Premium Membership ♕

Save 50% on all EEP Academy courses with Enterprise Membership Plan and study specialized LV/MV/HV technical articles & guides.

Home / Premium Content / Advanced Electrical Engineering Guides / Design And Analysis of Low Voltage Power Systems

Voltage Drop Calculations

Cables and lines are the most important part of a system during planning and configuring. They must be able to withstand the mechanical and thermal stresses and transfer the power from connected equipment with as little loss as possible.

Design And Analysis of Low Voltage Power Systems
Design And Analysis of Low Voltage Power Systems

This requires the careful dimensioning of the electrical networks. Nowdays systems and household appliances are matched to the nominal voltage of the network. This may fluctuate only within established limits, since otherwise a normal power output cannot be ensured and the equipment can be destroyed.

This section discusses the voltage drop and the maximum line length for AC and three-phase networks, on the basis of the existing regulations and standards.

Voltage Regulation

Cables and lines are the means of transfer which enables the transport and distribution of electrical energy, predominantly by way of AC and three-phase current. When an electrical current flows through a cable or a line, heat is generated and is defined according to:

P = I2R.

The amount of heat generated over a defined period of time is given by Q = I2 R t. This heat loss must be dissipated before the insulation is destroyed. The line resistance in a network is always assumed to be at 20°C.

Premium Membership Required

This technical article/guide requires a Premium Membership. You can choose an annually based Plus, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers. With EEP’s premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.

Check out each plan’s benefits and choose the membership plan that works best for you or your organization.

Good To Know!Save 50% on all video courses by purchasing Enterprise plan.

Log In »Purchase »

Premium Membership

Get access to premium HV/MV/LV technical articles, advanced electrical engineering guides, papers, and much more! It will help you to shape up your technical skills in your everyday life as an electrical engineer.
50% Discount 💥 - Save 50% on all 90+ video courses with Enterprise Membership plan.

More Information

Learn How to Design Power Systems

Learn to design LV/MV/HV power systems through professional video courses. Lifetime access. Enjoy learning!

Subscribe to Weekly Newsletter

Subscribe to our Weekly Digest newsletter and receive free updates on new technical articles, video courses and guides (PDF).
EEP Academy Courses - A hand crafted cutting-edge electrical engineering knowledge