CN103236743B - 组合式智能非晶合金变压器 - Google Patents

组合式智能非晶合金变压器 Download PDF

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CN103236743B
CN103236743B CN201310163644.8A CN201310163644A CN103236743B CN 103236743 B CN103236743 B CN 103236743B CN 201310163644 A CN201310163644 A CN 201310163644A CN 103236743 B CN103236743 B CN 103236743B
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杨红卫
黄家旗
孙保军
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Henan Longxiang electric Limited by Share Ltd
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Abstract

本发明涉及组合式智能非晶合金变压器，可有效解决使用寿命短，能耗高，自动化控制程度低的问题，其解决的技术方案是，包括壳体和置于壳体内的非晶合金变压器、自动调压器、电流互感器、控制器和接触器，非晶合金变压器与壳体上的真空有载调压开关相连，非晶合金变压器分别接自动调压器和电流互感器，电流互感器分别与智能电容器、控制器、接触器相连，控制器与智能电容器相连，无线模块和光纤模块并联接控制器，无线模块的天线与通讯基站的天线经无线通讯信号相连，通讯基站与计算机经无线通讯信号相连，本发明结构简单，新颖独特，成本低，自动化控制水平高，节能效果好，有良好的社会和经济效益。

Description

组合式智能非晶合金变压器
技术领域
本发明涉及电器，特别是一种组合式智能非晶合金变压器。
背景技术
目前，在我国广大的配电系统网络中，由于配电设备多采用传统的配电设备，设备技术落后，损坏率高，直接影响到配变台区的正常运行。在实际运行过程中存在着如下问题：
1，运行损耗过高。未采用高效节能变压器，变压器自身损耗大，
据相关资料统计表明，配电变压器损耗约占配电网损耗的30-60﹪，其中空载损耗约占变压器总损耗的50-80﹪。特别是农村配电网，由于农业生产的季节性和农村外出务工人员的流动性，农村配电网负荷泼动较大，一般农村配变高负荷期不超过3个月，长期处在空载状态，导致空载损耗过高；
2，自动化程度低。缺乏监控、管理后台和相应的通讯设备，表、电力参数检测、控制等完全依靠人工，效率低，效益差；
3，供电不可靠。传统的配电台区高压侧一般仅有跌落式熔断器，
低压侧为熔断器、普通空气开关、双热金属片过流保护等，保护不精确，常引起越级跳闸，大面积停电；
4，供电质量差。1电压合格率低。传统的配电变压器缺少自动调压装置，当配电网电压过低时，输出电压随之降低。电压降低至额定电压的10﹪时，电流相应增大，烧毁用电设备电动机，引起线损增大；配电网电压过高时，输出电压随之升高。电压过高超出额定电压的10﹪时，配变铁芯磁通密度增加，变压器损耗增大，引起谐振，产生谐泼，影响用电设备，如：白炽灯及家用电器等的正常使用，严重时可造成用电设备烧毁。2三相有功不平衡。配变台区低压三相负荷不平衡普遍存在，不平衡电流会降低变压器出力，不平衡电流会增加线路和变压器铜损，在极限的情况下，变压器铜损会增加3倍。3无功补偿效果差。通常采用的无功补偿装置，仅检测线电压和一相电流，以功率因数为投切依据，容易造成单相的过补偿和欠补偿，轻载时会出现投切振荡，加剧了电压不稳定状况，损坏投切开关和其它用电设备；分级少，不宜细致分组。如200KVA变压器常规按60Kvar补偿容量分3级配置，单只电容容量为20Kvar，对于20Kvar以下的无功负荷无法补偿，仅此一项变压器20年寿命期内多损耗31.5万度电能。因此，变压器的改进和创新势在必行。
发明内容
针对上述情况，为克服现有技术之缺陷，本发明之目的就是提供组合式智能非晶合金变压器，可有效解决使用寿命短，能耗高，自动化控制程度低的问题。
本发明解决的技术方案是，包括壳体和置于壳体内的非晶合金变压器、自动调压器、电流互感器、控制器和接触器，非晶合金变压器与壳体上的真空有载调压开关相连，非晶合金变压器分别接自动调压器和电流互感器，电流互感器分别与智能电容器、控制器、接触器相连，控制器与智能电容器相连，无线模块和光纤模块并联接控制器，无线模块的天线与通讯基站的天线经无线通讯信号相连，通讯基站与计算机经无线通讯信号相连。
本发明结构简单，新颖独特，成本低，自动化控制水平高，节能效果好，有良好的社会和经济效益。
附图说明
图1为本发明的电器部件连接框式图。
图2为本发明的电路连接图。
图3为本发明的立体结构图。
具体实施方式
以下结合附图，对本发明的具体实施方式作详细说明。
由图1、2给出，本发明包括壳体和置于壳体内的非晶合金变压器、自动调压器、电流互感器、控制器和接触器，非晶合金变压器1与壳体13上的真空有载调压开关12相连，非晶合金变压器1分别接自动调压器2和电流互感器3，电流互感器3分别与智能电容器5、控制器6、接触器4相连，控制器6与智能电容器5相连，无线模块7和光纤模块8并联接控制器6，无线模块7的天线11与通讯基站10的天线经无线通讯信号相连，通讯基站10与计算机9经无线通讯信号相连。
为保证使用效果，所述的接触器4为低压交流接触器，由交流接触线圈4a和交流接触开关4b相连构成；
所述非晶合金变压器1的低压侧输出三相四线电源端分别连接于控制器6和智能电容器5的工作电源输入端，以提供辅助工作电源；
所述非晶合金变压器1的低压侧输出三相四线电源端的三根相线分别穿过电流互感器3的贯穿孔，连接于接触器4至电源输出端，构成电源主回路；
所述的电流互感器3的二次侧输出端与控制器6的电能计量模块输入端连接，构成电能计量电路；
所述控制器6与智能电容器5用RS485接口A-A、B-B（207、208）连接，以读取智能电容器5的工作状况信息，并予以监控上传信息；
所述控制器6与通信基站10通过GPRS无线网络与安装有后台操作软件的前置端的计算机9，无线连接，完成电力参数数据、监控指令的上传和接收的通讯传输任务。
如图2所示，非晶合金变压器1的低压侧三根相线202分别通过三只电流互感器3连接于接触器4的进线端，接触器4的出线端至输出负载；电流互感器3的二次侧分别连接于控制器6的电能计量模块输入端205，构成电能计量电路；
将三相四线电源线202同时连接于控制器6和智能电容器5的工作电源输入端210，以提供辅助工作电源；
所述控制器6的通讯接口207与智能电容器5的接口208分别连接，以读取智能无功补偿电容器的工作状况信息，并予以监控上传信息；
所述控制器的控制信号输出端211与接触器的分合闸线圈212按分闸-分闸、共用-共用、合闸-合闸依次连接，按照控制器6发出的控制指令，执行电源分合闸通电或断电；
控制器4与通信基站10通过GPRS无线网络与安装有后台操作软件的前置端计算机9无线连接，完成电力参数数据、监控指令的上传和接收的通讯传输任务。
如图3所示，非晶合金变压器1与壳体上的真空有载调压开关12相连，并整合为一体，构成具有真空有载调压非晶合金变压器；电流互感器3、控制器、智能电容器、接触器，按照规定的低压电器安装接线规范，进行安装接线相互连接后，安装在金属外壳控制箱内，并整合为一体，构成控制箱；而后，将控制箱固定在具有真空有载调压非晶合金变压器的器身上，即得组合式智能非晶合金变压器。
基于上述，所述非晶合金变压器是将真空有载调压开关整合为一体的非晶合金变压器，实际运行中，起到稳定电压的作用，提高了低压电网的电压质量。非晶合金变压器比传统的硅钢带变压器空载损耗下降约75﹪，节能效果显著。本发明具有过零投切功能，即：电压过零合闸和电流过零分闸。开关通断时响应速度快，不产生涌流，触点不烧结，显著提高了电容器及投切开关的使用寿命；三相共补、三相分补、混合补偿等组网方式，以达到控制三相平衡、精确控制功率因数、避免系统出现过补、欠补和三相不平衡等问题。实际运行中，解决了三相有功不平衡问题，提高了低压电网的供电质量，本发明利用高效节能技术、计算机技术与无线移动通信技术，从而开发的一种组合式智能非晶合金变压器。适用于配电系统用电环境，完成配变台区的智能检测监控，克服了配电系统，运行损耗高、自动化程度低、供电不可靠、供电质量差等运行中存在的问题。
要指出的是，本申请中，各部件均为市售产品公知技术，本申请的贡献在于将各部件科学的组合在一起，构成新型的组合式智能非晶合金变压器，成本低，节能，实施例仅用以具体说明本申请的技术方案，而非对其限制；尽管参照较佳实施例对本发明进行了详细的说明，所属领域的普通技术人员应当理解：依然可以对本发明的具体实施方式进行修改或者对部分技术特征进行等同替换；而不脱离本申请技术方案的实质的技术方案，均应涵盖在本申请请求保护的技术方案范围当中。

