Megger Sverker 750, Sverker 780 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.
The contents of this manual are the property of Megger
Sweden
AB. No part of this work may be reproduced or
transmitted
in any
form
or
by
any means, except as permitted in
written
license agreement
with
Megger
Sweden
AB. Megger
Sweden
AB has made every reasonable
attempt
to ensure the completeness and accuracy of this document. However, the
information
contained in this manual is subject to change
without
notice, and does not represent a commitment on the part of Megger
Sweden
AB. Any attached hardware schematics and technical
descriptions,
or software listings that disclose source code, are for
informational
purposes only. Reproduction in whole or in part to create
working
hardware or software for other than Megger
Sweden
AB products is
strictly
prohibited,
except as permitted by
written
license
agreement
with
Megger
Sweden
AB.
TRADEMARK
NOTICES
Megger®
and
Programma®
are trademarks registered in the U.S. and other countries. All other brand and product names mentioned in this
document
are trademarks or registered trademarks of their respective companies.
Megger
Sweden
AB is certified according to ISO 9001 and
14001.
Postal
address: Visiting address:
Megger
Sweden
AB Megger
Sweden
AB
Box 724 Rinkebyvagen 19
SE-182
17
DANDERYD
SE-182
36
DANDERYD
SWEDEN SWEDEN
T
+46 8 510 195 00 seinfo@megger.com f f
F +46 8 510 195 95 www.megger.com ^ ^
CD0795IE
ZP-CD03E
SVERKER
750/780
Contents
1
Safety
6
Symbols
on
the instrument
6
Safety
instructions
6
2
Introduction
8
2.1 Applications
8
Other applications
8
2.2 Design
and
construction
9
3
Description
10
3.1
General
10
SVERKER
750 control panel
10
SVERKER
780 control panel
10
3.2 Current source
11
3.3 Timer
12
Start conditions
12
Stop conditions
12
3.4 Trip indicator
13
3.5 Display
13
3.6 Ammeter & voltmeter
14
3.7
AC
Voltage source
15
3.8 Auxiliary voltage source
15
3.9
Make/Break
contact
16
3.10 Resistor
set
and capacitor
16
3.11
Power
supply
17
3.12 Computer interface
.17
4
Control
panels
18
4.1 Front panels
18
SVERKER
750
18
SVERKER
780
19
4.2 Current source
20
4.3 Timer
21
4.4 Trip indicator
22
4.5 Display
22
4.6 Ammeter & voltmeter
23
4.7
AC
Voltage source
23
SVERKER
750
23
SVERKER
780
23
4.8 Auxiliary voltage source
24
4.9
Make/Break
contact
24
4.10 Resistor
set
and capacitor
25
4.11
Power
supply
25
4.12 Other
26
5
Making
settings
on
the
display
28
5.1 Introduction
28
5.2 Button functions
29
5.3 Direction indicator
29
5.4 The menu system
30
5.5 Test mode
31
5.6 Injection
32
5.7 Ammeter
32
5.8 Voltmeter
33
5.9
O , (p , W ,
VA... (Extra measurement)
33
5.10Timer
34
5.11 Display
34
5.12
Off
delay
35
5.13
0-Level
filter
35
5.14
Save/Recall
36
5.15 Remote control
36
5.16 Language
37
5.17
SW 37
6 How
to
operate
SVERKER
38
6.1
General
38
6.2 Injecting current - General
rules
38
Output
alarm
38
6.3 Selecting the correct current output
39
6.4 Measuring current
39
6.5 Setting
the
desired current
40
6.6 Finding pick-up and drop-out limits for over
current/voltage/other
entity relays
41
6.7 Finding pick-up
and
drop-out limits for under
current/voltage/other
entity relays
42
6.8 Measuring operating times for over current/
voltage/other entity relays
43
6.9 Measuring operating times for under (cur-
rent/voltage/other
entity) relays
44
6.10 Measuring voltage
44
?m
SVERKER
750/780
ZP-CD03E
CD0795IE
6.11 Obtaining the correct
phase
angle when
two
or
more
AC
outputs
are
being used ..45
6.12 Generating higher voltages
45
6.13 Setting
an
auxiliary voltage
46
6.14 Testing voltage relays - both pre-fault
and
fault
voltages
46
6.15 Changing the current and voltage
phase
dif-
ference
47
SVERKER
750
47
SVERKER
780
47
6.16 Measuring
the
phase
angle
48
6.17 Measuring external
cycle
time (measure-
