Alternating Current AC Induction Motors

Title:

YE4 315M-4 132kW Low Voltage Three Phase AC Motor

Brief Introduction

Engineered for high-power reliability, the alternating current AC induction motors YE4 315M-4 incorporates advanced design measures to proactively mitigate shaft current risks–a critical consideration in VFD-driven or large motors. Adhering to core electromagnetic principles, its construction carefully manages stator core lamination segmentation. The quantity of core joints is precisely controlled relative to the 4-pole design to minimize the potential for induced shaft voltages, aligning with established practices where specific joint-to-pole-pair ratios prevent problematic current paths.

While inherent shaft voltages may exist, the YE4 315M-4 alternating current AC induction motors is designed to maintain levels below established thresholds where bearing damage typically initiates. For applications elevating this risk, standardized provision for shaft grounding (bypass/earthing) paths is implemented, effectively diverting any significant currents before they reach critical levels known to cause rapid bearing electro-erosion. This focus on bearing system integrity complements its IE4-class energy efficiency.

Compared to brushless DC motors (BLDC) which utilize permanent magnet rotors inherently eliminating the slip-induced voltages common in induction machines, the YE4 315M-4 alternating current AC induction motors counters potential shaft current challenges through meticulous electromagnetic design and protective provisions. Its robust squirrel-cage construction, combined with these specific countermeasures against shaft currents and compatibility with standard starting/VFD methods, ensures exceptional operational longevity and reliability for demanding industrial drives such as high-power pumps and compressors, even under variable frequency operation.

Main Technical Parameters

Why choose Simo Brand YE4 series of Motor?

The YE4 Series LV Motor has a high-strength cast iron frame, so it is very strong and has a longer service life. Anti-corrosion copper wire coils are not only more powerful but also have thermal protection, so they are safer to operate. The copper wires are evenly arranged, so they are not easy to deform even if the motor runs for a long time. The bearings have high torque and good responsiveness, stable output, and lower noise. In addition, the smaller size and energy-saving characteristics make it more popular.

Production Details

Frame

• Compact and robust iron casting frame

• Universal IEC and NEMA installation dimensions 

• Customizable

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Stator

• 99.9% pure copper winding for stator to ensure the output power and efficiency

• Excellent insulation system with 5 more processing flows

• All the windings are fitted in by handwork to ensure all slots are full and avoid any winding flaw.

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Rotor

• Aluminum casting rotor with silicon steel rotor core to assure induction efficiency

• Precisely machined shafts with good capacity of strength and toughness

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Testing

• All motors must pass the piece testing before painting and packaging

• Type tests will be regularly performed for each series, more often for new developed series and variants.

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Package and delivery

• All motors will be packaged well before delivery

• Plastic cover inside, vacuum tin foil outer and then solid wood box

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Applications

The YE3 Series LV Motor is commonly used to drive water pumps, compressors, conveyors and other transmission machinery in different areas.

Chemistry

Power Station

Cement

Pump

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