Features that make a difference:
All NEMA Premium ratings have a 1.25 service factor (up to 100 HP) resulting in cooler operation and extended life of the motor
All Cast Iron Construction, including Terminal Box and Fan Cover (*)
Solid feet for reduced vibration levels and impact absortion
Optimized ventilation system for cooler operation and extended life
High Grade FC200 cast iron provides superior mechanical strength and heat dissipation
All WEG W22 motors are Totally Enclosed Fan Cooled with a true IP55 rating against dust and moisture. (IPW56, IPW65 and
IPW66 available as optional)
Exclusive W-Seal 364T and larger provides superior bearing protection
Taconite Labyrinth seal 586 Frame and larger
Exclusive WEG painting system exceed 200hrs ASTM 117 corrosion test (Exceeds IEEE841 standard)
Balanced to 0.08 inches per second vibration limits (Meets IEEE841 standard)
Four Bolt Conduit Cover with glued Neoprene Gasket
Impregnation Resin and magnet wire are insulation class H
Stainless Steel Nameplate - Laser edged with high contrast background
Corrosion Proof Drains
Inverter Duty per NEMA MG1, Part 31
Certified Class I Div 2, Groups A, B, C & D; Class II, Div 2, Groups F & G
*cast iron fan cover available as an option on 143-215T frames
The most widely used of various motors is AC asynchronous motors (also known as induction motors). It is easy to use, reliable in operation, low in price, and firm in structure, but it has a low power factor and difficult speed regulation. Synchronous motors are commonly used in power machines with large capacity and low speed (see Synchronous Motors). The synchronous motor not only has a high power factor, but its speed has nothing to do with the size of the load, and only depends on the grid frequency. Work is more stable. DC motors are often used in occasions requiring wide-range speed regulation. However, it has a commutator, has a complex structure, is expensive, and is difficult to maintain, and is not suitable for harsh environments. After the 1970s, with the development of power electronic technology, the speed regulation technology of AC motors has gradually matured, and the price of equipment has been decreasing, and it has begun to be applied. The maximum output mechanical power that the motor can bear under the specified working mode (continuous, short-time operation system, intermittent cycle operation system) without causing the motor to overheat is called its rated power, and pay attention to the regulations on the nameplate when using it. . When the motor is running, pay attention to matching the characteristics of the load with the characteristics of the motor to avoid running or stalling. Electric motors can provide a wide range of power, from milliwatts to ten thousand kilowatts. The use and control of the motor is very convenient, with the ability to start, accelerate, brake, reverse, and hold. Generally, the output power of the motor will vary with the speed when the motor speed is adjusted.
market outlook
The replacement of JO2 motors with Y series AC asynchronous motors for high-efficiency motors is basically not limited by the model. Therefore, Y series motors can be used to replace JO2 series motors in all applications where AC asynchronous motors are used. The market potential of Yx series motors is restricted by their capacity. In principle, AC asynchronous motors below 90kW can be replaced by Yx series high-efficiency motors. The installed capacity of AC asynchronous motors below 90kW accounts for about 30% of the total amount of AC asynchronous motors.
In the past ten years, the Chinese government has been committed to promoting electric motor speed regulation technology, and all walks of life have adopted electric motor speed regulation to a certain extent. According to the results of sample surveys conducted by the petroleum, electric power, building materials, iron and steel, non-ferrous metals, coal, chemical, paper, textile and other departments, motor speed control applications in the petroleum, building materials, and chemical industries are better. Among the 400 million kW motor load, about 50% are load fluctuations, and 30% of them can solve the load fluctuation problem through motor speed regulation. Therefore, considering only the market capacity, there is a market for speed-regulating motors of approximately 60 million kW. The installed capacity of various types of electric motors in China has exceeded 400 million kW, of which asynchronous motors account for about 90%, small and medium-sized motors account for about 80%, and motors that drive fans, pumps and compressors are about 130 million kW. There are more than 152 series of small and medium-sized motors, 842 varieties, and more than 4000 specifications. In the past ten years, the machinery industry and other relevant departments have vigorously focused on the energy-saving work of electric motors, organized and led relevant research institutes and enterprises, successively designed and manufactured a variety of energy-saving motors, and issued orders to eliminate 63 types of high-energy-consuming motors and promote 24 This kind of energy-saving motor has achieved certain results. These energy-saving products are mainly divided into two categories: one is a high-efficiency motor that improves the efficiency of the motor, and the other is a speed-regulating motor.