ment not initiated
by SVERKER) 49
6.18 Measuring
Z, R R, X, VA, VAR
and
COS
(p. 49
6.19 Plotting a magnetization curve
50
6.20 Testing
an
automatic recloser
50
6.21 Measuring the
trip
pulse length
51
6.22 Injecting current - External start
52
7
Application
examples
54
7.1 Testing voltage relays
54
7.2 Testing over-current relays
55
7.3 Testing directional over-current relay systems
or directional ground-fault (earth-fault)
relay systems
57
SVERKER
780
57
SVERKER
750
58
7.4 Testing power relays
60
7.5 Testing undervoltage relays
61
Test hook-up and
initial
settings
61
7.6 Testing motor overload
releases
and overcur-
rent
cut-outs that grant/deny starting per-
mission
63
7.7 Testing frequency relays
63
8
Troubleshooting
64
8.1
General
'. 64
8.2 Displayed
values
64
8.3 Error
messages
etc 65
9
Specifications
66
Specifications
SVERKER
750/780
66
Specifications extended
67
Maximum load times for different currents....
67
The voltage outputs
of
the current source
67
Separate
AC
voltage source
67
Auxiliary
DC
voltage output
67
Inputs
68
Make/Break
contact
68
Measurement section
68
Extra measurements
69
Other
69
Index
72
CD0795IE
ZP-CD03E
SVERKER
750/780
Safety
Symbols
on the
instrument
Caution, refer to accompanying documents.
Protective conductor terminal.
WEEE,
Waste
Electrical and Electronic
Equipment.
Please
utilize your local
WEEE
collection facilities in the dispo-
sition
of
this product and otherwise
observe all applicable requirements.
Safety
instructions
A
A
Important
Read
and comply with the following instructions.
Always
comply with local safety regula-
tions-
Warning
First
of
all, connect protective earth
(ground).
Use
the green/yellow cable.
Never
connect the
SVERKER
750/780
to an
external voltage
if
the protective earth
(ground)
is
not connected.
Always
use safety connecting leads.
Always
turn the
SVERKER
750/780 off
before connecting.
Generated
voltages and currents may
be
harmful
to
the operator
or
the
device
under test.
The
SVERKER
750/780 should
be
operated
only
from the type
of
power source
indi-
cated
on
its nameplate.
The
SVERKER
750/780
is
equipped with
a mains plug having a third
(earthing,
grounding)
pin. This plug will only fit into
an earthing/grounding-type power outlet.
The
SVERKER
750/780 must not
be
used
in
other
ways
than stated
by
the manufac-
turer.
Never
spill water
or
other liquid
of any
kind
on
the
SVERKER
750/780.
Unplug the
SVERKER
750/780 from
the
wall outlet before cleaning.
Use a
damp
cloth
for cleaning.
Do
not
use
liquid clean-
ers
or
aerosol cleaners.
Do not
use
auxiliary equipment not
3
SVERKER
750/780
ZP-CD03E
CD0795IE
1 SAFETY
recommended
by
the
SVERKER
750/780
manufacturer since this may
cause
haz-
ards.
Do not attempt
to
service the
SVERK-
ER
750/780 yourself. Opening
or
removing
covers may expose you
to
dangerous volt-
age and other hazards.
Important
For added protection during a lightning
storm,
or
when the
SVERKER
750/780
is left unattended and unused for long
periods
of
time, unplug
it
from the wall
outlet.
This will prevent damage due
to
lightning
and
power line surges.
The maximum load times depends
on the
used current value,
see
chapter 9 under
Specifications extended.
If, for some reason, you need
to
return
your
SVERKER
750/780,
please
use ei-
ther
the original transport box
or
one
of
equivalent strength.
CD0795IE
ZP-CD03E
SVERKER
750/780
2
INTRODUCTION
Introduction
2.1
Applications
SVERKER
750/780
is
intended primarily for testing
relay protection equipment, but
it
can also
be
used for
many other purposes. Virtually all single-phase relay
protection
equipment can
be
tested, and
SVERK-
ER
750/780 can also test three-phase relay protection
equipment
that can
be
tested phase
by
phase. Moreo-
ver, many relay protection systems that require phase
shifting
can be
tested.
