IC697ALG445功率因數(shù)

分布式供電無(wú)法實(shí)現(xiàn)
一種可行的解決方案是，盡量縮短低壓直流傳輸導(dǎo)線的長(zhǎng)度，將交流/直流電源設(shè)置在負(fù)載附近。 但這需要改變整個(gè)系統(tǒng)的供電方式，由“集中供電”改為“分布供電”，需要安排更多的交流“取電 點(diǎn)”，或者采用長(zhǎng)距離的 230Vac 或 400Vac 交流傳輸線。在很多應(yīng)用中，考慮到低壓要求或系統(tǒng) 設(shè)計(jì)要求等，無(wú)法實(shí)行這種方案。


普通的直流/直流轉(zhuǎn)換器方案
另一個(gè)可行的解決方案是在長(zhǎng)距離低壓直流導(dǎo)線末端串入一臺(tái)直流/直流轉(zhuǎn)換器，作為“電壓補(bǔ)償 器”，以補(bǔ)償導(dǎo)線上的壓降引起的電壓波動(dòng)。并不是所有的直流/直流轉(zhuǎn)換器都適用于此類應(yīng)用，非常 重要的是，
1) 直流/直流轉(zhuǎn)換器要有較寬的輸入電壓范圍，允許的輸入低電壓要很低。
2) 直流/直流轉(zhuǎn)換器自身不能有過(guò)的輸入(起動(dòng)) 電流需求。


PULS 普爾世的電壓補(bǔ)償器 CD5.241-L1
PULS 普爾世在開(kāi)發(fā)電壓補(bǔ)償器“CD5.241-L1 ”時(shí)，認(rèn)真考慮了這些應(yīng)用需求，設(shè)計(jì)了 14-35Vdc的寬輸入電壓范圍，和主動(dòng)式浪涌電流以及“軟”起動(dòng)功能以避免普通直流/直流轉(zhuǎn)換器起動(dòng)時(shí)的 輸入峰值電流?？梢韵率鰬?yīng)用為例來(lái)說(shuō)明它的特性。


Westinghouse Type SL 25MVA Transformer REP-12901 145KV highside 34.5KV lowside
WPBFV4 WESTINGHOUSE CUTLER-HAMMER On/Off/Auto/Reset
WPBFV4 WESTINGHOUSE Adv Cont Module Full Voltage Starters On/Off/Auto/Reset
WL 8094/199 High Voltage Rectifier Tube
WHU364SS Westinghouse Hey Duty Safety Switch 200 Amp 3 Pole 600V
WHU363SS Westinghouse Hey Duty Safety Switch 100 Amp 600V No Fuse
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WH CH Westinghouse Circuit Breaker KDB3400W 400A KDB
WH CH Westinghouse Circuit Breaker KD3400K 400A 600V
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WH CH Westinghouse Circuit Breaker KD3400 400A 600V
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Westinhouse Numalogic NLRH-708P Programmable Controller w/ Input Output & Source
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WESTINGHOUSE/INGERSOLL RAND, MOTOR CONTROL, SIZE 5, 2045A40G05
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WESTINGHOUSE, MAGNETIC STARTER, 764A890G01, SIZE 4, 135 AMPS
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