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产品中心

 

科技创造未来  ·  品质成就梦想

光伏发电箱式逆变一体机

光伏发电升压变电站

矿用智能型隔爆移动变电站

成来电气科技有限公司,成立于2010年9月,位于吉林省白城市镇赉县,注册资本1亿元,公司占地面积25万平米,其中厂房建筑面积12万余平米,现拥有员工450余人。公司业务领域集变压器、复合材料生产及电力工程安装于一体,具有先进的生产及检测设备300余台套,具备年产电力变压器设备2000万千伏安,风力发电机舱罩和导流罩1500台套生产能力,属于科技创新型企业和国家级高新技术企业。

 

公司生产的产品种类有十二大类1100多个品种,主要为电力变压器系列产品、组合式发电升压设备系列产品、高低压成套设备系列产品、矿用隔爆型电器系列产品、冶炼用电炉变压器系列产品以及、生产风力发电机舱罩、导流罩...

成来电气科技有限公司

CHENGLAI

科技创造未来  ·  品质成就梦想

企业资质

 

企业资质
企业资质
企业资质
企业资质
企业资质

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荣誉坚定信念

 

  公司及生产的产品被行业及行政管理部门多次嘉奖,公司被省科技厅授予“吉林省高新技术企业”称号、“重合同守信用AAA级企业”、“国家安全生产标准化二级企业”、“省级精神文明单位”、“国家变压器质检中心抽检合格单位”、“吉林省质量奖”;产品获得“行业一等品”、“国家能源科技进步奖”、“吉林省名牌产品”等称号。

 

做百年企业 交天下朋友

  以质量求生存,以诚信谋市场,这事公司生产经营中不可动摇的理念。自转制以来企业经营秩序井然,经营状况良好,产品在销售区域及行业内市场占有率达50%以上,部分产品销往全国各地,冶炼用变压器已出口到中东市场。

 

客户满意 永恒的追求

  优质的产品,诚信的服务是公司的经营宗旨,用户的满意是公司永远追求的目标,诚挚的邀请社会各界朋友来我司考察、指导、共同发展!

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""
"点击查看原图"
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合作客户

科技创造未来  ·  品质成就梦想

合作客户
合作客户
中国华能集团与我公司建立合作关系
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公司简介