Items
that
can be
tested
using
SVERKER
750/780 include:
Efficiency tests
Polarity (direction) tests
Type
of
relay
ANSI
standard
code
Overcurrent relay
50
Inverse time overcurrent relay
51
Undercurrent
relay
37
Ground fault relay
SON, 51N
Directional
overcurrent relay
67
Directional
ground fault relay
67N
Overvoltage relay
59
Undervoltage relay
27
Directional
power relay
32
Power
factor relay 55
Differential
protection
(differential
circuit)
87
Distance protection
equipment
(phase
by
phase)
21
Negative sequence overcurrent
relay
46
Motor
overload protection
51/66
Automatic
reclosing devices
79
Tripping
relay
94
Voltage regulating relay
Underimpedance relay
21
Thermal relay
49
Time-delay relay
Frequency relay
(SVERKER
780)
81
Other
applications
Plotting
excitation curves
Current
and voltage
transformation
ratio tests
Burden measurement for relay protection equipment
Impedance measurement
SVERKER
750/780
ZP-CD03E
CD0795IE
2.2
Design
and
construction
The current source
built
into
SVERKER
can provide
0-10
A,
0-40
A,
0-100
A,
0-250
V AC or
0-300 V DC. Timing and generation (output) can
be
carried out simultaneously.
When
the relay protection
equipment
trips,
both output and timing
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
voltage source
to
supply the relay voltage input.
A 20-220
V DC
voltage source
is
used
to
provide
auxiliary
voltage.
The quality
of
the output signal
is
depending
on the
quality
of
the input voltage.
If
the main voltage
is
distorted
the output signal will also
be
distorted.
However,
the
AC
voltage source
in SVERKER
780
is
fully
synthesized by the instruments itself and there-
fore independent
of
the mains input voltage.
SVERKER is
equipped with a timer, ammeter and
voltmeter,
and these instruments can also
be
used
to
indicate resistance, impedance,
phase
angle, power
and power factor. Moreover, these instruments can
be
used for measurements
in
external circuits.
A set
of
resistors and a capacitor
(SVERKER
750)
are
provided,
and they can
be
connected into the circuits
being tested
to
provide
phase
shifts, fine adjustments
and the like.
A make/break contact can
be
used
to
synchronize
other circuits with tests that are being conducted.
SVERKER
settings are
made
using knobs and other
controls on the control panel. Numerous other settings
can
be
made
via the display window
built
into
the control panel.
CD0795IE
ZP-CD03E
SVERKER
750/780
3
DESCRIPTION
Description
3.1
General
7
Auxiliary
voltage source
This chapter presents a general description
of SVERK-
ER
and the
types
of
functions
it
performs.
For
more
8
Make/Break
contact
This chapter presents a general description
of SVERK-
ER
and the
types
of
functions
it
performs.
For
more
9
Resistor
set and
capacitor
detailed descriptions, please
see
Chapters 4 and
5.
10
Power
supply
11
Computer interface
SVERKER
750
control
panel
12
Start switch
13 Main knob
T°~*r|'
• • • •
SVERKER
780
control
panel
1
Current source
2
Timer
3
Trip
indicator
4 Display
5
Ammeter & voltmeter
6 AC voltage source
-
J I SVERKER
750/780
ZP-CD03E
CD0795IE
3 DESCRIPTION
3.2
Current
source
The main source
built
into
SVERKER
can
pro-
vide 0-100
A,
0-40
A,
0-10
A,
0-250
V AC or
0-300 V DC,
depending
on
which output
is
used.
As
a rule, this current source
is
used
to
provide simulated
sudden-change fault conditions
for the
object being
tested.
Values
are set
using
the
main knob
on
the
control
panel. Current, voltage
and
other settings appear
on
the
display.
See
section
headed
"Ammeter
and
voltmeter".
Generation
is
turned
on
and off
using
the
start switch
which
has
four positions
Indication
State
Used
to
ON+TIME
Current source
is
activated
until
the
object being tested
has operated.
The
time
is
then displayed, whereupon
SVERKER
returns
automatically
to the
OFF
mode*.
Measure
operating times
for
over-current/voltage/
other entity relays.
