J40UCM
specifications and design liable to modifications without prior notice
3/5
ALTERNATOR SPECIFICATIONS
GENERAL DATA
·
Compliance with NEMA MG21, UTE NF C51.111, VDE 0530, BS
4999, CSA standards.
·
Vacuum-impregnated windings with epoxy varnish.
·
IP21 drip proof.
ALTERNATOR DATA
Manufacturer / Type
Number of phase
Power factor (Cos Phi)
Altitude
Overspeed
Pole : number
Exciter type
Insulation : class, temperature rise
Voltage regulator
Sustained short circuit current
Total harmonics (TGH/THC)
Wave form : NEMA = TIF – TGH/THC
Wave form : CEI = FHT – TGH/THC
Bearing : number
Coupling
Voltage regulation 0 to 100% load
Recovery time (20% Volt dip) ms
SkVA with 90 % of nominal sustained voltage (at 0.4 PF)
LEROY SOMER LSA432M45
3
0.8
< 1000 m
2250 rpm
4
Shunt
H / H
R230
-
< 4%
< 50
< 2%
1
Direct
+/- 1%
500 ms
N/A
OTHER ALTERNATOR DATA
Continuous nominal rating @ 40°C
Standby rating @ 27°C
Efficiencies @ 4/4 load
Air flow
Short circuit ratio;50 (Kcc)
Direct axis synchro reactance unsaturated (Xd)
Quadra axis synchro reactance unsaturated (Xq)
Open circuit time constant;50 (T’do)
Direct axis transient reactance saturated (X’d)
Short circuit transient time constant (T’d)
Direct axis subtransient reactance saturated (X’’d)
Subtransient time constant (T’’d)
Quadra axis subtransient reactance saturated (X’’q)
Zero sequence reactance unsaturated (Xo)
Negative sequence reactance saturated (X2)
Armature time constant (Ta)
No load excitation current (io)
Full load excitation current (ic)
Full load excitation voltage (uc)
Recovery time (Delta U = 20% transitoire)
Motor start (Delta = 20% perm. Or 50% trans.)
Transient dip (4/4 charge) – PF : 1.8 AR
No load losses
Heat rejection
65 kVA
78 kVA
89.8 %
0.32m3/s [678.04cfm]
0.39
300 %
180 %
1270 ms
11.8 %
50 ms
5.9 %
5 ms
7.3 %
0.5 %
6.6 %
8 ms
0.4 A
1.6 A
29 V
500 ms
225 kVA
15.3 %
1.64 kW
6.42 kW