MPD 500
Partial Discharge Measuring System for Routine Test Applications
Partial Discharge Measurement
The MPD 500 partial discharge measuring system has been specially designed for providing fast and reliable results in a highthroughput environment. As a new member of the successful OMICRON MPD family with hundreds of systems worldwide in daily use,
the MPD 500 is the ideal solution for state-of-the-art routine testing, clear pass / fail decisions and most easy reporting.
Reliable evaluation of insulating systems
PD – Partial Discharges are defined as localized electrical
discharge that only partially bridge the insulation between
conductors, often preceding an insulation breakdown.
Therefore PD measurements are well established and widely
accepted for quality assurance and factory testing of mediumand high-voltage assets.
Modern PD measurement systems based on apparent
charge [pC], in accordance with IEC 60270, reveals faulty spots in
electrical insulations with a high degree of sensitivity.
RIV – Radio Influence Voltage measurements express partial
discharge activities as a voltage that appears on conductors of
electric equipment. The RIV value is displayed in µV according to
CISPR 16-1-1 and the still referenced NEMA 107-1987.
The most convenient way to measure PD
As the newest member of OMICRON's successful
PD measurement family, the MPD 500 benefits from the
experience of hundreds of MPD units in daily use by major
cable-, transformer-, and rotating machine manufacturers
worldwide.
By incorporating a wide range of leading-edge technologies,
highly sensitive and accurate results can be obtained by the
MPD 500 as easily as operating a voltmeter.
The user-friendly software provides full remote control of
the measurement devices and delivers very easy automated
reporting of PD / RIV measurements. The MPD 500 also holds
simultaneous multi-channel abilities, without the need for a
multiplexer.
2
300 kV high voltage laboratory
PFIFFNER Instrument Transformers Ltd. / Switzerland
Single and
multi-channel view
Ellipse and
PRPD (ϕ-Q-n) screens
Results at one glance
Advantages of the intuitive MPD 500 software:
> Concise visualization of single as well as multi-channel
measurements
> User-friendly pass / fail functionality
> Detailed diagrams for in-depth analysis
For factory routine testing the conclusive pass / fail function is
ideal for fast decisions. Adjusting the thresholds is most easy, as
are the inception and extinction voltage.
Using the MPD's multi-channel ability allows to display multiple
actual PD measurement values simultaneously on one screen,
contrasting old-fashioned multiplexer solutions. This makes
the MPD 500 ideal for PD measurements in high-throughput
environments.
For advanced analysis classic ellipse and state-of-the-art
PRPD (ϕ-Q-n) visualizations show partial discharge activities in
real time at 25 frames per second.
Automate your reports
The optional comprehensive electronic reporting function
automatically provides a concise test protocol within seconds.
These reports contain information about the tested object, the
measurement, and all data in definable intervals, as well as
diagrams showing Q(t), U(t), and Q(U).
Individual screenshots can be inserted during measurement at
any time by simply hitting a hotkey.
Automated reports
Your benefits
> Economical – PD and RIV are combined within one
instrument
> Time effective, easy operation
> Decision support with clear pass / fail indication
> Efficient multi-channel testing with several results
displayed simultaneously
> Save time – Fast and easy automated reporting
3
Excellent Noise Suppression
C3’
C
1
C2’
C
2’
C
3’
There are many sources of interference which can complicate the measurement of partial discharges. The MPD 500 provides effective
features for reducing or eliminating the effect of these disturbances, making the measurements more reliable and accurate.
Advantages of fiber-optic communication
The whole MPD family utilizes the "point of PD measurement",
processing and digitizing in close proximity to the coupling
device as shown below. The digitized signal is transferred to
the operator's control room using optical communication. This
principle minimizes the effective ground loop and the influence
of external interferences resulting in a significantly reduced
background noise level.
Electromagnetic disturbances of nearby HV equipment have
no influence on optical fibers, therefore cable routing is fast
and easy, without special precautions. Safety comes first - the
fully galvanic isolation between "point of PD measurement" and
control room sets new standards of operational safety even
during a breakdown of the test object.
Very long fiber-optic connections may be used without
degrading the instrument's performance - The distance between
PD detection and operator could get up to 2 km / 1.2 miles.
