Basler BE1-CDS220, Instruction Manual

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2-6 Quick Start BE1-CDS220
The GUI also has the same preprogrammed logic schemes that are stored in the relay. This gives the
engineer the option (off-line) of developing his setting file using a preprogrammed logic scheme,
customizing a preprogrammed logic scheme, or building a scheme from scratch. Files may be exported
from the GUI to a text editor where they can be reviewed or modified. The modified text file may then be
uploaded to the relay. After it is uploaded to the relay, it can be brought into the GUI, but it cannot be
brought directly into the GUI from the text file. The GUI logic builder uses basic AND/OR gate logic
combined with point and click variables to build the logic expressions. This reduces the design time and
increases dependability.
The GUI also allows for downloading industry standard COMTRADE files for analysis of stored
oscillography data. Detailed analysis of the oscillography files may be accomplished using Basler
Electric's BESTWAVE software. For more information on Basler Electric's Windows

based BESTCOMS
(GUI) software, refer to Section 14, BESTCOMS Software. For information on BESTWAVE, contact your
local sales representative or the Basler Electric Technical Support Services Department in Highland,
Illinois.
GETTING STARTED
Connections
Figure 12-12, in Section 12, Installation, shows typical external dc control connections. If your relay has
Power Supply Option Y or Z, it can be supplied by normal 120 V ac house power. These two power
supply options (Y and Z) are the midrange and high range AC/DC power supplies. The contact sensing
inputs are half-wave rectified opto-isolators. The default contact recognition and debounce settings
enable their use on ac signals as well as dc signals.
Section 12 also shows typical external ac sensing connections. The relay measures the A phase, B
phase, and C phase current magnitudes directly from the three current sensing inputs on Circuit #1 (this
is dependent on style configuration). Circuit #2 measures the A phase, B phase, and C phase current
magnitudes directly from the three current sensing inputs. The neutral and negative-sequence
magnitudes are calculated from the fundamental component of each of the three-phase currents. When
evaluating the negative-sequence functions, the relay can be tested using a two-phase current source. To
fully evaluate the operation of the relay in the power system, it is desirable to use a three-phase current
source.
Connect a computer to the front RS-232 port (refer to Section 12, Installation, for connection diagrams).
Apply power and set the clock using the RG-TIME= and RG-DATE= commands (refer to Appendix C,
Terminal Communication, and Section 11, ASCII Command Interface, for additional information).
Entering Test Settings
Use BESTOMS to enter test settings (see Section 14, BESTCOMS Software, for details) or enter SG (Set
General) to get a listing of the general setting commands with default parameters and put them in a text
file as described previously in Batch Command Text File Operations. Then enter S0 (Setting Group Zero)
to get a listing of the Setting Group 0 protection setting commands with default parameters and put them
in a text file. With these two subgroups of settings, you will not see the global security settings, user
programmable BESTlogic settings, settings for protection Setting Groups 1, 2, and 3, settings for alarm
functions, and the settings for breaker monitoring functions.
Open the SG file in a text editor, change settings as required, and save the changes. For example:
•
The ratios for the phase and neutral current transformers (CT2, CTG).
•
The demand interval and CT circuit to monitor for the phase, neutral, and negative-sequence
currents (DIP, DIN, and DIQ).
•
The nominal system frequency (FREQ).
•
The normal phase-sequence (ABC or ACB) for the system (PHROT).
Open the S0 file in a text editor, change settings, as required, and save the changes. For example:
•
The differential taps setting by putting the 87 function in manual and selecting tap values (87).
•
The pickup, time dial, and curve for the 51 functions (51P, 51N, 51Q).
While editing this file, it is necessary to set a logic scheme to be active using the SL-N= (Set Protection
LOGIC) command. The default setting is BASIC-87, which means that several protection elements are