Category: Industry Trends

Power Quality Health Index

(an Eaton exclusive)

Protect the integrity of your most critical systems with Eaton’s patented PQ

Health Index, which provides an intelligent read-out of circuit health based

on statistical analysis of power quality events and disturbances.

Bringing it all together

With 2-minute RMS, 120 cycle waveform, and +/- 0.1 ms event sequencing

recording, PXQ automatically categorizes sags and swells by severity, then

displays the totals on the industry standard ITIC plot. SEMI-F47 is supported

as well.

Enhanced Capture Module (PXQ-ENH)

• Detects and records high-speed voltage transients, which are short, high

-intensity surges that can cause equipment degradation. Transients can cause

costly disruptions and premature equipment failure

• Captures high-speed voltage transients as short as 100ns duration and up

to 10kV magnitude

• Provides detailed waveform data with 1 cycle (17ms)

COMTRADE at 167.000 samples per cycle

Expanded Input Module (PXQ-SER)

• Supports up to 40 digital inputs: 8 built-in, and up to 2 expansion modules

with 16 inputs each)

• Monitors and alerts on the statuses of breakers, UPS, generators, and more.

Meter integration of inputs simplifies switchgear design and root cause analysis

• High accuracy time stamps and historical recording help recreate timelines

around faults or disturbances for efficient root cause analysis

• Pulse counting converts inputs from other utility meters and provides an

integrated view of multiple utilities with a built-in WAGES dashboard

Unparalleled performance.

Unmatched potential.

PXQ not only enhances efficiency, accuracy, and visibility in root cause

analysis, but it does all these things within a system that was intentionally

designed to grow and adapt with the user. With PXQ, unmatched potential

meets unparalleled performance.

PXQ combines ANSI C12.20 Class 0.1 accuracy with stringent power quality

standards and context-driven visualizations, culminating in a modular system

that doesn’t only work better, but with seamless and intuitive functionality.

What’s included

With on-board analytics, remote system access, advanced cybersecurity,

and future-focused interactive functionality, PXQ was designed to simplify

and fine tune your root cause and data analysis processes, empowering

you to do your best work your way.

How it works

Power, performance, and productivity at-a-glance. PXQ streamlines analysis

and data management with on board analytics, interactive reporting, and

a proactive alert system.

Applications requiring 5A Current Transformer outputs require the

use of the CS005 Class 10 Current Sensor as an interposing sen

sor which reduces the input to the meter module to <10ma .  ANSI

C12 .20 class 0 .5% accuracies may be achieved using either the

Eaton CSXXX 10 mA or PXMP-CSXXX 100 mA current sensors and

direct voltage metering .  Interposing Potential and current transform

ers may introduce additional error .

The PXMP Meter supports a variety of current sensors .  Eaton offers

some sensors specially designed for use with our products .  We also

support the use of industry standard current sensors .  When specify

ing current sensors, in general, note that:

• Solid core sensors tend to have higher accuracy than split core

designs .

• Split core sensors are often installed in Retrofit applications where

it is not practical to disconnect the load conductors in order to

mount a solid core sensor .

• Current loop output sensors tend to have accuracy and noise

immunity advantages over 333 mV output sensors .

• 333 mV sensors are very useful since they eliminate open circuit

risks and are available in a wide range of primary current ratings .

• Eaton’s CS005 enables the PXMP Meter to interface to standard

5 A current transformers, either split core or solid core .

Ordering Information

The PXMP Meter system offers the flexibility to be used in a variety

of applications and can be customized, using the modular compo

nents, to fit most installations .  Table 1 lists the modular components

available for the PXMP Meter system

Metering Compatibility

Direct Mains Voltage Monitoring with the PXMP Meter is possible

up to a system maximum rating of:

• 480VL:G (corner grounded Delta)

• 347VL:N & 600VL:L maximum for Wye applications

• 480VL:G & L:L maximum on grounded Delta applications

Higher Voltage ratings or floating Delta applications will require the

use of interposing potential transformers to stay within the PXMP

maximum voltage ratings .

PXMP Load Current measurements are directly compatible with

current sensor (instrument transformers) outputs in three ranges of

secondary maximum outputs by using matching range PXMP Meter

Modules:

• 10 mA;

• 100 mA; or

• 333 mV .

