What is power transmission? Basic structure of electric system Generation, transmission, distribution, electricity in Pakistan (NTDC) Pakistan Transmission lines in Pakistan Transmission pole design Power transmission losses

1. POWER SYSTEM IN PAKISTAN
PRESENTATION BY
MUHAMMAD USAMA
INSTRUCTOR & SUBJECT
SHUAIB KAKA | BASIC MECHANICALTECHNOLOGY
B-TECH ELECTRICAL SECOND SEMISTER

2. POWERTRANSMISSION
Content
 What is power transmission?
 Basic structure of electric system
 Generation, transmission, distribution, electricity in Pakistan
 (NTDC) Pakistan
Transmission lines in Pakistan
Transmission pole design
 Power transmission losses

3. POWERTRANSMISSION
• Electric power transmission is the bulk movement of electrical energy
from a generating site, such as a power plant, to an electrical
substation. The interconnected lines which facilitate this movement
are known as a transmission network. This is distinct from the local
wiring between high-voltage substations and customers, which is
typically referred to as electric power distribution.

4. POWERTRANSMISSION

5. ELECTRICITY IN PAKISTAN IS GENERATED,
TRANSMITTED, DISTRIBUTED
Electricity in Pakistan is generated,
transmitted, distributed, and retail supplied
by two vertically integrated public sector
utilities: Water and Power Development
Authority (WAPDA) for all of Pakistan
(except Karachi), and the Karachi Electric
(K-Electric) for the city of Karachi and its
surrounding areas.There are around 42
independent power producers (IPPs) that
contribute significantly in electricity
generation in Pakistan.

6. POWERTRANSMISSION
NATIONAL TRANSMISSION & DESPATCH COMPANY (NTDC) PAKISTAN
There 12436 km transmission line of 500KV,220 KV
transmission line in Pakistan.
NTDC operates and maintains fourteen 500 KV and thirty eight
220 KV Grid Stations, 5110.48 km of 500 KV transmission line and
9686.32 km of 220 KV transmission line in Pakistan.

7. POWER TRANSMISSION
 The three-phase system has three sets of phase conductors.
 There 5077 km of 500 KV transmission line in Pakistan.
 There are Thirty Two 220 KV Grid Stations.
 Total length is 7359 km of 220 KV transmission line in
Pakistan.

8. PowerTransmission
• Transmission Pole Design

9. POWERTRANSMISSION LOSSES
The safe and reliable transmission and distribution of electricity
remains a major problem in Pakistan.
There are following main causes of loss
 Poor conductor material
 Weak grid infrastructure and substantial
 Theft of electricity
 Low time to time maintenance of network
 Resistive losses

10. END OF PRESENTATION
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