Introduction: 

YB2 series High Voltage Flame Proof Three-phase Asynchronous Motors are the new series products designed and manufactured by our company based on the advanced technologies at home and abroad with integration of our actual experience on producing the high voltage flame proof three-phase asynchronous motors. The motor is made of cast iron as the base, which is of compact structure, higher protection level, and easy to be installed and maintained. Additionally, the motors are granted all advantages, such as high efficiency and energy saving, reliable performance, low noise, small vibration, long service life and others through further optimized design and elaborate manufacturing process. The series motors are suitable for driving all kinds of fans, compressors, water pump, machine tools, transport machines and other general mechanical equipments, and are used for the industry of mine, steel works, mechanism, petroleum, chemical products, power station and others as the prime mover.
The explosion-proof performance of the series motors meets GB3836.1-2000 “Part 1: General Requirements of Electrical apparatus for explosive gas atmospheres” and the stipulations of GB3836.2-2000 “Part 2: Explosion-proof type’d’ of Electrical apparatus for explosive gas atmospheres”. The motors are made to be with the explosion-proof type according to all of these requirements and stipulations. The explosion-proof level of which is Exd I, Exd II BT4. Which are mainly used for the sites where are available the mixed explosive gas.

YB2 High Voltage Flame Proof Three Phase Asynchronous Motor Structure and Installation Method

The shell of the standard motor is of IP54 for the protection level, which can be IP54 or more on the request of users.
The installation method of standard motor is IMB3, but other installation methods are available too.
The motor can be cooled as per the description of IC411
This series of motor has advantages, such as excellent flame-proof property, high reliability, compact structure, safe, environment protection, low vibration, low noise, easy to install and maintain. And it can replace YB560~710 series (IC511 tube cooling structure) high voltage flame-proof three phase asynchronous motor.

YB2 High Voltage Flame Proof Three Phase Asynchronous Motor Working Conditions

Power range: 355-560
Capacity: 160kw-1800kw
Voltage: 3KV 6KV 10KV the allowable tolerance is ±5%.
Explosion proof mark: Exd I and Exd II BT4
Motor body: Cast iron
Speed: 3000rpm 1500rpm, 1000rpm, 750rpm, 600rpm
Protection Class: IP44 IP54
Cooling type: IC411
Ambient Temperature: -15°C~40°C
Altitude: not exceed 1000 Meter
Rated Frequency: 50Hz/60Hz
Insulation Class: F
Temprature rise: B
Ambient Temperature of Air: -15ºC~40ºC (it will be 5ºC~40ºC when the sliding bearings are used)
Working Type: S1 continuous working system
Transmission method: transmitted by couplings.
The special requirement for the application condition should be specified additionally when ordering.

Our Products Ex Mark Including The Following:

Flame proof motor: ExdⅠMb, ExdⅡAT4 Gb, ExdⅡBT4 Gb, ExdⅡCT4 Gb
Increased safety motor: ExeⅡT1 Gb, ExeⅡT2 Gb, ExeⅡT3 Gb
Positive pressure motor: ExpxⅡT1 Gb, ExpxⅡT2 Gb, ExpxⅡT3 Gb, ExpyⅡT1 Gb, ExpyⅡT2 Gb, ExpyⅡT3 Gb, ExpzⅡT1 Gc, ExpzⅡT2 Gc, ExpzⅡT3 Gc
Non sparking motor: ExnAⅡT1 Gc, ExnAⅡT2 Gc, ExnAⅡT3 Gc
Dust proof Motor: Ex tD A20, Ex tD A21, Ex tD A22, Ex tD B20, Ex tD B21, Ex tD B22.

