Frequency conversion series resonance withstand voltage test device system

The complete test system consists of a frequency modulation main unit, a reactor, a voltage divider, an excitation transformer, a connecting wire, an isolating transformer (optional device) and a compensating capacitor (optional device). After the test object is connected, a resonant system is formed for communication. Pressure test. Host: It is a sine wave AC power supply with adjustable amplitude and frequency. It provides excitation source for the resonant circuit and provides functions such as voltage display, current display, timing, protection and alarm. Reactor: It is a large inductor coil, which is connected with the test object (equivalent to capacitor) to form a series resonant circuit. The reactor can be equipped with multi-section reactors. When used, different series and parallel combinations can be used to achieve different inductances. Different test conditions. Voltage divider: The internal voltage is divided by the capacitor, and the low voltage is obtained from the high voltage of the sample for the host to measure and control. Excitation transformer: isolates the host power supply from the resonant tank power supply and raises the output voltage of the host. Compensation capacitor: When the capacitance of the sample is very small, if the power frequency that may be required to achieve system resonance exceeds the test standard, a compensation capacitor can be connected in parallel with the sample to achieve the test requirement. The capacitor is called a compensation capacitor.

Tier 1 Solar Panel

Chinese Tier 1 brand Solar Panel (Longi, Jinko, Trina, Canadian, Ja etc.)

This type of product is mainly Tier 1 solar module product in China, include Longi solar panel. Jinko solar panel, Canadian Solar panel, ja solar panel etc.all of which are among the top 10 world-renowned brands. The original A grade product is mainly mono crystalline and half cut cell solar modules, with a power range of 400watts to a maximum of 700watts.quality warranty is 25 years.

A grade, this type of film is characterized by a neat and uniform appearance, printed electrode grid lines, no broken grid, no surface stains, no leakage, no aluminum package, no hidden cracks, no scratches, no black core, no reverse current, stable electrical performance, and high conversion efficiency
Using solar cell testing equipment to measure and screen, the conversion efficiency, filling factor, and appearance that meet certain standards are first level. Generally, the conversion efficiency, filling factor, and appearance of first level are better than those of level B
The level of solar panels can be divided into first level, second level, third level, and fourth level, and the first level components can be divided into first level+and first level - two levels. The second level is also the same, and the cost difference between different levels of solar panels is also very large.

Chinese tier 1 brand solar panel

TIER 1 brand include	Longi, Jinko, Trina, JA, Canadian, znshine, etc.
quality warranty	25 years
grade	original A grade (each solar panel can be checked on official website with barcode)
power range	400watt to max 700watt

Tier 1 Solar Panel,Mono Solar Panel N Type,Solar Panels Bifacial 555 Watt,Solar Panel Mono Topcon Cell

PLIER(Suzhou) Photovoltaic Technology Co., Ltd. , https://www.pliersolarpanel.com