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F3-phase 3-wire branch-controlled A connection Ac voltage controller 4 The operation principle is the same as 3 independent single phase Ac voltage controllers 4 Application-Thyristor-controlled reactor(TCR To control the effective current flowing through the reactor by controlling delay angle, therefore control the reactive power absorbed by the reactor uc 18Power Electron cs i 18 3 -phase 3 phase 3 -wire branch wire branch -controlled controlled ∆ connection AC voltage controller connection AC voltage controller The operation principle is the The operation principle is the same as 3 independent single same as 3 independent single - phase AC voltage controllers. phase AC voltage controllers. Application Application —Thyristor Thyristor-controlled reactor (TCR) controlled reactor (TCR) – To control the effective current flowing through the reactor by To control the effective current flowing through the reactor by controlling delay angle, therefore control the reactive power controlling delay angle, therefore control the reactive power absorbed by the reactor. absorbed by the reactor. ua i a ub uc n b a c a) b) c)
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