Detail
Leveraging Wolong Nanyang Explosion’s extensive experience in high-voltage box-type asynchronous and coal mill motors, YFBKK series incorporates the latest advancements in technology, materials, and manufacturing processes. Its compact design, high starting performance, low noise and vibration, and robust protection features ensure safe and reliable operation.
The YFBKK series high-voltage box-type three-phase asynchronous motor for coal mill is the prime mover for mechanical equipment that breaks coal blocks and grinds them into coal powder. The product is used extensively in a number of industrial sectors, including cement, silicate products, new building materials, refractory materials, fertilizers, black and non-ferrous metal beneficiation, glass and ceramics. It is also employed in the processing of various ores and other grind-able materials, as well as in the medical and textile industries. It is also suitable for use in a wide range of other industries, including metallurgy (for grinding magnesium powder, aluminium powder, carbon powder and so on), food processing (for grinding wheat, corn, cereals and so on), feed processing (for grinding blood meal and fish meal), fertilisers, tobacco, papermaking and the production of synthetic materials (such as plastics and dyes).
Description
YFBKK 500-6
Y-Three-phase asynchronous motor
FB - Dust explosion-proof type
KK - Air-to-air cooling
500-Frame size
6-Number of Poles
Ex tD  A21 IP65 T130℃
Ex-Explosion Protection Mark
tD-Enclosure protection type
A21-Equipment category Type A Zone 21
IP65-Protection Level
T130℃-Maximum surface temperature
Basic parameter
Frame Size: H450 ~ 630
Rated power range: 315kW ~ 2240kW
Rated voltage: 6000V ~ 10000V
Frequency: 50Hz, 60Hz
Number of poles: 6P ~ 8P
Thermal classification: 155(F)
Temperature rise limit: 80K (Class B)
Vibration speed: 2.3mm/s
Cooling method: IC611
Installation method: IMB3(can also be made into IMB35, IMV1)
Protection level: IP65/IP55
Operation mode: S1
Explosion-proof level: Ex tD A21 IP65 T130℃; Ex tD A22 IP65 T130℃ (with conductive dust);
Ex tD A22 IP55 T130℃ (no conductive dust)
Ambient air temperature: -20℃~+40℃
Operation mode: S1
Altitude: ≤1000mm
Indoor (standard configuration)
Implementation Standards
GB 755 rotary motor rating and performance
Ex tD  A21 IP65 T130℃
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 1971 rotating motor line end mark and rotation direction
GB/T 4772 rotary motor dimensions and output power class
GB/T 4942.1 Shell protection class (IP code) classification of the overall structure of the rotating motor
GB 10068 - Measurement and limits of mechanical vibration for motors with a 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
Explosive atmospheres - Part 1: general requirements for equipment
Electrical equipment for use in combustible dust environments - Part 1: General requirements
Electrical equipment for use in combustible dust environments - Part 5: Enclosure protected "TDS"
GB 30254 high voltage three-phase cage asynchronous motor energy efficiency limit value and energy efficiency class
GB 50058 Specification for design of electrical installations in explosive and fire hazard environments.
Basic Features
Frame Size: H450 ~ 630.
Rated power range: 315kW ~ 2240kW.
Rated voltage: 6000V ~ 10000V.
Frequency: 50Hz, 60Hz.
Number of poles: 6P ~ 8P.
Thermal classification: 155(F).
Temperature rise limit: 80K (Class B).
Vibration speed: 2.3mm/s.
Efficiency: 3-level energy efficiency, in line with GB30254 "High voltage three-phase cage asynchronous motor energy efficiency limits and energy efficiency levels"
Energy efficiency Level 3.
Cooling method: IC611.
Installation method: IMB3(can also be made into IMB35, IMV1).
Protection level: IP65/IP55.
Operation mode: S1.
Explosion-proof level: Ex tD A21 IP65 T130℃; Ex tD A22 IP65 T130℃ (with conductive dust); Ex tD A22 IP55 T130℃ (no conductive dust).
The temperature is -20℃ ~ +40℃, and the altitude is not higher than 1000m.
Indoor (standard) 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).
Installation Method