EA Technology UltraTEV Plus2 User manual

UltraTEV Plus2 Operating Manual
Product Code: UTP2
Version: 5
Date: October 2016

EA Technology UltraTEV Plus2Operating Manual 2388L015
Contents
FCC Warning Statement...........................................................................................................................................................1
IC Warning Statement ...............................................................................................................................................................1
1. What does the UltraTEV Plus² do?......................................................................................................................2
2. What’s in the Box?........................................................................................................................................................3
3. Important Information ..............................................................................................................................................4
4. Non-Intrusive Detection of Partial Discharge Activity...........................................................................5
4.1 What is Partial Discharge? ................................................................................................. 5
4.2 How can Partial Discharge be detected? .......................................................................... 5
4.3 Airborne Ultrasonic Discharge Activity ............................................................................ 5
4.4 Electromagnetic Discharge Activity .................................................................................. 6
4.5 Cable Partial Discharge Activity ........................................................................................ 6
5. Using the UltraTEV Plus²..........................................................................................................................................7
5.1Charging the UltraTEV Plus2.............................................................................................. 8
5.2 Turning the UltraTEV Plus² On/Off................................................................................... 8
5.3 Notification Bar .................................................................................................................. 9
5.3.1 Temperature & Humidity ..................................................................................... 10
5.4 Menu Bar........................................................................................................................... 10
5.5 Main Menu........................................................................................................................ 11
5.6 TEV/Cable PD Menu......................................................................................................... 12
5.6.1 Measure Screen .................................................................................................... 13
5.6.2 Phase Plot ............................................................................................................. 14
5.6.3 Waveform.............................................................................................................. 15
5.6.4 Histogram ............................................................................................................. 16
5.6.5 Interpretation ....................................................................................................... 17
5.6.6 Noise Detection.................................................................................................... 19
5.7 Ultrasonic Screen ............................................................................................................. 20
5.7.1 Ultrasonic classification....................................................................................... 21
5.8 Context Menu................................................................................................................... 22
5.8.1 Audio output ........................................................................................................ 22
5.8.2 Filters .................................................................................................................... 23
5.8.3 Phase Reference ................................................................................................... 23
5.9 Settings Screen................................................................................................................. 25
5.9.1 System Settings.................................................................................................... 25
5.9.2 Measurement Settings ......................................................................................... 27
5.9.3 Network Settings.................................................................................................. 28
5.9.4 About .................................................................................................................... 29
5.9.5 In-field Firmware Upgrade ................................................................................... 29
5.9.6 Reset All Settings ................................................................................................. 31
5.10 File Browser ...................................................................................................................... 32
5.11 Screenshot........................................................................................................................ 33
5.12 Function Check ................................................................................................................ 34
6. Survey............................................................................................................................................................................... 35
6.1 Starting a Survey .............................................................................................................. 35
6.2 Ad-hoc Measurement....................................................................................................... 36
6.3 Survey Metadata Forms ................................................................................................... 36
6.4Using Populated Lists ...................................................................................................... 38

