The operating methods of neutral points differ, as do their technical characteristics and working conditions. Consequently, the impact and requirements on the reliability of operation, equipment insulation, and protective measures are also different.

The BHG-ZJB type neutral point gap grounding protection device for 110KV, 220KV, 330KV, and 500KV power transformers is designed to achieve either grounded or ungrounded operation of the neutral point, thereby preventing voltage spikes caused by lightning strikes and faults, which can damage the transformer's insulation. This product is widely applicable in the power, metallurgy, chemical, and coal industries.