Basler Electric GENERATOR PROTECTION SYSTEM BE1-GPS100

can be used to trip and close additional switches or breakers, or enable and disable certain functions.

Metering Functions

Metering is provided for all measured currents, voltages, and frequency and all derived neutral and

negative-sequence currents and voltages. Three phase watts, vars, and power factor is provided. Per

phase watts and vars is also provided when the VT connection is 4W.

Reporting and Alarm Functions

Several reporting and alarm functions provide fault reporting, demand, breaker, and trip circuit monitoring,

as well as relay diagnostic and firmware information.

Energy Data Reporting

Energy information in the form of watt-hours and var-hours is measured and reported by the BE1

GPS100. Both positive and negative values are reported in three-phase, primary units.

Relay Identification

Two free-form fields are provided for the user to enter information to identify the relay. These fields are

used by many of the reporting functions to identify the relay that the report is from. Examples of relay

identification field uses are station name, circuit number, relay system, purchase order, and others.

Clock

A real-time clock is included with a capacitor backup and is available with an optional battery backup.

Depending upon conditions, capacitor backup maintains timekeeping during an eight to 24 hour loss of

operating power. Battery backup maintains timekeeping when operating power is removed for five years

or longer.

IRIG

A standard IRIG input is provided for receiving time synchronization signals from a master clock.

Automatic daylight saving time compensation can be enabled. Time reporting is settable for 12 or 24-hour

format. The date can be formatted as mm/dd/yy or dd/mm/yy.

General Status Reporting

The BE1-GPS100 provides extensive general status reporting for monitoring, commissioning, and

troubleshooting. Status reports are available from the front panel HMI or communication ports.

Demand Reporting

Ampere demand registers monitor phase A, B, C, Neutral, ±Power (kW), ±Reactive Power (kvar), and

Negative-Sequence values. The demand interval and demand calculation method are independently

settable for phase, neutral, and negative measurements. Demand reporting records today's peak,

yesterday's peak, and peak since reset with time stamps for each register.

Breaker Monitoring

Breaker statistics are recorded for a single breaker. They include the number of operations, accumulated

interrupted I or I2. and breaker time to trip. Each of these conditions can be set to trigger an alarm.

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-GPS100 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.