Description
QEED Three-Phase Network Analyser
QE-Power-T Three Phase Network Analyzer
QE-Power-T is a compact three-phase AC network analyser in a 17.5 mm / 1 DIN module. It is designed for electrical panels where three-phase energy, power and network measurements need to be read through RS485 Modbus RTU and integrated into monitoring, datalogger, PLC, SCADA, EMS, BMS or IoT systems.
The analyser provides universal current transformer input support for 1A / 5A current transformers, 0...333mV CTs and Rogowski probes. It is available in STD, PLUS and PRO versions to cover basic metering, demand monitoring and power quality applications.
Module Width
17.5 mm / 1 DIN module
Current Inputs
1A / 5A CT, 0...333mV CT, Rogowski
Communication
RS485 Modbus RTU slave
Versions
STD, PLUS and PRO
Overview
QE-Power-T is suitable for applications where a compact three-phase analyser is needed but panel space is limited. The 1 DIN form factor makes it suitable for distribution boards, control panels, energy monitoring panels and machine panels.
The device measures three-phase electrical parameters using TRMS measurement and transmits values through RS485 Modbus RTU. A configurable digital output is available for alarm or pulse output applications, while front LED indication supports local status and alarm signalling.
Positioning: Compact 1 DIN three-phase network analyser for energy metering, Modbus monitoring, power quality visibility and universal current sensor integration.
Key Features
Universal Current Input
Supports 1A / 5A CTs, 0...333mV CTs and Rogowski probes for flexible panel integration.
TRMS Measurement
Measures distorted sine wave voltage and current values using true RMS measurement.
RS485 Modbus RTU
Reads electrical parameters through Modbus RTU for PLC, SCADA, EMS, BMS and IoT gateways.
Energy Metering
Supports active and reactive energy measurement, including bidirectional energy applications.
Digital Output
Configurable MOSFET digital output for alarms or pulse output functions.
Power Quality Versions
PLUS and PRO versions add demand, min / max / average values and power quality functions.
Meter Characteristics
| Characteristic |
Detail |
| Energy Accuracy Reference |
Equivalent to Class 0.5S for kWh according to EN62053-22 and Class 0.5S for kVARh according to EN62053-24 |
| Measurement Accuracy |
±0.5% RDG |
| Measurement Method |
TRMS measurement of distorted sine waves for voltage and current |
| Current Input |
Universal input for 1A / 5A CTs, 0...333mV CTs and Rogowski probes |
| Energy Metering |
Active, reactive and bidirectional energy measurement |
| Neutral Current |
Neutral current measurement supported |
| Digital Output |
1 configurable MOSFET digital output for alarms or pulse output |
| Serial Output |
RS485 Modbus RTU slave |
| Local Signalling |
Alarm and status signalling through front LEDs |
Available Measurements
| Measurement Group |
Available Values |
| Voltage |
RMS voltage, instantaneous peak, average and maximum values |
| Current |
RMS current, instantaneous peak, average and maximum values, including neutral current |
| Power |
Active power, reactive power and apparent power |
| Frequency |
Frequency, minimum and maximum values |
| Power Factor |
Total and per-phase power factor, inductive and capacitive |
| Energy |
kWh, bidirectional kWh positive / negative, active and reactive kVArh, total and per phase |
| Crest Factor |
Crest factor total and per phase |
| Power Quality |
THD, harmonics / interharmonics up to 63rd, sag, swell and voltage interruption depending on version |
Version Comparison
| Version |
Main Purpose |
Typical Functions |
| QE-Power-T STD |
Basic three-phase network analyser |
Voltage, current, power, energy, frequency, power factor and crest factor measurements |
| QE-Power-T PLUS |
Enhanced metering and demand monitoring |
STD functions plus THD, maximum demand, min / max / average values and phase sequence control |
| QE-Power-T PRO |
Power quality monitoring |
PLUS functions plus power quality functions, harmonic and interharmonic analysis up to 63rd, sag / swell and voltage interruption |
Technical Specifications
| Parameter |
Specification |
| Product Type |
Three-phase AC power / network analyser |
| Module Size |
17.5 mm / 1 DIN case |
| Current Input |
1A / 5A CT, 0...333mV CT and Rogowski probe |
| Communication |
RS485 Modbus RTU slave |
| Configuration |
Q-WIZARD software or Modbus RTU registers |
| Modbus Functions |
Function 03, 06 and 10 supported |
| Sampling Rate |
6400 Hz at 50 Hz |
| Baud Rate |
1200 to 115200 baud, standard 9600 |
| Absorption |
< 500 mW at 24 Vdc |
| Working Temperature |
-10°C to +60°C |
| Storage Temperature |
-20°C to +85°C |
| Relative Humidity |
10% to 90%, non-condensing |
| Altitude |
Up to 2000 m above sea level |
| Dimensions |
93 x 17.5 x 68.3 mm, without connectors |
| Weight |
Approx. 60g |
Configuration and Integration
QE-Power-T can be configured through Q-WIZARD software or directly through Modbus RTU registers. Address and baud rate can also be set using DIP switches depending on the configuration mode. The device communicates as a Modbus RTU slave through A+ and B- terminals.
- RS485 Modbus RTU slave for third-party master systems
- Q-WIZARD software for parameter configuration and real-time monitoring
- DIP switch setting for Modbus address and baud rate
- Optional T-BUS connection for power supply and Modbus RTU communication
- Suitable for datalogger, PLC, SCADA, EMS, BMS and industrial IoT platforms
Commissioning note: Correct configuration of CT type, CT ratio, voltage input and Modbus communication settings is important before connecting the analyser into a permanent monitoring system.
Typical Applications
Energy Monitoring Panels
Compact three-phase measurement for LV panels, distribution boards and sub-metering panels.
Power Quality Visibility
PLUS / PRO versions support harmonic, THD and network quality visibility depending on site needs.
SCADA / EMS / BMS
RS485 Modbus RTU communication allows integration with plant and building monitoring systems.
IoT Gateway Integration
Can be connected to RS485 IoT gateways for cloud monitoring and dashboard visualisation.
Retrofit Monitoring
Universal current input supports different sensor options for new and retrofit installations.
IoTWatt 4.0
Suitable as a field measurement device for IoTWatt 4.0 energy dashboards and analytics.
QEED QE-Power-T Supply and Integration
Saturn Pyro supports QEED QE-Power-T network analysers for three-phase energy monitoring, power quality visibility, RS485 Modbus integration, SCADA, EMS, BMS, IoT gateway and IoTWatt 4.0 projects in Malaysia.
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More detail about Saturn Pyro Sdn Bhd
Malaysia
