The main functions of the digital leakage current meter for lightning arresters are:
Automatic monitoring function
Periodic automatic monitoring of the full current, number of actions, and action time of the lightning arrester.
Wireless communication function
This function is mainly for the 4G wireless communication function of the lightning arrester monitoring device. Upload the characteristic data of the lightning arrester to the cloud platform through 4G communication, and complete the data upload every 4 hours.
Local display function
Using LCD display to show full current and number of actions.
Self powered function
The lightning arrester monitoring device has the function of supplying primary battery power to the lightning arrester.
alarm function
Equipped with abnormal alarm function, real-time alarm will be triggered when monitoring data exceeds the standard or monitoring function fails. The alarm settings can be modified, and the alarm information can be uploaded in real time.
Meter appearance
The device adopts a meter style appearance structure, which is consistent with the installation size of traditional lightning arrester monitors and can be directly replaced for installation.
1. Technical indicators for digital leakage current meter of lightning arrester:
Product Features |
Description |
Ambient Temperature |
-40℃~+70℃ |
relative humidity |
5%RH~95%RH |
atmospheric pressure |
80 kPa to 110 kPa |
contact method |
4G Cat.1 |
Applicable voltage level |
DC 1500V |
power frequency withstand voltage |
Not less than 4kV |
Residual pressure test |
Less than 3% of the residual voltage of the equipped lightning arrester, with a maximum not exceeding 3kV |
High current impulse withstand test |
100kA(4/10us) |
Square wave impulse current withstand test |
1200A |
Full current measurement range |
1uA~1mA |
Maximum allowable measurement error for full current |
± (standard reading * 5%+5uA) |
Full current measurement repeatability |
RSD<0.5% |
Number of lightning arrester actions |
0~999 |
Protection level |
IP67 |
Installation method |
Screw fixation |
weight |
3.6kg |
2. Electromagnetic compatibility performance
Testing Standard |
level |
criteria for judgment |
GB/T 17626.2 Electrostatic Discharge (ESD) |
Level 4 |
A/B |
GB/T 17626.3 Radio frequency electromagnetic field radiation |
Level 3 |
A |
GB/T 17626.8 Power Frequency Magnetic Field |
Level 5 |
A |
GB/T 17626.9 Pulse Magnetic Field |
Level 5 |
A |
GB/T 17626.10 Damping oscillating magnetic field |
Level 5 |
A |
GB/T 17626.11 Voltage sag |
Category 3 |
A/B |
GB/T 17626.4 Electrical Fast Transient Pulse Group |
Level 4 |
A/B |
GB/T 17626.5 Surge (Impact) |
Level 4 |
A/B |
GB/T 17626.6 Conducted disturbances induced by radio frequency fields |
Level 3 |
A |