CYG PRS-7367 - Over;Under Voltage Protection; Power Protection; 50 BF Protection; Thermal Overload

Technical Specifications
PRS-7367 29
Tolerance of frequency gradient
± 0.1Hz/s at -10.00~10.00 Hz/s
Operate time, definite time function
±1.0% of the set value or ±60 ms
Reset time, definite time function
<190ms
2.8.6 Over/Under Voltage Protection
Function
Accuracy
Tolerance of operating voltage
±1.0% of the set value or ±0.005 × Un
Tolerance of blocking current
±1.0% of the set value or ±0.005 × In
Reset ratio
≤96%(±3%) for Over, ≥104%(±3%) for Under
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, the
maximum Start value is 1.2Un, the Start value
multiples in range of 1.10...2.00.
2.8.7 Power Protection
Function
Accuracy
Operation accuracy
At the frequency f = fn
Power: ≤ 2.5% Setting or 0.5W
Reset ratio
≤96%(±3%)
Tolerance of operating time
±1.0% of the set value or ±40 ms
2.8.8 50BF Protection
Function
Accuracy
Operate current
±1.0% of the set value or ±0.005 × In
Operate residual current
±1.0% of the set value or ±0.005 × In
Current Reset ratio
Typically 96%(±3%), Or (
et 0.005
et
S Value In
S Value

)(±3%)
Drop-off time
≤ 12.5ms
Tolerance of operating time
±1.0% of the set value or ±40 ms
2.8.9 Thermal overload
Function
Accuracy
Operate current
±1.0% of the set value or ±0.005 × In at 0.04…3In
22
22
1
()
ln
()
tB
tB
I k I
t
I k I







IEC 60255-8, ±5% + 200ms
2.8.10 Auto-Reclose
Function
Accuracy
Tolerance of operating time
±1.0% of the set value or ±40 ms
2.8.11 OCR_INR
Function
Accuracy
Operate accuracy
Current measurement: