Poznámky redaktora
05xUn U9< 1. .2 Table easurem ents
Type measurement Standard operation range
Range values measured the relay Range Tolerance %
Phase and neutral currents 0,05 ... 0,3 2,5
Active energy 0,02 .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
Internal ground fault current
(internal source round return)
0,05 . 1,1x690 Vconc conc 1
Residual voltage
(for systems with neutral only)
10 .1s 10% The data
± 10% s
UF 0.01fn f13< 1,1fn
step 0.01 fn
0. 2..... 0,2
Instantaneous active power the
single phase and total system
0,02 . 1,1x690 Vconc conc .3xPn< P11<-0..1s data
± 10% s
O V
(t= k)
H 1.2..01 fn
0. 0,3 .. 1,1x690 Vconc conc .01xUn
0.4xUn
step 0..12. 0,3 2,5
Instantaneous reactive power the
single phase and total system
0,02 .05 Un
0...99 fn
step 0.
50/158
.. 0,3 2,5
Reactive energy 0,02 .....95xUn
step 0..02 Pn
0. 0,3 .1s The data
± 10% s
O 1.1xUn U10< 0.9.1s t9< step 0..5s The data
± 10% s
(tR
P
)
H 0...1xPn
step 0...5xUn 0.1s t8< step 0.1s The data
± 10% s
13..5s t12< step 0.1s The data
± 10% s
RV
(t= k)
H 0.5s t11< step 0..5s t13< step 0. 1,1x690 Vconc conc 1
Peak factor 0,1 0,3 1,5
Total power factor 0,1 0,5 2,5
Mains frequency .5s t10< step 0. 2,5
Apparent energy 0,02 .2.5
Model L2234 Apparatus Scale
L 2778
Doc-No- 2
Page No.9 f12< 0.13. 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 ...01 xUn
0..9..... 0,3 2,5
Instantaneous apparent power on
the single phase and total system
0,02 . 0,3 1,5
External ground fault current
(external source round return)
0,05 .12.2xUn
step 0..