EA Technology UltraTEV Plus2Operating Manual 2388L015
6.5 Using the virtual keyboard.............................................................................................. 39
6.6 Background Measurements............................................................................................. 40
6.7 Recording Data ................................................................................................................ 41
6.7.1 TEV recorded data................................................................................................ 41
6.7.2 Cable PD recorded data....................................................................................... 41
6.7.3 Ultrasonic recorded data ..................................................................................... 41
6.8 Viewing Survey Progress ................................................................................................. 42
6.9 Completing a Survey........................................................................................................ 42
7. Reviewing Results..................................................................................................................................................... 43
7.1 Wi-Fi & USB Connection ................................................................................................... 43
7.2 MicroSD Card & Data Zip Files ........................................................................................ 43
7.3 Data Analysis Screens...................................................................................................... 44
7.3.1 TEV & Cable PD Analysis Screen ......................................................................... 45
7.3.2 Ultrasonic Analysis............................................................................................... 46
8. Detecting Partial Discharge using the UltraTEV Plus² ........................................................................ 47
8.1 TEV Measurement ............................................................................................................ 47
8.1.1 Background Noise ................................................................................................ 47
8.1.2 Measuring TEV ..................................................................................................... 48
8.2 Cable PD Measurement ................................................................................................... 49
8.2.1 Practical RFCT Connection Requirements .......................................................... 49
8.2.2 Measuring PD in cables ....................................................................................... 49
8.3 Ultrasonic Measurement ................................................................................................. 50
8.3.1 Measuring Ultrasonic ........................................................................................... 50
8.3.2 Measuring Ultrasonic with the UltraDish Accessory.......................................... 50
8.3.3 Measuring Ultrasonic using the Flexi Probe sensor Accessory ........................ 52
8.3.4 Ultrasonic Measurement using the Contact Probe Accessory .......................... 53
8.3.5 Using the Ultrasonic Contact Probe.................................................................... 54
8.3.6 Detection, Measurement and Localisation of the Partial Discharge ................ 55
8.3.7 Mounting Practices .............................................................................................. 55
8.3.8 Sources of Noise and Phantom Signals .............................................................. 57
9. UltraTEV Plus² Specification ............................................................................................................................... 58
TEV Measurements .......................................................................................................... 58
Ultrasonic Measurements................................................................................................ 58
Cable PD Measurements.................................................................................................. 58
Hardware .......................................................................................................................... 59
Environmental .................................................................................................................. 59
Dimensions ...................................................................................................................... 59
Power Supplies ................................................................................................................. 59
Battery Charger ................................................................................................................ 60
10. Declaration of Conformity ................................................................................................................................... 61
11. Maintenance ................................................................................................................................................................. 62
12. Warranty Policy........................................................................................................................................................... 62
13. Calibration..................................................................................................................................................................... 63
14. Repair ............................................................................................................................................................................... 63
15. Waste Electrical and Electronic Equipment Directive (WEEE).......................................................... 63
16. Continuous Improvement .................................................................................................................................... 63
17. Contact Us ..................................................................................................................................................................... 64
18. Record of Changes ................................................................................................................................................... 65

EA Technology UltraTEV Plus2Operating Manual 2388L015

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FCC Warning Statement
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that
may cause undesired operation.
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. End users must follow the specific operating instructions for
satisfying RF exposure compliance. This transmitter must not be co-located or operating
in conjunction with any other antenna or transmitter.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment
IC Warning Statement
Under Industry Canada regulations, this radio transmitter may only operate using an
antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry
Canada.
To reduce potential radio interference to other users, the antenna type and its gain
should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more
than that necessary for successful communication.
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is
subject to the following two conditions: (1) this device may not cause interference, and (2)
this device must accept any interference, including interference that may cause undesired
operation of the device.

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1. What does the UltraTEV Plus² do?
The UltraTEV Plus² is a versatile hand-held tool used to easily detect and classify Partial
Discharge (PD) in a wide range of electrical equipment.
The UltraTEV Plus² uses inbuilt TEV and Ultrasonic sensors and external accessories to
detect the presence of potentially damaging PD in switchgear, cables and overhead line
equipment.
The UltraTEV Plus² brings together three complementary sensor modes in a single hand
held instrument by regularly checking switchgear while it’s in service using the UltraTEV
Plus2, failure risks can be identified and action taken to avoid faults and downtime.
Algorithms and analysis capability built in to the UltraTEV Plus² provide vital insight,
classifying what you find to support the decisions you make and deliver the outcomes you
need. It’s never been simpler to interpret what you’re seeing and choose a course of action.
The UltraTEV Plus² records measurements at the touch of a button. Internal storage can be
used to provide access to historical data while you’re out in the field. Capturing what you’ve
measured allows you to see trends in the performance of your network.

