large-凯发k8天生赢家

brief introduction

the large-sized 3-phase asynchronous motor series yr is produced in line with gb755-2000 basic technical requirements for motors and jb2223-77 basic technical requirements for large-sized 3-phase asynchronous motors. as an upgrade version of the old series of large-sized wound-rotor motor jr, the series’ key performance parameters are higher than those in ministerial standard because of the adoption of advanced modern production technologies and fine design. the series yr can be used as a primary mover for rolling mill, winch, water pump, compressor and ball mill as well as other mechanical equipments, suitable for places with small electricity capacity or needed for large starting torque to improve starting performances.

the frame of series yr is a horizontal-type structure made of welded steel plate. the motor boasts many advantages, e.g. high efficiency, strong overload capacity, low noise, slight vibration, reliable structure and good appearance, suitable for matching with imported equipment.

series yr adopts insulation class f. its rotor coils are copper bars covered with insulating material with an insulation class f, and silver brazing is adopted for the welding between coils and between coil and conducting bar so as to ensure the reliability for motor operation.

single shaft extension is commonly applied in series yr, but double shaft extensions also can be made. the direction of such motor rotation could be selected arbitrarily, but neither moving back and forth nor plug braking is allowed.

◆ tech data of 3-phase asyn. motor series yr

机座号 frame no.	额定电压 rated voltage (v)	额定功率 rated power (kw)	额定电流 rated current (a)	额定转速 rated speed (r/min)	效率 eff. (%)	功率因数 power factor (cosф)	最大转矩额定转矩 max. torque /rated torque	重量 weight (kg)
yr630-8/1180	6000	630	81.2	742	92	0.81	1.8	6250
yr630-10/1180		630	82	590	92	0.8	1.8	8100
yr800-8/1180		800	102	740	92	0.82	1.8	7000
yr800-10/1180		800	103	591	92	0.81	1.8	8250
yr1000-6/1180		1000	124	980	92.5	0.84	1.8	7180
yr1000-8/1180		1000	126	742	92	0.83	1.8	7540
yr1000-10/1430		1000	128	595	92	0.82	1.8	11820
yr1250-6/1180		1250	154	985	93	0.84	1.8	8910
yr1250-8/1430		1250	155	742	92.5	0.84	1.8	10000
yr1250-10/1430		1250	158	590	92	0.83	1.8	13700
yr1600-6/1430		1600	194	985	93.5	0.85	1.8	11350
yr1600-8/1430		1600	195	740	93	0.85	1.8	11860
yr1600-10/1730		1600	183	600	93.7	0.87	2.6	10600
yr2000-8/1730		2000	227	740	94.2	0.90	2.0	12600/14760
yr2000-10/1730		2000	233	600	94.4	0.88	2.0	12900
yr2500-8/1730		2500	279	740	94.6	0.91	2.4	14900/16900
yr2500-10/1730		2500	289	600	93.9	0.88	2.7	15700
yr630-8/1180	10000	630	45	741	94.7	0.85	1.8	7810
yr800-8/1180		800	56.2	741	94.9	0.87	1.8	8320
yr1000-8/1180		1000	69.8	741	95	0.87	1.8	8600
yr1250-8/1430		1250	85.5	741	95.5	0.88	1.8	11380
yr1400-8/1430		1400	95.5	741	95.6	0.89	1.8	11650
yr1600-8/1430		1600	108.7	743	95.7	0.89	1.8	12040

contour and mounting dimensions of yr series

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asynchronous motor

large-sized 3-phase asynchronous motor series yr (open-type)

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