Description
The GE Multilin PQMII-T20 (associated with order nomenclature CR193B110L0) is a high-accuracy digital power quality meter and system monitoring device engineered for continuous surveillance of three-phase electrical distributions.
In heavy industrial plants, utility substations, and commercial switchgear assemblies, this device handles multi-parameter electrical metering—including voltage, current, real and reactive power, frequency, power factor, and harmonic distortion. Plant electrical engineers utilize the PQM II platform for real-time tracking, event logging, and capturing voltage sags or swells via its integrated Voltage Disturbance Recorder (VDR). Maintenance teams must verify control power supply ratings and CT/PT secondary input configurations before integration into existing switchboard panels.
Technical Specifications
| Parameter | Value |
| Manufacturer | General Electric (GE Multilin) |
| Model / Series | PQM II (PQM-T20 variant) |
| Catalog / Order Reference | CR193B110L0 (Dependent on specific factory build and option configuration) |
| Measurement Parameters | Voltage (L-L, L-N), Current (phases and neutral), Real/Reactive/Apparent Power, Energy, Power Factor, Frequency |
| Control Power Supply | Standard: 90 to 300 V DC / 70 to 265 V AC (50/60 Hz); optional ranges available via modifications |
| Current Inputs | 1 A or 5 A secondary CT inputs (verify exact model option string) |
| Power Quality Features | Harmonic analysis (up to 63rd order), Voltage Disturbance Recorder (sag/swell logging) |
| Control & Outputs | 4 assignable output relays, 4 switch/status inputs, optional isolated analog outputs |
| Communication Protocols | Modbus RTU, DNP 3.0 via RS-485 (rear) and RS-232 (front panel) |
| Enclosure & Mounting | Semi-flush panel-mount industrial enclosure (IP20 rear terminals) |
Commercial & Availability Terms
- Condition: New Original / Factory Sealed or Certified Surplus. (Refurbished or tested surplus stock available periodically; verify exact unit lineage with our technical team).
- Availability: Stock levels vary based on regional industrial switchgear upgrade cycles and component lifecycle status. Contact us for real-time inventory counts.
- Lead Time: Typically 3 to 5 business days for stock items; verify factory lead times for unstocked variations or project-scale rollouts.
- Warranty: 12-month standard replacement warranty from the date of invoice.
- Pricing Note: Listed price is indicative, not final. Price subject to market conditions; contact us for a firm quote.
Engineering & Maintenance Notes
When replacing or retrofitting a PQMII-T20 unit in an active switchgear cubicle, technicians must follow standard electrical safety protocols, short-circuiting current transformer (CT) secondary circuits before disconnecting wiring harnesses. Verify that the control power voltage range matches the auxiliary supply present in the panel to prevent internal power supply damage.
Configuration profiles should be exported prior to unit swapping using EnerVista PQMII setup software. Ensure that communication addresses, baud rates, and Modbus map registers align with the plant SCADA or DCS master node to re-establish telemetry data links instantly upon commissioning.
Frequently Asked Questions
Q: Is the PQMII-T20 backward compatible with legacy PQM meter cutouts?
A: Physical panel cutout dimensions are generally consistent with older first-generation PQM meters, but wiring terminals and communication register maps should be verified against engineering drawings before installation.
Q: Does this meter support event recording for voltage sags and swells?
A: Yes. Equipped with the high-speed processing core, the T20 variant supports the Voltage Disturbance Recorder (VDR) functionality to timestamp and log power system anomalies.
Q: What software is used for local configuration and data polling?
A: The device communicates using standard configuration utilities such as GE’s EnerVista PQMII software suite via the front RS-232 port or rear RS-485 network line.
