Protection Relay Test Instrument is the core testing tool for secondary equipment in power systems, capable of performing full-functional verification of protection relay devices, automation equipment, and related power components. Below are the main product types and typical application scenarios that KINGSINE KF86P protection relay tester can test:
Line Protection Devices
Includes overcurrent protection, distance protection, pilot differential protection (e.g., fiber-optic differential, high-frequency protection), and auto-reclosing devices.
Testing Scenarios: Simulate short-circuit faults, broken lines, power swings, etc., to verify tripping logic and time settings.
Transformer Protection Devices
Differential protection (percentage restraint characteristic), over-excitation protection.
Key Tests: Harmonic restraint characteristics, inrush current blocking function.
Generator/Motor Protection Devices
Stator ground fault protection, rotor ground fault protection, loss-of-excitation protection, reverse power protection.
Special Requirements: Must support low-frequency, high-frequency harmonics, and non-periodic component simulation.
Busbar Protection Devices
Bus differential protection (current differential, composite ratio restraint), breaker failure protection.
Key Tests: Multi-bay synchronous current injection and logic blocking verification.
Capacitor/Reactor Protection Devices
Overvoltage/undervoltage protection, unbalanced current protection, harmonic overcurrent protection.
Automatic Transfer Switch (ATS) Devices
Verify main/backup power switching logic, blocking conditions, and operation time (e.g., incoming line transfer, bus coupler transfer).
Safety Automation Devices
Underfrequency load shedding, undervoltage islanding, stability control systems (requires synchronized multi-unit testing).
Smart Substation Equipment
Merging Unit (MU), Intelligent Electronic Device (IED), Phasor Measurement Unit (PMU) protocol conformance testing (IEC 61850) (requires GOOSE/SV message support).
Fault Recorders
Simulate complex fault waveforms to verify recording file integrity and time accuracy.
Energy Meters/Transducers
Accuracy calibration (voltage, current, power factor), harmonic influence testing.
Phasor Measurement Units (PMUs)
Dynamic signal simulation (frequency variation, phase jumps).
Low-Level Signal Sensors
Simulate 4-20mA/0-5V signals for transducer testing.
PV/Wind Power Protection Devices
Low Voltage Ride-Through (LVRT), anti-islanding protection, frequency adaptability testing.
DC Protection Equipment
DC line differential protection, pole busbar protection (requires DC component output support).
Full Compatibility
Supports 230+ test templates for major brands (Schneider, ABB, Siemens, etc.), with pre-configured test cases and one-click automated report generation.
High-Precision Output
6-phase current (6×35A) + 1-phase high current (105A), load capacity up to 424VA, covering scenarios from low-voltage distribution to high-current renewable energy applications.
Smart Protocol Support
Standard support for IEC 61850 (GOOSE/SV), Modbus, and other protocols, compatible with smart grids and digital substations.
Multi-Functional Expansion
Optional features include low-level signal output, harmonic superposition (up to 50th order), transient waveform simulation (e.g., oscillatory waves), meeting R&D and advanced testing needs.