Thermal Withstand; Accuracy - Siemens 7sg15 microtapp Operation Manual

6. Thermal withstand

6.1 CT Inputs
6.2 VT Inputs

7. Accuracy

7.1 Accuracy Reference Conditions
7.2 Accuracy
7.3 Accuracy Influencing Quantities
7.3.1 Temperature
Ambient range
Variation over range
7.3.2 Frequency
Setting variation
©2010 Siemens Protection Devices Limited
3.0 x I
n
3.5 x I
n
100A
2500A
250Vrms
Settings
Auxiliary Supply
Frequency
Ambient temperature
Bandwidth accuracy
Load measurement
Circulating current
measurement
Repeatability
Delays
Range
7SG15 MicroTAPP Performance Specification
continuous
10 min
1 sec
1 cycle
continuous
All settings
Nominal
50/60Hz
20°C
±1% of absolute level
±5% of total substation load
(assuming balance load)
±5% of non-load current
±1%
±1% or 0.5 sec
-10°C to +55°C
47Hz to 62Hz
≤ 5%
≤ 5%
Chapter 2 Page 6 of 8