Quantcast Details of Long Range System Planning

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(e) Review the contingency plans annually, in light of changing conditions. Update the
plan (map), as necessary.
(f) Prepare construction work plans, providing a construction program for the
installation of needed facilities, two years in advance. This program will be used for the
preparation of detailed construction plans and specifications. Details of Long Range System Planning. The following is required for detailed
(a) Up-to-date system map.
(b) Location of all major concentration loads.
(c) Results of voltage and current investigations.
(d) All pertinent data relative to existing and future loads.
(e) Power requirements study.
(f) Latest outage summary.
(g) Present transmission facilities.
(h) Availability of future power.
The first step is to analyze the existing system for system capacity relative to existing load and
system performance. This includes voltage levels, current balance, service reliability, energy
losses, and operating expenses. The analysis will be useful in identifying the weaknesses and
strengths of the existing system.
The second step is to project the long range load levels using an econometric forecasting method
(graphing load versus time) with at least five years of historical data. The forecasting will help
establish the growth pattern for the entire system and also the various segments of the system.
Having established and identified the growth areas, the third step is to impose the projected load
growths on the existing system to see if it will accommodate the growth. This step will indicate
any required changes. The possible changes, that may be required, are listed below.
(a) Increase existing substation capacity.
(b) Add new substations to the system and analyze the existing transmission grid.


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