2024年10月28日发(作者：莘嘉云)
SVERKER 750/780
Relay Test Sets
SVERKER 750/780
Relay Test Sets
■■
The engineer’s toolbox for all single phase
relay testing
■■
Stand-alone functionality
■■
Rugged and reliable for field use
Description
The SVERKER 750/780 Relay Test Set is the engineer's
toolbox. The control panel features a logical layout, still
SVERKER 650 users will find it comfortably familiar and will
be able to start work right away.
The SVERKER 750/780 features many functions that make
relay testing more efficient. For example, its powerful
measurement section can display (in addition to time,
voltage and current) Z, R, X, S, P, Q, phase angle and
cos φ. The voltmeter can also be used as a 2nd ammeter
(when testing differential relays for example). All values are
presented on a single easy-to-read display.
You can also test directional protective equipment
efficiantly by means of the built-in variable voltage source.
In SVERKER 780 this has a continuous phase shift function
and adjustable frequency as well. Automatic reclosing
devices can also be tested – just as easily.
Designed to comply with EU standards and other personal
and operational safety standards, SVERKER 750/780 is
also equipped with a serial port for communication with
personal computers and the PC software SVERKER Win.
Since the compact SVERKER weighs only 18 kg (39 lbs), it’s
easy to move from site to site.
Two or more SVERKER units can also be synchronized,
which allows the user to operate a basic 3-phase test set.
Application
Relay Testing
SVERKER 750/780 is intended primarily for secondary testing of
protective relay equipment. Virtually all types of single-phase
protection can be tested. You can also test three-phase protection
that can be tested one phase at a time, and also a number of
protective relay systems that require phase shifting. Moreover,
automatic reclosing devices can be tested.
SVERKER 780 can test voltage relays with a frequency range from
15 Hz up tp 550 Hz.
Examples of what SVERKER 750/780 can test
Overcurrent relays
Inverse time overcurrent relays
Undercurrent relays
Ground fault relays
Directional overcurrent relays
Directional ground fault relays
Overvoltage relays
Undervoltage relays
Directional power relays
Power factor relays
Differential protection (differential circuits)
Distance protection equipment (phase by phase)
Negative sequence overcurrent relays
Motor overload protection
Automatic reclosing devices
Tripping relays
Voltage regulating relays
Underimpedance relays
Thermal relays
Time-delay relays
Frequency relays (SVERKER 780)
ANSI
®
No.
50
51
37
50N, 51N
67
67N
59
27
32
55
87
21
46
51/66
79
94
21
49
81
Other fields of application
■■
Plotting excitation curves
■■
Current and voltage transformer ratio tests
■■
Burden measurement for protective relay test equipment
■■
Impedance measurement
■■
Efficiency tests
■■
Polarity (direction) tests
■■
Injection
■■
Maintained
■■
Injection continues without any time limitation.
■■
Momentary
■■
Injection continues only as long as the button is kept
depressed.
■■
Max. time
■■
Injection stops automatically when the preset maximum
time is reached.
■■
Filtering
■■
When filtering is selected, five successive readings are
averaged. The following can be filtered: Current, Voltage
and Extra items that are measured.
■■
Off delay
■■
The turning off of generation can be delayed after
tripping throughout a specified time interval that is
expressed in mains frequency cycles.
Application example
IMPORTANT!
Read the User’s manual before using the instrument.
Testing the pick-up and drop-out using SVERKER 780
1. Connect as shown in the diagram.
2. Select stop conditions, dry or wet contact.
3. Select HOLD to freeze the current reading.
4. Press button SEL/ A until you get a red light at the
built-in ammeter.
Note: Maximum allowed current through the
separate ammeter used in this connection example is
6 A. The other measurement points do not have this
limitation.
5. Press the MODE button.
6. Use the key ▼ to select Ω, φ, W, VA...
7. Press CHG (Change)
8. Select φ (°, Iref) or (°, Uref) by using the key ▼.
9. Press SEL (Select)
10. Press ESC
11. Set the voltage amplitude with the upper small
knob.
12. Make sure the main knob is set to 0.
13. Turn on the SVERKER output by activating ON using
the start switch ▼.
14. Set the phase-angle. Use the lower knob for fine
adjustment, and the middle knob for step of 90°.
Note: A small current flowing in the circuit is
required to measure the phase angle.
SVERKER 750/780
Relay Test Sets
Testing the operation time
15. Increase the current to 1.5 times the pick-up value.
16. Invoke the ON+TIME state by means of the start
switch. The outputs will now remain turned on until
the protective relay equipment operates.
17. Read the time from the display. Check also the high
current setting using the same procedure.
Testing the pick-up and drop-out using SVERKER 780
Features and benefits
ample) to synchronize
current source on and
1. Set of resistors
two or more SVERK-
off. When time is being
Fine regulation of current
ER units, other external
measured, this is done in
and voltage thanks to the
equipment or to switch
synchronization with the
built-in set of resistors.
the voltage applied to the
timer.
2. Start and stop condi-
protective relay equip-
8. Auxiliary voltage
tions
ment back and forth be-
source
The timer’s start and stop
tween non-faulty and
Provides 20-220 V DC in
inputs respond to chang-
faulty.
two ranges. Equipped
es, voltage or contact
6. Ammeter and voltmeter
with overload protection
closing/openings. The
Current and voltage are
and separated from the
timer’s start input is also
measured by the built-
other outputs. Used fre-
used when testing auto-
in ammeter and voltme-
quently to supply the ob-
reclosing relays, to syn-
ter. Resistance, imped-
ject being tested.
chronize two or more
ance, phase angle, power
9. Status indicator
SVERKER units and to
and power factor can
The timer’s start and stop
start generation with an
also be measured. Read-
inputs are each equipped
external signal.
ings appear on the dis-
with indicator lamps
3. Display
play. These instruments
which, when lighted, in-
Presents time, current,
can also be used to take
dicate a closed circuit
voltage and other entities.
