Power System Analysis

Short Circuit Analysis

Integral Power uses world’s leading software tools to quantify the magnitude of fault currents throughout your electrical network. We compare the interrupting duties of existing/new electrical equipment on your network to the available prospective fault current and give you actionable recommendations which will allow you to choose new equipment, replace or modify your existing assets in order to comply with all applicable codes and standards.

Integral Power’s Short Circuit analysis report will help you:

• Determine your system’s response under fault conditions
• Obtain detailed IEC 60909 compliant short circuit calculations
• Verify equipment duty ratings under fault conditions

3D Substation Modelling

Integral Power’s 3D substation modelling helped us engineer innovative solutions to our customer’s long-standing problems. It has condensed weeks into days when it comes to design time. Our 3D designs are more accurate and actionable that convention 2D substation designs out there in the market.

You can now analyse and address environmental impacts, physical forces acting upon the structures, cable sags, electrical clearances and other real-time concerns. With all this additional detail incorporated within the substation model, constructors, vendors and fabricators can now pour foundations, prepare components and build structures to precise specifications, leading to efficient substation construction.

Earthing Design

Earthing system design requires a comprehensive understanding of causes that can influence the performance of an earthing system under fault conditions. While our engineers are experienced in the implementation of IEEE-80 and AS/NZS-2067 compliant earthing design, they are also proficient in the use of some of world’s most capable earthing design software including CDEGS™ and XGSLAB™.

Our Earthing Design report will include:

• Earth grid calculations and design including soil analysis
• Earthing systems performance in both uniform or double-layered soil models
• Professional numerical and graphical results of GPR
• Analysis of Leakage currents & Surface potential
• Touch and step voltage distribution across your earthing system
• Minimum conductor sizing

Load Flow Analysis

With Integral Power’s Load Flow analysis, you can address the deficiencies in your electrical system while identifying the potential to save energy and meeting future needs with your existing assets. Our engineers are proficient in using some of the worlds most advanced power system analysis tools including Etap™ and EasyPower™. Our engineers will give you actionable recommendations which will allow you to choose appropriately rated new equipment, replace or modify your network operations to comply with all applicable codes and standards.

Our Load Flow analysis report you will:

• Obtain an insight of your systems Watt, VAR flows, Voltages and Current profiles
• Detect and resolve overloads, voltage violations, and problem conditions
• Reduce energy costs by optimizing system efficiency
• Gain relevant insights for designing, troubleshooting, and optimizing your system

Motor Starting Analysis

With Integral Power’s Motor Starting Analysis we can precisely calculate starting times, speed, torque, system voltage drops, relay interactions in the event of large motors switching on within your electrical system. With overloads clearly highlighted, you can avoid unnecessarily tripping your plant while minimizing downtime. Our engineers will simulate real-time plant conditions, including multiple starting motors, switching contactors, and relay tripping, helping you see the implications that changes have on the system even before you implement them.

Integral Motor Starting analysis report will help you:

• Design, troubleshoot, and optimize complex motor starting with precision
• Analyse Motor starting times, Speed, Torque and System voltage drops
• Recommend solutions for resolving system problems such as overloads and voltage violations
• Recommendations to optimize protection relay settings, transformer taps and capacitor switching

Arc Flash Analysis

Arc flash has proved to be a major risk for the electrical industry in Australia and abroad. Integral Power has one of the most experienced team of professionally trained arc flash engineers, who have hands-on experience in implementing NFPA-70E and AS/NZS-4836 based arc flash safety systems. Our engineers are certified users of ETAP™ and EasyPower™ and have a track record of has providing comprehensive arc flash safety solutions including arc flash hazard assessment, determination of arc flash boundaries and determining hazard risk categories.

With our comprehensive Arc Flash Study you will:

• Be able to implement a comprehensive arc flash program
• Obtain full IEEE-1584 and NFPA-70E based arc flash calculations
• IEEE-1584 based calculations using decaying currents & dynamic flux models
• Know the required PPE levels along with incident energies (cal/cm²)
• Be able to implement a comprehensive arc flash program
• Obtain recommendations for protective device settings for enhanced safety
• Obtain NFPA-70E and AS/NZS-4836 compliant arc flash safety labels

Harmonic Analysis

Harmonic studies are performed to determine the effects of non-linear electrical devices (such as furnaces, large variable-speed devices, static VAR compensators and DC rectifiers) on the electrical network. Harmonic studies are typically associated with the installation of Variable speed Drives (VSDs), capacitor/reactor banks and for designing and evaluating the performance and effectiveness of harmonic filter banks.

With our Harmonic Analysis you will help you:

• Analyse harmonic currents, voltages, and system interference for IEEE 519 compliance
• Add power-factor correction while avoiding harmonic resonance
• Simulate multiple operating conditions
• By modelling harmonic filters to verify proper design and acceptable mitigation
• Avoid costly downtime and equipment damage

Protection Coordination

At Integral Power, we will determine the settings and ratings for your protective devices such as Protection relays, CBs and Fuses across your power system. These settings and ratings will be determined by our engineers who will plot the Time Current Curves (TCCs) of each device and applying AN/NZS, IEEE and IEC standards to ensure that you get the optimum protection across your electrical network.

Integral Power’s Protective Device Coordination study will:

• Provide you detailed relay setting that are to be loaded into your protection relays
• Ensure that all your valuable assets are protected against electrical damage
• Help you maintain appropriate coordination between protective devices
• Increase reliability of your operations by restricting the fault/overload trips locally