What is the use
of electric heaters in the alternator?
交流发电机内的电加热器的用途是什么?( )
A: They are used to
warm up the alternator when starting.
用于启动时给交流发电机加热。
B: They are used to
prevent condensation on the windings when the alternator is not in
use.
用于防止当交流发电机不用时绕组上的冷凝。
C: They are used to
keep the alternator warm when running.
用于运转时保持交流发电机是热的。
D: They are used to heat up the cooling water.用于加热冷却水
of electric heaters in the alternator?
交流发电机内的电加热器的用途是什么?( )
A: They are used to
warm up the alternator when starting.
用于启动时给交流发电机加热。
B: They are used to
prevent condensation on the windings when the alternator is not in
use.
用于防止当交流发电机不用时绕组上的冷凝。
C: They are used to
keep the alternator warm when running.
用于运转时保持交流发电机是热的。
D: They are used to heat up the cooling water.用于加热冷却水
举一反三
- 测速发电机可分为交流测速发电机和直流测速发电机两大类。（ ）[br][/br]正确[br][/br]错误
- 用于开环伺服系统中的执行元件是(<br/>) A: 交流伺服电机 B: 直流伺服电机 C: 步进电机 D: 异步电动机
- 交流发电机转子总成是发电机磁场部分。(<br/>)
- I don’t swim now,<br/>but I ________ when I was a kid. A: used to it B: used to<br/>doing it C: used to D: used to do
- Dick()in<br/>America,but<br/>he has been used to eating Chinese<br/>food since he moved to China. A: used<br/>to live B: is<br/>used to live C: is<br/>used to live D: used<br/>to living