measurements in exter-
(useful for detecting con-
Also used to make set-
nal circuits. The voltme-
tact closings/openings) or
tings, after you enter the
ter can also be used as a
the presence of voltage.
setting mode by pressing
2nd ammeter (when test-
These indicator lamps
button marked MODE.
ing differential relays for
example, using CSU20A).
make it possible (for ex-
4. Freeze function (HOLD)
Current and voltage can
ample) to check circuits
This makes it possible
be displayed either as
before starting a measure-
to measure voltages and
amperes and volts or as
ment cycle.
current as short as a quar-
percentages of a given
10. Timer inputs
ter of a mains-voltage pe-
current or voltage (the
The timer has separate
riod by immobilizing the
present settings of the
start and stop inputs, and
reading on the display.
protective relay equip-
it can be used to mea-
Voltage and current read-
ment for example).
sure both external cycles
ings are frozen when the
timer stops. If the timer
7. Current source
and sequences initiated
does not stop, the read-
Provides 0-250 A AC,
by SVERKER. The mea-
ing present when the cur-
0-250 V AC or 0-300 V DC,
sured time appears on
rent was interrupted is
depending on the output
the display. Each input
frozen on the display.
that is being used. Set-
can be set to respond to
tings are made using the
the presence or absence
5. Make/break contact
main knob. The read-
of voltage (AC or DC) at
Changes state automati-
ings of current, voltage
a contact.
cally when a test is start-
and other entities appear
11. Start switch
ed. Can be used (for ex-
on the display. The start
Controls the turning on
switch is used to turn the
and off of the current
12345678
91
SVERKER 750/780
Relay Test Sets
source and timer. Can be
set to one of four states.
ON+TIME. Starts gener-
ation and timing simul-
taneously. Used to test
relays (...means
current, voltage or some
other entity). Genera-
tion continues a) until the
protective relay equip-
ment operates and stops
the timer or b) until the
maximum time expires
or the start switch is re-
leased if time-limited gen-
eration has been selected.
OFF. Turns off the cur-
rent source, whereupon
generation is interrupt-
ed. ON. Turns on the cur-
rent source in the gen-
erating state. OFF+TIME.
Interrupts generation and
starts the timer simultane-
ously. Used when testing
under ...relays (...means
current, voltage or some
other entity). The timer
is stopped when the pro-
tective relay equipment
operates. When automat-
ic reclosing is to be test-
ed, SVERKER can be set
so that new generation
will start when the timer’s
start input is activated by
the closing command.
12. Computer communica-
tion interface USB
SVERKER is equipped
with a serial port for
communication with per-
sonal computers and
the PC software SVERK-
ER Win.
13. Tripping indicator
Lights when a stop condi-
tion is fulfilled to indicate
operation of the protec-
tive relay equipment. If
the test being conducted
incorporates timing, this
indicator starts to blink
when relay operation oc-
curs.
14. Main knob
Used to set current out-
put from the current
source.
15. AC voltage source
Since the AC voltage
source is separated from
other outputs, it is set in-
dependently of the cur-
rent source. The AC volt-
age source is intended
primarily for the relay
protection equipment’s
voltage input.
SVERKER 750/780
Relay Test Sets
SVERKER Win
PC software for SVERKER 750/780
Specifications SVERKER Win
The SVERKER Win software makes fieldwork easier while
providing neater reports. The SVERKER Win software
enables you to control the SVERKER from a PC. The
SVERKER is connected to the PC’s serial port. Test results
can be reported either directly with table and graph, or
from an external program, e.g. Microsoft® EXCEL.
SVERKER Win enables customised reports in an easy
way. Very useful are the reference graphs, together with
the current/voltage graph presentation for each test point
during the test. The graph can of course be printed out on
the test report if you like.
A usable feature is the ready-made current curves available
for many relay types.
During relay testing, each measured value is stored in a log
list. In this list you can add comments to each test point.
When the entire test is finished, you can save everything
as a data file. Later, you can print out the test results. You
save time by not having to write your report in the field. All
report writing can be done conveniently back at the office.
The SVERKER Win software provides easy access to
connection instructions, test instructions and the like,
which you prepare in advance. These instructions, which
can contain both text and graphics, can be prepared using
standard word processing packages.
The settings you make on SVERKER are also saved in a file,
so that the next time you want to test the same or similar
protective relay equipment, all you have to do in order to
set-up the SVERKER, is to open the file.
The SVERKER Win software comprises a 32-bit program
written to run under Windows® 95/98/2000/NT/XP. The
amount of space needed to save reports and settings will
depend on how many protective systems that are to be
tested. Roughly estimated, you will thus need a total of
about 20-100 MB of free space on the hard disk. Languages
in SVERKER Win are: Czech, English, French, German,
Spanish and Swedish.
Frequency relay test report
Testing frequency relay with SVERKER 780
Specifications SVERKER 750 / 780
Specifications are valid at nominal input voltage and an ambient
temperature of +25°C, (77°F). Specifications are subject to change
without notice.
Environment
Application fieldThe instrument is intended for use in
high-voltage substations and industrial
environments.
Temperature
Operating0°C to +50°C (32°F to +122°F)
Storage &
-40°C to +70°C (-40°F to +158°F)
transport
Humidity5% – 95% RH, non-condensing
CE-marking
LVDLow Voltage Directive 2006/95/EC
EMCEMC Directive 2004/108/EC
General
Mains voltage115 / 230 V AC, 50 / 60 Hz
Power consumption (max)1380 W
ProtectionThermal cut-outs, automatic overload
protection
Dimensions
Instrument350 x 270 x 220 mm
(13.8” x 10.6” x 8.7”)
Transport case610 x 350 x 275 mm
(24.0” x 13.8” x 10.8”)
Weight
SVERKER 75017.3 kg (38.1 lbs)
26.3 kg (58 lbs) with accessories and
transport case
SVERKER 78018.1 kg (39.9 lbs)
27.1 kg (59.7 lbs) with accessories and
transport case
Test lead set, with 4 mm
2 x 0.25 m (0.8 ft), 2.5 mm
2
stackable safety plugs
2 x 0.5 m (1.6 ft), 2.5 mm
2
8 x 2.0 m (6.6 ft), 2.5 mm
2
Test leads with spade
2 x 3.0 m (9.8 ft), 10 mm
2
tongue connectors
DisplayLCD
Available languages
SVERKER 750English, French, German, Spanish,
Swedish
SVERKER 780Bulgarian, Czech, English, French,
German, Russian, Spanish, Swedish,
Turkish
Measurement section
Timer
Time can be displayed in seconds or in mains-frequency cycles.
