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Product Range 2017
Meter Test Systems Instrument Transformer Test SystemsPrecision Laboratory SystemsSoftware
Stat
iona
ry S
yste
ms
CT/V
T Te
st S
yste
ms
Port
able
Sys
tem
s
Product-range-2017_EN_V100
Status: 6 March 2017
Subject to alteration.
© Copyright 2017 ZERA GmbH
ZERA GmbH
Hauptstraße 392
53639 Königswinter
Germany
Tel.: +49 (0) 2223 704-0
Fax: +49 (0) 2223 704-70
E-mail: [email protected]
www.zera.de
Table
of
Conte
nts
Table of contents• Meter Test Systems - Portable Devices ........................................................................................ 5• Reference Meters ..........................................................................................................................6• MT3000 .........................................................................................................................................6• MT365 ............................................................................................................................................ 7• MT310 ............................................................................................................................................ 7• MT30 .............................................................................................................................................. 7• Test Systems ..................................................................................................................................8• MT78x ............................................................................................................................................8• MT68x ............................................................................................................................................8• Mains Connection Box ZZ8625 .....................................................................................................8• MT680s .........................................................................................................................................9• Quick Connection Cables for Voltage/Current and Power Supply ...............................................9• Voltage and Current Sources ...................................................................................................... 10• MT551 .......................................................................................................................................... 10• MT500/MT400 ........................................................................................................................... 10• Accessories ...................................................................................................................................11• AC Current Clamp MT346x ..........................................................................................................11• AC Current Clamp MT3416/MT3417 ............................................................................................11• AC Current Clamp MT3403 ..........................................................................................................11• Flexible AC Current Measuring Sensors MT3470/MT3471/MT3472 ..........................................11• Temperature Sensor .....................................................................................................................12• Quick Connection Cables .............................................................................................................12• Transport Cases and Bags ............................................................................................................12• Trolley Systems ............................................................................................................................12• Scanning Head TK118-05 ............................................................................................................ 13• Thermal Printer Set ..................................................................................................................... 13• Meter Test Systems – Stationary Systems.................................................................................. 15• MTS Series Power Source Systems ............................................................................................. 16• Power Source System Components .............................................................................................17• Frequency Generator ...................................................................................................................17• Reference Meter ...........................................................................................................................17• Amplifiers .................................................................................................................................... 18• Test Bench Components .............................................................................................................. 19• Scanning Heads ............................................................................................................................21• Current and Voltage Transformers .............................................................................................. 22• Additional Components .............................................................................................................. 23• Scanning Head Suspension ........................................................................................................ 25• Quick-Connect Adapters .............................................................................................................26• Different Types of Test Benches .................................................................................................. 27• Side Cabinet ................................................................................................................................ 28• Semi-Automatic Test Systems ....................................................................................................29• Instrument Transformer Test Systems ........................................................................................ 31• Stationary ITTS ........................................................................................................................... 32• Mobile ITTS ................................................................................................................................. 33• CT/VT Testing Components ......................................................................................................... 35• Constant Current Sources .......................................................................................................... 37• Precision Laboratory Systems ....................................................................................................39• PPCS – Precision Power Calibration System .............................................................................39• Comparator COM5003 ................................................................................................................40• Comparator COM3003 ................................................................................................................ 41• Reference Meter RMM3006 ........................................................................................................ 41• Software for Controlling, Visualization and Simulation ............................................................43
32
Further information on the products and product lines presented in this catalogue can be found in the respective leaflets.Visit our website: www.zera.de.
54
Port
able
Mete
r Test
Syste
ms
Meter Test Systems - Portable DevicesPortable meter test systems from ZERA encompass reference meters, primary standards, test systems as well as current and power sources. All measurements and tests can be performed according to IEC standards.Reference meters with accuracy classes of 0.2 to 0.02 are commonly used for testing meter installations and for ensuring error limit compliance of electric meters on site. With the accuracy class of < 0.01, the primary standard is used for testing meters and reference meters and whenev-er very high accuracy is of particular importance. Test systems are reference meters with an integrated source. You can choose between systems with a current source or a current and voltage source. Test systems are especially useful if you need user-defined values for current and voltage when testing meter installations, but only wish to use one device.