The DC motor adopts an octagonal full lamination structure, which is suitable for automatic control technology that requires forward and reverse rotation.
Motor protection is a comprehensive protection for the motor, that is, when the motor is overloaded, lack of phase, locked rotor, short circuit, overvoltage, undervoltage, leakage, three-phase unbalance, overheating, bearing wear, stator and rotor eccentricity, axial movement diameter When the motor is bounced, it will give an alarm or protection; the device that provides protection for the motor is a motor protector, including thermal relays, electronic protectors and intelligent protectors. Large and important motors generally use intelligent protection devices.
New Cooling System
Fan Cover
Aerodynamic design
Noise level reduction
Better air flow distribution over frame
Increased mechanical strength
Frame
Reduced temperature on windings and bearings
Noise level reduction
Terminal box position outlet on top
Pad for vibration sensor
Displaced 900 from each other
Fan
Reinforced fan hub structure
Noise level reduction
Increased air flow
Fan with higher stiffnes
Enhanced Lifting Provisions
Easier handling - horizontal & vertical
Higher mechanical strength and handling safety
Solid feet
More impact resistance
Ideal for high vibration level applications
Terminal Box
Better connection quality
Easier cable handling during installation
More space available for accessory installation
Easier Maintenance
Mounting F1/F2/F3
Rotation on 90 stages
Bearing Caps
External
Finned surface for improved bearing heat dissipation
Internal
Change of grease path for positivelubrication
Bearing lubrication quality improvement
Reduced bearing temperature
Seal Subsystem
Increased dust and moisture protection
Increased protection to high-pressure cleaning
Endshields Subsystem
DE (Drive Endshield)
New fin design
Bearing moved outwards for better load support
Improved bearing heat dissipation for reduced bearing
temperature
Reinforced endshield structure
NDE (Non-Drive Endshield)
New design with smooth exterior surface
Improved air flow
Noise level reduction
Improved structural rigidity for low vibration
Severe Duty is standard with Tektrim.
SEVERE DUTY/ GENERAL PURPOSE – NEMA PREMIUM EFFICIENCY
FEATURES – ELECTRICAL
Features Standard Optional Special
Poles 2 up to 8
Voltage 208–230/460V (up to 215T–9 terminals and from 575V and others – 254 up is 12 terminals)
Insulation F (DT=80K) H
Service Factor 1.25 (up to 100HP)
1.15 (from 125HP and up)
Impregnation
Dip and bake (up to 326T) Continuous Resin Flow
Continuous Resin Flow (364T+
Features Standard Optional Special
Thermal Protection PTC, Thermostat, PT100 and KTY
NEMA Design B C
MECHANICAL
Features Standard Optional Special
Frame 143 – 588/9
Mounting F1 F2, F3, any
Flange – C and D
Drain Plug Manual Rubber Stainless Threaded
Eyebolt 182 – 588/9
Enclosure IP55 IPW56, IPW65, IPW66
V-ring 143T–326T Lip Seal or Oil(143 – 444/5)
InproSeal (143 – 588/9)
Sealing WSeal 364T–L449T Viton Oil Seal (143 – 588/9) Labyrinth Tachonite Seal (143 – 588/9) Taconite Labyrinth 586/7–588/9
W3 Seal (143 – 588/9)
Fan Plastic (143 – 504/5) Aluminum, Bronze and Cast Iron
– Aluminum (5008, 586/7 and 588/9) Bronze and Cast Iron
Fan Cover Steel Cover (143 – 215)
Cast Iron Cover (143 – 215)
Cast Iron Cover (254 – 588/9)
Bearing Ball Bearing (ZZ up to 215) Roller Bearing (254 – 588/9) **
Ball Bearing (143/5– 588/9)
Bearing Cap 254 – 588/9 143 – 215 (Std with flange)
Grease Polyrex Aeroshell, Krytox, WT/Ens
Regreasable Bearings 254 – 588/9 143 – 215
Shaft Material SAE 1040/45 (143 – 364/5) 4140, AISI 304/316/420
– 4140 (404/5 – 588/9) AISI 304/316/420
Shaft End T (TS – 2 Poles 284 – 588/9) TS – 4 and up (284 – 588/9)
Key Type A (143 – 326), B (364/5 – 588/9) B (143 – 326), C (143 – 588/9)
Balancing Precision with Half Key (143 – 326) Others – Precision with Half Key (364/5 – 588/9)
Center Hole Threaded (364/5 – 588/9) Threaded (143 – 326)
