Megger Teleflex SX-1 User manual

1
Teleflex SX-1
Portable reflectometer and control unit of the fault
location system Surgeflex 40
USER GUIDE
Issue: E (04/2023) - EN
Article number: 86820

2

Consultation with Megger
3
Consultation with Megger
The present system manual has been designed as an operating guide and for reference.
It is meant to answer your questions and solve your problems in as fast and easy a way
as possible. Please start with referring to this manual should any trouble occur.
In doing so, make use of the table of contents and read the relevant paragraph with great
attention. Furthermore, check all terminals and connections of the instruments involved.
Should any question remain unanswered or should you need the help of an authorized
service station, please contact:
Megger Limited Megger Germany GmbH (Baunach)
Archcliffe Road
Kent CT17 9EN
T: [phone]
F: [phone]
E: [e-mail]
Dr.-Herbert-Iann-Str. 6
D - 96148 Baunach
T: [phone] – 0
F: [phone]
E: [e-mail]
Megger Germany GmbH (Radeburg) Megger USA
Röderaue 41
D - 01471 Radeburg / Dresden
T: [phone] – 0
F: [phone]
E: [e-mail]
Valley Forge Corporate Centre
2621 Van Buren Avenue
Norristown, PA 19403 USA
T: [phone]
F: [phone]
Megger
All rights reserved. No part of this handbook may be copied by photographic or other means unless Megger
have before-hand declared their consent in writing. The information in this document is subject to change without
notice and should not be construed as a commitment by Megger. Megger cannot be made liable for technical or
printing errors or shortcomings of this handbook. Megger also disclaims all responsibility for damage resulting
directly or indirectly from the delivery, supply, or use of this matter.

Terms of Warranty
4
Terms of Warranty
Megger accept responsibility for a claim under warranty brought forward by a customer
for a product sold by Megger under the terms stated below.
Megger warrant that at the time of delivery Megger products are free from manufacturing
or material defects which might considerably reduce their value or usability. This warranty
does not apply to faults in the software supplied. During the period of warranty, Megger
agree to repair faulty parts or replace them with new parts or parts as new (with the same
usability and life as new parts) according to their choice.
This warranty does not cover wear parts, lamps, fuses, batteries and accumulators.
Megger reject all further claims under warranty, in particular those from consequential
damage. Each component and product replaced in accordance with this warranty
becomes the property of Megger.
All warranty claims versus Megger are hereby limited to a period of 12 months from the
date of delivery. Each component supplied by Megger within the context of warranty will
also be covered by this warranty for the remaining period of time but for 90 days at least.
Each measure to remedy a claim under warranty shall exclusively be carried out by
Megger or an authorized service station.
This warranty does not apply to any fault or damage caused by exposing a product to
conditions not in accordance with this specification, by storing, transporting, or using it
improperly, or having it serviced or installed by a workshop not authorized by Megger. All
responsibility is disclaimed for damage due to wear, will of God, or connection to foreign
components.
For damage resulting from a violation of their duty to repair or re-supply items, Megger
can be made liable only in case of severe negligence or intention. Any liability for slight
negligence is disclaimed.
Since some states do not allow the exclusion or limitation of an implied warranty or of
consequential damage, the limitations of liability described above perhaps may not apply
to you.