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2. What’s in the Box?
Part
Kit 1
Kit 2
Kit 3
Kit 2
Upgrade
Kit 3
Upgrade
UltraTEV Plus2
Mains
Charger
Car Charger
USB Lead
8GB MicroSD
& SD adapter
Neckband
Headphones
Ultrasonic
Contact Probe
Flexible
Microphone
Sensor
UltraDish
RFCT & Cable
Temperature
& Humidity
Sensor
Tough Carry
Case
X (T-Loc II)
X (T-Loc II)
X (T-Loc IV)
X (T-Loc II)
X (T-Loc IV)
For Spares and Accessories
For spares and accessories, please contact your local sales representative
or [e-mail]

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3. Important Information
The UltraTEV Plus2is designed for use at ground potential only.
When testing electrical plant ensure that the metalwork is earthed
before taking any measurements.
Maintain safety clearances between structures at high voltage and
the instrument, its probes and the operator at all times.
RFCTs, connecting leads and test equipment do not provide
protection against high voltage.
Under no circumstances are earth/ground connections to be
loosened, disconnected or otherwise altered to allow use of this
equipment.
Adhere strictly to local safety procedures.
Do not make measurements when there are electrical storms in the
vicinity.
Do not make measurements immediately following the energisation
of a circuit.
Do not disturb plant during measurements either mechanically (e.g.
by shaking or striking it), electrically (e.g. by increasing the voltage)
or physically (e.g. by applying heat).
Do not operate the instrument or its accessories in an explosive
atmosphere.
Mains supply voltages are present within the battery charger.
This unit contains no user serviceable parts, always return to EA
Technology or your local distributor for service and repair.
Care must be taken where work is performed in tight corners, where
the proximity of other earth planes will affect the reading. If
possible maintain a distance of more than 30cm from metal work
which runs perpendicular to the sensor faceplate.
For application information please contact:
[e-mail]

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4. Non-Intrusive Detection of Partial Discharge
Activity
4.1 What is Partial Discharge?
Partial discharges are electrical discharges that do not completely bridge the insulation
between electrodes. The magnitude of these discharges is usually small, however they
cause progressive deterioration of insulation that may eventually lead to failure.
Non-intrusive partial discharge detection provides a means for identifying these potential
sources of insulation failure. If not detected the discharge may result in failure causing not
only in loss of supply to customers and damage to plant but could also endanger staff.
4.2 How can Partial Discharge be detected?
A partial discharge emits energy in various ways and produces a number of effects which
can be detected:
Electromagnetic:
Radio
Light
Heat
Acoustic:
Audio
Ultrasonic
Gases:
Ozone
Nitrous oxides
The most practical techniques for non-intrusive testing are based on the detection of the
radio frequency part of the electromagnetic spectrum and ultrasonic emissions. The
UltraTEV Plus2has specifically been developed to enable electromagnetic and ultrasonic
activity to be detected in a single simple to use instrument.
4.3 Airborne Ultrasonic Discharge Activity
Acoustic emissions from partial discharge activity occur over the whole acoustic spectrum.
Audible detection is possible but depends on the hearing ability of the individual. Using
an instrument to detect the ultrasonic part of the acoustic spectrum has several
advantages; instruments are more sensitive than the human ear, are not operator
dependent and are more directional when operating above the audible frequency.

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The most sensitive method of detection is using an airborne ultrasonic Microphone centred
at 40 kHz. This method is very successful at detecting partial discharge activity provided
there is an air passage between the source and the Microphone.
4.4 Electromagnetic Discharge Activity
When partial discharge activity occurs within high voltage switchgear, it generates
electromagnetic waves in the radio frequency range which can only escape from the inside
of the switchgear through openings in the metal casing. These openings may be air gaps
around covers, or gaskets, or other insulating components. When the electromagnetic
wave propagates outside the switchgear, it produces a Transient Earth Voltage (TEV) on the
metal casing of the switchgear. The Transient Earth Voltage (TEV) is only a few millivolts,
of short duration having a rise time of a few nanoseconds and can be detected non-
intrusively by placing a TEV probe on the outside of the earthed switchgear whilst the
switchgear is in service.
4.5 Cable Partial Discharge Activity
When a partial discharge event occurs in a cable, there will be a resulting current pulse
coupled onto the earthed sheath of the cable. These pulses will propagate away from the
discharge site in both directions. Once the pulse reaches a change in impedance at a cable
joint or termination, a partial reflection occurs. This results in the pulses travelling back
down the cable several times (depending on the cable length) as they decay away. The
current pulses can be detected non-intrusively using a Radio Frequency Current
Transformer (RFCT) sensor placed around the cable earth strap.

