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On Load Tap Changer. OLTC. What is an OLTC?. Standard defines OLTC as 3.14 load tap changer (LTC): A selector switch device, which may include current interrupting contactors, used to change transformer taps with the transformer energized and carrying full load. OLTC location. Diverter.
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On Load Tap Changer OLTC
What is an OLTC? Standard defines OLTC as • 3.14 load tap changer (LTC): A selector switch device, which may include current interrupting contactors, used to change transformer taps with the transformer energized and carrying full load.
Diverter Selector
Dr. Jansen 1927 patent • Make before break • During that period – circulating current • To minimize it • Resistors • Reactors PA
NLTC • No load tap changer not true • De energized tap changer • DETC