kV Indoor  GIS Cibabat Merk : Alsthom Sistem 150 kV Indoor

3 GIS Cibabat

4 Failure Path untuk assessment GIS Fungsi Insulasi Kelembaban SF6 tinggi Adanya Uap Air (H 2 O) Korosif Kontak/ Konduktor Timbulnya Kadar Asam (HF) Partial Discharge Terbentuknya partikel bebas Fungsi Current Carrying Losses Transfer Daya Fungsi Switching Kegagalan driving mechanism Kegagalan fungsi rele bantu Perubahan Fisik Konduktor Arcing Decomposition products (gas & powder form) Adanya Kebocoran (gas leakage)

5 Metode Inspeksi Fungsi Parameter Terukur Metode InspeksiStandard InsulationTekanan Gas (Bar) Gas Leakage Test Inspeksi Pressure Gauge Purity (% kemurnian) Purity Test > 97% (IEC 326) Moisture (°C, ppmv) Dew Point Test -15°C / 230 ppmv (CB) -15°C / 350 ppmv (on Load switch) -10°C / 530 ppmv (other < 170 kV switchgear ) 10°C / 390 ppmv (other > 245 kV switchgear ) STANDAR ALSTOM Decomposisi Product (ppmm) Decomposition products Test <1000 ppmm STANDAR CIGRE Partial Discharge (Coulomb) PD Analysis Keasaman SF6 (ppmv) Measurement of SO2

6 CIGRE B3.02 TASK FORCE 01

7 Metode inspeksi Fungsi Parameter Terukur Metode Inspeksi Current CarryingTahanan kontak (µΩ) Contact Resistance Measurement Suhu kontak Thermo-Vision

8 Metode inspeksi Fungsi Parameter Terukur Metode Inspeksi Switching Keserempakan kerja kontak (msec) Breaker Analyzer Resistansi dinamik CB (Ohm) Dynamic resistance test Tekanan minyak hidrolik (bar) Driving mechanism check Kondisi Fisik Interrupter Inspection (Over Haul)

9 Pemeliharaan berdasarkan Manual Instruction GIS Cibabat 150 kV - Alshtom

10 CB INSPECTION Maintenance Chart of Circuit Breaker TypePeriodExecution Standard Visual checkapprox. annually station staff - Gas moisture, maximum permissible moisture content of SF6 gas must not exceed 350 ppmv. -Cumulated Short Circuit Current ∑(I)2=20'000 (kA)2 - Number of Short Circuit Interuptions (nI) - Duration in system operation (a) a= nI / 0.04 x L a<=20 Check of condition approx. every 5 years Extended check approx. every 8 - 10 years Reconditioni ng approx. every 15 - 20 years or after 2500 operations or after cumulated square of breaking current is reached or if required by the results of the checks by manufacturer or supervised by manufacturer

11 CB INSPECTION Maintenance Chart of Circuit Breaker TypePeriodProcedureExecution Standard Visual checkapprox. annually- oil level trip dash pot - function of heating element of operating mechanism - operations counter reading station staff- If there are traces of oil at the top end of the dash-pot, the dash-pot must be replaced and reconditioned - Read-off and record the number of switching operations. - Gas moisture, maximum permissible moisture content of SF6 gas must not exceed 350 ppmv. - Cumulated Short Circuit Current ∑(I)2=20'000 (kA)2 - Number of Short Circuit Interuptions (nI) - Duration in system operation (a) a= nI / 0.04 x L a<=20 Check of condition approx. every 5 years in addition to visual check : - test operation ON-OFF Extended checkapprox. every 8 - 10 years in addition to visual check : - test operation ON-OFF - lubrication-check of mechanism- gear - check of linkage adjustment Reconditioningapprox. every 15 - 20 years or after 2500 operations or after cummulated square of breaking current is reached or if required by the results of the checks - check or replace contacts and nozzle - check mechanically operating components inside or outside of gas compartment - exchange of seals on operating shaft - check and replenish oil or trip dash pot - lubrication of mechanism and linkage - through cleaning - check of adjustments - test operations by manufacturer or supervised by manufacturer

12 DS INSPECTION Maintenance chart of Disconnector TypePeriodExecutionStandard Check of function Check of condition approx. every 5 years station staff- - Running time per closing operation at rated voltage : Approx. 6s Reconditioningafter 2500 operations or if required by the checking- results by manufacturer or supervised by manufacturer

