Pengamatan Waktu Siklus
(menit) BKA BKB Mean
1 19,25 19,55 19,15 19,35
2 19,44 19,55 19,15 19,35
3 19,31 19,55 19,15 19,35
4 19,37 19,55 19,15 19,35
5 19,49 19,55 19,15 19,35
6 19,34 19,55 19,15 19,35
7 19,19 19,55 19,15 19,35
8 19,47 19,55 19,15 19,35
9 19,23 19,55 19,15 19,35
10 19,39 19,55 19,15 19,35
13. Finishing
Pengamatan Waktu Siklus
(menit) BKA BKB Mean
1 4,01 4,37 3,97 4,17
2 4,32 4,37 3,97 4,17
3 4,07 4,37 3,97 4,17
4 4,19 4,37 3,97 4,17
5 4,17 4,37 3,97 4,17
6 4,23 4,37 3,97 4,17
7 4,14 4,37 3,97 4,17
8 4,22 4,37 3,97 4,17
9 4,27 4,37 3,97 4,17
10 4,09 4,37 3,97 4,17
LAMPIRAN 4
Uji Kecukupan Data Trafo 50 KVA, 3Ø Work
Center Proses
Waktu Siklus (menit)
ΣX ΣX2 N'
1 2 3 4 5 6 7 8 9 10
I Pemotongan Silicon Steel
10,70 10,55 10,62 10,54 10,64 10,49 10,51 10,41 10,57 10,45 105,48 1112,67 0,102 II Penggulungan Inti Trafo 18,50 18,57 18,21 18,10 18,49 18,32 18,45 18,33 18,49 18,40 183,86 3380,64 0,091 III Penimbangan Berat Inti 5,31 5,48 5,41 5,24 5,43 5,42 5,20 5,06 5,18 5,42 53,15 282,65 0,989 IV Pemanggangan Inti 1440,00 1440,00 1440,0 1440,00 1440,00 1440,00 1440,00 1440,00 1440,00 1440,00 14400 20736000 0
V Pengujian Rugi-rugi Inti 9,08 9,20 9,30 9,35 9,11 9,44 9,06 9,40 9,32 9,33 92,59 857,46 0,315 VI Penggulungan
Kumparan
83,09 83,01 83,12 83,08 83,40 83,26 83,24 83,23 83,13 83,24 831,80 69189,24 0,010 VII Pemasangan Koneksi 88,25 87,83 87,89 88,18 88,00 87,92 87,72 88,24 87,66 88,32 880,01 77442,81 0,003 VIII Pengeringan Trafo 2880,00 2880,00 2880,0 2880,00 2880,00 2880,00 2880,00 2880,00 2880,00 2880,00 28800 82944000 0
IX Pemasangan Terminal,
Casing 16,24 16,55 16,32 16,37 16,49 16,56 16,77 16,52 16,43 16,41 164,66 2711,49 0,117 X Pengujian Turn Ratio
Test
50,71 50,78 50,41 50,58 50,09 50,23 50,42 50,22 50,69 50,33 504,46 25448,49 0,031
Uji Kecukupan Data Trafo 50 KVA, 3Ø Work
Center Proses
Waktu Siklus (menit)
ΣX ΣX2 N'
1 2 3 4 5 6 7 8 9 10
XI Pengisian Minyak 20,12 20,09 20,23 20,07 20,18 20,32 20,17 20,25 20,10 20,15 201,68 4067,54 0,022 XII Routing Test 19,25 19,44 19,31 19,37 19,49 19,34 19,19 19,47 19,23 19,39 193,48 3743,55 0,041 XIII Finishing 4,01 4,32 4,07 4,19 4,17 4,23 4,14 4,22 4,27 4,09 41,71 174,05 0,753
Waktu Siklus Trafo 25 KVA, 3Ø di Setiap Proses
Work
Center Proses WaktuSiklus(menit)
1 2 3 4 5 6 7 8 9 10
I Pemotongan Silicon Steel 9,33 9,21 9,42 9,34 9,32 9,51 9,57 9,43 9,20 9,61
II Penggulungan Inti Trafo 14,57 14,50 14,49 14,10 14,21 14,39 14,32 14,40 14,45 14,39
III Penimbangan Berat Inti 4,18 4,20 4,41 4,42 4,23 4,43 4,38 4,31 4,17 4,25
