适用范围 Application

DTSD8777 三相四线电子式多功能电表采用集成电路技术，运用软件算法，根据电能表有关国际(IEC) 标准和我国电力行业标准DL/T614-2007、DL/T645-2007 和国家电网系列标准等设计制造。它集各种计量、监控、报警、显示、通讯功能于一身，具有较高的准确度和可行性。精确计量有功和无功电能，且可以通过红外通讯方式抄电量，读数直观且使用方便。适用于各电厂、变电站、计量关口和企事业单位。

The DTSD8777 three-phase four wire electronic multifunctional electric meter adopts the latest integrated circuit technology and advanced software algorithms. It is designed and manufactured according to relevant international (IEC) standards for electric energy meters, as well as Chinese power industry standards DL/T614-2007, DL/T645-2007, and national grid series standards. It integrates various measurement, monitoring, alarm, display, and communication functions, with high accuracy and feasibility. Accurate measurement of active and reactive energy, and the ability to read electricity through infrared communication, with intuitive readings and convenient use. Suitable for various power plants, substations, metering gateways, and enterprises and institutions.

功能特点 Features

◇ 电能计量：计量正反向有功和无功总电量及分时电量、四象限无功总电量。

◇ 参数监测：能测量各相电压、电流、功率因数、有功功率、无功功率、视在功率及三相总有功功率、总无功功率、总是在功率、功率因数、频率和表内温度等。

◇ 分时计量：分时计量正反向有功电量、也可选择尖、峰平、谷分时段功能。

◇ 数据储存：可按月储存12 个月的每月电量数据，可按月储存每月的总、尖、峰、平、谷电量等数据。

◇ 显示功能：大屏幕，宽视角液晶显示，具备丰富的状态指示和汉字提示符，带背光；可显示最近3 月的每月电量数据。

◇ 通讯功能：可通过按键显示、红外学机及RS485 通讯接口抄表，配合抄表系统，可抄读电表的各项电量数据，支持DL/T645-2007 通讯规约。

◇ Electric Energy Measurement: Measures total forward and reverse active and reactive energy, time-of-use energy, and four-quadrant total reactive energy.

◇ Parameter Monitoring: Can measure phase voltages, currents, power factor, active power, reactive power, apparent power, as well as total three-phase active power, total reactive power, total apparent power, power factor, frequency, and the temperature inside the meter.

◇ Time-of-Use Measurement: Measures forward and reverse active energy by time of use, and also supports selecting peak, peak, flat, and valley time periods.

◇ Data Storage: Can store monthly energy data for 12 months, including total, peak, peak, flat, and valley energy for each month.

◇ Display Function: Large screen, wide-angle LCD display with rich status indicators and Chinese character prompts, with backlight; can display monthly energy data for the past 3 months.

◇ Communication Function: Reading can be done via button display, infrared learning machine, or RS485 communication interface; in combination with a meter reading system, all energy data of the meter can be read, supporting DL/T645-2007 communication protocol.