TNB Integrated Learning Solution Sdn Bhd - ILSAS
33/11kV DISTRIBUTION POWER SYSTEM PROTECTION
INTRODUCTION TO TNB POWER SYSTEM
1
Sharul AmriDistribution
Ismail & Sahari
Abdullah
(Sep 2008)
33/11kV
Power
System
Protection For ST
DISTRIBUTION POWER SYSTEM
PROTECTION
Ir. Azizuddin
Zakaria 2833/11kV
Dec 2009
TNB Integrated Learning Solution Sdn Bhd - ILSAS
OBJECTIVE
At the end of the session, the participant
will be able to describe the TNB Power
System
2
Sharul AmriDistribution
Ismail & Sahari
Abdullah
(Sep 2008)
33/11kV
Power
System
Protection For ST
DISTRIBUTION POWER SYSTEM
PROTECTION
Ir. Azizuddin
Zakaria 2833/11kV
Dec 2009
TNB Integrated Learning Solution Sdn Bhd - ILSAS
CONTENT
1.
2.
3.
4.
5.
6.
Content:
TNB electrical system (Division)
Voltage level in TNB
TNB substation
- Definition
- Function
- Type of substation
Boundary of responsibility
System connectivity
Operation
3
Sharul AmriDistribution
Ismail & Sahari
Abdullah
(Sep 2008)
33/11kV
Power
System
Protection For ST
DISTRIBUTION POWER SYSTEM
PROTECTION
Ir. Azizuddin
Zakaria 2833/11kV
Dec 2009
TNB Integrated Learning Solution Sdn Bhd - ILSAS
TNB ELECTRICAL SYSTEM
3 Division
4
Sharul AmriDistribution
Ismail & Sahari
Abdullah
(Sep 2008)
33/11kV
Power
System
Protection For ST
DISTRIBUTION POWER SYSTEM
PROTECTION
Ir. Azizuddin
Zakaria 2833/11kV
Dec 2009
TNB Integrated Learning Solution Sdn Bhd - ILSAS
VOLTAGE LEVEL
Transmision
- 500kV
- 275kV
- 132kV
Distribution
- 33kV
- 22kV
- 11kV
- 415V
- 240V
5
Sharul AmriDistribution
Ismail & Sahari
Abdullah
(Sep 2008)
33/11kV
Power
System
Protection For ST
DISTRIBUTION POWER SYSTEM
PROTECTION
Ir. Azizuddin
Zakaria 2833/11kV
Dec 2009
TNB Integrated Learning Solution Sdn Bhd - ILSAS
TNB SUBSTATION
Definition
A place where electricity is being transform from
one voltage level to another level
6
Sharul AmriDistribution
Ismail & Sahari
Abdullah
(Sep 2008)
33/11kV
Power
System
Protection For ST
DISTRIBUTION POWER SYSTEM
PROTECTION
Ir. Azizuddin
Zakaria 2833/11kV
Dec 2009
TNB Integrated Learning Solution Sdn Bhd - ILSAS
TNB SUBSTATION
Function
- To receive, transform and distribute electric energy
- Place for switching activities and isolation of breakdown
component/system
- Function achieved by having power transformer, switchgears
and associated control system.
7
Sharul AmriDistribution
Ismail & Sahari
Abdullah
(Sep 2008)
33/11kV
Power
System
Protection For ST
DISTRIBUTION POWER SYSTEM
PROTECTION
Ir. Azizuddin
Zakaria 2833/11kV
Dec 2009
TNB Integrated Learning Solution Sdn Bhd - ILSAS
TNB SUBSTATION CATEGORY
Type Of Substation
1. Pencawang Masuk Utama (PMU)
- normally comprises of 275/132kV,132/33kV
and 132/11kV substation
- Place where TNBT and TNBD system are connected
- Power transformer capacity normally : 90MVA,
45MVA or 30MVA
- 110 Vdc
8
Sharul AmriDistribution
Ismail & Sahari
Abdullah
(Sep 2008)
33/11kV
Power
System
Protection For ST
DISTRIBUTION POWER SYSTEM
PROTECTION
Ir. Azizuddin
Zakaria 2833/11kV
Dec 2009
TNB Integrated Learning Solution Sdn Bhd - ILSAS
TNB SUBSTATION CATEGORY
Type Of Substation
2. Pencawang Pembahagian Utama (PPU)
- normally comprises of 33/11kV substation or
22/11kV
- Place where 33kV or 11kV system for every
district normally distribute