Contents
5
Contents
Consultation with Megger...............................................................................................3
Terms of Warranty ...........................................................................................................4
Contents ...........................................................................................................................5
1Safety Instructions ...........................................................................................7
1.1 General Notes ....................................................................................................7
1.2 General Safety Instructions and Warnings.........................................................8
2Technical description ....................................................................................10
2.1 System description ...........................................................................................10
2.2 Technical data ..................................................................................................12
2.3 Display and controls .........................................................................................14
2.4 Connection elements........................................................................................15
3Start-up............................................................................................................16
3.1 Electrical connection ........................................................................................16
3.1.1 Connection to test object or HV devices ..........................................................16
3.1.2 Ensuring power supply .....................................................................................21
3.2 Switching on .....................................................................................................21
4Operation ........................................................................................................22
4.1 Screen layout ...................................................................................................22
4.2 Basics of control system...................................................................................24
4.3 SPG 40 remote-control mode (Surgeflex 40 Fault Location System) ..............27
4.4 Quick selection of operating modes – .....................................................29
4.5 On-line help – ..........................................................................................29
4.6 Phase selection - .....................................................................................30
4.7 History database - ...................................................................................31
4.8 System settings - .......................................................................................36
4.8.1 Data menu - .................................................................................................38
4.8.2 Basic settings - ...........................................................................................39
4.8.3 Administration menu - (Administration password required) .......................41
4.8.3.1 Updating the software - .............................................................................42
4.8.3.2 User administration - ..................................................................................43
4.8.3.3 Connection Cable Calibration - ...................................................................44
5Performing measurements............................................................................46
5.1 Good to know …...............................................................................................46
5.1.1 Propagation velocity .........................................................................................46
5.1.2 Pulse width .......................................................................................................47
5.1.3 Typical TDR reflectograms...............................................................................48

Contents
6
5.2 Standard functions ...........................................................................................49
5.2.1 Teleflex menu - ..........................................................................................49
5.2.2 Trace functions - .........................................................................................51
5.3 Pulse reflection measurement - / ..........................................................52
5.4 High-voltage prelocation method .....................................................................54
5.4.1 Arc reflection measurement (ARM) - .........................................................54
5.4.2 Voltage decoupling (Decay) - ....................................................................58
5.4.3 Current decoupling (ICE) - ........................................................................60
5.4.4 ARM burning - (not available in SPG 40 remote-control mode) ................62
5.5 Partial discharge pinpointing - (not available in SPG 40 remote-control
mode) ...............................................................................................................64
5.6 Additional operating modes in the SPG 40 remote-control mode....................66
6Exporting and processing measurement data............................................67
7Information on rechargeable battery............................................................68
8Maintenance, care and troubleshooting ......................................................71
Appendix 1: Connection configurations .....................................................................72

Safety Instructions
7
1Safety Instructions
1.1 General Notes
This manual contains basic instructions for the commissioning and operation of the device
/ system. For this reason, it is important to ensure that the manual is always available to
the authorised and trained operator. He needs to read the manual thoroughly. The
manufacturer is not liable for damage to material or humans due to non-observance of
the instructions and safety advices provided by this manual.
Locally applying regulations have to be observed!
The following signal words and symbols are used in this manual and on the product itself:
Signal word /
symbol
Description
DANGER Indicates a potential hazard which will result in death or serious
injury if not avoided.
WARNING Indicates a potential hazard which may result in death or
serious injury if not avoided.
CAUTION Indicates a potential hazard which may result in moderate or
minor injury if not avoided.
NOTICE Indicates a potential hazard which may result in material
damage if not avoided.
Serves to highlight warnings and safety instructions.
As a warning label on the product it is used to draw attention to
potential hazards which have to be avoided by reading the
manual.
Serves to highlight warnings and safety instructions that
explicitly indicate the risk of an electric shock.
Serves to highlight important information and useful tips on the
operation of the device/system. Failure to observe may lead to
unusable measurement results.
It is important to observe the generally applicable electrical regulations of the country in
which the device will be installed and operated, as well as the current national accident
prevention regulations and internal company directives (work, operating and safety
regulations).
After working on the system, it must be voltage-free and secured against reconnection as
well as having been discharged, earthed and short-circuited.
Use genuine accessories to ensure system safety and reliable operation. The use of other
parts is not permitted and invalidates the warranty.
Safety precautions
Labelling of safety
instructions
Working with products
from Megger