Test systems with an integrated source
Voltage and current sources
Reference meter
Refe
rence M
ete
r
MT365• Accuracy class 0.05• Colour display• Functions, amongst others:
- Vector and curve display - Error measurement - Harmonic measurement - Service function - Automatic operation (as option)
• Also available with accuracy class 0.1 as MT360• MT360/MT365 also available as CAT IV device
76
Accuracy class 0.02 and 0.05
MT3
00
0 R
efer
ence
Met
erM
odul
ar d
esig
nM
T30
00
wit
h ac
cess
orie
s in
cas
e
Reference Meters
MT3000• Accuracy class 0.02 and 0.05• Colour display• Modular design• System upgrade at any time• Unique long-term and temperature stability of the
measuring modules• No additional error for reactive power measure-
ment• Current measurement up to 300 A using er-
ror-compensated AC-current clamp• Ratio test by simultaneous measurement of both
primary and secondary currents in instrument transformer meter systems using six measuring channels
• Testing of voltage, current and power transducers• Functions, amongst others:
- Harmonic measurement - Error measurement - Burden measurement - U/I transformer test - tm/te transmitter test - Long-term measurement - Selective power measurement - Data readout meter - Automatic operation (as option)
Refe
rence m
ete
r
MT30• Accuracy class 0.2• Functions, amongst others:
- Actual values - Error measurement - Vector and curve display - Harmonic measurement
• Also available as single-phase device MT10• MT10/MT30 also available as CAT IV device
MT310• Accuracy class 0.1• Functions, amongst others:
- Actual values - Vector and curve display - Error measurement - Harmonic measurement - Burden measurement - I transformer testing (as option)
• Also available with accuracy class 0.05 as MT320• MT310/MT320 also available as CAT IV device
MT3
65M
T310
/MT3
20M
T10
/MT3
0
Single or three-phase
Accuracy class 0.1 or 0.05
Single modules can be combined
Test
Syste
ms
Test
Syste
ms
98
Test Systems
MT78x• Accuracy class 0.1• Colour display• Three-phase fully automatic test system with
integrated current and voltage source• Verification of the load conditions on metering
installations• Current generation from 10 mA up to 120 A• Voltage generation from 40 V up to 500 V• Functions, amongst others:
- Error measurement - Vector display - Harmonic measurement - Automatic operation - Selective power measurement (as option)
• Also available with accuracy class 0.05 as MT786• Measurement category CAT IV can be realized
with a mains connection box (see below)
MT7
81/M
T786
MT6
81/M
T686
ZZ86
25
Integrated current and voltage source
Available with trolley - see page 12
MT68x• Accuracy class 0.1• Colour display• Three-phase fully automatic test system with
integrated current source• Verification of the load conditions on metering
installations• Current generation from 10 mA up to 100 A• Functions, amongst others:
- Error measurement - Vector display - Harmonic measurement - Automatic operation - Selective power measurement (as option)
• Also available with accuracy class 0.05 as MT686• Measurement category CAT IV can be realized
with a mains connection box (see below)
MT680s• Accuracy class 0.1• Colour touchscreen display• Single-phase test system with integrated current
source• Testing of energy meters for accuracy classes 1 and 2
in 2-wire circuits• Current generation from 10 mA up to 120 A• Functions, amongst others:
- Error measurement - Vector display - Freely programmable load point setting for
current generation - Automatic operation - Selective power measurement (as option)
• Measurement category CAT IV can be realized with an auxiliary connector (see below)
MT6
80s
Test
Sys
tem
Qui
ck c
onne
ctio
n ca
bles
MT680s in comparison to a single-phase meter
Quick Connection Cables for Voltage/Cur-rent and Power Supply• Avoid connection errors on the device side• Fast and easy mains connection via test voltage• Can be used in combination with MT680s• Connecting the quick connection cable fulfils the
requirements of measurement category CAT IV
Mains Connection Box ZZ8625• For power supply via the metering voltage• Can be used in combination with MT68x or MT78x• Connecting the mains connection box fulfils the
requirements of measurement category CAT IV
1110
Volt
age a
nd C
urr
ent
Sourc
es
Voltage and Current Sources
MT551• Three-phase current and voltage source• Current generation up to 120 A• Voltage generation up to 500 V• 10.4” touchscreen• Individual load point programming in four quad-
rants• Automatic control via MT3000 or MT365 possible• Energy dosage• Available interfaces: RS-232 and USB
MT500/MT400• Three-phase voltage* and current source• Current generation from 4 mA up to 12 A• Voltage generation* from 40 V up to 300 V• Adjustable power factors• Individual load point settings• Synchronization of the test currents with the ex-
isting test voltage phases of the meter under test (only MT400)
• Functions, amongst others: - Actual values - Vector display
* only available for MT500
MT5
51 S
ourc
eM
T50
0 S
ourc
eM
T40
0 C
urre
nt S
ourc
e
Accessori
es f
or
Port
able
Mete
r Test
Equip
ment
MT3
416/
