3
Characteristics
Common conditions
3.1 Protective elements
Items
Undervoltage
Operation
element
value
Overvoltage
element
Undervoltage
element
Reset value
Overvoltage
element
Undervoltage
element
Operation
time
Overvoltage
element
Undervoltage
element
Reset time
Overvoltage
element
3.2 Measurement elements
Items
Real time and max. records
Fault record
(1) Rated frequency: ±1%
(2) Ambient temperature: 20°C±10°C
(3) Aux. supply voltage: Rated voltage±2%
(Common conditions)
(Common conditions)
Rated voltage
0
Setting×120%
Setting×70%
Setting×120%
VT primary setting /
VT secondary setting ×165
The conditions shown on the left
should be applied unless otherwise
specified.
Conditions
Setting×70%
Rated voltage
0
Condition
8
Guaranteed performance
Setting value ±5%
Operation value × 105% or
less
Operation value × 95% or
more
- For setting of INST
40ms or less
- For setting of 0.4s or less
Setting value ± 25ms
- For setting of 0.5s or more
Setting value ± 5%
- For setting of INST
50ms or less
- For setting of 0.4s or less
Setting value ± 25ms
- For setting of 0.5s or more
Setting value ± 5%
60ms or less
Guaranteed performance
±1%
±1%
PCKN-OIL738