RangeResolutionInaccuracy
000-9.999 s1 ms±(1 ms + 0.01%)*
10.00-99.99 s10 ms±(10 ms + 0.01 %)*
100.0-999.9 s100 ms±(100 ms + 0.01 %)*
* For the OFF+TIME start condition in INT mode, 1 ms shall be ad-
ded to the above measurement error.
RangeResolutionInaccuracy
0.0-999.9 cycles0.1 cycles±(0.1 cycles + 0.01%)
1000-49999 1 cycle±(1 cycle + 0.01 %)
cycles at 50 Hz
1000-59999
cycles at 60 Hz
SVERKER 750/780
Relay Test Sets
Ammeter
Measurement methodAC, true RMS
DC, mean value
Ranges
Internal0.00 – 250.0 A
External0.000 – 6.000 A
Inaccuracy
Internal range
1)
0 – 10 A AC±(1% + 20 mA)
0 – 40 A AC±(1% + 40 mA)
0 – 100 A AC±(1% + 200 mA)
External range
1)
0 – 0.6 A AC±(1% + 20 mA)
0 – 6 A AC±(1% + 20 mA)
0 – 0.6 A DC±(0.5% + 2 mA)
0 – 6 A DC±(0.5% + 20 mA)
Resolution
Internal range10 mA (range <100 A)
100 mA (range >100 A)
External range1 mA
Voltmeter
Measurement methodAC, true RMS
DC, mean value
Range0.00 – 600.0 V
Inaccuracy
1)
AC, ±(1% + 200 mV) Max. value
DC, ±(0.5% + 200 mV) Max. value
Values are range depending
Extra measurements
Power factor and phase angle measurements
RangeResolutionInaccuracy
Power factor cos φ
-0.99 (cap) to 0.01±0.04
+0.99 (ind)
Phase angle φ (°)000 – 359°1°±2°
Impedance and power measurements
ACZ (
Ω and °), Z (Ω), R and X (Ω and Ω),
P (W), S (VA), Q (VAR)
DCR (
Ω), P (W)
RangeUp to 999 kX (X= unit)
Make / Break contact
Max. current1 A
Max. voltage250 V AC or 120 V DC
Reclosing test
Items measuredTripping and reclosing times
DisplayAfter test is finished a list of all times
appears in display
Breaker state feedback
The Make / Break contact can be used
to feed back the breaker state
Max. number of reclosings49
Max. testing time999 s
Sets of resistors and a capacitor
Resistors0.5 Ω to 2.5 kΩ
Capacitor
2)
10 μF, max voltage 450 V AC
1) Measurement intervals longer than 100 ms
2) SVERKER 750
SVERKER 750/780
Relay Test Sets
Outputs
Current outputs – AC
RangeNo-load Full-load Full-load Load / unload
voltage voltage current times
On (min)(min)(max)
(max) / Off
(min)
2 / 15 minutes
90 V75 V10 A
25 V20 V40 A1 / 15 minutes
10 V8 V100 A1 / 15 minutes
10 V-200 A1 sec/ 5 mi-
nutes
0 – 10 A
0 – 40 A
0 – 100 A
0 – 100 A
Voltage outputs – AC / DC
RangeNo-load Full-load Full-load Load / unload
voltage voltage current times
(min)(min)(max)On
(max) / Off
(min)
10 min / 45 min
0 – 250 V AC290 V AC 250 V AC 3 A
0 – 300 V DC320 V DC250 V DC2 A 10 min / 45 min
Separate AC voltage source
SVERKER 750
RangeNo-load vol-
tage (min)
0 – 60 V AC
60 – 120 V AC
70 V
130 V
Full-load vol-
tage (min)
60 V
120 V
Full-load
current
(max)
0.25 A
0.25 A
Both ranges are divided into voltage steps of 10 V that are step-
lessly variable.
SVERKER 780
RangeNo-load vol-Full-load Full-load po-
tage (min)voltage (min)wer (max)
5 – 220 V AC 240 V AC 220 V AC at 33 W
minimum step 33 W continuously.
0.1 V200 V AC at 46 W
46 W1 minute
Phase angleResolutionInaccuracy
0 – 359°1°±2°
FrequencyResolutionInaccuracy
15 – 550 Hz1 mHz±0.1%
Auxiliary DC output
Range
20 – 130 V DC
130 – 220 DC
Voltage
20 V DC
130 V DC
130 V DC
220 V DC
Max. current
300 mA
375mA
325 mA
400 mA
Optional accessories
Power source CSU20A
CSU20A is a small light-weight current and voltage
source primarily intended to work together with the
SVERKER 750/780 Relay Testing Unit when testing
differential relays. Using the CSU20A together with
SVERKER 750/780 gives the user two independent
current sources, and the timer/measurement section in
SVERKER 750/780 is used both for measuring the two
outputs as well as measuring the trip time of the relay.
Besides testing differential relays the unit can be used as a
multi-purpose AC/DC source. The CSU20A features one AC
current/voltage output, one fully rectified DC output and
one half-wave rectified DC output for harmonic restraint
testing.
Other features are a current measurement shunt, selectable
current/voltage ranges and an AC mains input/output.
Connecting the SVERKER 750/780 mains to the mains
output of the CSU20A gives an in-phase synchronization of
the two units.
