Product Highlights

High Efficiency & Energy Saving: Optimized electromagnetic design combined with low-loss silicon steel laminations cuts core losses and boosts power density. Customizable Voltage & Frequency: Multiple voltage options ranging from 3.3kV to 13.8kV, compatible with 50Hz and 60Hz for diverse operating scenarios. Rugged IP23 Protection: Standard IP23 enclosure protection grade; upgrade options available for IP44 and IPW24 climate-resistant design. High-Grade SKF Bearings: Fitted with genuine SKF bearings to deliver stable operation and extended service life. VPI Vacuum Pressure Impregnated Insulation: Stator windings adopt Class F insulation processed by VPI, offering outstanding moisture resistance and dielectric stability. Versatile Mounting Configurations: IMB3 horizontal base mounting as standard; IMB35, IMB5 and IMV1 mounting forms are optional. Proven Export Track Record: Supplied to more than 40 countries across Europe, America and Africa with reliable field performance. Authoritative Standard Compliance: Designed and tested in accordance with GB755, IEC34-1 and IEC34-5 for guaranteed safety and technical performance.

Product Attributes

Product Description

1. Product Overview

Our Y series high voltage three-phase induction motors were developed based on imported technology back in the 1980s and have accumulated more than 30 years of iteration history. Benefiting from continuous upgrades of insulation materials, adoption of low-loss silicon steel sheets, upgraded insulation grades and optimized electromagnetic design, the motor achieves reduced power loss and higher power output. Drawing on our 60 years of experience in high voltage induction motor design and manufacturing, we have completed the latest round of optimization to meet domestic and international industry requirements. Verified by type tests, this motor series reaches or approaches world-class standards in both technical and economic indicators. Mass production has been realized, and products are widely supplied across China and exported to over 40 countries and regions including Europe, America, Africa, Hong Kong and Macao, earning consistent positive feedback from end users.

Manufactured with premium raw materials and mature fabrication processes, this motor series features high efficiency, low vibration, stable running performance and easy installation and maintenance.

Power ratings, electrical characteristics, mounting dimensions and tolerances comply with GB755 Rotating Electrical Machines - Rating and Performance, IEC34-1 Rotating Electrical Machines - Rating and Performance and relevant machinery industry standards.

Five enclosure protection grades are available for this series: IP23, IP44, IP54, IP55 and IP56, complying with GB4942.1 and IEC34-5 for rotating machine enclosure protection. The standard IP23 version can be upgraded to IP44 pipe ventilation type or IPW24 climate protection type. Custom protection grades can be supplied upon request.

Three cooling modes are available in line with GB/T1993 and IEC34-6: IC01, IC611 and IC81W. Special cooling configurations are acceptable as per customer requirements.

The standard construction and mounting form is IMB3 (horizontal foot-mounted), conforming to GB997 and IEC 34-7 for motor structure and mounting code.

Based on rotor type, protection grade and cooling method, the whole series is divided into 8 sub-models as shown below:

All dimensioned 10kV motor technical data and installation drawings in this catalog can be adapted for 3kV, 10.5kV and 11kV variants.

2. Application

This series of high voltage induction motors serves as prime movers for compressors, fans, water pumps, unloaders, conveyors and other general machinery. It is widely deployed in mines, machinery plants, petrochemical facilities and power stations. For loads with large inertia such as blowers, coal mills, rolling mills, crushers and belt conveyors, customers shall provide complete technical parameters and sign a technical agreement with us for customized design to guarantee reliable operation.

Standard operating conditions:

1. Altitude ≤ 1000m
2. Maximum ambient temperature ≤ 40℃. Minimum ambient temperature: -15℃ for rolling bearing motors, 5℃ for sliding bearing motors; minimum ambient temperature of YKS and YRKS series is 5℃
3. For YKS and YRKS water-cooled motors: cooling water inlet temperature 5℃ ~ 33℃
4. In humid months: average monthly maximum relative humidity ≤90%, with average monthly minimum temperature ≤25℃
5. Power supply frequency: 50Hz ±1%
6. Operating voltage fluctuation: within ±5% of rated voltage
7. Duty: S1 continuous running

3. Structure Introduction

Y and YR are the base series with IP23 protection and IC01 cooling. Derivative types include YKS air-water cooled, YQF climate-protected, YKK air-air cooled, YRKS, YRQF and YRKK motors with varied protection and cooling schemes.

