Megger SVERKER 750 User manual

SVERKER 750/780
Relay Test Unit
User's Manual
Megger*
1
Art No.ZP-CD03E
Doc. CD0795IE V07
2013

Megger
SVERKER 750/780
Relay Test Unit
User's Manual
NOTICE OF COPYRIGHT & PROPRIETARY RIGHTS
©2013,Megger Sweden AB.All rights reserved.
ThecontentsofthismanualarethepropertyofMegger Sweden AB.Nopartofthisworkmaybereproducedor transmitted inany form or
by anymeans,exceptaspermittedin written licenseagreement with Megger Sweden AB.Megger Sweden ABhasmadeeveryreasonable
attempt toensurethecompletenessandaccuracyofthisdocument.However,the information containedinthismanualissubjecttochange
without notice,anddoesnotrepresenta commitmentonthepartofMegger Sweden AB.Anyattachedhardwareschematicsandtechnical
descriptions, orsoftwarelistingsthatdisclosesourcecode,arefor informational purposesonly.Reproductioninwholeorinparttocreate
working hardwareorsoftwareforotherthanMegger Sweden ABproductsis strictly prohibited, exceptaspermittedby written license
agreement with Megger Sweden AB.
TRADEMARK NOTICES
Megger® and Programma® aretrademarksregisteredintheU.S.andothercountries.Allotherbrandandproductnamesmentionedinthis
document aretrademarksorregisteredtrademarksoftheirrespectivecompanies.
Megger Sweden ABiscertifiedaccordingtoISO9001and 14001.
Postal address:Visitingaddress:
Megger Sweden ABMegger Sweden AB
Box724Rinkebyvagen19
SE-182 17 DANDERYD SE-182 36 DANDERYD
SWEDENSWEDEN
T [phone][email protected]mf f
F+468 51019595www.megger.com^ ^
CD0795IE
ZP-CD03E SVERKER 750/780

Contents
1 Safety
6
Symbols on theinstrument 6
Safety instructions 6
2 Introduction
8
2.1Applications 8
Otherapplications 8
2.2Design and construction 9
3 Description
10
3.1 General 10
SVERKER 750controlpanel 10
SVERKER 780controlpanel 10
3.2Currentsource 11
3.3Timer 12
Startconditions 12
Stopconditions 12
3.4Tripindicator 13
3.5Display 13
3.6Ammeter & voltmeter 14
3.7 AC Voltagesource 15
3.8Auxiliaryvoltagesource 15
3.9 Make/Break contact 16
3.10Resistor set andcapacitor 16
3.11 Power supply 17
3.12Computerinterface .17
4 Control panels
18
4.1Frontpanels 18
SVERKER 750 18
SVERKER 780 19
4.2Currentsource 20
4.3Timer 21
4.4Tripindicator 22
4.5Display 22
4.6Ammeter & voltmeter 23
4.7 AC Voltagesource 23
SVERKER 750 23
SVERKER 780 23
4.8Auxiliaryvoltagesource 24
4.9 Make/Break contact 24
4.10Resistor set andcapacitor 25
4.11 Power supply 25
4.12Other 26
5 Making settings on the display 28
5.1Introduction 28
5.2Buttonfunctions 29
5.3Directionindicator 29
5.4Themenusystem 30
5.5Testmode 31
5.6Injection 32
5.7Ammeter 32
5.8Voltmeter 33
5.9 O , (p, W , VA...(Extrameasurement) 33
5.10Timer 34
5.11Display 34
5.12 Off delay 35
5.13 0-Level filter 35
5.14 Save/Recall 36
5.15Remotecontrol 36
5.16Language 37
5.17 SW37
6How to operate
SVERKER 38
6.1 General 38
6.2Injectingcurrent - General rules 38
Output alarm 38
6.3Selectingthecorrectcurrentoutput 39
6.4Measuringcurrent 39
6.5Setting the desiredcurrent 40
6.6Findingpick-upanddrop-outlimitsforover
current/voltage/other entityrelays 41
6.7Findingpick-up and drop-outlimitsforunder
current/voltage/other entityrelays 42
6.8Measuringoperatingtimesforovercurrent/
voltage/otherentityrelays 43
6.9Measuringoperatingtimesforunder(cur-
rent/voltage/other entity)relays 44
6.10Measuringvoltage 44
?m SVERKER 750/780
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6.11Obtainingthecorrect phase anglewhen
two or more AC outputs are beingused..45
6.12Generatinghighervoltages 45
6.13Setting an auxiliaryvoltage 46
6.14Testingvoltagerelays - bothpre-fault and
fault voltages 46
6.15Changingthecurrentandvoltage phase dif-
ference 47
SVERKER 750 47
SVERKER 780 47
6.16Measuring the phase angle 48
6.17Measuringexternal cycle time(measure-
mentnotinitiated bySVERKER)49
6.18Measuring Z,R R,X,VA,VAR and COS (p.49
6.19Plotting a magnetizationcurve 50
6.20Testing an automaticrecloser 50
6.21Measuringthe trip pulselength 51
6.22Injectingcurrent - Externalstart 52
7 Application examples
54
7.1Testingvoltagerelays 54
7.2Testingover-currentrelays 55
7.3Testingdirectionalover-currentrelaysystems
ordirectionalground-fault(earth-fault)
relaysystems 57
SVERKER 780 57
SVERKER 750 58
7.4Testingpowerrelays 60
7.5Testingundervoltagerelays 61
Testhook-upand initial settings 61
7.6Testingmotoroverload releases andovercur-
rent cut-outsthatgrant/denystartingper-
mission 63
7.7Testingfrequencyrelays 63
8 Troubleshooting
64
8.1 General '.64
8.2Displayed values 64
8.3Error messages etc65
9 Specifications
66
Specifications SVERKER 750/780 66
Specificationsextended 67
Maximumloadtimesfordifferentcurrents.... 67
Thevoltageoutputs of thecurrentsource 67
Separate AC voltagesource 67
Auxiliary DC voltageoutput 67
Inputs 68
Make/Break contact 68
Measurementsection 68
Extrameasurements 69
Other 69
Index 72
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SVERKER 750/780

