Patent certificate


An oil sample collecting device for electrical equipment

An oil sample collecting device for electrical equipment

A method and system for power data acquisition and transmission

A method and system for power data acquisition and transmission

A convenient switchgear control device for easy installation and fixing

A convenient switchgear control device for easy installation and fixing

A transformer exhaust device with a timed exhaust function

A transformer exhaust device with a timed exhaust function

A partial discharge monitoring device with positioning function

A partial discharge monitoring device with positioning function

A high-voltage energized display interlock device with protective functions

A high-voltage energized display interlock device with protective functions

An energy-saving transformer with exhaust filtration

An energy-saving transformer with exhaust filtration

A switchgear with anti-interference function

A switchgear with anti-interference function

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