IV Pemanggangan Inti 1440,00 1440,00 1440,00 1440,00 1440,00 1440,00 1440,00 1440,00 1440,00 1440,00
V Pengujian Rugi-rugi Inti 7,96 8,09 8,01 7,96 7,99 8,04 8,00 7,89 8,03 8,07
VI Penggulungan Kumparan 60,19 60,16 59,85 59,87 59,95 60,24 60,03 60,17 59,69 60,25 VII Pemasangan Koneksi 64,52 64,44 64,85 65,08 64,79 64,58 64,85 64,53 64,91 64,66 VIII Pengeringan Trafo 2880,00 2880,00 2880,00 2880,00 2880,00 2880,00 2880,00 2880,00 2880,00 2880,00
IX Pemasangan Terminal, Casing 14,55 14,37 14,24 14,43 14,46 14,36 14,43 14,77 14,52 14,62 X Pengujian Turn Ratio Test 49,66 49,43 49,62 49,35 49,71 49,39 49,49 49,29 49,47 49,41 XI Pengisian Minyak 19,17 19,09 19,25 19,10 19,20 19,32 19,12 19,18 19,07 19,23
XII Routing Test 18,49 18,23 18,31 18,27 18,35 18,34 18,24 18,47 18,44 18,38
XIII Finishing 4,19 4,22 4,32 4,25 4,13 4,35 4,17 4,23 4,29 4,31
Waktu Siklus Trafo 100 KVA, 3Ø di Setiap Proses
Work
Center Proses WaktuSiklus(menit)
1 2 3 4 5
I Pemotongan Silicon Steel 10,66 10,16 10,54 10,45 10,68 II Penggulungan Inti Trafo 20,09 20,16 20,10 20,16 20,07
III Penimbangan Berat Inti 5,42 5,36 5,40 5,48 5,39
IV Pemanggangan Inti 1440,00 1440,00 1440,00 1440,00 1440,00 V Pengujian Rugi-rugi Inti 10,41 10,33 10,30 10,62 10,21 VI Penggulungan Kumparan 100,85 100,55 100,51 100,58 100,70 VII Pemasangan Koneksi 119,05 119,19 118,74 119,05 119,02 VIII Pengeringan Trafo 2880,00 2880,00 2880,00 2880,00 2880,00
IX Pemasangan Terminal, Casing 16,62 16,37 16,52 16,77 16,52 X Pengujian Turn Ratio Test 51,66 51,43 51,62 51,35 51,71
XI Pengisian Minyak 20,32 20,10 20,12 20,25 20,17
XII Routing Test 20,47 20,38 20,34 20,37 20,49
XIII Finishing 4,32 4,19 4,07 4,19 4,17
Waktu Siklus Trafo 160 KVA, 3Ø di Setiap Proses
Work Center
Proses WaktuSiklus(menit)
1 2 3 4
I Pemotongan Silicon Steel 10,59 10,68 10,17 10,49 II Penggulungan Inti Trafo 22,38 22,62 22,33 22,18 III Penimbangan Berat Inti 5,61 5,90 5,57 5,59 IV Pemanggangan Inti 1440,00 1440,00 1440,00 1440,00
V Pengujian Rugi-rugi Inti 10,38 10,50 10,54 10,43 VI Penggulungan Kumparan 120,36 120,41 120,51 120,65 VII Pemasangan Koneksi 129,57 129,90 129,62 129,29 VIII Pengeringan Trafo 2880,00 2880,00 2880,00 2880,00
IX Pemasangan Terminal, Casing 16,35 16,61 16,24 16,77 X Pengujian Turn Ratio Test 51,47 51,49 51,71 51,43
XI Pengisian Minyak 20,07 20,34 20,17 20,27
XII Routing Test 20,23 20,47 20,39 20,28
XIII Finishing 4,14 4,27 4,31 4,39
Waktu Siklus Trafo 200 KVA, 3Ø di Setiap Proses
Work Center Proses WaktuSiklus(menit)
1 2 3 4 5 6
I Pemotongan Silicon Steel 10,63 10,73 10,57 10,30 10,03 10,14 II Penggulungan Inti Trafo 22,87 22,79 22,86 22,46 22,97 22,81
