CYG PRS-7367 - Sensitive Earth Fault; Gap Overcurrent and Zero Sequence Overvoltage; Restricted Earth Fault Protection 64 REF; Differential Protection

Technical Specifications
30 PRS-7367
±1.0% of the set value or ±0.005 × In
Ratio I2Hp/Ip measurement:
±5.0% of the set value
Operating time accuracy
±1.0% of the set value or ±40 ms
Reset time
≤45ms
Reset ratio
(Ratio setting-0.005)/ Ratio setting(±3%)
2.8.12 Sensitive Earth Fault
Function
Accuracy
Operate accuracy
Current measurement:
±1.0% of the set value or ±0.005 × In
Voltage measurement
±1.0% of the set value or ±0.005 × Un
Power measurement: ±3.0% of the set value or
±0.002 × Sn
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
Reset time
≤45ms
Reset ratio
Typically 96%(±3%), Or (
et 0.005
et
S Value In
S Value

)(±3%)
2.8.13 Gap overcurrent and zero sequence overvoltage
Function
Accuracy
Operate current
±1.0% of the set value or ±0.005 × In
Operate voltage
±1.0% of the set value or ±0.005 × Un
Reset time
≤60ms
Current Reset ratio
Typically 96%(±3%), Or (
et 0.005
et
S Value In
S Value

)(±3%)
Voltage Reset ratio
Typically 96%(±3%)
Tolerance of operating time
±1.0% of the set value or ±40 ms
2.8.14 Restricted Earth Fault Protection 64REF
Function
Accuracy
Operate current
±1.0% of the set value or ±0.005 × In
Reset ratio
Typically 96%(±3%), Or (
et 0.005
et
S Value In
S Value

)(±3%)
Tolerance of operating time
±1.0% of the set value or ±40 ms
2.8.15 Differential Protection
Function
Accuracy
Operate 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%)