Specifications CSU20A
Specifications are valid at nominal input voltage and an ambient
temperature of +25°C, (77°F). Specifications are subject to change
without notice.
Operating temperature-20°C to +50°C (-4°F to +122°F)
Mains voltage
115 / 230 V AC, 50 / 60 Hz
Thermal protectionBuilt-in
Dimensions280 x 178 x 246 mm
(11” x 7” x 9.7”)
Weight5.9 kg (13 lbs) excl. transport case
Current measurementsCurrent shunt 0.1 A / 1 V, ± 2%
Output, AC
20 A settingOutput voltage (min)Load time
Idle/non-load26 V Continuous
5 A25 V Continuous
10 A22 VContinuous
20 A18 V2 min
10 A setting
Idle/non-load52 VContinuous
3 A50 VContinuous
5 A47 VContinuous
10 A41 V10 min
Output, DC
DC currentAs above, less the voltage drop over the recti-
fying diodes
CSU20A
SVERKER 750/780
Relay Test Sets
Phase selector switch PSS750
The Phase Selector Switch PSS750 is specifically designed
to work with SVERKER 750/780 when testing three-phase
relays. It is connected between SVERKER 750/780 and
the relay inputs and allows the user to easily select which
phase to test.
The PSS750 handles both the current and voltage sources
and single-phase or phase-phase testing can be selected.
Together with the output-input switching the unit also
contains a variable resistor that can be used together with
the built-in capacitor in SVERKER 750/780. This feature
gives the user the possibility to create a variable phase shift
at a decreased amplitude of the test voltage.
The design is passive which makes it very general. You
may for example use any of the inputs for current or
voltage as long as you do not exceed the specification.
It is also possible to connect the measuring inputs of the
SVERKER 750/780 to the PSS750 and use the switch for
selecting measurement signals.
The PSS750 simplifies phase switching, selecting type of
fault, phase reversing and gives a possibility to create a
variable phase shift..
Specifications PSS750
Specifications are valid at nominal input voltage and an ambient
temperature of +25°C, (77°F). Specifications are subject to change
without notice.
Max input voltage 250 V AC / 3 A
Max input current6 A / 250 V AC
Max resistor loading200 V AC / 200 mA (0.5 A during
5 seconds)
Dimensions200 x 120 x 85 mm
(7.9” x 4.7” x 3.3”)
Weight1.3 kg (2.9 lbs)
PSS750
SVERKER 750/780
Relay Test Sets
Application example with PSS750
IMPORTANT!
Read the User’s manual before using the instrument
1. Connect the current and voltage outputs of
SVERKER 750/780 to the PSS750 inputs.
2. Connect the current and voltage inputs of the relay
to the PSS750 outputs.
3. Select which phase to test and type of test (phase-to-
ground or phase-phase) with the selector switch.
4. Proceed with the test for each phase and fault type.
5. To create a phase shift, connect the 10 µF capacitor
in SVERKER 750/780 in series between the voltage
output and the PSS750 input, and connect the
variable resistor in parallel with the PSS750 input.
6. Set the SVERKER 750/780 for phase (and impedance)
measurement. Connect the voltage measurement
input to the PSS750 input.
7. Start the test with the resistor in maximum position.
Gradually decreasing the resistor gives increasing
phase shift in the voltage signal. The test voltage/
impedance will decrease at the same time so an
adjustment of the test current might be necessary to
get the correct impedance. Please observe that the
phase shift depends on the input resistance and may
vary between different relays. Some relays may also
have a low voltage limit where the relay will not
operate. For additional 180 degrees phase shift use
the phase reversal switch.
Test lead set
Item
SVERKER 750
Complete with Test lead set GA-00030 and Trans-
port case GD-00182, language: English, French,
German, Spanish, Swedish
115 V Mains voltage
230 V Mains voltage
SVERKER 780
Complete with Test lead set GA-00030 and Trans-
port case GD-00182, language: Eng, Spa, Fre
115 V Mains voltage
230 V Mains voltage
SVERKER 780
Complete with Test lead set GA-00030 and Trans-
port case GD-00182, language: Eng, Ger, Swe
230 V Mains voltage
SVERKER 780
Complete with Test lead set GA-00030 and Trans-
port case GD-00182, language: Eng, Turk, Bulg
230 V Mains voltage
SVERKER 780
Complete with Test lead set GA-00030 and Trans-
port case GD-00182, language: Eng, Rus, Cze
230 V Mains voltage
Cat. No.
Item
Optional
SVERKER Win PC Software
Please specify the SVERKER serial number when
ordering.
SVERKER Win contains software, a copy-protection
key and cables (RS232 and USB) for connecting the
PC to SVERKER.
Note that the software key can be installed on a
single SVERKER. The software itself, however, can
be installed on an unlimited number of PCs.
SVERKER Win Upgrade
Optional accessories
CSU20A
Complete with cables and transport case
115 V Mains voltage
230 V Mains voltage
PSS750
Cable organizer
Velcro straps, 10 pcs.
Cat. No.
CD-11190
CD-12390
CD-31190
CD-32390
CD-8102X
CD-8101X
CD-32392
BF-41190
BF-42390
CD-90020
AA-00100
CD-32394
CD-32396
UK
Archcliffe Road Dover
CT17 9EN England
T +44 (0) 1304 502101
F +44 (0) 1304 207342
UNITED STATES
4271 Bronze Way
Dallas, TX 75237-1018 USA
T 1 800 723 2861
T 1 214 333 3201
F 1 214 331 7399
Other Technical Sales Offices
Norristown USA, Toronto CANADA,
Trappes FRANCE, Oberursel GERMANY,
Taby SWEDEN, Johannesburg SOUTH
AFRICA, Kingdom of BAHRAIN
Mumbai INDIA, Chonburi THAILAND
Sydney AUSTRALIA
Registered to ISO 9001 and 14001
Subject to change without notice.
