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Variable frequency high-efficiency permanent magnet motor for fans and pumps

Currently, loads with large fluctuations such as fans, water pumps, crushers, air compressors, pumping units, and ceramic grinding machines mostly use traditional high-energy-consuming Y or Y2 series asynchronous motor drives, resulting in low system efficiency and high operating costs. Permanent magnet motors can maintain high efficiency and power factor throughout the power range, and energy-saving modification of asynchronous motors with permanent magnets is an inevitable trend.

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Permanent magnet motors for fans and pumps

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400-6922168

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Variable frequency high-efficiency permanent magnet motor for fans and pumps

Application field:
At present, loads with large fluctuations such as fans, water pumps, crushers, air compressors, and ceramic polishing machines mostly use traditional high-energy-consuming Y or Y2 series asynchronous motor drives, resulting in low system efficiency and high operating costs. The efficiency and power factor of permanent magnet motors can be maintained at a high level in the full power range, and energy-saving transformation of asynchronous motors with permanent magnets is an inevitable trend.

Energy-saving technical transformation plan:
If the load runs at a constant speed and there is no room for speed reduction, the original asynchronous motor can be replaced with a self-starting permanent magnet motor, which has good synchronism and does not require additional inverters, which can reduce procurement costs. If the load has room for speed reduction, it can be transformed into a variable frequency permanent magnet motor to improve system efficiency. The permanent magnet motor can be a new motor or the original asynchronous motor can be transformed into a permanent magnet motor.

Advantages of permanent magnet motor:
● Permanent magnet motors have higher efficiency and power factor than asynchronous motors, meeting the IE4 (Level 1) energy efficiency standard, and can maintain a high level in the 20%~120% load range. The comprehensive energy-saving effect is obvious. The energy-saving principle is shown in the figure below. The comprehensive power saving rate of the motor body is about 5%~10%, and the comprehensive power saving rate of the system can reach 10%-30%.
● Motors can be guided for installation

Conventional high-efficiency permanent magnet motor selection table

Motor model	Power kW	Voltage V	Current A	Speed r/min	Starting torque multiple	Maximum torque multiple	Efficiency%	Power factor
YTBG225S-4-37	37	380	61	1500	1.8	2.2	95.8	0.98
YTBG 225M-4-45	45	380	76	1500	1.8	2.2	96.0	0.98
YTBG 250M-4-55	55	380	90	1500	1.8	2.2	96.2	0.98
YTBG 280S-4-75	75	380	123	1500	1.8	2.2	96.4	0.98
YTBG 280M-4-90	90	380	150	1500	1.8	2.2	96.6	0.98
YTBG 315S-4-110	110	380	183	1500	1.8	2.2	96.7	0.98
YTBG 315M-4-132	132	380	220	1500	1.8	2.2	96.8	0.98
YTBG 315L1-4-160	160	380	267	1500	1.8	2.2	96.9	0.98
YTBG 315L2-4-200	200	380	333	1500	1.8	2.2	97.0	0.98
YTBG 355M-4-250	250	380	417	1500	1.8	2.2	97.1	0.98
YTBG 225M-6-30	30	380	49	1000	1.8	2.2	95.6	0.98
YTBG 250M-6-37	37	380	61	1000	1.8	2.2	95.8	0.98
YTBG 280S-6-45	45	380	76	1000	1.8	2.2	96.0	0.98
YTBG 280M-6-55	55	380	90	1000	1.8	2.2	96.2	0.98
YTBG 315S-6-75	75	380	123	1000	1.8	2.2	96.4	0.98
YTBG 315M-6-90	90	380	150	1000	1.8	2.2	96.6	0.98
YTBG 315L1-6-110	110	380	183	1000	1.8	2.2	96.7	0.98
YTBG 315L2-6-132	132	380	220	1000	1.8	2.2	96.8	0.98
YTBG 355M1-6-160	160	380	267	1000	1.8	2.2	96.9	0.98
YTBG 355M2-6-200	200	380	333	1000	1.8	2.2	97.0	0.98
YTBG 355L-6-250	250	380	417	1000	1.8	2.2	97.1	0.98
YTBG225S-8-18.5	18.5	380	30	750	1.8	2.2	95.0	0.98
YTBG 225M-8-22	22	380	36	750	1.8	2.2	95.3	0.98
YTBG 250M-8-30	30	380	49	750	1.8	2.2	95.6	0.98
YTBG 280S-8-37	37	380	61	750	1.8	2.2	95.8	0.98
YTBG 280M-8-45	45	380	76	750	1.8	2.2	96.0	0.98
YTBG 315S-8-55	55	380	90	750	1.8	2.2	96.2	0.98
YTBG 315M-8-75	75	380	123	750	1.8	2.2	96.4	0.98
YTBG 315L1-8-90	90	380	150	750	1.8	2.2	96.6	0.98
YTBG 315L2-8-110	110	380	183	750	1.8	2.2	96.7	0.98
YTBG 355M1-8-132	132	380	220	750	1.8	2.2	96.8	0.98
YTBG 355M2-8-160	160	380	267	750	1.8	2.2	96.9	0.98
YTBG 355L-8-200	200	380	333	750	1.8	2.2	97.0	0.98