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Current transformers
Description
Choice of transformers
Technical guide
Rated Burden for current circuit
Maximun demand ammeter 2,8 VA
Moving-iron ammeter 1,1 VA
Moving-coil ammeter with retifier < 1 VA
Wattmeter - Varmeter 0,5 VA
Power factor meter 0,5 VA
KWh meters 0,5 VA
Digital ammeter < 1 VA
VA per meter of twin cable at 20° C*
Section Cuivre
mm2 |
Secondaire 5A
VA |
Secondaire 1A
VA |
| 1 |
1,00 |
0,04 |
| 1,5 |
0,68 |
0,028 |
| 2,5 |
0,41 |
0,016 |
| 4 |
0,26 |
0,01 |
| 6 |
0,17 |
0,007 |
| 10 |
0,098 |
0,007 |
| 16 |
0,062 |
0,0025 |
* For each 10°C of temperature variation, VA absorbed by cable increase by 4%.
Description
Choice of transformers
Technical guide
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