Megger MPQ1000 User manual

MPQ1000-UG-EN
Rev 1
Nov 2016
User Manual
Megger MPQ1000
PQ Analyzer
99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com

MPQ1000
PQ Analyzer

Copyright© 2016 by Megger. All rights reserved.
The information presented in this manual is believed to be adequate for the intended use of the product. If the
product or its individual instruments are used for purposes other than those specified herein, confirmation of
their validity and suitability must be obtained from Megger. Refer to the warranty information below.
Specifications are subject to change without notice.
WARRANTY
Products supplied by Megger are warranted against defects in material and workmanship for a period of one
year following shipment no other warranty. The warranty is void in the event of abuse (failure to follow
recommended operating procedures) or failure by the customer to perform specific maintenance as indicated in
this manual.

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Table of Contents
1 Introduction ....................................................................................................................................................................... 1
2 Receiving Information...................................................................................................................................................... 3
3 Overview of MPQ1000.................................................................................................................................................... 5
Definitions.......................................................................................................................................................................... 7
RMS Calculation: ........................................................................................................................................................ 10
Voltage and Current Waveform Data...................................................................................................................... 10
Rapid Voltage Changes: Under-Deviation Assessment and Over-Deviation Assessment: ............................ 11
Voltage Unbalance:..................................................................................................................................................... 11
Current Unbalance: .................................................................................................................................................... 12
Energy .......................................................................................................................................................................... 12
THD Measurement -.................................................................................................................................................. 13
Mains Signaling Voltage – IEC 61000-3-8.............................................................................................................. 13
IEC Flicker – See IEC 61000-4-15.......................................................................................................................... 13
4 MPQ1000 Specifications................................................................................................................................................ 15
5 Safety................................................................................................................................................................................. 17
Warnings and Safety Precautions.................................................................................................................................. 17
Safety Precautions ........................................................................................................................................................... 17
6 MPQ1000 Operation...................................................................................................................................................... 19
Connector Layout / Interconnect ................................................................................................................................ 19
Front Panel Keypad Operation..................................................................................................................................... 21
Menu Keys ....................................................................................................................................................................... 21
Menu Flow Charts........................................................................................................................................................... 21
DMM Mode..................................................................................................................................................................... 24
Scope Mode ..................................................................................................................................................................... 27
Configuring the MPQ Unit............................................................................................................................................ 29
Configure Date and Time format............................................................................................................................. 30
Configure unit preferences........................................................................................................................................ 32
Importing / Activating a Setup File ............................................................................................................................. 33
Uploading a Setup File from the PC ............................................................................................................................ 34
Uploading a Setup File from the USB stick ................................................................................................................ 34
Uploading a Setup File from the SD Card .................................................................................................................. 36
Activating the Imported Setup File .............................................................................................................................. 37
Renaming a Data or Setup File ..................................................................................................................................... 38
7 Installing the MPQ1000 Analyzer................................................................................................................................. 41
Battery............................................................................................................................................................................... 42
Battery Charging ......................................................................................................................................................... 42
Battery Storage............................................................................................................................................................ 42
Installation ................................................................................................................................................................... 42
Voltage and Current Connections ................................................................................................................................ 43

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8 WIRING DIAGRAMS for Demand Recording ....................................................................................................... 45
Floating Wye Neutral Measurement.........................................................................................................................57
Verify Active Setup File ................................................................................................................................................. 58
9 Starting and Stopping a Recording............................................................................................................................... 59
Verify the Input Connections ....................................................................................................................................... 59
Starting a Recording........................................................................................................................................................ 60
10 Downloading Data from the MPQ1000.................................................................................................................... 63
Transfer data to a PC via SD Card, Ethernet or USB Cable.................................................................................... 63
Transfer data to a USB Stick......................................................................................................................................... 63
11 Viewing Data on the MPQ PQ Analyzer.................................................................................................................. 65
Viewing an RMS Chart................................................................................................................................................... 66
Viewing a Unbalance Chart........................................................................................................................................... 68
Viewing a Power or Energy Chart................................................................................................................................ 70
Viewing a THD Chart.................................................................................................................................................... 72
Viewing a Frequency Chart ........................................................................................................................................... 74
Viewing a Harmonics / Inter-Harmonics Chart........................................................................................................ 76
Viewing a Flicker Chart.................................................................................................................................................. 78
Viewing an Event Chart................................................................................................................................................. 80
12 Unit Maintenance.......................................................................................................................................................... 83
Battery Replacement....................................................................................................................................................... 83
HELP Screen................................................................................................................................................................... 86
13 Spare Parts...................................................................................................................................................................... 87

