energize into transf.

[Arven_Strider]

The inrush current tests were conducted by energizing a full-rating field test UHV transformer into a
transmission system, using a circuit breaker on the 500kV secondary side. Tests were performed with these parameters: circuit breaker closing phase angle, and with closing resistor / without closing resister in a circuit breaker.
Первое предложение.

[Wolverin]

[Liquid_Sun]

... подключение трансформатора СВН в сеть линий электропередач с полной номинальной рабочей нагрузкой.