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5. Using the UltraTEV Plus²
The Temperature & Humidity and RFCT accessories plug into the Smart
Accessory Port. The UltraDish, Contact Probe and the Flexible Sensor plug
into the Ultrasonic Accessory Port
Smart
Accessory
Port
Right Button
Middle Button
Left Button
Home Button
Photo Sensor
microSD card slot
LED charging indicator
Audio out/headphone
socket
Ultrasonic
Accessory Port
Micro USB charging port
Ultrasonic Sensor
TEV sensor
Lanyard loop

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5.1 Charging the UltraTEV Plus2
The UltraTEV Plus² charges via the Micro USB port on the base of the instrument. The
UltraTEV Plus² can be charged from the supplied mains or in-car charger or from a standard
USB port.
The level of charge is indicated in the top right hand corner of the notification bar during
operation. During charging with the instrument switched off, the charge status is indicated
via the charging indicator LED on the base of the instrument.
When the battery is being charged, the charging indicator turns Amber
When the battery is fully charged, the charging indicator turns Green
For the quickest charging time, turn off the UltraTEV Plus2instrument
during charging. Charging time is extended when connected to a USB port
compared to the mains charger.
The TEV/Cable PD and Ultrasonic measuring features are automatically
disabled when the instrument is being charged.
A fully-charged battery should provide approximately 6 hours of continuous
use while switched on and measuring. For practical purposes, a fully
charged battery should last a full day of surveying.
5.2 Turning the UltraTEV Plus² On/Off
Press and hold the Home Button for 1 second to turn on the UltraTEV Plus2.
The UltraTEV Plus2will boot displaying the EA Technology logo before proceeding to the
main menu after a few seconds.
To turn off the UltraTEV Plus2, hold the Home button for 2 seconds, the screen will go
off and the instrument will power down.

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5.3 Notification Bar
The notification bar is used to display basic status information about the UltraTEV Plus2.It
displays information such as Temperature, Humidity, Battery Level and other system
information as shown below. Additional information such as icons depicting the type of
accessory plugged in are also displayed here.
The Phase Reference indicator will turn red when a phase lock hasn’t been
achieved
Below are other icons that could appear on the notification bar:
This icon indicates that the current audio source is TEV
This icon indicates that the current audio source is Ultrasonic
This icon indicates that the current audio source is the RFCT
This icon shows when a UltraDish has been connected to the UltraTEV Plus²
This icon shows when a RFCT has been connected to the UltraTEV Plus²
This icon shows when a Contact Probe has been connected to the UltraTEV Plus²
This icon shows when a Flexible Sensor has been connected to the UltraTEV Plus
This icon shows when the UltraTEV Plus² is charging
This icon is used to show when a Wi-Fi connection has been established
Battery Level
Indicator
Temperature &
Relative Humidity
Audio
Source
Time
Phase
Reference

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5.3.1 Temperature & Humidity
The temperature and relative humidity reading is displayed on the notification bar only after
connection of the sensor.
The temperature and relative humidity sensor pictured below is connected to the Smart Accessory
Port on the left hand side of the instrument. The connection of the accessory automatically starts
the data collection with the latest reading being displayed in the notification bar at the top left of
the screen.
In order to allow use of other optional accessories whilst still displaying a reference temperature the
final reading on removal of the sensor is persisted. Additional brackets around the measurement
demonstrate that this is a historic reading.
5.4 Menu Bar
The menu bar is located at the bottom of the screen. It displays icons that correlate to the
Left, Middle and Right Buttons. The icons on the Menu bar change depending on which
mode the UltraTEV Plus2 is in.
The Left button , Middle Button and Right Button can be pressed
to select the Main menu buttons respectively

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5.5 Main Menu
After powering up, the UltraTEV Plus2will load up to the Main Menu as shown below.
The Home Button can be used to navigate back to the Main Menu at any
time.
The TEV icon on the main screen will change to a Cable PD icon
when a RFCT accessory is plugged in.