Various meter modules can be mixed and matched in a single PXMP

Meter Base with support for split core sensors, solid core sensors,

or both based on the circuits that need to be metered .  In addition,

PXMP Pulse Input Modules (PXMP-PIMs) can be installed into a

PXMP Meter base for pulse metering from other electricity, gas,

water, air, or steam meters .

Output modules are available for either remote control over Modbus

or automatic control by the PXMP Meter based on customer config

ured threshold triggers .  A PXMP Energy Portal Module (PXMP-EPM)

is available that can make metered data available to individual ten

ants via an embedded WEB server .  The Energy Portal module also

supports a variety of protocols including Modbus TCP, SMTP, SNMP,

SFTP, HTTP, HTTPS, and more .  In addition to Ethernet, the Energy

Portal Module supports an optional dial up telephone connection for

interface with remote billing software .  A Touch Screen Display is

available for local display of metered data from any circuit .

Product Overview

The Eaton Power Xpert® Multi-Point Meter (PXMP Meter) offers a

highly modular approach to high density metering applications in

electrical power distribution equipment .  The PXMP Meter is com

patible with most 3-phase industrial, commercial, and single-phase

residential low voltage electrical power systems .  Typical applications

include feeder and branch circuit load monitoring found in switch and

panel boards, however higher level voltage metering is possible with

interposing load sensors and potential transformers .

The modularity of the PXMP Meter allows this metering system to

be customized to suit each metering installation based on the number

and type of circuits to be metered .  Up to 10 different PXMP Meter

Modules (PXMP-MMs) can be mixed and matched within a PXMP Meter

Base (PXMP-MB) to accommodate a total of up to 60 poles of metering

channels from a variety of 1. 2. and 3 pole loads .

Features & Benefits

• Automatic PQ Analysis captures harmonics, sags, swells, and

subcycle disturbance transients to protect mission-critical IT

equipment and infrastructure like motors, capacitor fuse banks,

transformers and conductors from damage.

• Minimize business interruptions by automatically diagnosing

disruptions to sensitive, mission-critical processes with Setpoint

Learning and pre-configured ITIC and SEMI-F47 triggers to get

started again as quickly as possible.

• Industry’s highest ANSI class accuracy, along with high-fidelity

512 or 1024 samples/cycle measurements on current, voltage,

power factor, and other comprehensive power metering param

eters such as harmonic distortion, flicker, crest factor, K-Factor,

and more.

• Circuit monitoring to improve the life of your infrastructure and

equipment investments: watching for harmonics, voltage tran

sients, and other potentially harmful power events.

• Circuit loading can be monitored with voltage and power levels,

power factor, energy usage, I/O status, and power quality

measurements, as well as harmonic plots, disturbance and tran

sient waveforms, and an ITIC disturbance summary screen.

• Power quality capture and analysis of multi-channel waveforms

and other information to support in-depth statistical analysis.

Applications

• Protect the integrity of your most important systems with Eaton’s

patented Power Quality Health Index, which provides an intelligent

read-out of circuit health based on statistical analysis of power

quality events and disturbances.

• Diagnose PQ problems with +/-0.1 ms sequence of events recording

that uses PTP for high precision time stamping. This is 10x better

than the industry benchmark.

• Multichannel dual plotting allows comparisons of current and

voltage channels at high resolutions to easily explore the effect of

large loads on your system with a clarity never seen before.

• Investigate power quality disturbances by severity, time or occurrence

with Event Analysis Calendar, graphical ITIC/SEMI-F47 analysis, and

sequenced events – part of the unique web based analysis suite available

on board PXQ.

Overview

Eaton’s Power Xpert Quality (PXQ) event analysis system is a

state-of-the-art power quality monitoring instrument designed

for power distribution assemblies like low and medium voltage

switchgear and switchboards. Compatible with industry power

quality standards (such as IEC 61000-4-30 Class A and IEEE

1453), this ANSI C12.20 Class 0.1 metering device offers advanced

analytics at the edge that simplify troubleshooting of power-quality

events. A highly modular approach provides maximum flexibility

to configure a metering system that can grow with the application

it is monitoring.