ABB Relion REG670, Руководство по эксплуатации продукта

Страница: 83 / 146

SEMOD166919-2 v7
Table 72. Voltage differential protection VDCPTOV
Function Range or value Accuracy
Voltage difference for alarm and trip (2.0–100.0) % of
UBase
±0.5% of U
r
Under voltage level (1.0–100.0) % of
UBase
±0.5% of U
r
Independent time delay for voltage
differential alarm at 0.8 x UDAlarm to 1.2 x
UDAlarm
(0.000–60.000)s ±0.2% or ±40 ms whichever is greater
Independent time delay for voltage
differential trip at 0.8 x UDTrip to 1.2 x
UDTrip
(0.000–60.000)s ±0.2% or ±40 ms whichever is greater
Independent time delay for voltage
differential reset at 1.2 x UDTrip to 0.8 x
UDTrip
(0.000–60.000)s ±0.2% or ±40 ms whichever is greater
SEMOD175168-2 v7
Table 73. 100% Stator E/F 3rd harmonic STEFPHIZ
Function Range or value Accuracy
Fundamental frequency level UN
(95% Stator EF)
(1.0–50.0)% of
UBase
±0.25% of U
r
Third harmonic differential level (0.5–10.0)% of UBase ±0.25% of U
r
Third harmonic differential block
level
(0.1–10.0)% of
UBase
±0.25% of U
r
Independent time delay to
operate for fundamental UN >
protection at 0 to 1.2 x UNFund>
(0.020–60.000) s ±0.2% or ±40 ms whichever is greater
Independent time delay to
operate for 3rd harm-based
protection at 0 to 5 x UN3rdH<
(0.020–60.000) s ±0.2% or ±40 ms whichever is greater
Filter characteristic:
Fundamental
Third harmonic
Reject third harmonic by 1–40
Reject fundamental harmonic by
1–40
-
1MRK 502 074-BEN A
Generator protection REG670 2.2 and Injection equipment REX060,
REX061, REX062
Product version: 2.2.1
ABB 83