The SEL-4000 Relay Test System is designed for testing protective relays that have low-level test capabilities. The system consists of the SEL-AMS Adaptive Multichannel Source and either the SEL-5401 or SELtest software.
Test two complete line terminals. Use the Adaptive Multichannel Source to provide the 3 voltage and 3 current waveforms to the relays for each end of a transmission line. Monitor the relay actions with the contact inputs, and simulate breaker 52a contacts with the contact outputs.
Test that your relay settings cause the relay to operate properly for a known condition. Set the relay, then playback event reports of known fault conditions to determine if the relay operates correctly.
Use amplitude ramping to test relay element thresholds.
Provide instantaneous and event report data, and simulate breaker operations in an informative demonstration for training, education, or other presentations.
Economical, Quiet, and Compact Adaptive Multichannel Source (AMS) Provides 12 Analog Outputs With 16-Bit Resolution
Test relays and other devices by simulating the waveforms from current or potential transformers, as presented to the internal analog input section of the devices under test. Using low-level analog signals reduces the cost, weight, power consumption, cooling, and noise of the test equipment that supplies high-level voltages and currents.
Digital I/O to Simulate Equipment and Monitor Test
The AMS includes six digital inputs to sense relay outputs and change test states. Use ten contact outputs to simulate station equipment, communications-assisted protection points, and more.
State-Simulation Software For Flexible Testing
The included SEL-5401 Test System Software provides a virtual front panel, plus multiple states to simulate power system changes and faults:
Complete Test Package
The AMS includes a 24/48/125 and 250 Vdc power supply, to power the equipment under test and the contact I/O. Cable harnesses for the equipment under test are included.
The Firmware IDs for older versions of the firmware can typically be found in Appendix A of the instruction manual.