Products:Three Phase Generator

Three Phase Generator MWL480 Series

The principles of a three phase generator are basically the same as that of a single phase generator, except that there are three equally-spaced windings and three output voltages. We supply different types of three phase generators: Open Diesel generator set, Soundproof Diesel Generator Set, Container Diesel Generator Set and Container Diesel Generator Set to meet your different requirement. If you have any question about our three phase generator, please call or Email us for more information.

14、Three Phase Generator MWL480 Series:
14.1 General Data

Environment temperature 40℃		Altitude≤1000m
Insulation Class	H	Excitation System	Self-excitation	PMG
Amount of Lead Wires	6	AVR Model	SMAVC63-7F
Winding Pitch	2/3	Static Voltage Regulation Rate	±0.5%	±0.5%
Protection Class	IP21	Recovery Time	≤1.0	≤1.0
Over Speed Capacity	2250RPM	Short-circuited Current Capacity	-	300% continues for 10s
Telephone Harmonic Factor (THF)	≤2%	Waveform Distortion Rate THD	＜4%	＜4%
Telephone Interference Factor (TIF)	＜50

14.2 Three phase 50Hz-1500r.p.m. Generator

Environment	Environment temperature 40℃ 3PH. 50Hz. 1500RPM P.F.=0.8 Altitude≦1000m
Temperature	40℃ Continuance				40℃ Standby				27℃ Standby
Insulation/Temp.Rise	H/125℃				H/125℃				H/163℃
Y △ YY	380V 220V	400V 230V	415V 240V	440V 220V	380V 220V	400V 230V	415V 240V	440V 220V	380V 220V	400V 230V	415V 240V	400V 220V
MWL345 48C KVA	1125				1181				1237
KW   KE	900				945				990
MWL345 48D KVA	1250				1312.5				1375
KW	1000				1050				1100
MWL345 48E KVA	1400				1470				1540
KW	1120				1176				1232
MWL345 48F KVA	1562				1640				1718
KW	1250				1312				1375
MWL345 48G KVA	1875				1950				2043.75
KW	1500				1560				1635
MWL345 48H KVA	2000				2080				2160
KW	1600				1664				1728
MWL345 48J KVA	2250				2317.5				2385
KW	1800				1854				1908
MWL345 48K KVA	2500				2550				2600
KW	2000				2040				2080
MWL345 48L KVA	2800				2855				2912
KW	2240				2284				2330

14.3 Other data: Class H/400V/40℃.

	48C	48D	48E	48F	48G	48H	48J	48K	48L
No-load excitation current self-excitation/PMG    A	1.0	1.0	1.1	1.1	1.1	1.1	1.2	1.15	1.25
Full load excitation current self-excitation /PMG    A	4.2	4.4	4.5	4.5	4.6	4.6	4.8	4.8	4.8
Efficiency (rated point) continuing    %	95.1	95.8	95.6	95.7	95.5	96.0	96.2	96.4	96.1
Efficiency (rated point) standby    %	95.8	96.3	96.2	96.3	95.9	96.6	96.9	97.1	96.8
Suddenly loaded capacity (P.F.=0.6△U=20% extended voltage falling or △U=50% transient voltage falling)	2372	2372	2372	2586	2586	2586	2845	2845	2845

Electrical Data: Reactance（%）Time Constant（ms）H/400V

		48C	48D	48E	48F	48G	48H	48J	48K	48L
Short circuit ratio	Kcc	0.46	0.39	0.38	0.43	0.41	0.40	0.42	0.40	0.42
Direct axis synchronous reactance	Xd	320	326	330	342	337	354	346	347	340
Quadrature axis synchronous reactance	Xq	195	201	201	192	207	210	211	208	205
Open circuit time constant	T′do	2480	2495	2375	2430	2490	2500	2500	2480	2500
Direct axis transient reactance	X′d	15.3	15.5	15.8	18.2	15.8	17.6	16.2	16.8	18.0
Transient current time constant	T′d	100	100	100	100	100	100	100	100	100
Direct axis super transient reactance	X″d	11.8	10.7	12.2	11.9	12.3	12.8	13.0	13.6	13.2
Super transient current time constant	T″d	10	10	10	10	10	10	10	10	10
Quadrature axis super transient reactance	X″d	13.4	12.6	13.0	12.8	13.1	14.4	14.7	14.5	14.5
Zero sequence reactance	X0	0.4	0.3	0.5	0.7	0.6	0.9	0.8	0.7	0.8
Negative sequence reactance	X2	12.4	12.4	13.2	14.6	13.5	14.2	13.6	13.2	14.4
Armature direct current component time constant	Ta	15	15	15	15	15	15	15	15	15