OFF
Current source
is
turned
off.
Turn
off the
current
source.
ON Current source
is
turned
on
(acti-
vated).
Make
settings
and
find
pick-up / drop-out
limits.
OFF+TIME
Current source
is
turned
off.
When
the object being
tested
has
operated,
the
time
is
displayed, whereupon
SVERKER
returns
automatically
to the
OFF
mode.
Measure
operating times
for
under-current/volt-
age/other entity relays.
*)
When
trip
occurs, generation
is
interrupted after a number
of
mains cycles. This delay simulates
the
circuit breaker's breaking
time.
The
length
of
delay
can
be set by
the
user.
An indicator lamp
to
the
right
of
the set
of
resistors
is lighted during generation. Generation start-up
is
synchronized with
the
mains, thus eliminating inaccu-
racies
in
the
test results attributable
to
the
instant
at
which
the
start switch
is
activated.
There
are a
number
of
different types
of
generation,
and they
are
selected
via
the
display window (Chapter
5)
Type
of
generation
Explanation
Generation that continues
until
the
object being
tested trips
Generation continues
until
the
timer
stops.
Momentary (manuallycontrolled)
generation
This permits
the
user
to
provide
brief,
manually-controlled genera-
tion
that
is
interrupted immediately
when
the
start switch
is
released.
Time-limited
generation Here,
you
can set a
maximum time
for
generation.
When
it
expires,
generation
is
interrupted immedi-
ately.
Restarted
generation
(used
to
test automatic reclosing
devices)
You
can set
the
SVERKER so
that
generation will
be
restarted (start
again) when
the
timer start input
is activated. This feature
is
used
to
test automatic reclosing devices.
CD0795IE
ZP-CD03E
SVERKER
750/780
3 DESCRIPTION
3.3
Timer
Since
the
timer
has a start input and a stop
input,
it
can
be
used
to
measure external
cycles
as
well
as
sequences
initiated
by SVERKER.
The
measured time
appears
in
the
display window.
To test automatic reclosing devices,
SVERKER is
able
to
measure a number
of
sequential time intervals
and
display the results later.
The inputs
can
be
set
individually
to
respond either
to
zero-potential
contact operation
or to a
voltage
(AC
or
DC).
Input
state
indicators
At
each
timer
START
and
STOP
input there
is an
input
state indicator lamp that indicates
the
state
of
the
input.
When
the
indicator lamp
is
lighted,
it
indicates
either a closed circuit (for contact mode)
or
the
pres-
ence
of a
voltage (for voltage mode).
These
indicators
permit
you
to
(for example) check
the
circuits involved
before starting a test sequence.
Start
conditions
The timer
can
be
started
in
the
following ways:
Indication
Start
condition
INT a)
When
an
internal start occurs,
i.e.
for a test
sequence
started
by SVERKER
(ON+TIME
or
OFF+TIME).
b)
When a voltage
is
applied
to
the
start input
or when a contact
is
closed.
c)
When a voltage applied
to
the
start input
vanishes
or
when a contact
is
opened
d)
When
the
state
of
the
input changes.
Stop
conditions
The timer
can
be
stopped
in
the
following ways:
Indication
Stop
condition
INT a)
When
an
outgoing current
is
interrupted
(internal detection).
b)
When a voltage
is
applied
to
the stop input
or when a contact
is
closed.
c)
When a voltage applied
to the
stop input
vanishes
or
when a contact
is
opened.
d)
When
the
state
of
the
input changes.
Measuring
an
external
cycle
Before
measuring,
SVERKER
must
be
set
to the
ON+TIME
state, whereupon
the
timer will also
be
cleared
to
zero.
Clearing
the
timer
The timer will
be
cleared
to
zero when generation
starts again.
Testing
automatic
reclosing
devices
A setting must
be
made
via the
display window before
you
can
test automatic reclosing devices.
ON+TIME
is
lighted
throughout
the
entire cycle. Generation starts
again
each
time
the
timer's start input
is
activated.
SVFRKER
750/780
ZP-CD03E
CD0795IE
3.4
Trip
indicator
When
the
stop condition
is
met,
the TRIP
indicator
is
lighted.
This lamp indicates
tripping
of
the
relay
pro-
tection
equipment.
