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【单选题】
The reason why the stable short-circuit current of the synchronous generator is not very large ( ).
A.
Large leakage impedance
B.
Short-circuit current produces strong demagnetization;
C.
The armature reaction produces magnetization
D.
The synchronous reactance is relatively large.
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45、45
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45、60
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60、60
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a dreamlike paradise
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the sun and the moon in the heart
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a peaceful lake
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a holy place
【单选题】When the synchronous generator is connected in quasi synchronous parallel with the power grid, all other conditions are met except that the generator voltage is only less than 5% of the power grid vol...
A.
Generate huge current, so that the generator cannot be paralleled
B.
Generate a small current, which is inductive current
C.
Generate a small current, which is a capacitive current
D.
Generate a small current, which is an active current
【单选题】In the process of generator paralleling, when the phase of generator voltage and system voltage is inconsistent, impulse current will be generated. The maximum value of impulse current occurs when the...
A.
0°
B.
90°
C.
180°
D.
100°
【单选题】Where did the loanword “Shangrila” initially occur?
A.
In Diqing Titetan Autonomous Prefecture
B.
In Shangrila County
C.
in the novel The Lost Horizon
D.
None of them
【单选题】When the synchronous generator is connected in parallel with the power grid, some conditions must be met, but the first condition that must be absolutely met is ()
A.
Equal voltage
B.
Same phase sequence
C.
Same frequency
D.
Same phase
相关题目：
【多选题】which ones are the special cloud views of Mount Cangshan in Dali？
A.
Husband-Expecting Clouds
B.
Jade Belt Clouds
C.
summer clouds
D.
winter clouds
【单选题】These natural veins of marbles are spoken of as “______”.
A.
Natural weavings
B.
Natural Chinese Paintings
C.
Natural Oil Paintings
D.
Natural landscapes
【单选题】Hand motions in Beat 5 of the Waist-twining Silk-flinging: Raise both arms forward to （ ） degrees in the upper left and fling the silk, make two arms form a （ ）-degree angle.
A.
45、45
B.
45、60
C.
60、60
D.
60、45
【单选题】InTibetan culture, what does the term “Shangrila” mean？
A.
a dreamlike paradise
B.
the sun and the moon in the heart
C.
a peaceful lake
D.
a holy place
【单选题】When the synchronous generator is connected in quasi synchronous parallel with the power grid, all other conditions are met except that the generator voltage is only less than 5% of the power grid vol...
A.
Generate huge current, so that the generator cannot be paralleled
B.
Generate a small current, which is inductive current
C.
Generate a small current, which is a capacitive current
D.
Generate a small current, which is an active current
【单选题】In the process of generator paralleling, when the phase of generator voltage and system voltage is inconsistent, impulse current will be generated. The maximum value of impulse current occurs when the...
A.
0°
B.
90°
C.
180°
D.
100°
【单选题】Where did the loanword “Shangrila” initially occur?
A.
In Diqing Titetan Autonomous Prefecture
B.
In Shangrila County
C.
in the novel The Lost Horizon
D.
None of them
【单选题】When the synchronous generator is connected in parallel with the power grid, some conditions must be met, but the first condition that must be absolutely met is ()
A.
Equal voltage
B.
Same phase sequence
C.
Same frequency
D.
Same phase
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