Low voltage feeder monitoring device - power module
1.Product profile
The low-voltage feeder monitoring device consists of a communication unit, a power module, and a monitoring unit. The communication unit is generally installed in the distribution cabinet, column mounted JP cabinet, or low-voltage cable branch box. It serves as a data aggregation gateway to achieve upstream communication through carrier modules, communicate with downstream monitoring units through CAN bus, and achieve local maintenance of the system through Bluetooth interface. The number of monitoring units that can be connected is not less than 64; The power module provides DC power, CAN bus, and sampling voltage to the monitoring unit through a cascaded interface. A single power module can be connected to no less than 10 monitoring units; The monitoring unit is connected to an external current transformer to achieve current detection function, connected to the voltage sampling signal output by the power module to achieve voltage detection function, connected to a switch input to achieve station status monitoring, with functions such as topology characteristic signal transmission, characteristic signal analysis, and phase sequence recognition.
2.Product specifications
| performance parameters |
performance indicators |
| Wiring method |
Three-phase, four-wire |
| Sampling voltage |
Rated voltage |
AC220V |
| frequency range |
40~60Hz |
| Measuring range |
154V~264V |
| Operating power supply |
Rated voltage |
Power supply module AC 3*220V, allowable deviation -30%~+40%. |
| Providing a uniform DC12V±1V output to the monitoring unit, the |
| environmental conditions |
ambient temperature, humidity |
Temperature range: -40~+70°C |
| Maximum rate of temperature change: 1.0°C/min |
| Relative humidity: 10 to 100% |
| Maximum absolute humidity: 35g/m³ |
| the environment in which it is used |
free from explosive hazards, corrosive gases and conductive dust, the presence of severe mold, and sources of severe vibration and shock |
| storage temperature |
-40ºC~80ºC |
3.Selection specifications
| function module |
Serial number |
function point |
function point descriptions |
Power Modules |
| communication interface |
1 |
CAN communication |
Standard 2-channel CAN communication is used to cascade multiple power modules; support online upgrade program through CAN interface |
√ |
| Note: "√" indicates that this function is standard, "○" indicates that this function is optional |
4.Product installation and schematic diagram
5.About our service
* We could provide 7* 24-hour phone call after-sales service.
* We provide a 2-year guarantee time and will change the meter for you within 1 year if there's something wrong with the product. Except for natural disasters or man-made reasons.
* Recommend the most advanced application technology and management model in the industry to customers, and provide customers with detailed solutions.
6.Package and ship
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