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Electrical
Distribution
ABB Competition
Team Members
Sahar Ahmed
Shrifa Hany
Radwa Ahmed
Team
Members
Karim Ashraf
Mahmoud Reda
Ahmed Abdelsalam
Content
Content
Conceptual Design
- Zoning
- Load Estimation
Conceptual
Design
- Bulk Equipment
- SLD
Schematic Design
- Lighting Design
- Power Design
Schematic
Design
- Wiring
- Panel Schedule
Detailed Design
- Cable Sizing
- Voltage Drop Calculation
Detailed
Design
- ABB e-Design
- C.B
- Earthing System
Conceptual
Design
Why zoning?
SMDB
LDB
PDB
EDB
Zoning
B-Type
C-Type
D-Type
Load Estimation
Load
Estimation
1.
Overall method
2.
Load breakdown
Exact method
3.
Overall Load Estimation
Total connected load (overall) = Power density * Build up area
- Build up area = Foot print area * No. of floors
Total demand load (Electrical) = TCL * Demand Factor
Total require load (overall)
=
[Total demand load(Electrical)+mechanical+elevator+ light current]
*
Diversity factor
Load Breakdown
- According to IEEE242
Demand load (light) = TCL(Light) *D.F
Demand load (lsocket) = TCL(socket) *D.F
Demand load (each floor) = D.L (Light) + D.L (Socket)
Demand load (Electrical) = D.L (G.F + F.F + S.F)
D.L (Total) =[D.L (Electrical) + HVAC + Mech + LC]
*
DF
SLD
Sizing bulk equipment
&
their rooms
Bulk
Equipment
1.
Transformer
2.
RMU
3.
Generator
4.
UPS
Transformer
Types of transformers
Dry type
Oil Type
90%
80%
Utilization
factor
Transformer room
RMU
RMU TYPES
- AIS
- GIS
RMU CONFIGURATIONS
- (2+1)
- (2+2)
- (3+1)
RMU room
Generator
Types of Generators
1- Prime Generator
2- Standby Generator
3- Continuous Generator
Generator room
UPS
Offline
Online
Hybrid
Isolating transformer
UPS room
Schematic
Design
Lighting Design
Lighting
Design
1- Types of lighting
2- Types of lamps
3- Types of ceiling
4- Control lighting
5- Calculating methods
Types of Lighting
- Indoor lighting
- Outdoor lighting
Types of lamps
- Filament lamps
- Gas discharge lamps
- LED lamps
Types of ceilings
Surface
mounted
Tiles
Gypsum board
Recessed
mounted
Metal strips
Suspended mounted
- Convential Swiches
- KNX
Calculating Method
- Manual
- Dialux
Power
Design
Power Design
Types of Sockets
Sockets
- Normal sockets
- Power sockets
- Industrial sockets
Normal sockets
(10A,13A,16A)
Single
Duplex
Power Sockets
(16A,25A,32A)
Industrial sockets
(25A-->125A)
Wiring of lighting
- Normal
- Emergency
- Life safety
10 * 100W = 10000W
CB = 16 A ,Cable = 3 mm^2
Wiring of sockets
Wiring
6* 200W = 12000W
CB = 20 A ,Cable = 4 mm^2
Normal
Panel
Schedule
Detailed
Design
Cable
Sizing
Calculation
( Load Current, C.B Current, Cable Current)
How to Size Neutral and Protective earth (PE) Cables
Catalogue El- Sewedy
Calculating Method
- Manual
- Software
Voltage
Drop
Calculation
1- ETAP
2- ABB e-Design
Single line diagram by ABB e-design (DOC software)
ABB
e- design
Types of CB
C.B
Miniture circuit breaker
- MCB system pro M compact
- MCB system pro M compact high performance
Molded case Circuit breaker
- MCCB Tmax T
- MCCB Tmax XT
Air Circuit Breaker
ACB Emax 2
What is earthing?
Earthing
System
Why earthing?
Classification of low voltage system
1- TT
2- TN (TN-S, TN-C,TN-C-S)
3- IT
TT
TN
IT
Earthing System
by
Excel Sheet
Thanks