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

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
EMC Partner EMC Partner DOW3000 Oscillatory Wave Generator

The EMC Partner DOW3000 Oscillatory Wave Generator produces Damped Oscillatory Wave (DOW) signals via a 32A capacitative coupling clamp at an oscillation frequency of 3, 10 or 30MHz, with a usable cable diameter of 4 - 70mm and...

EMC Partner
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