Technical Data:

For the data sheet of YB2 6kV series of explosion-proof high-voltage three-phase induction motors

Type	Rated Power kW	Rated Current A	Speed r/min	Efficiency %	Power Factor Cosφ	Locked Torque Rated Torque	Locked Current Rated Current	Max. Torque Rated Torque	Moment of Inertia kg•m2	Load Moment of Inertia kg•m2	Weight Kg
Synchronous speed 3000 r/min
YB2-3551-2	185KW	23.0	2985	92.2	0.84	0.7	7.0	2.0	3	12	2085
YB2-3552-2	200KW	24.8	2985	92.4	0.84	0.7	7.0	2.0	3	13	2135
YB2-3553-2	220KW	27.2	2985	92.5	0.84	0.7	7.0	2.0	3	14	2180
YB2-3554-2	250KW	30.9	2985	92.6	0.84	0.7	7.0	2.0	4	16	2290
YB2-3555-2	280KW	33.7	2985	92.9	0.86	0.7	7.0	2.0	4	17	2320
YB2-4001-2	315KW	37.8	2985	93.2	0.86	0.7	7.0	2.0	5	19	3030
YB2-4002-2	355KW	42.5	2985	93.4	0.86	0.7	7.0	2.0	6	21	3125
YB2-4003-2	400KW	47.7	2985	93.9	0.86	0.7	7.0	2.0	6	23	3235
YB2-4004-2	450KW	53.5	2985	94.1	0.86	0.7	7.0	2.0	6	26	3250
YB2-4501-2	500KW	58.6	2985	94.4	0.87	0.7	7.0	2.0	8	28	3520
YB2-4502-2	560KW	65.5	2985	94.5	0.87	0.7	7.0	2.0	9	31	3590
YB2-4503-2	630KW	73.7	2985	94.6	0.87	0.7	7.0	2.0	10	34	3755
YB2-4504-2	710KW	82.9	2985	94.7	0.87	0.7	7.0	2.0	11	37	3830
YB2-5001-2	800KW	92.0	2985	95.1	0.88	0.7	7.0	2.0	15	41	5420
YB2-5002-2	900KW	103.4	2985	95.2	0.88	0.7	7.0	2.0	16	45	5565
YB2-5003-2	1000KW	114.7	2985	95.3	0.88	0.7	7.0	2.0	17	48	5725
YB2-5004-2	1120KW	128.4	2985	95.4	0.88	0.7	7.0	2.0	18	52	5895
YB2-5601-2	1250KW	141.4	2985	95.6	0.89	0.7	7.0	2.0	28	56	8100
YB2-5602-2	1400KW	158.2	2985	95.7	0.89	0.7	7.0	2.0	30	61	8180
YB2-5603-2	1600KW	180.6	2985	95.8	0.89	0.7	7.0	2.0	33	66	8250
Synchronous speed 1500 r/min
YB2-3551-4	185KW	22.9	1485	92.6	0.84	0.8	6.5	2.0	5	67	2420
YB2-3552-4	200KW	24.7	1485	92.9	0.84	0.8	6.5	2.0	5	72	2485
YB2-3553-4	220KW	27.1	1485	93.0	0.84	0.8	6.5	2.0	5	78	2545
YB2-3554-4	250KW	30.8	1485	93.1	0.84	0.8	6.5	2.0	6	87	2630
YB2-3555-4	280KW	34.4	1485	93.2	0.84	0.8	6.5	2.0	6	97	2685
YB2-4001-4	315KW	38.2	1485	93.4	0.85	0.8	6.5	2.0	9	108	3100
YB2-4002-4	355KW	42.9	1485	93.6	0.85	0.8	6.5	2.0	10	120	3195
YB2-4003-4	400KW	48.3	1485	93.7	0.85	0.8	6.5	2.0	11	133	3265
YB2-4004-4	450KW	54.2	1485	94.0	0.85	0.8	6.5	2.0	12	147	3350
YB2-4501-4	500KW	59.4	1485	94.2	0.86	0.8	6.5	2.0	15	161	3935
YB2-4502-4	560KW	66.4	1485	94.4	0.86	0.8	6.5	2.0	16	178	3980
YB2-4503-4	630KW	74.5	1485	94.6	0.86	0.8	6.5	2.0	18	197	4145
YB2-4504-4	710KW	83.8	1485	94.8	0.86	0.8	6.5	2.0	19	218	4310
YB2-5001-4	800KW	94.2	1485	95.0	0.86	0.8	6.5	2.0	36	241	5810
YB2-5002-4	900KW	105.9	1485	95.1	0.86	0.8	6.5	2.0	38	266	5980
YB2-5003-4	1000KW	117.5	1485	95.2	0.86	0.8	6.5	2.0	40	290	6125
