lesson 21 marine electrical system. contents basic knowledge of current alternating current...
TRANSCRIPT
Lesson 21 Marine Electrical System
Contents
Basic Knowledge of Current Alternating Current Generator The Alternator Construction
Specifications (1)Specifications (1)
magnetic 磁性的 conductor 导体 stationary 静止的
connected with or produced by magnetism
a substance that allows electricity or heat to pass along it or through it
not moving; not intended to be moved
Specifications (2)Specifications (2)
amplifier 放大器 fluctuation 波动 eliminate 消除
an electrical device or piece of equipment that makes sounds or radio signals louder
an irregular rising and falling in number or amount; a variation
to remove or get rid of something/somebody
The Alternator Construction
Electrical Grounding
Electrical Elements
Special Terms (I)
1. 滑环2. 极3. 电磁铁4. 极性5. 电枢6. 励磁机7. 静止8. 无电刷9. 抵消
slipring
pole
electromagnet
polarity
armature
exciter
statically
brushless
counter
Special Terms (II)
10. 余弦11. 乘积12. 电感的13. 电容性的14. 滞后15. 超前16. 励磁17. 放大器18. 部件
cosine
product
inductive
capacitive
lagging
leading
excitation
amplifier
feature
Special Terms (III)
19. 震荡20. 过调21. 变压器22. 整流器23. 并激
hunting
overcorrecting
transformer
rectifiershunt
Useful Expressions
field coil
star formation
power factor
prime mover
series excitation
励磁线圈星型接法功率因数原动机串激
Assignment
1. Exercise II: 1-10
2. Reading comprehension
3. Summarize the text in your own words