Introducing the Key Test Modules of KF86P Protection Relay Tester

In the field of power system safety operation and maintenance, the accuracy and reliability of protection relay devices are crucial. Our industry-tailored PC software KRT for protection relay testing focuses on core functional scenarios, featuring five key modules—AC testing, overcurrent protection, differential testing, distance testing, and state sequence—along with 16+ additional modules (such as ramp, harmonics, and frequency testing), covering 90% of global protection relay testing needs.

The software includes a built-in template library of 260+ device models from leading brands like Siemens, ABB, NR Electric, and more. It supports three parameter import methods, including XRIO, improving test configuration efficiency by 80%.

Core Feature Highlights

1. AC Testing Module – The Flexible Foundation of Protection Relay Testing

• Supports manual/automatic adjustment of voltage/current magnitude, phase, and frequency (single-phase or multi-phase), with customizable step sizes and timing—ideal for sequence components, power characteristics, and diverse testing needs.
• Provides real-time feedback on test results with intuitive logic input/output (I/O) selections, simplifying routine protection verification and complex scenario simulation.

2. Overcurrent Protection Module – Comprehensive Curve Characterization

• Covers all standard definite-time, inverse-time, and directional overcurrent characteristic curves, supporting customized component parameters and batch multi-point testing;
• Integrates power direction blocking to accurately validate protection logic and response speed under varying load conditions.

3. Differential Testing Module – All-in-One Solution for Ratio & Harmonic Restraint

• Dual-mode testing (ratio restraint and harmonic restraint) to simulate internal/external faults, verifying sensitivity and reliability of differential protection;
• Supports custom restraint curves, multi-point scanning, and one-click generation of restraint boundaries and operating threshold reports.

4. Distance Protection Module – Dual Breakthroughs in Algorithm & Efficiency

• Built-in multiple impedance compensation algorithms and supports imported impedance curves for compatibility with diverse relay models;
• Switch seamlessly between single-point testing and multi-point scanning to rapidly identify operating boundaries, slashing test time.

5. State Sequence Module – The Intelligent Engine for Timing Control

• Customizable multi-state sequences with flexible logic I/O triggers to precisely measure trip time, reclosing timing, and other critical parameters;
• Simulates complex scenarios like re-acceleration and fault recovery, ideal for auto-reclosing and protection coordination testing.

Why Choose Us?

• Precision & Efficiency: Millisecond-level time resolution, ±0.1% output accuracy for authoritative results;
• Smart & User-Friendly: Auto-ramp parameter judgment, real-time visualization, one-click reporting to streamline workflows;
• Full Scenario Coverage: From basic verification to renewable grid integration and smart grid protection, meeting advanced testing demands.