Closed-loop 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. Low-voltage current transformers for the proportional transformation of large currents to directly measurable smaller current values
ADVANTAGES
- Bolts or flat plug connection
- Bushing-type current transformers for direct conductor feedthrough
- Toroidal cores made of high-quality magnetic cores
- Frequency range 16 2/3 to 400 Hz optional
- High core output power and high-quality insulation (UL)
- Electrically isolated primary and secondary circuits
- Easy-to-assemble modular-type housing
- Variable connections, e.g. bolts, flat plugs, litz wires
- Wide range of housings with various push-through openings
Typical applications
Industry, Renewable energy sources, Railway engineering, Energy, automation and building technology
| Typ IE modular | 500 | 1000 | 2500 | ||
|---|---|---|---|---|---|
| IPN | Primary rated current | 500 | 1000 | 2500 | [A] |
| ImaxPN | Max. primary rated current | 600 | 1200 | 3000 | [A] |
| IaN | Secondary | [mA] | 1000 | ||
| RB | Load resistance | 5 | 15 | 30 | [Ω] |
| URB | Load voltage | 5 | 15 | 30 | [V] |
| PSek | Capacity | 5 | 15 | 30 | [VA] |
| KN | Transmission ratio | 500 | 1000 | 2500 | |
| Fi | Measuring accuracy(50 Hz) | 0,5 | 0,5 | 0,5 | [%] |
| f | Frequency | 50-400 | [Hz] | ||
| TA | Ambient temperature | -25 to +70 | [°C] | ||
| Vp | Insulation test | 3 | [KVac] | ||
| Connection | MS bolt / blade terminal 6,3 x 0,8 | [mm²] | |||
| Weight | 0,8 | 0,8 | 1,8 | [kg] | |
| Standards | 61869-2 | ||||
| Type | I [mm] [mm] |
h1/h2 [mm] [mm] |
t1/t2 [mm] [mm] |
s1/s2 [mm] [mm] |
b1/b2 [mm] [mm] |
D [mm] [mm] |
D1xD2 [mm] [mm] |
f [mm] [mm] |
e [mm] [mm] |
x1/x2 [mm] [mm] |
| IE modular 500 | 70 | 76/35 | 38/64 | 57/57 | 57/50 | 30,2 | 30,4×10,4 | 4,3 | 4,3 | 36/15 |
| IE modular 1000 | 94 | 100/47 | 42/72 | 78/78 | 78/60 | 38,5 | 40,5×13,5 | 5,3 | 5,3 | 36/15 |
| IE modular 2500 | 135 | 141/67,5 | 52/88 | 102/102 | 102/70 | 57,5 | 60,5×20,5 | 6,5 | 6,5 | 36/15 |
