Introduction to Impulse Generators in Electrical Testing

Impulse generators are critical instruments in the evaluation of electrical and electronic equipment’s resilience to transient overvoltages, such as those caused by lightning strikes, switching operations, or electrostatic discharge. These devices simulate high-energy surges to verify compliance with international standards, ensuring product reliability across industries. The LISUN SG61000-5 서지 발생기 is a precision-engineered solution designed to meet rigorous testing requirements, offering advanced waveform control, repeatability, and adaptability for diverse applications.

This article examines the technical principles, specifications, and industry-specific applications of the SG61000-5, emphasizing its role in safeguarding equipment performance under surge conditions.

Technical Specifications of the LISUN SG61000-5 Surge Generator

그만큼 SG61000-5 is engineered to comply with IEC/EN 61000-4-5, GB/T 17626.5, and other relevant standards, ensuring accurate surge waveform generation for immunity testing. Key specifications include:

The generator’s modular design enables seamless integration into automated test systems, supporting high-throughput validation for industrial and laboratory environments.

Testing Principles: Surge Immunity and Waveform Accuracy

Surge Waveform Generation

그만큼 SG61000-5 produces standardized combination waves (1.2/50 μs voltage surge and 8/20 μs current surge) to simulate real-world transient disturbances. The waveform parameters are critical for assessing equipment resilience:

• Rise Time (1.2 μs): Represents the initial voltage spike, mimicking fast transients.
• Decay Time (50 μs): Simulates the gradual dissipation of energy.
• Current Wave (8/20 μs): Evaluates the equipment’s ability to withstand high-energy surges.

Coupling and Decoupling Mechanisms

The generator employs coupling/decoupling networks (CDNs) to inject surges into power and signal lines while isolating auxiliary equipment. This ensures:

• Controlled Energy Injection: Prevents secondary damage to non-tested devices.
• Compliance with IEC 61000-4-5: Validates surge immunity for power ports (line-to-line, line-to-ground) and communication interfaces.

Phase Synchronization for AC Systems

For AC-dependent equipment (e.g., household appliances, industrial motors), the SG61000-5 synchronizes surges with the AC waveform phase (0°–360°), replicating real-world surge occurrences during peak voltage conditions.

Industry Applications and Compliance Testing

1. Lighting Fixtures and Industrial Equipment

• Test Requirement: Surge immunity for LED drivers, HID lamps, and control systems.
• 표준: IEC 61347 (surge withstand capability).

2. Household Appliances and Power Tools

• Test Requirement: Protection against power grid transients in refrigerators, washing machines, and drills.
• 표준: IEC 60335-1 (household safety).

3. Medical Devices and Intelligent Equipment

• Test Requirement: EMI resilience for patient monitors, surgical robots, and IoT devices.
• 표준: IEC 60601-1-2 (medical EMC).

4. Communication and Audio-Video Equipment

• Test Requirement: Surge resistance in routers, transmitters, and amplifiers.
• 표준: ITU-T K.21 (telecom immunity).

5. Automotive and Rail Transit Systems

• Test Requirement: Immunity testing for onboard electronics and charging stations.
• 표준: ISO 7637-2 (automotive transients).

6. Aerospace and Power Equipment

• Test Requirement: Surge validation for avionics and grid infrastructure.
• 표준: DO-160 (aircraft EMC), IEEE C62.41 (power systems).

Competitive Advantages of the SG61000-5

1. Precision Waveform Control:

   • Digital feedback ensures ±3% voltage/current accuracy, exceeding standard tolerances.

2. Automated Test Sequences:

   • Programmable surge counts, intervals, and polarity switching reduce manual intervention.

3. Broad Compatibility:

   • Supports DC up to 250V and AC up to 440V, accommodating global power standards.

4. Enhanced Safety Protections:

   • Overcurrent, overvoltage, and short-circuit safeguards prevent equipment damage.

5. Modular Expandability:

   • Optional CDNs for high-speed data lines (e.g., Ethernet, USB) and RF ports.

Frequently Asked Questions (FAQ)

Q1: What is the difference between 1.2/50 μs and 8/20 μs waveforms?

• 그만큼 1.2/50 μs wave represents an open-circuit voltage surge, while the 8/20 μs wave simulates a short-circuit current surge. Combined, they replicate real-world transient events.

Q2: Can the SG61000-5 test DC-powered devices?

• Yes, the generator supports DC systems up to 250V, including solar inverters and EV charging stations.

Q3: How does phase synchronization improve surge testing?

• Synchronizing surges with AC phase peaks ensures worst-case scenario testing, as transients often coincide with maximum voltage.

Q4: Is the SG61000-5 compliant with military standards?

• While primarily designed for civilian standards (IEC/EN), it can be configured for MIL-STD-461 surge testing with additional accessories.

Q5: What industries require surge testing most critically?

• Power utilities, automotive electronics, and medical devices demand stringent surge immunity due to safety-critical operations.

This technical overview underscores the LISUN SG61000-5 Surge Generator as an indispensable tool for ensuring equipment durability across multiple sectors. Its precision, adaptability, and compliance with global standards make it a benchmark in surge immunity testing.