Megger PD ICMmonitor User manual

Power Diagnostix Systems GmbH ∙ Vaalser Strasse 250 ∙ D-52074 Aachen ∙ Phone [phone] ∙ Fax [phone] ∙ www.pdix.com
ICMmonitor
Partial Discharge Monitor
User Manual
Rev. e3.41

ICMmonitor Partial discharge monitor
Power Diagnostix Systems GmbH ∙ Vaalser Strasse 250 ∙ D-52074 Aachen ∙ Phone [phone] ∙ Fax [phone] ∙ www.pdix.com
Contents
IGeneral ............................................................................................................................................................. 1
I.1 About this manual................................................................................................................................... 1
I.2 Instrument safety .................................................................................................................................... 1
I.3 Battery module warnings........................................................................................................................ 2
II Introduction...................................................................................................................................................... 2
III Hardware .......................................................................................................................................................... 3
III.1 Models .................................................................................................................................................... 3
III.1.1 Rack mountable versions ......................................................................................................... 3
III.1.2 Enclosure for DIN rail mounting................................................................................................ 7
III.1.3 Explorer case ............................................................................................................................ 9
III.2 Cabinet.................................................................................................................................................. 10
III.3 Options.................................................................................................................................................. 11
III.4 Accessories .......................................................................................................................................... 13
III.5 Connections.......................................................................................................................................... 15
IV Operation........................................................................................................................................................ 17
IV.1 General ................................................................................................................................................. 17
IV.2 Main display modes.............................................................................................................................. 19
IV.2.1 Scope display.......................................................................................................................... 19
IV.2.2 Monitoring display ................................................................................................................... 20
IV.2.3 Projection display .................................................................................................................... 20
IV.2.4 Trending display...................................................................................................................... 21
IV.2.5 Spectrum display..................................................................................................................... 21
IV.3 Key menus............................................................................................................................................ 23
IV.3.1 Overview .................................................................................................................................23
IV.4 Optional key menus.............................................................................................................................. 43
IV.5 Calibration............................................................................................................................................. 47
IV.5.1 Calibration impulse generator.................................................................................................47
IV.5.2 Calibration menu..................................................................................................................... 49
IV.6 Noise reduction..................................................................................................................................... 51
IV.6.1 LLD noise ground (low-level discriminator) ............................................................................ 51

ICMmonitor Partial discharge monitor
Power Diagnostix Systems GmbH ∙ Vaalser Strasse 250 ∙ D-52074 Aachen ∙ Phone [phone] ∙ Fax [phone] ∙ www.pdix.com
IV.6.2 Window mask (software) ........................................................................................................ 52
IV.6.3 Gating with external sensor (analogue gating)....................................................................... 53
VApplication examples ................................................................................................................................... 55
V.1 Rotating machine monitoring................................................................................................................ 55
V.2 Transformer monitoring ........................................................................................................................ 57
V.2.1 Typical setup ........................................................................................................................... 57
V.2.2 Commissioning........................................................................................................................ 61
V.2.3 Operation.................................................................................................................................64
V.2.4 PD pattern examples .............................................................................................................. 65
VI The ICMmonitor software............................................................................................................................. 67
VI.1 Starting the program............................................................................................................................. 67
VI.2 Main functions....................................................................................................................................... 68
VI.2.1 Setup (F1, Ctrl+T) ................................................................................................................... 69
VI.2.2 Print (F2, Ctrl+P) ..................................................................................................................... 70
VI.2.3 NQS Trending (F3, Ctrl+N)..................................................................................................... 70
VI.2.4 Load (F4, Ctrl+L)..................................................................................................................... 70
VI.2.5 Save (F5, Ctrl+S) .................................................................................................................... 70
VI.2.6 Search / Offline (F6, Ctrl+E) ................................................................................................... 70
VI.2.7 Dial / Disconnect (F7, Ctrl+D) .................................................................................................71
VI.2.8 Start / Stop Auto-scan (F8, Ctrl+A)......................................................................................... 71
VI.2.9 Scan / Stop (F9, Ctrl+C) ......................................................................................................... 71
VI.2.10 Exit (F10, Ctrl+X)..................................................................................................................... 72
VI.3 Main menu ............................................................................................................................................ 72
VI.3.1 File menu.................................................................................................................................72
VI.3.2 Edit menu ................................................................................................................................ 73
VI.3.3 Measurement menu................................................................................................................ 81
VI.3.4 Options Menu.......................................................................................................................... 81
VI.3.5 Help menu............................................................................................................................... 83
VI.4 Auto-scan mode.................................................................................................................................... 84
VI.5 NQS trending analysis.......................................................................................................................... 87
VI.5.1 Button bar................................................................................................................................ 89
VI.5.2 Replay mode........................................................................................................................... 89

