ZGQ-11 Lightning Counter
General
The ZGQ-11 lightning counter is used to record the current amplitude of the lightning waveform. Applying the principle of current induction, it can record the lightning current with amplitude in the range of 0.3kA to 40kA and output a dry contact signal for users to connect to other equipment.
Operating Environment
| Item |
Specified Value |
| Power Supply |
DC 24 V ± 10 % |
| Temperature |
-40 ℃～+80 ℃ |
| Relative humidity |
5 %～95 % |
| Atmospheric pressure and altitude |
62 kPa～106 kPa，-500 m～4000 m |
Note: Installed outside the SPD, connected to the SPD conductor, and can only be used for indoor installation.
Product Configuration (Standard Configuration)
| Name |
Quantity |
Unit |
Remarks |
| ZGQ-11 Lightning counter |
1 |
PC |
|
| Lightning current sensor |
1 |
PC |
|
Performance Index
| Item |
Index |
| Amplitude measurement range |
Threshold current Itc (8/20μs) |
300 A |
| Maximum counting discharge current Imcw (8/20μs) |
40kA |
| Output signal function |
When the equipment detects a lightning strike, the dry contact signal changes from normally open to normally closed |
| Holding time of output count dry contact signal |
≥500ms |
| Power supply |
External power (DC 24V±10%) |
| Shell |
Flame-retardant V-0 level |
| Installation method |
Install the body on a standard 35mm rail, pass the ground wire through the inductor, fix it, and connect the inductor to the counter body. |
| System average power consumption |
≤ 1W |
| Protection level |
IP 40 |
Standards Complied
Q/75875187-9·7—2016 Lightning Monitoring System
IEC 62561-6-2018 Lightning protection system components (LPSC) - Part 6: Requirements for lightning strike counters (LSC)
Working Principle
The inductance probe is installed on the wire (generally the ground wire) through which the lightning current passes. When the lightning current comes, the inductance probe collects the lightning current signal and converts it into the voltage signal. After signal processing, the voltage signal is sent to the single-chip microcomputer. One record of lightning current is generated. The lightning current counting signal is transmitted to the user through the dry contact, and the signal holding time is ≥500ms.
Configuration
