Electrical engineering calculations

We provide consultation and calculations for water treatment, power and manufacturing plants, so customers buy the right equipment based on accurate electrical engineering calculations.

This is engineering through and through – the design schematics and calculations essential for large projects. We work with partners and clients to develop the functional brief before developing the electrical and control system design.

We can work with your project documents – Piping and Instrumentation Diagrams (P&ID), equipment lists, functional descriptions, or process requirements – to design and document your project for your installation team.

We have experience in Control System Development (PLC, PCs, drivers, instrumentation, industrial networking) to identify and assess the right technology mix for your automation application and system architecture.

We have developed our own frameworks based on electrical standards to process data and create documentation, templates, and representative blocks that all comply with the mandatory AS/NZS electrical regulations.

Why choose SDS?

One-stop shop

Our team of electrical engineers and drafting technicians provide a complete engineering solution. Our team manages every aspect of the engineering design, so you get a full drawing and documentation package to price and install.

Latest trends and innovations

Our professionals are always looking for the most efficient products available in the market. We’ll explain your options, so you get the best possible solution for your operating environment.

Solving the complex problems

We help you process raw data, do the electrical calculations, and create a comprehensive plan that can be understood by an apprentice electrician all the way up to a chartered power engineer.

Our process

01

ANALYSE

Analyse the installation’s raw data to design a solution that is fit for purpose and efficient.

02

DOCUMENTATION

Our in-house professionals generate your design drawings, calculations and specifications – all compliant with AS/NZS regulations and electrical standards.

Service features

Electrical and automation engineering details, such as:

3ph/1ph load distribution (load list)
DB calculation and distribution (Services DB, Process/Field DB, UPS DB)
Cable Schedule design (based on power rates, IP protection, signal type, customer standards)
PLC IO layout design
PLC IO list (tags design, wire ID design, signals distribution)
Typical detailed design (e.g., VSD, DOL, Dosing Pumps, UV Reactor units, Pumps Units)
Full documentation, including list and gear information, for a clear and comprehensive pathway into the drawing stage
MCC switchboard / cabinet / panel layouts engineering, design and drawings
Conductor, conduit and circuit sizing calculation

Essential documentation required for electrical and automation drawings:

Load calculations
Short circuit and harmonic distortion analysis
Generator capability
And all other aspects for commercial and industrial installations.
Electrical protection components
Cable sections
Load distribution
Connection topologies in the instrumentation
PLC and control equipment
IO PLC connection
Low power distribution
IO PLC distribution list