Safety Instructions
8
The system may only be installed and operated by an authorised electrician. DIN VDE
0104 (EN 50191), DIN VDE 0105 (EN 50110) and the German accident prevention
regulations (UVV) define an electrician as someone whose knowledge, experience and
familiarity with the applicable regulations enables him to recognise potential hazards.
Anyone else must be kept away!
The product meets the following security requirements of the European Council
Directives:
•EMV Directive
•Low Voltage Directive
•RoHS Directive
The full text of the EU declaration of conformity is available by request.
1.2 General Safety Instructions and Warnings
The operating safety is only guaranteed if the delivered system is used as intended (see
page 10). Incorrect use may result in danger to the operator, to the system and the
connected equipment.
The thresholds listed in the technical data may not be exceeded under any circumstances.
The equipment may only be used when working properly. When irregularities or
malfunctions appear that cannot be solved consulting this manual, the equipment must
immediately be put out of operation and marked as not functional. In this case inform the
person in charge who should inform the Megger service to resolve the problem. The
instrument may only be operated when the malfunction is resolved.
Five safety rules
The five safety rules must always be followed when working with HV (High Voltage):
1. De-energise
2. Protect against re-energising
3. Confirm absence of voltage
4. Earth and short-circuit
5. Cover up or bar-off neighbouring energised parts
Operating staff
Declaration of
Conformity (CE)
Intended application
Behaviour at
malfunction of normal
operation

Safety Instructions
9
Fire fighting in electrical installations
•According to regulations, carbon dioxide (CO2) is required to
be used as extinguishing agent for fighting fire in electrical
installations.
•Carbon dioxide is electrically non conductive and does not
leave residues. It is safe to be used in energized facilities as
long as the minimum distances are maintained. A CO2fire
extinguisher must be always available within electrical
installations.
•If, contrary to the regulations, any other extinguishing agent is
used for fire fighting, this may lead to damage at the electrical
installation. Megger disclaims any liability for consequential
damage. Furthermore, when using a powder extinguisher near
high-voltage installations, there is a danger that the operator of
the fire extinguisher will get an electrical shock from a voltage
arc-over (due to the powder dust created).
•It is essential to observe the safety instruction on the
extinguishing agent.
•Applicable is DIN VDE 0132.

Technical description
10
2Technical description
2.1 System description
The Teleflex SX-1 is a two-phase time domain reflectometer (TDR), which excels on
account of its lightweight and compact design.
It is an ideal addition for a "satellite"-based fault location concept in supply areas with low
density and failure rate, where reaction speed, weight, size and economy are the driving
factors.
The operating principle of the Teleflex SX-1 is identical to the radar's familiar pulse-echo
process. Adequately shaped measuring pulses are fed into the cable, which are then
propagated at cable-specific speed towards the end of the cable. Any change in the
electrical properties of the cable results in a certain portion of the pulse being reflected
back. These reflections are registered by the Teleflex SX-1 and then shown on the screen.
The changes in the electric cable properties can also be caused by cable faults and joints.
The end of the cable also generates a very specifically-shaped reflection. The type and
distance of a noticeable problem can be derived from the reflection's shape and
propagation time.
The Teleflex SX-1 can be used both as an individual device as well as in combination with
various HV fault location systems (e.g. surge-wave generators, burn-down instruments).
Thanks to the CAN interface the device is also ideally suited to directly control the SPG
40 and combines both devices into the fully-fledged fault location system Surgeflex 40
(SFX 40), which is often also expanded to become an entry-level test van system
(Compact City). Teleflex SX-1 is provided specifically for these vehicle installations in a
19-inch version without internal battery.
The Teleflex SX-1 combines the following features and functions in a single system:
•Sturdy and weatherproof for outdoor use
•Rechargeable battery or mains operation possible
•Dual operating concept (touch screen and rotary knob)
•USB interface for data transfer
•Supports all existing prelocation methods.
•Automatic detection of cable end and fault position
•ARMslide technology with 15 measurements per ARM surge
•Partial Discharge (PD) pinpointing in combination with PD-TX pulse transmitter
•Direct control of SPG 40 fault location system
Description
Product variants
Features