MT3
417
and
MT3
403
MT3
470
/MT3
471/
MT3
472
Accessories
AC Current Clamp MT346x• Current measurement up to 120 A• Measurement range: 5 mA … 120 A• Clamp diameter: 16 mm• MT3460 for MT30, MT3x0, MT36x,
MT68x and MT78x• MT3465 for MT3000• Also available as single-phase clamp
MT3461 for MT10 or MT680s
AC Current Clamp MT3416/MT3417• Current measurement up to 300 A• Suitable for cable diameters up to 53 mm• MT3416 for MT30, MT3x0, MT36x,
MT681 and MT78x• MT3417 for MT3000
AC Current Clamp MT3403• Current measurement up to 1,200 A• Suitable for cable diameters up to 53 mm• Compatible with all portable devices of the MT
series
Flexible AC Current Measuring Sensors MT3470/MT3471/MT3472• Current measurement up to 30,000 A (MT3472)• Current measurement up to 3,000 A (MT3470/
MT3471)• Compatible with all current portable devices of
the MT series
MT3
460
or M
T346
5
12 13
Accessori
es f
or
Port
able
Mete
r Test
Equip
ment
Accessori
es f
or
Port
able
Mete
r Test
Equip
ment
Temperature Sensor• MT3450 for temperature acquisition on-site• Compatible with all portable devices of the MT
series• Temperature indication on MT display
Quick Connection Cables• For voltage and/or current connections• For all devices of the MT series• For safe connection between device and meter
under test• Various designs and phase colours
Transport cases and bags• Aluminium cases for MT devices and accessories;
all sizes• Nylon wheeled bag for accessories with
smooth-rolling wheels and telescopic handle
Trolley Systems• Trolley transportation systems for MT68x or MT78x
with pneumatic tyres or as standard system• Three-stage telescopic handle• Simple snap-lock system allows the device case to
be securely fixed and easily released
Scanning Head TK118-05• Capture of LED pulses from electronic meters• Fixing via suction cup provided or via optionally
available elastic scanning head holder for TK326/TK118
Thermal Printer Set• Prints measuring results on site• Connection via RS-232 interface• The set contains the software option ‘Print’, ther-
mal printer, AC adapter, printer cable, battery pack and thermal paper rolls
Many More Useful Accessories Such As*• Carrying strap for MT10, MT30, MT3x0• Display protector for MT3xx/400/500• Start-stop push button for signal entry • Several software options depending on the device
such as I-transformer test, selective power mea-surement, etc.
* For further information, see MT product catalogue
Prin
ter s
etSc
anni
ng h
ead
Tran
spor
t cas
es a
nd b
ags
Trol
ley
tran
spor
tati
on s
yste
ms
Ø 180 mm
Standard system
TK118-05 with holder 1
1 Example of use. Meter not included in scope of delivery.
MT3
450
Qui
ck c
onne
ctio
n ca
bles
Sta
tionary
Mete
r Test
Syste
ms
19” undertable design for slide-in units e.g. SES330,CCM1001, DS421 or PC in industrial housing
Power source system for generat-ing the test values, e.g. MTS320Convenient, finely adjustable
scanning head
DS3xx devices and various addi-tional modules
1514
Meter Test Systems – Stationary SystemsStationary meter test systems from ZERA are conceived for economical testing of all types of meters as well as static meters of class 0.2. The EPZ wide-range reference meter of class 0.02 is used as the working standard. If a higher accuracy is required, the EPZ can be replaced by a comparator of accuracy class 0.01. All measurements can be performed according to the required IEC standards. The modular system allows optimized and customer-specific configuration for both hardware and software. A system upgrade is possible at any time.
Pow
er
Sourc
e S
yste
m C
om
ponents
Power Source System Components
Frequency Generator
FG301• Frequency generator FG301 is the central unit for
test value generation• Generates the reference variables for the digital
control of the amplifier units• Carries out the control of the test values and
controls changeover operations during the test procedure
COM3003• Optionally, the COM3003/1003 comparator can
replace the EPZ303/EPZ103 reference meter• Accuracy class 0.008• Further details can be found on p. 40
COM5003• Optionally, the reference meter EPZ303/EPZ103
can be replaced by the COM5003 comparator• Accuracy class 0.005• Further details can be found on p. 41
Reference Meters
EPZ303• Wide-range reference meters EPZ303 and EPZ103
as working standard of meter test systems• In addition to a power-proportional frequency as a
reference signal for measurement electronics, also provides momentary test actual values as mea-sured values for closed test-value control loop on an external monitor
• Accuracy class 0.02
17
Pow
er
Sourc
e S
yste
ms
Power Source Systems - MTS series
MTS Series Power Source SystemsThe MTS product series is based on digital switch-mode amplifier modules and allows the combination of different amplifiers with the FG301 function generator to form an MTS power source system configured for your testing needs.ZERA provides three-phase sources MTS301, MTS310, MTS320 and MTS340 (for 1 to 40 test positions) and sin-gle-phase sources MTS110 and MTS140. All source systems of the MTS3xx and MTS1xx series are also available with castor wheels.
