Basic Info
| Phase | Single |
| Operation Condition | Outdoor |
| Usage | Protection, Measurement |
| Winding Form | Multilayer Honeycomb Type |
| Insulating Medium | Insulating Gas |
| Installation | Active Type |
| Magnetic Circuit Structure | Combined Type |
| Voltage Transformation Principle | Photoelectric Type |
| Primary Current | 100A – 5000A |
| Secondary Current | 5A.1A |
| Size Specification Size | K-30×20 |
| Especificación | Standard |
| Transport Package | Standard |
| Trademark | Tengtai |
| Origin | China |
Product Description
Rectangular through-hole residual current transformers are mainly used in cable loop environments. They have simple structures, small sizes, flexible applications, and a variety of through-hole diameters corresponding to the cable specifications used in the main loop.
The through-hole diameters of rectangular through-hole residual current transformers range from 100m to 300mm, and the main loop currents include 63A to 2000A. This series of products can meet the technical requirements of different accuracies such as 02, 0.5, and 1; at the same time, they can also meet the strict requirements of the new national standard for balance. The unbalanced current output value can also be better than 30mA, 10mA, 5mA, or even 3mA, which greatly reduces the false alarm caused by the magnetic field interference of the main loop current, and provides full guarantee for the reliability of the equipment. The manufacturing process is sophisticated and advanced. To ensure technical requirements such as accuracy and reliability, the rectangular through-hole residual current transformer meets the requirements of GB-14287.2-2005 and GB14287.2-2014.
1. Core-through structure, flame-retardant epoxy resin, good stability
2. High magnetic permeability nickel steel or nanocrystals, good linearity and high sensitivity
3. Excellent balance characteristics and strong anti-electromagnetic field interference ability
Performance Indicators
| Electrical parameters | Mechanical parameters | ||
| Operating frequency | 50-400Hz | shell | ABS,Flame retardant grade94-VO |
| Rated input | 10mA-5A | skeleton | PBT |
| Measuring range | 10%ln-130%ln | Iron Core | Nickel steel or nano steel |
| Rated output | 0-1v(A)0-0.25mA | Internal structure | Environmentally friendly epoxy resin casting |
| Ratio Difference | ≤±0.1% | construction | Screw fixing |
| Phase Difference | S±10 | Temperatura de funcionamiento | -12ºC~+45ºC |
| Dielectric strength | 2.5KV/1mA/min | Ambient temperature | s85% |
| Insulation resistance | DC500V/1000MQ/min | Wiring method | Terminal type/shielded stranded wire 1.5m |
Appearance and installation dimensions
| Model Specifications | Rated input(A) | Rated output (mAVv) | Accuracy Grade | A | B | Shape K | Size(m F | m) C | D | G |
| F-1025 F-1435 F-1835 F-2245 | 0-1A | 0-1V(0.5mA) | 0.1 3 1.0 | 157 203 246 280.5 | 53.5 715 71.5 83.5 | 100 140 180 220 | 25 35 35 45 | 19 24 24 24 | 141.5 188 230 266 | M6 M6 M6 M6 |
| F-2645 | 326 | 85 | 260 | 45 | 24 | 310 | M6 | |||
| F-3045 | 366.5 | 85 | 300 | 45 | 24 | 352 | M6 | |||
| F-4545 | 516.5 | 85 | 450 | 45 | 24 | 502 | M6 |
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