The vibration signal sent out during the operation of transformer can reflect the internal mechanical performance state. If the state of core, winding and other vibration sources changes, the ...

Transformer terminal equivalents obtained via admittance measurements are suitable for simulating high-frequency transient interaction between the transformer and the network. This paper augments the ...

The report into the substation fire that brought Heathrow to a standstill in March is damning for National Grid. It reveals that the blaze was caused by a fault detected seven years ago but not fixed.