III Penimbangan Berat Inti 5,98 6,06 5,84 5,58 6,04 5,68
IV Pemanggangan Inti 1440,00 1440,00 1440,00 1440,00 1440,00 1440,00 V Pengujian Rugi-rugi Inti 10,38 10,71 10,37 10,53 10,57 10,40 VI Penggulungan Kumparan 120,75 120,94 120,73 120,82 120,76 121,06 VII Pemasangan Koneksi 129,64 129,74 129,91 130,09 129,69 130,03 VIII Pengeringan Trafo 2880,00 2880,00 2880,00 2880,00 2880,00 2880,00
IX Pemasangan Terminal, Casing 16,55 16,47 16,52 16,39 16,71 16,62 X Pengujian Turn Ratio Test 51,66 51,43 51,62 51,35 51,71 51,39
XI Pengisian Minyak 20,25 20,15 20,18 20,10 20,23 20,31
XII Routing Test 20,35 20,23 20,24 20,27 20,21 20,34
XIII Finishing 4,11 4,24 4,31 4,29 4,17 4,32
LAMPIRAN 5
Perhitungan Takt Time
1. Penggulungan Inti Trafo Bahan = Silicon Steel
Customer demand per month = 4 unit/hr x 15 kg/unit = 60 kg/hari
Uptime = 100% Scrap = 0%
Takt time =
=
= 4,29 menit/kg = 4,29 menit/unit
2. Penimbangan Berat Inti Bahan = Silicon Steel
Customer demand per month = 4 unit/bln x 15 kg/unit = 60 kg/hari
Uptime = 100% Scrap = 0%
Takt time =
=
= 4,29 menit/kg = 4,29 menit/unit
3. Pemanggangan Inti Bahan = Silicon Steel
Sekali memanggang tungku pemanggang memanggang inti silicon steel untuk 10 unit trafo.
Customer demand per month = 10 unit/hari x 15 kg/unit = 150 kg/hari
Uptime = 100% Scrap = 0%
Takt time =
=
= 9,6 menit/kg = 9,6 menit/unit
4. Pengujian Rugi-rugi Inti Bahan = Silicon Steel
Customer demand per month = 4 unit/hari x 15 kg/unit = 60 kg/hari
Uptime = 100% Scrap = 0%
Takt time =
=
= 4,29 menit/kg = 4,29 menit/unit
5. Penggulungan Kumparan a. Bahan = Silicon Steel
Customer demand per month = 2 unit/hari x 15 kg/unit = 60 kg/hari
Uptime = 100% Scrap = 0%
Takttime =
=
= 8,58 menit/kg = 8,58 menit/unit b. Bahan = Insulation Paper
Customer demand per month = 4 unit/bln x 0,5 kg/unit
= 2 kg/bln Uptime = 100% Scrap = 1%
Input =
=
= 2,02 kg/hari Takt time =
=
= 127,42 menit/kg = 127,42 menit/unit c. Bahan = Kawat Tembaga (Gulungan Sekunder) Customer demand per month = 4 unit/hari x 2 kg/unit
= 8 kg/hari
Uptime = 90% Scrap = 1%
Input =
=
= 8,08 kg/hari Takt time =
=
= 31,86 menit/kg = 31,86 menit/unit d. Bahan = Kawat Tembaga (Gulungan Primer) Customer demand per month = 4 unit/hari x 3 kg/unit
= 12 kg/hari Uptime = 90% Scrap = 1%
Input =
=
= 13,46 kg/hari Takt time =
=
= 19,12 menit/kg = 19,12 menit/unit
6. Pemasangan Koneksi a. Bahan = Silicon Steel
Customer demand per month = 4 unit/hari x 15 kg/unit
= 60 kg/hari Uptime = 100% Scrap = 0%
Takttime =
=