YB2-5004-4	1120KW	131.5	1485	95.3	0.86	0.8	6.5	2.0	41	318	6220
YB2-5601-4	1250KW	144.8	1485	95.5	0.87	0.7	6.5	2.0	65	347	8280
YB2-5602-4	1400KW	162.1	1485	95.5	0.87	0.7	6.5	2.0	70	380	8580
YB2-5603-4	1600KW	185.1	1485	95.6	0.87	0.7	6.5	2.0	77	421	8920
Synchronous speed 1000 r/min
YB2-3553-6	160KW	20.9	988	92.2	0.80	0.8	6.0	2.0	7	157	2515
YB2-3554-6	185KW	24.1	988	92.4	0.80	0.8	6.0	2.0	8	180	2590
YB2-3555-6	200KW	26.0	988	92.6	0.80	0.8	6.0	2.0	9	193	2680
YB2-4001-6	220KW	27.8	988	92.8	0.82	0.8	6.0	2.0	13	210	3080
YB2-4002-6	250KW	31.5	988	93.0	0.82	0.8	6.0	2.0	14	236	3150
YB2-4003-6	280KW	35.3	988	93.2	0.82	0.8	6.0	2.0	15	262	3210
YB2-4004-6	315KW	39.5	988	93.5	0.82	0.8	6.0	2.0	16	291	3270
YB2-4501-6	355KW	43.9	988	93.7	0.83	0.8	6.0	2.0	29	325	3940
YB2-4502-6	400KW	49.5	988	93.7	0.83	0.8	6.0	2.0	31	361	4075
YB2-4503-6	450KW	55.5	988	94.0	0.83	0.8	6.0	2.0	33	401	4215
YB2-4504-6	500KW	61.5	988	94.3	0.83	0.8	6.0	2.0	36	441	4370
YB2-5001-6	560KW	68.7	988	94.5	0.83	0.8	6.0	2.0	47	487	5860
YB2-5002-6	630KW	77.2	988	94.6	0.83	0.8	6.0	2.0	50	540	6030
YB2-5003-6	710KW	86.9	988	94.7	0.83	0.8	6.0	2.0	54	600	6240
YB2-5004-6	800KW	97.7	988	94.9	0.83	0.8	6.0	2.0	59	666	6465
YB2-5601-6	900KW	108.4	988	95.1	0.84	0.7	6.0	2.0	100	737	8170
YB2-5602-6	1000KW	120.3	988	95.2	0.84	0.7	6.0	2.0	110	806	8460
YB2-5603-6	1120KW	134.6	988	95.3	0.84	0.7	6.0	2.0	115	888	8755
YB2-5604-6	1250KW	149.9	988	95.5	0.84	0.7	6.0	2.0	120	974	9060
Synchronous speed 750 r/min
YB2-4001-8	160KW	22.0	743	92.1	0.76	0.8	5.5	2.0	14	317	3130
YB2-4002-8	185KW	25.4	743	92.3	0.76	0.8	5.5	2.0	15	362	3200
YB2-4003-8	200KW	27.0	743	92.5	0.77	0.8	5.5	2.0	16	389	3260
YB2-4004-8	220KW	29.7	743	92.6	0.77	0.8	5.5	2.0	17	424	3320
YB2-4501-8	250KW	33.2	743	92.8	0.78	0.8	5.5	2.0	26	477	3745
YB2-4502-8	280KW	37.1	743	93.0	0.78	0.8	5.5	2.0	29	529	3905
YB2-4503-8	315KW	41.7	743	93.2	0.78	0.8	5.5	2.0	32	589	4060
YB2-4504-8	355KW	46.9	743	93.3	0.78	0.8	5.5	2.0	36	657	4270
YB2-5001-8	400KW	52.1	743	93.5	0.79	0.8	5.5	2.0	62	732	5685
YB2-5002-8	450KW	58.6	743	93.6	0.79	0.8	5.5	2.0	66	814	5815
YB2-5003-8	500KW	63.8	743	94.2	0.80	0.8	5.5	2.0	69	895	5990
YB2-5004-8	560KW	71.4	743	94.3	0.80	0.8	5.5	2.0	73	991	6130
YB2-5601-8	630KW	79.3	743	94.4	0.81	0.7	5.5	2.0	125	1100	7610
YB2-5602-8	710KW	89.3	743	94.4	0.81	0.7	5.5	2.0	131	1224	7915
YB2-5603-8	800KW	100.5	743	94.6	0.81	0.7	5.5	2.0	137	1360	8205
YB2-5604-8	900KW	112.9	743	94.7	0.81	0.7	5.5	2.0	145	1508	8495
Note: The motor efficiency is determined by the method of recommended value for stray loss. The mass of the motor is the theoretical value, which deviates from the actual value.

