Camille Bauer SIRAX CT600 Operating Manual - Page 9

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6. Technical specifications

Input
Primary current input
Dynamic short circuit current I
Thermal short circuit current I
Nominal frequency
Output
Secondary current
Class of accuracy
Rated burden
Instrument security factor FS
Environmental conditions
Ambient temperature
Storage temperature
Safety
Overvoltage category
Degree of pollution
Test voltage
Rated insulation level
Insulation class
Body protection IP
Mechanical properties
Housing material
Flammability class
Dimensions (height / width / depth)
Connections
Connection
Maximum conductor cross section
Standards
Standards accepted
Calculation example
Main transformer ratio:
Burden - 1 Ammeter
Erforderliche aktive Leistung des Stromwandlers:
Ammeter
Measurement conductor loss
Consumption in summation CT
Total VA
Der einzelne Stromwandler muss seinen VA-Anteil aus diesen 7.0 VA ziehen.
1. Current transformer 500 / 5A
2. Current transformer 400 / 5A
3. Current transformer 300 / 5A
* The VA values of the current transformer are to be rounded up to the corresponding values in our chart.
PM 1002308 000 00
dyn
th
500 / 5A
400 / 5A
300 / 5A
Total current =
1200 / 5A
1.5 VA
1.5 VA
4.0 VA
7.0 VA
(500 / 1200) x 7 = 2.92 VA + additional lesses ≈ 3.75 VA*
(400 / 1200) x 7 = 2.33 VA + additional lesses ≈ 2.5 VA*
(300 / 1200) x 7 = 1.75 VA + additional lesses ≈ 2.5 VA*
Summation current transformer SIRAX CT6xx line
SIRAX CT600
2...4 x 5A
0.5
1
5; 10; 15; 20; 25 VA
3 kV; 50 Hz; 1 min
UL94 V-0, self-extinguishing, non-dripping, halogen-free
112.5 x 75 x 70 mm
M4 screws with self lifting clamp strap
∅ 2,5 mm solid; ∅ 1,5 mm flexibel
IEC 61869-1; IEC 61869-2; IEC 60044-1
SIRAX CT610
5...8 x 5A
2.5 x I
th
60 x I
pr
50 ... 60 Hz
5 A
0.5
FS5; FS10
-25 ... +40 °C
-50 ... +80 °C
III
2
0.72 kV
E (120 °C)
IP20
Polycarbonate
112.5 x 150 x 70 mm
1
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