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HFK 数显电力仪表
HFK Digital Display Power
Meter
产品概述 /Product description
智能数显仪表适用于电力电网、自动化控制系统中队电压、电流、有功功率、无功功率、视在功率、功率因素、频率以及四项限电能等电参量的测量,由数
码管 (LED) 或液晶 (LCD) 直接显示。具有显示直观、精度高、性能稳定、隔离性强、抗振动等有点。可选配多种扩展功能,包括 RS-485 通讯、开关量输入、
开关量输出和模拟量变送输出等,丰富的外型尺寸可方便代替指针式仪表。
本产品结构简单、美观大方、性能稳定、安装方便,采用国网标准栅栏式接线端子,间距 7.62mm。
The intelligent digital display instrument is suitable for the measurement of electric power grid, automatic control system squadron voltage, current, active
power, reactive power, apparent power, power factor, frequency and four limit electric energy and other electrical parameters, by digital tube (LED)
Or the liquid crystal (LCD) is displayed directly. It has the advantages of intuitive display, high precision, stable performance, strong isolation and anti-
vibration. A variety of extended functions are available, including RS-485 communication, digital input, digital output and analog output. The rich external
dimensions make it easy to replace the analog meter.
The product has simple structure, elegant appearance, stable performance and convenient installation. It adopts the national standard fence type
terminal block with a spacing of 7.62mm.
技术指标 /Technical indicators
测量精度 Measurement Accuracy 信号输入 Signal input
电压 Voltage 0. 2 级 接线方式 Connection mode 单相、三相四线、三相三线
电流 Electric current 0. 2 级 额定电压 Rated voltage AC 57.7V、AC 100V、AC 220V、AC 380V
有功功率 Active power 0. 2 级 额定电流 Rated current AC 1A、AC 5A
无功功率 Reactive power 0. 2 级 过负载 Overload 电压:1.2 倍 ( 持续 ),2 倍 /1 秒 ( 瞬时 )
功率因数 Power factor 0. 2 级 功耗 Power waste 电流:1.2 倍 ( 持续 ),10 倍 /5 秒 ( 瞬时 )
频率 Frequency ±0. 02Hz 阻抗 Impedance 电压:<1VA/ 相,电流:<0.4VA/ 相
有功电能 Active power 0.5 级 电压:>300kΩ,电流:<20mΩ
频率 Frequency 45~65Hz
无功电能 Reactive power 1 级或 0. 5 级
环境 Environmental Science
辅助电源 /Auxiliary power supply 工作温度
工作电源 Working power supply AC 220V( 默认 )、AC/DC80-275V Working temperature -10℃ ~+55℃
电功耗 Power consumption 小于 4VA 存储温度 -25℃ ~+70℃
功能模块 /Functional module Storage temperature
通讯接口 支持 RS-485 通讯,Modbus-RTU 协议, 相对湿度 Relative humidity ≤ 93%,无腐蚀性气体场所
Communication interface 波特率:1200~38400bps 海拔 altitude ≤ 2500m
开关量输入 Switching input 干结点输入 安全 Security
无源继电器输出,容量:AC250V/5A,DC
开关量输出 Switching output 绝缘电阻
30V/5A >100MΩ
变送输出 Converter output 模拟量输出:DC0/4~20mA Insulation resistance
电能脉冲 支持 2 路电能脉冲输出,常数:5000imp/ 交流耐压 AC 4KV
Electric energy pulse KWh(Kvarh) AC withstand voltage
Product Catalogue 23