YB2 10kV Series of explosion-proof high-voltage three-phase induction motors

Type	Power (kW)	Current (A)	Speed 50HZ	Efficiency (%)	Powerfactor (cosΦ)	Tst/Tn	Ist/In	Tmax/Tn	Vibration (mm/s)	Noise dB(A)	Moment of Inertia (kg* ㎡ )	Weight (kg)
YB2  4501-2	220KW	16.3	2985	92.8	0.84	0.7	7	2	2.8	111	17	2730
YB2  4502-2	250KW	18.5	2985	93	0.84	0.7	7	2	2.8	111	18	2800
YB2  4503-2	280KW	20.2	2985	93.1	0.86	0.7	7	2	2.8	111	19.5	2930
YB2  4504-2	315KW	22.7	2985	93.3	0.86	0.7	7	2	2.8	111	21	3120
YB2  4505-2	355KW	25.5	2985	93.5	0.86	0.7	7	2	2.8	111	22	3200
YB2  4506-2	400KW	28.7	2985	93.8	0.86	0.7	7	2	2.8	111	24	3300
YB2  4507-2	450KW	32.2	2985	93.9	0.86	0.7	7	2	2.8	111	27	3500
YB2  4508-2	500KW	35.3	2985	94	0.87	0.7	7	2	2.8	111	30	3600
YB2  5001-2	560KW	39.5	2985	94.2	0.87	0.7	7	2	2.8	112	48	5050
YB2  5002-2	630KW	44.3	2985	94.4	0.87	0.7	7	2	2.8	112	54	5200
YB2  5003-2	710KW	49.8	2985	94.6	0.87	0.7	7	2	2.8	112	61	5360
YB2  5004-2	800KW	55.4	2985	94.8	0.88	0.7	7	2	2.8	112	65	5500
YB2  5005-2	900KW	62.2	2985	95	0.88	0.7	7	2	2.8	112	69	5640
YB2  5601-2	1000KW	69	2985	95.1	0.88	0.7	7	2	2.8	112	75	2700
YB2  5602-2	1120KW	76.2	2985	95.3	0.89	0.7	7	2	2.8	112	111	5800
YB2  5603-2	1250KW	84.9	2985	95.5	0.89	0.7	7	2	2.8	112	119	5860
YB2  5604-2	1400KW	94.9	2985	95.7	0.89	0.7	7	2	2.8	112	127	5930
YB2  4501-4	220KW	16.3	1488	92.7	0.84	0.8	6.5	2	2.8	108	21	2810
YB2  4502-4	250KW	18.5	1488	92.9	0.84	0.8	6.5	2	2.8	108	34	3000
YB2  4503-4	280KW	20.7	1488	93	0.84	0.8	6.5	2	2.8	108	38	3160
YB2  4504-4	315KW	22.9	1488	93.3	0.85	0.8	6.5	2	2.8	108	43	3350
YB2  4505-4	355KW	25.8	1488	93.4	0.85	0.8	6.5	2	2.8	108	52	3500
YB2  4506-4	400KW	29	1488	93.6	0.85	0.8	6.5	2	2.8	108	58	3700
YB2  4507-4	450KW	32.6	1488	93.8	0.85	0.8	6.5	2	2.8	108	65	3950
YB2  4508-4	500KW	35.7	1488	94	0.86	0.8	6.5	2	2.8	108	73	4200
YB2  5001-4	560KW	39.9	1488	94.1	0.86	0.8	6.5	2	2.8	111	122	5130
YB2  5002-4	630KW	44.9	1488	94.3	0.86	0.8	6.5	2	2.8	111	130	5350
YB2  5003-4	710KW	50.4	1488	94.5	0.86	0.8	6.5	2	2.8	111	141	5540
YB2  5004-4	800KW	56	1488	94.8	0.87	0.8	6.5	2	2.8	111	148	5700
