Rotary gaps also altered the commutator with six to twelve studs per wheel, typically switching several thousand volts.
2.
Rotary gaps operated in two modes, power frequency ( typically, 100 or 120 breaks / second, corresponding to 50 Hz or 60 Hz supply ).
3.
But a typical commercial station in 1916 might include a 1 / 2 kW transformer that supplied 14, 000 volts, an eight section capacitor, and a rotary gap capable of handling a peak current of several hundred amperes.
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