GE PQM-T20-C-A is a multi grid power quality meter, which is a product launched by ABB. This power quality meter features high-precision measurement, multi network support, easy configuration and use, and support for multiple communication protocols.

Specifically, PQM-T20-C-A adopts advanced measurement technology, which can accurately measure power quality parameters such as voltage, current, frequency, and power factor in the power system. It supports multiple network interfaces and can communicate with multiple control systems or devices to achieve data sharing and remote monitoring. In addition, PQM-T20-C-A also has a user-friendly human-machine interface, allowing users to easily configure and operate the instrument. In terms of communication protocols, it supports multiple communication protocols, such as Modbus, Profibus, etc., and can communicate with various different control systems and devices.

In addition to the above characteristics, PQM-T20-C-A may also have waveform analysis function for diagnosing waveform distortion or distortion problems in power systems. It can also monitor and record voltage drops (sags) and voltage peaks (swell), which are crucial for analyzing the stability and power quality issues of the power grid. In addition, the device includes programmable setpoints and four assignable output relays, allowing users to add control functions for specific applications, such as over/under current or voltage alarms, imbalance monitoring, and demand based load shedding and capacitor power factor correction control.

Overall, GE PQM-T20-C-A is a powerful multi grid power quality meter that can meet the needs of various industrial applications, especially in industrial environments with strict requirements for power quality.