Safety
Symbols onthe instrument
Caution,refertoaccompanyingdocu-
ments.
Protectiveconductorterminal.
WEEE, Waste ElectricalandElectronic
Equipment. Please utilizeyourlocal
WEEE collectionfacilitiesinthedispo-
sition of thisproductandotherwise
observeallapplicablerequirements.
Safety instructions
A
A
Important
Read andcomplywiththefollowingin-
structions.
Always complywithlocalsafetyregula-
tions-
Warning
First of all,connectprotectiveearth
(ground). Use thegreen/yellowcable.
Never connectthe SVERKER 750/780 toan
externalvoltage if theprotectiveearth
(ground) is notconnected.
Always usesafetyconnectingleads.
Always turnthe SVERKER 750/780off
beforeconnecting.
Generated voltagesandcurrentsmay be
harmful to theoperator or the device
undertest.
The SVERKER 750/780should be operated
only fromthetype of powersource indi-
cated on itsnameplate.
The SVERKER 750/780 is equippedwith
amainsplughaving a third (earthing,
grounding) pin.Thisplugwillonlyfitinto
anearthing/grounding-typepoweroutlet.
The SVERKER 750/780mustnot be used in
other ways thanstated by themanufac-
turer.
Never spillwater or otherliquid ofany
kind on the SVERKER 750/780.
Unplugthe SVERKER 750/780from the
walloutletbeforecleaning. Usea damp
cloth forcleaning. Do not use liquidclean-
ers or aerosolcleaners.
Donot use auxiliaryequipmentnot
3 SVERKER 750/780
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1SAFETY
recommended by the SVERKER 750/780
manufacturersincethismay cause haz-
ards.
Donotattempt to servicethe SVERK-
ER 750/780yourself.Opening or removing
coversmayexposeyou to dangerousvolt-
ageandotherhazards.
Important
Foraddedprotectionduring a lightning
storm, or whenthe SVERKER 750/780
isleftunattendedandunusedforlong
periods of time,unplug it fromthewall
outlet. Thiswillpreventdamagedue to
lightning and powerlinesurges.
Themaximumloadtimesdepends onthe
usedcurrentvalue, see chapter 9 under
Specificationsextended.
If,forsomereason,youneed to return
your SVERKER 750/780, please useei-
ther theoriginaltransportbox or one of
equivalentstrength.
CD0795IE
ZP-CD03E SVERKER 750/780