Claims (4)

1.一种组合式智能非晶合金变压器，包括壳体和置于壳体内的非晶合金变压器、自动调压器、电流互感器、控制器和接触器，其特征在于，非晶合金变压器(1)与壳体（13）上的真空有载调压开关（12）相连，非晶合金变压器(1)分别接自动调压器（2）和电流互感器（3），非晶合金变压器（1）的低压侧输出三相四线电源端的三根相线分别穿过电流互感器（3）的贯穿孔，连接于接触器（4）至电源输出端，构成电源主回路，电流互感器（3）分别与智能电容器（5）、控制器（6）、接触器（4）相连，控制器（6）与智能电容器（5）相连，无线模块（7）和光纤模块（8）并联接控制器（6），无线模块（7）的天线（11）与通讯基站（10）的天线经无线通讯信号相连，通讯基站（10）与计算机（9）经无线通讯信号相连；
所述的接触器（4）为低压交流接触器，由交流接触线圈（4a）和交流接触开关（4b）相连构成。
2.根据权利要求1所述的组合式智能非晶合金变压器，其特征在于，所述的电流互感器（3）的二次侧输出端与控制器（6）的电能计量模块输入端连接，构成电能计量电路。
3.根据权利要求1所述的组合式智能非晶合金变压器，其特征在于，所述控制器的控制信号输出端（211）与接触器的分合闸线圈（212）按分闸-分闸、共用-共用、合闸-合闸依次连接，按照控制器（6）发出的控制指令，执行电源分合闸通电或断电。
4.根据权利要求1所述的组合式智能非晶合金变压器，其特征在于，所述控制器（6）的通讯接口（207）与智能电容器（5）的接口（208）分别连接，以读取智能无功补偿电容器的工作状况信息，并予以监控上传信息。
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