China AC100-240V Power Supply Cable Fault Finding Techniques Test Equipment for Testing Location

Introduction
The RCI-700T Integrated Power Cable Fault Tester is an intelligent power cable fault tester.
It has integrated functions as:Fault locatingPin-pointingBasic route tracing
RCI-700T includes two main devices and the accessories
The function of the two devices:RCI-700TM Integrated Power Cable Fault TesterLow voltage impulse fault distance testingImpulse current fault distance testingAudio magnetic synchronous pin-pointingRoute tracingRCI-700TT Route Tracing Signal GeneratorTransmit signal for route tracing
Compared with the traditional single functional device, the RCI-700T is portable with small size and low weight. It is an upgrade device in locating area.
Design Features
Salient function:Full-featured:Low voltage impulse fault distance testingImpulse current fault distance testingAudio magnetic synchronous pin-pointingRoute tracing Fault distance locating:Low voltage impulse method: apply to the distance measurement of low resistance fault, short circuit and open circuit faultImpulse current method: apply to the distance measurement of high resistance fault, breakdown fault with current coupler for signal sampling. Pin-pointing:Audio and magnetic synchronously receiving with high anti-interference capability Audio and magnetic signal waveform displaying to distinguish the signal and noise easilyCursor test audio magnetic delay to display accurate fault point Route tracing while pinpointing according the initial polarity of magnetic waveform Route tracing:Signal generator:High capacity lithium-ion batteryFull-automatic power matching and protection High-power outputPeak and null method for route tracingSignal amplitude display80% method and 45% method for depth detecting Big LCD screen,4.3",320*240 SD card storage, easy to import to the computer High capacity lithium-ion battery matched with quick charger Power supply management to reduce the consumption. Auto power off in 15 min. without operation. Auto power off when low battery lever to protect the battery. Integrated design and small size, easy to carry.
Tech. Specifications

Fault distance locatingDistance measurement mode Low voltage impulse
Impulse currentSampling frequency 100MHzResolution Ratio Low voltage impulse:1m
Impulse current:4mVoltage of low voltage impulse 30VDistance measurement range 30kmBlind zone 2mMagnetic sound synchronization pin-pointing:Audio signal transmission band Mid-frequency 400Hz ,bandwidth 200Hz.Gain of signal channel 80dBAccuracy of pin-pointing 0.1mRoute tracing:(M)Receiving frequency 1kHz(M)Gain 80dBGenerator for route tracing:(T)Transmitting frequency 1kHz(T)Transmitting power ≥3.5WOutput Open circuit voltage≥100Vp-p
Short circuit voltage ≥300mA
Auto matching according the actual loading
Auto short circuit protectionPower supply:Battery built-in Li-ion battery pack, nominal voltage 7.4V,Capacity 3000mAHPower consumption RCI-700TM 400mA ,RCI-700TT 500mACharger Input AC100-240V, 50/60Hz; output 8.4V, DC 1ACharge time <4 hoursDisplayMain unit 1200M 320*240 LCDGenerator MeterOtherVolume 270*220*80mm M/TWeight 1.5kg M/TWorking conditionTem. -10ºC-40ºCHumidity 5-90%RHElevation <4500m

Basic operation
Basic steps:Fault judgmentFault distance testingRoute tracingPin-pointingFault judgment and test method chosenWhen cable fault appeared, first determine the fault character as below:Test the phase to phase and phase-earth insulation resistance of one end of the cable by megger. If the result is zero, please use the multimeter to test the resistance.If the insulation resistance is very high but insulation is normal, please check whether open circuit fault exist. Here user can make three phases short circuit to the earth and test on the other end to distinguish.Fault character distinguish and test method form

NoFaultFault formDistance test methodPin-pointing method1
Low resistance
Megger:0
Multimeter:< 200Ω
Low voltage impulse
Audio-frequency(optional)Audio magnetic synchronous2Open circuitConductor disconnectionAudio magnetic synchronous3High resistanceMegger:>0
Or:
Megger:0
Multimeter:≥ 200Ω
Impulse current
4BreakdownMegger:insulation normal
Withstand voltage test:no

Remark: The gray part in the form means that, for these functions, extra matched high voltage generator is needed.Audio-frequency method to pinpoint the low resistance is optional. This need the matched CD-1200T route tracing signal generator.

Device introduction
1. Main unit and accessories
RCI-700TM Integrated power cable fault testerFunction and accessories:Low voltage impulse distance testing accessories: Low voltage impulse test line
Impulse current distance testing accessories: Impulse current coupler
Audio magnetic synchronous pin-pointing accessories: Pin-pointing sensor, earphone
Route tracing accessories: route sensor, earphone
RCI-700TT route tracing signal generatorSignal generator for route tracing. Accessories: output line, earth stake Charger for RCI-700TT/M

Company introduction
Certificate:

Contact:
Grewin.Beyond
Tianjin Grewin Technology Co.,Ltd.
Web:www.grewin-tech.com