PFL40A-2000电缆故障定位系统 电缆故障测试定位仪Megger AVO

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MEGGER AVO电力电缆故障检测与诊断仪器仪表总揽

PFL40-2000
电缆故障定位系统

一、产品特点

  • 完整的,精密的全综合电缆故障定位系统
  • 集成了所有的主要故障定位技术
  • PFL40-1500为8/16/34KV,1500J的脉冲输出
  • PFL40-2000为8/16/34KV,2000J的脉冲输出
  • 仪器内集成有TDR
  • 轻便,移动方便
  • 符合IP54防尘、防水标准 

二、产品简介

      PFL40-1500/2000电缆故障定位系统为解决电缆故障提供了一个安全,有效和简单的方法,它能快速定位和隔离故障。在4,8,16和34KV电压量程下输出能量高达1500(可选2000)J。仪器提供了标准的耐压测试和烧穿功能,在34KV电压下提供了30mA和在4KV电压(可另外购4KV脉冲发生器)下提供了240mA的电流用于测试和判断电缆故障接地情况。仪器轻便,能用日常的运输工具就可以方便的装载和卸载,并且符合IP54防尘和防水标准。
 
三、测试方法:
TDR — 时域反射器能提供以下功能:
         菜单式操作
         可自定义标准电缆类型
         全脉冲反射模式
         瞬时分析模式
PFL —便携式故障定位系统提供以下功能:
        D.C. 测试
         故障击穿
         校验/烧穿
         ARM (弧反射方式)
故障预定位:
      ARM (弧反射方式)
      ICE (脉冲电流冲击法)
      电压衰退
        音频感应精定位
        接地安全互锁
 
DC 测试(0-40 kV DC)
      用高达40KV的测试电压和25mA的电流来诊断电缆的状态或定位电缆的故障状态。输出电压是可调整的,可以用5或10 KV的测试电压来测试电缆护套。操作者可以定义一个过电流跳闸电平,以保证被测试电缆不被击穿。

故障定位方法
      在确定故障类型后,就需要用以下的方法来对故障进行预定位:

  1. TDR(时域反射法)TDR进行故障预定位的方式有脉冲放射,弧放射,脉冲电流法和电压电压衰退法。
    在TDR法中,是在电缆结构上通过改变所产生的发射脉冲与反射脉冲的时间差记录在仪器
    的屏幕上,并且同特性图形相比较,或与同一条电缆上的健全相所取得的特性图形相比较。TDR是用于探测低阻故障、短路与断路故障最为有效的方法之一。这种方法还可以测量电缆的长度,也可以区分电缆的中间头、终端头等。TDR法测试时,向被测电缆输入一低压脉冲,该脉冲沿电缆传播到阻抗不匹配点,如短路点、断路点、中间接头等。
  2. ARM(冲击电压法)在ARM法中采用电压相同的高压脉冲设备,冲击电缆故障点,使故障点击穿放电,放电时产生的机械振动传到地面,产生操作人员可听到的“啪、啪”的锤击声,利用这种现象就可以十分方便、准确地判断电缆故障点的位置。但探测电缆故障往往需要多次放电才行,而多次反复冲击可能会给电缆绝缘好的部分带来损伤,尤其是当电缆的额定电压较低时,这种损伤显得特别突出,所以在选择电压的时候要特别注意。
  3. 音频感应精定位法
    在电缆发生短路接地的故障中,故障电阻小于l0n的低阻故障占有相当的比例。当电缆故障电阻较低时,故障点放电声音微弱,用冲击放电法进行定点比较困难,特别是金属性连接的短路接地,俗称“接地接死”的故障,根本无放电声音而无法定点。这时,应用音频感应法来进行精确定位。本仪器进行音频感应精定位需要额外配置PMM1001或者PMM1002。

