ANSI/IEEE Standards: ANSI/IEEE C37.90: Standard for Relays and Relay Systems Associated with Electric Power Apparatus


Products Used in Testing:

EM Test EM Test OCS 500N6 Oscillatory Wave Simulator

The EM Test OCS 500N6 Oscillatory Wave Simulator includes test capabilities for ringwave up to 6kV (as per IEC 61000-4-12) and the damped oscillatory waves at 100kHz and 1MHz up to 3kV (as per IEC 61000-4-18). The Ringwave is a...

EM Test
EM Test EM Test OCS 500N6F Damped Oscillatory Wave Simulator 3MHz/10MHz/30MHz

The EM Test OCS 500N6F Damped Oscillatory Wave and Ringwave Simulator includes the test capabilities for fast damped oscillatory waves at 3MHz/10MHz/30MHz up to 4.4kV and is extendable for slow damped oscillatory waves at...

EM Test
Haefely Haefely PIM 150 Oscillating Wave Module for IEC 61000-4-12 & ANSI C37.90.1

IEC 61000-4-18 and ANSI C37.90 describe an oscillating wave generator with defined open circuit waveforms parameters. The oscillating wave, also called a “damped sine” is used to test the immunity of electronic...

Haefely