INDOOR BUSBAR TYPE CURRENT TRANSFORMERS AD12, AD17, AD24, AD24-L
These models are designed for indoor installation in medium voltage switchgear systems. They are suitable for measuring, metering, and protection purposes in 12 kV to 36 kV systems, depending on model.
Type: Indoor Block Type – Support Mounted
| Model | Application Voltage | Typical Primary Current Range | Short-Time Thermal Current (Ith) | Typical Ratios | Burden (VA) | Accuracy Class |
|---|---|---|---|---|---|---|
| AD12 | Up to 12 kV | 100 A – 600 A | 16 – 25 kA / 1s | 100/5, 200/5 | 15 – 30 | 0.5, 1.0, 5P10 |
| AD17 | Up to 17.5 kV | 200 A – 800 A | 25 – 31.5 kA / 1s | 200/5, 400/5 | 15 – 30 | 0.5, 1.0, 5P10 |
| AD24 | Up to 24 kV | 300 A – 1000 A | 31.5 – 40 kA / 1s | 400/5, 600/5 | 15 – 30 | 0.5, 1.0, 5P10 |
| AD24-L | Up to 24 kV (Large) | 600 A – 1200 A | 31.5 – 40 kA / 1s | 800/5, 1000/5 | 15 – 30 | 0.5, 1.0, 5P10 |
Frequency: 50/60 Hz
Insulation Level (Typical):
AD12: 12/28/75 kV
AD17: 17.5/38/95 kV
AD24/AD24-L: 24/50/125 kV
Mounting: Indoor installation on epoxy-insulated support base
Standards: IEC 61869-2 or IEC 60044-1