The motor adopts internationally popular box-type construction. Frame and end shields are fabricated by steel plate welding with high rigidity and lightweight design. After removing the protective cover or cooler, internal components are accessible for convenient inspection, installation and maintenance. The stator features outer pressing structure. Stator windings use Class F insulation and anti-corona materials, with terminals secured by specialized binding techniques. The whole stator undergoes VPI vacuum pressure impregnation with solventless Class F varnish, delivering reliable insulation, excellent moisture resistance and impulse withstand capability.

Squirrel cage rotors are mostly cast aluminum type with proven zero fracture risk for stable operation. Copper bar squirrel cage rotors adopt advanced slot welding and fixing technology. Wound rotors are also insulated with Class F materials and processed by VPI impregnation.

Two bearing types are optional: rolling bearing and sliding bearing, selected according to motor power and speed. Base bearing protection grade is IP44 and will be upgraded accordingly for higher motor enclosure grades.

Rolling bearing versions are equipped with on-line oil filling and draining ports, allowing grease replenishment and discharge without shutdown using dedicated tools.

The main terminal box is sealed to IP54 standard, normally mounted on the non-drive side (viewed from shaft extension end); left-side mounting is available on request. Cable entry direction can be adjusted to top, bottom, left or right. Independent grounding terminals are built inside the box.

4. Starting Requirements for Y, YKS, YQF, YKK Induction Motors

Rotor thermal and stress simulation is completed by computer calculation to avoid premature damage caused by overheating during startup. Customers shall comply with the following requirements:

1. The converted inertia of driven equipment shall not exceed the allowable load inertia J listed in the technical datasheet
2. Terminal voltage during startup shall not drop below 85% of rated voltage

The above specifications are applicable for typical quadratic torque loads such as pumps and fans. Under qualified power supply conditions, the motor permits two consecutive cold starts or one hot start, with natural coast-down between attempts. Additional restart attempts require a minimum waiting period of 1 hour.

If the load inertia exceeds listed values, frequent startup is required, or heavy-load startup is needed, please contact our engineering team for customized design support.

Detailed Photos

280kW Squirrel Cage Three Phase Asynchronous Electric Motor IC01 IP23 280kW Squirrel Cage Three Phase Asynchronous Electric Motor IC01 IP23 280kW Squirrel Cage Three Phase Asynchronous Electric Motor IC01 IP23

Product Parameters

Certifications

280kW Squirrel Cage Three Phase Asynchronous Electric Motor IC01 IP23 280kW Squirrel Cage Three Phase Asynchronous Electric Motor IC01 IP23 280kW Squirrel Cage Three Phase Asynchronous Electric Motor IC01 IP23 280kW Squirrel Cage Three Phase Asynchronous Electric Motor IC01 IP23 280kW Squirrel Cage Three Phase Asynchronous Electric Motor IC01 IP23 280kW Squirrel Cage Three Phase Asynchronous Electric Motor IC01 IP23

Packaging & Shipping

280kW Squirrel Cage Three Phase Asynchronous Electric Motor IC01 IP23 280kW Squirrel Cage Three Phase Asynchronous Electric Motor IC01 IP23 280kW Squirrel Cage Three Phase Asynchronous Electric Motor IC01 IP23 Standard seaworthy export packing Plywood case or fumigated wooden case Suitable for long-distance sea transportation

Quality Control

In-process Inspection

All measuring instruments and gauges are calibrated annually. Full inspection is implemented for every component as below:

Every motor undergoes full factory testing before shipment. A formal test report will be issued for each qualified unit.

Routine Test Items

Winding three-phase DC resistance, winding insulation resistance to earth, winding withstand voltage test, no-load current, no-load power, no-load loss, three-phase no-load current unbalance, locked rotor current, locked rotor torque, maximum torque, rotation direction, vibration (horizontal / vertical / axial), noise.

Type Test Items

Full load input power, full load current, stator winding loss, rotor winding loss, iron loss, mechanical loss, stray loss, full load slip, stator winding temperature rise, bearing temperature, hot insulation resistance, overload test, full load power factor, efficiency.

Warranty Period

Standard warranty: 12 months after commissioning or 18 months after delivery, whichever comes first. Extended warranty service is available upon request, please contact us for quotation.