When a test includes
timing,
this
indicator
lamp flashes when
tripping
occurs.
3 DESCRIPTION
3.5
Display
Current,
voltage
and
other entities
can
be
shown
on
the display.
The display window
is
also used
to
make settings.
To
do
this,
you
must
put
SVERKER in
the
setting mode
by
pressing
the
button marked
MODE.
CD0795IE
ZP-CD03E
SVERKER
750/780
3 DESCRIPTION
3.6
Ammeter & voltmeter
SVERKER
is
equipped with
an
ammeter
and
voltmeter.
These
instruments
can
also
be
used
to
display resist-
ance, impedance, phase angle, power
and
power
factor.
Moreover, these instruments
can
be
used
to
perform
measurements
in
external circuits.
In
both
cases,
the
values appear
on the
display.
The ammeter measures
one
of
the
following:
• Current
at
one
of
the current outputs 0-100
A,
0-40 A or
0-10
A.
• Current
in an
external circuit connected
to
the
SVERKER
750/760 ammeter panel input (marked
®).
You select
the
desired measurement site (test point)
using
the
button marked
A,
whereupon a indicator
lamp lights
at
the
selected measurement site.
The voltmeter shows
the
voltage connected
to
the
voltmeter
input (marked
V) on
the
panel. This input
is
always
activated.
The ammeter
and
voltmeter both change ranges auto-
matically,
but they
can
also
be
changed manually.
For
AC, they measure true
RMS
value.
You can
change
from
AC to DC
and
vice versa.
Note
When
using
AUTO RANGE
the
measured
value
can be
totally wrong.
This
can
happen
when a previous
value
was in
another range
than
the
present
value.
Set
the
correct
range
(see
section
9.5)
and/or
repeat
the
same
test
again.
A
HOLD
(freeze) function permits
you
to
measure volt-
ages
and
currents having duration
as
short
as a
quar-
ter
of
the mains cycle.
When
the
timer
is
stopped,
the
current
and
voltage values
are
frozen.
If
the timer
is
not
stopped,
the
values present when
the
current
was
interrupted
are
frozen.
The
hold function
is
engaged
by pressing
the
button marked
HOLD.
can
some-
times appear during measurement
of
high-speed
AC
cycles
when
the
hold function
is
invoked. This means
that
no
value could
be
presented
because
the
cycle
was too short.
If
O.F.
(means overflow,
i.e. a
value beyond
the
meas-
urement range) appears,
the
cycle being measured
may
have
been
so
fast that there wasn't time for
automatic range changing.
In
such
case,
you
should
repeat
the
measurement.
The
range-changing system
is memory-equipped,
and
repeating your measure-
ment
may
give
it
time
to
make
the
change properly.
When
current and/or voltage fluctuate widely, a filter
can
be
engaged
to
make reading easier.
The
filter
performs
an
averaging
function.
Instead
of
having current
and
voltage shown
in
amperes
and
volts,
you can
have
them shown
as a
percentage
of a
given current
or
voltage
(the
relay
protection
equipment's setting
for
example). A flash-
ing
current value means that
the
value
is
less
than 1 %
of
the range being used.
To
get a more accurate cur-
rent
reading,
you can
then measure
via the
ammeter
input.
14
SVERKER
750/780
ZP-CD03E
CD0795IE
3 DESCRIPTION
3.7
AC
Voltage
source
SVERKER
750
The
AC
voltage source provides 0-120
V AC
(split
into
two
ranges).
It
has two
knobs
of
its own,
one for
rough
and one for
fine settings.
Since
the
AC
voltage
source
is
separated from other outputs,
it is set
inde-
pendently
of
the
current source.
The
AC
voltage source
is
intended primarily for
the
relay protection equipment's voltage input. A set
of
resistors
and a capacitor
can
be
used
to
change
the
phase
angle
of
the
current
and the
voltage.
SVERKER
780
The
AC
voltage source provides 5-220
V AC
with
adjustable phase-angle
and
frequency.
Since
the
AC
voltage source
is
separated from other outputs,
it is
set independently
of
the
current source.
The generated waveform
is
independent from
the
mains
AC
supply
as it is
internally synthesized
by
the
SVERKER
780.
The
AC
voltage source
is
intended primarily for
the
relay protection equipment's voltage input.
