Transient Generator Rental - Immunity Test Equipment

Transient Generators & Equipment

These pulse systems are often categorized by their waveform capabilities, levels of the associated pulses, and DUT/EUT capabilities. Systems are often capable of putting pulses on 3-Phase, data lines, etc. with the use of coupling decoupling networks (CDNs). Often times the same platform (system) has the capabilities to offer a variety of different pulses and exact configurations are depend upon the required testing needs. Another important consideration is where the pulses are being applied to. Transients can be applied to power mains, data lines, and a variety of other cables and connections associated or connected to electrical devices or equipment. 

General Information

Transients are generally described as a relatively fast, quick non-repeating waveforms often caused by changes in voltage, current, or frequency often characterized by relatively fast rise or fall times on a variety of different sources. These series of pulses and (damped) oscillation waves are often produced by changes in the electrical system itself, or by connected and nearby devices. The devices associated with simulating these occurrences, transient generators, are built and designed to provide a variety of required pulses on different lines and cables to replace the real world event. The below picture provides the menu of the EM Test NX5 and associated burst pulses. The most common types of these include:

• Combination Wave Surges
• Electrical Fast Transients (EFT) Burst
• Dips & Interruptions
• Ringwave Pulses
• Damped Oscillatory Pulses (DOW)
• Common Mode Interference

Surge & EFT Systems

Combination wave surges (IEC 61000-4-5) and electrical fast transient (IEC 61000-4-4) are common immunity tests in many test plans. The generators associated with these pulses are often combined into a single system given that these tests are both usually done at the same time. These conducted immunity systems can also provide additional testing capabilities (Telecom, etc.) with the correct associated modules installed. these systems are usually categorized by test level and EUT CDN capabilities. To ensure compliance to IEC 61000-4-5, it is crucial to properly place pulses directly onto different positions/phase angles, often times done with automatic couplers.

Common 4kV Platforms

Haefely - Axos 5

• 5kV EFT/Burst & Surge Immunity Generator System
• Front Panel Attenuated Voltage & Current Monitoring 
• Built In 264v/16A AC 220V/10A DC Single Phase Coupler
• Rent FP-COMB 32 3-Phase 480V/32Amp AC/DC CDN
• Compact & Easy to use - No Software or License Required

EM Test - NX5

• Rent both 16 Amp & 32 Amp CDN configurations
• Variety of External Automatic & Manual CDNs 
• Rent Coupling NX7 (bsr-3-480-32) 3-Phase 480V/32Amps CDN
• Very compact & 7inch Touch Screen - Programmed Standards
• Laptop with EM Test Control Software Included with Rentals

 

Conducted Immunity Generators

Automotive and vehicle based conducted interference test systems offer capabilities to provide all 5 commonly occurring transients on a variety of different devices and components. Given the unique transient requirements and vast amount of manufacturer based standards, having the correct and up to date software is crucial to compliance. Most automotive systems are broken out either modular broken out by functionality (power supply/source, microburst/EFT generator, load dump testers, etc.) or the more easier to use approach of battery simulator/power supply and single transient system. Common conducted interference waveforms include:

• Overvoltages  
• Interruptions 
• Starting Profiles & Jump Start 
• Voltage Drop & Dropout
• Surges (Positive/Negative)

Teseq NSG 5500

• Configuration - +ARB, LD5550, MT5511, Modules & Software
• Rental PA 5480-75 (25 Amp) & PA 5840-300 (100 Amp) Available
• ISO 17025 Calibration & Laptop with Autostar License Included
• Get ISO 7637-2/3 ACC Clamp & CIP 9136A for Compliant Solutions
• Compact & Easy to use - Quick Setup & Test Routines 
• Variety of Standards Covered - ISO 7637, GMW3172. & Others

Capabilities & Accessories

The two different system configurations EM Test Automotive System (module system) and Teseq NSG 5500 Test System, offer different testing capabilities that can be utilized to meet a variety of testing needs. The EM Test rental systems provide the most comprehensive testing capabilities with the variety of accessories available for manufacturer based standards. These systems can be also use in conjunction with each other offering test solutions to LV124 and LV148. 

MIL-STD-461 & DO-160 Transients

Military and avionic transient generators focus around MIL-STD-461 & DO-160 series of tests, commonly MIL-STD-461 CS116, MIL-STD-461 CS117 and others. These conducted susceptibility interference standards often require damped sinusoidal wave testing as well. Given the overlap between these large EMC based standards, there is considerable overlap in both the type and level of testing that is required. Much of the military based testing requires injection of transients via current injection probes (CIP) as well as calibration prior to testing beginning. Complete test solutions will often require calibration fixtures, termination loads, and other accessories required for compliance. 

• Includes Transient Generator, Probes, & Calibration Fixtures
• Solar 9354-2 Transient Pulse Generator System
• Compact & Easy to use - All Solar Electronics Equipment
• Can be used with Solar 9355 for CS115 test solution
• Covers some Waveforms of MIL-STD-461 CS117
• Provides Exponential & Damped Oscillatory Pulses

EMC Partner - AVI3000

• DO 160 & MIL-STD-461G CS117 - 6 Waveforms 
• Full Level 3 Threat Under all Load Conditions
• Laptop & ISO 17025 Calibration (Probe & Fixture)
• Comes with CN-BT7 Injection Probe & TEMA3000
• Meets a variety of Indirect Lighting Test Requirements 
• Automated test process, no need to change generator

IEC Webstore - Preview/Purchase IEC 61000-4-5 Surge Standard

Compliance Club - EMC Testing Part 3 – Fast Transient Burst, Surge, Electrostatic Discharge

Interference Technology - MIL-STD-461G: The "Complete" Review

EMC FastPass - EMC Testing: The Beginner's Guide

AllTec - What is an electrical transient?

Teseq - Transient Immunity Products

Teseq - NSG 5500 User Manual

EM Test - Multifunctional Generators Immunity

EM Test - NX5 User Manual