16
MTS340 MTS320 MTS140
Som
e ex
ampl
es o
f our
pow
er s
ourc
e sy
stem
s
FG30
1EP
Z30
3CO
M30
03
COM
500
3
Accuracy class 0.02
Accuracy class 0.008
Accuracy class 0.005
Test Bench Components
Test
Bench C
om
ponents
SES330• Control unit SES330 serves as a voltage supply for
the DS3xx modules as well as the RS-232 interface for the PC to the system bus
• Control is provided by the FG301 frequency gen-erator
• Only required if DS3xx modules are used
The following DS3xx error calculators are used per test position:
DS301• Additional error display• Input/output for testing of S0 transmitter or
receiver• tm/te demand time measurement• Testing of a pulse transmitter or receiver and
parallel data communications
DS312• Can be used as an enhancement for error calcula-
tors DS301, DS321• Input/output for testing of S0 transmitter or
receiver• Interface multiplexer for communication with
the device under test via RS-232 (IR), RS-485 or M-bus
DS321• Can be used as an enhancement for error calcula-
tor DS312• Input/output for testing of S0 transmitter or
receiver
19
Am
plifiers
, P
ow
er
Sourc
e S
yste
ms
VI201/VI202• Test current amplifier for AC output currents up to
120 A • Max. output power: 2,000 VA (VI201)• Max. output power: 2,800 VA (VI202)• Optionally, up to 160 A (VI201)
Amplifiers
VI221/VI222• Test current amplifier for AC output currents up to
120 A• Max. output power: 600 VA (VI221)• Max. output power: 1,200 VA (VI222)
18
160
A/2
00
0 V
A12
0 A
/28
00
VA
120
A /6
00
VA
120
A /
120
0 V
A
VUI301• Combined single-phase current and voltage ampli-
fier VUI301 for output voltages up to 320 V (AC) and output currents up to 120 A (DC up to 12 A)
• Max. output power voltage unit: 30 VA• Max. output power current unit: 200 VA• Used in MTS301 (single-position system)
Other customer requirements on request.
320
V/1
20 A
VU211• Test voltage amplifier VU211 for AC output voltages
up to 480 V• Max. output power: 1,000 VA
(optionally, 1,500 VA)
VU221• Single or three-phase test voltage amplifier VU221
for output voltages up to 320 V• (AC and DC)• Max. output power: 500 VA
480
V/1
,00
0VA
320
V/5
00
VA
Cont
rol u
nit
DS3
01
DS3
12D
S321
Scanning Heads
Test
Bench C
om
ponents
The following scanning heads are used per test position:
TK325• Scanning head TK325 to scan rotor discs and LEDs
on electric meters• Detects each individual switching edge of a pulse • and allows the automatic starting and no-load
testing on ZERA test systems• For use with advanced scanning head suspension• Can be combined with all DS devices
TK117• Scanning head TK117 is for data communication
between the electric meter and the test system• Connection e.g. via error calculator DS301• Can only be used with electronic meters• Can only be used in combination with DS301 and
DS311
TK326• Scanning head TK326 for scanning rotor discs and
LEDs on electric meters• Detects each individual switching edge of a pulse • and allows the automatic starting and no-load
testing on ZERA test systems• Is used with a simple scanning head suspension• Can be combined with all DS devices
21
Test
Bench C
om
ponents
DSA400• LCD display unit DSA400 displays the error
values during the test procedure• Can be combined with DS421
DS421• The DS421 multi-position error calculator is
designed as a 19” slide-in unit for testing up to 20 electric meters
• Can only be combined with DSA400/DSA401
CCM1001• Measuring and connecting adapter CCM1001 to
check the test circuits for U-I-shorts before and during the test procedure
• Communication via WinSAM
20
Erro
r Cal
cula
tor f
or D
SA4x
xLC
D d
ispl
ayCC
M10
01
* Example of use. Meter not included in scope of delivery.
