Megger SPG 40 User manual

Test and
Fault Locating System
SPG 40
Issue 9 (01/2017) – EN
128312675
Operating Manual

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Manufacturer:
Seba Dynatronic
Mess- und Ortungstechnik GmbH
Dr.-Herbert-Iann-Str. 6
96148 Baunach
Germany
+49 (0) 9544 / 68-0
+49 (0) 9544 / 68-2273
E-mail: [email protected]
Internet: www.megger.com
Copyright
The information contained in this document is for informational purposes only and is subject to
change without notice. Megger makes no warranty of any kind with regard to the information
contained in this manual, including but not limited to the implied warranties of merchantability
and fitness for a particular purpose. Megger shall not be liable for errors contained herein, nor
for incidental or consequential damages from the furnishing of this information.
This manual contains proprietary information that is protected by copyright. All rights are
reserved.
© Megger 2005

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Index
1Safety Advice 6
1.1 General Advice 6
1.2 Electrical Advice 8
2Technical Description 10
3Scope of delivery and Options 11
4Introduction 12
4.1 Stand-alone unit 12
4.2 Combined fault locating system Surgeflex 40 (SFX 40) 13
5Safety 14
5.1 Key Switch 14
5.2 FΩ protection device 14
5.3 FU-Safety Circuit 15
5.4 VDE clauses 0104 16
5.4.1 Mobile (non-stationary) test unit 16
5.4.2 Area of Danger 16
5.4.3 Emergency OFF button 16
6Operating 17
6.1 Connections and controls 17
6.2 Electrical Connection 19
6.2.1 Connection Sequence 19
6.2.2 Safety Earth 20
6.2.3 Auxiliary Earth / FU-Safety Circuit 20
6.2.4 Connecting the HV-line to a faulty cable 21
6.2.5 Cordoning off open cable ends 23
6.2.6 Electrical connection of a time domain reflectometer 23
6.2.7 Connecting the SPG 40 to the mains 23
6.3 Menus and Mode Operation 24
6.3.1 Switching On 24
6.3.2 Rotary Selector 25
6.4 Remote control using Teleflex SX 25
6.5 High Voltage control 26
6.5.1 High Voltage HV on 26
6.5.2 High voltage is active 26
6.5.3 Turning OFF high voltage 26
7Functions 27
7.1 Setup- Menu 27
7.2 Safety Menu 28
7.3 Testing Mode 29

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7.3.1 Insulation Resistance Test 29
7.3.2 40 kV – DC Proof Test 30
7.4 Operation mode Breakdown Recognition 31
7.5 Fault Prelocating 32
7.5.1 Prelocating mode ARM (Arc Reflection Method) 32
7.5.2 Prelocating mode ICE (Impulse Current Equipment) 34
7.5.3 Prelocating mode Decay 35
7.5.4 Prelocating mode ICE-Plus (optional) 36
7.6 Pinpointing Mode 39
7.6.1 Acoustic method 39
7.6.2 Step Voltage Method 41
7.7 Burn Mode 42
8Shutting Down the Fault Location System 43
9Care and Maintenance 44
10 Service and Service Contacts 45

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1 Safety Advice
1.1 General Advice
General
This manual contains basic advice for the installation and operation of
the product. It is essential to make this manual accessible to the
authorised and skilled operator. He needs to read this manual closely.
The manufacturer is not liable for damage to material or humans due to
neglectance of this manual and this and the following safety advices.
Setting up and operating the instrument may only be done by authorised
and skilled personnel. According to DIN VDE 0104 (EN 50191) and DIN
VDE 0105 (EN 50110) as well as the accident prevention regulation
(Unfallverhütungsvorschrift UVV), skilled personnel is defined as a
person who is qualified to work, judge and realize dangers due to his
professional education, knowledge and experience and his knowledge
of applicable regulations. Locally applying regulations have to be
observed.
Working with equipment of Megger
All electrical regulations of the country where the instrument is operated
have to be observed as well as national regulations for prevention of
accidents and existing regulations for the safety and operation of
equipment of the involved companies. After working with the equipment,
make sure to de-energise, protect against re-
energising, discharge,
ground and short-circuit the instrument and installations that have been
worked on. Original accessories ensure safe operation of the equipment.
It is not allowed and the warranty is lost if other accessories than the
original ones are used with the equipment. Repairs and service must
only be done by Megger or authorised service departments of Megger.
Megger recommends having the equipment serviced and checked once
per year at a Megger service location.
Intended application
Safe operation is only realised when
using the equipment for its
intended purpose (see chapter "Introduction"). Using the equipment for
other purposes may lead to human danger and damage of equipment of
involved installations. The limits described under technical data may not
be exceeded. Operating products of Megger in condensing environment
may lead to flash-over, danger and damage. The instruments should
only be operated under tempered conditions. It is not allowed to operate
Megger
products at direct contact with humidity, water or near
aggressive chemicals nor explosive gases and fumes.
Behaviour at malfunction of normal operation
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.