成来电气科技有限公司,始建于1970年 属于科技创新型企业


生产运营

公司销售网络遍布全国,如国家电网、农网、五大发电集团、地方水电等


营销策略

推行变革管理,建立企业精益管理的基础,搭建信息化精益管理体系


文化特色

成来电气科技有限公司,始建于1970年 属于科技创新型企业


主要业绩

公司产品取得《PCCC产品认证》等节能认证及其他多项证书

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科技创造未来  ·  品质成就梦想

矿用隔爆型电器系列设备包括多少种类型

矿用电气设备分为两大类,一般型电气设备和矿用防爆型电气没备zhi。 矿用一般型电气设dao备是一种煤矿井下用的非防爆型电气设备,它只能用于井下无瓦斯煤尘爆炸危险的场所。对其基本要求是:外壳坚固、封闭,能防止从外部直接触及带电部分;防滴,防溅、防潮性能好;有电缆引入装置,并能防止电缆扭转、拔脱和损伤;开关手柄和门盖之间有连锁装置等。 矿用一般型电气设备外壳的明显处,均有清晰的永久性凸纹标志"KY"。 根据不同的防爆要求,矿用防爆型电气设备主要分为矿用隔爆型、矿用增安型、矿用本质安全型、矿用正压型、矿用充砂型、矿用浇封型及矿用气密型等。 矿用隔爆型电器系列 1.矿用隔爆型电气设备 所谓隔爆,就是将电气设备的带电部件放在特制的外壳内,该外壳具有将壳内电气部件产生的火花和电弧与壳外爆炸性混合物隔离开的作用,并能承受进入壳内的爆炸性混合物被壳内电气设备的火花、电弧引爆时所产生的爆炸压力,而外壳不被破坏,同时能防止壳内爆炸生成物向壳外爆炸性混合物传爆。这种特殊的外壳叫隔爆外壳。具有隔爆外壳的电气设备,称为隔爆型电气设备。 2.矿用增安型电气设备 增安型电气设备的防爆原理是:对于那些在正常运行条件下不会产生电弧、火花和危险温度的矿用电气设备,为了提高其安全程度,在设备的结构、制造工艺以及技术条件等方面采取一系列措施,从而避免了设备在运行和过载条件下产生火花、电弧和危险温度,实现丫电气防爆。增安型电气设备是在电气设备原有的技术条件上,采取了一定的措施,提高其安全程度,但并不是说这种电气设备就比其他防爆形式的电气设备的防爆性能好。增安型电气设备的安全性能达到什么程度,不但取决于设备的自身结构形式,也取决于设备的使用环境相维护的情况。能制成增安型电气设备的,仅是那些在正常运行中不产生电弧、火花和过热现象的电气设备,如变压器、电动机、照明灯具等。 3.矿用本质安全型电气设备 本质安全型电气设备的防爆原理是:通过限制电气设备电路的各种参数,或采取保护措施来限制电路的火花放电能量和热能,使其在正常工作和规定的故障状态下产生的电火花和热效应均不能点燃周围环境的爆炸性混合物,从而实现了电气防爆。这种电气设备的电路本身就具有防爆性能,也就是从“本质”上就是安全的,故称为本质安全型(以下简称本安型)。采用本安电路的电气设备称为本质安全型电气设备。 4.正压型电气设备 正压型电气设备的防爆原理是:将电气设备置入外壳内,壳内无可燃性气体释放源;将壳内充入保护性气体,并使壳内保护性气体的压力高于周围爆炸性环境的压力,以阻止外部爆炸性混合物进入壳内,实现电气设备的防爆。 正压型电气设备的标志为“p”,标志全称是“Expl”。 5.矿用充砂型电气设备 充砂型电气设备的防爆原理是:在电气设备的外壳内充填石英砂粒,将设备的导电部件或带电部分埋在石英砂防爆填料层之下,使之在规定的条件下,在壳内产生的电弧、传播的火焰、外壳壁或石英砂材料表面的过热温度都不能点燃周围爆炸性混合物。充砂型电气设备用于在使用时活动零件不直接与填料接触的、额定电压不超过6kV的电气设备。  矿用隔爆型电器系列
2020-09-16 09:08

市总工会推进吉林省精益工匠示范项目落地,精心打造白城“样板”

