Sep 29th, 14
PRLog - Sep. 29, 2014 - FOOTHILL RANCH, Calif. – Chroma Systems Solutions announces today the addition of the Chroma 11050 HF LCR Meter precision test instrument designed to accurately measure and evaluate passive components at high speeds. Its measurement capabilities cover the primary and secondary parameters required for testing the inductance, capacitance, resistance, quality factor and loss factor of passive components.
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Jan 16th, 14
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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Nov 19th, 13
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:
- 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.
- Test various EVSE communication and responses based on limits outlined in SAE J1772 standard to assure compatibility.
Sep 9th, 13
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’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.
May 6th, 13
Chroma’s new model 66203 and 66204 Power Meters allow users to take accurate power measurements for various wiring modes including three phase WYE and DELTA and split phase. These power meters feature state-of-the-art DSP digitizing technology which replaces less accurate and slower traditional analog circuits. The internal 16 bit analog/digital converters with sampling rates of up to 250 kHz provide both high speed and high accuracy measurements.
The 66203 and 66204 are packaged in a 3U high, half rack enclosure suitable for bench top or system integration. The 4 channel 66204 is ideal for functional and efficiency measurements of three 3 phase grid inverters as the fourth channel maybe be used to measure the DC voltage, current, and power on the input side of the inverter.
The 66203 and 66204 power meters include a 2-shunt design to provide high accurate readings for both low and high current measurements and are capable of supporting external shunts and current transformers for higher current applications. The power meters also support Inrush Current, Total Harmonic Distortion of V/I, and Energy measurements. These practical functions make Chroma’s new power meters ideal for meeting the demanding tasks of R&D, production and quality control departments.
The instruments include a four part display with 7-segment LED front panel readouts. Users can easily select desired parameters and readouts with a touch of a button. The 66203 and 66204 meters also include remote control using USB or GPIB interfaces via rear panel connections. Chroma provides optional software for increased operational efficiency and reporting.
The advanced graphical software package controls and captures measurement data via standard computer interfaces such as GPIB, and USB. Graphical panels are especially useful when performing industry standards testing such as pre-compliance testing of harmonic current limits to IEC61000-3-2 or Energy Star® requirements. The software can also control Chroma’s AC Sources and Electronic Loads for added ease of use. For more information on these power meters, click here or call us at (949) 600-6400.