13 DS INSPECTION Maintenance chart of Disconnector TypePeriodProcedureExecutionStandard Check of function Check of condition approx. every 5 years - test operation ON-OFF - comparison of operating times - check of contact penetration and condition of contacts through window station staff- Rated Normal Current : 0,8 - 1,5 A - Starting Current < 3,5 A - Running time per closing operation at rated voltage : Approx. 6s Reconditioningafter 2500 operations or if required by the checking-results - check or replace contacts - replace seals of operating shaft - inspection of mechanically operating - lubrication of mechanism and linkage - cleaning of parts inside the gas compartment by manufacturer or supervised by manufacturer

14 ES INSPECTION Maintenance chart of Disconnector TypePeriodExecutionStandard Check of function Check of condition approx. every 5 years station staff- Rated Normal Current : 0,8 - 1,5 A - Starting Current < 3,5 A - Running time per closing operation at rated voltage : Approx. 6s Reconditio ning after 2500 operations or if required by the checking- results by manufacturer or supervised by manufacturer

15 ES INSPECTION Maintenance chart of Disconnector TypePeriodProcedureExecutionStandard Check of function Check of condition approx. every 5 years - test operation ON-OFF - comparison of operating times - check of contact penetration and condition of contacts through window station staff- Rated Normal Current : 0,8 - 1,5 A - Starting Current < 3,5 A - Running time per closing operation at rated voltage : Approx. 6s Reconditio ning after 2500 operations or if required by the checking- results - check or replace contacts - replace seals of operating shaft - inspection of mechanically operating - lubrication of mechanism and linkage - cleaning of parts inside the gas compartment by manufactur er or supervised by manufactur er

16 Measurement of SO 2 1. Pengukuran kontaminasi gas SF6 2. Kontaminasi gas SF6  SF4 + H2O → SOF2 + 2HF  WF6 + 3H2O → WO3 + 2HF  2SF2 + H2O → SOF2 + 2HF + S  2S2F2 + H2O → SOF2 + 2HF + 3S  SOF2 + H2O → SO2 + 2HF  SO2 + F2 → SO2F2  SF4 + 3H2O = H2SO4 + 4HF

17 Pengujian yang telah dilaksanakan

18 Pengujian yang telah Dilakukan NoJenis PengujianAlat UjiStandard 1Purity Test (Volume Percentage Test) DILO/3-207-R002IEC 326 2Dew Point Test (Moisture Content Test) Teims - Portable/PM 2.0 ALSTHOM & SCHNEIDER 3Decomposition Product Teims – Portable/PM 2.0 CIGRÉ 23.10

19 Hasil Pengujian gas SF6 di GIS Kiaracondong NO TANGGAL PENGUJIAN TEMPAT (BAY) PHASA PURITY ( % )DEW POINT DECOMPOSITI ON PRODUCTS PRESSU RE COMP. [ BAR ] TEMP. SF 6 [ °C ] KET. COMPARTMENT HASIL STANDAR IEC 326 HASIL UJI STANDARD ALSTHOM[PPM] STANDA RD CIGRÉ*) [ °C ] [PPMv ] 01.26-04-2006 TRAFO 3 CB (Q50) R99,1> 97,0-25703<-15° & <230367< 1.0006,327PPMv Tinggi 02.26-04-2006S99,2> 97,0-29469<-15° & <230233< 1.0006,327PPMv Tinggi 03.26-04-2006T99,2> 97,0-28519<-15° & <230267< 1.0005,930PPMv Tinggi 04.26-04-2006 DS BUS 1 (Q21) R99,1> 97,0-29422<-10° & <5300< 1.0003,930Normal 05.26-04-2006S99,0> 97,0-30380<-10° & <53067< 1.0003,930Normal 06.26-04-2006T98,5> 97,0-33277<-10° & <53067< 1.0003,930Normal 07.26-04-2006 DS BUS 2 (Q22) R98,4> 97,0-33308<-10° & <53033< 1.0004,031Normal 08.26-04-2006S98,8> 97,0-34277<-10° & <53033< 1.0004,030Normal 09.27-04-2006T98,6> 97,0-26572<-10° & <530167< 1.0004,026PPMv Tinggi 10.27-04-2006 SEALING BOX (Q28) R99,1> 97,0-30380<-10° & <530267< 1.0004,029Normal 11.27-04-2006S99,4> 97,0-31381<-10° & <530300< 1.0003,928Normal 12.27-04-2006T99,4> 97,0-30380<-10° & <530133< 1.0003,928Normal 13.27-04-2006SEALING ENDR,S,T99,2> 97,0-181.249<-10° & <530133< 1.0003,827Gas Lembab!! Dilakukan penggantian SF6 pada kompartemen Sealing End Phasa R,S,T 01.26-06-2006 CB (Q50) R99,3> 97,0-28389<-15° & <230733< 1.0006,223PPMv Tinggi 02.26-06-2006 S99,3> 97,0-35186<-15° & <230400< 1.0006,225Normal 03.26-06-2006 T99,2> 97,0-4196<-15° & <230200< 1.0006,230Normal 04.26-06-2006 SEALING ENDR,S,T99,2> 97,0-22709<-10° & <530800< 1.0003,832PPMv Tinggi PT.PLN (PERSERO) P3B REGION JAKARTA DAN BANTEN UNIT JASA TEKNIK JAKARTA