Terminal Box 143 – 215 (Style W22)
– – 254 – 588/9 (Type diagonal)
Terminal Box Thread NPT RWG, Metric and PG
Terminal Box Plug Plastic Smooth Cable glands Plastic Threaded
Leads outlet protection Self–extinguishing Foam Epoxy
Frame grounding Single Grounding (143 – 326) Double Grounding (143 – 326) – Double Grounding (364//5 – 588/9)
Terminal Block – BMC (6 terminals) and 12 terminals
Features Standard Optional Special
Painting plan / Color
207A / RAL 5009 (up to 215)
Others
203A / RAL 5009 (254 and up)
Packing Cardboard Box (143 and 215T)
Pallet
Crate (254T – 588/9) –
** Only to 4 Poles and up ( 2 poles used ball Bearing and Shaft material SAE 1040/45)
Others Optional Features: Nameplate Details:
Additional Terminal Box Encoder
Space Heater Double Shaft End
Internal Tropicalized Painting
Permatex Sealed Endshields
Slinger – Shaft up
Drip Cover (Canopy) – Shaft down
YZR, YZ series crane and metallurgical motors have the characteristics of large overload capacity and high mechanical strength, and are especially suitable for driving various types of crane and metallurgical machinery or other similar equipment.
YZR series hoisting and metallurgical motors are wound rotor motors, and YZ series hoisting and metallurgical motors are cage motors.
The motor can operate normally under the following conditions.
(1) The ambient temperature does not exceed 40℃ (for general environment) or 60℃ (for metallurgical environment);
(2) The altitude does not exceed 1000m;
(3) Frequent mechanical vibration and shock;
(4) Frequent starting, braking (electrical or mechanical) and reverse rotation.
The fixed frequency of the motor is 50Hz, and the rated voltage is 380V.
Connection method: Y-connection is used for stator windings with a power of 132KW and below, and the rest are "△" connection. For Y-connection motors, a zero-point lead wire can be added.
A motor is a device that converts electrical energy into mechanical energy. It uses energized coils (that is, stator windings) to generate a rotating magnetic field and act on the rotor (such as a squirrel-cage closed aluminum frame) to form a magneto-electric power rotating torque. Motors are divided into DC motors and AC motors according to different power sources. Most of the motors in the power system are AC motors, which can be synchronous motors or asynchronous motors (motor stator magnetic field speed and rotor rotation speed do not maintain synchronous speed). The motor is mainly composed of a stator and a rotor. The direction of the force movement of the energized wire in the magnetic field is related to the direction of the current and the direction of the magnetic line of induction (the direction of the magnetic field). The working principle of the motor is the action of the magnetic field on the force of the current to make the motor rotate.
Comprehensive replacement of DC motor speed regulation, comprehensive replacement of frequency converter + frequency conversion motor speed regulation, comprehensive replacement of asynchronous motor + reducer speed regulation;
It can run at low speed and high power, eliminating the need for a reducer to directly drive a large load;
Has all the advantages of traditional DC motors, while eliminating carbon brushes and slip ring structures;
Excellent torque characteristics, good middle and low speed torque performance, large starting torque and small starting current;
Stepless speed regulation, wide speed regulation range, strong overload capacity;
Small size, light weight, large output;
Soft start and stop, good braking characteristics, can save the original mechanical braking or electromagnetic braking device;
High efficiency, the motor itself has no excitation loss and carbon brush loss, eliminating multi-stage deceleration consumption, and the comprehensive power saving rate can reach 20% to 60%. Only the power saving item can recover the purchase cost in one year
