Epistar Corp. adopts Chroma’s LED Power Driver ATS Solution

The professional LED chip manufacturer – EPISTAR CORPORATION has adopted the LED automatic test system provided by Chroma to enhance the LED product advantage by simulating and testing the LED power electrical properties of various types.

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Chroma Introduces a Compatibility Test Solution for Electric Vehicle and EV Supply Equipment (EVSE)

The media recently reported that electric vehicles cannot be charged in public locations due to incompatibility issues, some EV Supply Equipment (EVSE) installed in public locations are not provided by the manufacturer of the vehicle but by secondary manufacturers in the industry. The incompatibility arises from a lack of verification in the communication protocol resulting in a charge failure or other hazardous conditions. This could have a negative impact on the consumer’s adoption of the electric vehicle.

The common accepted global standard for electric vehicle charging is SAE J1772, which defines the technical specification requirements between the electric vehicle and EVSE.  However, it doesn’t provide a unified verification process for communication protocol in a lab approved system. Due to the variance of the manufacturer design and differences in components, the communication problems occur during actual operation resulting in an unsuccessful charge. Electric Vehicle and EVSE compatibility is imperative to consumer buy-in. However, the high costs to develop test system hardware, software and test procedures as well resource allocation has been prohibitive – until now.

Chroma has developed an Electric Vehicle AC Charging Compatibility Test System for the manufacturers of electric vehicles. This has resulted in the world’s first UL approved SAE J1772 EVSE Communication Protocol Automated Test System. The system simulates various states of an EVSE to validate AC charging compatibility before electric vehicle delivery. The solution has been adopted by a Korean electric vehicle plant and Chroma has recently acquired the bid of the Bureau of Standards, Metrology and Inspection (BSMI) as the future evaluation system of Taiwan electric vehicles. The system’s main functions are as follows:

  1. To simulate varied EVSE’s for testing if the electric vehicle can perform accurately or respond appropriately when the pilot signal contains an error; based on the requirements of different regulations.
  2. Test various EVSE communication and responses based on limits outlined in SAE J1772 standard to assure compatibility.


New High Power Regenerative Grid Simulators Test On-grid Products

Chroma Systems Solutions, Inc., a leading provider of power conversion testing equipment and automated systems, announces the release of their 61800 Regenerative Grid Simulator. The 61800 is a full 4 quadrant, fully regenerative, AC power source with advanced features satisfying rigorous regulatory standards testing as well as design and verification testing throughout the product development cycle. The 61800’s power can both sink and source from the UUT seamlessly to support countless applications. In cases where the UUT sources current, a detection circuit will sense the excess power and recycle it back to the grid. Designed to simulate grid characteristics the 61800 is ideal for testing PV inverter, on-line UPS, Smart Grid, Vehicle to Grid (V2G) and Energy Storage System (ESS) applications as well as common electrical product testing such as home appliances and industrial electronics requiring a programmable input source.

Chroma 61800 Regenerative Grid Simulator

Chroma 61800 Regenerative Grid Simulator

The 61800 Regenerative Grid Simulator is currently offered in two models: 45kVA and 60kVA. Its extensive feature set boosts state-of-the-art digital control technology and can deliver up to 300VAC at output frequencies ranging from 30Hz to 100Hz. The AC+DC feature allows for applications that require a DC offset bias. In addition to supplying clean, precise and stable AC voltage, the 61800 is capable of simulating various types of distorted voltage waveforms and transient conditions required by product validation testing.

The Synthesis function allows users to create periodic harmonic voltage waveforms of up to 40 orders based on a 50/60Hz fundamental frequency. The Inter-harmonic function allows users to perform frequency sweeps ranging from 0.01Hz to 2400Hz on top of the 50/60Hz fundamental frequency. This special function assists users in locating the resonance points. The 61800 series is also able to provide precision measurements such as RMS voltage, RMS current, true power, power factor, current crest factor and many others. By applying advanced DSP technology, the 61800 can easily simulate power line disturbance (PLD) using LIST, PULSE and STEP modes. RS-232, USB and Ethernet interfaces are available to control the 61800 grid simulator remotely.

Chroma Systems Solutions to Include Software for a Limited Time

Chroma Systems Solutions, Inc., announces they will include their remote operation softpanels with the purchase of participating test instrumentation at no charge. This offer is for a limited time and applies to most test instrumentation. Order must be received by December 20th, 2013.

Chroma’s softpanels allow instruments to be remotely programmed and controlled using point-and-click software screens. Panels allow for setting and read back from instruments as well as providing measurements that can be captured, archived, or exported for later use. Softpanels are easily setup and operated via intuitive graphical interfaces.

Offer applies to participating test instrumentation only. Accessories or components do not apply. Application specific test executive softpanels must be purchased separately. Offer applies to direct sales only and is not available through our distributor network.

To see a list of participating instruments and for more information on this offer, logon to http://www.chromausa.com/promo/softpanels.php or call us at (949) 600-6400.

Chroma’s Wound Component Analyzer Combines Many Tests

Chroma Systems Solutions, Inc.,  announces the industry’s first Wound Component Electrical Safety Test (EST) Analyzer that combines impulse winding, AC/DC hipot, insulation resistance and DC resistance test measurement functions. Chroma’s 19036 Wound Component EST Analyzer has 5kVac/ 6kVdc high voltage output, 5kV insulation resistance, 6kV layer short impulse voltage and 4-wire DC resistance measurement with a maximum output of up to 40 channels. Capable of outputting and measuring AC100mA/DC 20mA, Chroma’s 19036 is suitable for testing to high power motor standards such as UL 1004-1. Its 500VA design is also compliant with the output power requirements of EC/UL. Wound component applications include EV motors, servomotors, ascension motors, transformers and solenoid valves.

Chroma 19036 Wound Component Electrical Safety Test (EST) Analyzer

Chroma’s new Wound Component Electrical Safety Test (EST) Analyzer.

Chroma’s 19036 Wound Component EST Analyzer impulse winding test imposes a non-destructive, high speed and low energy voltage impulse on the device under test for analysis and comparison. The purpose of impulse winding test is to discover potential defects such as layer short, corona or partial discharge usually difficult to find in wound components during early phases of design and production. Analysis of the impulse test can be determined by Area Size, Differential Area, Flutter Value or Laplacian method.

The 19036 is equipped with a patented 4-wire DC resistance test that has both Drive and Sense in compliance with withstanding specification and provides 10 channels of 4-wire DC resistance test functions. Up to 40 channels of scanning test can be conducted when the 19036 is configured with the optional 16 channel external HV scan boxes.

The 19036 includes Flashover Detection built-in. Flashover is an electrical breakdown of a gas that produces an ongoing plasma discharge, resulting from a current flowing through normally nonconductive media such as air. Since flashover cannot be simply detected by the leakage current rms value, the Flashover Detection feature is an invaluable part of the HV test. For Contact Checking during the hipot test, the 19036 is equipped with a High Frequency Contact Check (HFCC). By conducting the Contact Check during Hipot test, it can increase the test reliability and efficiency significantly by identifying test fail problems caused by bad contact of cabling or the test fixture. For more information on these testers, logon to http://www.chromausa.com/hipot-safety-testers/19036-wound-component-est-analyzer.php or call us at (949) 600-6400.