Function Overview
● Ground fault point location and search function
The DC system ground fault finder measures the insulation condition of the equipment. When the insulation is damaged, the resistance drops to the specified level. When required, you can perform an insulation grounding search
to find the insulation damage and handle it accordingly.
System components: Insulation ground analyzer host
Clamp receiver
Basic principle: The signal generator reacts to the measured object and the ground fault current. A low-frequency voltage signal of 0.1Hz to 1000Hz is emitted from time to time to generate a leakage current at the fault point. The receiver receives the fault current and displays it on the LCD according to the size of the fault.
● Insulation test function
Can measure and record the insulation status of equipment
● Data management function
With microcomputer data processing, it can Describes the equipment status curve.
Dynamic tracking of the insulation status of equipment.
Features
● Integrate insulation testing and fault point finding.
● It also has a signal generator that can be set to multiple frequencies and multiple voltages to facilitate on-site testing.
● It is easy to use and can realize various functions without the equipment having a power outage, the cable being thrown away or the cable handle being untied.
● Personalized software (including instrument software and management system) can be customized according to customer requirements.
● Conduct test analysis, trend analysis and status tracking of insulation status.
● It not only has the function of measuring insulation resistance, but also has the function of measuring recovery voltage, absorption coefficient, etc. to accurately reflect the aging state of equipment insulation.
● The positioning signal frequency is low, only 1Hz, eliminating the illusion of capacitive grounding.
● The receiver has high accuracy and can accurately find faults.
● Various models of clamp-on receivers are available.
Technical indicators
Voltage measurement range
0.0V～1000V
Resistance measurement range:
0.1M ~100MΩ
Circuit leakage current detection sensitivity
>=1 mA
Measurement accuracy
Voltage test: 0.1～1000V ±1 %
Insulation resistance: 0.10MΩ～10.0MΩ ±5%
10.0MΩ～100MΩ ±10%
Minimum resolution:
Voltage: 0.1V
Insulation resistance: 0.01MΩ
Maximum test sensitivity
<=0.25 MΩ
The whole machine is 100% tested Sensitivity
<=10 kΩ
Signal output
DC 1000V±10%
DC 500V±10%
DC 250V±10%
Power consumption
Continuous operation for not less than 4 hours
Display screen
128*64 dots Matrix graphic LCD
Power frequency suppression
70db
Signal output
4～20mA
Storage capacity< /p>
32K*8bit SRAM
Operating temperature
-5℃～40℃
Operating humidity
80% R.H
Working power supply
10.8V lithium battery (special lithium battery charger)
Battery
Built-in 4200mAH 10.8V lithium battery< /p>
Volume
360*260*150mm