Poznámky redaktora
Note I1=1lnsetting intended the maximum adjustm ent the protection against overloads.
In the SACE PR122/P release, this protection can set for the following values: InN= 50% 100% 150% 200% In. 13..
In some installations, where particularly high harmonics occur, the current circulating the neutral may higher than that the phases.g..
1 tra ific tio s
Neutral (InN) adjustment must meet the following formula: I1x InN<Iu. Moreover, you
can select the values the primary voltage (100, 115, 120, .5.3).6.
13.
Settings 2/8
Enter J
Password
Enter J
Mains Frequency 1/2)
Circuit Breaker
0***
Enter password
1 Hz
| Main Frequency Hz
Modules ▼
50 Hz
-----------------------------F" ---------------------►
13.3) and the PR021/K unit (see par.3 ains frequency settings
In the mains frequency menu, you can choose between the frequency values: 50, 60Hz.
In any case, the relay records any setting error between I1and the Neutral setting and signals this means the warning (see par.
Model 2234 Apparatus Scale
L 2778
Doc No- 2
Page No.: With E1B800 with 400A Rating Plug, 800A and 11n, InN adjustment may be: 50-100-200%.1), and adjusts the parameter
independently the accepted limits.
In case three-pole with external neutral, the relay performs checks and user must correct the settings.
A
Failure ith ttin lim its "I1" and "InN" can cause circ it-b dam age ith t
ris even r.
In case four-pole CB, this setting checked the relay which signals any failure through Led (see par.2 Neutral adjustm ent
The neutral protection normally set current value 50% the adjustment made the phases.Parameter Function Values
System Date
Time
Language English/Italiano/Français/Deutsch/Espanol
New password
D isplay Contrast
The summary table relates the surfing the pages dedicated the PR120/K module (see par.
With E1B800 with 800A Rating Plug, 800A and 11n, InN adjustment may be: 50-100%.6..
E.
1 PR120/V EASURING le
Modules 1/4
1 MEASURING module
COM module
SIGNALLING module ▼
Module configuration
MEASURING module 1/5
Voltage Transf
Rated voltage
Positive Power flow
Absent
In the measuring module you must enter password and can then opt for the absence presence the voltage transformer. 15. 230V).4.4 s
W hen acce ttings enu, set ila relatin odules. 1000V) and secondary voltage (100, 110, .
69/158
.1).5. For three-pole CBs only.4.4.5. 13.. Actual maximum allowable adjustm ent must take into account any
tem perature derating, term inals used and altitude, (rating plug)< 50% circuit breaker size. 16. After entering password you can choose whether the neutral connection Absent
or Present.
The power flow can LOW HIGH HIGH LOW.
For four-pole CBs only.
13
