China Wolong Nanyang ATB brand YR、YRKS、YRKK Series three-phase High Voltage with Wound Rotor Induction motor (Frame size: 355—630 6kV) Company, Companies

The Schorch brand YR, YRKS, YRKK series of high voltage rotor three-phase AC motors (frame size: 355-630), Wolong Nanyang Explosion Protection company’s latest products developed and produced by the department have advanced levels.This series of motors is made of sophisticated materials, excellent manufacture, high performance index, low noise, low vibration and reliability. Is easy to use, install and maintain.

Product Description

The Schorch brand YR series represents the foundational line of motors. The YRKK and YRKS series are derived products, tailored according to the cooling methods and protection levels of the motors. This range of motors complies with the relevant standards set by the International Electrotechnical Commission (IEC), and they are all alternating current (AC) three-phase induction motors that meet IEC motor specifications.
Application
This series of YR, YRKS, YRKK motors is ideally suited for powering a range of general machinery, including mills, rolling mills, winches, crushers, compressors, and more. They find extensive application in diverse industrial and mining sectors, such as mining operations, steel production, petroleum processing, chemical plants, cement manufacturing, and power generation facilities.
Model Description
YRKK-5603-4
  • Three Phase Asynchronous Motor
  • Wound rotor
  • K K - Air to air cooling
  • 560 - Specification code, indicating that the shaft center height is 560mm
  • 3 - Core length code (# 3 core)
  • 4 - Poles
Implementation Standards
  • GB 755 rotary motor rating and performance
  • Classification of structure type, installation type and junction box position of GB/T 997 rotary motor (IM code)
  • GB/T 1032 three-phase asynchronous motor test method
  • GB/T 1993 Rotating motor cooling method
  • GB/T 4942.1 Protection class (IP code) classification of the overall structure of the rotating motor
  • GB 1971 Rotary motor line end mark and direction of rotation
  • GB/T 4772.2 Dimensions and output power levels of rotating motors - Part 2: Stand sizes 355 to 1000 and convex border numbers 1180 ~ 2360
  • GB 10068 - Measurement, assessment and limits of mechanical vibration for motors with a shaft center height of 56mm and above
  • GB/T 10069.1 Rotating motor noise determination methods and limits - Part 1: Rotating motor noise determination methods
  • GB 10069.3 Rotating motor noise determination methods and limits - Part 3: Noise limits
  • GB 14711 General safety requirements for small and medium-sized rotating motors
Basic Features
Frame number:355 ~ 630
Rated voltage:6kV
Rated frequency:50Hz
Rated power range:See Table 4 and Table 5
Poles:4 ~ 12P
Heat Classification:155(F)
Temperature rise limit:80K(Class B), 105K(Class F)
Cooling methods:See Table 2
Installation Mode:IMB3
Working system:S1
Ambient air temperature:-15℃ ~ +40℃
Altitude:≤1000m
Protection level: See Table 2. Standard configuration: The collector ring of the motor is located on the outside of the bearing, protection level value is IP23. Optional configuration: If the user requires another type of protection class, or the collector ring is located on the inside of the bearing, special request must be made at the time of ordering.
Environmental configuration: Indoor (Standard configuration).
Optional: outdoor (W), outdoor medium corrosion (WF1), outdoor strong corrosion (WF2), indoor medium Corrosion (F1), indoor corrosion protection (F2), hot and humid zone (TH), dry tropical zone (TA), outdoor hot and humid zone (THW), Outdoor Dry Tropics (TAW).
Mounting
Mounting Dimensions
Parameter
Parameter Specifications Table
Noise level
Noise Level Table
Frequently Asked Questions (FAQ)
What are the primary applications for the YR, YRKS, and YRKK series motors?
These motors are ideally designed to power general machinery, including mills, rolling mills, winches, crushers, and compressors, with applications across mining, steel, petroleum, chemical, cement, and power generation industries.
What standard requirements do these alternating current (AC) motors meet?
The entire series complies with the standards set by the International Electrotechnical Commission (IEC), as well as key rotating motor standards such as GB 755 for rating and performance and GB/T 1032 for test methods.
How is the motor model designation structured (e.g., YRKK-5603-4)?
Using YRKK-5603-4 as an example: YRKK indicates a wound rotor motor with air-to-air cooling, "560" indicates a shaft center height of 560mm, "3" represents the core length code, and "4" specifies the number of poles.
What is the standard protection level for the collector ring?
Under the standard configuration, the collector ring is positioned on the outside of the bearing and has a protection rating of IP23. Alternate protection ratings or inside-bearing configurations can be requested upon ordering.
Are there environmental options available for outdoor or corrosive environments?
Yes. While the standard setup is for indoor use, optional features include configurations for outdoor (W), medium or strong corrosion environments (WF1, WF2, F1, F2), and hot/humid or dry tropical zones (TH, TA, THW, TAW).

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