ABB Relion 650 series RET650 Product Manual page 62

Transformer protection RET650
Product version: 1.1
Table 41. Voltage control TR8ATCC, TCMYLTC, continued
Function
Alarm level of reactive power in
forward and reverse direction
Time delay for alarms from power
supervision
Tap position for lowest and highest
voltage
Type of code conversion
Time after position change before
the value is accepted
Tap changer constant time-out
Raise/lower command output pulse
duration
Logic
Table 42. Tripping logic SMPPTRC
Function
Trip action
Timers
62
Range or value
(-9999.99–9999.99) MVAr
(1–6000) s
(1–63)
Binary, BCD, Gray,
ContactPerTap
(1–60) s
(1–120) s
(0.5–10.0) s
Range or value
3-ph
(0.000-60.000) s
1MRK 504 127-BEN -
Issued: February 2011
Accuracy
± 1.0% of S
± 0.5% ± 110 ms
-
-
± 0.5% ± 25 ms
± 0.5% ± 25 ms
± 0.5% ± 25 ms
Accuracy
-
± 0.5% ± 10 ms
r
ABB