Poznámky redaktora
4xUn
step 0.1s t8< step 0...1xPn
step 0...
50/158
..5s t12< step 0.01 xUn
0. 2,5
Apparent energy 0,02 .95xUn
step 0.. 0,2
Instantaneous active power the
single phase and total system
0,02 .. 0,3 2,5
Instantaneous reactive power the
single phase and total system
0,02 . 2..5s t11< step 0..... .5
Model L2234 Apparatus Scale
L 2778
Doc-No- 2
Page No. 1,1x690 Vconc conc 1
Peak factor 0,1 0,3 1,5
Total power factor 0,1 0,5 2,5
Mains frequency .3xPn< P11<-0. 0,3 .1s data
± 10% s
O V
(t= k)
H 1..05 Un
0. 1,1x690 Vconc conc .. 1,1x690 Vconc conc 1
Residual voltage
(for systems with neutral only)
10 ..5s t13< step 0...02 Pn
0.1s The data
± 10% s
RV
(t= k)
H 0..1xUn U10< 0.2xUn
step 0.1s 10% The data
± 10% s
UF 0.. 0,3 ..01 fn
0... 0,3 2,5
Active energy 0,02 .....05xUn U9< 1.. 0,3 1,5
External ground fault current
(external source round return)
0,05 .01 fn
0.5xUn 0.1s t9< step 0. 0,3 2,5
Reactive energy 0,02 .12. 0,3 1,5
Internal ground fault current
(internal source round return)
0,05 ..1s The data
± 10% s
13.2 Table easurem ents
Type measurement Standard operation range
Range values measured the relay Range Tolerance %
Phase and neutral currents 0,05 . 1,1x690 Vconc conc .13.9..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. 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 ..5s t10< step 0.2.9 f12< 0.1s The data
± 10% s
O 1.2.99 fn
step 0...12..01xUn
0. 0,3 2,5
Instantaneous apparent power on
the single phase and total system
0,02 .5s The data
± 10% s
(tR
P
)
H 0.9.
