Description
0.1 Class 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 |