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High Voltage Motors

Cage-rotor high-voltage machines at 3.3 kV, 6 kV and 10 kV for mill, fan, compressor and hoist duty.

YKK / YXKK

6 kV and 10 kV, 185–3150 kW

6 kV / 10 kV185–3150 kWIC611 / IC616

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YE compact high-voltage three-phase induction motor

YE3 Compact HV

Compact 3.3 kV / 6 kV, 185–3150 kW

3.3 kV / 6 kV185–3150 kWIP55 / IP65

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Technical articles on these series

6 kV and 10 kV Motors: When High Voltage Makes Sense

How to compare a 6 kV or 10 kV motor with a low-voltage motor and transformer, without relying on a false universal power threshold.

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Fixed and Floating Bearings in Electric Motors

How fixed and floating bearing positions control the rotor axially while allowing thermal growth in an industrial electric motor installation.

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Gas Compressor Motors: Reciprocating versus Centrifugal

Two compressor families, two different motor answers. The centrifugal one fails on a specification most enquiries never mention: how long the start takes.

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Selecting a High-Voltage Motor for a Cement Kiln-Head Drive

A cement-plant checklist for high-voltage kiln-head drive motors, covering load torque, starting, supply limits, dust, heat, cooling and mechanical fit.

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High-Voltage Motor Differential Protection

Practical engineering guidance on high-voltage motor differential protection, including the checks, evidence and common mistakes that matter before purchase

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Do High-Voltage Motors Have IE Classes? Only Inside a Narrow Window

High-voltage cage motors do get IE classes — between 200 and 2000 kW, above 1 kV to 11 kV, on two, four or six poles. Outside that, no class exists.

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Starting Methods for High-Voltage Motors

Practical engineering guidance on starting methods for high-voltage motors, including the checks, evidence and common mistakes that matter before purchase or

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Coupling Selection for Industrial Motor Drives

A practical coupling review for industrial motor drives covering torque, speed, misalignment, shaft fit and driven-equipment constraints.

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Selecting Motors for Mining Crushers and Ball Mills

A motor-selection guide for mining crushers and ball mills, covering breakaway torque, inertia, starting, supply limits, dust and maintenance.

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Motor Failure Modes in Mining, Ranked by How Often They Come Up

Overheating and demagnetisation dominate mining motor failure talk. One of the two is specific to permanent-magnet machines and must be designed out early.

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Motor Foundation and Grouting Inspection Checklist

A commissioning checklist for motor foundations, baseplates and grout, focused on load transfer, level, support and final machine condition.

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Motor RTDs and Bearing Temperature Sensors

Practical engineering guidance on motor rtds and bearing temperature sensors, including the checks, evidence and common mistakes that matter before purchase

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Motor Shaft Alignment: What to Record Before Startup

A field-focused guide to motor shaft alignment records, including machine condition, measurement basis and final evidence before startup.

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Motor Shaft Key and Keyway Fit: Avoiding Fretting

What to verify in a motor shaft key and keyway connection before assembly, including fit, contact, retention and hub installation evidence.

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Motor Space Heaters and Condensation Control

Practical engineering guidance on motor space heaters and condensation control, including the checks, evidence and common mistakes that matter before purchas

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Motor Starting Voltage Drop: A Review That Includes the Load

How to screen motor starting voltage drop, then test the source, starter, motor torque and driven-load acceleration as one system.

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Motor Winding Resistance: When a Phase Difference Matters

A field method for comparing motor winding resistance without confusing temperature, test leads or terminal connections with a winding defect.

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Pipeline Booster Pump Motors: What the Station Decides

It looks like the easiest duty in the field — constant load, steady flow. Then you learn that capacity is changed by switching whole pumps in and out.

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Resonance, Unbalance or Misalignment? Follow the Evidence

A practical vibration investigation that uses direction, phase, location and speed response instead of diagnosing a motor from one spectrum peak.

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Selecting Motors for a Steel Rolling Mill Line

How to specify rolling-mill motors by stand duty, torque-speed envelope, overload, reversing, regeneration, cooling and mechanical shock.

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Sleeve vs Rolling Bearings in Large Motors

Practical engineering guidance on sleeve vs rolling bearings in large motors, including the checks, evidence and common mistakes that matter before purchase

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Axial Thrust in Vertical Motor Applications

A practical review of upward and downward thrust, coupling behaviour and bearing responsibility in vertical motor applications.

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Comparing across families, or filtering by power, voltage and protection?See the full range with filters. If the duty falls outside what these series publish, tell us the application — custom builds cover ratings the standard series do not.