CYG PRS-7367 - Technical Specifications; Electrical Specifications

Technical Specifications
PRS-7367 21
2 Technical Specifications
2.1 Electrical Specifications
2.1.1 Current Transformer Ratings
Reference
IEC 60255-1, IEC 60255-27
Rated frequency (fn)
50Hz, 60Hz
Nominal range
fn ± 5Hz
Rated current (In)
1/5A
Thermal withstand capability
continuously
3×In
for 10s
20×In
for 1s
100×In
Burden
< 0.05VA/phase @1A, < 0.2VA/phase @5A,
2.1.2 Voltage Transformer Ratings
Reference
IEC 60255-1, IEC 60255-27
Rated frequency (fn)
50Hz, 60Hz
Nominal range
fn ± 5Hz
Rated voltage (Un)
100V ~ 120V (phase-to-phase voltage)
Thermal withstand capability
continuously
240V
10s
360V
1s
400V
Burden at rated voltage
< 0.03VA/phase @57.7V
2.1.3 Auxiliary Power Supply
Reference
IEC 60255-1, IEC 60255-26
Rated voltage
24VDC~250VDC, 48V~250VAC
Variation
80% ~ 120%
Frequency
50/60Hz, ± 5Hz
Maximum interruption time in the
auxiliary DC voltage without
resetting the IED
0%Un,100ms；
40%Un,200ms；
70%Un,500ms
At the Un=DC220V
Gradual shut down / Start up
Class C (60s shut down ramp, 5 min power off, 60s start up ramp)
Ripple in the DC auxiliary voltage
Class A (15% of rated @200Hz, 220VDC)
Maximum load of auxiliary voltage
supple
≤22W (normal state),
≤25W (maximum state)
2.1.4 Binary Input
Reference
IEC 60255-1, Clause:6.10.5
Binary input number
Up to 36
Rated voltage
24VDC~250VDC, 48V~250VAC