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Operation in traffic environment
To ensure safety for operators and traffic, the country-specific
regulations must be observed.
Transport and operating position
The device may only be operated and transported in an upright
(standing) position!
Using cardiac pacemaker
Physical processes during operation of high voltage may endanger
persons wearing a cardiac pacemaker when near these high voltage
facilities.
Fire fighting in electrical installations
Recommended extinguishing agent: carbon dioxide (CO2)
Carbon dioxide is electrically non conductive and does not leave
residue. It is safe to use in energized facilities as long as the
minimum distances are observed.
It is essential to observe the safety instruction on the extinguishing
agent.
Applicable is DIN VDE 0132.

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1.2 Electrical Advice
Dangers when operating with high voltage
Special attention and safety-
conscious behaviour is needed when
operating high voltage facilities and especially non-stationary equipment.
The regulations VDE 0104 about setting up and operation of electric test
equipment, i.e. the corresponding EN 50191 as well as country-specific
regulations and standards must be observed.
Advice about handling high voltage
Safety installations may not be by-passed nor deactivated.
Operation req
uires minimum two people whereas the second person
must be able to activate the emergency-OFF button in case of danger.
To avoid hazardous electric charges of metallic parts in the vicinity, all
metallic parts must be grounded.
To avoid drawing dangerous a
rcs, switching should only be done in
de-energized condition.
HV test equipment and burn-down equipment is short-
circuit proof.
Hazardous voltage may be present if a short circuit is opened during
operation. If measuring short-circuit current is necessary, it is advisable
to connect an arrester in parallel with the measuring instrument (e.g.
90 V glow arrester).
Adequate safety precautions must be met when using transient
measuring techniques, using HV test instruments or surge generators.
The equipment an
d all accessories must be connected according to
applicable standards VDE, EN or DIN as well as country-specific
regulations.
Always follow the 5 Safety Rules !
These five safety rules must always be followed when working
with high voltage:
1. De-energise
2. Protect against re-energising
3. Confirm absence of voltage
4. Ground and short-circuit
5. Cover up or bar-off neighbouring energised parts

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2 Technical Description
Display ¼ VGA display for status, input, help and
results, „single-button-operation“
Insulation Test
Voltages 500 ... 5000 V, in steps of 500 V
Ranges 1 kΩ, 1 MΩ, 100 MΩ
DC Testing 0 … 40 kV DC
Leakage current display:
0 ... 1/10 mA auto-ranging
(0 … 100 mA during changing phase)
Breakdown recognition 0 ... 40 kV;
Burning 0 ... 8 kV ; 700 mA
0 ... 20 kV ; 100 mA
Surge generator SPG 40-25
SPG 40-32
0 … 12.5 kV and 0 … 25 kV
0 … 16 kV and 0 … 32 kV
Surge generator - options: 0 ... 4 kV, 0 ... 8 kV or 0 … 4/8 kV
0 ... 3 kV, 0 ... 6 kV or 0 … 3/6 kV
Surge energy max. 1000 Joules in each range
(optional: 2000 Joules)
Surge rate 3 … 10 sec. and single pulse
Sheath fault location 0 ... 5 kV, 0 … 10 kV,
adjustable current output
pulse ratio: continuous, 1:3 ; 1:4; 1:6 (sec)
HV-Fault Prelocation (with optional TDR)
ARM (integrated filter),
Impulse Current (integrated coupler)
Decay (integrated coupler)
ICE-Plus
Operating temp. -10 ... + 50 °C
Mains supply 230 VAC ±10% (optional: 115 VAC ±10%);
50 / 60 Hz (Sinus)
Power input 1.7 kVA max.
AC mains fuses 2 x T 8 A (for 230 V)
2 x T 16 A (for 115 V)
Protection category IP20 (according to EN 60529)
Dimensions 545 x 430 x 1050 mm (L x W x H)
Weight approx. 116 kg

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3 Scope of delivery and Options
Scope of delivery1:
Description Item
Test and fault locating device SPG 40
Set of cables VL SPG-40
consisting of:
AC mains connection NKG S2
Earthing connection cable EK 1
Auxiliary earth cable MK 54-B
High voltage connection
(25 on manual cable reel) HSK 27
MC connection adapter HKZ 02-1 (red) and
HKZ 03-1 (black)
Operating manual
Options:
Description Item
NH adapter 700-10-0437
Operational earth connection with brass
screw-on clamp EKS 80
Operational earth connection adapter
with big and flexible handle-screw EKD 80
TDR (Time Domain Reflectometer) Teleflex SX, T 3060 or others
Surge Wave Receiver Digiphone
Step Voltage Indicator ESG NT
Line Location System Ferrolux or others
External operating panel
Dimensions incl. foot plate
(B x H x T):
500 x 430 x 240 mm
External safety device
with HV operaring function 1006953
External safety device 820003206
1If permanently installed in a test van or on a trolley, the scope of delivery may be different.

