Yrkk900-6-5600kw Wound Rotor Slip Ring Induction Motor for Cutting Machine in Sugar Mill, IC611, IP55, 995rpm

Y, YKS, YQF, YKK and YR, YRKS, YRQF, YRKK (6kV, 10kV) series large sized high voltage three-phase induction motors (H710~1120) are designed and developed by our company in accordance with the national and professional standard. 
This series products adopt the high-quality materials, good manufacturing process, have the characteristics of high efficiency, energy saving, small vibration, reliable operating and convenient for mounting and maintenance.
The power grade, electric property, mounting dimensions and tolerance are coincident with national standard GB755 Rotating Electric Motor Rating and Property, International Electrical Committee standard IEC34-1 Rotating Electric Motor Rating and Property and national standards GB/T13957-2008 The Basic Technical Terms of Large Sized Three-phase Induction Motor etc.
The enclosure protections of this series of motor include 5 types, i.e. IP23, IP44, IP54, IP55 and IP56 in accordance with the standards of IEC34-5 Enclosure Protection Class of Rotating Electrical Machine. The IP23 motor may be changed to IP44 (pipeline ventilation) or IPW24 (climate protection type). If the users need other protection degree, we may also provide relevant products.
There are 3 cooling methods of this series of motor, i.e., IC01, IC611 and IC81W in accordance with the standards of IEC34-6 Cooling Methods of Rotating Electrical Machine. If the users need other cooling methods, we may also provide relevant products.
The structure and Installation method of this series of motor is IMB3 (horizontal with footing), and complies with the the specifications in IEC 34-7 Motor Structure and Mounting Type Code.
This series of motor may be classified into 8 series in accordance with the rotor type, protection degree and cooling method:

1. Application Ranges

1. Sea level is not over 1000m;
2. The highest ambient temperature is not over 40ºC; the lowest ambient temperature is 5ºC;
3. For the YKS and YRKS series of motors, the highest temperature of cooled water in the cooling inlet is not exceed 33ºC, and the lowest temperature is 5ºC;
4. In moist month, the monthly overage highest relative humidity is 90%, at the same time, the monthly overage lowest temperature is not over 25ºC;
5. The frequency of power supply is 50Hz±l%;
6. The variation of work voltage is ±5%;
7. Motor rating is continuous operation system SI.

1. The moment of inertial of the rotating part of the driven mechanical equipment should not over these values of (loading J) item shown in the technical table;
2. Customers should guarantee the voltage of electric network across the motor's terminals not lower than 85% of the rated value during starting;
3. The resistance moment feature of driven machines is the resistance moment feature of water pump and fan.

Under the above-mentioned conditions, motor may be permitted to be started at actual cold condition for twice continuously, or at hot condition for once, the interval of two times starting is natural stoppage. The restarting of the motor over the above times should be one hour later.
If the moment of inertia of the mechanical rotating part of the driven machinery is over the value shown in (loading J) item of technical data, or there is a requirement to start motor frequently, or it is possible to start the motor under heavy loading, it is necessary to contact with our company for negotiating about specific design so as to ensure the reliable start-up of motor.

Standard seaworthy package for export
Plywood package or wooden fumigation package
Suitable for long distance transportation by sea
 

Located in Changsha, central China's Hunan province, Changli Electric Co., Ltd., a subsidiary of Changli Group, which was formally known as Changsha Motor Factory founded in 1946, is a leading electric motor manufacturer among Top 10 industrial electric motor manufacturers in China. With over 70 years' production experience and research and development capabilities, we can produce a wide range of motors. After years' development, we have several branches, offices and marketing centers around the country.
With an investment of 1094 million yuan, the company covers an area of 400mu (about 270, 000m2), has over 600 sets of precision production equipment, with annual production capacity of 8,000 MW.
At present, we have over 350 employees, in which engineers and technicians accounting for 18%. With a strong technical research and development team and over 70 years' manufacturing experience, we can produce various kinds of low voltage motors, medium voltage motors and high voltage motors.
Our testing center is Hunan Medium and Small Sized Motors Quality Supervision Station, an authorized test station of China National Quality Inspection Center, is responsible for the quality supervision and sampling inspection of motor products of various motor manufacturers in Central and Southern China. We can test 40 series of high and low voltage motors.
Our products include standard motors, synchronous/asynchronous motors, high efficiency motors, premium efficiency motors, explosion proof motors, special motors, variable frequency speed regulation motors, ultra-high speed motors, submersible motors, wound rotor slip ring motors, permanent magnet motors, large-sized vertical circulating pump motors, etc.

Wide power range available
Excellent starting performance
Available to all industry segments and applications in global supply
Highest reliability to minimize operation cost from downtime
High flexibility with customizable design
Support  to witness FAT on site/online 

In-process Inspection/ Quality Control
All the measuring apparatus and instruments are calibrated each year.
Quality control for each item