YB2  5005-4	900KW	62.9	1488	95	0.87	0.8	6.5	2	2.8	111	156	5800
YB2  5601-4	1000KW	69.8	1488	95.1	0.87	0.8	6.5	2	2.8	111	230	5850
YB2  5602-4	1120KW	77.2	1488	95.2	0.88	0.8	6.5	2	2.8	111	252	5900
YB2  5603-4	1250KW	85.9	1488	95.4	0.88	0.8	6.5	2	2.8	113	272	5950
YB2  5604-4	1400KW	96.1	1488	95.6	0.88	0.8	6.5	2	2.8	113	305	6020
YB2  4504-6	220KW	16.7	987	92.5	0.82	0.8	6	2	2.8	105	56	3400
YB2  4505-6	250KW	18.9	987	92.7	0.82	0.8	6	2	2.8	105	64	3600
YB2  4506-6	280KW	21.2	987	92.9	0.82	0.8	6	2	2.8	105	73	3800
YB2  4507-6	315KW	23.8	987	93.1	0.82	0.8	6	2	2.8	105	81	4000
YB2  4508-6	355KW	26.8	987	93.3	0.82	0.8	6	2	2.8	105	90	4200
YB2  5001-6	400KW	30.1	987	93.5	0.82	0.8	6	2	2.8	105	170	5250
YB2  5002-6	450KW	33.4	987	93.7	0.83	0.8	6	2	2.8	105	177	5370
YB2  5003-6	500KW	37	987	93.9	0.83	0.8	6	2	2.8	105	184	5500
YB2  5004-6	560KW	41.4	987	94.1	0.83	0.8	6	2	2.8	108	191	5630
YB2  5005-6	630KW	46.5	987	94.3	0.83	0.8	6	2	2.8	108	202	5830
YB2  5601-6	710KW	52.3	987	94.5	0.83	0.8	6	2	2.8	108	370	5840
YB2  5602-6	800KW	58.8	987	94.7	0.83	0.8	6	2	2.8	108	388	5930
YB2  5603-6	900KW	65.2	987	94.9	0.84	0.7	6	2	2.8	108	402	6020
YB2  5604-6	1000KW	72.2	987	95.1	0.84	0.7	6	2	2.8	108	423	6100
YB2  5605-6	1120KW	80.8	987	95.3	0.84	0.7	6	2	2.8	108	450	6150
YB2  4506-8	220KW	18.3	742	92.4	0.75	0.8	5.5	2	2.8	102	73	3800
YB2  4507-8	250KW	20.8	742	92.6	0.75	0.8	5.5	2	2.8	102	82	4000
YB2  4508-8	280KW	22.6	742	92.8	0.77	0.8	5.5	2	2.8	102	91	4200
YB2  5002-8	315KW	25.4	742	93	0.77	0.8	5.5	2	2.8	102	170	5250
YB2  5003-8	355KW	28.6	742	93.2	0.77	0.8	5.5	2	2.8	102	177	5380
YB2  5004-8	400KW	31.3	742	93.4	0.79	0.8	5.5	2	2.8	102	184	5510
YB2  5005-8	450KW	35.2	742	93.5	0.79	0.8	5.5	2	2.8	102	191	5640
YB2  5601-8	500KW	38.9	742	93.7	0.79	0.8	5.5	2	2.8	105	450	6100
YB2  5602-8	560KW	43.6	742	93.9	0.79	0.8	5.5	2	2.8	105	480	6200
YB2  5603-8	630KW	48.3	742	94.1	0.8	0.7	5.5	2	2.8	105	510	6240
YB2  5604-8	710KW	54.3	742	94.3	0.8	0.7	5.5	2	2.8	105	535	6320
YB2  5605-8	800KW	61.1	742	94.5	0.8	0.7	5.5	2	2.8	105	560	6400