Technical description
11
The scope of delivery of the system includes the following:
•Basic device
•Plug-in power adapter
•Earthing lead with right-angle plug, 1.5 m
•2 x measurement cables incl. alligator clips, 2.5 m
•3 x BNC connection cables, 1.5 m
•Operating manual
If permanently installed in a test van or on a trolley, the scope of delivery may be different.
Check the contents of the package for completeness and visible damage right after
receipt. In the case of visible damage, the device must under no circumstances be taken
into operation. If something is missing or damaged, please contact your local sales
representative.
If the following optional accessories do not form part of the scope of delivery, these can
be ordered from sales:
Accessory Description Item number
CAN bus cable For connection of Teleflex SX-1 to the SPG 40
fault location system
2005251 (0,75 m)
2005252 (3 m)
2005253 (5 m)
HV connection set Suitable for connection to outdoor HV cable
terminations.
2004385 (5 m)
2005067 (12 m)
Separating filter
TF VX
For connection to live low-voltage lines.
Suitable for stand-alone devices and test van
systems with LV cable (adapter cable VK 131
is included).
1010520
Separating filter
TF VX-M
For connection to live low-voltage lines. This
version is intended for test van systems
without LV cable.
1010838
Scope of delivery
Check contents
Optional accessories

Technical description
12
2.2 Technical data
The Teleflex SX-1 is defined by the following technical parameters:
Parameter Value
Distance range 20 m … 160 km at V/2 = 80 m/μs
Pulse width 20 ns … 10 μs
Pulse amplitude 50 V
Resolution 0.1 m at V/2 = 80 m/μs,
Accuracy 0.1%
Data rate >533 MHz
Propagation velocity
•Input
•Range (V/2)
As V/2 or NVP value
10 … 149.9 m/μs or 33 … 492 ft/μs
Dynamic response range >96 dB
Output impedance 50 Ω
Distance dependent de-attenuation
(ProRange)
>22 dB, adjustable
Refresh rate 7 images per second
Number of measurements per ARM
surge
15
Withstand voltage for IN1 and IN2
measuring inputs
Up to max. 400 V AC, 50/60 Hz (only when
connected via separating filter)
Power supply
•Battery1
•Plug-in power adapter
•Socket for external power supply
Lithium-ion rechargeable battery (97 Wh)
100 V … 240 V, 50 / 60 Hz, 50 VA
10 V … 17 V DC, 3.8 A
Operating time in operating mode1Up to 6 hours permanent recording (with
new rechargeable battery)
Display 10.1" colour TFT WXGA 1280x800,
capacitive touch screen, 1000 cd/m2, LED-
backlight
Memory 4 GB mSATA for program and data
Interfaces USB, BNC, CAN
1The 19-inch version does not contain an internal battery

Technical description
13
Parameter Value
Operating temperature −10 °C ... +55 °C
Storage temperature
•Short-term storage
(max. 3 days)
•Long-term storage
(preserves rechargeable battery)
−20 °C ... +60 °C
15 °C ... 35 °C
Dimensions (W x H x D) 362 x 195 x 195 mm
Weight27.8 kg
Protection class
(in accordance with IEC
61140 (DIN VDE 0140-1))
II
Ingress protection rating2(in
accordance with IEC 60529
(DIN VDE 0470-1))
IP54 (open case but closed USB-cover)
IP65 (closed case)
2Data apply only to the portable stand-alone version in the Pelicase

Technical description
14
2.3 Display and controls
The following control and display elements are located on the front panel of the Teleflex
SX-1:
Element Description
Display
Rotary encoder with function keys on the side
USB port for connecting a USB flash drive or a USB printer
ON/OFF button with charge state indication (see page 68)

Technical description
15
2.4 Connection elements
The following connection elements are located on the rear of the Teleflex SX-1:
Element Description
BNC socket for connection to the trigger output of the ARM coupling unit
BNC socket for direct connection to any phase of the test object
Auxiliary/functional earth connection
BNC socket for direct connection to any phase of the test object
CAN interface (LON optional) for connection of specific HV devices (e.g.
SPG 40)
Charging socket
BNC socket for connection to current or voltage decoupler of a fault location
system
BNC socket for connection to signal (KLV) socket of the ARM coupling unit

