|
|
|
|
HRJFD现场数字局部放电检测分析系统 |
|
|
HRJFD系统先后在葛州坝500kV开关站、武汉凤凰山500kV变电站、沈阳变压器厂、合肥变压器厂、衡阳变压器厂、广州供电局、武汉供电局、湖南电力局、重庆变压器厂、武钢等处对数百台变压器,电抗器进行局部放电超声测量。该系统工作可靠、操作方便,满足测量要求。作为电力部“八五”重点推广项目之一,目前该电装置已广泛应用于东北、华中、华东、华北和西北等有关单位的电力测试研究及现场测量。
纯程控工作方式:全汉字菜单提示:任意存贮、打印;自动生成检验报告;二维及三维局部放电图谱显示;采用数字开窗技术,抗干扰能力强;双通道测量及数字差分技术,可同时测量两个试品或一个试品两个测量点的局部放电信号,可方便地分析局部放电信号的来源。本产品系国家“七五”重点科技攻关项目和电力部“八五”推广项目。先后在葛洲坝500kV开关站,武汉凤凰山500kV变电站,沈阳变压器厂等对数百台变压器进行测试,工作可靠,操作方便。
专门用于变压器、电机、互感器、电容器、电缆、GIS、开关、避雷器等电器设备的局部放电测量,性能符合IEC-270标准及GB7354标准。全汉化软件,菜单式操作,测量与分析可任意存储,打印局部放电图形及数据,自动生成试验报告,2个测量通道,有椭圆、直线、二维、三维彩色显示方式。
检测灵敏度:0.5pC 测量频带宽:1-200kHz
增益动态范围:120dB以上 采样精度:8位±1/2LSB
整套设备还包括计算机主机、显示器和打印机等(不含高压部分)。 |
|
|
|
|
|
HRJFD现场数字局部放电检测分析系统 |
|
|
专门适合电器设备制造厂、发供电运行部门、电力建设、电力安装、调试施工企业的野外现场检验作业。且更加优良适合于试验室使用。更方便建立测量和定位的数据库,便于进一步分析和管理。
技术参数
测量通道:2通道
检测灵敏度:0.1PC
测量频带:3dB带宽10kHz~300kHz
程控滤波器设置档位
低端 10,20,40kHz
高端 100,200,300kHz
增益动态范围:120dB
同步频率:50,100,150,200或任意Hz
标准脉冲发生器HRJFD-301
标准脉冲电压:10V,5V,2V,1V,0.5V,0.2V六档可调
校准电容:50pF,200pF两档可调
工作电源:AC220V±10%,50Hz |
|
|
|
|
|
HRJFD
Type Digital Partial Discharge Detecting Analytic System |
|
|
The HRJFD system has
carried the ultrasonic measurement to the local discharge
of the hundreds of transformers and reactor in Gezhou Dam
500kV switch station, Wuhan Phoenix Mountain 500kV transformer
substation, Shengyang transformer factory, Hefei transformer
factory, Hengyang transformer factory, Guangzhou power supply
bureau, Hunan electricity generating board, Chongqing transformers
factory and Wuhan steel. This system has the advantage of
operation reliable and easy to operate. It can meet the
needs of measurement. As one of the key items of the of
eight-five project, this electrical device has been widely
used for the spot test and research in the related unit
in the north, east, central and northwest parts of China.
The system has functions of hundred-percent process controlling
mode and menu prompt in Chinese character. It can access
and print arbitrarily. It can automatically generate survey
reports and display two-dimensional and three-dimensional
local discharge atlases. It is made by adopting the skin
window technique and has a good capacity of resisting disturbance.
It takes the techniques of two channel measurement and digital
difference technique which is able to measure the local
discharge signal of two samples or the two testing point
of one sample. That is convenient for analyzing the origin
of the local discharge signal. This product is the national
key scientific and technological project and the extension
project of the ministry of electric power. It has been tested
in hundreds of transformers such as the Gezhou Dam 500kV
switch station, Wuhan phoenix mountain 500kV transformer
substation and Shenyang transformer factory. It is reliable
and easy to operate.
It is specially applied for measuring the local discharge
of the eclectic devices such as the transformer, the electrical
motor, the mutual inductor, the capacitor, the cable, the
GIS, the switches and the lighting arrester. The performance
is complied with the standard of IEC-270 and GB7354. It
has the hundred-percent Chinese software and the menu mode
operation. The measurement and analysis of the local discharge
graph data can be arbitrarily accessed and printed. It has
two channels and can produce test report automatically.
It has many colorful display modes those are ellipse, straight
line, two-dimension and three-dimension.
Detection sensitivity: 0.5pC
Measuring frequency bandwidth: 1-200 kHz
Gain dynamic range: above 120dB
Sampling precision: 8 bit ±1/2LSB
The whole equipment also includes the mainframe, display
and print. (It’s not including the voltage part)
|
|
|
HRJFD
Type On-Site Digital Partial Discharge Detecting Analytic
System |
|
|
This system is
specially applied for the field and spot check work in the
electric equipment manufacturer, electricity generating
and supplying department, electrical power construction,
electrical installation and debugging construction enterprises.
It is very convenient for measuring and fixing the database
which is easy for further analysis and management.
Technical parameter:
Measuring channel: two channels
Detection sensitivity: 0.1PC
Measuring frequency range: 3dB bandwidth 10kHz~300 kHz
Cell-type filter setting stage:
Low end 10,20,40kHz
High end 100,200,300kHz
Gain dynamic range: 120dB
Synchronizing frequency: 50,100,150,200 or any Hz
Standard pulse generator: HRJFD-301
Full sized pulse voltage: 10V,5V,2V,1V,0.5V,0.2V (adjustable)
Calibration capacity: 50pF, 200pF (adjustable)
Working power supply: AC220V±10%,50Hz |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
★
HRJFD(现场)数字局部放电检测分析系统技术文档 |
|
|
|
|
|
|
|
|
HRJFD-2B数字局部放电检测系统Digital partial discharge detection system |
|
|
|
|
|
HRJFD-3B数字局部放电检测系统Digital partial discharge detection system |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|