Abstract
The author completes the 110 kVs to need part of design works of set up the transformer substations, putting forward the lord of that transformer substation to connect the line project and carried on the short-circuit electric current calculation first, on this foundation to the 110 kV circuit electric current with each other the feeling machine, lord becomes each side electric current with each other the feeling machine, lord changes the protection, the 110 kV circuit protection, the 10 kV protect and the related auto equip to carry on install, the tiny machine of DSA2322, DSA2326, DSA2302D, DSA2361, DSA2364, RCS94 etc. that adopt the forerunner protection and equip automatically, carry on to the each device whole detailed settle the calculation.Whole compute certainly fresh and clear and outstanding the characteristics that each one protect, in order to satisfy the lord to change in install and wholely settling the value and the 110 kV circuit to protect selectivity, intelligent degree and dependable sex requests.
Return at the same time changed the protection and the 110 kV circuits to carry on to the lord two times principle diagram of design.
Key Words transformer protection, circuit protection, equip automatically, whole settle the calculation, design
