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The Y2 series 2 hp three phase motor is an updated product of the Y series motor and is a general-purpose fully enclosed self-fan-cooled squirrel-cage three-phase asynchronous motor. It is the latest product in my country in the 1990s, and its overall level has reached the level of similar foreign products in the early 1990s. The product is used in various fields of the national economy, such as machine tools, water pumps, fans, compressors, and can also be used in transportation, mixing, printing, agricultural machinery, food and other occasions that do not contain flammable, explosive or corrosive gases.
Product Detail
Motor Type: 2hp three phase motor
Output Power: 0.18 kW - 315 kW
Frame Size: IEC 63 - 355
Number of Poles: 2, 4, 6, 8
Rated Voltage: 380V (can be adjusted according to customers)
Frequency: 50 or 60 Hz
Protection Level: IP54 or IP55
Energy Efficiency Index: IE1 / IE2 / IE3
Insulation Class: B or F
Cooling Method: ICO141
Wiring Connection: Y connection below 3kW, △ connection above 4kW
Working Mode: Continuous (S1)
Product Parameter (specification)
Motor 2 hp three phase
Type | Power HP | Full Load | Rated Torque Tn(N*m) | Ist/In | Tst/Tn | Tmax/Tn | |||
Current (A) | Speed(r/min) | Eff(%) | Power Factor | ||||||
3000rpm.2 poles | |||||||||
YE2-90S-2 | 2 | 3.3 | 2840 | 81.3 | 0.84 | 5.04 | 6 | 2.2 | 2.4 |
1500rpm.4 poles. | |||||||||
YE2-90L-4 | 2 | 3.4 | 1400 | 82.8 | 0.8 | 10.23 | 6 | 2.2 | 2.4 |
1000rpm.6 poles | |||||||||
YE2-100L-6 | 2 | 3.8 | 920 | 79.8 | 0.75 | 15.57 | 5.5 | 2 | 2.1 |
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About motor heating failure
Technician's troubleshooting method for motor heating failure
When the temperature of the motor exceeds the maximum operating temperature or the temperature rise exceeds the specification, or although the temperature rise does not exceed the specification, but the temperature rise suddenly increases at low load, it indicates that the motor is faulty. The judgment and troubleshooting methods are:
(1) The temperature rise does not exceed the temperature rise limit under the rated load, and the temperature of the motor exceeds the maximum allowable operating temperature only because the ambient temperature exceeds 40°C. This phenomenon shows that the motor itself is normal. The solution is to use manual methods to reduce the ambient temperature. If this is not possible, the load must be reduced.
(2) The temperature rise under the rated load exceeds the nameplate regulations. No matter what the situation is, the motor is faulty and must be shut down for inspection, especially when the temperature rise suddenly increases. The external reasons are: the grid voltage is too low or the line voltage drop is too large (more than 10%), the load is too heavy (more than 10%), and the motor and machinery are not properly coordinated; internal reasons are: single-phase operation, short circuit between turns, short circuit between phases , The stator is grounded, the fan is damaged or not fastened, the air duct is blocked, the bearing is damaged, the stator and rotor are rubbed, the motor and the cable joint are heated (especially the copper-aluminum or aluminum-aluminum connection), the motor is corroded or damp, etc.
(3) Theoretically, the motor can be forward and reverse, but some motors have a directional fan (mostly 2P motors). If it is reversed, the temperature rise will exceed a lot.