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5.6 TEV/Cable PD Menu
The TEV/Cable PD screen, selected via the top left icon on the Main Menu contains different
modes which can be used for the PD measurement.
The Interpretation option is only applicable when in TEV mode

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5.6.1 Measure Screen
The Measure mode is common to both TEV and Cable PD. This mode displays TEV readings
in dBmV (dB) or (if the RFCT accessory is connected) Cable PD readings in picoCoulombs
(pC).
To enter this mode, click the Measure icon .
P/Cycle –Shows the pulses per cycle based on either a 50 or 60Hz mains
frequency.
Severity –Shows the short term severity (calculated by multiplying TEV magnitude
(mV) by Pulses Per Cycle). When in Cable PD mode, this is calculated by Charge
(pC) multiplied by Pulses Per Cycle.
Max dB –displays the maximum dB value registered by the UltraTEV Plus2 since the
screen was entered or paused/reset. This value is displayed in pC.
Chart - The bar chart is used to show the amplitude of the current values being
read by the UltraTEV Plus2, from right to left.
Noise Level –This displays the amplitude in dB of the background noise level.
To exit the TEV screen back to the main menu, press the Home button .
There is an option to record a reading, this can be done by either clicking the red record
icon on the screen or by pressing the Middle button . All recordings are stored within
a ‘survey’ detailed in a later section of this manual.
Pausing a reading can also be achieved by either presing the Right button or clicking on
the ‘Pause’ icon. Audio output is also muted during a pause operation. After pausing
the screen the measurment can be restarted by pressing the restart button.

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5.6.2 Phase Plot
The Phase Plot mode is common to both TEV and Cable PD. The upper section of the screen
shows measurement values as detailed previously under the ‘Measure Screen’. The lower
section contains a phase resolved intensity plot ‘Phase Plot’ of the measured activity.
The plot displays either TEV or Cable PD events’ phase angles (x-axis) against their
amplitude (y-axis). The colour scale represents the intensity (pulse count) at a given phase
angle and amplitude.
This option is useful for distinguishing between whether a measured PD activity is a
genuine discharge source or just noise. For example, genuine PD activity may manifest
itself as a stable phase resolved plot which will occur at the same position with respect to
phase angle cycle by cycle; whilst white noise will not be phase related occurring at irregular
positions on the phase plot.
The Pause and Record option is also available in this mode; Severity, Noise
Level and P/Cycle are calculated as described under the Measure Screen

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5.6.3 Waveform
The ‘Waveform’ mode is common to both TEV and Cable PD. When in Cable PD mode, values
will be displayed in mA, whilst in TEV mode they will be measured in dBmV as below.
To enter this mode, click the Waveform icon .
This mode displays a plot of a TEV or Cable PD activity as a function of time allowing an
instantaneous view of an activity’s amplitude with respect to time. This option can be used
to assist in distinguishing between genuine PD activity and noise. A Partial Discharge pulse
will normally manifest as a sharp fast rising edge pulse whilst noise is often slower and
less repeatable.
The Pause and Record option is also available in this mode as described
under the Measure Screen

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5.6.4 Histogram
This option (shown below) displays the number of events registered (y-axis) for a given
amplitude (x-axis). This measurement option is useful for determining if more than one
discharge source is present; two distinct groups of bars on this chart could mean there are
two sources of discharge at the respective dB (or pC) levels. The screen is also useful in
positively identifying a genuine source of PD and assessing its pulse rate when there is a
high pulse rate noise floor affecting the standard pulse per cycle calculation.
The Pause and Record option is also available in this mode; Severity, Noise
level and P/Cycle are calculated and as described under the Measure Screen