Product Card

KD77
ALTERNATOR CHARACTERISTICS
GENERAL DATA
Alternator type KH00941T
Number of Phase
Three phase
Power factor (Cos Phi)
0.8
Altitude (m)
0 to 1000
Overspeed (rpm)
2250
Number of pole
4
Capacity for maintaining short circuit at
3 ln for 10 s
Yes
Insulation class
H
T° class (H/125°), continuous 40°C
H / 125°K
T° class, standby 27°C
H / 163°K
AVR Regulation
Yes
Total Harmonic Distortion in no-load
DHT (%)
3.1
Total Harmonic Distortion, on load DHT
(%)
1.8
Wave form : NEMA=TIF
<45
Wave form : CEI=FHT
<2
Number of bearing
1
Coupling
Direct
1
200
Voltage regulation at established rating
(+/- %)
Recovery time (Delta U = 20%
transient) (ms)
Protection class
Technology
IP 23
Without collar or
brush
OTHER DATA
Continuous Nominal Rating 40°C (kVA)
75
Standby Rating 27°C (kVA)
83
Efficiencies 100% of load (%)
90.4
Air flow (m3/s)
0.2
Short circuit ratio (Kcc)
0.36
Direct axis synchro reactance unsaturated (Xd) (%)
322
Quadrature-axis synchro reactance unsaturated (Xq)
(%)
Open circuit time constant (T'do) (ms)
1270
Direct axis transient reactance saturated (X'd) (%) 12.8
71
7.5
14
31.4
Short circuit transient time constant (T'd) (ms)
Direct axis subtransient reactance saturated (X''d) (%)
Subtransient time constant (T"d) (ms)
Quadrature-axis subtransient reactance saturated
(X"q) (%)
Subtransient time constant (T"q) (ms)
17
Zero sequence reactance unsaturated (Xo) (%) 3.82
Negative sequence reactance saturated (X2) (%) 22.5
Armature time constant (Ta) (ms)
32
No load excitation current (io) (A) 0.66
Full load excitation current (ic) (A)
1.98
22.5
240
Full load excitation voltage (uc) (V)
Engine start (Delta U = 20% perm. or 50% trans.)
(kVA)
Transient dip (4/4 load) - PF : 0,8 AR (%)
14.3
No load losses (W)
1370
Heat rejection (W)
6372
DIMENSIONS
M128
2300
1060
1680
1548
180
74
Dimensions soundproofed version
Commercial reference of the enclosure
Length (mm)
Width (mm)
Height (mm)
Dry weight (kg)
Tank capacity (L)
Acoustic pressure level @1m in dB(A)
Sound power level guaranteed (Lwa)
Acoustic pressure level @7m in dB(A)
91
Dimensions DW compact version
Commercial reference of the enclosure
-
2344
1060
1579
1362
390
-
Length (mm)
Width (mm)
Height (mm)
Dry weight (kg)
Tank capacity (L)
Acoustic pressure level @1m in dB(A)
Sound power level guaranteed (Lwa)
Acoustic pressure level @7m in dB(A)
-
This document is not contrac
tual - Kohler Co. reserves the right to modify any of the characteristics without notice, in a constant effort to improve the quality of its products.
GBD5-03005 (KD77) 03/17
124.9
Unbalanced load acceptance ratio (%)
100
62
-
M128 DW
2344
1060
1900
1735
390
73
Dimensions DW soundproofed version
Commercial reference of the enclosure
Length (mm)
Width (mm)
Height (mm)
Dry weight (kg)
Tank capacity (L)
Acoustic pressure level @1m in dB(A)
Sound power level guaranteed (Lwa)
Acoustic pressure level @7m in dB(A)
91
Dimensions DW 48h soundproofed version
M128 DW48
2344
1060
1989
1765
700
73
Commercial reference of the enclosure
Length (mm)
Width (mm)
Height (mm)
Dry weight (kg)
Tank capacity (L)
Acoustic pressure level @1m in dB(A)
Sound power level guaranteed (Lwa)
Acoustic pressure level @7m in dB(A)
91
62
62