EN/IEC 61000-4-18

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The IEC 61000-4-18 standard falls under the umbrella of immunity to electrical surges. The EMC shop specializes in conducted immunity testing and stocks oscillatory wave generators compliant to IEC 61000-4-18.

EN/IEC 61000-4-18 WAVE TYPES

This part of IEC 61000 focuses on the immunity requirements and test methods for electrical and electronic equipment, under operational conditions, with regard to:

a) repetitive slow damped oscillatory waves occurring mainly in power, control and signal cables installed in high voltage and medium voltage (HV/MV) substations;

b) repetitive fast damped oscillatory waves occurring mainly in power, control and signal cables installed in gas insulated substations (GIS) and in some cases also air insulated substations (AIS) or in any installation due to high-altitude electromagnetic pulse (HEMP)
phenomena.

Damped oscillatory waveforms required per IEC 61000-4-18 testing

EN/IEC 61000-4-18 DEFINES

– test voltage and current waveforms
– ranges of test levels;
– test equipment
– calibration and verification procedures of test equipment
– test setups
– test procedure

EN/IEC 61000-4-18 TEST SETUP

Diagram of equipment setup for IEC 61000-4-18 oscillatory wave immunity test

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EN/IEC 61000-4-18 Test Equipment, Systems & Solutions

NoiseKen SWCS-900-1M Damped Oscillatory Wave Generator for IEC 61000-4-18

SKU: 12119

Oscillation frequency: 1 MHz

Repetition frequency: 400 Hz

Rise time: 75ns± 20%

Output resistance: 200Ω± 10%

Output waveform: Low frequency damped oscillatory wave

Output voltage: 0.25 kV to 3.00 kV ± 10% ( 10Vstep )

CDN capacity: Single or Three-phase AC 240V 20A, or DC 125V / 20A

Test Standards: IEC 61000-4-18

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EMC Partner MIG0603 Damped Oscillatory Wave Generator System

SKU: 05707

Frequency: 100 kHz - 1 MHz

Voltage range: 0.2 up to 3 kV

Source impedance: 200 ohms

Damping rate: 50% between 3rd and 6th periods

Pulse rise time: 75 ns

Burst repetition: 100 kHz up to 50 Hz

Burst repetition: 1 MHz up to 500 Hz

Voltage increment: 1 V steps

Test Standards: IEC 61000 4-18, ANSI/IEEE C37.90.1

Applications: Immunity to Electrical Surges

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Haefely PIM 150 Oscillating Wave Surge Generator

SKU: 10526

Burst frequency: 100 kHz & 1 MHz

Coupling: Single & Multiple Path

Mains & EUT Connections: HV connector & CDN

Source Impedance: 200 ohms

Standards Met: IEC 61000-4-18 Power & Data lines; ANSI C37.90.1, IEC 60255-22-1, IEEE 1613

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EMC Partner MIG-OS-OS1 Oscillatory Wave Generator

SKU: 5707

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EMC Partner MIG-OS-OM Slow Wave Oscillatory Wave Generator

SKU: sku-415

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EMC Partner DOW 3000 Slow/Fast Damped Oscillatory Wave Generator

SKU: sku-414

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CDN 418CAN Data & Control Line Coupling Decoupling Network

SKU: 55116

Coupled Waveform: Damping oscillation wave at 100 kHz/1 MHz

Pulse Voltage: ≥3 kV

Coupling Mode: CAN H+CAN L simultaneous ground/LIN ground

Communication Frequency: <5 MHz

Data Rate: CAN 10MBit/s, LIN 100 KBit/s

Working Voltage: ≤12 V DC

Working Current: Maximum 2 A

EMC Standard: EN/IEC 61000-4-18

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Haefely PSURGE 8000 EMC Surge Platform with Expandable PIM Modules

SKU: 11411

Applications: Surge immunity - Combo Wave, Ring Wave and Oscillatory Waves

Surge/Combination Wave: IEC/EN 61000-4-5 Ed. 1 & 2, ANSI C62.45

Ring Wave: EN/IEC 61000-4-12, IEC/EN 61000-4-5 Ed. 1 & 2, ANSI C62.45

Damped Oscillatory Wave: EC 61000-4-18, ANSI C37.90, IEC 60255-22-1, IEEE 1613

Telecom Surge: IEC/EN 61000-4-5 , ITU K-series and IEC 60950

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EM Test OCS 500N6F Simulator for Fast/Slow Damped Oscillatory Waves and Ringwave

SKU: 10413

Burst duration: 50 ms ±20%, at 3 MHz 15 ms ±20%, at 10 MHz 5 ms ±20%, at 30 MHz

Damping Rate: Peak 5 to be more than 50% of peak 1 value Peak 10 to be less than 50% of peak 1 value

Oscillation Frequency: 3 MHz, 10 MHz and 30 MHz, ±10%

Source Impedance: 50 ohm ±20%

Voltage: Voltage (o.c.) at HV output 450 V - 4,400 V ±10%

Burst Duration: At least 2s

Damping Rate-2: Peak 5 to be more than 50% of peak 1 value Peak 10 to be less than 50% of peak 1 value

Fast Damped Oscillatory Waves: As Per EN/IEC 61000-4-18

Frequency: 100 kHz ± 10%

General Data: Technical Details

Impedance: 12ohm and 30ohm ± 20%

Oscillation Frequency-2: 100kHz and 1MHz ± 10%

Peak current: Max. 500A @ 12ohm or Max. 200A @ 30ohm internally;

Polarity-2: Positive, negative

Pulse repetition: 1 to 60 transients per minute

Repetition Rate: Max. 5,000 /s ±10%

Ringwave 0.5 μs/100 kHz: Pulse conforms to IEC/EN 61000-4-12 and ANSI (IEEE) C62.41

Source impedance: 200ohm ± 20%

Spike frequency: 100kHz ± 10%

Test Voltage: 250 V - 6,000 V ± 10%

Equipment Group: Ring Wave Generators/Simulators

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