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電源選型推薦

整個DTU系統的電源解決方案，主要考慮到不間斷供電的問題，所以需要雙電源供電的一個供電形式，主流的供電方式一般是有兩部分組成，一部分是大功率300W或者500W的AC/DC充電電源，這個電源一般兩路輸出，一路給后級的板卡進行供電，一方面給后級的蓄電池或者是超級電容進行充電；另外的一部分就是蓄電池或者超級電容，這個主要是在市電斷電的情況下，保證整個系統的正常運行。另外，電網對于EMC方面的要求比較苛刻，特別是浪涌方面，需要完全滿足4級的要求。主電源和蓄電池都掉電時，系統掉電保持時間500mS以上。

根據上面的應用描述，我們推薦選用金升陽MBP500-2A54D54的接線式電源，它具備電池充電功能，可對48V 鉛酸電池充電；工業級工作溫度：-40℃～+70℃；2500VAC 高隔離電壓；大瞬時過功率達540W；優越的EMC性能；接線式安裝。

另外，如果鉛酸電池的電壓值為24V，還可以選用金升陽公司的MBP300-2A27D27的接線式電源，可對24V的鉛酸電池充電，穩態功率達到351W。
電源是各種電子設備必不可缺的組成部分,其性能優劣直接關系到電子設備的技術指標及能否安全可靠地工作。目前常用的直流穩壓電源按功率管的工作方式分為線性電源和開關電源兩大類。線性穩壓電源亦稱串聯調整式穩壓電源,電路技術比較成熟。具有低紋波、高穩壓性能等優點。但由于必須使用工頻變壓器,且調整管工作在線性放大區,因而體積大和重量大、效率低。開關電源調整管工作在高頻開關狀態,功率損耗小,且使用小體積的高頻變壓器替代笨重的工頻變壓器來實現電壓變換和電網隔離。
為解決傳統的PWM型變換器的上述問題,可采用諧振、準諧振、多諧振以及具軟開關的PWM型變換器。這些變換器吸收、利用了PWM型變換器中的寄生參數或外加電感、電容作為諧振參數,使變換器中的功率開關在零電壓或零電流下開通和關斷,開關兩端的電壓或經過開關的電流是正弦或半正弦波形。因此大大減少開關的瞬問損耗和開關應力以及電磁干擾和射頻干擾.使其工作頻率可進一步提高到1Mhz以上，效率達90%以上。再加上小型片狀電子元器件,包括磁性材科,例如:平板型變壓器等以及表面安裝技術以及散熱方式的改進，就使電源系列、標準化、模塊化成為現實。

