Three-phase no-load current of 2.5 0.75 KW motor, what reason be

Y2 series electric motor wholesale
Specifications
1. effiency: IE2 and IE1
2. 20 years manufacturing experience
3. 12 months guarantee
4. low noise and vibtration
There are two 0.75 KW... Grade 4... 380 v... The motor.. No-load current is between 2.3 to 2.6... Work environment textile... 'a lot... Rated current of the motor is only 2.2... Normal no-load current is www.dongfeng- motor.com around 1.6... Time machine completely under the condition of no load over current... Due to the current big. So high temperature sharply born... Will soon.. Overheating damage... Please say the reason... thank you Problem complement: I thank two answer first... Disease, spare parts and together, the two are not normal before.. In a few years later. You'll find the bad one current is increased. [. Repair of the motor are friends. Eliminate offline ribbon..] ... Until now, with or without load... Motor current is bigger... Last year when the motor current in 2.0 A... Now 2.4-2.5 A... Motor ac motor shaft sleeve inside and outside in good condition... Have not completed... Don't go... Just electric pilot time to run the old hot... Often the temperature in fan cover the 60-80 degrees... Wiring is right... Are the normal installation...