YA 系列增安型三相異步電動機
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YA 系列增安型三相異步電動機
YA 系列增安型三相異步電動機
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YA 系列增安型三相異步電動機
Series YA Increase-Safety Three-Phase
Induction Motors
南陽防爆集團有限公司
Nanyang Explosion Protection Group Co., Ltd.
11 概述
YA 系列增安型三相異步電動機(以下簡稱增安型電動機)是按 GB3836.1-2000《爆
炸性氣體環(huán)境用電氣設備 第 1 部分:通用要求》和 GB3836.3-2000《爆炸性氣體環(huán)境用
電氣設備 第 3 部分:增安型“e”》的規(guī)定設計制造的,其防爆標志分為ExeⅡT1、Exe
ⅡT2、ExeⅡT3,分別適用于工廠中引燃溫度為T1、T2、T3組的可燃性氣體或蒸氣與空氣
形成的爆炸性溫合物場所的設備上。
本系列電動機的功率等級與安裝尺寸的對應關系對 ExeⅡT1、ExeⅡT2 組的與 Y 系列
相同,對 ExeⅡT3組考慮到增安型電動機有降低溫升及t 時間不得小于5s的要求,2極電
E
動機從 H160,4 極從 H180 起,較 Y 系列電動機降低一功率等級,其余的功率等級與 Y 系
列保持一致。本系列電動機具有效率高、起動轉矩大、噪聲低、振動小、溫升裕度大、性
能優(yōu)良、使用安全可靠、壽命長等優(yōu)點。
本系列電動機的功率范圍為0.55~315Kw,機座中心高80~400mm。
YA系列增安型電動機主體外殼的防護等級不低于IP54,接線盒外殼防護等級不低于
IP55,電動機的冷卻方法為IC411,并可按要求制成戶外型(W)、戶外防中等腐蝕型(WF1)。
1 General Description
Series YA Increased Safety Three Phase Induction Motors (hereafter designated as increased
safety 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
present 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
arrangements 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
rise and t time should not less than 5s, 2-pole motors H160 and above and 4-pole motors H180
E
and above can reduce one output rating, compared with series Y motors. For the other motors,
the output ratings can keep the same with those of series Y motors. This series motors are
engineered with many remarkable features, such as high efficiency, high starting torque, low
noise, small vibration, large margin of safety in temperature rise, excellent performance, safe and
reliable operation and long service life.
For this series motors, the power range is from 0.55Kw to 315Kw and the height of frame
centre from 80mm to 400mm.
The protection degree of series YA increased safety motors is not lower than IP54 for main
enclosures 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
(WF type) according to customer's requirement.
1
22 電動機的型號意義
2 Type Designation
Explanation of type designation of YA355L1–2WF1 is as follows:
Y A 355 L1 – 2 WF1
異步電動機 戶外防中等腐蝕
Induction motors Outdoor neutral chemical
增安型 corrosion resistance
Increased safe ty 極數(shù)(2極)
機座中心高( 355mm) No. of poles (2P)
Height of shaft center (355mm) 長機座,1號鐵心長
Long frame, No. 1 core length
3 結構說明
3.1 定子
定子繞組采用厚漆層導線,有繞組定子鐵心經(jīng)真空壓力浸漆處理,保證導線之間的空
隙填充良好,使之成為一個完整的整體,繞組和絕緣具有良好的電氣、機械、熱穩(wěn)定和防
潮性能。
電動機的絕緣等級為F級,根據(jù)GB3836.3-2000增安型電動機繞組的溫升限值對單層
繞組應不超過80K,對雙層繞組不超過70K,其中機座號400不超過90K,從而提高了電動機
運行時的安全可靠性。如果用戶需要還可以增加定子繞組溫度監(jiān)控裝置。
3.2 轉子
轉子采用熱套工藝將鑄鋁轉子固定在軸上,轉子經(jīng)動平衡校驗,電動機運行平穩(wěn),振
動小、噪聲低。
3.3 接線盒
本系列電動機接線盒具有良好的防爆和防護性能,進線方式為橡套電纜和防爆撓性管
兩種結構,接線盒位于機座的頂部,可以前、后、左、右四個方向進線。
3.4 風扇、風罩
全系列電動機風扇經(jīng)靜平衡校驗與軸采用鍵聯(lián)接,運行平穩(wěn)。風罩為鋼板結構,在防
止一定大小的固體異物進入殼內的前提下,具有最大的通風面積和最好的通風散熱效果,
防護等級為IP20。
3.5 軸承和軸承室
