The Portable DC System Ground Fault Finder is a new DC System Ground Fault Finder that base on Frequency modulation amplitude modulation technology,with the fast FFT transform technology  introduce the Portable DC System Ground Fault Finder,it can detected in the case of the voltage level(48V,110V,220V) DC system insulation fault,DC into DC fault and  AC invasion fault.

As more and more high to the requirement of safe operation of power system,For all kinds of dc power system of troubleshooting requirements will be more and more high,so,Small signal, high precision, multiple frequency, insulation trend analysis will become a new generation of dc grounding power system on the basic requirement of troubleshooting instrument.

The portable DC system ground fault finder through the detailed analysis of the characteristics of the signal amplitude frequency balance the dc grounding fault look up security and sensitivity of contradictions, pushed the dc ground-fault technology to a new height, with wide application prospect.

The equipment is made up of System analyzer, branch of detector, high precision DC current clamp and AC current clamp.

The main present of main features

(1) Function of system grounding voltage measurement ,The instrument can measure the Positive system grounding voltage, negative grounding voltage, system voltage, The scope of  the measurement voltage is 0 to 300V.

(2) Function of system Insulation resistance measurement, The instrument can measure the Positive system grounding insulation resistance, negative grounding insulation resistance, The scope of the measurement insulation resistance is 0 to 999.9KΩ.

(3) Function of system equal capacitance to ground measurement,The scope of the measurement  is 0 to 999uF; 

(4) Function of testing the AC fleeing into DC, The instrument can decide fault of AC fleeing into DC, and can measure the AC invasion Voltage value, The scope of AC invasion voltage value is 0 to 240V.

(5) Function of Ring network detection and location,Instrument can detect all kinds of existing ring network fault in the two bus,Including the positive ring, the negative pole ring, the same polar ring and the different polar ring,And through the waveform and direction to realize the ring network fault point location.

(6) Device with amplitude modulation, frequency modulation, signal waveform selection function,It can realize high resistance ring network fault locating.

(7) Function of branch grounding fault Point Location .The instrument can achieve the function of branch grounding fault Point Location.

(8) Function of Signal spectrum analysis,Device through fast FFT transform realize current signal spectrum analysis,Effective extraction of measured signal frequency point amplitude.

(9) Function of ammeter, The instrument can used as a high-precision ammeter.

(10) Function of display the Squiggles. When using the detector detect the branch instrument fettle, LCD will display the branch current changes’ Squiggles, Facilitate users to achieve fast and accurate to detection the grounding.

1.analyzer main specifications

Using the environment

l Working power:DC40V--300V

l The environment temperature: -5℃～+50℃;

l Relative humidity: Less than or equal to 90%;

DC voltage measurement

l DC voltage measurement range:0--300V

l DC voltage measurement resolution:0.1V

l DC voltage measurement precision:0.5%

AC voltage measurement

l AC invasion voltage measurement range :0--240V

l AC invasion voltage measurement resolution:0.1V

l distinguish-ability precision :1%

Insulation resistance measurement

l Insulation resistance range:0--999.9KΩ

l Insulation resistance measurement resolution: 0.1KΩ

l Insulation resistance measurement precision:≤±5%

l System distributed capacitance measurement range：0--999uF

unbalanced bridge amplitude adjustable range:0mA,0.25mA,0.5mA,1mA,2mA

unbalanced bridge amplitude frequency range:0.125Hz,0.25Hz,0.5Hz,1.0Hz

unbalanced bridge waveform type selection:sinusoid wave and square wave

Work mode:force signal launch and auto signal launch

Display medium and resolution:TFT,320x240

2 detector main specifications

Insulation resistance measurement

l Insulation resistance range:0--500KΩ

l Insulation resistance measurement resolution: 0.1KΩ

l Insulation resistance measurement precision:≤±10%

Spectral analysis range

l Spectral analysis channel number:1

l Spectral analysis frequency range:0.125Hz--1Hz

l Frequency resolution:0.125Hz

Voltage wave display cycle:8s

Detects the feeder current range:-2A--+2A

Current measurement range:-50mA--+50mA

Display medium and resolution:TFT,320x240

3 wireless communication technology

l Transmission rate:2Mbps,Due to the air transmission time is short,Greatly reduce the collision phenomenon in the wireless transmission.

l Multi-frequency point:125,Meet the requirements of multi-point communication and frequency hopping communication.

l Sub-miniature:built-in 2.4GHz antenna.

l Low power dissipation:When work in answer mode communication,Fast air transmission and start time,Greatly reduces the current consumption

1.DC System Analyzer               1

2.DC Fault Detector                 1

3.DC clamp                              1

4.AC clamp                              1

5.AA  batteries                            4

6.Charger                                 1

7.Three core cable                   1

8.Instructions                              1

9.Certificate                             1

10.Warranty Card                    1

11.Suitcase                              1