Scan
ning
ele
ctro
nic
met
ers
*TK
326
wit
h el
asti
c ho
lder
*In
frar
ed s
cann
ing
head
*
Additional Components
Test
Bench A
dditio
nal
Com
ponents
23
Current and Voltage Transformers
Test
Bench C
om
ponents
ICT12x• Three-phase error-compensated precision
transformers of the ICT series for generating an isolated test current, e.g. for testing three-phase meters with a closed current and voltage connection
• For use as a stand-alone* or built-in device• Integrated self-protection• Communication via WinSAM• One ICT serves for one test position
* not ICT127 and ICT129
ICT123/ICT129• Max. current range 120 A• Burden measurement/breaker test (ICT123)
ICT125/ICT126• Max. input current 160 A• Max. output current 160 A (ICT125; 1:1)• Max. output current 320 A (ICT126; 1:2)• Burden measurement/breaker test
ICT127/ICT128• Max. input current 100 A• Max. output current 120 A (ICT127; 1:1/10:1)• Max. output current 240 A (ICT128; 1:2)• Burden measurement/breaker test (ICT127)• High accuracy < 12 A (ICT127)• Compact design allows installation in
standard test benches (ICT128)
MSVT• Multi-secondary voltage transformer
MSVT for galvanic isolation of the test voltage in single-phase meters
• The MSVT supplies either 10 or 20 test positions
22
ICT1
23/I
CT12
9IC
T125
/ICT
126
ICT1
27/I
CT12
8U
p to
20
sin
gle-
phas
e te
st p
osit
ions
Automatic Rotor Mark Positioning AMV• Built-in module AMV302 for automatic rotor mark
positioning on meters• Beneficial before STARTING or NO LOAD test• Position-referenced voltage shut-off• Suitable for voltage testing up to 320 V
Light Curtain• Light curtain for increased safety and as a supple-
mental emergency-stop element• Suitable for 2 to 40 test positions• Colour marking of the light strip and status light• Rear and side Plexiglas covers for improved acci-
dental contact protection• Light curtain controlled via WinSAM
AMV
Mod
ule
AMV3
02
Ligh
t cur
tain
for i
ncre
ased
saf
ety
Colour marking of the light strips
Scanning Head Suspensions
Scanning Head Suspension• Convenient, ball-bearing mount for scanning
heads, adjustable in all directions• Stops for safe guidance of the scanning head• Quick height adjustment and fine adjustment for
correct positioning of the scanning head in front of the meter
• With single-position or multiple-position suspen-sion
• Measuring system enhancements are possible at any time
• Usable with scanning head TK325
Basic Scanning Head Suspension• Functional scanning head suspension, adjustable
in all directions via folding mechanism• The enhancement options for this system are
limited• Usable only with scanning head TK326
Rotating Meter Racks• Rotating meter racks for fast and reliable position-
ing of meters with different types of connections• Meter rack with two or three different connection
options• Suitable for single and multiple-position test
systems• Usable with scanning head TK325• Further versions available on request
25
Test
Bench S
cannin
g H
ead S
uspensio
ns
24
DR2791• External field coil DR2791 to generate a magnetic
field in combination with voltage amplifier VU221-02
• Tests if the magnetic field disturbs the measurement accuracy of the meter
• Also available with meter rack/quick connection on request.
ZZ8292• Connection unit for half-wave operation to sepa-
rate test currents into positive and negative half waves.
• Available as stand-alone device or integrated into a system.
Also available with meter rack
Integration into test
bench possible
DR2
791
ZZ82
92
Scan
ning
hea
d si
ngle
-pos
itio
n m
ount
Rota
ting
met
er ra
cks
for t
wo
or th
ree
posi
tion
sFo
ldin
g m
echa
nism
ET118• Wireless terminal ET118 is used for entry and
transfer of meter-specific data, e.g. serial no., property no. or counter states to the WinSAM software
• Scanning of 2D codes, e.g. on highly complex data-matrix meters
• Data transfer to PC via Bluetooth
ET11
8 te
rmin
al w
ith
dock
ing
stat
ion
Test
Bench A
dditio
nal
Com
ponents
Different Types of Test Benches
Diffe
rent
Types o
f Test
Benches
27
Multiple-Position Test Bench
Test bench with:• 10 test positions• 19” undertable unit• Basic scanning head suspension
• Standard test benches with 5, 10, 20 or 40 test positions
• Further versions available on request
Special Designs
Example:• Test bench with 28 test positions for
single-phase meter testing of 14 meters simultaneously
• Pneumatically operated protective cover with integrated scanning heads for safe placement of meters while performing a test procedure
• MSVT
• Further versions available on request
Single-Position Test Bench
Test bench with:• One test position• DS3xx devices• Advanced scanning head suspension
26
Exam
ple:
10
-pos
itio
n te
st b
ench
Hei
ght-
adju
stab
le p
rote
ctiv
e co
ver
Sing
le-p
osit
ion
test
ben
ch
Exam
ple
of a
qui
ck-c
onne
ct a
dapt
erZZ
8468
-02
adap
ter w
ith
IR in
terf
ace
120
A a
dapt
er fo
r soc
ket t
ype
met
ers
1 2 3 4 5 6 7 8 9 10 11 12
Quick-Connect Adapters
• Minimize preparation and connection time for meter testing
• Avoid incorrect meter connections which can lead to destruction of the meter under test or the measuring system.