ICMmonitor Partial discharge monitor
Power Diagnostix Systems GmbH ∙ Vaalser Strasse 250 ∙ D-52074 Aachen ∙ Phone [phone] ∙ Fax [phone] ∙ www.pdix.com
VI.5.3 Loading via FTP ...................................................................................................................... 89
VI.5.4 Menu options........................................................................................................................... 91
VI.6 Pattern acquisition ................................................................................................................................ 93
VI.7 Spectrum analyser................................................................................................................................ 96
VI.8 Frequency spectrum calibration ........................................................................................................... 98
VI.8.1 Frequency spectrum calibration process.............................................................................. 101
VI.9 Optional software functions ................................................................................................................ 102
VI.9.1 ICMServer ............................................................................................................................. 102
VII MWS – Monitoring web server (optional)................................................................................................. 103
VII.1 Overview ............................................................................................................................................. 103
VII.2Signal flow........................................................................................................................................... 103
VII.3 Web interface...................................................................................................................................... 104
VII.3.1 Login und overview page...................................................................................................... 104
VII.3.2 Display................................................................................................................................... 106
VII.3.3 Pattern................................................................................................................................... 107
VII.3.4 Spectrum............................................................................................................................... 109
VII.3.5 AutoScan............................................................................................................................... 111
VII.3.6 Trending ................................................................................................................................ 112
VII.3.7 Alarm ..................................................................................................................................... 113
VII.3.8 Export .................................................................................................................................... 114
VII.3.9 Setups ................................................................................................................................... 118
VII.3.10 Calibration ............................................................................................................................. 125
VII.3.11 Manual calibration................................................................................................................. 126
VII.3.12 Automatic SPEC calibration.................................................................................................. 128
VII.3.13 Apply saved manual calibrations .......................................................................................... 131
VII.3.14 Apply saved automatic SPEC calibrations ........................................................................... 131
VII.3.15 Status (administrators only) .................................................................................................. 134
VII.3.16 User (administrators only)..................................................................................................... 135
VII.4 Rest API.............................................................................................................................................. 136
VII.4.1 Login...................................................................................................................................... 136
VII.4.2 Alarm ..................................................................................................................................... 136
VII.4.3 Exports .................................................................................................................................. 137

ICMmonitor Partial discharge monitor
Power Diagnostix Systems GmbH ∙ Vaalser Strasse 250 ∙ D-52074 Aachen ∙ Phone [phone] ∙ Fax [phone] ∙ www.pdix.com
Copyright 2023by Power Diagnostix. All rights reserved. No part of the content of this manual may be repro-
duced or transmitted in any form or by any other means without the written
permission of the publisher. Product
and company names herein may be the trademarks of their respective owners.
VIII FAQ (Troubleshooting)............................................................................................................................... 138
IX Miscellaneous.............................................................................................................................................. 143
IX.1 Maintenance ....................................................................................................................................... 143
IX.2 Product marks..................................................................................................................................... 143
IX.3 Shipment instructions ......................................................................................................................... 143
IX.3.1 Instrument ............................................................................................................................. 143
IX.3.2 Batteries ................................................................................................................................ 143
IX.4 Declaration of Conformity................................................................................................................... 144
IX.5 UK Declaration of Conformity............................................................................................................. 145
XTechnical data.............................................................................................................................................. 146
X.1 Main unit ............................................................................................................................................. 146
X.2 Cabinet................................................................................................................................................ 148
XI Annex............................................................................................................................................................ 149
XI.1 Connection of MUX OUT and AMP IN............................................................................................... 149
XI.2 National Instruments hardening guide ............................................................................................... 150
XI.2.1 Introduction............................................................................................................................ 150
XI.2.2 Step-by-step guide................................................................................................................ 150
XI.2.3 Service description................................................................................................................ 151
XI.3 Old enclosure models......................................................................................................................... 152
XI.3.1 Wall mounted instrument ...................................................................................................... 152
XI.3.2 Desktop enclosure ................................................................................................................ 154
XI.3.3 Outdoor cabinets................................................................................................................... 156
XI.4 Scale drawings ................................................................................................................................... 157
XII Index ............................................................................................................................................................. 165

