MQ21 Event Recorder. DIN Rail Power Quality Analyser
Solar Grid Connected PV Generation Systems. DIN Rail Mounting
This device acts as an Event Recorder to log Dips, Surges and other events. Event Recordings include Event type, Start time, Duration, Amplitude, Voltage RMS half value and Voltage waveform.
Application
Power Quality Analysis and Consumption.
Solar Grid-Connected PV Generation System, Consumption, Event Recorder and Multifunction Fault Recorder.
Features
Power Quality Analysis and Consumption.
MQ21 supports systems of single-phase and three-phase: it can measure multiple electrical parameters such as voltage, current, harmonic, energy, power factor and active power on the power grid of phase A, B, C and phase N.
Specifications
Supports systems of single-phase and three-phase.
Measures multiple electrical parameters voltage, current, harmonic, energy, power factor and active power on the power grid of phase A, B, C and phase N.
Connections
Two models are offered:
1. Type C which uses Standard CT s.
2. Type R which uses open ended Rogowski clip on coils (available in 3 sizes: 600Amp. 3000Amp and 6000Amp). These clip coils are very accurate (0.5% full scale) and extremely convenient as there is no disconnection of the main power supply, and often there is no need to do plant shut-downs.
Mounting
DIN Rail mounting
Equipment temperature
Note that even the equipment temperature can be monitored via three thermocouple inputs
(MQ-21 Pro).
Auxiliary supply
It requires power which can be obtained from the major loop between 90 and 526 volts AC.
Or from an optional external Lithium 18650 battery set charged from 230Vac.
Communication
Standard communication configurations such as of RJ45 and RS485 interfaces.
Standard Modbus TCP and Modbus RTU protocols. the MQ21 is compatible with various configuration systems and transmits the electrical parameters collected by the front end to a selected point in real time via Modbus.
Data can be stored onto a 16 G Micro SD card and downloaded by USB.
Optional: It can also be connected to the internet via optional MQ-21-4G Gateway.