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4 Introduction
The SPG 40 has been developed for fault locating in low and medium voltage
networks. Its functions are:
DC-Testing,
Breakdown recognition,
Measuring leakage resistance,
ARM filter for prelocating with a TDR (optional),
Further prelocating methods (Decay, ICE, ICE-Plus)
Pinpoint locating with step voltage or acoustic method,
Burning.
4.1 Stand-alone unit
The SPG 40 uses operation with just one rotary selector. For
safety reasons the high voltage setting must be activated with a separate
hardware button.
The operating panel is located in the top panel of the SPG 40 but it is
optionally available as external control unit.

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4.2 Combined fault locating system Surgeflex 40 (SFX 40)
Combined with a reflectometer of type Teleflex SX or T3060, the SPG 40 is
enhanced by the most common HV pre-locating methods and so upgraded to
a fully fledged fault locating system (SFX 40).
While – when combined with the T3060 – the operating steps are to be carried
out individually on the operating elements of the respective device, the
Teleflex SX is suitable for direct control of the SPG 40. Supplemented by the
necessary HV operating elements (Teleflex SX-M), it can thus be used for
comprehensive remote control of a spatially separate SPG 40 in a test van
(Compact City).

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5 Safety
WARNING
Risk of fatal injury from electric shock!
Switching off or bypassing the safety equipment described in
the following two sections will put persons and materials at
significant risk. For this reason, prior to a manual shut-off the
operator must ensure that the earthing conditions allow the
device to be worked with safely on his own responsibility by
taking suitable measures and measurements.
Because the SPG 40 generates a hazardous voltage of more than 1 kV it must
be operated by trained specialists only. The following safety measures should
be followed:
5.1 Key Switch
For product liability reasons measuring devices generating hazardous
voltages have to be protected against accidental activation by unauthorised
users. For this purpose the SPG 40 has a key switch, to avoid unauthorised
operation by persons other than the operator. (see page 17, Fig. 2)
5.2 FΩ protection device
For safe earthing the loop ‘operating earth’ – ‘safety earth’ is monitored
(indicated in the following figure with o). The resistance between operating
and safety earthing must not exceed 6 Ω, otherwise the device cannot be
switched to ‘stand-by’. If this should happen during operation (i.e. earth clamp
gets disconnected), the SPG 40 will immediately shut off and ground the cable
and the HV part of the unit. The menu ‘safety circuit’ will appear, signaling
‘FOHM loop resistance – error’. It may be necessary to make a connection xa.
operating earth – safety earth to meet the requirements (see chapter 6.2.4).
In some rare cases it is possible that the station earthing loop between
operational earth and safety earth does not have a resistance lower than 6 Ω.
Providing that all of the conditions set out in chapter 6.2.2 are fulfilled,
the protective monitoring may be switched off in the setup in this case (see
chapter 7.1). This is done at operators responsibility. An indication will show in
the main menu that F Ω protection is switched off.
F Ω

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5.3 FU-Safety Circuit
Also for safety for the operator, the auxiliary earth connection [23] must be
connected to a ground rod as close as possible to the SPG 40. The FU-safety
circuit of the SPG 40 will immediately shut the unit off and ground the cable
and the HV part of the unit over a resistor if the voltage between the
instrument and the surrounding earth gets higher than 33 V AC / -40 V DC, or
if the resistance of the earth loop between safety earth and auxiliary earth gets
higher than 150 kΩ. The menu ‘safety circuit’ will appear on screen, signaling
‘FU – step voltage - error’.
Fig. 1: FΩ– monitoring
In some areas the ground resistance between instrument (earthed at station
earth) and the terrain where the instrument is set up may be higher than
150 kΩ due to ground conditions (e.g. dry sand, rock). Providing that all of
the measures described in chapter 6.2.3 have been taken, the step voltage
monitoring may be switched off in the setup in this case (see chapter 7.1).
This is done at operators responsibility. An indication will show in the main
menu that FU protection is switched off.
power cable
e.g. without sheath
HV-connecting cable (sheathed)
FΩ < 6Ω
OE
PE
a.
OE: operating earth
PE: safety earth / station earth
AE: auxiliary earth
FU
AE
F U