  7月23日,吉林省精益工匠示范单位建设项目(成来电气)启动大会在镇赉举行。 市人大常委会副主任、市总工会主席叶静波在启动大会上讲话。 市总工会副主席柏惠山,镇赉县人大常委会副主任、县总工会主席张胜利等市县两级工会领导和精益管理提升项目签约双方企业代表参加启动大会。 镇赉县政府副县长邰国文主持会议。 成来电气公司和吉林东瑞公司的代表分别在会上发言。 会上,成来电气科技有限公司与吉林东瑞精益管理咨询有限公司,双方就落实精益工匠示范单位建设项目签约培训合同。 会后,叶静波到企业劳模创新工作室、职工生产车间和职工宿舍等地进行了实地查看,并了解了职工岗位技术创新、生产生活、业余文化等情况。 吉林省精益工匠培育示范项目,是吉林省总工会推进产业工人队伍建设改革的创新之举和努力建设知识型、技能型、创新型劳动者大军的具体探索。通过创新培训模式,实现由培训个人向培训企业团队转变;由课堂培训向打造精益样板企业转变。 由老国有企业改制而来的成来电气科技有限公司(简称成来电气),是一家集科研、设计、生产、销售和维修于一体的高新技术企业。截至今年6月末,成来电气与国内多家大型发电集团签订合同2.8亿元,较上年同期增长356%;完成产值1.14亿元,较上年同期增长243%;销售收入8000余万元,较上年同期增长152%。作为镇赉民营经济的明星企业,拉齐“产品智能”优先“管理智能”的短板,一直是企业管理寻求突破的“瓶颈”,省市县工会推动吉林省精益工匠培育示范基地的落地实施,为面临上市关键期的成来电气开出了一剂“良方”。加之今年7月初,成来电气到长春参观了精益管理实际运行成果后,深受鼓舞。启动大会上,公司董事长、省劳模王喜权动情地说,工会“娘家人”送来的这场精益管理提升的“及时雨”,无论是工作思路的精细设计,还是培训团队的紧密衔接,都坚定了我们做强企业的信心,做精企业的决心。 隶属于东北工业集团的吉林东瑞精益管理咨询有限公司,是成来电气实现精益管理提升的培训核心。自合同签定一年内,他们将结合企业实际,开展精益生产、安全管理、经营指标改善等方面培训,推进精益知识的传递、转化和指导,帮助企业提升现场基础管理,规范和完善生产线作业、生产计划体系,建立职能部门对生产支持的课题和成本改善机制,及自我改善的工作机制。 围绕精益管理提升,实现全员成长,成来电气职工群情激动、满怀信心。看着精益管理培训团队入驻企业,看着项目合同的签订生效,坐在会场的职工们由衷的发出了雷鸣般掌声。“推进精益管理需要全员智慧,只有全员融入精益管理,以实干获得精益,才能实现行业领先的企业梦想。”吉林东瑞精益管理咨询有限公司总工程师张世超签约前的一席话,一石激起千层浪,让成来电气职工眼中的精益管理提升不再是要完成的一项绩效考核指标,而是形成全员参与、全员提升,实现幸福感、获得感最大化的一次质的跨越。  培育精益精神,将精益生产的“火种”形成“燎原”之势。今年,市总工会扎实推进吉林省精益工匠示范项目落地,率先选定成来电气等2家企业,全力打造白城“样板”,同时助力企业培育一支懂精益、用精益、拥有高技能的职工人才队伍。 叶静波在启动大会上指出,一要充分整合资源,打造精益工匠人才培养品牌。通过培育想创新、敢创新、勇创新的企业,叫响做实“精益工匠示范单位”的白城品牌;二要努力创新合作,拓宽精益工匠人才培训内容。引导各级工会借助精益工匠培育示范项目这一平台,激励产业工人技能成才,培育更多工匠人才;三要突出重点环节,构建产业工人技能提升形成体系。加大培养力度,完善培训制度,拓宽职业发展空间,提高待遇水平,完善培养、评价、使用、激励、保障等举措,充分激发技术工人的积极性、主动性、创造性。             (组宣部、经济部)
2020-08-04 11:29

