Hot-sale products

Collector
Main function:The collector can easily modify device's parameters locally / remotely and have reliable safety measures to prevent unauthorized personnel from setting parameters.
To view the product >>
STS three phase four wire electronic pre-paid electricity meter
Main function:metering function, parameter monitoring, data storage, display function, communication function, anti-electric theft function, pre-payment function
To view the product >>
Three-phase four-wire electronic prepaid energy meter
Main function:metering function, parameter monitoring, time-sharing metering, data storage, load curve, display function, communication function, anti-electric theft function
To view the product >>
Single-phase electronic prepaid energy meter
Main function:metering function, parameter monitoring, data storage, display function, load curve, communication function, anti-theft function, prepayment function
To view the product >>
STS single-phase electronic prepaid energy meter
Main function:The electricity meter mainly consists of current, voltage sampling, electric power measurement unit, microprocessor, magnetic retention relay and LCD liquid crystal display.Microprocessor measures active power, And to exchange data with TOKEN through the keyboard, to achieve various control functions.
To view the product >>
IC single-phase electronic prepaid energy meter
Main function:metering function, parameter monitoring, data storage, display function, load curve, communication function, anti-theft function, prepayment function
To view the product >>
Three-phase four-wire electronic prepaid energy meter
Main function:metering function, parameter monitoring, time-sharing metering, data storage, load curve, communication function, anti-electric theft function
To view the product >>
STS three phase four wire electronic pre-paid electricity meter
Main function:metering function, parameter monitoring, data storage, display function, communication function, anti-electric theft function, pre-payment function
To view the product >>

Zhuhai YuJian Science Technology Co., LTD official WeChat

Mailbox：2049334114@qq.com

Mobile phone：18928037049(WeChat with number)

QQ：2049334114

Location：广东省珠海市香洲区表计大厦

Information Online Customer service

HOME>>预见资讯>>新闻资讯

新闻资讯

电度表的工作原理和分类有哪些?

Release date： View count：461

　　电度表也叫做电能表，指测量各种电学量的仪表。随着我国经济的飞速发展，各行各业对电的需求越来越大，不同时间用电量不均衡的现象也日益严重。为缓解我国日趋尖锐的电力供需矛盾，调节负荷曲线，改善用电量不均衡的现象，全面实行峰、平、谷分时电价制度，“削峰填谷”，提高全国的用电效率，合理利用电力资源，国内部分省市的电力部门已开始逐步推出了多费率电能表，对用户的用电量分时计费。如今电度表应用在我们生活的方方面面之中。下面小编来介绍一下电度表的工作原理和分类有哪些?

　　一.电度表的工作原理是什么?

　　当把电能表接入被测电路时，电流线圈和电压线圈中就有交变电流流过，这两个交变电流分别在它们的铁芯中产生交变的磁通;交变磁通穿过铝盘，在铝盘中感应出涡流;涡流又在磁场中受到力的作用，从而使铝盘得到转矩(主动力矩)而转动。负载消耗的功率越大，通过电流线圈的电流越大，铝盘中感应出的涡流也越大，使铝盘转动的力矩就越大。即转矩的大小跟负载消耗的功率成正比。功率越大，转矩也越大，铝盘转动也就越快。铝盘转动时，又受到永久磁铁产生的制动力矩的作用，制动力矩与主动力矩方向相反;制动力矩的大小与铝盘的转速成正比，铝盘转动得越快，制动力矩也越大。当主动力矩与制动力矩达到暂时平衡时，铝盘将匀速转动。负载所消耗的电能与铝盘的转数成正比。铝盘转动时，带动计数器，把所消耗的电能指示出来。这就是电能表工作的简单过程。

　　二.常用电能表的分类有哪些?

　　(1)电能表按其使用的电路可分为直流电能表和交流电能表。交流电能表按其相线又可分为单相电能表、三相三线电能表和三相四线电能表。

　　(2)电能表按其工作原理可分为电气机械式电能表和电子式电能表(又称静止式电能表、固态式电能表)。电气机械式电能表用于交流电路作为普通的电能测量仪表，其中最常用的是感应型电能表。电子式电能表可分为全电子式电能表和机电式电能表。

　　(3)电能表按其结构可分为整体式电能表和分体式电能表。

　　(4)电能表按其用途可分为有功电能表、无功电能表、最大需量表、标准电能表、复费率分时电能表、预付费电能表、损耗电能表和多功能电能表等。

　　(5)电能表按其准确度等级可分为普通安装式电能表(0.2、0.5、1.0、2.0、3.0级)和携带式精密级电能表(0.01、0.02、0.05、0.1、0.2级)。[2]