電動機軸承采用電機專用低振動、低噪聲軸承,H132及以下采用雙面密封軸承,在軸
伸端裝有波形彈簧墊片,以適度的彈力壓靠軸承,有效地抑制電動機運轉時產生的振動和
噪聲,H160及以上電動機采用內、外蓋結構,并在軸承部位采用擋圈軸向固定,有效地防止
電動機轉子的軸向竄動,H160及以上電動機軸承結構設置有注排油裝置,可不停機加注軸
承潤滑脂。根據(jù)用戶要求還可增設軸承溫度監(jiān)控裝置,當軸承運行異常過熱時可自動報警
或停機。
3.6 在出廠時機座號 250~355 電動機的軸伸端安裝有軸承鎖緊裝置,在運輸過程中可有
效保護電動機軸承不致受損。
3.7 電機的保護
本系列電動機在正常運行情況下可避免火花、電弧和危險溫度的產生,對于非正常運
行情況下,則需借助于外加保護裝置,用戶可根據(jù)t 時間和起動電流比IA/IN正確地選用
E
外加保護裝置,使電動機安全運行。
33 Construction Features
3.1 Stators
The windings are wound with thick enamel wire. The complete stator winding cores are
vacuum-press-impregnated to a solid integrity to ensure the gaps between wires to be filled well.
The VPI process enables the stator windings to possess excellent electrical and mechanical
properties, high thermal stability and moisture-resistant ability.
The insulation is Class F. In accordance with GB3836.3-2000, the temperature-rise limit
values in windings of increased safety motors should not exceed 80k for single layer windings
and 70k for double layer windings, and moreover, 90k maximum for motors frame size H400.
Series YA Increase-Safety Three-Phase
Induction Motors
南陽防爆集團有限公司
Nanyang Explosion Protection Group Co., Ltd.
11 概述
YA 系列增安型三相異步電動機(以下簡稱增安型電動機)是按 GB3836.1-2000《爆
炸性氣體環(huán)境用電氣設備 第 1 部分:通用要求》和 GB3836.3-2000《爆炸性氣體環(huán)境用
電氣設備 第 3 部分:增安型“e”》的規(guī)定設計制造的,其防爆標志分為ExeⅡT1、Exe
ⅡT2、ExeⅡT3,分別適用于工廠中引燃溫度為T1、T2、T3組的可燃性氣體或蒸氣與空氣
形成的爆炸性溫合物場所的設備上。
本系列電動機的功率等級與安裝尺寸的對應關系對 ExeⅡT1、ExeⅡT2 組的與 Y 系列
相同,對 ExeⅡT3組考慮到增安型電動機有降低溫升及t 時間不得小于5s的要求,2極電
E
動機從 H160,4 極從 H180 起,較 Y 系列電動機降低一功率等級,其余的功率等級與 Y 系
列保持一致。本系列電動機具有效率高、起動轉矩大、噪聲低、振動小、溫升裕度大、性
能優(yōu)良、使用安全可靠、壽命長等優(yōu)點。
本系列電動機的功率范圍為0.55~315Kw,機座中心高80~400mm。
YA系列增安型電動機主體外殼的防護等級不低于IP54,接線盒外殼防護等級不低于
IP55,電動機的冷卻方法為IC411,并可按要求制成戶外型(W)、戶外防中等腐蝕型(WF1)。
1 General Description
Series YA Increased Safety Three Phase Induction Motors (hereafter designated as increased
safety 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
present 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
arrangements 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
rise and t time should not less than 5s, 2-pole motors H160 and above and 4-pole motors H180
E
and above can reduce one output rating, compared with series Y motors. For the other motors,
the output ratings can keep the same with those of series Y motors. This series motors are
engineered with many remarkable features, such as high efficiency, high starting torque, low
noise, small vibration, large margin of safety in temperature rise, excellent performance, safe and
reliable operation and long service life.
For this series motors, the power range is from 0.55Kw to 315Kw and the height of frame
centre from 80mm to 400mm.
The protection degree of series YA increased safety motors is not lower than IP54 for main
enclosures 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
(WF type) according to customer's requirement.
