EA UltraTEV Plus 2 User manual

UltraTEV®Plus²
Operating Manual
Model No: UTP2
Document Version: V10.00.00
Date: 22 April 2021

2388-MANUL-V10.00.00-UTP2 Operating Manual
All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means electronic, mechanical,
photocopied, recorded or otherwise, or stored in any retrieval system of any nature without the written permission of the copyright holder.
© EA Technology Ltd April 2021
EA Technology Limited, Capenhurst Technology Park, Capenhurst, Chester, CH1 6ES;
Tel: [phone] Fax: [phone]
http://www.eatechnology.com
Registered in England number 2566313
Version History
Date
Version
Author(s)
Notes
15th April 2016
2388L011
Gareth Devine
20th April 2016
2388L012
Gareth Devine
27th May 2016
2388L013
Gareth Devine
25th August 2016
2388L014
Gareth Devine,
Sion Hughes
07th October 2016
2388L015
Gareth Devine
14th November 2016
2388L016
Gareth Devine
19th July 2017
2388L017
Jo Cahill, Stuart
Aird
March 2018
2388L018
Jo Cahill, Stuart
Aird
9th July 2019
2388L019
Gareth Devine
22nd April 2021
2388-MANUL-V10.00.00
Will Platts
New features and functions
added

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Safety Precautions and procedures
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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Important Safety Information
•The UltraTEV®Plus2(UTP2) is designed for use at ground potential only. The UTP2, its accessories or
connecting leads, do not provide any inherent protection against electric shock.
•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.
•The UTP2 must only be used in conjunction with accessories and connecting leads as specified by EA
Technology.
•HFCTs, 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.
•The UTP2 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.
•Long-term exposure to loud sounds may cause hearing loss. To prevent possible hearing damage, do
not listen at high volume levels for long periods of time.

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Contents
1. General Description....................................................................................................................................................1
2. Non-Intrusive Detection of Partial Discharge Activity .........................................................................................1
3. Operating Instructions...............................................................................................................................................3
3.1 UltraTEV®Plus² Overview...........................................................................................................................3
3.2 Charging .........................................................................................................................................................4
3.3 Turning the UltraTEV®Plus² On/Off .........................................................................................................4
3.4 Self-Test .........................................................................................................................................................5
3.5 Notification Bar .............................................................................................................................................5
3.6 Temperature & Humidity.............................................................................................................................6
3.7 Menu Bar........................................................................................................................................................6
3.8 Main Menu .....................................................................................................................................................7
3.9 TEV/Cable PD Menu ....................................................................................................................................7
3.10 Interpretation.............................................................................................................................................. 11
3.11 Context Menu............................................................................................................................................. 14
3.12 Settings Screen.......................................................................................................................................... 17
3.13 File Browser................................................................................................................................................ 24
3.14 Function Check .......................................................................................................................................... 27
3.15 Survey .......................................................................................................................................................... 28
3.16 NFC Functionality...................................................................................................................................... 39
3.17 Reviewing Results..................................................................................................................................... 44
4. Detecting Partial Discharge using the UltraTEV® Plus² ................................................................................... 49
4.1 TEV Measurement..................................................................................................................................... 49
4.2 Cable PD Measurement ........................................................................................................................... 50
4.3 Ultrasonic Measurement ......................................................................................................................... 52
4.4 UHF Measurement.................................................................................................................................... 58
5. Maintenance............................................................................................................................................................. 66
6. UTP2 Technical Specification ............................................................................................................................... 67
7. UHFR1 Technical Specification ............................................................................................................................ 70
8. Sales and Service..................................................................................................................................................... 72

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1. General Description
The UltraTEV®Plus² (UTP2) is a versatile hand-held tool used to easily detect and classify Partial Discharge
(PD) in a wide range of electrical equipment.
The UTP2 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 UTP2 brings together several complementary sensor modes in a single handheld instrument. By regularly
checking switchgear while it’s in service using the UTP2, failure risks can be identified and action taken to avoid
faults and downtime. Algorithms and analysis capability in-built to the UTP2 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 UTP2 records measurements at the touch of a button. Internal storage can be used to provide access to
historical data while you are out in the field. Capturing what you have measured allows you to see trends in the
performance of your network.
2. Non-Intrusive Detection of Partial Discharge Activity
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.
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 UTP2 has specifically been developed to enable
electromagnetic and ultrasonic activity to be detected in a single simple to use instrument.
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.
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.
Ultra-High Frequency (UHF) Partial Discharge Activity
Electromagnetic waves produced by partial discharge activity within high voltage switchgear can also radiate
away from the asset through free space as Radio Frequency Interference (RFI). RFI due to partial discharge is
broadband in nature and can be detected across a range of frequencies. These radiated emissions can be
detected using a suitable antenna and radio receiver. Corona discharges around sharp points in air are common
at EHV voltages and must not be allowed to mask damaging partial discharges originating from problem plant
items. Corona discharges tend to be more of a problem when measuring below 200MHz. For this reason, the
UltraTEV Plus2UHF Receiver is designed to operate at higher frequencies (typically around 800 MHz). It has
the ability to be tuned up or down to move away from any local telecommunication transmissions which would
interfere with measurements.
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 High Frequency Current Transformer (HFCT) sensor
placed around the cable earth strap.

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3. Operating Instructions
3.1 UltraTEV®Plus² Overview
Figure 1
Lanyard loop
Figure 2
TEV sensor
Smart
accessory
port
Photo sensor
Left button
Ultrasonic
accessory
port
Right button
Ultrasonic microphone
Middle button
Home button
MicroSD card slot
Audio out /
headphone socket
LED charging
indicator
Micro USB
charging port

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3.2 Charging
Use the supplied USB cable to charge the UTP2 with the mains charger, in-car charger or from a standard USB.
UTP2 is charging
UTP2 is fully charged
For the quickest charging time, turn off the UTP2 during charging. Charging time is extended when
connected to a USB port compared to the mains charger.
The UTP2 charging LED may flash from red to green during the charging cycle.
The TEV/Cable PD and Ultrasonic measuring features are automatically disabled when the UTP2 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.
The UTP2 needs to have sufficient charge to remain powered on while viewing data through a USB port.
3.3 Turning the UltraTEV®Plus² On/Off
Power on - press and hold for 1 second
Power off - press and hold for 2 seconds
Micro USB charging port
Charging

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3.4 Self-Test
During power up, the UTP2 performs a self-test on TEV, ultrasonic and Cable PD using the built-in test sources.
The self-test is not a calibration check. During self-test, the ultrasonic sensor should be pointed away from
sources of noise.
If the self-test consistently fails, contact [email protected]
3.5 Notification Bar
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 HFCT
This icon indicates that the current audio source is the UHF (left of screen)
This icon shows when an UltraDish has been connected to the UTP2
This icon shows when a HFCT has been connected to the UTP2
This icon shows when an Ultrasonic Contact Probe has been connected to the UTP2
This icon shows when a Flexible Sensor has been connected to the UTP2
This icon shows when a UHF Receiver has been connected to the UTP2 (right of
screen)
This icon shows when the UTP2 is charging
This icon is used to show when a Wi-Fi connection has been established
This icon is used to show that HotSpot is enabled
Battery Level
Indicator
Temperature &
Relative Humidity
Audio
Source
Time
Phase
Reference