20 Hasil Pengujian gas SF6 di GIS Saguling NO TANGGAL PENGUJIAN TEMPAT (BAY) PHASA PURITY ( % )DEW POINT DECOMPOSITION PRODUCTS PRESSURE GAUGE [ BAR ] AMBIENT TEMP. [ °C ] KET. COMPARTMENT HASIL STANDA R IEC 376 HASIL UJI STANDARD ALSTHOM [PPM] STANDARD CIGRÉ*) [ °C ] [PPMv ] 01.12-02-2008 DIAMETER 1 (MITSUBISHI) DS GM 14 R99,6> 97,0-5132,8<-5° & <610233< 1.0004,131Normal 02.12-02-2008S99,7> 97,0-5035,2<-5° & <610233< 1.0004,332Normal 03.11-02-2008T99,7> 97,0-5036,7<-5° & <610300< 1.0005,033Normal 04.12-02-2008 CB 7A1 R99,9> 97,0-4753,9<-10° & <350333< 1.0005,131Normal 05.12-02-2008S99,6> 97,0-4941,1<-10° & <350367< 1.0004,930Normal 06.11-02-2008T99,7> 97,0-4754,2<-10° & <350567< 1.0004,734Normal 07.12-02-2008 DS GM 13 R99,6> 97,0-5131,7<-5° & <610333< 1.0004,432Normal 08.12-02-2008S99,6> 97,0-5229,3<-5° & <61067< 1.0004,534Normal 09.11-02-2008T99,7> 97,0-4941,6<-5° & <610433< 1.0004,534Normal 10.12-02-2008 CB 7AB1 R99,9> 97,0-4845,1<-10° & <350200< 1.0005,029Normal 11.12-02-2008S99,4> 97,0-4657,4<-10° & <3500< 1.0004,932Normal 12.12-02-2008T99,5> 97,0-4941,3<-10° & <350433< 1.0004,829Normal 13.12-02-2008 DS GM 12 R99,5> 97,0-5229,1<-5° & <610267< 1.0004,230Normal 14.12-02-2008S99,6> 97,0-5229,1<-5° & <61033< 1.0004,431Normal 15.12-02-2008T99,9> 97,0-5131,7<-5° & <610433< 1.0003,929Normal 16.12-02-2008 CB 7B1 R99,6> 97,0-4848,0<-10° & <350400< 1.0005,133Normal 17.12-02-2008S99,7> 97,0-41107,8<-10° & <3500< 1.0004,932Normal 18.12-02-2008T99,7> 97,0-4940,5<-10° & <350567< 1.0004,831Normal 19.12-02-2008 DS GM 11 R99,6> 97,0-5231,3<-5° & <610167< 1.0004,433Normal 20.12-02-2008S99,7> 97,0-5229,8<-5° & <610167< 1.0004,433Normal 21.12-02-2008T99,5> 97,0-5132,8<-5° & <610567< 1.0004,331Normal

