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05 Un
0....1s 10% The data
± 10% s
UF 0...1s The data
± 10% s
RV
(t= k)
H 0..2xUn
step 0. 0,3 2,5
Instantaneous apparent power on
the single phase and total system
0,02 .99 fn
step 0..2.2.01 xUn
0.. 0,3 .. 1,1x690 Vconc conc .9... 2..5s t11< step 0... 0,3 1,5
External ground fault current
(external source round return)
0,05 .....
50/158
. 0,3 .4xUn
step 0.95xUn
step 0......12. 0,3 1,5
Internal ground fault current
(internal source round return)
0,05 . 1,1x690 Vconc conc .01fn f13< 1,1fn
step 0.1 Summary the additional protection functions for the PR122/P with the optional PR120/V module
Protection
Disabling
Disabling
ofTRIPonly
Zone
selectivity
Start-upthreshold
or
£
e
E al
£ er
h
1-
Threshold Range Time Range olerance
threshold (2)
Tim e
Tolerance (2)
UV
(t k)
0 0.1s t9< step 0..5s t12< step 0..1s The data
± 10% s
13.1s The data
± 10% s
O 1.5s t10< step 0.9 f12< 0.3xPn< P11<-0. .02 Pn
0.5
Model L2234 Apparatus Scale
L 2778
Doc-No- 2
Page No.. 0,3 1,5
Phase-to-phase and phase voltages
(measured the module's input
and thus independent the precision
relating the use any VT)
10 . 1,1x690 Vconc conc 1
Residual voltage
(for systems with neutral only)
10 ..01 fn
0..2 Table easurem ents
Type measurement Standard operation range
Range values measured the relay Range Tolerance %
Phase and neutral currents 0,05 .01xUn
0.. 0,3 2,5
Active energy 0,02 .. 0,2
Instantaneous active power the
single phase and total system
0,02 . 1,1x690 Vconc conc 1
Peak factor 0,1 0,3 1,5
Total power factor 0,1 0,5 2,5
Mains frequency ..1s t8< step 0.05xUn U9< 1.13.12.1s data
± 10% s
O V
(t= k)
H 1.1xPn
step 0.1xUn U10< 0.9.5s t13< step 0. 2,5
Apparent energy 0,02 .5xUn 0. 0,3 2,5
Instantaneous reactive power the
single phase and total system
0,02 .01 fn
0.. 0,3 2,5
Reactive energy 0,02 .5s The data
± 10% s
(tR
P
)
H 0..
