Optimal construction of secondary wiring of transformer station;

The existed secondary wiring method has some disadvantages such as the limited types of element which can be dealed with,the dissatisfactory optimization effect and the need of handiwork to generate terminal wiring diagram.

Application of anti-trip of the circuit breakers and secondary wiring of 2 trip coils is the wiring coordinated to the duplicated arrangement of protection.

Improvement on secondary connection of the voltage transformer to avoid magnetic resonance in 10 kV power supply system;

It proposes working voltage of zero-sequence differential protection and its secondary connection′s testing way.

A common mistake and its harm in CT secondary connection of transformer differential protection were analyzed,the correct connection mode was explaned,and how to use the hexagon vector diagram of checking was introduced.

Practice and ponder on changing mode of connection of rectiformer;

The principles for the mode of connection of whole compensating device and how to choosing the parameter of capacitor and current-limiting reactor are analyzed.

It gives technical characteristics about the construction of capacitive winding, mode of connection and circuit protection in 3phase capacitance lowloss energysaving power transformer.