Power Transmission Planning and Engineering
Transmission systems from 110 kV and above are planned,
designed and operated for bulk power transmission from large generating
stations to large load centers. A typical transmission project can take from
few months to few years to implement and must consider the following factors,
studies and aspects
-
Technical feasibility of various options
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Cost of options
-
Time
needed to implement different options and time frame needed for evacuation of
proposed generation to load centers
-
Environmental considerations
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Choice
of kV level
-
Type
of transmission AC/DC
-
Number
of circuits
-
Conductor
type
-
Transmission loss
-
Reactive
power support requirements
-
Reliability
-
Quality of power supply
-
Stability
aspects of the interconnected system
-
Operational
planning
-
Short circuit levels and breaker requirements
-
over voltages and control
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Insulation coordination at substations
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Substation arrangements at the end of line, including switching arrangements.
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Insulation requirements.
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Protection, monitoring, control and automation requirements
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Study of harmonics where needed [as in case of HVDC or when a terminating station is close to sources of harmonics]
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Basic and Detailed engineering related to transmission towers, routes, substations
Typically from long term energy demand forecasts, the peak
demand requirements in different geographical area is determined. Generations
are planned to meet these peak demand conditions. Various options for
transmissions are envisaged and evaluated using power system studies. Suitable
options that are technically and commercially feasible are chosen for the
implementation. Various engineering studies are performed towards
implementation of the project as listed.
Transmission switching Switch Yard/Substation Design
Power Evacuation Studies