WEG CFW900 - Definitions of Derating Factors; Introduction

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TECHNICALSPECIFICATIONS
Table8.8:Current,powerandlossdataforT4lineand“HD”overloadclass
HDoverloadclass:
150%for60secondswitha5-minuteinterval
200%for3secondswitha5-minuteinterval
Inverterlossdataas
perIEC61800-9-2
(1)
Invertermodel
Typicalmotor
(2)
Dissipatedpower
forsizingthe
panel
Rated
apparent
power
Rated
output
current
380V/60Hz400V/50Hz440V/60Hz460V/60Hz
NEC
Table
460V
Inverter
complete
Front
part
400V
Lossesat
ratedcondition
/
Apparentpower
Io,nom(HD)P,nomP,nomP,nomP,nomP,nomPL(inv)PL(inv2)SopL(90,100)
[Arms][CV][kW][hp][hp][hp][W][W][kVA][%]
CFW900A02P8T42.411.11.51.5160291.63.6%
CFW900A03P6T42.81.51.11.52161301.93.2%
CFW900A04P8T43.921.523276312.72.8%
CFW900A06P5T45.332.233392343.72.5%
CFW900A09P6T4843555122395.52.2%
CFW900A14P0T4126.05.57.57.57.5172458.32.1%
CFW900A17P0T4177.57.512.510102365411.82.0%
CFW900B26P0T42112.51112.515153077415.22.1%
CFW900B33P0T42812.5112020203427919.41.8%
CFW900B39P0T43320152025203978722.81.8%
CFW900C50P0T4402018.520303054011828.42.0%
CFW900C62P0T450202220403058012434.61.7%
CFW900C74P0T462403040504070814642.91.7%
CFW900D96P0T475503760605086215851.91.7%
CFW900D0124T41036055757575115219871.41.7%
CFW900D0146T4124755575100100137923285.91.7%
CFW900E0172T4146100751251251001500297101.21.5%
CFW900E0203T4161100901251251251609311108.11.5%
CFW900E0242T4190125901501501501908350131.61.5%
(1)
ThedissipatedpowerforsizingthepanelmustbeconsideredthesamespecifiedfortheNDoverloadclassaccordingto
Table8.7.
(2)
RatedpowervaluesdefinedbasedontheratedcurrentofWEGmotorsattheindicatedvoltages.
Item8.1.4indicatesthemaximuminverter
ambienttemperatureconsideredforchoosingthemotor.
ThepermissibleoverloadclasscurvefortheinvertersoftheCFW900lineareshownin
Figure8.1.
!
WARNING!
Applyoneoverloadeveryfiveminutesatmost.
100%
120%
140%
160%
180%
200%
220%
240%
0 10 20 30 40 50 60 70 80 90 100 110 120
I
nom
(%)
t (s)
100%
110%
120%
130%
140%
150%
160%
0 10 20 30 40 50 60 70 80 90 100 110 120
I
nom
(%)
t (s)
Normal Duty Cycle
Heavy Duty Cycle
Figure8.1:Permissibleoverload
8.2DEFINITIONSOFDERATINGFACTORS
8.2.1Introduction
Thisitemofthemanualdealswiththederatingthatshouldbeconsideredwhensizingtheinverter.Incaseswhere
morethanoneconditionrequiretheoutputcurrentderating,thefactorsmustbemultipliedaccordingtotheequation
below:
CFW900|101