Overview

This document provides detailed technical specifications and mounting dimensions for the Y and Y2/TE series three-phase induction motors, covering power ratings from 0.18 kW to 37 kW and frame sizes from 63 to 355. It serves as a comprehensive reference for engineers and technicians involved in motor selection, installation, and maintenance.

1. Motor Series and Variants

• Series: Y and Y2/TE three-phase induction motors.
• Power Range: 0.18 kW to 37 kW.
• Frame Sizes: H80 to H355, including smaller frames starting at 63.
• Mounting Arrangements: Multiple types such as B3, B5, B35, and variants V1, V3, V5, V6, B6, B7, B8, V15, V36, following standard frame norms.
• Bearings: Standard bearing numbers (e.g., 6204 to 6322) specified for driving and non-driving ends depending on frame size.

2. Electrical Specifications

Electrical data tables provide parameters at standard voltages (380V for Y series, 400V for Y2/TE series) and 50 Hz frequency, covering synchronous speeds of 3000, 1500, 1000, and 750 r/min. Key parameters include:

• Rated output power from 0.18 kW to 37 kW.
• Speeds close to synchronous values depending on pole count.
• Full load current specified per motor rating and speed.
• Power factor ranging typically from 0.7 to 0.9.
• Efficiency values from approximately 70% up to over 95%, increasing with motor size.
• Locked rotor current and torque for starting characteristics.
• Rated and maximum torque for performance evaluation.
• Noise levels at full load, generally increasing with motor size.

3. Mechanical and Mounting Dimensions

Comprehensive dimension tables cover frame sizes 63 to 355, including:

• Mounting dimensions such as shaft diameter, length, flange sizes, bolt hole patterns, and tolerances.
• Mounting types including IM B3, IM B5, IM B35, IM V1, and others with corresponding dimensional data.
• Details on removable feet and mounting accessories.
• Tolerances ranging from ±1.5 mm to ±4.0 mm, with some precision dimensions having asymmetric tolerances (e.g., +0.009/-0.004 mm).

4. Poles and Hole Configurations

• Available pole counts: 2, 4, 6, 8, and occasionally 10 poles.
• Mounting hole counts vary with frame size and pole number, commonly 4, 6, 8, or 10 holes.
• Hole diameters and spacing detailed with tolerances to ensure hardware compatibility.

5. Standards and Compliance

The motors conform to industrial standards such as NEMA and IEC, ensuring compatibility, interchangeability, and quality. Frame sizes and mounting arrangements follow standardized norms facilitating integration into various applications.

6. Applications and Recommendations

Suitable for driving pumps, generators, compressors, and general industrial machinery requiring reliable three-phase induction motors. Recommendations include:

• Select motor size and frame based on application load and installation constraints.
• Verify electrical parameters (voltage, current, power factor) match supply and load conditions.
• Consider efficiency and noise levels for energy savings and environmental compliance.
• Use specified bearing types for maintenance and replacement.
• Adhere to dimensional tolerances for proper installation and mechanical integration.
• Account for mounting type and special features like "No Flying Ring" when applicable.

Critical Information Summary

• Ensure correct frame size and mounting arrangement for application compatibility.
• Strictly follow specified mounting dimensions and tolerances.
• Verify pole count and mounting hole configuration for equipment compatibility.
• Consider motor efficiency and noise levels in selection.
• Use recommended bearing types for maintenance.

This document supports effective selection, installation, and maintenance of Y and Y2/TE series three-phase induction motors by providing precise technical data and dimensional standards.