120E电力仪表 返回列表页

1.概述General

ACR系列网络多功能电力仪表，是针对电力系统、工矿企业、公用设施、智能大厦的电力监控需求而设计的智能表，它集成电力参数的测量以及电能监测和考核管理。

ACR Series Network Multi-Functional Power Meters ，are intelligent meters, designed for power monitoring of Power Systems, industrial and mining establishments, public utility, intelligent building. they integrate the power parameters measurement and electric energy measurement and checking management .

2. 技术参数 Technical parameters

注1：可选功能中，DI：表示开关量输入；DO：表示开关量输出M：表示模拟量输出；

接线方法见末页(如：4DI4DO表示四路开关量输入+ 四路开关量输出)

注2：Profibus与RS485通讯不可同时选择，但可与其他所有功能任意配合使用

注3：接线方法是为几种可选功能的组合，例：订货型号为ACR320EFL(8DI2DO),接线方法见末页：A4+B3+C3

注4： +2C表示：2路RS485通讯(标配1路RS`485通讯，选择+2C表示增加1路RS485通讯)

注5：仪表型号中，ACR3XX系列(ACR320EG除外)可选择配置中性线电流测量功能

注6：配置DI或DO功能时才有事件记录功能

3.3注意事项Notice

3.3.1电压输入 Voltage Input

输入电压应不高于产品的额定输入电压（100V或400V）的120%，否则应考虑使用PT；

在电压输入端须安装1A保险丝；

Input voltage should not higher than 120% of product's Input voltage(100V or 400V), otherwise, should use PT;

1A fuse should be mounted on the voltage Input end；

3.3.2电流输入Current Input

电流输入必须使用外部CT接入。

接线时确保输入电流与电压相序一致，即1号线接线端接A相电压，则5、6号接线端一定要接A相电流，否则会出现显示数值和符号错误；同时确保电流进出线连接正确（标*号端子接进线）；

如果使用的CT上连有其它仪表，接线应采用串接方式；

安装接线时建议使用接线排，不要直接接CT，以便于拆装；

去除产品的电流输入连线前，必须先切断CT一次回路或者短接二次回路！

Current input must use external CT access

When wiring, ensure that the Input current and voltage has same  phase sequence, i.e. if l# terminal is connected with A phase voltage, then 5,6# terminal must be connected with A phase current, otherwise, display value and symbol error may occur; while ensure the connection correctness of current  inlet and outlet (symbol *terminal connecting with inlet);

If the used CT connected with other meters , the connection is adopting series connection mode;

When wiring,using Connector bar is recommended, not connected with CT directly, to facilitate dismounting ;

Before removing product current Input connection, firstly, cutoff CT primary circuit or short the secondary circuit!

3.3.3通讯接线Communication connection

该仪表提供异步半双工RS485通讯接口，采用MODBUS-RTU协议，各种数据信息均可在通讯线路上传送。理论上在一条线路上可以同时连接多达128个仪表，每个仪表均可设定其通讯地址（Addr），通讯速率（buad）也可通过设置选择。

通讯连接建议使用三芯屏蔽线，线径不小于0.5mm2，分别接A、B、COM2，屏蔽层接大地，COM2禁止接大地，布线时应使通讯线远离强电电缆或其他强电场环境。

建议最末端仪表的A、B之间加匹配电阻，阻值范围为120Ω～10kΩ。

具体接线实例见6.6所示。

This meter provides asynchronism half duplex RS485 Communication interface, adopts MODBUS-RTU protocol, various data information may be transmitting on the Communication Line .Theoretically ,on the same Line, meters up to 128 may be connected at the same time, each meter can set up its  Communication address(Addr), Communication rate(buad)may be selected

Communication connection recommendation of three-core shielded wire, its linear diameter is no less than 0.5mm2.separately connecting A, B, COM2 ,the shielded layer connecting earth, COM2 is prohibited by the earth.when wiring, the Communication line shall be far away from strong current cable or other strong electric field environment.

Recommendation of adding matched resistance between A, B of the last meter, the rated resistance range is 120Ω-10kΩ.