- Power transformer capacity normally : 30MVA,
15MVA, or 7.5MVA
- 110 Vdc
9
Sharul AmriDistribution
Ismail & Sahari
Abdullah
(Sep 2008)
33/11kV
Power
System
Protection For ST
DISTRIBUTION POWER SYSTEM
PROTECTION
Ir. Azizuddin
Zakaria 2833/11kV
Dec 2009
TNB Integrated Learning Solution Sdn Bhd - ILSAS
TNB SUBSTATION CATEGORY
Type Of Substation
3. Stesen Suis Utama (SSU)
- normally comprises of 33kV or 11kV switching
substation without any power transformer
- 110 Vdc or 30 Vdc
10
Sharul AmriDistribution
Ismail & Sahari
Abdullah
(Sep 2008)
33/11kV
Power
System
Protection For ST
DISTRIBUTION POWER SYSTEM
PROTECTION
Ir. Azizuddin
Zakaria 2833/11kV
Dec 2009
TNB Integrated Learning Solution Sdn Bhd - ILSAS
TNB SUBSTATION CATEGORY
Type Of Substation
4. Pencawang Elektrik (PE)
- distribute 11kV system
- transformer is normally 11/0.415 kV
- source for 415 V
11
Sharul AmriDistribution
Ismail & Sahari
Abdullah
(Sep 2008)
33/11kV
Power
System
Protection For ST
DISTRIBUTION POWER SYSTEM
PROTECTION
Ir. Azizuddin
Zakaria 2833/11kV
Dec 2009
TNB Integrated Learning Solution Sdn Bhd - ILSAS
BOUNDARY OF RESPONSIBILITY
Asset and Maintenance between TNBT and TNBD
132kV
TNBT
132/33kV
Or 132/11kV
ASSET
MAINTENANCE
33kV
Or 11kV
BC
Outgoing
BS
TNBD
12
Sharul AmriDistribution
Ismail & Sahari
Abdullah
(Sep 2008)
33/11kV
Power
System
Protection For ST
DISTRIBUTION POWER SYSTEM
PROTECTION
Ir. Azizuddin
Zakaria 2833/11kV
Dec 2009
TNB Integrated Learning Solution Sdn Bhd - ILSAS
SYSTEM CONNECTIVITY
Using Overhead Line or Underground Cable
Type of overhead conductor:
Insulated (ABC)
Bare
13
Sharul AmriDistribution
Ismail & Sahari
Abdullah
(Sep 2008)
33/11kV
Power
System
Protection For ST
DISTRIBUTION POWER SYSTEM
PROTECTION
Ir. Azizuddin
Zakaria 2833/11kV
Dec 2009
TNB Integrated Learning Solution Sdn Bhd - ILSAS
SYSTEM CONNECTIVITY
Example of 33KV cable and carrying capacity
- 185mm ABC (325 Amp)
- 150mm SILMALEC (327 Amp)
- 630mm XLPE (525 Amp)
14
Sharul AmriDistribution
Ismail & Sahari
Abdullah
(Sep 2008)
33/11kV
Power
System
Protection For ST
DISTRIBUTION POWER SYSTEM
PROTECTION
Ir. Azizuddin
Zakaria 2833/11kV
Dec 2009
TNB Integrated Learning Solution Sdn Bhd - ILSAS
SYSTEM CONNECTIVITY
Example of 11kV cable and carrying capacity
- 150mm ABC (290 Amp)
- 500mm XLPE (550 Amp)
- 300mm PILC (330 Amp)
15
Sharul AmriDistribution
Ismail & Sahari
Abdullah
(Sep 2008)
33/11kV
Power
System
Protection For ST
DISTRIBUTION POWER SYSTEM
PROTECTION
Ir. Azizuddin
Zakaria 2833/11kV
Dec 2009
TNB Integrated Learning Solution Sdn Bhd - ILSAS
OPERATION
For Transmission normally parallel system if system is below firm
For Distribution normally radial system
For power transformer, it can be operate independently or parallel
Type of network configuration
Radial system
PMU
PPU
PE
Loop system
Mesh system
16
Sharul AmriDistribution
Ismail & Sahari
Abdullah
(Sep 2008)
33/11kV
Power
System
Protection For ST
DISTRIBUTION POWER SYSTEM
PROTECTION
Ir. Azizuddin
Zakaria 2833/11kV
Dec 2009
TNB Integrated Learning Solution Sdn Bhd - ILSAS
THANK YOU
17
Sharul AmriDistribution
Ismail & Sahari
Abdullah
(Sep 2008)
33/11kV
Power
System
Protection For ST
DISTRIBUTION POWER SYSTEM
PROTECTION
Ir. Azizuddin
Zakaria 2833/11kV
Dec 2009