2 INTRODUCTION
Introduction
2.1 Applications
SVERKER 750/780 is intendedprimarilyfortesting
relayprotectionequipment,but it canalso be usedfor
manyotherpurposes.Virtuallyallsingle-phaserelay
protection equipmentcan be tested,and SVERK-
ER 750/780canalsotestthree-phaserelayprotection
equipment thatcan be testedphase by phase.Moreo-
ver,manyrelayprotectionsystemsthatrequirephase
shifting canbe tested.
Items that canbe tested using
SVERKER 750/780include:
Efficiencytests
Polarity(direction)tests
Type of relay
ANSI standard
code
Overcurrentrelay
50
Inversetimeovercurrentrelay 51
Undercurrent relay
37
Groundfaultrelay SON,51N
Directional overcurrentrelay
67
Directional groundfaultrelay 67N
Overvoltagerelay
59
Undervoltagerelay
27
Directional powerrelay 32
Power factorrelay 55
Differential protection
(differential circuit)
87
Distanceprotection
equipment (phase by phase)
21
Negativesequenceovercurrent
relay
46
Motor overloadprotection 51/66
Automatic reclosingdevices 79
Tripping relay
94
Voltageregulatingrelay
Underimpedancerelay 21
Thermalrelay
49
Time-delayrelay
Frequencyrelay (SVERKER 780) 81
Other applications
Plotting excitationcurves
Current andvoltage transformation ratiotests
Burdenmeasurementforrelayprotectionequipment
Impedancemeasurement
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2.2 Design and construction
Thecurrentsource built into SVERKER canprovide
0-10 A, 0-40 A, 0-100 A, 0-250 V ACor
0-300 V DC.Timingandgeneration(output)can be
carriedoutsimultaneously. When therelayprotection
equipment trips, bothoutputandtiming are inter-
rupted.
Note The current output depends on the burden of
the relay (circuit). This means that it is possible
to get high output currents, over the maxi-
mum measurement range of 250 A.
There is also a separate built-in AC voltagesource to
supplytherelayvoltageinput.
A20-220 V DC voltagesource is used to provide
auxiliary voltage.
Thequality of theoutputsignal is depending onthe
quality of theinputvoltage. If themainvoltage is
distorted theoutputsignalwillalso be distorted.
However, the AC voltagesource inSVERKER 780 is
fully synthesizedbytheinstrumentsitselfandthere-
foreindependent of themainsinputvoltage.
SVERKERis equippedwith a timer,ammeterand
voltmeter, andtheseinstrumentscanalso be used to
indicateresistance,impedance, phase angle,power
andpowerfactor.Moreover,theseinstrumentscan be
usedformeasurements in externalcircuits.
Aset of resistorsand a capacitor (SVERKER 750) are
provided, andtheycan be connectedintothecircuits
beingtested to provide phase shifts,fineadjustments
andthelike.
Amake/breakcontactcan be used to synchronize
othercircuitswithteststhatarebeingconducted.
SVERKER settingsare made usingknobsandother
controlsonthecontrolpanel.Numerousotherset-
tings can be made viathedisplaywindow built into
thecontrolpanel.
CD0795IE ZP-CD03E SVERKER 750/780

3 DESCRIPTION
Description
3.1 General
7 Auxiliary voltagesource
Thischapterpresents a generaldescription ofSVERK-
ER andthe types of functions it performs. For more
8
Make/Break contact
Thischapterpresents a generaldescription ofSVERK-
ER andthe types of functions it performs. For more 9 Resistor
setand capacitor
detaileddescriptions,please see Chapters 4 and 5.
10 Power supply
11 Computerinterface
SVERKER 750 control panel
12 Startswitch
13 Mainknob
T°~*r|' • • • •
SVERKER 780 control panel
1
Currentsource
2
Timer
3 Trip indicator
4 Display
5 Ammeter & voltmeter
6 ACvoltagesource
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3DESCRIPTION
3.2 Current source
Themainsource built into SVERKER can pro-
vide0-100 A, 0-40 A, 0-10 A, 0-250 V ACor
0-300 V DC, depending on whichoutput is used. As
arule,thiscurrentsource is used to providesimulated
sudden-changefaultconditions forthe objectbeing
tested.
Values areset using the mainknob on the control
panel.Current,voltage and othersettingsappear
on the display. See section headed "Ammeter and
voltmeter".
Generation is turned on andoff using the startswitch
which has fourpositions
Indication State Used to
ON+TIME Currentsource is
activated until the
objectbeingtested
hasoperated. The
time is thendis-
played,whereupon
SVERKER returns
automatically tothe
OFF mode*.
Measure operatingtimes
for over-current/voltage/
otherentityrelays.
OFF
Currentsource is
turned off.
Turn offthe current
source.
ON Currentsource is
turned on (acti-
vated).
Make settings and find
pick-up / drop-out limits.
OFF+TIME Currentsource is
turned off. When
theobjectbeing
tested has oper-
ated, the time is dis-
played,whereupon
SVERKER returns
automatically tothe
OFF mode.
Measure operatingtimes
for under-current/volt-
age/otherentityrelays.
*) When trip occurs,generation is interruptedafter a number of
mainscycles.Thisdelaysimulates the circuitbreaker'sbreaking
time. The length of delay can besetby the user.
Anindicatorlamp to the right of theset of resistors
islightedduringgeneration.Generationstart-up is
synchronizedwith the mains,thuseliminatinginaccu-
racies in the testresultsattributable to the instant at
which the startswitch is activated.
There area number of differenttypes of generation,
andthey are selected via the displaywindow(Chapter
5)
Type of generation Explanation
Generationthatcontin-
ues until the objectbeing
testedtrips
Generationcontinues until the
timer stops.
Momentary(manually-
controlled) generation Thispermits
the user to provide
brief, manually-controlledgenera-
tion that is interruptedimmediately
when the startswitch is released.
Time-limited generation Here, you canseta maximumtime
for generation. When it expires,
generation is interruptedimmedi-
ately.
Restarted generation (used
to testautomaticreclosing
devices)
You canset the SVERKERso that
generationwill be restarted(start
again)when the timerstartinput
isactivated.Thisfeature is used to
testautomaticreclosingdevices.
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