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Electrical Power Distribution

Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

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Page 1: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Electrical Power Distribution

Page 2: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Forms of Energy

All forms of energy fall under two categories

POTENTIALStored energy or energy

of position(gravitational)

KINETICEnergy of motion (motion of waves,

electrons, atoms, molecules, and substances)

Page 3: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Work Power

Electrical Power is measured in Watts (W) or kWatts (kW)

W = joule per second

Work is done when a force that is applied to an object moves that object. The work is calculated by multiplying the force by the amount of movement of an object (W = F * d).

Page 4: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Power Generation

Page 5: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Power Transmission Lines

Page 6: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Power Generation and Transmission

Page 7: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Electrical Systems Incoming Service - Power Switchgear / Distribution Equipment Feeders Grounding Motor Br. Branch/Equip. Connect Emergency Generators / ATS / UPS Lighting Fixtures / Lighting Control Devices - Lighting Devices - Power Lighting Branch Power Branch Fire Alarm System Site Lighting Telephone / Data Conduit Incoming Service - Telephone

Page 8: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Electrical Terms

Utility Power XFMR Switchboard Panelboard Motor Control Center Disconnect Switch Transformer Circuit Breaker Feeder One-Line Diagram Equipment Connection

Branch Circuit Homerun Receptacle Switch Automatic Transfer Switch Generator UPS

Page 9: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Electrical Symbols

Page 10: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

10

Service equipment is the electrical equipment that constitutes the main control and means of power cutoff to the electric service (normally Power Company supply) brought into the building.

Service Equipment

Page 11: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

11

All buildings have an electrical service.

Primary service (utility company) is shown on the one-line diagram.

A utility transformer is installed outside the building on a pad (site drawing) or pole.

Incoming Service - Power

Page 12: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

12

Incoming Service - Power

Page 13: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

13

Incoming Service - Power

Page 14: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

14

Common Electrical Distribution Systems

Page 15: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Common Electrical Distribution Systems

Page 16: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Common Electrical Distribution Systems

Page 17: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Common Electrical Distribution Systems

Page 18: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Common Electrical Distribution Systems

Page 19: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Common Electrical Distribution Systems

1φ2W, 240 Vac1φ3W, 120/240 Vac3φ3W, 240 Vac3φ3W, 240 Vac corner ground delta3φ4W, 208Y/120 Vac 120 x 3 = 208 V3φ4W, 480Y/277 Vac 277 x 3 = 480 V3φ3W, 480 Vac3φ4W, 600Y/347 Vac3φ3W, 600 Vac2W, 250 Vdc3W, 125/250 Vdc

Page 20: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Residential Power Distribution

Page 21: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Commercial and Industrial Power Distribution

Page 22: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Utility Primary Transformer

Page 23: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

23

In-Coming Service - Power

Page 24: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

24Carp

en

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8 FeedersIncoming Service – power feeders

Page 25: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

One-Line Diagram

Page 26: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)
Page 27: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)
Page 28: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Power Distribution System Equipment

Page 29: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Power Distribution System Equipment

Page 30: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

30

Switchboard

Page 31: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Main Distribution Board (MDB)

Page 32: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

32

Main Distribution Board (MDB)

Page 33: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Main Switchboard (MSB)

Page 34: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Incoming Section

Meter Main Section

Distribution SectionCircuit BreakersFusible Switches

Grounding

Bonding

Switchboard

Page 35: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Incoming Section

Meter Main Section

Distribution SectionCircuit BreakersFusible Switches

Grounding

Bonding

Switchboard

Page 36: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Incoming Section

Meter Main Section

Distribution SectionCircuit BreakersFusible Switches

Grounding

Bonding

In-Coming Service - Power

Page 37: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Incoming Section

Meter Main Section

Distribution SectionCircuit BreakersFusible Switches

Grounding

Bonding

Switchboard

Page 38: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Incoming Section

Meter Main Section

Distribution SectionCircuit BreakersFusible Switches

Grounding

Bonding

Switchboard

Page 39: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Incoming Section

Meter Main Section

Distribution SectionCircuit BreakersFusible Switches

Grounding

Bonding

Switchboard

Page 40: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Incoming Section

Meter Main Section

Distribution SectionCircuit BreakersFusible Switches

Grounding

Bonding

Switchboard

Page 41: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Incoming Section

Meter Main Section

Distribution SectionCircuit BreakersFusible Switches

Grounding

Bonding

Switchboard

Page 42: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

42

Panelboard

Page 43: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

43

Panelboard

Page 44: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

44

Panelboard

Primary Transformer

[480/277V 3ϕ 4W]

Power Panelboard

PanelboardsLighting, appliances, motor/equip

Step-Down Transformer

[120/208V 3ϕ 4W]

Main BreakerEnclosed

Disconnect

Page 45: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

45

Panelboard

Page 46: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Motor Control Center (MCC)

Page 47: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Safety Switch - Disconnect Switch

Fusible or Non Fusible250V or 600V2 Pole or 3 Pole30A60A100A200A400A600A800A1200A

Page 48: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Disconnect Switch

4 & 6-Pole Heavy Duty Safety Switches

Two-speed, two-winding motors

4-pole switches are also used in 3-phase, 4-wire circuits when a switching neutral is required.

Page 49: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

49

http://runonsun.com/~runons5/blogs/blog1.php/non-profit-solar/westridgepac/solar-at-westridge-part-1
http://runonsun.com/~runons5/blogs/blog1.php/non-profit-solar/westridgepac/solar-at-westridge-part-1
Page 50: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Disconnect Switch

Page 51: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Five Guys Burgers and Fries

Page 52: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

Atlantic Food Company Example

Page 53: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

E-6 One-Line Diagram/Switchboard Detail

Page 54: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

E-7 Electrical Riser Diagram

Page 55: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

E-5 Electrical Schedules

Page 56: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

North State ElectricCompany Information

Page 57: Electrical Power Distribution. Forms of Energy All forms of energy fall under two categories POTENTIAL Stored energy or energy of position (gravitational)

North State ElectricEstimating Procedures

Take Off Color Code

Estimate Setup Package

Forms:PricingTake Off SheetFeeder Take Off SheetMotor / Equip Branch Take Off SheetRFQ


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