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(

#

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2

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(

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WOOD IS

LAND S

UBSTATION [2

] INTERTIE

(15W

1-13

) HARBORSIDE SUBSTATION INTERTIE (15A2-7)HARBORSIDE S

UBSTATION IN

TERTIE (1

5A1-

7)

DRAW-OUT CIRCUIT BREAKER

DRAW-OUT FUSES

CABLE CONNECTION

POTENTIAL TRANSFORMER

CURRENT TRANSFORMER

VOLTAGE TRANSFORMER

NORMALLY OPEN

NORMALLY CLOSED

DRAW-OUT CIRCUIT BREAKER,

NORMALLY CLOSED

DRAW-OUT FUSES AND

POTENTIAL TRANSFORMERS

SUBSTATION & ASSOCIATED

FEEDER COLOR CODES

WOOD ISLAND SUB. 486

PORTER STREET SUB. 308

BIRD ISLAND FLATS SUB. 592

HARBORSIDE SUB. 152

UTILITY FEEDER

BIRD ISLAND FLATSSUBSTATION(BUILDING 67)

WARNING!

This one line diagram has been prepared based on the latest available information from

as-built drawings and visual field survey, updated and revised as marked. The accuracy

and completeness of the information are not guaranteed or represented as correct.

Actual field verification is required and all safety measures must be taken prior to

operations and/or maintenance work. Only authorized personnel are allowed access to

this equipment.

This plan is intended for informational purposes only and no use shall be made of the

same without the express written permission of the Massachusetts Port Authority

("Massport").

LEGEND

ELECTRICAL DISTRIBUTION SYSTEMONE LINE DIAGRAMS

CAPITAL PROGRAMS DEPARTMENT

4 105

15AE1-3

S1L-02

REVISION DATE: 12/23/16

MASSACHUSETTS PORT AUTHORITYLOGAN INTERNATIONAL AIRPORTEAST BOSTON, MA

BUILDING NUMBER

SET# 23BIRD ISLAND FLATS SUBSTATION(BUILDING 67)

ONE LINE DIAGRAM

B.I.F. SUBSTATION [67] INTERTIE (15B1-8)

PORTER ST. SUBSTATION [41] INTERTIE #1 (15P1-7)

UTILITY INCOMING

(#486-199H)

UTILITY INCOMING

(#486-198)

PORTER ST. SUBSTATION [41] INTERTIE #2 (15P2-6)

*

*

DRAW-OUT CIRCUIT BREAKER

DRAW-OUT FUSES

POTENTIAL TRANSFORMER

CURRENT TRANSFORMER

VOLTAGE TRANSFORMER

NORMALLY OPEN

NORMALLY CLOSED

DRAW-OUT CIRCUIT BREAKER,

NORMALLY CLOSED

DRAW-OUT FUSES AND

POTENTIAL TRANSFORMERS

WOOD ISLAND SUBSTATION (486)ONE LINE DIAGRAM

SUBSTATION & ASSOCIATED

FEEDER COLOR CODES

WOOD ISLAND SUB. 486

PORTER STREET SUB. 308

BIRD ISLAND FLATS SUB. 592

HARBORSIDE SUB. 152

UTILITY FEEDER

WARNING!

This one line diagram has been prepared based on the latest available

information from as-built drawings and visual field survey, updated and

revised as marked. The accuracy and completeness of the information are

not guaranteed or represented as correct. Actual field verification is

required and all safety measures must be taken prior to operations and/or

maintenance work. Only authorized personnel are allowed access to this

equipment.

This plan is intended for informational purposes only and no use shall be

made of the same without the express written permission of the

Massachusetts Port Authority ("Massport").

