電源選型推薦

整個(gè)DTU系統(tǒng)的電源解決方案，主要考慮到不間斷供電的問(wèn)題，所以需要雙電源供電的一個(gè)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(gè)電源一般兩路輸出，一路給后級(jí)的板卡進(jìn)行供電，一方面給后級(jí)的蓄電池或者是超級(jí)電容進(jìn)行充電；另外的一部分就是蓄電池或者超級(jí)電容，這個(gè)主要是在市電斷電的情況下，保證整個(gè)系統(tǒng)的正常運(yùn)行。另外，電網(wǎng)對(duì)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(jí)的要求。主電源和蓄電池都掉電時(shí)，系統(tǒng)掉電保持時(shí)間500mS以上。

根據(jù)上面的應(yīng)用描述，我們推薦選用金升陽(yáng)MBP500-2A54D54的接線式電源，它具備電池充電功能，可對(duì)48V 鉛酸電池充電；工業(yè)級(jí)工作溫度：-40℃～+70℃；2500VAC 高隔離電壓；大瞬時(shí)過(guò)功率達(dá)540W；優(yōu)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(yáng)公司的MBP300-2A27D27的接線式電源，可對(duì)24V的鉛酸電池充電，穩(wěn)態(tài)功率達(dá)到351W。
電源是各種電子設(shè)備必不可缺的組成部分,其性能優(yōu)劣直接關(guān)系到電子設(shè)備的技術(shù)指標(biāo)及能否安全可靠地工作。目前常用的直流穩(wěn)壓電源按功率管的工作方式分為線性電源和開(kāi)關(guān)電源兩大類。線性穩(wěn)壓電源亦稱串聯(lián)調(diào)整式穩(wěn)壓電源,電路技術(shù)比較成熟。具有低紋波、高穩(wěn)壓性能等優(yōu)點(diǎn)。但由于必須使用工頻變壓器,且調(diào)整管工作在線性放大區(qū),因而體積大和重量大、效率低。開(kāi)關(guān)電源調(diào)整管工作在高頻開(kāi)關(guān)狀態(tài),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(lái)實(shí)現(xiàn)電壓變換和電網(wǎng)隔離。
為解決傳統(tǒng)的PWM型變換器的上述問(wèn)題,可采用諧振、準(zhǔn)諧振、多諧振以及具軟開(kāi)關(guān)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(shù)或外加電感、電容作為諧振參數(shù),使變換器中的功率開(kāi)關(guān)在零電壓或零電流下開(kāi)通和關(guān)斷,開(kāi)關(guān)兩端的電壓或經(jīng)過(guò)開(kāi)關(guān)的電流是正弦或半正弦波形。因此大大減少開(kāi)關(guān)的瞬問(wèn)損耗和開(kāi)關(guān)應(yīng)力以及電磁干擾和射頻干擾.使其工作頻率可進(jìn)一步提高到1Mhz以上，效率達(dá)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(shù)以及散熱方式的改進(jìn)，就使電源系列、標(biāo)準(zhǔn)化、模塊化成為現(xiàn)實(shí)。

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 Transber HV 4160 LV 480Y/277 Digital Temp Controller
Olsun 1500/2000 KVA Dry Transber HV 4160 LV 480Y/277 Digital Temp Controller
Olsun 1500/2000 KVA Dry Transber 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
 CUTLER-HAMMER 2000A BREAKER RD320T35WABQ02 IN BOX
 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
 Cutler Hammer Eaton W200M5CFC 3p Size 5 Non-Reversing Starter 1-yr Warranty
 CH RDC320T36W
 CH RD325T33W
 CH RD320T32W
 CH RD316T33W
 CH PC33000F
 CH PB32500F
 CH CRD320T33W
 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
Eaton/Cutler-Hammer HVX250A2-4A1N1-G 250HP AC VS Drive 480V 300A 250 HP /NIB
Eaton/Cutler Hammer Pow-R-Line C 3phase 3wire 480v 800amp Main Breaker Nema 3R
Eaton Cutler-Hammer Pow-R-Way III Busway Lot - 
Eaton Cutler-Hammer Pow-R-Line 2500A Breaker Panel 3R 2500 Amp Main RD325T33W CH
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
CUTLER-HAMMER MDSC32 3200A FRAME CIRCUIT BREAKER 520M 3000A LSI TRIP
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
Cutler Hammer/Westinghouse PCG32500F Circuit Breaker
Cutler Hammer/ABB 3750/5000KVA 13,800-480Y/277 Dry Transber
Cutler Hammer Westinghouse Eaton CHKD3125T106W 125 A 65kA Circuit Breaker Frame
Cutler Hammer W210M6CFC Horizontal Reversing Starter  **GENUINE** Eaton
CUTLER HAMMER W201KGCFZ1  W201KGCFZ1
CUTLER HAMMER W201K5CF  W201K5CF
Cutler Hammer W200M5CFC  **GENUINE** Eaton Westinghouse
Cutler Hammer VCP-WR 1200 Amp 15kV Vacuum Circuit Breaker AM-13.8-VR-500 240V 5
Cutler Hammer Vacuum Circuit Breaker 150VCP-W500 15 KV 2000 Amp 3776A21G02 
Cutler Hammer Vacuum Circuit Breaker 150VCP-W500 15 KV 1200 Amp 3A73950G02 
CUTLER HAMMER Vacuum Breaker 150 VCP-W 750, 1200 Amp / Switchgear switch circuit
Cutler Hammer VacClad-W Metal Clad Switchgear 1200A 15KV Main-Tie-Main
CUTLER HAMMER SVX200A1-4A1N1  SVX200A14A1N1
CUTLER HAMMER SVX200A1-4A1N1  SVX200A14A1N1
CUTLER HAMMER SV9NCLWCN  SV9NCLWCN
CUTLER HAMMER SV9250AN-5M0A00  SV9250AN5M0A00
CUTLER HAMMER SV9150ADV5M0A00C1  SV9150ADV5M0A00C
CUTLER HAMMER SV9075AN-5M0A32  SV9075AN5M0A32
CUTLER HAMMER SV9050AP-5M0A32  SV9050AP5M0A32
Cutler Hammer Substatoin Lineup 2000/2667KVA 13,800-480Y/277V 3,200Amp 4Wire
Cutler Hammer SPB100 4000A LSIG SPBR340R w. Digitrip RMS RP6S40A400 - Warranty
CUTLER HAMMER SPB 100 SPBR340R 4000 A CIRCUIT BREAKER
CUTLER HAMMER SPB 100 3000 AMP MO DO LSIG 1 YEAR WARRANTY
Cutler Hammer Solid State Exciter Panel Size 6 4AF9497306 Motor Controller,