产品特点 Product features

• 测量三相电网所有电量U、I、P、Q、S、PF、F 等，并可进行需量统计；

• 四象限电能计算；

• 分时精确计量单相/ 三相交流电网中双向有功电能；具有1 套时段表、4 种费率、8 个计费时段的复费率功能每月电量指定日期自动转存，可保存3 个月的历史数据，高精度时钟，确保日计时误差小于0.5 秒/ 天

• 测量电力网络中电压、电流的2 ～ 31 次谐波含有率、总谐波畸变率THD；

• 测量电力网络的电压、电流正序、负序、零序，不平衡度，电压波峰系数、电流百分含量等电网质量参数

• 提供两路有功电能，无功电能脉冲输出；

• 标配RS-485 通讯接口，工业标准ModBus 通讯协议，

• 可选配1-4 路开关输入功能，采用于接点电阻信号输入方法；

• 可选配1-4 路继电器的开关i 输出功能，

• 可选配1-4 路模拟量变送输出4-20mNO-20mA 或1-5V/0-5V，

• 可实现电压、电流的相序判断，断相检测等功能；

• 大屏幕液晶显示；

•SOE 事件记录功能( 上电、掉电、清零、清需量、编程、校时事件)；

•UIPQ 需量记录最大值发生时间的数据。

• Measure all electrical quantities U, I, P, Q, S, PF, F, etc., of a three-phase power network, and perform demand statistics;

• Four-quadrant electric energy calculation;

• Accurate time-of-use metering of bidirectional active energy in single-phase/three-phase AC networks; features one set of time period tables, four types of rates, and eight billing periods with complex rate function; monthly energy automatically saved on a designated date; can store historical data for three months; high-precision clock ensures daily timing error is less than 0.5 seconds per day;

• Measure the harmonic content (2nd to 31st) and total harmonic distortion (THD) of voltage and current in the power network;

• Measure positive sequence, negative sequence, zero sequence, unbalance, voltage crest factor, current percentage content, and other power quality parameters of the power network;

• Provide two-channel pulse output for active and reactive energy;

• Standard RS-485 communication interface, industrial standard ModBus communication protocol;

• Optional 1–4 channel switch input function, using contact resistance signal input method;

• Optional 1–4 channel relay switch output function;

• Optional 1–4 channel analog output 4–20mA or NO–20mA, or 1–5V / 0–5V;

• Can realize functions such as voltage and current phase sequence judgement and phase loss detection;

• Large-screen LCD display;

• SOE event recording function (power-on, power-off, clear, demand reset, programming, time calibration events);

• UIPQ demand record capturing time of maximum value data.