• Continuous currents up to 120 A• Connect all auxiliary circuits, test voltages and
test currents via one adapter• Special adapters for many different meter types
Adapters for Different Requirements• 60 A/80 A meters• High current meters (100 A/120 A)• MS 2020 basic meters• Sym² meters• Socket-type meters (ANSI)• CT operated meters• EHz meters• Single- or three-phase meters• Further versions available on request
Quic
k-C
onnect
Adapte
rs
28
Diffe
rent
Types o
f Test
Benches
Tunnel and Trolley System• A stationary tunnel system is connected to the
power source• The respective trolley system is connected to the
test bench via plug connections• Interlock mechanism for fixing the trolley in the
tunnel system• The test bench is equipped with scanning head
suspensions and emergency-stop push buttons
Trolley System • Trolley system with 20 test positions• Flexible placement of the meters under test
using a second trolley which saves set-up time• Trolley system is equipped with a quick-connect
strip for meters
Side Cabinet• Side cabinet e.g. for measuring and connecting
adapter CCM1001, laboratory standard panel for absolute testing, MSVT and error calculator DS421 or control unit SES330
Qui
ck in
stal
lati
on v
ia p
lug-
in c
onne
ctio
nsFl
exib
ility
wit
h tr
olle
ysSi
de C
abin
etSafe guidance on the floor
29
Auto
matic T
est
Syste
ms f
or
Mete
r M
anufa
ctu
rers
Semi-Automatic Test Systems • Semi-automatic functional or quality testing of
meters• Versions for 1, 3, 6 or 9 test positions• Manual loading and unloading of the devices under
test, fully automatic test procedure• Drawers for alternating loading• No downtime for changing the devices under test• Camera system• Magnetic field testing• Single-position control• Customer-specific software• Meter-specific contact arrangement and communica-
tion
Automatic Test Systems • Automatic function test• ZERA test systems can be fully integrated in cus-
tomer production lines.• Meters can be transported to the next test proce-
dure via conveyor belts.
Sem
i-aut
omat
ic fu
ncti
onal
test
Sem
i-aut
omat
ic q
ualit
y te
stAu
tom
atic
test
sys
tem
Detail of test position
Instr
um
ent
Tra
nsfo
rmer
Test
Syste
ms
3130
Instrument Transformer Test SystemsStationary and mobile instrument transformer test systems (ITTS) by ZERA have been developed for the testing of current transformers (CT) and voltage transformers (VT). Stationary test systems are available for both manual and automatic operation. Instrument transformer testing is used for accuracy testing including polarity check and demagnetization of current and voltage transformers in medium, high and extra-high-voltage grids according to IEC standards 61869-2, 61869-3, 61869-7 and 61869-8 (old: 60044-1, 60044-2, 60044-7, 60044-8 and 61850-9-2).
Standard/High voltage transformer test system SVT/HVT
Mobile current transformer test system
Voltage regulating transformer VRT for generating the required voltage
Stationary, automatic current and voltage transformer test system
Standard current module SCM
Sta
tionary
Instr
um
ent
Tra
nsfo
rmer
Test
Syste
ms
32
Stationary ITTS• Testing of voltage/current transformers
(low, medium and high voltage)• Accuracy test, polarity check, interturn insulation
test and demagnetization • CT one-by-one testing• Components used, amongst others:
- Regulating transformer (variac) - ESVB200/WM3000U - ESCB200/WM3000I - High-current generating transformer
GCT6000* - Standard current transformer SCT6000* - High-voltage generating transformer HVT130* - Standard voltage transformer SVT100*
* other customer requirements on request
VRT36
GCT6000 SCT6000
Detail of the CT under test connected at the secondary side.
