China Wolong Nanyang YBK3 series coal mine underground low voltage flameproof high efficiency three-phase asynchronous motor Factory, Companies

YBK3 series flameproof three-phase asynchronou Ex Induction motors for underground coal mine is axial ventilation fully enclosed self-fan cooling squirrel cage flameproof three-phase asynchronous motor.

Product Description

YBK3 series explosion-proof three-phase asynchronous motor for underground coal mine is axially ventilated, fully enclosed, fan-cooled, squirrel-cage explosion-proof three-phase asynchronous motor, which is the basic series of explosion-proof motors designed to replace the YBK2 series in China, with the advantages of high efficiency, high torque, strong overload capacity, low noise, low vibration, large temperature rise margin, good performance, easy installation and maintenance, and long service life. It has the advantages of reasonable explosion-proof structure, safe and reliable use, and beautiful appearance. The technical level of the product has reached the domestic advanced level.

Application

YBK3 series ex proof electric motor has the advantages of high efficiency, large torque, strong overload capacity, low noise, small vibration, large temperature rise margin, good performance, convenient installation and maintenance, long life, reasonable flameproof structure, safe and reliable use, beautiful appearance, etc. The explosion-proof grade of the motor is Class I, Division 2, Group A, B, C and D.

YBk series explosion-proof motors for underground coal mines are explosion-proof motors specially designed for underground coal mines. The explosion-proof mark is "Ex d I Mb". It is suitable for underground coal mining working faces with explosion hazards of methane mixtures and coal dust.

Implementation standards

The explosion-proof performance of YBK3 series explosion-proof three-phase asynchronous motors conforms to the national standards GB3836.1-2010 Explosive Environment Part 1: General Requirements for Equipment and GB3836.2-2010 Explosive Environment Part 2: General Requirements for Equipment.

GB3836.2-2010 "Explosive Environment Part 2: Equipment Protected by Flame-proof Shell "d"" and industry standard MT/T451-2011 "General Technical Specification for Safety Performance of Flame-proof Low-voltage Three-phase Asynchronous Motors for Coal Mines" and JB/T9593.1-2015 "YBK3 Series Flame-proof Three-phase Asynchronous Motors for Underground Coal Mines". YBK3 Series Flame-proof Three-phase Asynchronous Motors for Underground Use in Coal Mines (Block No. 80-355)", it is made into flame-proof type, and the explosion-proof mark is "Exd IMb". It is suitable for use in underground coal mines where there is a danger of methane mixture and coal dust explosion.

Basic Features

Frame: H100-H355
Rated Power: 2.2~315kW
Poles: 2P, 4P, 6P, 8P, 10P
Rated Voltage: 380V, 660V, 1140V (or custom)
Rated Frequency: 50Hz / 60Hz
Service Duty: S1 (Customizable S2, S3)
Insulation: Class H, Grade F
Protection: IP55, IP56, IP65, IP66

Connection Method: "Y" connection for 3kW and below (380V); "Δ" connection for over 3kW (380V).

Cooling Mode: IC411

Explosion-proof Marking: ExdIMb

Mounting

YBK3 Mounting Specifications

Parameter

YBK3 Parameter 1 YBK3 Parameter 2 YBK3 Parameter 3 YBK3 Parameter 4

Frequently Asked Questions (FAQ)

What application environments is the YBK3 series motor designed for?
The YBK3 series explosion-proof three-phase asynchronous motor is specially designed for underground coal mines, specifically for working faces with explosion hazards of methane mixtures and coal dust.
What are the main performance advantages of the YBK3 series compared to older models?
As the upgrade for the YBK2 series, the YBK3 offers higher efficiency, higher torque, stronger overload capacity, lower noise, reduced vibration, a larger temperature rise margin, and an optimized, safer flameproof structure.
What are the standard rated voltages and frequencies for these motors?
The default rated voltages are 380V, 660V, and 1140V (with custom frequencies and voltages available on request). The rated frequency standard options are 50Hz and 60Hz.
Which national and industry standards does the YBK3 series comply with?
The motor complies with the national explosion-proof standards GB3836.1-2010 and GB3836.2-2010, the industry standard MT/T451-2011, and the specific manufacturing standard JB/T9593.1-2015.
What insulation and protection grades do the YBK3 motors feature?
They feature Class H and Grade F insulation. The default protection grade is IP55, but IP56, IP65, and IP66 configuration levels are also available.
How are YBK3 series motors connected for startup?
For motors rated at 3kW and below under 380V, the "Y" connection method is used. For motors above 3kW under 380V, a "Δ" connection configuration is applied.

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