Can all three-phase four wire meter boxes be equipped with transformers?

The three-phase meter box with transformer we have made includes three-phase 1-bit, three-phase 2-bit, three-phase 4-bit, etc. Generally, the transformer is mainly used on the three-phase four wire meter box. As long as the project needs to use the transformer, no matter how many meter boxes meet the electrical safety standards, the scheme can be customized. There are also some customer projects that are used on single-phase multi position meter boxes. The application of mutual inductor on the meter box is various