Conventional PD detection
Coupling
capacitor
C2’
3’
C
C
1
C
2’
Coupling device
C3’
Device under test
Active noise suppression
The center frequency can comfortably be adjusted via slider from
0 MHz to 2.5 MHz. Together with three selectable bandwidths,
the MPD 500 can be tuned away from noise to a more "quiet"
frequency range, focusing optimally on the test object's
PD signals.
Simply use the mouse to enable an unlimited number of
phase amplitude gates for effective suppression of phase-fixed
disturbances.
Battery-powered portability
In addition to the advanced "point of measurement" principle,
even further circuit sensitivity can be realized by eliminating noise
from the mains that power the MPD 500. Every unit is supplied
with a battery attachment, that has the capability of powering
the system for up to 20 hours of continuous operation.
Interference
5 m ... 50 m / 16 ft ... 164 ft measurement cable
Point of PD
measurement
Ground loop
Innovative PD detection with the MPD 500
Coupling
capacitor
C2’
3’
C
C
C3’
Device under test
1
C
2’
Coupling device
~
0.3 m / 1 ft
Point of PD
measurement
4
4
up to 2
MPD 500
and MPP 600
km
Optical fiber
Routine factory testing
Routine PD measurements become easy with the integrated
pass / fail functionality. Set the MPD 500 to the desired PD
threshold level for the device under test. When this level is
exceeded, it is clearly displayed in the main window.
For further investigations the MPD 500 provides advanced
visualization and diagnosis tools such as ellipse and PRPD
(ϕ-Q-n), typically only found in expensive high-end
PD measurement systems.
Wide range of applications
Upgrade your testing facility to the latest technical benchmark
in partial discharge measurements. The MPD 500 is ideal for
examining PD faults in electrical insulations of transformers,
bushings, generators, motors, and other types of electrical
equipment in screened factory-routine-testing environments
and testing laboratories.
Adaptable to 19" format, the MPD 500 fills in for outdated
built-in instruments. This drop-in boosts control rooms to
state-of-the-art PD measuring abilities, with all benefits of a
contemporary PD system. Each replacement gets optimized
to the individual demands. Contact your OMICRON sales
representative for further details.
PD signals obscured in the noise band
PD signal with reduced noise level
Let the equipment grow with your needs
If necessary the MPD 500 can be upgraded to OMICRON's wellestablished high-end MPD 600 PD measurement and analysis
system at any time, even after several years in operation.
This makes the MPD 500 the only risk-free choice for PD
measurements, even if your demands grow.
Your benefits
> Increased sensitivity due to greatly reduced
background noise level
> Unrivaled operational safety with galvanic isolation
> Enhanced accuracy with progressive noise suppression
tools
> Save time – fast upgrading solution for old built-in
analog PD devices
> The only risk-free choice – upgradable to the most
advanced PD measurement system
5
Technical Data and Order Information
Coupling capacitors
VEHZ4116 MCC 205, 50 kV, 1.0 nF (on mobile base)
VEHZ4117 MCC 210, 100 kV, 1.0 nF (on mobile base)
1
2
2
High frequency current transformer
VEHZ4120 MCT 100 high frequency current transformer
Bushing adapters1 (incl. transport case)
VEHZ4121 Basic adapter: G3/4" inside to 5/8"
VEHZ4122 F&G/HSP adapter: M24 to G3/4"
VEHZ4123 HSP adapter: M30x1.5 to G3/4"
Measuring impedances
VEHZ4100 CPL 542, 0.5 A type
VEHZ4101 CPL 542, 2 A type
VEHZ4103 CPL 543, 5 A type
Li-poly battery
VEHZ4105 MPP 600 Power Pack Set (consisting of battery,
VEHZ4106 MPP 600 battery
fastener, and charger with power cord)
MPD 500 – Technical data
Center frequency range
Input freq. bandwidth
Input frequency range
Input impedance
Input voltage (max)
Dynamic range
PC requirements
Hardware
(minimum)
PC operating system Windows 2000 Pro™ to Windows 7™
