Carina Grega Food Network Space Final Thesis Report Electrical Overview. Electrical Overview. Existing System Overview

Transcription

1 Electrical Overview Existing System Overview Chelsea Market is served by Consolidated Edison, the electric utility for most of New York City. The Food Network space is supplied by two separate radial systems from the landlord. One 1400A, 277/480V, 3 phase, 4 wire plus ground feeder serves distribution panel DP-6S on the sixth floor, which in turn feeds all the equipment on the 6th floor and mezzanine. Another feeder, 1200A, 277/480V, 3 phase, 4 wire plus ground, serves panel LP-3W on the 3rd floor, which feeds the 2nd and 3rd floor, including the UPS system on the second floor. LP-3W also feeds LP-B located in the basement, which feeds all the equipment on the basement and concourse level. On each floor, there are several electric closets, each serving a different area of the floor. All 277 and 480 volt loads are served from the LP panels in each area. The 120 and 208 volt loads are served via an RP panel which is served by the LP panel in the area via a 480V // 120/208V delta-wye dry type transformer. The transformer for the studio dimming system is K-13 rated. Please see the single line diagram and equipment list for further clarification and sizes for the equipment. There is no indication of a generator on the Food Network drawings. However, I would be surprised if there is no generator for Chelsea Market. Emergency lighting is through integral 90-minute battery packs/ballasts. There is a 100kVA UPS system with batteries and a harmonics filter. This serves all of the technical areas on the 2nd, 3rd, and 6th floors as well as the mezzanine. The UPS, technical grounding systems, studio dimming system and fire alarm system are all connected to the building class E system. Each panelboard has its own main circuit breaker for overcurrent protection. There are also heavy duty fused disconnect switches for the studio dimming system as well as for two existing A/C units on the 3rd floor. As there is

2 no motor control system, each piece of equipment has its own disconnect switch and/or motor starter. As there are no stacked core areas, feeding the wiring up to the spaces was a difficult task and thus the spaces do not have uniform areas where equipment is located. Nearly all equipment is located within electrical closets, and as noted above, these closets are located throughout the spaces and serve an area of the floor. The following table describes the panelboards and their branch circuits. Panel Location Voltage Main CB Bus Branch Circuits LP-2W 2 nd Floor West 277/ A 400A (8)20A 1P Lighting (2)20A 1P Electric Water Heaters (315A, (2)70A, (2)80A 3P Mechanical Eq. (1)115A 3P Panel RP-2W via transformer RP-2W 2 nd Floor West 120/ A 400A (8) 20A 1P Lighting (73)20A 1P Receptacles & Furniture Sys. (5)20A 1P Mechanical Eq. & Controls UDP 2 nd Floor IT Room 120/ A 400A (1)150A, (5)100A 3P TP panels TP-2A 2 nd Floor IT Room 120/ A 100A (16)20A 1P Equipment Racks/Consoles (4)20A 1P Receptacles TP-2B TP-2C TP-2D LP-3W RP-3W LP-3S RP-3S 2 nd Floor Equipment Room 2 nd Floor Equipment Room 2 nd Floor Equipment Room 3 rd Floor West 3 rd Floor West 3 rd Floor South 3 rd Floor South 120/ A 100A (12)20A 1P Equipment Racks/Consoles (7)20A 1P Receptacles (1)30A 2P NEMA 6-30R Receptacles 120/ A 100A (20)20A 1P Equipment Racks/Consoles (4)20A 1P Receptacles 120/ A 100A (14)20A 1P Equipment Racks/Consoles (4)20A 1P Receptacles 277/ A 1200 A (10)20A 1P Lighting (1)20A 1P Electric Water Heater (1)150A 3P UPS System (2)115A 3P Existing A/C Units via transformers (1)70A 3P Panel RP-3W via transformer (1)100A, (1)150A, (1)225A, (1)350A 3P Panels LP-B, LP-3E, LP-3S, and LP-2W 120/ A 225A (1) 20A 1P Lighting (63)20A 1P Receptacles & Furniture Sys. (2)20A 1P Mechanical Controls 277/ A 225A (8)20A 1P Lighting (1)20A 1P Dimming System Modules (1)15A 3P Electric Water Heater (1)30A, (1)40A, (1)80A 3P Mechanical (1)70A 3P Panel RP-3S via transformer 120/ A 225A (2) 20A 1P Lighting (2)20A 1P Dimming System Controller, Projector and Lift