. ZI-CD07E • Doc. CD0265FE • 2009
SVERKER-750-780_DS_en_V04
Megger is a registered trademark
2024年10月28日发(作者：莘嘉云)
SVERKER 750/780
Relay Test Sets
SVERKER 750/780
Relay Test Sets
■■
The engineer’s toolbox for all single phase
relay testing
■■
Stand-alone functionality
■■
Rugged and reliable for field use
Description
The SVERKER 750/780 Relay Test Set is the engineer's
toolbox. The control panel features a logical layout, still
SVERKER 650 users will find it comfortably familiar and will
be able to start work right away.
The SVERKER 750/780 features many functions that make
relay testing more efficient. For example, its powerful
measurement section can display (in addition to time,
voltage and current) Z, R, X, S, P, Q, phase angle and
cos φ. The voltmeter can also be used as a 2nd ammeter
(when testing differential relays for example). All values are
presented on a single easy-to-read display.
You can also test directional protective equipment
efficiantly by means of the built-in variable voltage source.
In SVERKER 780 this has a continuous phase shift function
and adjustable frequency as well. Automatic reclosing
devices can also be tested – just as easily.
Designed to comply with EU standards and other personal
and operational safety standards, SVERKER 750/780 is
also equipped with a serial port for communication with
personal computers and the PC software SVERKER Win.
Since the compact SVERKER weighs only 18 kg (39 lbs), it’s
easy to move from site to site.
Two or more SVERKER units can also be synchronized,
which allows the user to operate a basic 3-phase test set.
Application
Relay Testing
SVERKER 750/780 is intended primarily for secondary testing of
protective relay equipment. Virtually all types of single-phase
protection can be tested. You can also test three-phase protection
that can be tested one phase at a time, and also a number of
protective relay systems that require phase shifting. Moreover,
automatic reclosing devices can be tested.
SVERKER 780 can test voltage relays with a frequency range from
15 Hz up tp 550 Hz.
Examples of what SVERKER 750/780 can test
Overcurrent relays
Inverse time overcurrent relays
Undercurrent relays
Ground fault relays
Directional overcurrent relays
Directional ground fault relays
Overvoltage relays
Undervoltage relays
Directional power relays
Power factor relays
Differential protection (differential circuits)
Distance protection equipment (phase by phase)
Negative sequence overcurrent relays
Motor overload protection
Automatic reclosing devices
Tripping relays
Voltage regulating relays
Underimpedance relays
Thermal relays
Time-delay relays
Frequency relays (SVERKER 780)
ANSI
®
No.
50
51
37
50N, 51N
67
67N
59
27
32
55
87
21
46
51/66
79
94
21
49
81
Other fields of application
■■
Plotting excitation curves
■■
Current and voltage transformer ratio tests
■■
Burden measurement for protective relay test equipment
■■
Impedance measurement
■■
Efficiency tests
■■
Polarity (direction) tests
■■
Injection
■■
Maintained
■■
Injection continues without any time limitation.
■■
Momentary
■■
Injection continues only as long as the button is kept
depressed.
■■
Max. time
■■
Injection stops automatically when the preset maximum
time is reached.
■■
Filtering
■■
When filtering is selected, five successive readings are
averaged. The following can be filtered: Current, Voltage
and Extra items that are measured.
■■
Off delay
■■
The turning off of generation can be delayed after
tripping throughout a specified time interval that is
expressed in mains frequency cycles.
Application example
IMPORTANT!
Read the User’s manual before using the instrument.
Testing the pick-up and drop-out using SVERKER 780
1. Connect as shown in the diagram.
2. Select stop conditions, dry or wet contact.
3. Select HOLD to freeze the current reading.
4. Press button SEL/ A until you get a red light at the
built-in ammeter.
Note: Maximum allowed current through the
separate ammeter used in this connection example is
6 A. The other measurement points do not have this
limitation.
5. Press the MODE button.
6. Use the key ▼ to select Ω, φ, W, VA...
7. Press CHG (Change)
8. Select φ (°, Iref) or (°, Uref) by using the key ▼.
9. Press SEL (Select)
10. Press ESC
11. Set the voltage amplitude with the upper small
knob.
12. Make sure the main knob is set to 0.
13. Turn on the SVERKER output by activating ON using
the start switch ▼.
14. Set the phase-angle. Use the lower knob for fine
adjustment, and the middle knob for step of 90°.
Note: A small current flowing in the circuit is
required to measure the phase angle.
SVERKER 750/780
Relay Test Sets
Testing the operation time
15. Increase the current to 1.5 times the pick-up value.
16. Invoke the ON+TIME state by means of the start
switch. The outputs will now remain turned on until
the protective relay equipment operates.
17. Read the time from the display. Check also the high
current setting using the same procedure.
Testing the pick-up and drop-out using SVERKER 780
Features and benefits
ample) to synchronize
current source on and
1. Set of resistors
two or more SVERK-
off. When time is being
Fine regulation of current
ER units, other external
measured, this is done in
and voltage thanks to the
equipment or to switch
synchronization with the
built-in set of resistors.
the voltage applied to the
timer.
2. Start and stop condi-
protective relay equip-
8. Auxiliary voltage
tions
ment back and forth be-
source
The timer’s start and stop
tween non-faulty and
Provides 20-220 V DC in
inputs respond to chang-
faulty.
two ranges. Equipped
es, voltage or contact
6. Ammeter and voltmeter
with overload protection
closing/openings. The
Current and voltage are
and separated from the
timer’s start input is also
measured by the built-
other outputs. Used fre-
used when testing auto-
in ammeter and voltme-
quently to supply the ob-
reclosing relays, to syn-
ter. Resistance, imped-
ject being tested.
chronize two or more
ance, phase angle, power
9. Status indicator
SVERKER units and to
and power factor can
The timer’s start and stop
start generation with an
also be measured. Read-
inputs are each equipped
external signal.
ings appear on the dis-
with indicator lamps
3. Display
play. These instruments
which, when lighted, in-
Presents time, current,
can also be used to take
dicate a closed circuit
voltage and other entities.