Installation Dimension:

YB2 High Voltage Flame Proof Three Phase Asynchronous Motor B3 Installation Method

 

Overall and mounting dimensions for YB2 3kV 6kV series of explosion-proof high-voltage three-phase induction motors

Shaft Height	Poles	A	B	C	D	E	F	G	H	K	AA	AB	AC	AD	AG	BA	BB	BC	BD	GD	HA	HB	HD	L
355	2 Poles	630	900	254	75	140	20	67.5	355	28	160	790	750	780	730	240	1110	217	112	12	50	210	1010	1770
355	4-6 Poles	630	900	254	100	210	28	90	355	28	160	790	750	780	730	240	1110	217	112	16	50	210	1010	1840
400	2 Poles	710	1000	280	85	170	22	76	400	35	160	870	840	830	745	240	1200	200	115	14	50	335	1110	1900
400	4-8 Poles	710	1000	280	110	210	28	100	400	35	160	870	840	830	745	240	1200	200	115	16	50	335	1110	2000
450	2 Poles	800	1120	280	95	170	25	86	450	35	160	950	910	855	790	240	1340	165	136	14	50	370	1170	2070
450	4 Poles	800	1120	280	120	210	32	109	450	35	160	950	910	855	790	240	1340	165	136	18	50	370	1170	2150
450	6-8 Poles	800	1120	280	130	250	32	119	450	35	160	950	910	855	790	240	1340	165	136	18	50	370	1170	2250
500	2 Poles	900	1250	425*	110	210	28	100	500	42	200	1080	1035	910	820	300	1490	264	114	16	50	490	1290	2580
500	4 Poles	900	1250	315	130	250	32	119	500	42	200	1080	1035	910	820	300	1490	264	114	18	50	490	1290	2380
500	6-8 Poles	900	1250	315	140	250	36	128	500	42	200	1080	1035	910	820	300	1490	264	114	20	50	490	1290	2485
560	2 Poles	1000	1400	530*	130	250	32	119	560	42	210	1170	1185	955	870	300	1680	178	170	18	60	595	1400	2900
560	4 Poles	1000	1400	355	150	250	36	138	560	42	210	1170	1185	955	870	300	1680	178	170	20	60	595	1400	2600
560	6-8 Poles	1000	1400	355	160	300	40	147	560	42	210	1170	1185	955	870	300	1680	178	170	22	60	595	1400	2775

Overall and mounting dimensions for YB2 10kv series of explosion-proof high-voltage three-phase induction motors

Shaft Height	Poles	A	B	C	D	E	F	G	H	K	AA	AB	AC	AD	AG	BA	BB	BC	BD	GD	HA	HB	HD	L
450	2	800	1120	280	95	170	25	86	450	35	160	950	910	855	805	240	1340	165	136	14	50	385	1170	2070
450	4	800	1120	280	120	210	32	109	450	35	160	950	910	855	805	240	1340	165	136	18	50	385	1170	2150
450	6-8	800	1120	280	130	250	32	119	450	35	160	950	910	855	805	240	1340	165	136	18	50	385	1170	2250
500	2	900	1250	315	100	210	28	90	500	42	200	1080	1035	910	835	300	1490	264	114	16	50	490	1290	2460
500	4	900	1250	315	130	250	32	119	500	42	200	1080	1035	910	835	300	1490	264	114	18	50	490	1290	2380
500	6-8	900	1250	315	140	250	36	128	500	42	200	1080	1035	910	835	300	1490	264	114	20	50	490	1290	2485
560	2	1000	1400	530*	130	250	32	119	560	42	210	1170	1185	955	890	300	1680	178	170	18	60	595	1400	2900
560	4	1000	1400	355	150	250	36	138	560	42	210	1170	1185	955	890	300	1680	178	170	20	60	595	1400	2600
560	6-8	1000	1400	355	160	300	40	147	560	42	210	1170	1185	955	890	300	1680	178	170	22	60	595	1400	2775

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