Accuracy
PD event time resolution < 2 ns
Input channels PD level: ± 1 % of calibrated PD value
Environmental conditions / mechanical data / supply voltage
Humidity / temperature 5 % to 100 % non-condensing
Dimension (W x D x H) 110 x 190 x 44 mm / 4.3 x 7.5 x 1.7 in
0 Hz to 2.5 MHz
100 kHz, 300 kHz, 1 MHz
V input: 0 Hz to 2.1 kHz
PD input: 0 Hz to 2,5 MHz
V input: 1 MW, in parallel 1 µF
PD input: 50 W
V input: 60 V rms, PD input: 10 V rms
V input: 102 dB, PD input: 132 dB (overall)
®
Pentium
1 GB RAM / USB 2.0
Voltage: ± 0.05 % of calibrated voltage
Frequency: ± 1 ppm
0 °C to 55 °C (operating)
-10 °C to 70 °C (storage)
4 or later, Athlon® 64 or later /
1
Customized articles available on request
2
Including CPL measuring impedance
3
No calibrator included
Weight 600 g / 1.3 lbs
Power supply 8 to 12 V DC via ext. power supply or
MPP 600 Li-Poly battery
6
Packages
VE004500
VE004501
VE004502
Software upgrades
VESM4500
VESM4501
VESM4502
MPD 500 PD package:
- MPD 500 measuring system hardware
(consisting of MPD 500, MCU 502,
CPL 542 or 543, MPP 600 Power Pack Set,
BNC measurement cables, and fiber optical
communication cables)
- Transport case VEHP0044
- Software for PD measurements, plus manual
MPD 500 RIV package
3
:
- MPD 500 measuring system hardware
(same hardware as in PD package incl.
transport case)
- Software support for RIV measurements,
plus manual
Additional MPD 500 measuring channel
(consisting of MPD 500,
MPP 600 Power Pack Set, fiber optical
communication cables)
MPD 500 PD software upgrade
MPD 500 RIV software upgrade
MPD 500 report functionality
Fiber optical communication cables
1
VEHK4003 Length: 3 m / 10 ft
VEHK4001 Length: 20 m / 65 ft
VEHK4002 Length: 50 m / 165 ft (on cable drum)
Fiber optical bus control unit
VE004300 MCU 502 fiber optical bus controller
Charge calibrators
VE004200 Version A: 0.1 pC to 10 pC
VE004210 Version B: 1 pC to 100 pC
VE004220 Version C: 10 pC to 1000 pC
VE004230 Version D: 0.1 nC to 10 nC
VE004240 CAL 543 online charge calibrator
VE004241 Remote control (required for CAL 543)
Protection cases
VEHP0041 MPC 600 protection case
Upgrades
VE004503 Upgrade MPD 500 to MPD 600,
the most advanced PD measurement system
Transport cases
VEHP0043 For up to three MCT 100
VEHP0044 For complete MPD system
7
OMICRON is an international company serving the electrical
power industry with innovative testing and diagnostic solutions.
The application of OMICRON products allows users to assess
the condition of the primary and secondary equipment on their
systems with complete confidence. Services offered in the area of
consulting, commissioning, testing, diagnosis and training make the
product range complete.
Customers in more than 140 countries rely on the company’s ability
to supply leading edge technology of excellent quality. Service
centers on all continents provide a broad base of knowledge and
extraordinary customer support. All of this together with our strong
network of sales partners is what has made our company a market
leader in the electrical power industry.
The following publications provide further information on the solutions described in this
brochure:
MPD 600 Brochure
For a complete list of available literature please visit our website.
Americas
OMICRON electronics Corp. USA
3550 Willowbend Blvd
Houston, TX 77054, USA
Phone: +1 713 830-4660
+1 800-OMICRON
Fax: +1 713 830-4661
info@omicronusa.com
Asia-Pacific
OMICRON electronics Asia Limited
Suite 2006, 20/F, Tower 2
The Gateway, Harbour City
Kowloon, Hong Kong S.A.R.
Phone: +852 3767 5500
Fax: +852 3767 5400
info@asia.omicron.at
Europe, Middle East, Africa
OMICRON electronics GmbH
Oberes Ried 1
6833 Klaus, Austria
Phone: +43 5523 507-0
Fax: +43 5523 507-999
info@omicron.at
© OMICRON L2115, November 2012
Subject to change without notice
www.omicron.at • www.omicronusa.com
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