measurements in exter-
(useful for detecting con-
Also used to make set-
nal circuits. The voltme-
tact closings/openings) or
tings, after you enter the
ter can also be used as a
the presence of voltage.
setting mode by pressing
2nd ammeter (when test-
These indicator lamps
button marked MODE.
ing differential relays for
example, using CSU20A).
make it possible (for ex-
4. Freeze function (HOLD)
Current and voltage can
ample) to check circuits
This makes it possible
be displayed either as
before starting a measure-
to measure voltages and
amperes and volts or as
ment cycle.
current as short as a quar-
percentages of a given
10. Timer inputs
ter of a mains-voltage pe-
current or voltage (the
The timer has separate
riod by immobilizing the
present settings of the
start and stop inputs, and
reading on the display.
protective relay equip-
it can be used to mea-
Voltage and current read-
ment for example).
sure both external cycles
ings are frozen when the
timer stops. If the timer
7. Current source
and sequences initiated
does not stop, the read-
Provides 0-250 A AC,
by SVERKER. The mea-
ing present when the cur-
0-250 V AC or 0-300 V DC,
sured time appears on
rent was interrupted is
depending on the output
the display. Each input
frozen on the display.
that is being used. Set-
can be set to respond to
tings are made using the
the presence or absence
5. Make/break contact
main knob. The read-
of voltage (AC or DC) at
Changes state automati-
ings of current, voltage
a contact.
cally when a test is start-
and other entities appear
11. Start switch
ed. Can be used (for ex-
on the display. The start
Controls the turning on
switch is used to turn the
and off of the current
12345678
91
SVERKER 750/780
Relay Test Sets
source and timer. Can be
set to one of four states.
ON+TIME. Starts gener-
ation and timing simul-
taneously. Used to test
relays (...means
current, voltage or some
other entity). Genera-
tion continues a) until the
protective relay equip-
ment operates and stops
the timer or b) until the
maximum time expires
or the start switch is re-
leased if time-limited gen-
eration has been selected.
OFF. Turns off the cur-
rent source, whereupon
generation is interrupt-
ed. ON. Turns on the cur-
rent source in the gen-
erating state. OFF+TIME.
Interrupts generation and
starts the timer simultane-
ously. Used when testing
under ...relays (...means
current, voltage or some
other entity). The timer
is stopped when the pro-
tective relay equipment
operates. When automat-
ic reclosing is to be test-
ed, SVERKER can be set
so that new generation
will start when the timer’s
start input is activated by
the closing command.
12. Computer communica-
tion interface USB
SVERKER is equipped
with a serial port for
communication with per-
sonal computers and
the PC software SVERK-
ER Win.
13. Tripping indicator
Lights when a stop condi-
tion is fulfilled to indicate
operation of the protec-
tive relay equipment. If
the test being conducted
incorporates timing, this
indicator starts to blink
when relay operation oc-
curs.
14. Main knob
Used to set current out-
put from the current
source.
15. AC voltage source
Since the AC voltage
source is separated from
other outputs, it is set in-
dependently of the cur-
rent source. The AC volt-
age source is intended
primarily for the relay
protection equipment’s
voltage input.
SVERKER 750/780
Relay Test Sets
SVERKER Win
PC software for SVERKER 750/780
Specifications SVERKER Win
The SVERKER Win software makes fieldwork easier while
providing neater reports. The SVERKER Win software
enables you to control the SVERKER from a PC. The
SVERKER is connected to the PC’s serial port. Test results
can be reported either directly with table and graph, or
from an external program, e.g. Microsoft® EXCEL.
SVERKER Win enables customised reports in an easy
way. Very useful are the reference graphs, together with
the current/voltage graph presentation for each test point
during the test. The graph can of course be printed out on
the test report if you like.
A usable feature is the ready-made current curves available
for many relay types.
During relay testing, each measured value is stored in a log
list. In this list you can add comments to each test point.
When the entire test is finished, you can save everything
as a data file. Later, you can print out the test results. You
save time by not having to write your report in the field. All
report writing can be done conveniently back at the office.
The SVERKER Win software provides easy access to
connection instructions, test instructions and the like,
which you prepare in advance. These instructions, which
can contain both text and graphics, can be prepared using
standard word processing packages.
The settings you make on SVERKER are also saved in a file,
so that the next time you want to test the same or similar
protective relay equipment, all you have to do in order to
set-up the SVERKER, is to open the file.
The SVERKER Win software comprises a 32-bit program
written to run under Windows® 95/98/2000/NT/XP. The
amount of space needed to save reports and settings will
depend on how many protective systems that are to be
tested. Roughly estimated, you will thus need a total of
about 20-100 MB of free space on the hard disk. Languages
in SVERKER Win are: Czech, English, French, German,
Spanish and Swedish.
Frequency relay test report
Testing frequency relay with SVERKER 780
Specifications SVERKER 750 / 780
Specifications are valid at nominal input voltage and an ambient
temperature of +25°C, (77°F). Specifications are subject to change
without notice.
Environment
Application fieldThe instrument is intended for use in
high-voltage substations and industrial
environments.
Temperature
Operating0°C to +50°C (32°F to +122°F)
Storage &
-40°C to +70°C (-40°F to +158°F)
transport
Humidity5% – 95% RH, non-condensing
CE-marking
LVDLow Voltage Directive 2006/95/EC
EMCEMC Directive 2004/108/EC
General
Mains voltage115 / 230 V AC, 50 / 60 Hz
Power consumption (max)1380 W
ProtectionThermal cut-outs, automatic overload
protection
Dimensions
Instrument350 x 270 x 220 mm
(13.8” x 10.6” x 8.7”)
Transport case610 x 350 x 275 mm
(24.0” x 13.8” x 10.8”)
Weight
SVERKER 75017.3 kg (38.1 lbs)
26.3 kg (58 lbs) with accessories and
transport case
SVERKER 78018.1 kg (39.9 lbs)
27.1 kg (59.7 lbs) with accessories and
transport case
Test lead set, with 4 mm
2 x 0.25 m (0.8 ft), 2.5 mm
2
stackable safety plugs
2 x 0.5 m (1.6 ft), 2.5 mm
2
8 x 2.0 m (6.6 ft), 2.5 mm
2
Test leads with spade
2 x 3.0 m (9.8 ft), 10 mm
2
tongue connectors
DisplayLCD
Available languages
SVERKER 750English, French, German, Spanish,
Swedish
SVERKER 780Bulgarian, Czech, English, French,
German, Russian, Spanish, Swedish,
Turkish
Measurement section
Timer
Time can be displayed in seconds or in mains-frequency cycles.