四、技术参数
测试
DC测试: 0 – 40 kV 电流最大25 mA
分辨率: 1 mA
跳闸: 可调跳闸电平
电表: 电流和电压模拟和数字显示
TDR预定位
测试电缆范围: 60 m – 50 km
脉宽: 40, 80, 160, 320, 640 ns 1, 2, 5, 10 µs,
显示: 8 in., VGA屏幕, 彩色显示
Cursors: Dual independent
信号采集: 可选背数, x1, 2, 3, 4, 5, 10, 20, 50, 100
输入: 阻抗50 W
输入: 1 个脉冲放射, 1 电流脉冲/电压衰退
信号输出端口: 打印机/USB
软件: COMLink软件
高压脉冲定位
ARM: 8/16/34 kV (4 kV 可选)
ICE: 8/16/34 kV (4 kV 可选)
电压: 0 – 40 kV
电压击穿
ARM: 8/16/34 kV (4 kV 可选)
烧穿: 0 – 40 kV
0 – 4 kV, 240 mA (可选)
0 – 8 kV, 120 mA
0 – 16 kV, 60 mA
0 – 34 kV, 30 mA
故障精定位
冲击电压: 0 – 8/16/34 kV, (4 kV optional)
1500 J (2000 Joules 可选)
脉冲间隔 : 可调2 – 12 s
环境
操作温度: -20° to +50°C
存储温度: -20° to +70°C
海拔: 1500m
湿度: 50 to 95% RH  非凝固
供电电源: 100到 260 V (50 Hz)
IP等级:IP54
重量:149 kg
尺寸:965 mm H x 536 mm W x 503 mm D

PFL40A-2000
Portable cable fault location and high voltage test solution with high energy surge

  • Compact, portable fault locating systems with automatic switching
  • DC testing to 40 kV
  • Proof/burn up to 34 kV
  • 8/16/34 kV, 2000 Joules surge output
  • 4-kV range optional
  • A.R.M. (Arc Reflection Method)
  • Impulse current (current impulse)
  • Voltage decay (optional)
  • Integrated TDR

The prime objective of any cable fault location system is to provide quick, effective, accurate and safe fault location, thereby reducing system outages and “customer minutes lost.”

The new PFL40A family of compact Megger cable fault locating systems is designed to meet this criterion. These new systems are seen as a valuable extension to our existing range of CFL instruments and capabilities.

The standard system comes as a mobile compact system that can be further customised by the customer to meet local requirements. All systems offer the facility to undertake cable testing; cable and fault diagnosis; prelocation of cable faults; fault conditioning; pinpoint location using acoustic methods.

PFL40A-1500电缆故障定位系统 电缆故障测试定位仪Megger AVO电缆故障测试定位仪

更多信息,请点击查看:
MEGGER AVO电力电缆故障检测与诊断仪器仪表总揽

PFL40-1500
电缆故障定位系统

一、产品特点

  • 完整的,精密的全综合电缆故障定位系统
  • 集成了所有的主要故障定位技术
  • PFL40-1500为8/16/34KV,1500J的脉冲输出
  • PFL40-2000为8/16/34KV,2000J的脉冲输出
  • 仪器内集成有TDR
  • 轻便,移动方便
  • 符合IP54防尘、防水标准 

二、产品简介

      PFL40-1500/2000电缆故障定位系统为解决电缆故障提供了一个安全,有效和简单的方法,它能快速定位和隔离故障。在4,8,16和34KV电压量程下输出能量高达1500(可选2000)J。仪器提供了标准的耐压测试和烧穿功能,在34KV电压下提供了30mA和在4KV电压(可另外购4KV脉冲发生器)下提供了240mA的电流用于测试和判断电缆故障接地情况。仪器轻便,能用日常的运输工具就可以方便的装载和卸载,并且符合IP54防尘和防水标准。
 
三、测试方法:
TDR — 时域反射器能提供以下功能:
         菜单式操作
         可自定义标准电缆类型
         全脉冲反射模式
         瞬时分析模式
PFL —便携式故障定位系统提供以下功能:
        D.C. 测试
         故障击穿
         校验/烧穿
         ARM (弧反射方式)
故障预定位:
      ARM (弧反射方式)
      ICE (脉冲电流冲击法)
      电压衰退
        音频感应精定位
        接地安全互锁
 
DC 测试(0-40 kV DC)
      用高达40KV的测试电压和25mA的电流来诊断电缆的状态或定位电缆的故障状态。输出电压是可调整的,可以用5或10 KV的测试电压来测试电缆护套。操作者可以定义一个过电流跳闸电平,以保证被测试电缆不被击穿。

故障定位方法
      在确定故障类型后,就需要用以下的方法来对故障进行预定位:

