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CECTN CAPACITOR25 years of high voltage aluminum electrolytic capacitor customized manufacturers
CECTN CAPACITOR25 years of high voltage aluminum electrolytic capacitor customized manufacturers
1. When alternating current is affected by pulsating voltage or ripple voltage and flows through equipment, RMS value is used to represent ripple current. The maximum allowable ripple current depends on the ambient temperature, the surface area of the capacitor (such as the heat dissipation area), the loss tangent Tan δ (or ESR) and the AC frequency. As thermal stress plays a decisive role in the life of aluminum electrolytic capacitors, the heat generated by ripple current is an important factor affecting the service life. These heat factors imply that in a particular ring
Due to the special properties of the aluminum oxide layer (which also acts as the insulating layer), even after the DC voltage is applied for a long time, a small current will continue to over flow, which is called leakage current. The smaller the leakage current is, the better the insulation performance is. 1. The time and temperature characteristics of the leakage current are shown in FIG. 15. In the first few minutes when the voltage is applied to the aluminum electrolytic capacitor, there is a strong leakage current, especially when no overvoltage is applied during long-term storage. In continuous work
As a new energy, solar energy can provide clean and pollution-free energy for our life. Because the current generated by photovoltaic power generation system is DC, but the civil power is mainly AC power supply, and solar power generation will eventually move to grid operation, which means that solar power generation must convert DC to AC through inverter to drive household appliances and other loads. Therefore, inverter plays an important role in solar power generation system.
Guimigong of Japan has released the "MHL series" of chip aluminum electrolytic capacitors, whose service life is twice longer than that of its previous products. It can work for 2000 or 4000 hours at + 125 ℃, extending the service life of the product to twice that of the previous "MVH series". This product is for the purpose of automobile ECU (electronic control unit), especially for ECU equipped in engine room. According to guimigong, the capacitor used for ECU in engine room is used in the resistance to
The 11th International Symposium on Chinas aluminum electrolytic capacitor market and development was held in Huangshan Golf Hotel, Anhui Province on November 25, 2014, with 20 participants including Nantong Jianghai, Shenzhen dongyangguang, Qingdao Sanying, Taiwan Fengbin, Changzhou Huawei, Xinjiang Zhonghe, Hunan Aihua, Xiamen EPCOS, Nantong Haixing, Foshan Sanshui riming, Zhaoqing Huafeng, Shenzhen xinzhoubang and Yangzhou Shengda 30 representatives from enterprises attended. During the meeting, representatives combined with the market and the current situation of the enterprise, to the current
Fe50 series aluminum electrolytic capacitor specification parameters (bolt 85 ℃ 5000h long life capacitor) application field uninterruptible power inverter solar and wind power generation equipment features all welded structure to ensure reliable electrical contact. High performance and high ripple resistance meet ROHS requirements, structure charge discharge protection, with polarity, aluminum shell and insulating jacket design, bolt type terminal, electrode connection with clasp / clamp or bolt installation, bolt assembly, and D ≤ 76.9mm model of bottom plate is not complete
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