General Description
ADR133A is a numerical transformer differential relay with dual bias characteristic for two winding transformer.
| ANSI | IEC | Protection Functions |
| 87 | - | Dual Bias Differential Protection. |
| Model | Functional Details | Cabinet Style |
| ADR133A | Non Communicable Numerical Differential relay for two winding transformer. | CSD-V-120 |
Numerical 3 Pole Differential Relay : ADR133A
Specifications
- Online display of Phase Current / Differential Current.
- Latching of fault current value.
- High Speed operation.
- Operation is based on fundamental frequency value.
- Harmonics restrain for Transformer charging and CT saturation condition.
- Programmable Internal ICT (Interposing CT) ratio to match different transformers having different vector groups.
- Programmable dual bias setting.