WEG motors W22 series Rated Speed 750~3000rpm 2hp 4hp 6hp 8hp Ac motor Three Phase Electric Motor

WEG motors W22 series Rated Speed 750~3000rpm 2hp 4hp 6hp 8hp Ac motor Three Phase Electric Motor

FOB Reference Price: Get Latest Price

≥1 Pieces

US $3900

Free Inquiry

Customized Request

Product Details

{{item.text}}

Quick Details

Brand Name:: WEG

Model Number:: W22 Inverter Duty

Frequency:: 50/60HZ

Frame material:: FC-200 (EN GJL 200) cast iron

Cooling method:: TEFC IC411

Starting method:: VFD

Protection class:: IP55

Mounting:: B3T,B3R,B3L

Insulation class:: F

Temperature rise:: B=80k

Certification:: EAC, GEMS,WEEE Directive, CCC, CE, RoHS, ABS

Thermal protection:: Thermistor PTC, 1 per phase, for tripping at 155 °C

Quick Details

AC Voltage:: 380-415/660-690//440-460

Warranty:: 18months

Place of Origin:: Jiangsu, China

Brand Name:: WEG

Model Number:: W22 Inverter Duty

Frequency:: 50/60HZ

Frame material:: FC-200 (EN GJL 200) cast iron

Cooling method:: TEFC IC411

Starting method:: VFD

Protection class:: IP55

Mounting:: B3T,B3R,B3L

Insulation class:: F

Temperature rise:: B=80k

Certification:: EAC, GEMS,WEEE Directive, CCC, CE, RoHS, ABS

Thermal protection:: Thermistor PTC, 1 per phase, for tripping at 155 °C

Product Introduction

W22 Line – High Efficiency Motors

The robust new W22 comes with unparalleled ease in handling and installation. Lower maintenance and reduction of losses by 10 % – 40 % deliver efficiency improvements equal or better than the EU EFF1 and IEC 6034.30/Class IE2 standards.

Electric motors play a major role in this strategy, for around 40% of all global energy demand is estimated to be related to electric motor applications. Consequently, any initiatives to increase energy efficiency, by using high efficiency electric motors and frequency inverters, are to be welcomed, as they can make a real contribution to reducing global energy demand and carbon emmissions.

Product Details

Torque restrictions on variable frequency drive applications

When driving constant torque loads, self-ventilated variable frequency driven motors have their torque limited at sub-rated frequency due to ventilation reduction. The following derating must be applied (refer to below curve and IEC 60034-17).

Derating curve for constant torque

(*) When the top green curve is applied the motor temperature rise will be limited by the temperature class of it's insulation material. For example, for class F motors, the temperature rise will be limited at 105 K. This curve can only be used for class F insulation and class B temperature rise motors in order to ensure that, when driven by frequency drive, the temperature rise remains within class F limits (below 105 K rise).
(**) When the lower blue curve is applied the motor temperature rise in a variable frequency drive will be the same as when driven by sinusoidal supply. In other words, class F insulation motors with class B temperature rise will remain with class B temperature rise(≤ 80 K) even when driven by variable frequency drives, which increase motor losses due to harmonics.

Product Parameters

Protection based on operating temperature

These are temperature detectors (usually made of platinum, nickel or copper) with operating principle based on variation of their electrical resistance with temperature. These calibrated resistances vary linearly with temperature, allowing continuous monitoring of motor heating process through an RTD relay with high precision rate and response sensitivity.

The same detector can be used for alarm (with operation above the regular operating temperature) and trip (usually set to the maximum temperature of the insulation class).