当前位置: X题卡 > 所有题目 > 题目详情

When the voltage remains constant and the resistance is increased in a series circuit, the flow of ...

查看本题答案

你可能感兴趣的试题

slightly less than the oncoming generator frequency  the same as the bus frequency  slightly greater than the bus frequency  the same as the bus voltage  
blow out coils  governor relay  under voltage trips  reverse current trips  
To cut out generators when they are no longer required  To cut in additional generators automatically as required  To divide the KW load equally between generators operating in parallel  To divide reactive current between generators operating in parallel  
instantaneous voltage  average voltage  RMS voltage  peak voltage  
droop  drop  dip  regulation  
lagging  leading  maximum  minimum  
are; remain    is; remain    are; remains    is; remains  
the recommended current and voltage rating  higher current and voltage rating  higher current and lower voltage rating  lower current and higher voltage rating  
Current and voltage may be in phase  Current may lead the voltage  Current may lag the voltage  All of the above  
speed of the prime mover  AC excitation to the field  DC excitation to the field  DC excitation of the voltage regulator  
AC voltage to the armature  AC voltage to the field  DC voltage to the armature  DC voltage to the field  
residual magnetism  voltage regulator  electrical current for excitation  the other running generator  
Low voltage protection circuit  Non-renewable link fuse  Renewable link fuse  Low voltage release circuit  
minimum  maximum  leading  lagging  
open the generator circuit breaker  switch the voltage regulator to "manual"  decrease the field excitation to minimum  reduce the load on the unit  
when  so as  such that  though  
the circuit being worked on and the location of all switches and circuit breakerscontrolling it  first-aid techniques for treating electrical shock  cardiopulmonary resuscitation (CPR)  All of the above  
prime mover governor  exciter generator  voltage regulator  reverse power relay  
varying the D.Cexciter voltage  varying the reluctance of the air gap  regulating the speed of the prime mover  shorting out part of the armature windings  
prime mover speed  exciter output voltage  load on the alternator  number of poles  

热门试题

更多