Basler BE1-951 User Manual

2-6 BE1-951 Quick Start 9328900990 Rev L
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 Basler Electric, Technical Support Services Department in Highland, Illinois.
GETTING STARTED
If your relay has Power Supply Option 1 or 2, it can be supplied by normal 120 Vac house power. These
two power supply options (1 and 2) 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.
The BE1-951 measures the A phase, B phase, and C phase current magnitudes and angles directly from
the three current sensing inputs. The neutral, positive, and negative-sequence magnitudes and angles
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 single-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 Enter A= to gain setting access. Set the clock using the RG-TIME= and RG-DATE=
commands. (Refer to Section 11, ASCII Command Interface, for additional information.)
Entering Test Settings
Enter SG (S
etting 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 0) to get a listing of the group 0 protection setting commands with default parameters and
put them in a text file also. With these two sub-groups of settings, you will not see the global security
settings, user programmable BESTlogic settings, settings for protection Setting Groups 0 and 1, 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 (CTP, CTG).
• The demand interval and CT circuit to monitor for the phase, neutral and negative-sequence
currents (DIP, DIN, DIQ).
• The nominal system frequency (FREQ).
• The normal phase-sequence (ABC or ACB, nominal secondary voltage and current) for the
system (PHROT).
• Open the S0 file in a text editor, change settings as required, and save the changes.
Do not forget to add E;Y (Exit; Save Settings? Yes) to the end of both files. Enter A= to gain setting
access and then send each of these text files to the relay as described above under Batch Command
Text File Operations.
As you gain knowledge of the relay, you can experiment with the rest of the settings. To set up a file with
all user settings, enter S and the relay will respond with all settings in command format. For
documentation, the user should use the Print command in BESTCOMS settings.
Default settings can be found several different ways. The default preprogrammed logic scheme is
IPS100-1547-A-BE. Section 8, Application, lists all of the default logic settings for the default logic
scheme. If you wanted to know the default logic setting for relay output 3 (VO3), you could look at the
default listing and find that SL-VO3=51PT. Translated, this means that the setting, logic – Virtual Output 3
is TRUE (1) when the phase time-overcurrent element trips. You could also look in Section 4, Protection
and Control, find the table for the logic settings. It lists the same information, but it lists the mode and
block inputs separately. If you want to find the default settings for an input or output, look in Section 3,
Input and Output Functions.

Basler BE1-951 Specifications

General

Brand	Basler
Model	BE1-951
Category	Surge Protector
Language	English