Defining Voltage dip generator NEMA MG1-16.48 defines voltage dip as the greatest voltage difference from the rated generator output voltage. Inrush currents at motor start-up or large block loads limit engine speed and lower excitation to the main field generate these dips. Because the causes and solutions for instantaneous voltage dips differ from those for block loads, they are measured and ana...
The voltage dip and interruptions generator is specially designed according to the characteristics and requirements of EMS measurement under a sudden reduction or interruption of the voltage at a point. CSS61000-11/ CSS61000-11T uses a big LCD touch screen in both English and Chinese operating interface. It has better performance such as high reliability, convenient operation. It fully meets the s...
LISUN engineer went to Egypt in December 2018 to provide on-site installation & training services for customers there. During the period, we held a lighting testing technology salon in Glorious Hotel (Cairo, Egypt). LISUN senior engineer Mr. Jacky Jiang shared the following topic there: 1. How to get improve the lumen test accuracy in integrating sphere 2. How to update your LED driver design...
LISUN engineer went to Iran in December 2018 to provide on-site installation & training services for customers there. And held Lighting Testing Technology Salon on 25th afternoon and 26th afternoon. LISUN senior engineer Mr. Jacky Jiang shared the following topic there: 1. How to get improve the lumen test accuracy in integrating sphere 2. How to update your LED driver design to meet the EMC...
LISUN engineer went to Saudi in December 2018 to provide on-site installation & training services for customers there. During the period, we held a lighting testing technology salon in our engineer’s Hotel in Riyadh. LISUN senior engineer Mr. Jacky Jiang shared the following topic there: 1. How to get improve the lumen test accuracy in integrating sphere 2. How to update your LED driver des...
LED package is mainly to provide a platform for LED chips, so that LED chips have better performance of light, electricity and heat. Good packaging can make LEDs have better luminous efficiency and good heat dissipation environment, and good heat dissipation environment can enhance LEDs. The service life. LED packaging technology is mainly built on five main considerations, namely optical extracti...
This page is a brief introduction and description for conducted immunity testing which based on IEC 61000-4-4 fast transient burst test, IEC 61000-4-5 lightning surge test, IEC 61000-4-11 voltage cycle drop test and IEC 61000-4-12 ring wave test. IEC 61000-4-4 establishes a common and reproducible reference for evaluating the immunity of electrical and electronic equipment when subjected t...
On January 31, 2018, Lighting Poland 2018 arrived on schedule. LISUN has already prepared well for this exhibition. Our booth address is Hall 4 Booth C25 and D26. Our engineers came here two days in advance to prepare the booth. The exhibition lasts three days and ended on the afternoon of February 2. We met old customers and also some new faces during the three days. Our test instruments won the ...
With the widespread use of electrical and electronic equipment, the problem of electromagnetic disturbance has also brought electromagnetic pollution. EMC(Electro Magnetic Compatibility) refers to the ability of a device or system to operate within its electromagnetic environment without incurring unacceptable electromagnetic interference to any device in its environment. EMC testing, one the one ...
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