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Introduction
Thank you for your purchase of the Megger MPQ1000 PQ Power Analyzer. Be assured
that your unit has been designed with emphasis on reliability, simplicity and ease of use.
It will provide you with the information you need to investigate customer power quality
complaints and compliance situations, verify billing, and pinpoint locations of high
demand and power consumption.
PURPOSE OF THIS MANUAL
This document is the operator manual for the Megger MPQ1000 PQ Power Analyzer. It
provides a description of the operation of the unit as well as installation and operating
instructions. Read this manual before installing or using the equipment. Special emphasis
should be placed on all safety discussions.
AUDIENCE
This manual is written for technical personnel who are familiar with the various
measurements performed by power analyzers and have a general understanding of their
use and operation. Such personnel should also be thoroughly familiar with the hazards
associated with the use of this equipment and should have received proper safety
training.

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Receiving Information
Contents of MPQ1000 Kit:
Qty Description
1 Power Quality Analyzer
1 SD Card
1 USB Communications cable
1 Ethernet Cable
1 AC Power Adapter
1 Set of Non-fused Voltage Leads
1 Carrying Case
1 USB Stick containing the Megger PQ Software &
manual
Current Clamps sold separately
When your Megger MPQ1000 Kit arrives, check the equipment received against the
packaging list to ensure that all materials are present. Notify Megger of any shortages.
Examine the contents for damage received during transit. If any damage is discovered,
file a claim with the carrier at once and notify Megger or it’s nearest authorized sales
representative, giving a detailed description of the damage.

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Overview of MPQ1000
The Megger MPQ1000 PQ Analyzer is a hand-held, eight-channel analyzer capable of
performing functions on four AC/DC voltages and four current inputs.
In addition to the Power Analyzer, your system includes the Power Quality Metrosoft®for
Windows, a user-friendly, menu driven software package that allows you to program the
unit within minutes. This is accomplished by creating a setup on a computer using Power
Quality Software and uploading it to the Megger MPQ1000 Power Quality Analyzer. Each
unit can store up to 90 user-defined setups. Should you need to change setups on site,
you may select any of your programmed setups using the Power Analyzer’s front panel
controls. Your programmed setup files may also be modified using the front panel of the
unit. The software package is also used to download recorded Power Analyzer data,
perform database searches, create reports and chart for analyzing the data and more.
Some of the Power Analyzer’s features include:
1 24VDC Power Supply Input, 90 to 264 VAC 50/60Hz.
2 Contains rechargeable battery backup
3 SD Memory Card
4 USB Memory Stick Support
5 Color VGA display
6 Simultaneously records power quality and power flow information
7 Measures power for single phase, split phase, and three phase systems using 1, 2, 2-1/2, and 3
element wattmeters
8 Samples at up to 1MHz measuring transients down to 1usec.
9 Perform harmonic analysis through the 50th harmonic
10 Displays real-time values and graphs and records them for downloading to a computer using
the PQ Software.
11 True RMS voltage, minimum RMS voltage, and maximum RMS voltage
12 True RMS current, minimum RMS current, and maximum RMS current
13 Watts, per phase pair and total system
14 Vars, per phase pair and total system
15 Voltamps, apparent power per phase and total system
16 True power factor (watts divided by voltamps)
17 Displacement power factor (cosine of the angle between the fundamental of voltage and
current)
18 Kilowatt hours, per phase and total system
19 Kilovar hours, per phase and total system

