南阳YA系列增安型三相异步电动机

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YA系列增安型三相异步电动机YA 系列增安型三相异步电动机（以下简称增安型电动机）是按 GB3836.1-2000《爆
炸性气体环境用电气设备 第 1 部分：通用要求》和 GB3836.3-2000《爆炸性气体环境用
电气设备 第 3 部分：增安型e” 》的规定设计制造的，其防爆标志分为 ExeⅡT1、Exe
ⅡT2、ExeⅡT3，分别适用于工厂中引燃温度为T1、T2、T3组的可燃性气体或蒸气与空气
形成的爆炸性温合物场所的设备上。
本系列电动机的功率等级与安装尺寸的对应关系对 ExeⅡT1、ExeⅡT2 组的与 Y 系列
相同，对 ExeⅡT3组考虑到增安型电动机有降低温升及tE时间不得小于5s的要求，2极电
动机从 H160，4 极从 H180 起，较 Y 系列电动机降低-功率等级，其余的功率等级与 Y 系
列保持-致。本系列电动机具有效率高、起动转矩大、噪声低、振动孝温升裕度大、性
能优良、使用安全可靠、寿命长等优点。
本系列电动机的功率范围为0.55～315Kw，机座中心高80～400mm。
YA系列增安型电动机主体外壳的防护等级不低于IP54，接线盒外壳防护等级不低于
P55，电动机的冷却方法为IC411，并可按要求制成户外型（W）、 户外防中等腐蚀型（WF1）。
General Description
Series YA Increased Safety Three Phase Induction Motors (hereafter designated as i ncreased
afety motors) are designed and manufactured in accordance with China National Standards:
GB 3836.1-2000 Electrical Apparatus for Explosive Gas Atmospheres
Part 1: General Requirements
GB 3836.3-2000 Electrical Apparatus for Explosive Gas Atmospheres
Part 3: Increased Safety "e"
The explosion protection marking manifests as Ex eⅡT1， Ex eⅡT2 and Ex eⅡT3. This series
motors are safely used separately on the equipment in the factories where are the locations
resent explosive mixtures formed by flammable gases or vapours of ignition temperature group
T1， T2 or T3 and air.
For ExeⅡT1 and ExeⅡT2 motors， the correlation of output ratings and mounting
rrangements of this series motors are the same with those of series Y motors. But for ExeⅡT3
motors， considering the specifications that the increased safety motors should reduce temperature
ise and tE time should not less than 5s， 2-pole motors H160 and above and 4-pole motors H180
nd above can reduce one output rating， compared with series Y motors. For the other motors，
he output ratings can keep the same with those of series Y motors. This series motors are
ngineered with many remarkable features， such as high efficiency， high starting torque， low
oise， small vibration， large margin of safety in temperature rise， excellent performance， safe and
eliable operation and long service life.
For this series motors， the power range is from 0.55Kw to 315Kw and the height of frame
entre from 80mm to 400mm.
The protection degree of series YA increased safety motors is not lower than IP54 for main
nclosures and IP 55 for terminal boxes. The cooling form is IC411. This series motors can be
manufactured into outdoor type (W type) and outdoor neutral chemical corrosion resistance type
WF1 type) according to customers requirement.