Features And Instalation Instructions; Earth Leakage Adjust; Dimensions; Toroidal Ct Weg (30/5 A Ratio) - WEG ABW Serie Manual De Instrucciones

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5 FEATURES AND INSTALATION INSTRUCTIONS

5.1 EARTH LEAKAGE ADJUST:

Leakage current can be adjusted between 0.5 A until 30 A, according to table below, ground fault protection
must to be disable:
Current setting
I n
Time delay
t
Accuracy

5.2 DIMENSIONS:

5.2.1 Toroidal CT WEG (30/5 A ratio)

2 models available:
Model A
ZCT-120 120
ZCR-200 200

5.3 EXTERNAL CT INSTALATION

Toroidal CT must be connected on buses/conductors of breaker supply. Two secundary signal conductores of
external CT must be connected on E1 and E2 protection unit terminals, a conductor in each terminal. Toroid has
5 A secundary signal, consider conductor to link CT signal for this current intensity.
42 | ABW - Air Circuit Breaker
Earth leakage (optional)
0.5 1
Alarm time 140 230
Trip time 140 230
Table 5.1:
Figure 5.1: Toroidal CT WEG (30/5 A ratio).
B C
45 225
53 310
Figure 5.2: External CT instalation.
2 3 5
350 800 950
350 800
D E
180 210
260 286
ZCT or
CT External
10 20 30
F G
20 55
20 70
Off
H
35
35