21 Hasil Pengujian gas SF6 di GIS Saguling NO TANGGAL PENGUJIAN TEMPAT (BAY) PHASA PURITY ( % )DEW POINT DECOMPOSITION PRODUCTS PRESSURE GAUGE [ BAR ] AMBIENT TEMP. [ °C ] KET. COMPARTMENT HASIL STANDAR IEC 376 HASIL UJI STANDARD ALSTHOM [PPM] STANDARD CIGRÉ*) [ °C ][PPMv] 22.14-02-2008 DIAMETER 2 (MITSUBISHI) DS GM 24 R99,8> 97,0-4851,3<-5° & <610367< 1.0004,432Normal 23.14-02-2008S99,8> 97,0-4758,8<-5° & <610133< 1.0004,328Normal 24.12-02-2008T99,8> 97,0-4759,5<-5° & <610100< 1.0004,530Normal 25.14-02-2008 CB 7A2 R99,8> 97,0-4942,7<-10° & <350167< 1.0004,931Normal 26.14-02-2008S99,6> 97,0-4945,6<-10° & <350400< 1.0004,829Normal 27.12-02-2008T99,8> 97,0-5042,8<-10° & <350200< 1.0005,032Normal 28.14-02-2008 DS GM 23 R99,7> 97,0-4946,7<-5° & <610267< 1.0004,531Normal 29.14-02-2008S99,8> 97,0-38175,3<-5° & <610367< 1.0004,430Normal 30.14-02-2008T99,6> 97,0-4757,5<-5° & <61033< 1.0004,429Normal 31.14-02-2008 CB 7AB2 R99,7> 97,0-4660,7<-10° & <350333< 1.0004,932Normal 32.14-02-2008S99,7> 97,0-4948,4<-10° & <350300< 1.0004,730Normal 33.14-02-2008T99,7> 97,0-5042,7<-10° & <350433< 1.0005,030Normal 34.14-02-2008 DS GM 22 R99,6> 97,0-4757,2<-5° & <610367< 1.0004,332Normal 35.14-02-2008S99,7> 97,0-4761,8<-5° & <610300< 1.0004,431Normal 36.14-02-2008T99,7> 97,0-5137,1<-5° & <6102.033< 1.0004,430 Contaminatio ns!! 37.14-02-2008 CB 7B2 R99,7> 97,0-4946,1<-10° & <350200< 1.0005,032Normal 38.14-02-2008S99,1> 97,0-4854,3<-10° & <35033< 1.0005,032Normal 39.14-02-2008T99,9> 97,0-5043,8<-10° & <350133< 1.0004,932Normal 40.14-02-2008 DS GM 21 R99,9> 97,0-4666,0<-5° & <610100< 1.0004,330Normal 41.14-02-2008S99,7> 97,0-4571,5<-5° & <610167< 1.0004,332Normal 42.14-02-2008T99,8> 97,0-4945,1<-5° & <610233< 1.0004,433Normal

22 Hasil Pengujian gas SF6 di GIS Saguling NO TANGGAL PENGUJIAN TEMPAT (BAY) PHASA PURITY ( % )DEW POINT DECOMPOSITION PRODUCTS PRESSURE GAUGE [ BAR ] AMBIENT TEMP. [ °C ] KET. COMPARTMENT HASIL STANDAR IEC 376 HASIL UJI STANDARD ALSTHOM [PPM] STANDARD CIGRÉ*) [ °C ][PPMv] 43.13-02-2008 DIAMETER 4 (MITSUBISHI) DS GM 43 R99,9> 97,0-39148,8<-5° & <610100< 1.0004,530Normal 44.13-02-2008S99,8> 97,0-35227,0<-5° & <610433< 1.0004,432Normal 45.13-02-2008T99,8> 97,0-34260,0<-5° & <610400< 1.0004,532Normal 46.13-02-2008 CB 7AB4 R99,9> 97,0-38157,2<-10° & <35033< 1.0005,130Normal 47.13-02-2008S99,6> 97,0-36197,1<-10° & <350333< 1.0005,032Normal 48.13-02-2008T99,9> 97,0-36195,6<-10° & <350467< 1.0005,031Normal 49.14-02-2008 DS GM 42 R99,7> 97,0-36193,2<-5° & <6100< 1.0004,433Normal 50.13-02-2008S99,6> 97,0-35213,3<-5° & <610133< 1.0004,532Normal 51.13-02-2008T99,8> 97,0-40124,2<-5° & <610233< 1.0004,431Normal 52.13-02-2008 CB 7B4 R99,8> 97,0-36208,4<-10° & <35067< 1.0005,031Normal 53.13-02-2008S99,8> 97,0-42105,3<-10° & <35033< 1.0005,033Normal 54.13-02-2008T99,7> 97,0-40126,5<-10° & <350267< 1.0004,631Normal 55.13-02-2008 DS GM 41 R99,8> 97,0-34260,0<-5° & <610200< 1.0004,431Normal 56.13-02-2008S99,9> 97,0-42106,4<-5° & <610133< 1.0004,532Normal 57.13-02-2008T99,7> 97,0-38159,7<-5° & <610467< 1.0004,533Normal

23 Penutup 1.Pengujian yang telah dilaksanakan meliputi: a. Pengujian Fungsi Insulasi: i. Pengukuran Purity ii. Pengukuran dewpoint iii. Pengukuran decomposition product iv. Pengukuran Parial Discharge b. Pengujian Switching Pengujian dengan menggunakan breaker analyser 2.Penggantian SF6 merupakan tindakan yang telah dilaksanakan untuk perbaikan kondisi insulasi 3.Hasil uji fungsi insulasi di atas, perlu dilakukan analisis lebih lanjut dengan komparasi terhadap hasil uji seperti Partial Discharge

24 TERIMA KASIH