Table of Contents
Advertisement
12
Synchrocheck and energizing check (SYN)
Synchrocheck and energizing check (SYN)
This section contains instructions on how to test the synchro-check and energizing check for sin-
gle and double CB with/without phasing function and for 1 1/2 breaker arrangements.
Prepare the terminal for verification of settings as outlined in
chapter.
At periodical checks, the functions should preferably be tested with the used settings. To test a
specific function, it might be necessary to change some setting parameters, for example:
•
AutoEnerg = On/Off/DLLB/DBLL/Both
•
ManEnerg = Off
•
Operation = Off, On
•
Activation of the voltage selection function if applicable
The tests explained in the test procedures below describe the settings, which can be used as ref-
erences during testing before the final settings are specified. After testing, restore the equipment
to the normal or desired settings.
A secondary injection test set with the possibility to alter the phase angle by regulation of the
resistive and reactive components is needed. Here, the phase angle meter is also needed. To per-
form an accurate test of the frequency difference, a frequency generator at one of the input volt-
ages is needed.
Figure
19shows the general test connection principle, which can be used during testing. This de-
scription describes the test of the version intended for one bay.
Figure
20shows the general test connection for a 1 1/2 CB diameter with one-phase voltage con-
nected to the line side.
Chapter 13
Verifying settings by secondary
section 2 "Preparing for
injection
test"in this
105
Advertisement
Table of Contents