光伏逆变用非晶合金铁心升压变压器工艺与分析

引言 太阳能是最具开发价值的可再生能源之一,光伏发电逐渐成为世界能源供应的主体。太阳能受天气状况、季节变化、昼夜交替等因素影响,日照强度及时长的不确定性,使得光伏发电系统输出功率具有不连续、不稳定的特点,长期低负荷运行成为常态,参考文献[1] 指出宜选用低损耗电力变压器。非晶合金铁心变压器(简称非晶变) 具有极低的空载损耗特性,适合长期性低负荷运行环境,应用于光伏发电有利于减少能耗,提高太阳能对电能的转化率。 1、光伏发电单元模块 目前市场上技术成熟、运行稳定、规模应用的逆变器单机容量为500 ~ 630kW。受制于逆变器容量的限制,光伏电站中一般将光伏组件与逆变器连接成一个最小发电单元,并采用双分裂升压变压器组成一个发电单元模块,即一台升压变压器并联两套逆变器最小发电单元,如图1 所示,有效减少变压器的台数以及限制并联的两台逆变器交流输出侧的环流。   图1 光伏发电单元模块示意图 因此升压变压器容量为1000 ~ 1300kVA,而逆变器输出电压主要有270、315、400V 三种规格,通过光伏升压变压器就地升压到10kV 或35kV,最后送入输配电系统完成并网工作。光伏升压变压器一般是以组合式变压器(美变) 或预装式变电站(欧变) 的成套装置进行供货,本文仅对变压器本体进行分析。 2、光伏用升压变压器 2.1 绕组分裂形式分析 双分裂变压器由1 个高压绕组和2 个低压绕组构成,它的电磁工作原理类似于三绕组变压器。变压器分裂形式可以幅向分裂和轴向分裂,在制造工艺上有一定差异,如图2 所示。   图2 变压器分裂形式示意图 图2a) 所示的幅向分裂一:两个低压绕组位于高压绕组的两侧,拥有两个主空道,制造成本较高,绝缘事故隐患增大,且难以保证两个分裂绕组的半穿越阻抗一致。 图2b) 所示的幅向分裂二:两个低压绕组位于高压绕组的内侧。这种分裂方式,为了确保两组低压绕组的阻抗相同,可以采用交错绕制方式;实际上相当于两组低压绕组做成双层箔绕的形式,但铜箔与铜箔间必须设置绝缘,从而成为两组独立的绕组。如图3 所示。   图3 交错绕制示意图 如果为线绕绕组,则可制成多层圆筒式,但需把线匝分成两股独立的引线引出,使之成为两组低压绕组。缺点是分裂阻抗小,两路低压绕组磁耦合强,运行时相互影响较大。 图2c) 所示的轴向分裂:高低压绕组分别轴向分裂,如同上下对称。这就从结构上和制造上可以保证参数基本一致,分裂阻抗较大,半穿越阻抗几乎相等。因此光伏升压变压器建议采用图2c) 所示的轴向分裂形式。其阻抗计算可参考文中参考文献[2]。 2.2 联接组标号 三次谐波可以在D 接绕组中流通,可以有效减少谐波对电网影响。对于10kV 光伏升压变压器,可用Dy11y11 形式,符合普通配变的习惯。对于35kV 光伏升压变压器,更建议采用Yd11d11 形式。高压为Y 接,相电压为线电压1/3,绕组局放易控制,质量更有保障。 2.3 铁心设计 2.3.1 磁密 光伏逆变器在实际运行时,波形通常处于不对称状况,也就是产生了直流偏磁,通常要求并网时直流电流分量不得超过其交流额定值的1%。发生直流偏磁时,直流分量被升压变压器隔离,虽不会流入电网,但会引起变压器铁心磁密发生叠加而增大,励磁电流和噪声也随之增大,严重时可引起铁心饱和和励磁电流畸变。因此在磁密选取上建议相比较常规产品降低0.05 ~ 0.1T。如用户对噪声要求较高时,参考文中参考文献[3] 磁密和噪声的关系(磁密每升高0.05T,铁心空载噪声增加约2dB,变压器成品则可增加5dB 左右),适当降低磁密设计。 2.3.2 铁心工艺系数 采用轴向分裂的非晶变,铁心窗高相对较高,其非晶铁心工艺系数比同容量常规非晶铁心工艺系数降低3%~ 5%,可简单按下式计算:   式中:KFe1、HW1 表示同容量常规非晶变铁心工艺经验系数和窗高;KFe2、HW2 表示轴向分裂非晶变铁心工艺系数和窗高。 铁心的断口应分布式搭接,搭接长度8 ~ 10mm,不得错层错搭,最外层用硅钢片做成钢扣收紧,以保证铁心性能最佳。 2.3.3 铁心处理 作为铁心制作中最关键的退火处理,目的是消除铁心成型过程中产生的应力,恢复磁特性。根据经验,除了掌握适应各厂家非晶带材的升温、保温、降温工艺曲线,退火炉内的炉温均匀性也是提高铁心品质的重要因素,炉温与铁心温度关系如图4 所示。