Product Description

1. PRODUCT INTRODUCTION OF YB3 ELECTRIC MOTOR

Type: Three Phase Explosion-Proof Electric Motor

YBX3 series of flameproof three-phase

induction motors type of H63~355 are latest products developed by our company combining

with home and abroad electromagnetic structure, technique and material etc

based on YB2 and YB3 series of motors. This series of motors have many merits

such as high-efficiency, energy conservation, big margin of temperature rise,

long service life, excellent performance, low noise, advanced explosion-proof

structure, high reliability and convenient operation and maintenance etc. The

efficiency index of this series motors confirms to the energy efficiency grades

2 of specified in GB18613-2012 Minimum allowable values of energy efficiency

and the energy efficiency grades for small and medium three-phase asynchronous

motors. Power class and the installation dimensions accord with IEC standard ,

also completely in the same way as YB2 and YB3 series three-phase induction

motors. This series of motors meet GB755-2008 “Rotating electrical

machines-Rating and performance”. Their flameproof performance should meet

GB3836.1-2010 “Explosive atmospheres, Part1:Apparatus General requirements” and

GB3836.2-2010“Explosive atmospheres, Part2: Apparatus protected by the crust

for flameproof “d” ”. The flameproof types of this series of motors are ExdI,

ExdIIAT4 and ExdIIBT4. This series of motors are suitable for the non-mining

working area in underground mine or the dangerous locations in factories where

there are the explosive gas of class IIA and IIB and temperature of class T1～T4.Shell protection degree of this

series of motors is IP55, the cooling system is IC411.This series of motors

have the following types: humid tropics type (YBX3-TH), dry tropics type(YBX3-TA),

outdoor type (YBX3-W), outdoor medium-anticorrosion type (YBX3-WF1) and outdoor

humid type (YBX3-THW),outdoor dry tropics type (YBX3-TAW), indoor tropics type

(YBX3-T)、outdoor

tropics type (YBX3-TW).

2. TECHNICAL FEATURES OF YBX3 ELECTRIC MOTOR

Exd-symbol Exd I Mb, ExdⅡAT4 Gb, ExdⅡBT4 Gb

Category I: surface highest temperature no higher than 150℃ (when coal dust may cover the motor surface), no higher than 450℃ (when coal dust will not cover the surface or some protection work has been done to prevent the coal dust accumulation)

Category Ⅱ: surface highest temperature no higher than T1(450℃), T2(300℃), T3(200℃), T4(150℃); Terminal box with three or six terminals for rubber jacket cable (plastic cable) and steel cable.

Ambient temperature:－15℃~35℃ in coal mine and －15℃~40℃ in plant.

High efficiency IE3

Rating voltage: 380V,660V,380/660V 50Hz (for Exd-symbol Exd I and frame size 80-355)

660V/1140V 50Hz (for Exd-symbol Exd I and frame size 112-355)

380V, 660V, 380/660V 50Hz & 400V, 415V, 440V, 460V, 480V, 690V 60Hz (for Exd-symbol ExdⅡ)

Ideal for the coal mine where methane and coal dust may be present (Exd I) and dangerous explosion areas（Ex dⅡAT4、dⅡBT4）in the plant with the class ⅡA ⅡB and temperature T1-T4 flammable gas.

Parameters Table