Premium Membership

Get 15% OFF on Pro Premium Plan with discount code: UX21M. Study specialized electrical engineering articles and papers in Low- and High-Voltage areas.

Home / Technical Articles / Fundamental electrical schemes of connections for supply at generator voltage and higher

Power station layouts and loads

This technical article will shed some light on fundamental schemes and arrangements of connections for supply at generator voltage, higher than generated voltage, and a few basic transmission schemes. It is important to note that the choice of the electrical layout of the proposed power station is based on the conditions prevailing locally.

Fundamental electrical schemes of connections for supply at generator voltage and higher
Fundamental electrical schemes of connections for supply at generator voltage and higher

Engineers working on the power station design should consider the character of the load and the necessity for maintaining continuity of service. It should be as simple in the arrangement as practicable to secure the desired flexibility in operation and to provide the proper facilities for inspection of the apparatus.

A review of existing supply installations shows that the apparent combinations are innumerable, but analysis indicates that in general, they are combinations of a limited number of fundamental schemes. The arrangements vary from the simplest single-circuit scheme to the involved duplicate systems installed in big cities where the importance of maintaining continuity of service justifies a high capital expenditure.

It’s important to note that the scheme selected for power stations distributing power at bus voltage differs radically from the layout that would be desirable for a station designed for bulk transmission.

In some installations supplying underground cable systems in cities, segregated-phase layouts have been and are still employed to secure maximum reliability in operation. However, their use seems to be on the decline, as the improvement in performance over the conventional adjacent phase grouping is not sufficiently better to justify the extra cost. However, this statement depends from country to country.

This is particularly important in view of the continuing improvement of protective equipment and the more reliable schemes of relaying available today for removing faulty equipment, buses, or circuits.

Table of contents:

  1. Fundamental schemes of supply at generator voltage
  2. Fundamental schemes of supply higher than the generated voltage
  3. Fundamental schemes of transmission

PREMIUM Membership Required

This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan’s benefits and choose the membership plan that works best for you or your organization.

You can choose an annually based Plus, Pro, or Enterprise membership plan.

SPECIAL OFFER – Get 15% Off on PRO premium plan, use discount code: UX21M

Log InSign Up

Premium Membership

Get access to premium HV/MV/LV technical articles, electrical engineering guides, research studies and much more! It helps you to shape up your technical skills in your everyday life as an electrical engineer.
More Information

Edvard Csanyi

Electrical engineer, programmer and founder of EEP. Highly specialized for design of LV/MV switchgears and LV high power busbar trunking (<6300A) in power substations, commercial buildings and industry facilities. Professional in AutoCAD programming.

Leave a Comment

Tell us what you're thinking... we care about your opinion!

Electrical Engineering Courses

Learn to design electrical power and industrial automation systems through professional video courses.