RangeResolutionInaccuracy
000-9.999 s1 ms±(1 ms + 0.01%)*
10.00-99.99 s10 ms±(10 ms + 0.01 %)*
100.0-999.9 s100 ms±(100 ms + 0.01 %)*
* For the OFF+TIME start condition in INT mode, 1 ms shall be ad-
ded to the above measurement error.
RangeResolutionInaccuracy
0.0-999.9 cycles0.1 cycles±(0.1 cycles + 0.01%)
1000-49999 1 cycle±(1 cycle + 0.01 %)
cycles at 50 Hz
1000-59999
cycles at 60 Hz
SVERKER 750/780
Relay Test Sets
Ammeter
Measurement methodAC, true RMS
DC, mean value
Ranges
Internal0.00 – 250.0 A
External0.000 – 6.000 A
Inaccuracy
Internal range
1)
0 – 10 A AC±(1% + 20 mA)
0 – 40 A AC±(1% + 40 mA)
0 – 100 A AC±(1% + 200 mA)
External range
1)
0 – 0.6 A AC±(1% + 20 mA)
0 – 6 A AC±(1% + 20 mA)
0 – 0.6 A DC±(0.5% + 2 mA)
0 – 6 A DC±(0.5% + 20 mA)
Resolution
Internal range10 mA (range <100 A)
100 mA (range >100 A)
External range1 mA
Voltmeter
Measurement methodAC, true RMS
DC, mean value
Range0.00 – 600.0 V
Inaccuracy
1)
AC, ±(1% + 200 mV) Max. value
DC, ±(0.5% + 200 mV) Max. value
Values are range depending
Extra measurements
Power factor and phase angle measurements
RangeResolutionInaccuracy
Power factor cos φ
-0.99 (cap) to 0.01±0.04
+0.99 (ind)
Phase angle φ (°)000 – 359°1°±2°
Impedance and power measurements
ACZ (
Ω and °), Z (Ω), R and X (Ω and Ω),
P (W), S (VA), Q (VAR)
DCR (
Ω), P (W)
RangeUp to 999 kX (X= unit)
Make / Break contact
Max. current1 A
Max. voltage250 V AC or 120 V DC
Reclosing test
Items measuredTripping and reclosing times
DisplayAfter test is finished a list of all times
appears in display
Breaker state feedback
The Make / Break contact can be used
to feed back the breaker state
Max. number of reclosings49
Max. testing time999 s
Sets of resistors and a capacitor
Resistors0.5 Ω to 2.5 kΩ
Capacitor
2)
10 μF, max voltage 450 V AC
1) Measurement intervals longer than 100 ms
2) SVERKER 750
SVERKER 750/780
Relay Test Sets
Outputs
Current outputs – AC
RangeNo-load Full-load Full-load Load / unload
voltage voltage current times
On (min)(min)(max)
(max) / Off
(min)
2 / 15 minutes
90 V75 V10 A
25 V20 V40 A1 / 15 minutes
10 V8 V100 A1 / 15 minutes
10 V-200 A1 sec/ 5 mi-
nutes
0 – 10 A
0 – 40 A
0 – 100 A
0 – 100 A
Voltage outputs – AC / DC
RangeNo-load Full-load Full-load Load / unload
voltage voltage current times
(min)(min)(max)On
(max) / Off
(min)
10 min / 45 min
0 – 250 V AC290 V AC 250 V AC 3 A
0 – 300 V DC320 V DC250 V DC2 A 10 min / 45 min
Separate AC voltage source
SVERKER 750
RangeNo-load vol-
tage (min)
0 – 60 V AC
60 – 120 V AC
70 V
130 V
Full-load vol-
tage (min)
60 V
120 V
Full-load
current
(max)
0.25 A
0.25 A
Both ranges are divided into voltage steps of 10 V that are step-
lessly variable.
SVERKER 780
RangeNo-load vol-Full-load Full-load po-
tage (min)voltage (min)wer (max)
5 – 220 V AC 240 V AC 220 V AC at 33 W
minimum step 33 W continuously.
0.1 V200 V AC at 46 W
46 W1 minute
Phase angleResolutionInaccuracy
0 – 359°1°±2°
FrequencyResolutionInaccuracy
15 – 550 Hz1 mHz±0.1%
Auxiliary DC output
Range
20 – 130 V DC
130 – 220 DC
Voltage
20 V DC
130 V DC
130 V DC
220 V DC
Max. current
300 mA
375mA
325 mA
400 mA
Optional accessories
Power source CSU20A
CSU20A is a small light-weight current and voltage
source primarily intended to work together with the
SVERKER 750/780 Relay Testing Unit when testing
differential relays. Using the CSU20A together with
SVERKER 750/780 gives the user two independent
current sources, and the timer/measurement section in
SVERKER 750/780 is used both for measuring the two
outputs as well as measuring the trip time of the relay.
Besides testing differential relays the unit can be used as a
multi-purpose AC/DC source. The CSU20A features one AC
current/voltage output, one fully rectified DC output and
one half-wave rectified DC output for harmonic restraint
testing.
Other features are a current measurement shunt, selectable
current/voltage ranges and an AC mains input/output.
Connecting the SVERKER 750/780 mains to the mains
output of the CSU20A gives an in-phase synchronization of
the two units.
