Dry type transformers rely on air convection for cooling, usually for local lighting and electronic circuits. In brief, dry-type transformer refers to the transformer whose core and winding are not immersed in insulating oil. However, this t...

Because there is a gap in the joint of silicon steel sheet of transformer core, the magnetic flux suddenly increases through the joint, so the magnetic flux has to bypass the gap of the joint and enter the adjacent laminations through the sh...

When using frequency converter, leakage protector must not be used. Q: a 185KW frequency converter is installed for the induced draft fan of a 185KW boiler. As soon as the frequency converter is installed and started, the switching off of th...

Major national electrical certification (updating...) CB certification, CE certification, SASO certification, COC certification, Kema certification, ASTA certification, SNI certification, SABS certification, UL certification...

Comparison of advantages and disadvantages of MNS, GCK, GCD and GCS series switchgear...