TC500K3US-O Installation Instructions
90
Parameter description
Reference value
Trip limit and trip time accuracy
2V/20ms 0.1Hz/20ms
Limits of accuracy of frequency measurement (Hz)
0.1
Limits of accuracy of Voltage measurement (V)
2
Total current waveform distortion factor(%)
<3 (rated power)
Control of power factor
0.9 (leading) ~ 0.9 (lagging)
Parameter description
Reference value
Adjustable LIMITS - Utility
interconnection voltage trip limits
and trip times:
Max(V)
Min(V)
Clearing times
(s)
L-L
L-N
L-L
L-N
Max
Min
Overvoltage/Fast
250
N/A
236
N/A
1
0.16
Overvoltage/Slow
228
N/A
216
N/A
10
1
Undervoltage/Slow
180
N/A
140
N/A
20
2
Undervoltage/Fast
120
N/A
80
N/A
2
0.16
Parameter description
Reference value
Adjustable LIMITS- Utility
interconnection frequency trip limits
and trip times:
Magnitude range (V)
Time range (s)
Overfrequency-Lower Range
60.5
0.16
Underfrequency-Upper Range
59.8
0.16 to 300
Underfrequency-Lower Range
> 57.0
0.16 to 300
Underfrequency – Extended Low Range
< 57.0
0.16 Sec