Specifications CSU20A
Specifications are valid at nominal input voltage and an ambient
temperature of +25°C, (77°F). Specifications are subject to change
without notice.
Operating temperature-20°C to +50°C (-4°F to +122°F)
Mains voltage
115 / 230 V AC, 50 / 60 Hz
Thermal protectionBuilt-in
Dimensions280 x 178 x 246 mm
(11” x 7” x 9.7”)
Weight5.9 kg (13 lbs) excl. transport case
Current measurementsCurrent shunt 0.1 A / 1 V, ± 2%
Output, AC
20 A settingOutput voltage (min)Load time
Idle/non-load26 V Continuous
5 A25 V Continuous
10 A22 VContinuous
20 A18 V2 min
10 A setting
Idle/non-load52 VContinuous
3 A50 VContinuous
5 A47 VContinuous
10 A41 V10 min
Output, DC
DC currentAs above, less the voltage drop over the recti-
fying diodes
CSU20A
SVERKER 750/780
Relay Test Sets
Phase selector switch PSS750
The Phase Selector Switch PSS750 is specifically designed
to work with SVERKER 750/780 when testing three-phase
relays. It is connected between SVERKER 750/780 and
the relay inputs and allows the user to easily select which
phase to test.
The PSS750 handles both the current and voltage sources
and single-phase or phase-phase testing can be selected.
Together with the output-input switching the unit also
contains a variable resistor that can be used together with
the built-in capacitor in SVERKER 750/780. This feature
gives the user the possibility to create a variable phase shift
at a decreased amplitude of the test voltage.
The design is passive which makes it very general. You
may for example use any of the inputs for current or
voltage as long as you do not exceed the specification.
It is also possible to connect the measuring inputs of the
SVERKER 750/780 to the PSS750 and use the switch for
selecting measurement signals.
The PSS750 simplifies phase switching, selecting type of
fault, phase reversing and gives a possibility to create a
variable phase shift..
Specifications PSS750
Specifications are valid at nominal input voltage and an ambient
temperature of +25°C, (77°F). Specifications are subject to change
without notice.
Max input voltage 250 V AC / 3 A
Max input current6 A / 250 V AC
Max resistor loading200 V AC / 200 mA (0.5 A during
5 seconds)
Dimensions200 x 120 x 85 mm
(7.9” x 4.7” x 3.3”)
Weight1.3 kg (2.9 lbs)
PSS750
SVERKER 750/780
Relay Test Sets
Application example with PSS750
IMPORTANT!
Read the User’s manual before using the instrument
1. Connect the current and voltage outputs of
SVERKER 750/780 to the PSS750 inputs.
2. Connect the current and voltage inputs of the relay
to the PSS750 outputs.
3. Select which phase to test and type of test (phase-to-
ground or phase-phase) with the selector switch.
4. Proceed with the test for each phase and fault type.
5. To create a phase shift, connect the 10 µF capacitor
in SVERKER 750/780 in series between the voltage
output and the PSS750 input, and connect the
variable resistor in parallel with the PSS750 input.
6. Set the SVERKER 750/780 for phase (and impedance)
measurement. Connect the voltage measurement
input to the PSS750 input.
7. Start the test with the resistor in maximum position.
Gradually decreasing the resistor gives increasing
phase shift in the voltage signal. The test voltage/
impedance will decrease at the same time so an
adjustment of the test current might be necessary to
get the correct impedance. Please observe that the
phase shift depends on the input resistance and may
vary between different relays. Some relays may also
have a low voltage limit where the relay will not
operate. For additional 180 degrees phase shift use
the phase reversal switch.
Test lead set
Item
SVERKER 750
Complete with Test lead set GA-00030 and Trans-
port case GD-00182, language: English, French,
German, Spanish, Swedish
115 V Mains voltage
230 V Mains voltage
SVERKER 780
Complete with Test lead set GA-00030 and Trans-
port case GD-00182, language: Eng, Spa, Fre
115 V Mains voltage
230 V Mains voltage
SVERKER 780
Complete with Test lead set GA-00030 and Trans-
port case GD-00182, language: Eng, Ger, Swe
230 V Mains voltage
SVERKER 780
Complete with Test lead set GA-00030 and Trans-
port case GD-00182, language: Eng, Turk, Bulg
230 V Mains voltage
SVERKER 780
Complete with Test lead set GA-00030 and Trans-
port case GD-00182, language: Eng, Rus, Cze
230 V Mains voltage
Cat. No.
Item
Optional
SVERKER Win PC Software
Please specify the SVERKER serial number when
ordering.
SVERKER Win contains software, a copy-protection
key and cables (RS232 and USB) for connecting the
PC to SVERKER.
Note that the software key can be installed on a
single SVERKER. The software itself, however, can
be installed on an unlimited number of PCs.
SVERKER Win Upgrade
Optional accessories
CSU20A
Complete with cables and transport case
115 V Mains voltage
230 V Mains voltage
PSS750
Cable organizer
Velcro straps, 10 pcs.
Cat. No.
CD-11190
CD-12390
CD-31190
CD-32390
CD-8102X
CD-8101X
CD-32392
BF-41190
BF-42390
CD-90020
AA-00100
CD-32394
CD-32396
UK
Archcliffe Road Dover
CT17 9EN England
T +44 (0) 1304 502101
F +44 (0) 1304 207342
UNITED STATES
4271 Bronze Way
Dallas, TX 75237-1018 USA
T 1 800 723 2861
T 1 214 333 3201
F 1 214 331 7399
Other Technical Sales Offices
Norristown USA, Toronto CANADA,
Trappes FRANCE, Oberursel GERMANY,
Taby SWEDEN, Johannesburg SOUTH
AFRICA, Kingdom of BAHRAIN
Mumbai INDIA, Chonburi THAILAND
Sydney AUSTRALIA
Registered to ISO 9001 and 14001
Subject to change without notice.
. ZI-CD07E • Doc. CD0265FE • 2009
SVERKER-750-780_DS_en_V04
Megger is a registered trademark