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5.4 VDE clauses 0104
5.4.1 Mobile (non-stationary) test unit
VDE standard 0104 states that the set-up of the instrument, including the
beginning of the cable to be measured, represents a non-stationary test
installation and is considered as a test site without protection against human
contact. The same also applies to the end(s) of the cable to be tested.
5.4.2 Area of Danger
Test sites without protection against direct human contact are considered
‘areas of danger with various zones of danger levels’ and have to be cordoned
off, secured and marked accordingly.
5.4.3 Emergency OFF button
Test sites in general have to be equipped with an emergency OFF button.
The SPG 40 has a red emergency OFF button on the face plate (see page 17,
Fig. 2). An external safety device with an emergency stop switch is optionally
available (820003206). It can be connected to the jack [6] on the rear
connecting panel (see page 18, Fig. 3) When using the SPG 40 without the
external emergency OFF button, the standard dummy plug has to be placed in
jack [20] so that the device can be switched on.

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6 Operating
6.1 Connections and controls
1. 2. 3. 4. 5. 6. 7.
white green red
Fig. 2: Controls
Element Function
1. emergency OFF button
2. push-button – white on/off switch
press: activates system controls
lit: device is switched on
3. key switch
4. push-button – green: HV-ON key
lit: HV readiness for switching on
(high voltage can be switched on)
press: Switches the high voltage on; earthing of the
output is cancelled
5. push-button -red : HV-OFF key
lit: HV-operation
(high voltage present at output)
press: switches high voltage off
(output will be grounded over a discharge
resistor)
6. rotary selector with enter function
7. display

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8 9 10 11 12 14 13 15 16 17 18 16
23 22 21 20 19
Fig. 3: Connections - back
8. CAN bus connection to external control panel (optional)
9. Control connection to external control panel (optional)
10. CAN bus connection to Teleflex SX / T 30-E control panel
11. Control line to separated control elements (1)
SPG 40-1 (since 2015): Teleflex SX-M, system control panel
of a test van or external safety
device
SPG 40 (until 2014): „T30-E HV-Control“ box
12. Safety earth
13. ARM trigger
14. ARM signal
15. Safety circuit for earth connection and door contacts
16. Fuses (1) 115 V: T16 A H250 ;
230 V: T8 A H250
17. Protected 13.5 VDC power output for TFX SX and T30-E
(max. 60 W)
18. Integration and status check of an external HV connector
19. AC power supply 115 / 230 V (1) / 50/60 Hz
20. External emergency-off-button and signal lights (see "options")
21. Output of signal for surge pulse mode (impulse current mode)
22. Output of signal for decay mode
23. Auxiliary earth connection for FU-protection
(1) depending on instrument version,
see type label on instrument.

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6.2 Electrical Connection
During electrical connection, please observe the safety precations in section
1.2.
6.2.1 Connection Sequence
The electrical connection must be carried out in the sequence shown in the
figure. Connection to the mains occurs last!
Connection of the earthing cable
Connection of the FU cable (auxiliary earth)
Connection to the test object
Connection to the mains
Connection of the external safety device (optional)
230 V (optional 110 V),
50/60 Hz (Sinus)

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6.2.2 Safety Earth
The SPG 40 has to be earthed before use. To do so connect the protective
earth connection [10] to a good safety earth (e.g. station earth, etc.) using the
earth lead EK1 supplied.
Note that the earthing clamp should only be attached to clean metallic points
of contact.
The device should never be operated without the earth lead being
connected. The earth lead establishes the connection between the
device and the safety earth and ensures that the device is touch-
proof.
The earthing provided through the ear
th contact of the mains
connection is not sufficient.
Without the earth lead being connected, the housing leakage
current could exceed 3.5 mA, if the earth connection to the wall
socket is interrupted (safety hazard according to EN 61010).
6.2.3 Auxiliary Earth / FU-Safety Circuit
Connect the auxiliary earth connection [23] to a earthing rod as close as
possible to the SPG 40 with the connecting cable MK 54-B supplied. The FU-
safety circuit of the SPG 40 will immediately shut the unit off and ground the
cable and the HV part of the unit if the voltage between the instrument and the
surrounding earth gets higher than 33 V AC / -40 V DC, or if the resistance of
the earth loop between safety earth and auxiliary earth gets higher than
150 kΩ.
If the safety circuit menu appears and the “FU” fault is reported after switching
the system on despite the connected auxiliary earth, the following tips may
provide a remedy:
•Try inserting the earthing rod in other locations which may be more
suitable. In heavily built-up areas, the gaps between the concrete
slabs can be used, for example.
•Use water to moisten the location where the earthing rod has been
inserted.
•Attach the auxiliary earth to a foundation earth (e.g. a lightning
protection system). Do not use the same foundation earth to which
you have already connected the main earthing cable.