電觸頭壽命 的英文怎麼說
中文拼音 [diànchùtóushòumìng]
電觸頭壽命
英文
contact life-
The crust of carrying parts adopts flame - resistant engineering plastic which has excellent electric property and high safety coefficient. all contacts adopt noble metal, so it has no arc and has long life. and the carrying parts adopt high - conductance excellent copper and high - flexibility material
本產品面板採用高級防彈膠，載流零件殼體採用阻燃工程塑料，電性能優越，安全率數高，觸頭全部採用貴金屬觸點，不起弧，壽命長，載流零件選用高導率的優良銅材和高彈性材料，產品性能得以充分保證On - line monitoring of hvcb is the precondition of predicting maintenance, is the key element of reliable run, and is the important supplement to the traditional off - line preventive maintenance in fact, the faults are made by hvcb, no matter in number or in times, is over 60 % of total faults so it has determinative importance for improving the reliability of power supply and this can greatly decrease the capital waste used by - dating overhaul in this paper, the inspecting way of hvcb mechanism characteristic is discussed the concept of sub - circuit protector is presented, the scheme that we offered has been combined with sub - circuit integrality monitoring theory, to ensure that it has the two functions as a whole according the shut - off times at rated short circuit given by hvcb manufacturer, the electricity longevity loss can be calculated in each operation, and the remained longevity can be forecast too an indirect way for calculating main touch ' s temperature by using breaker shell temperature, air circumference temperature and breaker ' s heat resistance is improved in this paper, and main touch resistance can be calculated if providing the load current msp430, a new single chip microcomputer made by ti company, is engaged to develop the hardware system of the on - line monitoring device, and special problem brought by the lower supply voltage range of this chip is considered fully
高壓斷路器所造成的事故無論是在次數，還是在事故所造成的停電時間上都占據總量60以上。因此，及時了解斷路器的工作狀態對提高供電可靠性有決定性意義；並可以大大減少盲目定期檢修帶來的資金浪費。本文論述了斷路器機械特性參數監測方法；提出了二次迴路保護器的概念，並將跳、合閘線圈完整性監視和二次迴路保護結合起來，給出具有完整性監視功能的二次迴路保護器實現方案；根據斷路器生產廠家提供的斷路器額定短路電流分斷次數，計算每次分閘對應的觸頭電壽命損耗，預測觸頭電壽命；提出根據斷路器殼體溫度和斷路器周圍空氣溫度結合斷路器熱阻來計算斷路器主觸頭穩態溫升的方法，並根據此時的負荷電流間接計算主觸頭迴路的電阻；在硬體電路設計上，採用美國ti公司最新推出的一種功能強大的單片機msp430 ，並充分考慮該晶元的適用電壓范圍給設計帶來的特殊問題；在通信模塊的設計中，解決了不同工作電壓晶元之間的介面問題，並給出了直接聯接的接線方案。Through the results, the electrical life of the five kinds of contact materials under different conditions when they are symmetrically matched were analyzed and studied from the loss of quality and extent of cracks, and they were compared with the electrical life of the same material under the same conditions when they are asymmetrically matched this will guide the selection of materials used in switching apparatus
通過實驗結果，從觸頭質量損失量和觸頭表面出現裂紋的程度兩方面分析和研究了它們對稱配對時在不同條件的電壽命，並和相同條件下同種材料非對稱配對時的電壽命進行比較，從而為開關電器中材料的合理使用提供指導。
分享友人