Start-up
16
3Start-up
The rechargeable battery of the Teleflex SX-1 is pre-charged by the manufacturer to
roughly 50% of its capacity. We recommend that the rechargeable battery be fully charged
(see page 69) before initial start-up for a period of roughly 8 hours. This measure is not
necessary for the 19-inch version without internal battery.
The guidelines for implementation of occupational safety when operating a test system /
test van often differ between one network operator and another and it is not uncommon
for national regulations (like, i.e. the German BGI 5191) to be used as well.
Inform yourself of the guidelines applicable in the area of operation beforehand, and
comply with the specified rules for work organization and for implementing the test system
/ test van.
3.1 Electrical connection
3.1.1 Connection to test object or HV devices
WARNING
Safety instructions for the electrical connection
•The device may only be connected to de-energized equipment. The
general safety instructions and, in particular, the five safety rules
(see page 8) must always be followed prior to connection to the test
object.
•When connected to an HV device, the instructions and safety
information for electrical connection as contained in the operating
manual for the respective device must be complied with.
•All the cables at the measuring point that are out of operation and
are not to be tested must be shorted and earthed.
•Because the amount of voltage applied to the test object poses a
danger in the event of contact, the test station itself and the ends of
the cables must be shielded as per VDE 0104 to ensure that such
contact is not possible. Make sure that all cable branches are taken
into account.
The electrical connection to HV devices is described in this section on as generally-
applicable a basis as possible. Some detailed connection configurations with the device-
specific designations for the relevant connecting point are available in the Appendix (see
page 72).
Initial start-up
Applicable guidelines

Start-up
17
To enable the Teleflex SX-1 to be used to conduct a pulse reflection measurement, the
device must be connected to one or two phases of the test object as shown in the figure
directly:
To enable the Teleflex SX-1 to be used for PD pinpointing, the device must be directly
connected to the PD-affected phase of the test object as shown in the figure:
Direct connection to
the test object
only if necessary (e.g. for comparing)

Start-up
18
By using the optional separation filter TF VX (or TF VX-M), the Teleflex SX-1 can be
connected to low-voltage lines with a voltage of up to 400 V.
WARNING
Danger from electrical shock!
When connecting to live parts, the applicable safety regulations for live-
line working must be observed!
The connection can be made between two phases or, as shown in the following example,
between phase and earth.
When connecting via the separation filter, an additional virtual cable length of
approx. 4 m (at v/2 = 80 m/μs) must be taken into account when evaluating the
located distance!
Connection to live low-
voltage lines
L1
L2
L3
PEN
TF VX
CAT IV 600 V
TF VX-M
Direct connection and connection
via LV cable of a test van
Connection via HV
cable of a test van

Start-up
19
To enable the Teleflex SX-1 to be used to conduct an arc reflection measurement
(ARM), the device must be connected to a suitable ARM coupling unit (e.g. arc surge
adapter, power-separation filter) as shown in the figure. The coupling unit ensures reliable
coupling and decoupling of the test pulses and also safeguards the reflectometer against
the high voltage present in the cable. Some fault location systems comprise both surge
wave generator and ARM coupling unit in the same housing.
To enable the Teleflex SX-1 to be used to conduct a transient prelocation procedure
(ICE or decay), the device must be connected to the current or voltage decoupler of a
fault location system as shown in the figure.
Connection to an ARM
coupling unit
Connection to current
or voltage decoupler
Surge-wave generator
ARM
trigger
ARM signal
(KLV)
To test
object
ARM coupling unit
Fault-location system
Current or voltage
decoupler (often
designated as SYK or
SYU)
To test
object

Start-up
20
To enable the Teleflex SX-1 to be used to conduct an prelocation in the ARM burning
operating mode, the device must be connected as shown in the figure to a suitable power-
separation filter (e.g. M 219). This ensures reliable coupling and decoupling of the test
pulses and it also safeguards the reflectometer against the high voltage pending in the
cable.
Normally, the combination of Teleflex SX-1 and SPG 40 is used as a permanent
installation in a test van. In this case, the two systems are permanently wired to each
other.
If however, two individual systems are to be connected to each other for a measuring
procedure, then the wiring must be manually connected as shown in the figure below.
The CAN bus connection here is only necessary if the Teleflex SX-1 is to be used for
remote control (see page 27) of the SPG 40. The cable required for this is available as a
special accessory (see page 11).
Connection to a burn-
down instrument
Connection to SPG 40
Burn-down instrument
Power-separation filter
Teleflex
To test object
To test
object