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DC immune current transformer , Application and Features:
1. for electronic energy meters, single-phase and three-phase meters
2.The iron core is made of high quality ferrous amorphous alloy and nanocrystalline alloy material,
and the secondary wire is made of high strength electromagnetic enameled wire, fully epoxy resin seal, with high precision and good linearity.
3.The cases adopts imported flame retardant PBT material with good mechanical and electrical strength.
4.Small size, light weight, easy to install.
Product Description
1. Specification
Characteristics | Values |
Operating frequency | 50 Hz ~ 400 Hz |
Operating temperature | -40℃ ~ 85℃ |
Relative humidity | ≤95% |
Rated primary current Ip | 50A |
Maximum primary operating current Imax | 60A |
Testing current for DC component 100A/Root 2 | ＜3% |
Rated second current | 20mA |
Transformation ratio | 1:2500 |
User supplied burden resistor | 10Ω |
Accurate operating current range | 5%Ip~Imax |
Power frequency withstand voltage | 3Kv/1min |
Insulation resistance | >500MΩ/500Vdc |
Interturn insulation | 50A/1min |
Accuracy class | 0.1class |
Accuracy class | With the percentage(%)of Ip | |||
5 | 20 | 100 | 120 | |
Ratio Error (±%) | 0.4 | 0.2 | 0.1 | 0.1 |
Phase Displacement(±ˊ) | 15 | 8 | 5 | 5 |
2. Structure and Size
Current direction:
Primary current is from K to L, secondary current is from Black line to White line.
3. Dimension
4.Material List:
Material | Spec. model | UL code | Manufacturer | |
1 | Inner core | Nano-crystalline core | / | ZEMING |
2 | Outer core | Amorphous core | / | ZEMING |
3 | Core shell | PBT | E238981 | QINGDAO QINKE ENGINEERING PLASTICS CO |
4 | Winding | 0.13mm, 2500T | E258243 | ELEKTRISOLA HANGZHOU CO LTD |
5 | Shield shell | Steel | / | Runhan |
6 | Epoxy resin | TXH-9201-10 epoxy resin insulating compound | E196959 | TIANJIN XINQIAO INSULATING MATERIAL |
7 | Leading wire | UL1007, 26AWG, Black&White | E315651 | ZHEJIANG CHENGBAO WIRE & CABLE CO |
9 | Connector | Molex 5264-2P | / | Shenzhen Pinshang Electronic |
10 | Tape | Flame retardant, Environmental protection | E165111 | JINGJIANG YAHUA PRESSURE SENSITIVE |
