ABB RER620 Product Guide

7
layed. In such applications, RER620 includes a se-
quence coordination feature. Recloser feature in
RER620 includes Switch Onto the Fault (SOTF)
which prevents reclosing sequence when recloser/
breaker is manually closed on forgotten grounding
after a maintenance work along the power line.
During the stormy weather, there might be many
autoreclose shots within a few minutes. These
types of faults can easily damage recloser/breaker
if the reclose function is not blocked based on fre-
quent operation counters.
Figure 1 shows the protection functions available
for the standard configuration.
RER620
1
Io selectable by setting, Io calculated as default
52
Υor Δ
Va, Vb, Vc
3
51P3I> 50P-13I> 50P-23I>>
50P-33I>>>
68
46PD
3I
2f
>I
2/
I
1
I
2
>50BF3I>BF 46
I
2
>
67P3I>->
51NI0>50N-1I0>50N-2I0>>50N-3I0>>>
32PP>-> 32NQ>->
50SEFI0> HIZPHIZ1 67N
1
I0>->
Ia, Ib, Ic
4
27P3U< 59P3U> 81f</f> 81SUFLS/R
2
2
Under-frequcny and df /dt based load shedding function
59PSV
1
>
59N
V
0
>
60FUSEF
Υ
27P3U< 59P3U>
47NS
V
2
>
47NS
V
2
>
V
1
>
59PS
59NV
0
>
25SYNC
079
1
LCMLCM
3
In the case of ABB GridShield recloser , these are embedded Capacitor Voltage
Divider (CVD) with 10,000:1 ratio
4
In the case of ABB GridShield recloser , these are embedded Current Transformer
(CT) with 600:1 ratio
—
Figure 1. Protection
function overview

ABB RER620 Specifications

General

Brand	ABB
Model	RER620
Category	Controller
Language	English