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ABB RER620 - Page 24

ABB RER620
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24 RER620 ADVANCED RECLOSER PROTECTION & CONTROL


Description Value
Operation accuracy
 
Depending on the frequency of the current measured: f
n

Current:

n
Voltage:

n
Phase angle:


Current:

n

n
)

n
)
Voltage:

n
Phase angle:

Pickup time

Minimum Typical Maximum


I
Fault
   
Reset time 
Reset ratio 
Retardation time 
Trip time accuracy in definite time mode 
Trip time accuracy in inverse time mode 

Suppression of harmonics


n
,

Characteristic Value
Operation accuracy
Depending on the frequency of the current measured: f
n


n
Pickup time

I
Fault

I
Fault

Minimum Typical Maximum






Reset time 
Reset ratio 
Retardation time 
Trip time accuracy in definite time mode 
Trip time accuracy in inverse time mode 

Suppression of harmonics 
n

1)

n
, f
n

based on statistical distribution of 1000 measurements
2)
Includes the delay of the signal output contact
3)

n
, Pickup range multiples in range of 1.5 to 20
1)
Negative sequence voltage before fault 0.0 x U
n
, f
n

distribution of 1000 measurements
2)
Includes the delay of the signal output contact
3)

n
, Pickup value multiples in range of 1.5 to 20

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