Siemens 9300 Manual De Usuario
Electrical Specifications
9300 Series User’s Guide
Page 158
Chapter 7 - Hardware Reference
Potential Transformers
C
AUTION
In cases where PTs are required, the secondaries should be fused.
Current Inputs
Current Transformers
1
The CT burden rating must exceed the combined burden of the meter, plus cabling, plus any other
connected devices.
connected devices.
Specification
Description
Use of PTs
Required for all systems with voltage levels greater than those above
Secondary Rating
50 to 347 VAC +25% is required
Specification
Value
Overload
20 Amps continuous, 500 Amps for 1 second, non-recurring
Burden
0.0625 VA @ 10 Amps
Phase Current Wire Type
AWG 14 to 12 wire
Starting Current
2 mA
Specification
Value
Primary Rating
Equal to the current rating of the power feed protection device
Burden Rating
>3 VA
1
Secondary Rating
5 Amp nominal, 10 Amp full-scale