IEC 61000-4-18 is a globally recognized standard that defines testing methods to assess the immunity of electrical and electronic devices to damped oscillatory wave disturbances. These waves are typically caused by switching operations and fault conditions in high-voltage and medium-voltage substations or power distribution systems. Ensuring immunity to these disturbances is essential for maintaining the reliability and safety of critical electronic systems.
Key Features
- Simulates Real-World Electrical Disturbances: Reproduces damped oscillatory transients typically found in substation environments.
- Applicable to Substations & Industrial Equipment: Designed specifically for equipment used in power stations and heavy electrical installations.
- Supports Both Common & Differential Mode Testing: Comprehensive immunity assessment for various coupling scenarios.
- Versatile Coupling Methods: Includes options for direct and capacitive clamp-based injection.
- Standard-Compliant Test Equipment: Employs approved damped oscillatory wave generators that meet the requirements of IEC 61000-4-18.
- Helps Achieve Regulatory Compliance: Crucial for meeting international EMC requirements and grid safety standards.
- Customizable Test Levels: Tailored test voltages and configurations based on product type and installation class.
Testing Specification
Standard: IEC 61000-4-18:2019
Scope: Electromagnetic Compatibility (EMC) – Methods for testing and measurement – Immunity testing against damped oscillatory waves
Test Levels:
Common mode and differential mode tests
Voltage levels: 100V, 250V, 500V, and 1kV (depending on application and equipment class)
Waveform Characteristics:
Frequency: 100 kHz and 1 MHz
Test Duration: Determined based on the product category or its intended application environment.
Damping: 22 oscillations within a time window
Rise Time: 75 ns ±20%
Repetition Rate: Usually set at 1 Hz, unless otherwise specified.
Test Ports:
Power supply ports
Signal/control/data ports
Earth connections (if applicable)
Test Methods:
Capacitive clamp
Direct injection
CDN (Coupling/Decoupling Network)
Applications
Power Substation Equipment
SCADA Systems
Protective Relays & IEDs
Industrial Control Panels
Smart Grid Devices
Communication Interfaces in High-Energy Environments
At ARRAA Labs in Chennai India, we specialize in IEC 61000-4-18 EMC Immunity Testing for substation and industrial equipment. Our team of experts ensures that your equipment meets international standards for damped oscillatory wave immunity, safeguarding it against disturbances typically found in power transmission and distribution environments.
We operate a fully equipped, state-of-the-art laboratory designed to perform accurate and reliable compliance testing in accordance with IEC 61000-4-18. Whether you’re preparing for product certification or enhancing equipment resilience, we provide complete testing and certification solutions tailored to your needs.
- Certified Equipment
- Experienced EMC Professionals
- Fast Turnaround & Detailed Reports
Contact ARRAA Labs today to get the most reliable and professional EMC testing solutions for your critical equipment.