LEGEND

WOOD ISLANDSUBSTATION (486)

ELECTRICAL DISTRIBUTION SYSTEMONE LINE DIAGRAMS

CAPITAL PROGRAMS DEPARTMENT

5 105

15AE1-3

S1L-03

REVISION DATE: 12/23/16

MASSACHUSETTS PORT AUTHORITYLOGAN INTERNATIONAL AIRPORTEAST BOSTON, MA

BUILDING NUMBER

PREFERRED FEEDER

*

SET# 23

WOOD ISLAND SUBSTATION [2] INTERTIE (15W2-8)

UTILITY

INCOMING

(#308-54)

WOOD ISLAND SUBSTATION [2] INTERTIE (15W1-2)

UTILITY

INCOMING

(#308-197)

HARBORSIDE SUBSTATION INTERTIE (15A1-2)

HARBORSIDE SUBSTATION INTERTIE (15A2-2)

*

DRAW-OUT CIRCUIT BREAKER

DRAW-OUT FUSES

POTENTIAL TRANSFORMER

CURRENT TRANSFORMER

VOLTAGE TRANSFORMER

NORMALLY OPEN

NORMALLY CLOSED

DRAW-OUT CIRCUIT BREAKER,

NORMALLY CLOSED

DRAW-OUT FUSES AND

POTENTIAL TRANSFORMERS

SUBSTATION & ASSOCIATED

FEEDER COLOR CODES

WOOD ISLAND SUB. 486

PORTER STREET SUB. 308

BIRD ISLAND FLATS SUB. 592

HARBORSIDE SUB. 152

UTILITY FEEDER

PORTER STREETSUBSTATION (308)

WARNING!

This one line diagram has been prepared based on the latest available

information from as-built drawings and visual field survey, updated and

revised as marked. The accuracy and completeness of the information are

not guaranteed or represented as correct. Actual field verification is

required and all safety measures must be taken prior to operations and/or

maintenance work. Only authorized personnel are allowed access to this

equipment.

This plan is intended for informational purposes only and no use shall be

made of the same without the express written permission of the

Massachusetts Port Authority ("Massport").

LEGEND

ELECTRICAL DISTRIBUTION SYSTEMONE LINE DIAGRAMS

CAPITAL PROGRAMS DEPARTMENT

6 105

15AE1-3

S1L-04

REVISION DATE: 12/23/16

MASSACHUSETTS PORT AUTHORITYLOGAN INTERNATIONAL AIRPORTEAST BOSTON, MA

BUILDING NUMBER

PREFERRED FEEDER

*

SET# 23PORTER STREET SUBSTATION (308)ONE LINE DIAGRAM

B

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A

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(

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*

*

*

DRAW-OUT CIRCUIT BREAKER

DRAW-OUT FUSES

POTENTIAL TRANSFORMER

CONTROL POTENTIAL TRANSFORMER

VOLTAGE TRANSFORMER

NORMALLY OPEN

NORMALLY CLOSED

DRAW-OUT CIRCUIT BREAKER,

NORMALLY CLOSED

DRAW-OUT FUSES AND

POTENTIAL TRANSFORMERS

SUBSTATION & ASSOCIATED

FEEDER COLOR CODES

WOOD ISLAND SUB. 486

PORTER STREET SUB. 308

BIRD ISLAND FLATS SUB. 592

HARBORSIDE SUB. 152

UTILITY FEEDER

HARBORSIDESUBSTATION (152)

WARNING!

This one line diagram has been prepared based on the latest available

information from as-built drawings and visual field survey, updated and

revised as marked. The accuracy and completeness of the information are

not guaranteed or represented as correct. Actual field verification is

required and all safety measures must be taken prior to operations and/or

maintenance work. Only authorized personnel are allowed access to this

equipment.

This plan is intended for informational purposes only and no use shall be

made of the same without the express written permission of the

Massachusetts Port Authority ("Massport").

LEGEND

ELECTRICAL DISTRIBUTION SYSTEMONE LINE DIAGRAMS

CAPITAL PROGRAMS DEPARTMENT

7 105

15AE1-3

S1L-05

REVISION DATE: 10/14/15

MASSACHUSETTS PORT AUTHORITYLOGAN INTERNATIONAL AIRPORTEAST BOSTON, MA

SET# 23HARBORSIDE SUBSTATION (152)ONE LINE DIAGRAM