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6.3 LCD description
Display On LCD
:
UA UB UC UAB UBC UCA IA IB IC ΣP ΣQ COSΦ f Heat
ia1 ib1 ic1 ia2 ib2 ic2 i0 Ida Idb Idc Iza Izb Izc u2 i1 i2
Explain:
UA、UB、UC : the first three phase voltage;
UAB UBC UCA: the first line voltage;
IA、IB、IC : the first three phase measurement current;
ΣP : the firs three phase total active power;
ΣQ : the firs three phase total reactive power;
COSΦ : power factor;
f : frequency;
u0 : the zero sequence voltage;
i0 : the zero sequence current;
ia、ib、ic : the secondary three phase protective current。
i1: the positive sequence current.
i2: the negative sequence current.
Heat:
Heat accumulator
i0
:
Zero sequence current
;
ia1
、
ib1
、
ic1
:
Protection current value at this side
;
ia2
、
ib2
、
ic2
:
Protection current value at opposite side
;
Ida
、
Idb
、
Idc
:
Differential current
;
Iza
、
Izb
、
Izc
:
Braking current
;
u2
:
Negative sequence voltage
;
i1/i2
:
Positive / negative sequence current
;
6.4 Device menu function description
01. Protection on & off
02. Protection setting
03. Event record
04. Input & output
05. Sampling value
06.Measure & monitor
07.Electric energy monitor
08. Real time clock
09. Factory settings
10. Equipment information
Protection function on / off selection
Corresponding setting value of protection function
Storage and recording of protection / signal/self inspection events
Verification of input and output
Secondary sampling data display
Display the values of primary & secondary voltage, current,etc
Storage of electric energy
Device time setting and event time
The device parameters are restored to the initial state
Model, version number and other information of device