Description: Monitoring system of medium voltage distribution networks up to 34.5 kV three-phase using intelligent low-cost current sensor.The equipment consists of a set of three sensor units and a concentrator unit called Remote. The Remote unit receives real-time data from each of the Sensors and sends them to the Power Concessionary's control center (COD).
Main features:
Sensor Unit Module
Current measurement in 3 bands: 1-100 A; 4-400 A; And 6-600 A
Burst current measurement: 1 kA, 4 kA and 6 kA, respectively
Supports up to 12 kA
Solar panel power and power backup with ultracapacitors with up to 36 hours
Low energy consumption
Processing system using 16-bit and 12 MIPS CISC microcontroller
Built-in memory using FRAM technology
Medium voltage working system (up to 34.5 kV)
Sensor to detect the presence of voltage in the cable and reverse current flow
RF system using low power 915 MHz radio
Installation on medium voltage cable
Sensor Weight: 1.4kg (full)
Remote Unit Module
Power system supplied by the grid or self-powered by specific photovoltaic module.
Automatic battery recharge control system
Lead-acid battery for 6-hour power backup with power supplied by power grid via photovoltaic module, it does not require power from distribution network, and thus the autonomy will be up to 5 days
RF system using low power radio
It automatically identifies and controls Sensors
It supports DNP V 3.0 protocol
Calculation of the unbalance current vector between the phases of the medium voltage
Measurement and calculation of current phasors up to 400A per phase of the three-phase system in medium voltage
