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Full Name : Siswanto
Email : sis_cahya@yahoo.com
Mobile phone : ++62 81311 422270, ++62 81398 199500
Position : Senior Engineer
Power Generation Services
Power Generation Project Experiences
1. Major Overhaul 49.5 MVA / 11500V / 3000 RPM, GE Generator .PT Petro Kimia Gresik, EAST JAVA. INDONESIA
Main activities:
- Overhaul Stator – Rotor
- Digital EL CID Test to analysis of stator core
- Insulation Power Factor Tangent Delta Test
- AC Impedance test on the rotor to analysis of rotor winding
- Commissioning
2. Major Overhaul 250 MVA / 15500 V / 3000 RPM / Toshiba Generator. PT.PLN Pembangkitan Jawa Bali. Gresik , EAST JAVA INDONESIA
Main activities :
- Stator wedges replacement and upgrading material from class B to NEMA G11
- Installment of Radial Spring stator wedges
- Insulation Power Factor Tangent Delta Test
- Commissioning
3. Re Insulate Stator winding 87.5 MVA / 11000 V / 3000 RPM, Alstom Generator. PT DSS Serang. WEST JAVA . INDONESIA
Main activities:
- Site inspection and fault analysis
- Re insulate 18 stator bar coils with class F Insulation
- Insulation Power Factor Tangent Delta Test
- Bar to Bar analysis Partial Discharge Test
- Digital EL CID test core stator analysis
- Commissioning
4. Repair rotor winding 28.5 MVA / 11000 V / 3000 RPM, GE Generator. PT PLN Pembangkitan Jawa Bali. Unit Gili Timur Madura. MADURA. INDONESIA
Main activities:
- Re insulate end winding and replacement of end winding blocking coil with retaining rings removal
- AC impedance and voltage drop test on the rotor winding
5. Rewinding Rotor 7.5 MVA / 11000 V / 3000 RPM. Shandong Generator. PT. Pura Barutama Kudus Central Java. INDONESIA
Main activities:
- Site Inspection and fault analysis
- Rewinding rotor with retaining removal
- AC Impedance Test
6. Rewinding Rotor 6.5 MVA / 6.6 kV / 3000 RPM. Shandong Generator. PGDSU, Cilegon. WEST JAVA INDONESIA
Main activities:
- Site Inspection and fault analysis
- Rewinding Rotor
7. Major Overhaul ALSTOM Generator 46.35 MVA / 11000 V / 3000 RPM
PT KALTIM DAYA MURNI / Pupuk KALTIM. EAST KALIMANTAN. INDONESIA
- Inspection
- Insulation Testing
- Partial Discharge Test
- Stator core analysis by using Digital EL CID Technology
8. Insulation Assessment of 3.5 MW to 10 MW / 10 KV Electric Motors PT Tanjung Jati B Power Services, JEPARA, Central Java. INDONESIA
- Insulation test
- Dissipation Power Factor Tangent Delta test
9. Major inspection on Mitsubishi 125 MVA / 15 kV / 3000 RPM. Turbo Generator
PT PLN PJB Unit #3 Muarakarang. JAKARTA. INDONESIA
10. Total rewind rotor GE Generator 237.5 MVA / 15KV / 3000 RPM, PT PEMBANGKITAN JAWA BALI UNIT MUARAKARANG STG#1
including :
- total replace the slot liner insulations form Normal nomex materials to Nomex - glass G11
- total replace and upgrading inter turn insulation Glass G11 1 layer to Double B-Stage Nomex 410 + normal Nomex 410
- upgrading the CRR's insulation from normal nomex and Glass G 11 to TD PTFE glass G11
- modiifed of creepage block
- degaussing on HP/LP turbine/ casing/thrust bearings/couplings/rotor generator shaft/body/coupling from the existing over than 50 gauss reduced up to 0 to 6 gauss
- NDT on rotor body/shafts/ journals
- low speed balancing and insitu balancing by Bently Nevada instrument
11. Etc
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