ABB Relion REQ650, Product Manual

Page: 67 / 91

Table 38. Two step residual overvoltage protection ROV2PTOV (59N)
Function Range or value Accuracy
Operate voltage, step 1 (1-200)% of VBase ± 0.5% of V
n
at V < V
n
± 0.5% of V at V > V
n
Operate voltage, step 2 (1–100)% of VBase ± 0.5% of V
n
at V < V
n
± 0.5% of V at V > V
n
Reset ratio >95% -
Inverse time characteristics for
low and high step, see table
74
- See table 74
Definite time setting, step 1 (0.00–6000.00) s ± 0.5% ± 25 ms
Definite time setting, step 2 (0.000–60.000) s ± 0.5% ± 25 ms
Minimum operate time for step 1
inverse characteristic (0.000-60.000) s ± 0.5% ± 25 ms
Operate time, pickup function 30 ms typically at 0 to 2 x V
set
-
Reset time, pickup function 40 ms typically at 2 to 0 x V
set
-
Critical impulse time 10 ms typically at 0 to 2 x V
set
-
Impulse margin time 15 ms typically -
Table 39. Loss of voltage check LOVPTUV (27)
Function Range or value Accuracy
Operate voltage (0–100)% of VBase ± 0.5% of V
n
Reset ratio <105% -
Pulse timer (0.050–60.000) s ± 0.5% ± 25 ms
Timers (0.000–60.000) s ± 0.5% ± 25 ms
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
ABB 67