Chapter 3 Functions - Omron KE1 User Manual

Chapter 3.
3.1
3.2
3-3
3.4
3.5
3.6
3.7
Functions
List of functions .......................................................................................... 3-2
Basic functions ........................................................................................... 3-3
 Applicable phase wire ............................................................................................................. 3-3
 Synchronization selection for measuring block .............................................................. 3-3
 Dedicated CT type.................................................................................................................... 3-3
 VT ratio......................................................................................................................................... 3-4
 CT ratio......................................................................................................................................... 3-4
 Low-cut function ........................................................................................................................ 3-5
 Low-cut current value ...................................................................................................... 3-5
 Leakage Low-cut current value.................................................................................... 3-5
 Average count .................................................................................................................... 3-5
 Logging function........................................................................................................................ 3-6
 CT signal detection .................................................................................................................. 3-6
 Measurement function ............................................................................................................ 3-7
 Active power ....................................................................................................................... 3-7
 Integrated power amount ............................................................................................... 3-7
 Current.................................................................................................................................. 3-8
 Voltage.................................................................................................................................. 3-8
 Power factor........................................................................................................................ 3-8
 Reactive power .................................................................................................................. 3-8
 Frequency............................................................................................................................ 3-9
 Leakage................................................................................................................................ 3-9
Voltage sag (instantaneous voltage drop) detection function...... 3-10
 Object subject to monitoring of voltage sag ..................................................................3-10
 Setting of conditions for voltage sag detection.............................................................3-11
 Voltage sag history.................................................................................................................3-11
 Operation at the time of power supply voltage sag (power failure) .......................3-12
 Examples of operations for voltage sag detection ......................................................3-13
Leakage detection function ................................................................... 3-14
 Detection function...................................................................................................................3-14
 Logging of measured value.................................................................................................3-14
 Available CT .............................................................................................................................3-14
 Notes...........................................................................................................................................3-14
 Installation examples.............................................................................................................3-15
Voltage/current monitoring function.................................................... 3-16
 Overvoltage/undervoltage....................................................................................................3-16
 Overcurrent/undercurrent.....................................................................................................3-16
 Open phase (Fixed unbalance factor) .............................................................................3-17
 Opposite phase .......................................................................................................................3-17
Output function ......................................................................................... 3-18
 Ouptut terminal 1/output terminal 2/output terminal 3 function setting.................3-18
 Integrated power amount pulse output............................................................................3-18
 Pulse output unit..............................................................................................................3-19
 Voltage sag alarm output .....................................................................................................3-19
 Leakage alarm output ...........................................................................................................3-20
 Open phase (fixed unbalance factor) alarm output.....................................................3-20
 Opposite phase alarm output .............................................................................................3-20
 Alarm output .............................................................................................................................3-21
 Alarm history.....................................................................................................................3-21
 Time chart of alarm output function ..........................................................................3-21
 Active input setting .........................................................................................................3-22
 Active power alarm output ...........................................................................................3-22
 Over current alarm output ............................................................................................3-23
 Under current alarm output..........................................................................................3-23
 Over voltage alarm output............................................................................................3-23
 Under voltage alarm output .........................................................................................3-24
 Power factor alarm output............................................................................................3-24
 Reactive power alarm output ......................................................................................3-24
Other functions ......................................................................................... 3-25
 Simple measurement ............................................................................................................3-25
 Electric energy conversion coefficient .............................................................................3-25
 Time.............................................................................................................................................3-25
 Initialization ...............................................................................................................................3-26