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MAJURO ATOLL DISTRIBUTION SYSTEM
POWER SOURCE: | 13800kVA & 4160kVA |
SECONDARY POWER: | 120/208 Volt 60Hz |
HOURS OF OPERATION: | 24 hours, 7 days a week. |
DISTRIBUTION TRANSFORMER: |
280 Pole mount
(15 - 75kVA) 117 Pad-mount (15 - 1000kVA) |
DISTRIBUTION SYSTEM: | Overhead and Underground. |
FEEDER ONE: | Total run 146,885ft (27.81 miles) |
TOWN FEEDER ONE: | Total run 15,894ft (3.01 miles) |
FEEDER TWO: | Total run 16,110ft (3.05 miles) |
TOWN FEEDER TWO: |
Total run 3,855ft (0.731 miles) |
FEEDER THREE: | Total run 7,160ft (1.356 miles) |
Primary Pole Assets (Pole mounted transformers are listed separately below.)
Item Description |
Quantity |
Primary poles |
266 |
Single Cross Arms |
357 |
Double Cross Arms |
159 |
HV Ball Pin Insulators |
891 |
HV Dead End Insulators |
493 |
Single LV Insulators |
685 |
3 Rack Mounted LV Insulators |
85 |
4 Rack Mounted LV Insulators |
283 |
HV Cutouts |
511 |
Surge Arrestors (separate from arrestors included on transformers) |
129 |
Down Guys |
98 |
Stub Guys |
7 |
Sidewalk Guys |
3 |
Pole Braces |
6 |
3" HV Weather heads |
26 |
4" HV Weather heads |
42 |
5" HV Weather heads |
2 |
6" HV Weather heads |
4 |
1 ¼" LV Weather heads |
20 |
1 ¼" LV Weather heads |
10 |
2" LV Weather heads |
91 |
3" LV Weather heads |
17 |
4" LV Weather heads |
11 |
HV Shrink Terminators |
157 |
13.8KV Pole Mounted Transformer (Single Phase)
Location |
Rating, kVA |
||||
15 | 25 | 37.5 | 50 | 75 | |
Feeder 1 |
2 |
21 |
37 |
19 |
7 |
Feeder 2 |
3 |
3 |
25 |
51 |
11 |
Total |
5 |
24 |
62 |
70 |
18 |
4160V Pole Mounted Transformers (Single Phase)
Location |
Rating, kVA |
||||
15 | 25 | 37.5 | 50 | 75 | |
TF1 | 1 | 9 | 28 | 27 | 10 |
TF2 | 0 | 0 | 0 | 0 | 0 |
LAURA | 1 | 22 | 7 | 4 | 3 |
Total |
1 | 22 | 36 | 32 | 13 |
Secondary Pole Assets
Item Description |
Quantity |
Secondary poles |
760 |
Single LV insulators |
1183 |
3 Rack Mounted LV insulators |
153 |
4 Rack Mounted LV insulators |
5 |
Down Guys |
17 |
Stub Guys |
0 |
Sidewalk Guys |
1 |
Pole Braces |
0 |
1 ¼" LV Weatherheads |
87 |
1 ½" LV Weatherheads |
25 |
2" LV Weatherheads |
184 |
3" LV Weatherheads |
7 |
4" LV Weatherheads |
1 |
13.8 KV Padmount Transformers
Location |
Rating, kVA |
|||||||||||||||
15 | 25 | 30 | 37.5 | 45 | 50 | 75 | 112.5 | 125 | 150 | 200 | 225 | 300 | 500 | 750 | 1000 | |
Fdr 1 | 0 | 0 | 0 | 1 | 1 | 29 | 13 | 3 | 0 | 2 |
1 |
3 |
5 | 3 | 1 | 2 |
Fdr 2 | 0 | 1 | 1 | 0 | 3 | 1 | 3 | 2 | 0 | 2 | 0 |
1 |
10 | 5 | 0 | 1 |
Fdr 3 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 1 | 0 | 0 | 3 | 1 | 2 | 1 |
TF2 U/G | 0 | 0 | 0 | 0 | 0 | 1 | 9 | 0 | 0 | 2 | 0 |
1 |
0 | 1 | 0 | 0 |
Total |
0 | 1 | 1 | 1 | 4 | 32 | 27 | 5 | 0 | 7 |
1 |
5 |
18 | 10 | 3 | 4 |
4160V Padmount Transformers
Location |
Rating, kVA |
||||||||||||||
15 | 25 | 30 | 37.5 | 45 | 50 | 75 | 112.5 | 125 | 150 | 225 | 300 | 500 | 750 | 1000 | |
Ejit | 0 | 0 | 0 | 0 | 0 | 4 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
TF 1 | 0 | 0 | 2 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 3 | 0 | 0 | 0 | 0 |
TF2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Laura | 8 | 1 | 0 | 0 | 0 | 12 | 4 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 |
Total |
8 | 1 | 2 | 0 | 0 | 17 | 6 | 1 | 0 | 2 | 4 | 2 | 0 | 0 | 0 |
13.8KV/ 4160V Padmount Substation Transformers
Location |
Quantity |
Rating, kVA |
Jenrok Substation |
1 |
3150 |
Uliga Substation |
0 |
0 |
Laura Substation |
1 |
1500 |
Total |
2 |
HV Circuit Breakers (VCBS and OCBS)
Location |
Type |
Voltage Rating |
Quantity |
Laura |
VCB |
4160V |
1 |
Airport Substation |
VCB |
13.8KV |
1 |
Kessai Switching Station |
VCB |
13.8KV |
1 |
Momotoro Switching Station |
VCB |
13.8KV |
1 |
Uliga Substation |
VCB |
13.8KV |
1 |
Jenrok Substation |
VCB |
4160V |
1 |
MIHS Switching Station |
VCB |
4160V |
1 |
Total |
7 |
Padmount Switches
Location |
Voltage Rating |
Quantity |
Feeder 1 |
13.8KV |
35 |
Feeder 2 |
13.8KV |
7 |
Feeder 3 |
13.8KV |
7 |
Town Feeder 2 UG |
13.8KV |
5 |
Total |
54 |
Conductors
Description |
Quantity |
Total # 2/0 AWG
Bare Copper Conductor (includes overhead phase Conductors and overhead and direct buried neutral) |
409,739 LF |
Total # 2/0 AWG
XLP Shielded Insulated Conductor (direct buried XLP Insulation rated at 15KV) |
447,792 LF |
#2 AWG Triplex Cable (two 600V insulated and one bare neutral) |
163,707 LF |
#4 AWG Triplex Cable (two 600V insulated and one bare neutral |
209,486 LF |
#6 AWG Triplex Cable (two 600V insulated and one bare neutral |
150,890 LF |
#2 Insulated, Single Conductor (insulation rated at 600V) |
55,216 LF |
#4 Insulated, Single Conductor (insulation rated at 600V) |
74,174 LF |
#6 Insulated, Single Conductor (insulation rated at 600V) |
53,100 LF |
#6 Bare copper (pole grounding conductor and oil) |
14,500 LF |
PVC Conduit (Schedule 40)
Size |
Quantity |
1 ¼" |
14,600 LF |
1 ½" |
4,400 LF |
2" |
38,000 LF |
3" |
3, 800 LF |
4" |
15,700 LF |
5" |
100 LF |
6" |
200 LF |
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