通过改善退火炉加热环境,合理布置热风循环系统,使各点炉温最大偏差为2.5℃以内,同时在严密的氮气气氛保护下可获得较好的热处理效果[4]。   图4 炉温与铁心温度关系图 铁心表面涂覆有利于抑制铁心振动,降低噪音和减少碎片的产生。如光伏非晶变为油浸式变压器(美变),铁心侧面可用胶水涂覆,铁心收拢搭接口后整体包裹处理,可有效防止变压器运行时非晶碎片散落到油当中引起质量隐患;干式变压器(欧变),则可采用树脂涂覆,涂覆厚度1.0 ~ 1.5mm 为佳。 2.4 温升和绝缘水平 考虑逆变器输出电流谐波的影响,温升设计应将绕组直流损耗、电磁线涡流损耗、谐波影响损耗累计计算。精细的计算有利于控制成本,同时保证变压器最热点温度不超过绝缘材料允许温度。特别提出的是,对于干式变压器,因为轴向分裂绕组较高,在散热空气由绕组底部对流到顶部时,往往造成上部绕组出现10K 以上相对于下部绕组的温差,这就需要降低温升设计或上部绕组的绝缘材料选用更高的耐热等级。 光伏发电往往安装在气候环境恶劣场所,对于高海拔运行地区,绝缘水平和温升限值都要按照GB1094.2和GB1094.11 的规定进行修正。环境温度超过标准规定的正常条件时,温升限值也要注意按超过部分进行减小修正。 2.5 其他工艺要求 轴向双分裂升压变压器的两组低压输入源,通常运行状况都是上下一致的。而当其中一路发生接地故障时,变压器上下将不再对称,此时铁心中失去磁平衡,导致在轴向上产生巨大的短路机械应力,产生巨大隐患。非晶合金铁心截面通常为矩形,绕组的截面形成圆角矩形,这种绕组的幅向受力具有先天缺陷;同时非晶带材不能受力,任何机械应力都可能影响其磁性能和噪声[5]。   图5 干变轴向分裂绕组示意图 在光伏发电无人值班或少人看守的要求下,以上问题在各环节的设计和工艺上都要认真采取必要措施,提高变压器质量可靠性。 2.5.1 低压绕组 低压绕组采用铜箔绕制,上下分裂绕组对称布置,用双层箔绕机一体化同步绕制而成,端部平整度好,尺寸易控制。油浸式变压器的低压绕组内侧必须设置硬质环氧骨架,强度足以承受幅向短路电动力,避免绕组变形和铁心受力;分裂绕组中间的间隙用环氧板填充紧实。干式变压器用树脂浇注成整体,抗突发短路能力大幅提升。 2.5.2 高压绕组 高压绕组同样以中间呈对称布置,合理布置线匝,尽量实现安匝平衡。油浸式变压器的高低压绕组进行套绕,整体进行浸漆处理能进一步提升机械性能。干式变压器将两组分裂绕组整体树脂浇注,形成一体,如图5所示。 2.5.3 引线 轴向双分裂变压器的引线从上部和下部对称的引出。干式变压器的引线相对简单,主要考虑足够的安全距离和引线的固定。 油浸式变压器的引线相对复杂的多。由于引线根数增多,空间布置范围大,尤其注意预留引线布置的油箱空间,增加足够的引线夹来固定引线,以及保证低压引线的电阻平衡。一般要求出厂成品的电阻不平衡率为1%,在产品设计时就应推算准确,选用合适截面的铜排或铜绞线。 2.5.4 接地屏蔽 高低压绕组之间设置接地屏蔽的作用有限。因为谐波含量相比整流变压器的运行环境要低的多,接地屏如处理不好易增加故障隐患,制造成本也提高。 3、结语 针对光伏发电长期低负荷运行的特点,具有极低空载损耗(设计水平代号15 型以上) 的非晶合金铁心升压变压器对提高太阳能转换率无疑是最佳选择。该产品宜采用轴向分裂,结合逆变电路直流偏磁、谐波含量、分裂运行故障的影响,在铁心设计、阻抗计算、温升设计上要进行科学修正,同时在绕组绕制工艺、引线工艺等方面需加强机械性能。通过对这些细节的充分掌握,才能真正设计和制造出安全可靠、性能稳定的新能源产品。 参考文献 [1] 中国电力企业联合会. 光伏发电站设计规范:GB50797—2012[S]. 北京:中国计划出版社,2012:31-37. [2] 贾贺强,谭黎军. 轴向双分裂结构变压器阻抗计算的修正系数和分裂系数分析[J]. 变压器,2005,42(11):1-4. [3] 赵小莹. 非晶合金干变两种结构形式及噪声控制[J]. 机电工程技术,2011,40(3):100-102. [4] 张志立,凌健,李然,等. 大容量干式非晶合金铁变压器的研制[J]. 变压器,2018,55(3):6-8. [5] 崔立君. 特种变压器理论与设计[M]. 北京:科技文献出版社,1996.
2020-07-24 09:02