I. Product Overview 
 The HDGC3860 machine owners to loop live earth fault records analyzer is used for dynamic testing and find the diesel locomotive, electric locomotive circuit live earth fault and live ground dynamic waveform recording and analyzing equipment. 

 Second, the typical application 
 ? Railway combustion, electric locomotive circuit live dynamic detection and fault point grounded to find. 
 ? Conditions of use: In the locomotive running. 
 ? Ambient temperature: -20-50 ° C 
 ? Power supply: motorcycle battery to take power, the instrument comes with battery 2 hours of emergency supply. 

 Third, the principle 
 Host modulation pulse signal, loop signal output line access machine owners. Two current sensors for a total of six groups, according to a certain phase, respectively installed in the six traction motor main circuit. Locomotive main loop to live a ground fault sensor connected to the DJ on the relay with the DJ action and the output trigger signal, the host will trigger a second group of sensors detect the signal waveform storage, analysis, looking for a ground loop ground loop waveform is displayed, at the same time the alarm. 
 Live to determine the ground loop, and then back on the road to install sensors were installed at both ends of the electrical components of the living ground fault circuit, When locomotive hair life again ground fault, the host acquisition, record each group a large sensing waveform data, by analyzing the signal waveform to accurately determine the components of the hair life ground fault. 

 Fourth, the device configuration 
 ? Host: a Taiwan 
 ? Sensors and signal cables: 
 ? Signal output line: 1 
 ? Trigger signal line: 1 
 ? Sensor splitter: 1 
 ? Power cord: 1 
 ? Power Adapter: 1 

 Five technical indicators 
 Item Specification 
 Live grounding resistance detection sensitivity of ≤ 10KΩ 
 Live earth fault response time ≥ 5ms 
 Live ground fault detection circuit number 7 Road 
 Be detected branch cable diameter range 32 to 38mm 
 Be detected slip maximum operating current DC1000A 
 Output circuit pressure DC1000V 
 Trigger threshold ≥ 30V 
 Power supply external the DC110V external power supply 
 Emergency power 14.4V/3500mAh lithium battery 
 Memory 128M 
 Dielectric strength 3000VAC/1min 
 Insulation resistance ≥ 4MΩ 
 Instrument power consumption of 15W 
 Operating ambient temperature -20 to 50 degrees Celsius 
 Relative humidity ≤ 85% RH