WE3 series catalog
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WE3 Series of Premium - Efficiency Three - phase Asynchronous Motor WOLONG Pcnoer y,eur future

Introduction Cast iron specification Sincerity, Harmony and Creativity Who are we? And what can we offer? Established in 1984, Wolong Electric Group Co., Ltd was listed on the Shanghai Stock Exchange in June 2002. The Wolong Group currently has 55 Subsidiaries, more than 18.500 staff, assets of 3.2 billion and an annual revenue of 4.5 billion USD in 2016. The company is mainly focused on three product chains: Motor and Drives, Transformers and Power Supply. The history of the ATB Group (Antriebs Technik Bauknecht), with a shareholding of 100 % by Wolong, dates back more than 90 years. With...

Quality assurance The entire order realisation process for electrical machines, from quotation to delivery including the integration of our suppliers, is based on a generally accepted quality assurance system pursuant to ISO 9001, which is constantly monitored and undergoes further development. The designs, technical data and illustrations contained in this documentation are subject to change. They are only binding upon written confirmation. 11 IEC 60072 only provides for dimensions but does not define any output classifications. (tolerances acc. to EN 50347)

Technical explanations Three-phase alternating current, rated power Rated-load torque, speed Connection Three-phase alternating current The term three-phase alternating current is used if the existing three-phase system carries three individual alternating voltages that have identical values, but show a 120-degree phase shift. The three connections of the three-phase system are called L1, L2 and L3. Rated power The rated power is supplied at the motor's shaft end: PN = f3 x UN x IN x cos w x h [W] or PN = J~3 x UN x IN x cos w x h x 10-3 [kW] UN = rated voltage at the motor [V] The same...

For all types of construction with the shaft end in a downward position, the design "with drip roof” is recommended, in order to prevent the ingress of water at the second non-drive shaft end. For all types of construction with the shaft end in an upward position, a suitable cover, which prevents the dropping of small parts onto the fan cowl, is a prerequisite. This does not apply when the motor is attached to a driven machine, which then provides cover. However, the cooling air flow may not be affected by such a cover. Motors that are installed out of doors must be protected against...

Technical explanations Mounting arrangements Mounting arrangements The most common mounting arrangements are shown in the following table. The dimensional drawings show the range of frame sizes for which the individual types of construction are available. Further types of construction are available on request. The basic type of construction is specified on the rating plate according to code I, IEC 60034-7. Standard motors, i.e. frame sizes 80 – 355, which are ordered as the basic types of construction (universal types of construction) IM B3, IM B5 or IM B14, can also be operated in the...

Technical explanations Types of construction Mounting arrangements Motors without end shield and rolling-contact bearing at the drive end Code I (Code II) IM B14 (IM 3601) –– Shaft in a horizontal position Code I (Code II) IM B34 (IM 2101) –– Shaft in a horizontal position –– Feet on the floor IM V18 (IM 3611) –– Shaft in a vertical downward position IM V17 (IM 2111) –– Shaft in a vertical downward position –– Feet on the wall IM V3 (IM 3031) –– Shaft in a vertical upward position Flange-mounting motors, FT flange with tapped holes up to frame size 160; former designation acc. to DIN:...

Technical explanations Shaft ends, Key and Keyway Balancing, mechanical running smoothness Coupling drive Shaft ends The shaft ends are cylindrical and both their design, size and performance classification conform to IEC 50347. Motors from frame size 80 upwards are equipped with shaft ends that have internal threads conforming to DIN 332-2 for the fitting of belt pulleys and couplings. The design of the featherkeys conforms to DIN 6885-1; the keys are always included in the motor delivery packages. On customer request, motors are delivered with a second free shaft end. The key and keyway...

Mechanical construction Cooling method Cooling method The motors are fitted with fans made of plastic or metal that provide cooling regardless of the direction of rotation of the motor. The built-in fan moves the cooling air from the non-drive end to the drive end. For this reason, it is essential that the openings of the fan cowl ensure free air inflow. Correct cooling depends on observing a minimum space between the fan cowl and any existing wall. The cooling methods for electrical machines are stated in code according to IEC 60034-6. The code consists of the letters IC (International...

The motors are equipped with rolling-contact bearings on the drive end and the non-drive end. The bearings in motors up to and including frame size 180 are permanently lubricated. Motors of frame size 200 have a regreasable bearing. Other on request. These motors are fitted with an additional plate stating details about the specific lubricant, the quantity required and the greasing intervals. Bearing type (bearing selection can be changed according to customer needs) Frame size

Standard motors are lubricated for life. In the case of increased load and extreme temperatures, special greases are available. Permissible forces at the shaft end The specified values are valid for the bearings and drive end shaft ends contained in this list, taking a calculated life of L10h = 20000 h as the basis. They are permitted for both horizontal and vertical shafts. The table contains data concerning the permissible radial force FR at a distance x from the shaft shoulder. Permissible radial force Frame sizes 80-355 Frame

Electrical design Power Tolerances The rated power and operating values specified in the selection tables are applicable to the S1 service type as defined by IEC 60034-1 at a rated frequency of 50 Hz, rated voltage, a coolant temperature (KT) of max. 40 °C and a site altitude of up to 1000 m above sea level. The motors can also be used at coolant temperatures from 40 °C to max. 60 °C, or a site altitude of more than 1000 m above sea level. In these cases, the rated power specified in the selection tables must be reduced in accordance with the below chart and/ or a larger motor type or...