4. 编程与使用Program and Usage

4.1测量项目及面板说明(数码显示)Explanation for measurement items and faceplate

仪表面板右侧V123指示灯点亮时，三排数码管分别显示三相电压；I123指示灯点亮时，三排数码管分别显示三相电流；PQλ指示灯点亮时，三排数码管分别显示总有功功率、总无功功率、总功率因数；面板上左边三个灯为功率负号指示灯，当任一负号灯点亮时表明该排显示值为负值；EPQ指示灯点亮表示显示项目为电能，ACR网络电力仪表可以监测四象限电能数据：

On the ACR Network power meters faceplate,when its right side V123 indicator lights, three rows digitrons separately Displays three- phase voltage,I123indIcator lights, three rows digitrons separately Displays  three-phase  current; PQλ indicator lights, three rows digitrons separately Displays total active power, total reactive power, total power factor; but its top-left three indicators as power minus sign indicators, when any minus sign indicator lights, this shows the Displaying is negative value; EPQ indicator Lights，shows the Displaying Item is Electric energy, ACR Network power meters can measure four quadrant Electric energy data:

EPI--吸收有功电能capture active Electric energy

EPE--释放有功电能release active Electric energy

EQL--感性无功电能Inductive reactive Electric energy

EQC--容性无功电能capacitive reactive Electric energy

右侧k、M代表所显示项目的单位数量级为千或兆。

Right side k、M: k=kilo; M= million

例：如下图所示，“EPQ"指示灯亮，一排数码管显示EPI，表示当前显示吸收有功电能，k指示灯亮，表示电能单位为kWh，读电能时将第二排数码管和第三排数码管连读，如下图所示电能为123456.78kWh。

Example: As below figure shows: EPQ indicator lights, the first row digitrons Display EPI, currently Display the capture active Electric energy, K indicator "(Lights, shows Electric energy Unit is kWh, the Electric energy reading value is the second row digitrons plus the third row digitrons, the Electric energy shown in below figure is 123456.78kWh.

注：

1、通常情况下，用户都是用电状态，此时应读取EPI值（吸收有功电能）；发电厂向外发电时读取EPE值（释放有功电能）。如果用户既有用电情况、又有发电机向外发电情况，则仪表EPI和EPE里都会有电能显示。

2、ACR仪表显示电能值时，无特殊说明普通型指示的电能数据为一次侧电能，此值无须再乘以电流、电压变比。液晶复费率型指示的电能数据为二次侧电能值，该值乘以电流、电压变比才是一次侧电能值。

3、当用户发现电能或功率指示明显不正常时，可通过查看三个分相功率确认有无接线错误。切换到PQλ指示灯亮（不带PQλ页面的可在页面按回车键查看分相功率，规格不同略有差异），三行分别显示总有功功率、总无功功率、三相功率因数时，按回车键，此时三行分别显示PA、PB、PC三个分相有功功率，若用电状态时存在任一分相功率为负（负号指示灯亮）均属不正常。检查该相电流电压接线，观察是否存在CT进出线反，或电压与电流相序不对应等情况。若用户采用3相3线接线方式（2CT接法），只显示两个分相功率，不能使用上述方法判断，建议客户咨询我司技术支持人员。

4、各型号产品对应的前面板会有所不同，图示面板仅供举例参考。

Note:1.In a general way, users is in electricity utilization, at this time, read EPI value (capture active Electric energy); if power plant output of its power, read  EPE value (release active Electric energy) .If users use power and generate power for other, then Electric energy display appear in meters of EPI and EPE。

2. When ACR meters display Electric energy value, LED (digitron) indicated Electric energy data is the primary side Electric energy, this value need not be multiplied by current, voltage transformation ratio. But LCD (liquid crystal) indicated Electric energy data is the secondary side Electric energy value, This value need be multiplied by current, voltage transformation ratio to display primary side Electric energy value.

3. When user discover that the display of Electric energy or power is abnormal clearly, may check three phase splitting power value and symbols for error wiring. Switch to PQ A 'indicator lights, three - row digitrons display total active power, total reactive power, three-phase power factor, pressing ENTER button, for long time, at this time, three - row digitrons separately display PA.  PB.  PC three splitting phase active power, if use power but any phase splitting power is negative(minus sign indicator lights).it is abnormal. Check This phase current, voltage connection, to see if CT inlet and outlet is reversal, or voltage and current with improper phase sequence If the user adopts the three- phase-three-wire connection mode (2CT connection), pressing ENTER button for long time, to Display two phase splitting power, the above judge method is not proper, please consult our technical support personnel.

4. Corresponding to the front panel of each type of product will be different,graphic panel can only be for reference.

5. 产品接线方法Wiring method

（注：如与仪表壳体上接线图不一致，以仪表壳体上接线图为准）

(Note：if it is different from the Wiring diagram on the meters cabinet, follows the Wiring diagram on the meters cabinet)

根据不同的设计要求，推荐在电源、电压输入端子增加保险丝以满足相关电气规范的安全性要求。

According to varied design requirements, power and voltage input terminals are recommended with fuse to meet with the safety performance requirements of prevailing electric codes.