= 4,29 menit/kg = 4,29 menit/unit b. Bahan = Insulation Paper
Customer demand per month = 4 unit/hari x 0,5 kg/unit = 2 kg/hari
Uptime = 90% Scrap = 1%
Input =
=
= 2,24 kg/hari Takttime =
=
= 114,91 menit/kg = 114,91 menit/unit c. Bahan = Kawat Tembaga (Gulungan Skunder) Customer demand per month = 4 unit/hari x 2 kg/unit
= 8 kg/hari Uptime = 100% Scrap = 0%
Takttime =
= 32,175 menit/kg = 32,175 menit/unit d. Bahan = Kawat Tembaga (Gulungan Primer) Customer demand per month = 4 unit/hari x 3 kg/unit
= 12 kg/hari Uptime = 100% Scrap = 0%
Takt time =
=
= 21,45 menit/kg = 21,45 menit/unit
7. Pengeringan Trafo a. Bahan = Silicon Steel
Customer demand per month = 4 unit/hari x 15 kg/unit = 60 kg/hari
Uptime = 90% Scrap = 0%
Input =
=
= 66,6 kg/hari Takt time =
=
= 3,86 menit/kg = 3,86 menit/unit b. Bahan = Insulation Paper
Customer demand per month = 4 unit/hari x 0,5 kg/unit = 2 kg/hari
Uptime = 90% Scrap = 0%
Input =
=
= 2,22 kg/hari Takt time =
=
= 115,945 menit/kg = 115,945 menit/unit c. Bahan = Kawat Tembaga (Gulungan Skunder) Customer demand per month = 4 unit/hari x 2 kg/unit
= 8 kg/hari Uptime = 90% Scrap = 0%
Input =
=
= 8,88 kg/hari Takt time =
=
= 28,99 menit/kg
d. Bahan = Kawat Tembaga (Gulungan Primer)
= 12 kg/hari Uptime = 90% Scrap = 0 % Input =
=
= 13,34 kg/hari Takt time =
=
= 19,30 menit/kg
8. Pemasangan Terminal, Casing a. Bahan = Tap Changer
Customer demand per month = 4 unit/hari x 2 unit/unit = 8 unit/hari
Uptime = 90% Scrap = 0%
Input =
=
= 8,88 unit/hari Takt time =
=
= 28,99 menit/unit b. Bahan = Bushing Primer
Customer demand per month = 4 unit/hari x 1 unit/hari = 4 unit/bln
Uptime = 90% Scrap = 0%
Input =
=
= 4,44 unit/hari Takt time =
=
= 57,97 menit/unit c. Bahan = Bushing Sekunder
Customer demand per month = 4 unit/hari x 1 unit/hari = 4 unit/hari
Uptime = 100% Scrap = 0%
Takt time =
=
= 64,35 menit/unit 9. Pengujian Turn Ratio Test
Bahan : Transformator
Customer demand per month = 4 unit/hari x 1unit/hari = 4 unit/hari
Uptime = 100% Scrap = 0%
Takt time =
=
= 64,35 menit/unit
10. Pengisian Minyak Bahan : Minyak
Customer demand per month = 4 unit/hari x 15 liter/unit = 60 liter/hari
Uptime = 80% Scrap = 0%
Input =
=
= 75 liter/hari Takttime =
=
= 3,43 menit/liter = 51,45 menit/unit
11. Routing Test
Bahan : Transformator
Customer demand per month = 4 unit/hari x 1unit/hari = 4 unit/hari
Uptime = 100% Scrap = 0%
Takttime =
=
= 64,35 menit/unit
12. Finishing
Bahan :Name Plate
Customer demand per month = 4 unit/hari x 1unit/hari = 4 unit/hari
Uptime = 100% Scrap = 0%
Takttime =
=
= 64,35 menit/unit