Bushing-type current transformers
Description
In the case of bushing-type current transformers, the customer’s primary wire is pushed through the current transformer opening in the housing. The push-through opening depends on the size of the primary current. Wound primary type current transformers have a primary winding and a secondary winding. Both windings are applied on the closed toroidal core and are isolated from each other by insulation. This principle applies mainly where primary currents are small.
Advantages
- Litz wires or terminals according to UL 94 V0
- Bushing-type current transformers
- Wound primary type current transformer, version for small currents
- Toroidal cores made of high-quality silicon-iron
- Measurement in the low-frequency range 16 2/3 to -400Hz
- High core output power and high-quality insulation (UL)
- circuits primaires et secondaires séparés électriquement
- des formes faciles à monter
- Wide range of housings with various push-through openings
UNIQUE SELLING POINT
- des formes faciles à monter
- Variable connections, e.g. clamps, plugs, flat-cable plugs, flexible stranded wire or print mounting
- Wide range of housings with various push-through openings
- Push-through openings
- Very long useful lifetime
Typical applications
Industry, Renewable energy sources, Railway engineering, Energy, automation and building technology
| Type | 50 | 100 | 300 | 500 | 1000 | 2000 | 3000 | |
| Primary rated current [A] | IPN | 50 | 100 | 300 | 500 | 1000 | 2000 | 3000 |
| Max. Primary rated current [A] | ImaxPN | 60 | 120 | 360 | 600 | 1200 | 2400 | 3600 |
| Secondary current [mA] | IaN | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 |
| Power [VA] | Psek | 0,5 | 1,0 | 2,5 | 10 | 15 | 25 | 25 |
| Ratio | KN | 50 | 100 | 300 | 500 | 1000 | 2000 | 3000 |
| Load resistance [Ω] | RB | 0,5 | 1,0 | 2,5 | 10 | 15 | 25 | 25 |
| Load voltage [V] | URB | 0,5 | 1,0 | 2,5 | 10 | 15 | 25 | 25 |
| Measuring accuracy 50 Hz [%] | FU | 1,0 | 1,0 | 1,0 | 1,0 | 1,0 | 1,0 | 1,0 |
| Ambient temperature [°C] | TA | -25 to + 70 | -25 to + 70 | -25 to + 70 | -25 to + 70 | -25 to + 70 | -25 to + 70 | -25 to + 70 |
| Frequency range [Hz] | f | 50 to 400 | 50 to 400 | 50 to 400 | 50 to 400 | 50 to 400 | 50 to 400 | 50 to 400 |
| Insulation test voltage [kVac] | VP | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
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