HVT130
SVT100
VRT
— V
olta
ge R
egul
atin
g Tr
ansf
orm
erH
igh-
Curr
ent G
ener
atin
g an
d St
anda
rd
Curr
ent T
rans
form
erEx
ampl
e: C
T te
stin
g fr
om 4
,00
0 A
to 6
,00
0 A
Mobile ITTS• Testing of current and voltage transformers in
medium, high and extra-high-voltage grids• Accuracy test• Polarity check• Demagnetization • Components used, amongst others:
- Voltage regulating transformer VRT - SCM4000-120 (see page 35) - WM3000I - ESCB200 (see page 35)
Mobile Instr
um
ent
Tra
nsfo
rmer
Test
Syste
ms
VRT• Voltage Regulating Transformer VRT for supply of
the high-voltage or high-current transformer with variable voltage for testing of the CTs/PTs
33
Set-
up fo
r hig
h-vo
ltage
mea
sure
men
tSe
t-up
for C
T/VT
test
ing
Rem
ote
cont
rol
Volta
ge g
ener
atio
n
Voltage unit Current unit
VRT unit
Mobile ITTS• Testing of current transformers in medium-volt-
age, high-voltage and extra-high voltage grids• Accuracy test• Polarity check• Demagnetization • Components used, amongst others:
- Voltage regulating transformer VRT - Standard current transformer SCT - Generating current transformer GCT - Measuring equipment ME
Mobile Instr
um
ent
Tra
nsfo
rmer
Test
Syste
ms
VRTm• Voltage regulating transformer VRT to transform a
fixed input voltage (e.g. 400 V) to a variable output voltage (0 … 400 V)
• The VRT feeds the high-current unit GCT as well as the device under test
• A control panel with all controls for manual opera-tion is placed located on the front
MEm30• The mobile measuring equipment MEm30 is
equipped with - Electronically compensated standard-burden
current transformer ESCB100 - Measuring bridge WM3000I - Mobile PC
34
Mob
ile C
T te
stin
gVo
ltage
regu
lati
ng tr
ansf
orm
erM
easu
ring
uni
t
Detail of CT testing
CT/V
T T
esting C
om
ponents
35
CT/VT Testing Components
Electronically compensated burden ESCB/ESVB100• Electronically compensated current or voltage
burden ESCB100/ESVB100 for manual testing of current or voltage instrument transformers as per IEC 61869-2/3 (old: 60044-1/2).
• User-friendly menu navigation• 10.4” TFT monochrome display• Standard current burden ESCB100 with fixed levels
as per IEC or ANSI as well as configurable external resistor
• Standard current burden ESVB100 with fixed levels as per IEC or ANSI as well as configurable external resistor
Electronically compensated burden ESCB/ESVB200• Electronically compensated current or voltage bur-
den ESCB/ESVB200 for manual and automatic test of current/voltage instrument transformers.
• User-friendly menu navigation• 10.4” TFT monochrome display• ESVB/ESCB with adjustable steps up to 200 VA
(IEC and ANSI)
Standard Current Module• Standard current module SCM with a combination
of a generating current transformer (GCT) and standard current transformer (SCT)
• Cost-effective and space-saving combination of GCT and SCT (see next page)
• Less wiring because connections between the individual units are unnecessary.
• Saves set-up time because current range selection takes place only once for two devices
* Other customer requirements on request
SCM
300
0-1
20ES
CB20
0/E
SVB2
00
ESCB
100
/ESV
B10
0
CT/V
T T
esting C
om
ponents
36
High-Voltage Generating Transformer HVT• High-voltage generating transformer HVT for
generating the test voltage for accuracy testing of voltage transformers.
Generating Current Transformer GCT• The GCT is for generating the test current for accu-
racy testing of current transformers.
Standard Current Transformer SCT• The values of the CT under test are compared with
the values of the standard current transformer SCT.
Standard Voltage Transformer SVT• Standard voltage transformer SVT for testing
voltage transformers with single and double-pole connections.
WM Measuring Bridges• The WM3000I/U current/voltage measuring
bridges are high-precision comparator units for comparing secondary signals from the instrument transformer (or the digital information of non-con-ventional transformers) with a reference signal supplied by a measurement standard transformer.
• Display of measuring values and control of the test procedure via touchscreen.
• Also available as WM1000I/U exclusively for test-ing conventional instrument transformers
* Other customer requirements on request
GCT
600
0-1
20SC
T60
00
-120
HVT
50SV
T10
0-1
20W
M30
00
U
Consta
nt
Curr
ent
Sourc
es
Constant Current Sources • Moulded Case Circuit Breaker Testing• Thermal and magnetic tripping test• Power circuit breaker, motor circuit breaker
Constant Current Source• Constant current sources are typically used in
routine testing and adjusting equipment• The source provides a defined test current the con-
crete value of which is specified by the character-istics of the respective device under test
Control Unit SES• The communication between the electronic source
and the equipment takes place via the SES control unit
• As desired, either a stand-alone PC or a PLC is connected to the RS-232 interface
37
Mou
lded
Cas
e Ci
rcui
t Bre
aker
Tes
ting
Cons
tant
Cur
rent
Sou
rce
SES3
20
38 39
Pre
cis
ion P
ow
er
Calibra
tion S
yste
m
39
Precision Laboratory Systems
PPCS – Precision Power Calibration System• High precision, traceable calibration of measuring
devices (e.g. comparator)• Lowest measuring uncertainty from < 10 x 10-6 (at
40 to 60 Hz, relative to the nominal value of the apparent power)
• Output voltage from 60 V up to 480 V• Output current from 0.1 A up to 100 A• Used for highly accurate current, voltage and
power calibration• High measuring stability due to ZERA components
that have been proven for many years• High repeatability of the measuring values• Wide range of harmonic generation and accuracy
measurement options
PPCS Software• Windows® based software (precision power sam-
pling system) to control the system• Software controls the device under calibration and
calculates error values and measurement uncer-tainty
• Result will be stored in the PC
Prec
isio
n Po
wer
Cal
ibra
tion
Sys
tem
Prec
isio
n Po
wer
Sam
plin
g So
ftw
are
Comparator COM3003• Comparator• Accuracy class 0.008• AC/DC reference standard• Primary standard, e.g. for metrological institutes
and calibration laboratories• Functions, amongst others:
- Actual value measurement - Vector display - Oscilloscope plot - Harmonic measurement - Error measurement - Reference measurement
• Static and electromechanical power meters or measuring instruments with power proportional pulse output can be tested in the “Error mea-surement” mode. The user can select between pulse input or scanning head input as the mrate (measuring rate) source.
