Bus-Tie Cabinet

A Bus-Tie Cabinet connects two transformers. If one transformer fails, the other takes all the load. Your production does not stop. We build this cabinet with three air circuit breakers. Two for the incoming lines and one for the tie. We add both mechanical and electrical interlocks. These interlocks make sure you never connect the two transformers together. That would cause a big short circuit. We tested our interlock with a short-circuit simulation. It worked perfectly every time.

We can make your Bus-Tie Cabinet fully automatic. When the main transformer loses power, the tie breaker closes by itself. The switch takes less than one second. Most machines do not even notice the power loss. For a production line, this means no wasted products and no restart time. We did a project for a wastewater plant in Jiangsu. Their old Bus-Tie Cabinet from another supplier jammed after six months. We opened it and found a rusty spring. We replaced it with stainless steel springs. The client said, "I should have called you earlier."

We leave a port for a smart meter. You can monitor power on each bus section from your office. This helps you balance the load. A Bus-Tie Cabinet costs more upfront, but it saves you from a costly production stop. Hangzhou Dagang Electric Co., Ltd. has supplied these cabinets to factories, data centers, and hospitals. Can you add remote control? Yes, via Modbus. Lead time? 15-20 days. Do you offer on-site tuning? Yes, free within Zhejiang province.