ABB ret650, Руководство по эксплуатации продукта

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Voltage protection
Table 38. Two step undervoltage protection UV2PTUV
Function Range or value Accuracy
Operate voltage, low and high step (1–100)% of UBase ± 0.5% of U
r
Reset ratio <102% -
Inverse time characteristics for low and high step, see table 73 - See table 73
Definite time delay, step 1 (0.00 - 6000.00) s ± 0.5% ± 25 ms
Definite time delays, step 2 (0.000-60.000) s ± 0.5% ±25 ms
Minimum operate time, inverse characteristics (0.000–60.000) s ± 0.5% ± 25 ms
Operate time, start function 30 ms typically at 1.2 to 0.5U
set
-
Reset time, start function 40 ms typically at 0.5 to 1.2 xU
set
-
Critical impulse time 10 ms typically at 1.2 to 0.8 x U
set
-
Impulse margin time 15 ms typically -
Table 39. Two step overvoltage protection OV2PTOV
Function Range or value Accuracy
Operate voltage, step 1 and 2 (1-200)% of UBase ± 0.5% of U
r
at U < U
r
± 0.5% of U at U > U
r
Reset ratio >98% -
Inverse time characteristics for steps 1 and 2, see table 72 - See table 72
Definite time delay, step 1 (0.00 - 6000.00) s ± 0.5% ± 25 ms
Definite time delays, step 2 (0.000-60.000) s ± 0.5% ± 25 ms
Minimum operate time, Inverse characteristics (0.000-60.000) s ± 0.5% ± 25 ms
Operate time, start function 30 ms typically at 0 to 2 x U
set
-
Reset time, start function 40 ms typically at 2 to 0 x U
set
-
Critical impulse time 10 ms typically at 0 to 2 x U
set
-
Impulse margin time 15 ms typically -
Transformer protection RET650 1MRK 504 137-BEN B
Product version: 1.3
46 ABB