Reference Meter RMM3006• Reference multimeter• Accuracy class 0.02• For testing both ammeters and voltmeters as
well as single-phase and multi-phase power and energy meters
• Measurements of DC components• High accuracy in all measurement modes• Reference standard for metrological institutes• Transfer standard in testing agencies• Functions:
- Actual value measurement - Meter test/accuracy test - Energy comparison measurement
Comparator COM5003• Comparator• Accuracy class 0.005• AC reference standard• Primary standard, e.g. for metrological institutes
and calibration laboratories
• Multifunctional precision technology: - Simultaneous energy measurement in four
measuring modes - Power measurement for alternating energy
directions - Simultaneous error measurement with up to
four DUT pulses - Active impedance compensation at currents
of ≤ 100 mA - Operation via capacitive touchscreen
• Functions, amongst others: - Actual value measurement - Vector display - Oscilloscope plot - Harmonic measurement - Error measurement - Reference measurement
Refe
rence M
ete
r and P
rim
ary
Sta
ndard
Refe
rence M
ete
r and P
rim
ary
Sta
ndard
Accuracy class 0.01Accuracy class 0.005
Com
para
tor C
OM
300
3
Com
para
tor C
OM
500
3H
arm
onic
mea
sure
men
tO
scill
osco
pe p
lot
CR10
0
Erro
r mea
sure
men
tRM
M30
06
40 4141
Interface Converter CR100• Device for integrating the COM5003 in a ZERA
meter test system• Supports communication with various different
interfaces
Software for Controlling, Visualization and SimulationZERA offers a series of software produces as options for simplifying the control of test sequences, visualization and management of measured data or simulating circuit errors. The centrepiece for controlling stationary meter test systems is WinSAM. Data exchange between portable devices and a PC as well as the visualization of data can be realized by MTVis. If you want to control portable devices via PC, your preferred choice would be the SSM3000. CheckCon 3 is for transformer testing and offers not only parameter management for the device under test and evaluation of test results, but also a wide range of individually configurable features.
43
CheckCon 3 | Control software for transformer testing
WinSAM 6 | Control software for stationary systems
MTVis | Visualization and data management software for portable devices
SSM3000| Control software for portable devices
42
Soft
ware
44
Soft
ware
for
Sta
tionary
Mete
r Testing
WinSAM 6• Software for controlling meter test systems• Configuration of test system and system environ-
ment.• Compilation of individual test sequences and data
logs• Integrated test-procedure generator to create
pre-defined test sequences, e.g. according to MID/PTB standards.
• Error detection and display per test position and phase by means of burden measurement
• Breaker test for testing of meters, such as smart meters in every current phase
CheckCon 3• Software for controlling instrument transformer
test systems• Data management of devices under test, test
tables and test results takes place via an inte-grated MS Access® runtime module
• Manual or automatic control of the test proce-dure (hardware dependent)
Modular. Clear. Efficient.
Win
SAM
Important features in the quick-access toolbar
Chec
kCon
Soft
ware
for
Port
able
Mete
r Testing
45
MTVis• Data management software for data communica-
tion between a device of the MT series/COM3003 and a PC.
• Visualization of stored measurement data• Management of customer and meter data• Import and export of Excel® or XML files
SSM3000• Software for controlling portable devices of the
series MT, COM, RMM and EPZ• Automatic device identification via integrated
database• Manual and automatic test procedures• Recorder function for long-term measurement• Storage of all test results to an Access® database
included in delivery• Export of results to Excel®
Software Download at no Charge• Effective immediately, you can download the
MTVis and SSM3000 software from our website at no charge
• www.zera.de/de/service/download
Customer-Specific Software• Customized software solutions available on
request
Vect
oria
l dis
play
MTV
is/S
SM30
00
FMT
Gen
eral
ove
rvie
w o
f mea
sure
d va
lues