1
22 電動機的型號意義
2 Type Designation
Explanation of type designation of YA355L1–2WF1 is as follows:
Y A 355 L1 – 2 WF1
異步電動機 戶外防中等腐蝕
Induction motors Outdoor neutral chemical
增安型 corrosion resistance
Increased safe ty 極數(shù)(2極)
機座中心高( 355mm) No. of poles (2P)
Height of shaft center (355mm) 長機座,1號鐵心長
Long frame, No. 1 core length
3 結構說明
3.1 定子
定子繞組采用厚漆層導線,有繞組定子鐵心經(jīng)真空壓力浸漆處理,保證導線之間的空
隙填充良好,使之成為一個完整的整體,繞組和絕緣具有良好的電氣、機械、熱穩(wěn)定和防
潮性能。
電動機的絕緣等級為F級,根據(jù)GB3836.3-2000增安型電動機繞組的溫升限值對單層
繞組應不超過80K,對雙層繞組不超過70K,其中機座號400不超過90K,從而提高了電動機
運行時的安全可靠性。如果用戶需要還可以增加定子繞組溫度監(jiān)控裝置。
3.2 轉子
轉子采用熱套工藝將鑄鋁轉子固定在軸上,轉子經(jīng)動平衡校驗,電動機運行平穩(wěn),振
動小、噪聲低。
3.3 接線盒
本系列電動機接線盒具有良好的防爆和防護性能,進線方式為橡套電纜和防爆撓性管
兩種結構,接線盒位于機座的頂部,可以前、后、左、右四個方向進線。
3.4 風扇、風罩
全系列電動機風扇經(jīng)靜平衡校驗與軸采用鍵聯(lián)接,運行平穩(wěn)。風罩為鋼板結構,在防
止一定大小的固體異物進入殼內的前提下,具有最大的通風面積和最好的通風散熱效果,
防護等級為IP20。
3.5 軸承和軸承室
電動機軸承采用電機專用低振動、低噪聲軸承,H132及以下采用雙面密封軸承,在軸
伸端裝有波形彈簧墊片,以適度的彈力壓靠軸承,有效地抑制電動機運轉時產生的振動和
噪聲,H160及以上電動機采用內、外蓋結構,并在軸承部位采用擋圈軸向固定,有效地防止
電動機轉子的軸向竄動,H160及以上電動機軸承結構設置有注排油裝置,可不停機加注軸
承潤滑脂。根據(jù)用戶要求還可增設軸承溫度監(jiān)控裝置,當軸承運行異常過熱時可自動報警
或停機。
3.6 在出廠時機座號 250~355 電動機的軸伸端安裝有軸承鎖緊裝置,在運輸過程中可有
效保護電動機軸承不致受損。
3.7 電機的保護
本系列電動機在正常運行情況下可避免火花、電弧和危險溫度的產生,對于非正常運
行情況下,則需借助于外加保護裝置,用戶可根據(jù)t 時間和起動電流比IA/IN正確地選用
E
外加保護裝置,使電動機安全運行。
33 Construction Features
3.1 Stators
The windings are wound with thick enamel wire. The complete stator winding cores are
vacuum-press-impregnated to a solid integrity to ensure the gaps between wires to be filled well.
The VPI process enables the stator windings to possess excellent electrical and mechanical
properties, high thermal stability and moisture-resistant ability.
The insulation is Class F. In accordance with GB3836.3-2000, the temperature-rise limit
values in windings of increased safety motors should not exceed 80k for single layer windings
and 70k for double layer windings, and moreover, 90k maximum for motors frame size H400.
AIGC
YA系列電動機是一種專門設計為在存在爆炸性粉塵或可燃性氣體環(huán)境中安全運行的三相異步電動機,其采用"增安"(Exia)防爆技術。增安型電機通過選用特殊的絕緣材料、加強內部結構設計以及提高繞組間的電氣間隙和爬電距離等措施,使得在正常操作條件下產生的熱量不易引發(fā)周圍爆炸性環(huán)境的點燃,從而確保了設備在這些危險區(qū)域內的安全性。
這種電動機通常具有較高的防護等級IP55,防止固體物體侵入及防止灰塵進入,同時配備適當?shù)娘L扇散熱系統(tǒng)以保持電機溫度在安全范圍內。YA系列增安型三相異步電動機廣泛應用于石油、化工、礦山、冶金、電力、糧食加工等多個行業(yè)中的易燃易爆場所,作為驅動各種機械設備的重要動力源。
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