Basler Electric BE1-700 - Manual (Page 16)

Trip Circuit Monitoring
A trip circuit monitor function is provided to monitor the trip circuit of a breaker or lockout relay for loss of
voltage (fuse blown) or loss of continuity (trip coil open). The monitoring input is internally connected
across OUT1. Additional trip or close circuit monitors can be implemented in BESTlogic using additional
inputs, logic timers, and programmable logic alarms.
Fault Reporting
Fault reports consist of simple target information, fault summary reports, and detailed oscillography
records to enable the user to retrieve information about disturbances in as much detail as is desired. The
relay records and reports oscillography data in industry standard IEEE, Comtrade format to allow using
any fault analysis software. Basler Electric provides a Windows
® based program called BESTwave™ that
can read and plot binary or ASCII format files that are in the COMTRADE format.
Sequence of Events Recorder
A 255 event Sequence of Events Recorder (SER) is provided that records and time stamps all relay
inputs and outputs as well as all alarm conditions monitored by the relay. Time stamp resolution is to the
nearest half-cycle. I/O and Alarm reports can be extracted from the records as well as reports of events
recorded during the time span associated with a specific fault report.
Alarm Function
Extensive self-diagnostics will trigger a fatal relay trouble alarm if any of the relay core functions are
adversely affected. Fatal relay trouble alarms are not programmable and are dedicated to the Alarm
Output (OUTA) and the front panel Relay Trouble LED. Additional relay trouble alarms and all other alarm
functions are programmable for major or minor priority. Programmed alarms are indicated by major and
minor alarm LEDs on the front panel. Major and minor alarm points can also be programmed to any
output contact including OUTA. Over 20 alarm conditions are available to be monitored including user
definable logic conditions using BESTlogic.
Active alarms can be read and reset from the front panel HMI or from the communication ports. A
historical sequence of events report with time stamps lists when each alarm occurred and cleared. These
reports are available through the communication ports.
Version Report
The version of the embedded software (firmware) is available from the front panel HMI or the
communication ports. The unit serial number and style number is also available through the
communication port.
BESTlogic Programmable Logic
Each BE1-700 protection and control function is implemented in an independent function element. Every
function block is equivalent to its single function, discrete device counterpart so it is immediately familiar
to the protection engineer. Each independent function block has all of the inputs and outputs that the
discrete component counterpart might have. Programming with BESTlogic is equivalent to choosing the
devices required by your protection and control scheme and then drawing schematic diagrams to connect
the inputs and outputs to obtain the desired operating logic.
Several preprogrammed logic schemes and a set of custom logic settings are provided. A
preprogrammed scheme can be activated by merely selecting it. Custom logic settings allow you to tailor
the relay functionality to match the needs of your operation's practices and power system requirements.
Write Access Security
Security can be defined for three distinct functional access areas: Settings, Reports, and Control. Each
access area can be assigned its own password. A global password provides access to all three functional
areas. Each of the four passwords can be unique or multiple access areas can share the same password.
A second dimension of security is provided by allowing the user to restrict access for any of the access
areas to only specific communication ports. For example, you could set up security to deny access to
control commands from the Ethernet port that is connected through a modem to a telephone line.
Security settings only affect write access.
Human-Machine Interface (HMI)
Each BE1-700 comes with a front panel display with five LED indicators for Power Supply Status, Relay
Trouble Alarm, Minor Alarm, Major Alarm, and Trip. The lighted, liquid crystal display (LCD) allows the
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