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Some of the Power Analyzer’s features include:
20 Kilovoltamp hours, per phase and total system
21 Harmonic direction from source or load
22 Harmonic magnitude and phase shift
23 Up to 1000 out-of-limits events, with time stamp and duration
24 Waveform capture using selectable triggers
25 Frequency Trending
26 IEC Flicker Trending
27 THD Trending
28 TDD Trending
29 Harmonic Trending
30 Inter-Harmonic Trending
31 Imbalance Trending
32 Rapid Voltage Change Measurement
33 Class A Compliance
34 CAT IV Rating
35 Optional GPS
Applications
The features of the MPQ1000 make the unit very versatile and capable of performing
various applications.
Some of the applications the MPQ1000 can perform are listed below.
Class A Compliance Testing
EN50160 Testing
Harmonic Studies
Rapid Voltage Change Analysis
Flicker Analysis
Imbalance Surveys
Reliability Studies
Troubleshooting
DC System Testing

Overview of MPQ1000
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Definitions
Class A A class of unit performance that complies with IEC standard 61000-4-30.
Clock Hour
Orientation
A setup feature in the PQ software that when selected will delay the start of
the recording until the real time clock in the PQ Device reaches a time interval
that is a multiple of the selected storage interval. This will keep each interval
from having fractional time stamps.
CT Full Scale The specified maximum RMS current range of the current clamp in use with
the PQ Analyzer
Data File An electronic file that contains the aggregated measurements of the PQ
Analyzer.
Default
Frequency
The user selectable frequency in the setup file that the PQ Analyzer defaults
to if the phase lock loop is lost.
EFT Extremely Fast Transient - Transients that have rise and fall times in the
nanosecond region.
Flicker An impression of unsteadiness of the visual sensation, induced by a light
stimulus with a luminance fluctuates over time.
GPS Time A time synchronization procedure applied periodically during a recording
using a GPS receiver.
Harmonics A sinusoidal component of a periodic wave or quantity having a frequency
that is an integral multiple of the fundamental frequency.
Hysteresis
A user selectable value that sets a buffer between the trigger level that starts
a sag or swell event and the trigger level that ends the event. This value is
displayed as a percentage of the user programmed limit.
Imbalance
The ratio of the negative sequence component of a voltage or current to the
positive sequence component of that voltage or current, typically expressed
as a percentage.
Inter-Harmonics A harmonic component of a periodic quantity that is not an integer
multiple of the fundamental frequency that the supply system is operating.
IP51
A measurement of environmental protections that states the ingress off dust
is not entirely prevented, but it will not enter in sufficient quantity to interfere
with the satisfactory operation of the equipment and dripping water (vertically
falling drops) shall have no harmful effect.
Phase Angle The delay between the zero crossing of the fundamental voltage signal and
the fundamental current signal represented in degrees.
Phase Lock Loop
A measurement control system that ensures the same number of samples are
used to analyze a given cycle regardless of the cycles period, within the
specifications of the unit.

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Post-Triggers
A user selectable value in the setup file that defines the number of cycles the
unit will record after a cycle has occurred that has exceeded the user
programmed event limits.
Power Factor The ratio of the total power input, in watts, to the total volt-ampere input to the
converter.
Pre-Triggers
A user selectable value in the setup file that defines the number of cycles the
unit will record before a cycle has occurred that has exceeded the user
programmed event limits.
Rapid Voltage
Change
A variation of the rms or peak value of a voltage between two consecutive
levels that is sustained for a given durations.
Ratio
A user selectable value in the setup file that defines a value that shall be used
to multiply the recorded voltage and / or current values. This feature is used
when recording secondary values of a PT or a CT and the operator wishes to
record and view the primary value.
Response
Interval
A user selectable value in the setup file that allows the user to define the
aggregation length of each RMS calculation. Programmed in cycles.
RMS Current
The Root Mean Square value of the current, derived from the summation of
the square root of the arithmetic mean (average) of the squares of the original
current samples.
RMS Voltage
The Root Mean Square value of the voltage, derived from the summation of
the square root of the arithmetic mean (average) of the squares of the original
voltage samples.
Sag An instantaneous or momentary decrease in the steady state RMS value.
Sample The actual discrete instantaneous measurement the MPQ1000 performs 128
times per cycle.
Scheduled Run A recording mode in the setup file that will allow the user to select a date and
time that the MPQ1000 will start recording.
Setup File An electronic file that contains the measurement configuration that shall be
used by the PQ Analyzer during its recording.
Storage Interval A selection in the MPQ1000 setup file that allows the user to determine how
often the unit wakes up from sleep mode and takes measurements.
Sub-cycle A power quality event in which the duration is less than a cycle.
Swell An instantaneous or momentary increase in the steady state RMS value.
TDD Total Demand Distortion is a measurement of the current THD taking into
account the average current load on the circuit during the recording interval.
THD
The ratio of the root-mean-square of the harmonic content to the root-mean-
square value of the fundamental quantity, expressed as a percent of the
fundamental.