Note
For
correct
RMS
readings
the
Ammeter/
Voltmeter
is
automatically
set to the
mains
frequency
at
start
up.
When
the AC
voltage
source
is
switched
on
and
"Frequency"
has
been
selected
as an ad-
ditional
measurement parameter
the
sampling
interval
of the
Ammeter/Voltmeter
is
automat-
ically
set to
measure correctly
at the
selected
frequency
of the AC
voltage source.
In
order
to
supply
an
accurate measurement
for
other
frequencies than
50/60
Hz it
is
nec-
essary
to do the
following adjustment.
1]
Turn
on
the
independent
AC
voltage output.
2]
Enter
the
measurement menu
and
select
Frequency
(U).
3]
Exit
the
menu.
4]
Adjust
to
the
desired frequency.
Note
As
long
as the AC
voltage output
is
turned
on
the
selected
frequency
is
used
for
voltage
and
current measurement.
If
turned
off
the
measurement
returns
to
50/60
Hz.
3.8
Auxiliary
voltage
source
The auxiliary voltage source provides 20-220
V DC
(split
into
two
ranges).
It is
equipped with overcurrent
protection,
and
it is
separate
from
the
other outputs.
Moreover,
it
can
be
used
to
supply
the
relay being
tested.
CD0795IE
ZP-CD03E
SVERKER
750/780
3 DESCRIPTION
3.9
Make/Break
contact
There
is a
make/break contact that
is
actuated when
SVERKER
is
set
to
the
ON+TIME
or
OFF+TIME
state.
It
can
be
used,
for
example,
to
synchronize other
equipment
or
to
change
the
voltage supplied
to
the
relay protection equipment
at
the
start
of a
test from
non-faulty
to
faulty
or
vice
versa.
3.10
Resistor
set and
capacitor
The resistor
set and
capacitor
can
be
used
to
change
the
phase
angle
of
the
current
and
voltage.
Note
There
is no
capacitor
on the
SVERKER
780.
The
phase-angle
is
set
with
the
knob
at the
AC
voltage source.
^3 WFRKER
750/780
ZP-CD03E
CD0795IE
3 DESCRIPTION
3.11
Power supply
The power supply
is
equipped with a miniature circuit
breaker.
3.12
Computer interface
SVERKER
has a serial port
for
communication with
computers
and the
SVERKER Win
software.
To
be
able
to
use the
SVERKER
750/780 with
the
software
SVERKER Win
the
SVERKER
750/780 must
be
"unlocked" with a software
key.
You
can
check
if
your
SVERKER is
"unlocked"
by
doing
the
following.
1]
Press "MODE".
2]
Press T until
you get
to
the
bottom where
the
SW-version
is
displayed.
If
the
text
"PC-
750"
or "SVERKER WIN" is
shown
the
SVERK-
ER is
"unlocked".
If
the
text
is
not
shown
you
must order
the
software
key for
SVERKER
Win,
(Art.
No:
CD-
81000).
When
ordering
you
must mention
the serial number
of
the
SVERKER
750/780.
CD0795IE
ZP-CD03E
SVERKER
750/780
|
4
CONTROL
PANELS
Control panels
1
4.1 Front panels
SVERKER 750
I |
SVERKER
750/780
ZP-CD03E
CD0795IE
4
CONTROL
PANELS
SVERKER 780
4
CONTROL
PANELS
4.2
Current
source
0
Neutral
For current sources.
1
0-100 A current
output
Regulated
with main knob (7).
2
0-40 A current
output
Regulated
with main knob
(7).
3
0-10 A current
output
Regulated
with main knob (7).
4
Indicator lamp,
ammeter test
point
When
this indicator lamp
is
lighted,
SVERKER is
measuring current
at the
associated output.
To
change
the meas-
urement site,
press
the button marked
A (item 19).
5.
0-250
V, 3 A,
AC
AC voltage
is
variable from
0 to
250
V.
Regulated
with main knob
7.
6.
0-300
V, 2 A,
DC
DC voltage is variable from
0 to
300
V.
Regulated
with main knob
7.
7.
Main knob
Used
to
regulate the current source
(outputs 1,
2, 3, 5
and
6).
8.
Indicator lamp
When
this indicator lamp
is
lighted,
the
current source
is
activated (outputs 1,
2,
3, 5 and 6).