  1. TDR(时域反射法)TDR进行故障预定位的方式有脉冲放射,弧放射,脉冲电流法和电压电压衰退法。
    在TDR法中,是在电缆结构上通过改变所产生的发射脉冲与反射脉冲的时间差记录在仪器
    的屏幕上,并且同特性图形相比较,或与同一条电缆上的健全相所取得的特性图形相比较。TDR是用于探测低阻故障、短路与断路故障最为有效的方法之一。这种方法还可以测量电缆的长度,也可以区分电缆的中间头、终端头等。TDR法测试时,向被测电缆输入一低压脉冲,该脉冲沿电缆传播到阻抗不匹配点,如短路点、断路点、中间接头等。
  2. ARM(冲击电压法)在ARM法中采用电压相同的高压脉冲设备,冲击电缆故障点,使故障点击穿放电,放电时产生的机械振动传到地面,产生操作人员可听到的“啪、啪”的锤击声,利用这种现象就可以十分方便、准确地判断电缆故障点的位置。但探测电缆故障往往需要多次放电才行,而多次反复冲击可能会给电缆绝缘好的部分带来损伤,尤其是当电缆的额定电压较低时,这种损伤显得特别突出,所以在选择电压的时候要特别注意。
  3. 音频感应精定位法
    在电缆发生短路接地的故障中,故障电阻小于l0n的低阻故障占有相当的比例。当电缆故障电阻较低时,故障点放电声音微弱,用冲击放电法进行定点比较困难,特别是金属性连接的短路接地,俗称“接地接死”的故障,根本无放电声音而无法定点。这时,应用音频感应法来进行精确定位。本仪器进行音频感应精定位需要额外配置PMM1001或者PMM1002。

四、技术参数
测试
DC测试: 0 – 40 kV 电流最大25 mA
分辨率: 1 mA
跳闸: 可调跳闸电平
电表: 电流和电压模拟和数字显示
TDR预定位
测试电缆范围: 60 m – 50 km
脉宽: 40, 80, 160, 320, 640 ns 1, 2, 5, 10 µs,
显示: 8 in., VGA屏幕, 彩色显示
Cursors: Dual independent
信号采集: 可选背数, x1, 2, 3, 4, 5, 10, 20, 50, 100
输入: 阻抗50 W
输入: 1 个脉冲放射, 1 电流脉冲/电压衰退
信号输出端口: 打印机/USB
软件: COMLink软件
高压脉冲定位
ARM: 8/16/34 kV (4 kV 可选)
ICE: 8/16/34 kV (4 kV 可选)
电压: 0 – 40 kV
电压击穿
ARM: 8/16/34 kV (4 kV 可选)
烧穿: 0 – 40 kV
0 – 4 kV, 240 mA (可选)
0 – 8 kV, 120 mA
0 – 16 kV, 60 mA
0 – 34 kV, 30 mA
故障精定位
冲击电压: 0 – 8/16/34 kV, (4 kV optional)
1500 J (2000 Joules 可选)
脉冲间隔 : 可调2 – 12 s
环境
操作温度: -20° to +50°C
存储温度: -20° to +70°C
海拔: 1500m
湿度: 50 to 95% RH  非凝固
供电电源: 100到 260 V (50 Hz)
IP等级:IP54
重量:149 kg
尺寸:965 mm H x 536 mm W x 503 mm D

PFL40A-1500
Portable cable fault location and high voltage test solution

  • Compact, portable fault locating systems with automatic switching
  • DC testing to 40 kV
  • Proof/burn up to 34 kV
  • 8/16/34 kV, 1500 Joules surge output
  • 4-kV range optional
  • A.R.M. (Arc Reflection Method)
  • Impulse current (current impulse)
  • Voltage decay (optional)
  • Integrated TDR

The prime objective of any cable fault location system is to provide quick, effective, accurate and safe fault location, thereby reducing system outages and “customer minutes lost.”

The new PFL40A family of compact Megger cable fault locating systems is designed to meet this criterion. These new systems are seen as a valuable extension to our existing range of CFL instruments and capabilities.

The standard system comes as a mobile compact system that can be further customised by the customer to meet local requirements. All systems offer the facility to undertake cable testing; cable and fault diagnosis; prelocation of cable faults; fault conditioning; pinpoint location using acoustic methods.

PFL20M1500 电缆故障定位系统 电缆故障测试定位仪Megger AVO

更多信息,请点击查看:
MEGGER AVO电力电缆故障检测与诊断仪器仪表总揽

PFL20M1500

电缆故障定位系统

一、产品特点

  • 完整的,精密的全综合电缆故障定位系统
  • 集成了所有的主要故障定位技术
           弧反射法
           脉冲电流法
           脉冲电压法
           校验/烧穿
  • 仪器内集成有MTDR
  • 仪器应用了全新的弧反射滤波器
  • 轻便,移动方便
  • 符合IP54防尘、防水标准