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Transient A sudden non-power frequency change in the steady state condition of
voltage or current.
Vars
A unit which is the imaginary counterpart of the watt. The relationship
between a VAR and a watt in an alternating-current electrical system is
determined by the power factor.
Volt Amps A measurement of apparent power.
Watts A unit of energy equivalent to one joule per second.
Waveform
Capture
A selection in the MPQ1000 setup file that allows the unit to record sample by
sample data of each waveform for both Current and Electric Field. A
waveform will be captured once every storage interval. Note: This feature
must be enabled in order to calculate THD and Harmonics.

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Calculations
RMS Calculation:
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Voltage and Current Waveform Data
Waveform Sample = Binary Value * Slope*Cal offset
Calculation of a sliding reference voltage (First-order filter with a 1-min time constant)
Usr(n) = 0.9967 x Usr(n–1) + 0.0033 x U(10/12)rms
Where:
Usr(n)is the present value of the sliding reference voltage;
Usr(n–1) is the previous value of the sliding reference voltage; and
U(10/12)rms is the most recent 10/12-cycle r.m.s. value.

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Rapid Voltage Changes: Under-Deviation Assessment and Over-
Deviation Assessment:
Voltage Unbalance:
The negative sequence component u2 is evaluated by the following ratio, expressed as a
percentage :
For 3-phase systems, this can be written (with Uij fund = phase i to phase j fundamental
voltage):
The zero-sequence u0 component is evaluated by the magnitude of the following ratio,
expressed as a percentage:

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Current Unbalance:
Power:
Instantaneous Power (W) = V sample * I sample
Active Power (P) = V* I * cos θ
Reactive Power (VAR) = V* I * sin θ
Apparent Power (S) (VA) = S = VI
DPF = cos θ
Power Factor = Pf = TPF = P/S
Energy
KWH = KW / Number of Demand Intervals in an Hour
KVARH = KVAR / Number of Demand Intervals in an Hour
KVAH = KVA / Number of Demand Intervals in an Hour

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THD Measurement -
Where:
Q represents wither current or voltage
Q1 is the r.m.s. value of the fundamental component
h is the harmonic order
Qh is the r.m.s. value of the harmonic component of order h
H is 50 for the purpose of the compatibility levels in this standard
NOTE: THD takes account of harmonics only.
Mains Signaling Voltage:
Performed per IEC 61000-3-8
IEC Flicker:
Performed per IEC 61000-4-15

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MPQ1000 Specifications
SPECIFICATIONS REFERENCE 25ºC (77ºF)
Sampling Rate 1MHz
RMS Sampling Rate 256
RMS Aggregation 1 Cycle
Event Aggregation 1/2 Cycle
VOLTAGE
Voltage Input Channels 4
Voltage Range 0-1000V AC/DC
Voltage Accuracy 0.1% Udin over range of 10%-150% of Udin
Voltage Crest Factor 1.5 Max
CURRENT
Current Input Channels 4
Current Range 0-6000A (CT Dependent)
Current Accuracy 0.1% of full scale + CT
Current Crest Factor 4.0 Max
FREQUENCY
Fundamental Frequency 42.5-69Hz
Frequency Response DC to 50th Harmonic
Frequency Resolution 0.01Hz
Frequency Accuracy 0.01Hz at 60Hz
Transient Response 1µsec
DEMAND
KW Accuracy Voltage Accuracy * (Current Accuracy +CT)
KVAR Accuracy Voltage Accuracy * (Current Accuracy +CT)
KVA Accuracy Voltage Accuracy * (Current Accuracy +CT)
Phase Angle Error +/-1 Degree
FEATURES
Harmonics DC-50th per IEC 61000-4-7
Flicker IEC61000-4-15
Unbalance IEC61000-4-27