3 LP-3E RP-3E TP-3E DP-6S LP-6E RP-6E LP-6K RP-6K LP-6M RP-6M TP-6M 3 rd Floor East 3 rd Floor East 3 rd Floor East 6 th Floor East 6 th Floor East 6 th Floor North 6 th Floor North North Video Control North Vestibule (57)20A 1P Receptacles & Furniture Sys. (4)20A 1P, (1)20A 2P Mechanical Eq. and Controls 277/ A 225A (4)20A 1P Lighting (1)30A, (1)75A 3P Mechanical Eq. (1)70A 3P Panel RP-3E via transformer 120/ A 100A (3) 20A 1P Lighting (37)20A 1P Receptacles & Furniture Sys. (1)20A 1P Mechanical Controls 120/ A 100A (14)20A 1P Receptacles & Furniture Sys. 277/ A 1600 A (1)20A 1P Lighting (2)150A, (1)225A, (1)800A 3P Panels LP-6M, LP-6E, LP-6K, and PP-6M (1)150A, (2)225A 3P Panels RP-STUDIO-A,B,C via transformers (1)600A 3P Dimming System via transformer 277/ A 225A (3)20A 1P Lighting (2)15A, (1)40A, (1)80A 3P Mechanical (1)45A 3P Panel RP-6E via transformer 120/ A 100A (1) 20A 1P Lighting (21)20A 1P Receptacles (2)20A 1P Mechanical Eq. & Controls 277/ A 225A (4)20A 1P Lighting (1)40A 3P Mechanical Equipment (1)25A 3P Kitchen Equipment (1)175A 3P Panel RP-6K via transformer 120/ A 400A (9)20A 1P Lighting (35)20A 1P Receptacles (6)20A 1P, (2) 30A 2P Mechanical Eq. (38)20A 1P, (1)40, (3)60, (1)70 2P, (1)20A, (1)80A 3P Kitchen Equipment 277/ A 225A (5)20A 1P Lighting (1)15A 3P Electric Water Heater (1)15A, (1)40A 3P Mechanical Eq. (1)45A 3P Panel RP-6M via transformer 120/ A 100A (3) 20A 1P Lighting (19)20A 1P Receptacles (1)20A 1P, (1)20A 2P Mechanical Eq. 120/ A 225A (76)20A 1P Equipment Racks/Consoles (15)20A 1P Receptacles PP-6M 277/ A 800A (3)15A, (1)45A, (2)50A, (1)100A, (1)125A, (2)250A 3P Mechanical Equipment RP- 120/ A 225A (4)20A 1P Receptacles STUDI O-A (1)50A 2P NEMA 6-50R Receptacles RP- 120/ A 225A (6)20A 1P Receptacles STUDI O-B (1)50A 2P NEMA 6-50R Receptacles (1)50A 2P NEMA 6-60R Receptacles RP- 120/ A 225A (10)20A 1P Receptacles

4 STUDI O-C LP-B RP-B Basement Storage Area Basement Storage Area (1)50A 2P NEMA 6-50R Receptacles 277/ A 100A (1)45A 3P Panel RP-B via transformer (1)20A 3P Concourse Lighting (1)20A 1P Electric Water Heater (1)15A, (1)30A 3P Mechanical Eq. 120/ A 100A (3)20A 1P Basement Lighting (7)20A 1P Basement Receptacles (4)20A 1P Concourse Receptacles (2)20A 1P Mechanical Controls & Eq. All panelboards except RP-STUDIO panels are 3 phase, 4 wire. RP- STUDIO panels are 1 phase, 3 wire. All panelboards except TP and UDP have ground bus bars. The TP panels and UDP have an isolated ground and an equipment ground bus bar. Lighting in the spaces is primarily 277V Fluorescent, but there are some areas where halogen, incandescent, and LED fixtures are used. Other areas such as the kitchen use all 120V fixtures. The kitchen is tied into the studio dimming system. This dimming system allows for the vast amount of flexibility needed in the studio area as well as the kitchen. There are no capacitors for power factor correction in the Food Network space. The main design situations were dealing with the haphazard way that feeders must rise up to the floors as well as supplying the UPS system for technical areas as noted above. The 3rd floor feeder comes from the basement and feeds down to the second floor, which feeds down to the basement and then back up to the concourse. This may seem disorganized, but it occurred this way because the spaces were designed as three separate projects. First, floors 2, 3, 6, and the mezzanine were designed, then the basement, and lastly the concourse. Please see existing riser for more information

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6 Impact due to Lighting Redesign Open Office Area 277V LP-3E V RP-3E Boardroom 277V LP-3S V RP-3S Dining/Kitchen Area 277V LP-6K V Studio Dimming System Audience Holding Area 277V LP-B V RP-B None of the changes in wattage are enough to impact the sizing of any electrical distribution equipment