二、产品简介
      PFL20-1500电缆故障定位系统为解决电缆故障提供了一个安全,有效和简单的方法,它能快速定位和隔离故障。在16和20KV电压量程下输出能量高达1500J。仪器提供了标准的耐压测试和烧穿功能,在20KV电压下提供了60mA的电流用于测试和判断电缆故障接地情况。仪器轻便,能用日常的运输工具就可以方便的装载和卸载,并且符合IP54防尘和防水标准。
 
三、产品特征

–   多种技术结合减少故障定位时间,降低费用。
–   通过降低电缆的内应力可延长电缆的寿命。
–   仪器结构坚固能够经受长年的重负工作。
–   操作简单,降低培训时间和投资额。

仪器安全保护
PFL20M1500集成有如下安全保护:
–   零启动电压互锁
–   高压时会有灯亮来提示有高压存在
–   能自动放电
–   带输入过载保护电路
–   外置安全互锁
–   接地检测确保电缆和仪器和地有连接
MTDR 1 特性
—  自动选择量程
—  自动计算故障点的距离
—  多色彩轨迹追踪
—  数据直接输入
—  波速度用户自输入
 
四、技术参数

测试方法: 弧反射法,脉冲电流法,脉冲电压法,校验/烧穿
分辨率:1.5 m 
测试范围: 65 m — 22 km
显示: LCD显示
数据传输:通过USB 和 ComLink 软件连接
HV 模式
DC 电压: 0 – 20 kV
电流 : 0 – 60 mA
浪涌脉冲 :0 – 16 kV : 1536 J : 12 μF
脉冲间隔: 2 – 10 s 可选
弧反射滤波器/浪涌脉冲耦合器:0 – 16 kV
表头
模拟表

电压表: 0 到 20 kV
电流表: 0 到 60 mA
输入:50/60 Hz 220/240 V ac: 120 V ac, 50/60 Hz, 电池或50/60 Hz 12 V dc inverter
操作温度: -20 到 +50° C
存储温度: -30 到 55° C
海拔:2000 m
湿度: 5 到 95% RH 非冷凝
防护标准:IP54
尺寸:364 H x 406 W x 406 mm
重量:大约81kgs  (具体重量取决于配置)

PFL20M1500
PFL20M Power Cable Fault Locator System

  • New style MTDR is mounted in the lid for easier viewing with a large, bright screen
  • Inductive arc reflection filter delivers more energy where it’s needed
  • On-board inverter provides a choice of power options
  • Multiple fault locating techniques:
  • Arc Reflection Method
  • Time Domain Reflectometry (Pulse Echo)
  • Impulse Current
  • High Voltage Surge
  • Proof and Burn

The PFL20M1500 Power Fault Locator System is designed to meet power industry requirements for power cable fault location in underground residential distribution (URD) systems.

The instrument includes a set of outstanding new features including a simple-to-operate MTDR built into the lid and an inductive arc reflection filter to deliver more energy to the fault. An on-board inverter provides the user a choice of input power options.

The PFL20M1500 combines all the tools necessary to perform accurate cable fault location (including dc tester/burner, surge generator, radar coupling and TDR.)

PFL20A-1500电缆故障测试定位仪 Megger AVO

更多信息,请点击查看:
MEGGER AVO电力电缆故障检测与诊断仪器仪表总揽

PFL20A-1500
Portable cable fault location and high voltage test solution

  • 8/16 kV, 1500 Joules surge output
  • 2000 Joules surge output (optional)
  • 4-kV range optional
  • Arc Reflection 
  • Arc Reflection plus
  • Impulse current (current impulse)
  • Voltage decay (optional)
  • HV insulation testing to 20 kV
  • Proof/burn up to 20 kV

The prime objective of any cable fault location system is to provide quick, effective, accurate and safe fault location, thereby reducing system outages and “customer minutes lost.”

The PFL20A family of compact Megger cable fault locating systems is designed to meet this criterion. These systems
are seen as a valuable extension to our existing range of CFL instruments and capabilities.

The standard system comes as a mobile compact system
that can be further customised by the customer to meet local requirements. All systems undertake cable testing; cable and fault diagnosis; prelocation of cable faults; fault conditioning; pinpoint location using acoustic methods.

