Detailed Product Description
A wide range of voltages can be up to max 690V,for 50 HZ and 60 HZ available.
To ensure long lifetime, the windings are made of the latest available materials in class F protection and temperature rise limited to class B(80k) in standard motors.Strong corrosion protection.
The motors are made to withstand aggressive environ as standard and they are designed for long lifetime. For motors with regreasing possibility ments. They have strong and effective protection against corrosion.
Bearing with high load capacity.
All motors are provided with deep-groove ball bearings,the lifetime is extended.Cast iron motors in sizes 71-250 are greased for life, and those in sizes 280-355 have a regreasing device as a standard.
Low noise level.
The Y3 range has been designed with to minimize motors noise levels, by means of improving magnetic and electrical design, ventilator condition, and structure assembling size and technology.
Additional windings protection.
PTC thermistors, them-switches and Anticondensation heaters on request.
Mechanical Design.
Totally enclosed fan cooled IP55 Heavyduty design, manufacutured from ectra corrsion resistant cast iron material s to be used in all kind of environment. The motor is mechanically very strong and robust and as standard designed for additional energy saving through frequency converter drives.Drain holes and plugs as standard in sizes 280 to 355.Flexible cable entry direction.
Terminal boxes are mounted on the top of the motors, right or left.Terminal boxes of motor size 71-132 can rotate 4*90 degree, and those of 160-355 can rotate 2*180. All are easy ro refit.Powerful refit available .
The motors satisfy the requirements of a wide range of environments and applications, such as improving protection ,insulation level, regreasing facilities, dust-proof, sealing rings, rainproof are available.
Insulation and Insulation Class.
According to IEC 60085, insulation material are divide into insulation classed.Each class has a designation corresponding to the temperature that is upper limit of the range of application of the insulation material under normal operating condition.
The winding insulation of a motor is determined on the basis of the temperature rise in the motor and the ambient temperature. The insulation is normally dimension for the hottest point in the motor at its normal rated output and at ambient temperature. The insulation is normally dimension for the hottest point in the motor at its normal rated output and at ambient temperature of 40. Motors subject to ambient temperature of 40 will generally have to be derated .In most cases , the standard rated outputs of motors from Y2 motors are based on the temperature rise for insulation class B. Where the temperature rise is according to class F, this is specified in the data tables.
However,all the motors are designed with class F insulation, which permits a higher temperature rise than class B. The motors ,therefore, have a generous over-load margin. If temperature , rise to class F is allowed , the outputs given in the tables can generally be increased by about 12%.
Temperature limits are according to standards. The extra thermal margin when using class F insulation with class B temperature rise makes the motors more reliable.