9.
F2 Miniature circuit breaker for the current
source.
4 A
(230
V), 8 A
(115
V).
10.
Rx/Cx
Connector for resistor
or
capacitor.
To obtain a smoother characteristic,
connect one
or
more resistors
in
series.
To
change
the
phase
angle
90° (on
SVERKER
750), connect the capacitor.
Note: A jumper must
be
connected
to
this
connector when
it is
not being used.
11.
Start
switch Turns the current source
on
and off.
Use the • and T buttons
to
select
the
desired mode.
. O ON+TIME
OOFF
OON
OOFF+TIME
V
11
Indication
What
is
meant
ON+TIME
Current source
is
activated
until
the object being
tested has operated. The time
is
then displayed,
whereupon
SVERKER
returns automatically
to
the
OFF
mode.
OFF Current source
is
turned off.
ON Current source
is
turned
on
(activated).
OFF+TIME
Current source
is
turned off.
When
the object
being tested has operated, the time
is
displayed,
whereupon
SVERKER
returns automatically
to
the
OFF
mode.
Button
Function
A
Lights the next higher indicator
lamp (one step up).
•
in
setting mode
(MODE
activated)
Moves
up in
the menu
or
increases
the value.
T Lights the next lower indicator
lamp (one step down).
T
in
setting mode
(MODE
activated)
Moves
down
in
the menu
or
de-
creases
the
value
I
SVERKER
750/780
ZP-CD03E
CD0795IE
4
CONTROL
PANELS
4.3
Timer
Indication
Mode
Voltage mode. Detects if voltage is applied
or
not.
Contact mode. Detects if circuit is closed or
not.
Select
either the voltage mode or the contact mode using the
• button (blue). It is the
right
most of the two buttons beneath
STOP
on the control panel.
In the setting mode
(MODE
activated): The • button provides a
move to the
right
on the display.
12.
START
input This is used to start the timer. Max
250
V (AC or DC). The time is shown in
the display
Indication
Condition required
for
timer
start
INT a) Internal.
Used
when
ON+TIME
or
OFF+TIME
is selected.
b)
When
voltage is applied or when a contact
is closed.
-4-
c)
When
applied voltage
vanishes
or when
contact is opened.
d)
When
the state of the input changes.
Select
the desired option using the left most of the two blank-
faced buttons located under
START
on the control panel.
Indication
Mode
Voltage mode. Detects if voltage is applied or
not.
Contact mode. Detects if circuit is closed or
not.
Select
either the voltage mode or the contact mode using the
right
most of the two blank-faced buttons located under
START
on the control panel.
13.
Indicator
lamp
This lamp indicates the state of the
timer
input.
When
this indicator lamp
is lighted voltage is present at the input
(voltage mode) or the circuit is closed
(contact mode).
14.
STOP
input This is used to stop the timer. Max 250
V (AC or DC). The time is shown in the
display.
Indication
Condition required
for
timer
stop
INT
a) Internal.
Used
when
ON+TIME
or
OFF+TIME
is selected.
b)
When
voltage is applied or when a contact is
closed.
-t-
c)
When
applied voltage
vanishes
or when
contact is opened.
-<-+-*-
d)
When
the state of the input changes.
Select
the desired option using the «- button (blue). It is the
left
most of the two buttons located under
STOP
on the control
panel.
In the setting mode
(MODE
activated): The<- button provides a
move to the left on the display.
CD0795IE
ZP-CD03E
SVERKER
750/780
4
CONTROL
PANELS
4.4
Trip
indicator
4.5
Display
TRIP
15
This indicates that the object being
tested has tripped. The fact that tripping
occurred indicates that the conditions
imposed
at
the timer's stop input (item
14)
are
met. This indication
does
not
occur unless the object being tested
is
connected
to
the stop input.
A]
Steadily
glowing indicator lamp:
Indicates tripping when the test
is
being
conducted without timing (start switch
at the
ON position).
B] Flashing indicator lamp:
Indicates tripping when the test
is
being
conducted with timing (start switch
at the
ON+TIME
or
OFF+TIME
position).
It
also
indi-
cates
that timing
is
completed.
SVERKER
then
returns automatically
to
the
OFF
state.
