电流与电缆截面积对照表

Table 6-1:Cable Size Selection Table For MV Motors (6600V,3PH, 50HZ)

MV Motor Data(6600 V, 3PH, 50HZ)Maximum Allowable Cable Length [m] Motor Full load P.F. at Efficiency at Starting Starting125% Full Cable Core No.3/C1/C1/C1/C1/C1/C1/C1/C1/C1/C Output Current100% Load100% Load Current P.F.Load Current Nominal Cross

(kW)(A)(%)(%)(A)(%)(A)Section2535507095120150185240300

(mm2 )

Ampacities(A)84103127156189222250292341390

Resistance (R)

@60℃

60HZ(Ohm/km)0.8490.6120.4520.3120.2260.1780.1460.1160.0880.07

Reactance (X)

60HZ(Ohm/km)0.150.15540.170.1680.1580.1530.1510.150.1410.138

15746209742671535877461925495062691720468603997244 7598692.554.02611.2528954342363757943499500895455757601604866656069890

14171188762404332289415724945556422648427743587520 90108692.560.02612.5026059308133382139149450804910151840544375990462901

10901145201849524838319793804343401498785956667323 110138692.578.02616.2520045237022601630114346773777039877418754608048385

9448125841602921526277153297037615432285162358346 132********.02618.7517372205422254826099300533273434560362913993641934

8336111041414318993244542909133189381424555051482 150178693102.02621.2515329181251989523029265182888330494320223523837000

7873104871335717938230962747531345360234302048622 160188694108.02622.5014477171181879021749250442727928800302433328034945

674889891144915376197962355026868308773687441676 185218694126.02526.2512690149491634218850216562354924829260362861730019

644285801092914677188972248025646294743519839782 200228694132.02527.5012113142691559917993206712247823701248532731628655

52496991890511959153971831720897240152868032415 250278694.5162.02433.7510099118511290014827169941844919426203422233223403

45716089775610416134101595318201209172497928232 280318694.5186.02438.758796103211123612914148011606916920177171945020383

4294572072869785125981498617098196492346526521 300338694.5198.02441.25826396961055512131139041509515894166431827119148

3729496763278497109401301514848170642037823031 355388695.3228.02347.5073478586930610656121851320613887145201592116669

331444335680768299491189813643157791896421568 4004288.595.4252.02352.506647776884199642110251194812564131371440515081

296239625076686488911063212191141001694719273 4504788.595.4282.02358.75594069427524861698521067711228117401287313477

26773581458862048036961011019127451531717420 5005288.595.5312.02365.0053696274680077878904965010148106111163512181

2400321041135562720586169879114261373315618 5605888.595.6348.02372.50481356256097698279838652909895131043110921

2210295537875121663379329095105191264314378 6006388.595.6378.02378.7544315179561364287350796583768758960310054

207127723556481662467478858399411196413626 650678995.7402.02383.754167487052786044691174907876823590309454

24123094419154356506746886501041111856 750778995.8462.02396.25423745925259601365176853716678578226

2238287138885042603669298025965810999 800838995.8498.023103.75393142604879557960466358664872897631

270836674755569365357569910910374 850888995.8528.023110.0040184602526257035997627068757198

23133133406348645583646777838863 10001038995.9618.023128.7534333931449548725123535758746150

30553507406148885567 16001648996.1984.023205.0030603218336436893862

2870333340234595 20002029096.51212.023252.50 2612273129953136

296635804089 22502279096.61362.023283.75243126652790 *The above motor data are as per Japanese motor vendor's data.

NOTES:1: The cable lengeh in cable size selection table shows as follows:2: Allowable Running Voltage Drop: 3%.

Upper row: Maximum cable length based on the allowable voltage drop at normal operation. Allowable Starting Voltage Drop: 15%.

Lower row: Maximum cable length based on the allowable voltage drop at motor starting.3: Cable size for each KW rating shall be selected from the maximum allowable cable lengths

The shorter length shall be used for maximum cable length of the cable size.4: The cables are sized for125% full load current of the motors.

5. Cable type: YJV