CYG PRS-7367 - Residual Overcurrent Protection; Sequence Overcurrent Protection; Phase Discontinuity Protection; Over;Under Frequency Protection

Technical Specifications
28 PRS-7367
2.8.2 Residual Overcurrent Protection
Function
Accuracy
Operate current
±1.0% of the set value or ±0.005 × In
Blocking voltage
±1.0% of the set value or ±0.005 × Un
Reset time
≤45ms
Reset ratio
Typically 96%(±3%), Or (
et 0.005
et
S Value In
S Value

)(±3%)
Tolerance of operating time at instantaneous time
mode without directional and voltage control element
≤25 ms at I=2xstart value
Tolerance of operating time at definite time mode
±1.0% of the set value or ±40 ms
Tolerance of operating time at inverse time mode
±5.0% of the theoretical value or ±40 ms,
Start value multiples in range of 1.2...20 when I>In,
Start value multiples in range of 2...20 when I≤In.
Transient overreach accuracy（this Accuracy
standards is only for Indonesia）
<10%
Transient accuracy overshoot
≤40ms
2.8.3 Sequence Overcurrent Protection
Function
Accuracy
Tolerance of operating current
±1.0% of the set value or ±0.005 × In
Reset time
≤45ms
Reset ratio
Typically 96%(±3%), Or (
et 0.005
et
S Value In
S Value

)(±3%)
Tolerance of operating time at definite time mode
±1.0% of the set value or ±40 ms
Tolerance of operating time at inverse time mode
±5.0% of the theoretical value or ±40 ms,
Start value multiples in range of 1.2...20 when I>In,
Start value multiples in range of 2...20 when I≤In.
Transient overreach accuracy（this Accuracy
standards is only for Indonesia）
<10%
Transient accuracy overshoot
≤40ms
2.8.4 Phase Discontinuity Protection
Function
Accuracy
Tolerance of Ratio setting
±2% of the set value
Reset time
≤45ms
Current Reset ratio
Typically 96%(±3%), Or (
et 0.005
et
S Value In
S Value

)(±3%)
Tolerance of operating time at definite time mode
±1.0% of the set value or ±40 ms
2.8.5 Over/Under Frequency Protection
Function
Accuracy
Tolerance of operating frequency
± 0.01Hz, 30.00-70.00 at Fn=50; 40.00-80.00 at
Fn=60
Tolerance of blocking voltage
±1.0% of the set value or ±0.005 × Un