CHAPTER 7: RECORDS MOTOR START STATISTICS869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 7–3• True RMS values of the phase A-B, B-C and C-A voltages (Vab, Vbc, and Vca) if VT isdelta connected.• Three-phase real power.• Three-phase reactive power.• Three-phase power factor.• Thermal capacity used (%).• Frequency.• Motor status.1-second pre-trigger data and 59-second post-trigger data are recorded. The data recordignores all subsequent triggers and continues to record data until the active record isfinished.A total of 6 records are stored in the relay. Record # 1 is the baseline record; it is written toonly by the first start that occurs after the user clears the motor start records. Records #2to 6 are a rolling buffer of the last 5 motor starts. A new record automatically shifts therolling buffer and overwrites the oldest record, #2.The record files are formatted using the COMTRADE file format. The files can bedownloaded and displayed via EnerVista 8 Series Setup software. All the files are stored innon-volatile memory, so that information is retained when power to the relay is lost.The viewing, customizing and saving the Motor Start Records is the same as the TransientRecords.Clearing start records (RECORDS > CLEAR RECORDS > MOTOR START RECORDS) clears thestored files. The date and time are recorded when clearing. An event ‘Clear Start Rec’ issent to the Event Record. The records can also be cleared using EnerVista 8 Series Setup.Path: Records > Motor Start RecordsMotor Start StatisticsPath: Records > Motor Start Statistics 1(5)START DATE/TIMERange: mm/dd/yy and hh:mm:ssDefault: 01/01/08 and 00:00:00START ACCELERATION TIMERange: 0.000 to 250.000 s in steps of 0.001Default: 0.000 sSTART EFFECTIVE CURRENTRange: 0.00 to 20.00 x FLA in steps of 0.01Default: 0.00 x FLASTART PEAK CURRENTRange: 0.00 to 20.00 x FLA in steps of 0.01Default: 0.00 x FLAUp to five starts are reported. When the buffer is full the newest record overwrites theoldest one.
