Megger SVERKER 900 User manual

Home menu
Main instrument
Prefault - Fault instrument
Ramping instrument
Sequencer instrument
CT-Magnetizaton instrument
Impedance instrument
Test File Manager
System configuration
Settings for UG / IG
General
Home menu
Confirm
Run
Exit
Browse left/right
BI1 The trigger level can be
defined when voltage mode is
selected.
BI2 – BI4 The trigger levels are
fixed.
Red dot Input is active.
≥1 Input is logic connected to
another input with OR function.
&Input is logic connected
to another input with AND
function.
SVERKER 900 Relay and Substation Test System Quick Guide
Voltage and current
generators (UG and IG)
Press to toggle
OFF / ON.
Set % of basic & harmonic
freq. equal for generators.
Equals values for current,
voltage and frequency.
Balances the phase angle
values.
0 VDC U4-DC: Setting the voltage
for the U4 generator.
Configuration of the binary
inputs.
Ext Timer & BI1-BI4
Internal Start/Stop
The Ext Timer follows the
ON/OFF generating mode.
A voltage is applied to the
input or when a contact is
closed.
A voltage applied to the
input vanishes or when a
contact is opened.
When the state of the input
changes.
Voltage mode. Detects if
voltage is applied or not.
Contact mode. Detects if
circuit is closed or not.
Turns on the selected binary
input.
Turns off the selected binary
input.
Main instrument
OFF+TIME: Current
source is turned off. When
the object being tested
has operated, the time is
displayed. SVERKER returns
to OFF mode.
A lamp at the input is on
when voltage is present or
the circuit is closed.
ON+TIME Current source
is activated until the object
being tested has operated.
The time is displayed and
SVERKER returns to OFF
mode.
HOLD
Main: Freezes Pick-up and
Drop-off voltage/current.
Measuring: Sets
the instrument into
measurement mode. To
stop measurement mode,
press the button again.
Measurement mode is not
settable if Advanced mode
is selected in the system
configuration menu.
View the Frequency (Hz),
Power (VA and W) ,
Impedance (R and Z) and
phase angle values.
Test file manager
Quick save
SAVE Test
OPEN Test
Save to USB
Open USB
Create new test file
Open test file library
View test
Edit test
Delete
From all instruments you can save any
test results or test configuration in
SVERKER 900 persistent storage or to
an external USB memory.
When you save a test the first time you
select where to save the test. A second
test will by default be saved in the
previous used test file.
Configuration for UG/ IG
Generators separate
Generators in series
Generators in parallel
Use as a fourth generator or
as an auxiliary power source
Select AC or DC
Safety
Always comply with local safety regulations when using SVERKER 900.
Read and comply with the safety instructions in the User’s manual before using SVERKER 900.

Sequencer instrument
Copy or delete
state
Go to first / last state
Go forward / backward
between states
Activates BI & Stop
condition for selected state
Set the time for
selected state
Set the end of sequence
Select BO position
Set voltage or contact sense
on B1
Stop condition for selected
state
Set contact condition for
the binary inputs
Edit
Insert selected state
Insert and replace state
Copy selected state
Delete state
Ramping instrument
Set ramp start
Set ramp speed
Set ramp stop
Test mode view (initiate a
ramp test)
The Ramping test is very similar to the
Prefault->Fault scenario. The difference
is that you can configure a ramping
condition, between the Prefault and
the Fault state. This includes the step-
changes in voltage, current, phase and/
or frequency, as well as the ramping
time duration.
Measurement mode, see main
instrument, can only be set in “Set
ramp start” mode.
CT magnetization instrument
Set maximum voltage
Possible in all test modes
Set maximum current
Possible in all test modes
Manual test mode
Automatic test mode
In the lid is an accessory, CTM,
placed that is to be used for the CT
magnetization instrument.
The CT magnetization instrument is
used to determine the knee point
voltage of a current transformer.
In CT-mode SVERKER 900 can generate
up to 900 V by connecting the four
voltage generators in series and 300V
by connecting the four voltage in
parallel.
Impedance instrument
Prefault
Fault + Manual pickup
search
Prefault-Fault
Manual binary search
Configuration
Advanced configuration
CT direction
Cartesian diagram
Polar diagram
Reset to factory settings
Using the Impedance instrument you
configure sequence(s) with different
states including impedance entry mode
for fault state(s).
Prefault - Fault instrument
Prefault
Select generators to be
active and configure the
voltage, current, phase and
frequency parameters for
each.
Fault + Time
+ Configure the two timing
parameters; the max time
duration, for how long the
Fault state will be generated
and the off delay duration,
which is the time period
after the test object has
triggered and until the
output generation will be
switched off.
Prefault-Fault
Generates the Prefault
condition for the set time
duration and then change
to Fault state until any of
the following conditions are
met:
▪Maximum configured time
duration has time-out
▪Test object trips
▪You press the stop button

Megger Sweden AB
Box 724
SE-182 17 DANDERYD
SWEDEN
T [phone]
F [phone]
[e-mail]
www.megger.com
Subject to change without notice. Printed matter No. ZO-CR01E • Doc. CR0273FE • V05a • 2016

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