單項(xiàng)選擇題

The division of kilowatt load between two paralleled alternators is determined by the （）

A.amount of field excitation of the leading machine
B.load-speed characteristics of the governors
C.amount of field excitation to the lagging machine
D.type of alternator

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單項(xiàng)選擇題

The division of the kilowatt load between two AC generators operating in parallel is controlled by the settings and characteristics of the （）.

A.voltage regulators
B.field rheostats
C.reverse power relays
D.prime mover governors

單項(xiàng)選擇題

In a three-phase circuit, the phase voltages are （）

A.120°apart
B.160°apart
C.180°apart
D.360°apart

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The division of kilowatt load between two paralleled alternators is determined by the （）

你可能感興趣的試題

The division of the kilowatt load between two AC generators operating in parallel is controlled by the settings and characteristics of the （）.

In a three-phase circuit, the phase voltages are （）