What is PS Simul?

PS Simul is a graphical simulator developed by Conprove to assist engineers and technicians in modeling electrical systems, automation, and protection. It allows users to create logical and electrical circuits, simulate real operating conditions, and test the behavior of protection systems under different scenarios.

Key features include:

Simulation of breakers, CTs, VTs, transformers, loads, and equivalent systems;
Implementation of protection logic using functional blocks;
Visualization of signals, timings, and commands;
Library of sample circuits with detailed comments.

Example of ANSI 51 Function: How Does It Work?

The circuit provided by Conprove simulates a simplified electrical system consisting of:

An equivalent system;
An ideal current transformer (CT);
A protection breaker;
A feeder representing system loads.

The operation logic is modeled to reflect the actual behavior of a protection relay. The RMS value of the CT secondary current is continuously monitored. Based on this value, two key logic operations are activated:

Calculation of the theoretical operating time, based on the overcurrent curve parameters (pickup and time dial);
Real-time counting, which begins when the RMS current exceeds the configured pickup.

When the count reaches the theoretically calculated time, a trip command is sent to the breaker, isolating the fault.

This structure provides a clear visualization of the protection process, helping users understand the relationship between current, characteristic curve, and operating time.

Applications and Benefits

The main advantage of this example is its educational approach, suitable for both experienced professionals and electrical engineering students. Additionally, the ability to adjust parameters and simulate different conditions makes PS Simul a practical and efficient tool for internal training, project validation, and technical studies.

Key benefits include:

Reduced time in building complex logic;
Ability to test strategies before field implementation;
Visual understanding of protection behavior;
Free access to a library of sample circuits.

Conclusion

Using tools like PS Simul demonstrates Conprove’s commitment to the technical development of electrical engineering in Brazil. The ANSI 51 function simulation is just one example of what can be achieved with the platform, which continues to prove itself as an indispensable ally for professionals seeking quality, efficiency, and innovation in power system protection.

Learn more:

Explore this and other resources in PS Simul:
https://mla.bs/0e539568

Discover all Conprove products and solutions:
https://conprove.com/