You
can reset the flashing indicator lamp
by
press-
ing
the button marked
HOLD
(item 21) twice.
16
123.
H5S
I2.45R
1BH.BV
MODE
17-
ESC
16.
Display
17.
MODE
but-
ton
This button
changes
the display
from
the measurement mode
(normal mode) to the setting
mode and
vice
versa.
Note
In the
setting
mode (MODE activated):
The
ESC
(blue
text)
button leaves
the
present
menu
option
unchanged
and
proceeds
to the
next
higher menu option.
ZP-CDO
SVERKER
750/780
3E
CD0795IE
4.6
Ammeter & voltmeter
21
19 , 18
I I
®(§)(D©s
HOLD
P 1
CHG
MODE
® X—x
Esc
g
®(®)
M
^
20
18.
Input
marked
A
This
is
the external panel input
to the
SVERKER
ammeter.
It
is activated
by
pressing the button marked A (item
19)
which
is
located
at
right beneath
the
display window. The indicator lamp ad-
jacent to this input
is
lighted
to
indicate
that
the input is activated.
F4 6 A:
Min-
iature circuit breaker for the ammeter.
19.
Button marked A This button
is
used
to
transfer the am-
meter test point to current outputs 1,
2,
3
or to
select the external panel input
to
the
SVERKER
ammeter (item 18).
The
current value
is
shown
on
the display.
Note:
In the
setting
mode (MODE acti-
vated):
The SEL
(blue
text)
button
selects
the
menu
option
that
is
displayed.
20.
Input
marked
V
This
is
the input to the
SVERKER
volt-
meter, and
it is
always
activated.
The
voltage value is shown
on
the display.
21.
Button marked
HOLD
This button freezes the prevailing current
and voltage
values
when the object
being tested
is
tripped
or
when genera-
tion
stops.
If
tripping does not occur,
the
prevailing value is frozen when
SVERKER
changes
to
the
OFF
state. The hold
(freeze) function
is
toggled
on
and off
by pressing this button
When
you turn the hold function off,
the flashing
trip
indicator
15 is
reset.
Moreover,
SVERKER
senses
the state
of
timer
stop input 14
(STOP),
thus making
it
possible
to
respond
if a
change occurs
at this input. This is valid only while
the
input
is in
change sensing state
(b + c,
see item 14).
Note
In the
setting
mode (MODE activated):
The
CHG
(blue
text)
button
opens
the
displayed
menu
option
so
that
it can be
changed.
CHG,
ESC and SEL are
imprinted
on the
faces
of
the
buttons
marked HOLD, MODE
and A
respectively.
These
imprints
(CHG, ESC
and
SEL)
apply only when SVERKER
is in the
set-
ting
mode. The panel markings (HOLD, MODE
and
A)
apply when SVERKER
is in its
normal
mode,
i.e. the
measurement mode.
4
CONTROL
PANELS
4.7 AC
Voltage
source
SVERKER
750
0-120V
AC 9
(<D(<D
«
22
04
<
26
00
<
26
23
25
22.
0-120
VAC
Separate,
independent output for
AC
voltage.
Can be
varied from
0 to
120
V
using knobs (23) and (24).
23.
Knob For fine adjustment
of AC
voltage (22).
24.
Knob For rough adjustment
of AC
voltage
(22).
25.
0-60,
60-120
switch
This
is
used
to
toggle between
the
0-60 V and 60-120
V AC
voltage ranges.
26.
I/O.
ON/OFF
switch
For the
AC
voltage source.
SVERKER
780
22.
5-220
VAC
Separate,
independent output for
AC
voltage.
23.
Knob For setting the
AC
amplitude.
43.
Knob For adjustment
of
the phase-angle
or
frequency.
Turning
the knob
in
Phase
mode will
adjust the
phase
angle
by 10° or 1°.
Press
the knob to swop between
coarse
and fine steps.
Turning
the knob
in
Frequency mode
will
adjust frequency
by 10
Hz, 1 Hz,
0.1
Hz
or
0.001 Hz.
Press
the knob
to
swop
between the steps. The selected step
is
shown
at
the display.
44.
I/O.
ON/OFF
switch
For the
AC
voltage source.
45
LED Blinks
if
error
is
detected.
CD0795IE
ZP-CD03E
SVERKER
750/780
23
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