Tracking Frequency; Flexelements - GE M60 Instruction Manual

CHAPTER 6: ACTUAL VALUES
The following metered values are available for the broken rotor bar detection feature.
— This value indicates the level of the broken rotor bar spectral component relative to the spectral
COMPONENT LEVEL
component of the system frequency.
— Indicates the frequency of the broken rotor bar spectral component.
COMPONENT FREQ
— Indicates the average motor load at the time of the broken rotor bar data acquisition stage.
MOTOR LOAD AT BRB CALC.
— Indicates the motor load standard deviation at the time of the broken rotor bar data acquisition
LOAD DEV.AT BRB CALC.
stage.
— Indicates the time stamp of the broken rotor bar calculation.
TIME OF BRB CALC.
— Indicates the learned maximum level of the broken rotor bar spectral component since the
MAXIMUM COMPONENT LEVEL
last data clear.
— Indicates the frequency of the learned maximum broken rotor bar spectral component.
MAXIMUM COMPONENT FREQ.
— Indicates the average motor load at the time when data for the maximum broken rotor bar was
MOTOR LOAD AT BRB MAX
acquired.
— Indicates the motor load standard deviation at the time when data for the maximum broken rotor
LOAD DEV. AT BRB MAX
bar was acquired.
— Indicates the time stamp of the maximum broken rotor bar component level.
TIME OF MAXIMUM BRB

6.4.7 Tracking frequency

ACTUAL VALUES  METERING  TRACKING FREQUENCY
 TRACKING FREQUENCY

The tracking frequency displays here. The frequency is tracked based on the selection of the reference source with the
FREQUENCY AND PHASE REFERENCE
System section of chapter 5 for details.

6.4.8 FlexElements

ACTUAL VALUES  METERING  FLEXELEMENTS  FLEXELEMENT 1(16)
 FLEXELEMENT 1

The operating signals for the FlexElements are displayed in pu values using the following definitions of the base units.
M60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
LOAD DEV.AT BRB

CALC.: 0.01 x FLA
TIME OF BRB CALC.:

2009/03/05 10:22:39
MAXIMUM COMPONENT

LEVEL: -58.3 dB
MAXIMUM COMPONENT

FREQ.: 62.05 Hz
MOTOR LOAD AT BRB

MAX: 0.95 x FLA
LOAD DEV. AT BRB

MAX: 0.02 x FLA
TIME OF MAXIMUM BRB:

2009/03/04 11:32:18
TRACKING FREQUENCY:

60.00 Hz
setting in the
SETTINGS  SYSTEM SETUP  POWER SYSTEM
FLEXELEMENT 1

OpSig: 0.000
METERING
menu. See the Power
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