PQMII-T20 Power Quality Monitor

Description

PQMII-T20 is a robust and durable power quality monitoring device designed for seamless integration with industrial control systems, PLCs, and SCADA platforms. Its main function is to continuously measure and analyze three-phase electrical parameters, including voltage, current, frequency, harmonics (up to 50th order), and power factor. This module communicates through industrial protocols such as Modbus TCP or Profibus to achieve real-time data transmission to the central control system for analysis.

PQMII-T20

It collects raw data through current transformer (CT) and voltage transformer (VT) interfaces and processes it into actionable indicators. PQMII-T20 supports triggering alarms when parameters exceed the range, which can be immediately notified via email or SCADA. Although it does not provide active control, its predictive analysis function helps determine the priority of maintenance tasks, such as identifying faults caused by transformer aging or load imbalance.

PQMII-T20

Technical specifications:
Model numberPQMII-T20
Brand GE
Type Three phase power quality monitoring instrument
Input voltage 100-600 VAC (single-phase/three-phase)
Working temperature range -40 ° C to+85 ° C
Installation method: DIN rail or panel installation
Interface/Bus Ethernet (Modbus TCP), RS-485 (Modbus RTU), Profibus DP
Compliance with IEC 61000-4-3, IEEE 519, CE, UL
Supports protocols Modbus, Profibus, DNP3

Contact Us
Phone:+86 16626708626
WeChat/WhatsApp:+86 16626708626
Email: 3772179818@qq.com

PQMII-T20

Main features and advantages:
Its high-precision measurement (voltage/current accuracy ± 0.5%) ensures accurate energy billing and compliance with regulatory standards such as IEEE 519 harmonic limits. By identifying inefficient issues such as reactive power loss or load imbalance, this monitor can help optimize energy use and potentially reduce utility costs by up to 15%.

The real-time alarm system of this module sends alerts to the team about critical issues such as voltage surges or frequency deviations before equipment failures, thereby minimizing downtime to the greatest extent possible. This proactive maintenance approach, combined with historical trend data, enables predictive strategies such as scheduling transformer replacement during planned downtime. In addition, its plug and play integration with existing SCADA systems reduces engineering costs and allows for rapid deployment without interrupting ongoing operations. For example, in a food processing plant, PQMII-T20 can detect harmonic emissions from motor drive deterioration, allowing for timely replacement and avoiding costly production interruptions.

PQMII-T20

Application areas:
PQMII-T20 performs well in industries where power quality directly affects productivity and safety:
Manufacturing and Robotics Technology: deployed in automotive factories to monitor the power supply of robot arms and CNC machines, ensuring stable operation and preventing expensive defects caused by voltage fluctuations.
Energy and Public Utilities: Used for substations and renewable energy power plants to analyze grid stability, harmonic distortion, and power factor correction, supporting compliance with grid regulations.
Data Center and Healthcare: Integrated into UPS systems and critical power paths, real-time detection of abnormal situations, protection of sensitive equipment from power outages, and ensuring regulatory compliance in a 24/7 environment.

PQMII-T20

Related products:
PQMII-T40: With 12 channel inputs, suitable for complex three-phase systems.
PQMII-T20-HD: Used for local parameter visualization.
PQMII-T10: Suitable for small applications.
PQMII-T20-R: Redundant power version, suitable for critical task settings.
PQMII-T20-EM: Enhanced EMI shielding, suitable for harsh industrial environments.
PQMII-T20 Solar: Optimized for solar inverters, with DC voltage monitoring capability.

PQMII-T20

Installation and maintenance:
Before installation, please verify the compatibility between CT/VT and the input range of the monitor, and ensure proper grounding to minimize EMI interference. Configure alarm thresholds based on the system’s tolerance level (e.g. voltage ± 5%) and establish a data recording plan for trend analysis. For multi monitor settings, please plan network segmentation to prioritize processing critical data streams.

Daily maintenance includes regular checks for corrosion or looseness in CT connections, as well as updating firmware to access the latest analysis functions. Use the built-in event log of the monitor to review historical disturbances, such as voltage dips during device startup, and adjust control strategies accordingly. In high dust environments, please clean the ventilation openings of the module every quarter to maintain optimal thermal performance.

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