MTDR1电缆故障单相时域反射定位仪 Megger AVO

更多信息,请点击查看:
MEGGER AVO电力电缆故障检测与诊断仪器仪表总揽

MTDR1

电缆故障单相时域反射定位仪

一、产品特点

  • 多重故障定位法
  • 自动量程设置,自动故障距离显示模式
  • 单相、双通道发送-接收机
  • 与市面上多种 强力脉冲发生器/滤波器 相兼容

二、产品简介

       MTDR1利用脉波回声(pulse echo)、弧反射(arc reflection)、弧反射差(differential arc reflection) 或瞬态分析的方法(电压及电流)来做缆线故障的先期定位。本仪器可以独立使用或与Megger PFL系列产品配合使用。

      使用MTDR做故障预定位,可以减少先期定位点的数目,从而大幅地减少故障定位的时间。

      MTDR是快速找出电力电缆障的主要工具。它可以减少使用强力脉冲来查找电缆故障所花费时间并减少对电缆的损坏。

MTDR1
Single-phase Time Domain Reflectometer

  • Multiple fault locating methods
  • Auto-ranging and auto-fault distance modes
  • Single-phase, two-channel transceiver
  • Compatible with various surge generators/filters combo on the market

The MTDR1 is used for prelocating cable faults utilizing methods such as pulse echo, arc reflection, differential arc reflection or transient analysis, both voltage and current. The unit is available as a stand-alone, or can be integrated into the Megger PFL Auto series line of products.

Using the MTDR for prelocation significantly decreases fault locate times by reducing the number of surges required to prelocate, reducing the number of surges required to pinpoint.

The MTDR is your prime tool in the battle to quickly find your faults. It eliminates the time consuming and damaging process of repeatedly surging your cable in an effort to find faults

Impulse Generator Portable Megger AVO

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MEGGER AVO电力电缆故障检测与诊断仪器仪表总揽

IMPULSE GENERATOR
15-kV Portable Impulse Generator

  • 15-kV Portable Model
  • Dual-Voltage Model
  • Heavy-Duty Model

Impulse Generators are designed to locate faults in power cable by the high voltage impulse method, in which a high-voltage impulse is transmitted down the cable to cause the fault to arc. The arcing fault is then pinpointed using an appropriate impulse detector.

Impulse Generators may also be used to perform voltage versus time acceptance tests, or to burn faults that fail to break down under impulse to reduce their resistance. Megger offers four models to meet every application.

Impulse Generator Dual Voltage Megger AVO

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MEGGER AVO电力电缆故障检测与诊断仪器仪表总揽

IMPULSE GENERATOR
15-kV, Dual-voltage, Heavy-duty Impulse Generators

  • 15-kV Portable Model
  • Dual-Voltage Model
  • Heavy-Duty Model

Impulse Generators are designed to locate faults in power cable by the high voltage impulse method, in which a high-voltage impulse is transmitted down the cable to cause the fault to arc. The arcing fault is then pinpointed using an appropriate impulse detector.

Impulse Generators may also be used to perform voltage versus time acceptance tests, or to burn faults that fail to break down under impulse to reduce their resistance. Megger offers four models to meet every application.

ELECTROMAGNETIC IMPULSE DETECTOR Megger AVO

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MEGGER AVO电力电缆故障检测与诊断仪器仪表总揽

ELECTROMAGNETIC IMPULSE DETECTOR
Electromagnetic Impulse Detector

  • Indicates direction of fault
  • Works under all weather conditions
  • Survives rough handling and transport
  • Converts to voltage gradient tester with optional earth frame
  • Long-lasting 9-volt battery

The Electromagnetic Impulse Detector has been designed to localize faults on buried cable by detecting the magnitude and polarity of current established on a cable during surging with a surge generator.
The instrument is composed of an amplifier module, sheath coil, and carrying case. It is typically used on network systems to isolate a fault between manholes. An optional earth frame and surface coil are available.
The Electromagnetic Impulse Detector can be used with Megger PFL Systems or with surge generators of other manufacturers.

Arc Reflection Filter Megger AVO

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MEGGER AVO电力电缆故障检测与诊断仪器仪表总揽

Arc Reflection Filter
Standard Arc Reflection Filter and Heavy-Duty Arc Reflection Filter (detachable)

  • Choice of standard and heavy-duty models
  • Delivers highest energy levels to the fault, improving fault locating capability
  • Designed for safe, continuous operation with appropriate companion impulse generators
  • Designed for minimum trace distortion on companion time domain reflectometers

With Arc Reflection Filters, cable faults can be located on power cables rated at up to 35 kV. Relatively small systems, such as most direct buried underground residential distribution (URD) systems, are easily satisfied with the standard filter. Larger systems, including especially long direct buried distribution cable and especially complex circuits using lead-covered cable, require much more energy (such as is made possible using the heavy-duty filter).