Cutler Hammer RD320T36W 2000 Amp 600 Volt Circuit Breaker LSIG
UN CUTLER-HAMMER SPB65 600V 2000A DIGITRIP L/S/I/G INSULATED CIRCUIT BREAKER
UN CUTLER-HAMMER MWI625 600V 2500A DIGITRIP 520 INSULATED CIRCUIT BREAKER
UN CUTLER-HAMMER MDSC50 600V 5000A DIGITRIP 520 INSULATED CIRCUIT BREAKER
UN CUTLER-HAMMER MDSC4N 600V 4000A DIGITRIP 520M INSULATED CIRCUIT BREAKER
UN CUTLER-HAMMER MDSC16 600V 1600A DIGITRIP 520M INSULATED CIRCUIT BREAKER
UN CUTLER-HAMMER MDS616 600V 1600A DIGITRIP 1150 INSULATED CIRCUIT BREAKER
UN CUTLER-HAMMER DISTRIBUTION TRANSFORMER 400 KVA 4160 480Y/277 MCH03236
UN CUTLER HAMMER 2500 KVA DRY TYPE TRANSFORMER
SQUARE D PEF1636LSIG - 1600 AMP - PE161600RP PEF 1636LSIG CIRCUIT BREAKER
SL50W430 Cutler Hammer Contactor Vacuum 4160 Volt RM
RX-1857, EATON CUTLER-HAMMER MDS850 MAGNUM DS 5000 AMP DIGITRIP CIRCUIT BREAKER
RD325T33W Cutler Hammer Circuit Breaker 3 Pole 2500 Amp Max 600V ( In Box)
RD320T32W CUTLER HAMMER Circuit Breaker 2000A LSI 65K RES2000LSI 20RES10T
PERFECT CUTLER HAMMER SERIES C RD316T36W W/ DIGITRIP 310 TRIP UNIT RES1600LSIG
Olsun 2500/3333 KVA Dry Transformer HV 4160 LV 480Y/277 Digital Temp Controller
Olsun 1500/2000 KVA Dry Transformer HV 4160 LV 480Y/277 Digital Temp Controller
Olsun 1500/2000 KVA Dry Transformer HV 4160 LV 240/120 Digital Temp Controller
 MAGNUM DS MDS8403WEA AC POWER CIRCUIT BREAKER MDS840
 LISTING CUTLER HAMMER 149D835G01 M300 AC VOLTAGE ERROR DETECTOR REV B REV 08 
 EATON CUTLER-HAMMER 2000A BREAKER RDC320T107W  IN BOX
 EATON CUTLER-HAMMER 2000A BREAKER RD320T33W  IN BOX
 EATON CUTLER HAMMER 5485K-AC PMPP 5000 OPERATOR INTERFACE W/ 63-00375-02
 EATON CUTLER HAMMER 1600 AMP POW-R-LINE SWITCHBOARD 3R OUTDOOR 2 SECTIONS
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 CUTLER-HAMMER 2000A BREAKER CRD320T35WABQ02
 Cutler Hammer W200M5CFC Size 5 NEMA Starter *1 YEAR WARRANTY*
 Cutler Hammer SMV801B24N3S 5.0kV / 240A Medium Voltage IT Soft Starter
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 CH RD316T33W
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 CH CRD316T33W
ND312T35W CUTLER HAMMER BREAKER FRAME W/600A RATING PLU
MDSC303HEA305GAMNN2E MDS303HEA305GAMNN2E
MDSC303HEA 305GAMNN2E CUTLER HAMMER MAGNUM DS 3000 AMP 635 V MDSC303 MDS303
Magnum MDC30 3000 AMP  CIRCUIT BREAKER CUTLER HAMMER LSIG
HERMETIC CENTRIFUGAL REFRIGERATION
EATON/Cutler-Hammer SVX9000 Series VFD PX0650402N 380-500V 650Amp - SPX9000
EATON/Cutler-Hammer SVX9000 Series VFD PX0590402N 500HP 380-500V 590Amp
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Eaton/Cutler Hammer Pow-R-Line C 3phase 3wire 480v 800amp Main Breaker Nema 3R
Eaton Cutler-Hammer Pow-R-Way III Busway Lot - 
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Eaton Cutler-Hammer CPS250208YAG One Year Warranty !
EATON CUTLER HAMMER VR SERIES VACUUM CIRCUIT BREAKER 50DH-VR-250 1200 AMP 
Eaton Cutler Hammer SV9150AN-6M0B00 150HP AC Drive SV9000 150 HP , 575 VAC
EATON CUTLER HAMMER MDS8403WEA 4000 AMP 600 VOLT 3 POLE CIRCUIT BREAKER --SES
EATON CUTLER HAMMER MDS8203WEA 2000 AMP 600 VOLT 3 POLE CIRCUIT BREAKER --SES
EATON CUTLER HAMMER 750 KVA 480 DELTA 208Y/120 TRANSFORMER V48M28T77EE 750KVA
Eaton Cutler Hammer 50VCP-TR25 Circuit Breaker
EATON CUTLER HAMMER 400 750 900 HP SOFT START T811V65N3D 1200 AMP CNDC312T33W
EATON CUTLER HAMMER 150VCP-TR25 vacuum circuit breaker
Eaton / Cutler-Hammer RD325T33W - Certified Reconditioned
Cutler-Hammer Type SL50W430, Model C, 400 amp, 2400 VAC Vacuum Contactor
Cutler-Hammer SV9100AN-6M0B30 SV9000 Series 100HP 100 HP Drive
Cutler-Hammer SPB65 600V 2000Amp DIGITRIP810 LSIG INSULATED CASE CIRCUIT BREAKER
Cutler-Hammer SPB100 600V 2000 Amp RMS 810 LSIG INSULATED CASE CIRCUIT BREAKER
Cutler-Hammer SL50W430 Vacuum Contactor
Cutler-Hammer SJS50VW430 Vacuum Contactor
Cutler-Hammer SCB56074 Pow-R-Line Switchboard 3 Sections with (2) CRDC320T36W
Cutler-Hammer S610SBE 964HP 4160V 120FLA Ampgard Medium Voltage Motor Control MV
Cutler-Hammer P3BHMDL3800N Pow-R-Way III Busway Circuit Breaker Enclosure
Cutler-Hammer P3BHMDL3800 Pow-R-Way III Busway Circuit Breaker Enclosure - 
Cutler-Hammer P3BHMDL3800 800Amp Pow-R-Way III Busway CB Plug -  Surplus
CUTLER-HAMMER MDSC5N 5000A FRAME CIRCUIT BREAKER DIGITRIP 520M LSI 4000A TRIP
CUTLER-HAMMER MDSC50 5000A FRAME CIRCUIT BREAKER DIGITRIP 520 LSIG
CUTLER-HAMMER MDSC4N 4000A FRAME CIRCUIT BREAKER W/ DIGITRIP 530
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CUTLER-HAMMER LCX205A0-4A2N1 AC DRIVE 380-500V ***XLNT***
Cutler-Hammer DS II-840 4000A Digitrip RMS LSG E/O 120VAC Breaker DSII-840 DS2
Cutler-Hammer BPD5007S003 800Amp Pow-R-Way III Busway CB Plug -  Surplus
Cutler-Hammer BPD5007S002 800Amp Pow-R-Way III Busway CB Plug -  Surplus
Cutler-Hammer 150VCP-W500 1500V 1200Amp 1076776 MEDIUM VOLTAGE CIRCUIT BREAKER
CUTLER-HAMMER 150VCP-W500 15 KV 1200 Amp EO DO CIRCUIT BREAKER
CUTLER-HAMMER 150VCP W750 15KV 1200 Amp VACUUM CIRCUIT BREAKER
Cutler-Hammer / Westinghouse PB32500 - Certified Reconditioned
Cutler-Hammer / Westinghouse PB31600T -  Surplus
CUTLER-HAMMER # CRD316T35W 1600 AMP 
CUTLER-HAMMER - CRD320T66W - 2000 AMP LSIG CIRCUIT BREAKER S66LSIG - RP6R20A200
CUTLER HAMMERSPB 100 2500 AMP 4 POLE LSI MO BOLT IN 1 YEAR WARRANTY
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Cutler Hammer/ABB 3750/5000KVA 13,800-480Y/277 Dry Transformer
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Cutler Hammer VCP-WR 1200 Amp 15kV Vacuum Circuit Breaker AM-13.8-VR-500 240V 5
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CUTLER HAMMER SV9250AN-5M0A00  SV9250AN5M0A00
CUTLER HAMMER SV9150ADV5M0A00C1  SV9150ADV5M0A00C
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CUTLER HAMMER SPB 100 3000 AMP MO DO LSIG 1 YEAR WARRANTY
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