Megger EGIL, Руководство пользователя

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Recall
Here you recall the settings that you have saved in
EGIL’s memory.
0...9
Recall settings that have been saved in memory area 0
- 9. Memory 0 is recalled automatically at power on.
Default
Recall default settings.
The default settings are set at the factory. They are
stored in memory 0 - 9. If you want to use the default
settings every time EGIL is switched on do as fol-
lows. Choose RECALL, DEFAULT and SAVE choosing
memory 0.
Calibration
Calibration is used for calibrating the internal current
axis channel and the motion channel. Refer to instruc-
tions on calibrating in chapter 12 “Calibration”.
Option - >
Analog channel (option)
Here you can set parameters for measuring motion,
among other things.
The analog channel in EGIL is primarily intended for
measuring motion but can also be used to measure
current via a current shunt. It can also be used to
measure voltage directly or via a voltage divider.
The table below shows the possible choices in the
ANALOG CHANNEL menu.
Menu
heading Sub menu Function
Motion Stroke Fill in the circuit breaker's
estimated stroke. Subsequent
measurements use the stroke
length method.
Calibrate Calibrating transducer via the
calibration routine. Subsequent
measurements use the stroke
length method.
Transducer
length Fill in transducer's electrical
length. Subsequent measure-
ments use the stroke length
method..
Current Current
shunt State the shunt resistance to
measure current trough an
external shunt.
Voltage Ext. Voltage
divider State the voltage divider's posi-
tion to measure voltage using
EGIL's MOTION input directly,
or via the voltage divider.
Off "Select ""OFF"" to turn off
the analog channel. It is impor-
tant that it is turned off if it is
not in use."
First you choose which type of measurement you
want to perform. Choose between MOTION, CUR-
RENT and VOLTAGE.
Note
If you are not using the analog channel, it is
important that you deactivate the function by
selecting the position “Off”. Otherwise, there
is a risk that you will get the error message
“Not calibrated” since the motion channel
expects events during a recording
Choice MOTION
If you choose MOTION from the ANALOG CHANNEL
menu, you have three alternatives: STOkE, CALI-
BRATING or TRANSD LENGTH. Options STROkE and
TRANSD LENGTH represent two different measure-
ment methods. These are described below.
CALIBRATING is used to determine the transducer’s
electrical length. This is used when you measure ac-
cording the transducer length methodology.
Measurement Method STROKE
This method is suitable if you cannot directly connect
the transducer to the moving contact. The principle
behind this method is that you enter the breaker’s
estimated stroke in EGIL. When the first measurement
is taken after EGIL is turned on, (it must be an single
operation ), EGIL establishes a scaling factor from the
difference between close and open position at the
transducer and the given stroke. It does not matter if
you use a linear or rotating transducer or how much
the transducer moves in reality. This measurement
method is also named "Relative measurement".
Example:
1]
Choose MOTION and STROKE
2]
Enter the breaker’s estimated stroke when
EGIL prompts you to do so. Press
ENTER . The
value you enter will be valid until you enter a
new estimated stroke, change measurement
method, calibrate a transducer or turn off
EGIL.
3]
Perform a measurement. The first measure-
ment that is taken must be a single opera-
tion.
Measurement Method TRANSDUCER
LENGTH
This method works best when you can directly con-
nect the transducer to the moving contact. you
enter the transducer’s length instead of the breaker’s
estimated stroke. By using the transducer’s length as a
reference, EGIL can then measure the breaker’s stroke.
This measurement method is also named "Absolute
measurement".
BM0087OE ZP-BM01E EGIL 31
7 MENU OPTIONS AND PARAMETER SETTINGS