1:2000 0.1Class Current Transformer (NRC07)
Used for a current sensing device for utility energy meter.
Moisture-proof and vibration-resistant.
Encapsulation by epoxy resin, with high insulation ability.
Casing by flame retardant PBT.
DC-tolerance version available (IEC62053-21 standard).
Characteristics |
Values |
Operating frequency |
50/60Hz |
Operating temperature |
-25 º C ~ 75 º C |
Relative humidity |
80% ~ 90% |
Rated primary current I p |
10 or 20A |
Maximum primary operating current I max |
100A |
Rated secondary current I s |
When I p =10A, I s =4mA
When I p =20A, I s =8mA |
|
Turn ratio N |
1: 2500 |
Testing current for DC component I test |
|
Burden resistor R b |
5 Ω , 10 Ω , 20 Ω |
Accurate operating current range |
5% I p ~ I max |
Accuracy class |
0.2% |
Insulation intensity under power frequency |
Without damage by 4000V for 1 min. |
Insulation resistance |
> 50M Ω |