ICMmonitor Partial discharge monitor
1
Power Diagnostix Systems GmbH ∙ Vaalser Strasse 250 ∙ D-52074 Aachen ∙ Phone [phone] ∙ Fax [phone] ∙ www.pdix.com
I General
I.1 About this manual
This manual describes the hardware, software,and usage of the ICMmonitor in its current version. Some of
the hardware features of the most recent versions are not available with earlier versions of the instrument. It
is possible to upgrade most of the previous instruments to the features of the current instruments. Please
contact Power Diagnostix for details.
Software updates are available through Power Diagnostix's web site (www.pdix.com). The access to the
download area of that web site is password protected and requires a valid software maintenance contract.
Contact Power Diagnostix for details. Current brochures and revisions of this manual are available for down-
load (PDF format) on that web site as well.
This manual describes the ICMmonitor including its miscellaneous functions. Some of these functions have
to be ordered separately and are marked as optional functions. For information regarding the accessories
and special applications of the ICMmonitor please contact Power Diagnostix.
I.2 Instrument safety
Before using the ICMmonitor, read the following safety information and this manual carefully. In particular,
read and follow the information, which is marked with the words 'Warning' and 'Caution'. The word 'Warning'
is reserved for conditions and actions that pose hazards to the user, while the word 'Caution' is reserved for
conditions and actions that may damage the instrument or its accessories, or that may lead to malfunction.
Always obey the safety rules given with the warnings and in this section. Make sure to take care of the safety
issues while performing field measurements. Never disregard safety considerations even under time con-
straints found often with on-line and off-line test on site.
Warning:
•Always provide solid grounding of the instrument and the coupling units. Never operate the
instrument without protective grounding.
•Use isolation techniques, such as isolation transformers or fibre optic isolation to avoid haz-
ard and injury. With applications bearing a high risk of electrical shock or breakdown use fi-
bre optic isolation in general.
•Avoid working alone.
•Do not allow the instrument to be used if it is damaged or its safety is impaired.
•Inspect the ground leads and signal cables for continuity.
•Select the proper coupling circuit and connection for your application.
•Do not use the instrument in an environment that is at risk of explosion.
!

ICMmonitor Partial discharge monitor
2
Power Diagnostix Systems GmbH ∙ Vaalser Strasse 250 ∙ D-52074 Aachen ∙ Phone [phone] ∙ Fax [phone] ∙ www.pdix.com
I.3 Battery module warnings
•This instrument may be provided with a battery module.
•Do not pierce, damage, disassemble, or modify the battery module. The battery module contains safety
and protection devices which, if tampered with, may cause the battery to generate heat, to rupture, or to
ignite.
•If a battery is suspected to be faulty, replace it with a Power Diagnostix approved battery module.
•If an instrument is suspected to contain a faulty battery module, the module must be removed before the
instrument is shipped.
•Do not ship a faulty battery module, either separately or connected to an instrument.
II Introduction
The ICMmonitor is a partial discharge analyser comprising a spectrum analyser, an acoustic detector, and a
conventional partial discharge (PD) monitor in one instrument. This combination enables PD measurements
even with a large background noise,e.g.,on power transformer within substations or power plants.
The ICMmonitor is an autonomous instrument, which can be used as stand-alone monitoring device. How-
ever, it is equipped with a serial computer interface for the download of trending data and remote access,
e.g.,by UMTS or LAN network (TCP/IP). The system can be adapted to utilise all commonly used types of
couplers and sensors. It offers a relay output to give a warning if a pre-set threshold level is exceeded.
The ICMmonitor is easy to use, where the user can choose between several display-modes of the integrated
LCD screen. All instrument settings including calibration are done via the optional functions on-screen men-
us or via software. These settings are automatically stored in a non-volatile memory when the system is shut
down.

ICMmonitor Partial discharge monitor
3
Power Diagnostix Systems GmbH ∙ Vaalser Strasse 250 ∙ D-52074 Aachen ∙ Phone [phone] ∙ Fax [phone] ∙ www.pdix.com
III Hardware
III.1 Models
III.1.1 Rack mountable versions
Figure
III.1: ⅔ 19-inch rack
Figure
III.2: Half 19-inch rack
Figure
III.3: Full 19-inch rack

ICMmonitor Partial discharge monitor
4
Power Diagnostix Systems GmbH ∙ Vaalser Strasse 250 ∙ D-52074 Aachen ∙ Phone [phone] ∙ Fax [phone] ∙ www.pdix.com
III.1.1.1 Front panel and external connections
Figure III.5 shows the front panel of the instrument as ⅔ 19-inch rack. The backlit liquid crystal display (LCD)
has a resolution of 240 x 128 pixels; the ten control buttons are arranged along the right-hand edge. The
brightness adjustment of the LCD is accessed using a small screwdriver, immediately beneath the control
buttons. A temperature deviation of the environment will be compensated by the device itself. For remote
control purposes a computer system can be connected via USB.
LAN: LAN Ethernet connector, RJ45, for connecting the ICMmonitor with external controlling systems.
USB: The USB terminal provides the connection to a PC for remote communications.
CH1 ... CH4: The input connectors of the 4-channel MUX can be connected to different PD sensors or cou-
pling units. The settings are changed in the menu SETUP3 / MUX.
Figure
III.5: Front panel of the ICMmonitor in a ⅔ 19-inch rack
Figure
III.4: Front panel of the ICMmonitor with IEC61850 option in a half 19-inch rack