Condition monitoring and supervision functions
Table 190. Circuit-breaker condition monitoring (SSCBR)
Characteristic Value
Current measuring accuracy ±1.5% or ±0.002 × I
n
(at currents in the range of 0.1…10 × I
n
)
±5.0%
(at currents in the range of 10…40 × I
n
)
Operate time accuracy ±1.0% of the set value or ±20 ms
Travelling time measurement +10 ms / -0 ms
Table 191. Hot-spot and insulation ageing rate monitoring for transformers (HSARSPTR)
Characteristic
Value
Warning/alarm time accuracy ±1.0% of the set value or ±0.50 s
Table 192. Hot-spot and insulation ageing rate monitoring for transformers (HSARSPTR) main settings
Parameter
Function Value (Range) Step
Cooling mode HSARSPTR 1 = ONAN
2 = ONAF
3 = OFAF
4 = ODAF
-
Alarm level HSARSPTR 50.0...350.0°C 0.1
Warning level HSARSPTR 50.0...350.0°C 0.1
Alarm delay time HSARSPTR 0...3600000 ms 10
Warning delay time HSARSPTR 0...3600000 ms 10
Average ambient Tmp HSARSPTR -20.00...70.00°C 0.01
Alarm level Age Rte HSARSPTR 0.00...100.00 1
Table 193. Current circuit supervision (CCSPVC)
Characteristic
Value
Operate time
1)
<30 ms
1) Including the delay of the output contact
Table 194. Current circuit supervision (CCSPVC) main settings
Parameter
Function Value (Range) Step
Start value CCSPVC 0.05...0.20 × I
n
0.01
Max operate current CCSPVC 1.00...5.00 × I
n
0.01
Table 195. Current circuit supervision for transformers (CTSRCTF)
Characteristic
Value
Operate time
1)
<30 ms
1) Including the delay of the output contact
1MRS759144 A
To Next Page
Loading...
Need help?
General
